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xc_cacher.c @ 1040

Revision 1040, 96.9 KB (checked in by moo, 10 months ago)
split cacher as sub module
Property svn:eol-style set to `native`

Line
1	#if 0
2	#define XCACHE_DEBUG
3	#endif
4
5	#if 0
6	#define SHOW_DPRINT
7	#endif
8
9	/* {{{ macros */
10	#include "xc_cacher.h"
11	#include "xcache.h"
12	#include "xc_processor.h"
13	#include "xcache_globals.h"
14	#include "xcache/xc_extension.h"
15	#include "xcache/xc_ini.h"
16	#include "xcache/xc_utils.h"
17	#include "xcache/xc_sandbox.h"
18	#include "util/xc_trace.h"
19	#include "util/xc_vector.h"
20	#include "util/xc_align.h"
21
22	#include "php.h"
23	#include "ext/standard/info.h"
24	#include "ext/standard/md5.h"
25	#ifdef ZEND_ENGINE_2_1
26	#include "ext/date/php_date.h"
27	#endif
28	#include "ext/standard/php_math.h"
29	#include "SAPI.h"
30
31	#define VAR_ENTRY_EXPIRED(pentry) ((pentry)->ttl && XG(request_time) > (pentry)->ctime + (time_t) (pentry)->ttl)
32	#define CHECK(x, e) do { if ((x) == NULL) { zend_error(E_ERROR, "XCache: " e); goto err; } } while (0)
33	#define LOCK(x) xc_lock((x)->lck)
34	#define UNLOCK(x) xc_unlock((x)->lck)
35
36	#define ENTER_LOCK_EX(x) \
37	xc_lock((x)->lck); \
38	zend_try { \
39	do
40	#define LEAVE_LOCK_EX(x) \
41	while (0); \
42	} zend_catch { \
43	catched = 1; \
44	} zend_end_try(); \
45	xc_unlock((x)->lck)
46
47	#define ENTER_LOCK(x) do { \
48	int catched = 0; \
49	ENTER_LOCK_EX(x)
50	#define LEAVE_LOCK(x) \
51	LEAVE_LOCK_EX(x); \
52	if (catched) { \
53	zend_bailout(); \
54	} \
55	} while(0)
56	/* }}} */
57
58	/* {{{ globals */
59	static char *xc_shm_scheme = NULL;
60	static char *xc_mmap_path = NULL;
61
62	static zend_bool xc_admin_enable_auth = 1;
63	static xc_hash_t xc_php_hcache = { 0, 0, 0 };
64	static xc_hash_t xc_php_hentry = { 0, 0, 0 };
65	static xc_hash_t xc_var_hcache = { 0, 0, 0 };
66	static xc_hash_t xc_var_hentry = { 0, 0, 0 };
67
68	static zend_ulong xc_php_ttl = 0;
69	static zend_ulong xc_var_maxttl = 0;
70
71	enum { xc_deletes_gc_interval = 120 };
72	static zend_ulong xc_php_gc_interval = 0;
73	static zend_ulong xc_var_gc_interval = 0;
74
75	/* total size */
76	static zend_ulong xc_php_size = 0;
77	static zend_ulong xc_var_size = 0;
78
79	static xc_cache_t **xc_php_caches = NULL;
80	static xc_cache_t **xc_var_caches = NULL;
81
82	static zend_bool xc_initized = 0;
83	static time_t xc_init_time = 0;
84	static long unsigned xc_init_instance_id = 0;
85	#ifdef ZTS
86	static long unsigned xc_init_instance_subid = 0;
87	#endif
88	static zend_compile_file_t *old_compile_file = NULL;
89
90	static zend_bool xc_readonly_protection = 0;
91
92	zend_bool xc_have_op_array_ctor = 0;
93
94	typedef enum { XC_TYPE_PHP, XC_TYPE_VAR } xc_entry_type_t;
95
96	/* TODO */
97	static inline zend_bool xc_cache_disabled()
98	{
99	return 0;
100	}
101	/* }}} */
102
103	/* any function in _unlocked is only safe be called within locked (single thread access) area /
104
105	static void xc_php_add_unlocked(xc_cache_t cache, xc_entry_data_php_t php) /* {{{ */
106	{
107	xc_entry_data_php_t **head = &(cache->phps[php->hvalue]);
108	php->next = *head;
109	*head = php;
110	cache->phps_count ++;
111	}
112	/* }}} */
113	static xc_entry_data_php_t xc_php_store_unlocked(xc_cache_t cache, xc_entry_data_php_t php TSRMLS_DC) / {{{ */
114	{
115	xc_entry_data_php_t *stored_php;
116
117	php->hits = 0;
118	php->refcount = 0;
119	stored_php = xc_processor_store_xc_entry_data_php_t(cache, php TSRMLS_CC);
120	if (stored_php) {
121	xc_php_add_unlocked(cache, stored_php);
122	return stored_php;
123	}
124	else {
125	cache->ooms ++;
126	return NULL;
127	}
128	}
129	/* }}} */
130	static xc_entry_data_php_t xc_php_find_unlocked(xc_cache_t cache, xc_entry_data_php_t php TSRMLS_DC) / {{{ */
131	{
132	xc_entry_data_php_t *p;
133	for (p = cache->phps[php->hvalue]; p; p = (xc_entry_data_php_t *) p->next) {
134	if (memcmp(&php->md5.digest, &p->md5.digest, sizeof(php->md5.digest)) == 0) {
135	p->hits ++;
136	return p;
137	}
138	}
139	return NULL;
140	}
141	/* }}} */
142	static void xc_php_free_unlocked(xc_cache_t cache, xc_entry_data_php_t php) /* {{{ */
143	{
144	cache->mem->handlers->free(cache->mem, (xc_entry_data_php_t *)php);
145	}
146	/* }}} */
147	static void xc_php_addref_unlocked(xc_entry_data_php_t php) / {{{ */
148	{
149	php->refcount ++;
150	}
151	/* }}} */
152	static void xc_php_release_unlocked(xc_cache_t cache, xc_entry_data_php_t php) /* {{{ */
153	{
154	if (-- php->refcount == 0) {
155	xc_entry_data_php_t **pp = &(cache->phps[php->hvalue]);
156	xc_entry_data_php_t *p;
157	for (p = *pp; p; pp = &(p->next), p = p->next) {
158	if (memcmp(&php->md5.digest, &p->md5.digest, sizeof(php->md5.digest)) == 0) {
159	/* unlink */
160	*pp = p->next;
161	xc_php_free_unlocked(cache, php);
162	return;
163	}
164	}
165	assert(0);
166	}
167	}
168	/* }}} */
169
170	static inline int xc_entry_equal_unlocked(xc_entry_type_t type, const xc_entry_t entry1, const xc_entry_t entry2 TSRMLS_DC) /* {{{ */
171	{
172	/* this function isn't required but can be in unlocked */
173	switch (type) {
174	case XC_TYPE_PHP:
175	{
176	const xc_entry_php_t php_entry1 = (const xc_entry_php_t ) entry1;
177	const xc_entry_php_t php_entry2 = (const xc_entry_php_t ) entry2;
178	if (php_entry1->file_inode && php_entry2->file_inode) {
179	zend_bool inodeIsSame = php_entry1->file_inode == php_entry2->file_inode
180	&& php_entry1->file_device == php_entry2->file_device;
181	if (XG(experimental)) {
182	/* new experimental behavior: quick check by inode, first */
183	if (!inodeIsSame) {
184	return 0;
185	}
186
187	/* and then opened_path compare */
188	}
189	else {
190	/* old behavior: inode check only */
191	return inodeIsSame;
192	}
193	}
194	}
195
196	assert(IS_ABSOLUTE_PATH(entry1->name.str.val, entry1->name.str.len));
197	assert(IS_ABSOLUTE_PATH(entry2->name.str.val, entry2->name.str.len));
198
199	return entry1->name.str.len == entry2->name.str.len
200	&& memcmp(entry1->name.str.val, entry2->name.str.val, entry1->name.str.len + 1) == 0;
201
202	case XC_TYPE_VAR:
203	#ifdef IS_UNICODE
204	if (entry1->name_type != entry2->name_type) {
205	return 0;
206	}
207
208	if (entry1->name_type == IS_UNICODE) {
209	return entry1->name.ustr.len == entry2->name.ustr.len
210	&& memcmp(entry1->name.ustr.val, entry2->name.ustr.val, (entry1->name.ustr.len + 1) * sizeof(UChar)) == 0;
211	}
212	#endif
213	return entry1->name.str.len == entry2->name.str.len
214	&& memcmp(entry1->name.str.val, entry2->name.str.val, entry1->name.str.len + 1) == 0;
215	break;
216
217	default:
218	assert(0);
219	}
220	return 0;
221	}
222	/* }}} */
223	static inline int xc_entry_has_prefix_unlocked(xc_entry_type_t type, xc_entry_t entry, zval prefix) /* {{{ */
224	{
225	/* this function isn't required but can be in unlocked */
226
227	#ifdef IS_UNICODE
228	if (entry->name_type != prefix->type) {
229	return 0;
230	}
231
232	if (entry->name_type == IS_UNICODE) {
233	if (entry->name.ustr.len < Z_USTRLEN_P(prefix)) {
234	return 0;
235	}
236	return memcmp(entry->name.ustr.val, Z_USTRVAL_P(prefix), Z_USTRLEN_P(prefix) * sizeof(UChar)) == 0;
237	}
238	#endif
239	if (prefix->type != IS_STRING) {
240	return 0;
241	}
242
243	if (entry->name.str.len < Z_STRLEN_P(prefix)) {
244	return 0;
245	}
246
247	return memcmp(entry->name.str.val, Z_STRVAL_P(prefix), Z_STRLEN_P(prefix)) == 0;
248	}
249	/* }}} */
250	static void xc_entry_add_unlocked(xc_cache_t cache, xc_hash_value_t entryslotid, xc_entry_t entry) /* {{{ */
251	{
252	xc_entry_t **head = &(cache->entries[entryslotid]);
253	entry->next = *head;
254	*head = entry;
255	cache->entries_count ++;
256	}
257	/* }}} */
258	static xc_entry_t xc_entry_store_unlocked(xc_entry_type_t type, xc_cache_t cache, xc_hash_value_t entryslotid, xc_entry_t entry TSRMLS_DC) / {{{ */
259	{
260	xc_entry_t *stored_entry;
261
262	entry->hits = 0;
263	entry->ctime = XG(request_time);
264	entry->atime = XG(request_time);
265	stored_entry = type == XC_TYPE_PHP
266	? (xc_entry_t ) xc_processor_store_xc_entry_php_t(cache, (xc_entry_php_t ) entry TSRMLS_CC)
267	: (xc_entry_t ) xc_processor_store_xc_entry_var_t(cache, (xc_entry_var_t ) entry TSRMLS_CC);
268	if (stored_entry) {
269	xc_entry_add_unlocked(cache, entryslotid, stored_entry);
270	++cache->updates;
271	return stored_entry;
272	}
273	else {
274	cache->ooms ++;
275	return NULL;
276	}
277	}
278	/* }}} */
279	static xc_entry_php_t xc_entry_php_store_unlocked(xc_cache_t cache, xc_hash_value_t entryslotid, xc_entry_php_t entry_php TSRMLS_DC) / {{{ */
280	{
281	return (xc_entry_php_t ) xc_entry_store_unlocked(XC_TYPE_PHP, cache, entryslotid, (xc_entry_t ) entry_php TSRMLS_CC);
282	}
283	/* }}} */
284	static xc_entry_var_t xc_entry_var_store_unlocked(xc_cache_t cache, xc_hash_value_t entryslotid, xc_entry_var_t entry_var TSRMLS_DC) / {{{ */
285	{
286	return (xc_entry_var_t ) xc_entry_store_unlocked(XC_TYPE_VAR, cache, entryslotid, (xc_entry_t ) entry_var TSRMLS_CC);
287	}
288	/* }}} */
289	static void xc_entry_free_real_unlocked(xc_entry_type_t type, xc_cache_t cache, volatile xc_entry_t entry) /* {{{ */
290	{
291	if (type == XC_TYPE_PHP) {
292	xc_php_release_unlocked(cache, ((xc_entry_php_t *) entry)->php);
293	}
294	cache->mem->handlers->free(cache->mem, (xc_entry_t *)entry);
295	}
296	/* }}} */
297	static void xc_entry_free_unlocked(xc_entry_type_t type, xc_cache_t cache, xc_entry_t entry TSRMLS_DC) /* {{{ */
298	{
299	cache->entries_count --;
300	if ((type == XC_TYPE_PHP ? ((xc_entry_php_t *) entry)->refcount : 0) == 0) {
301	xc_entry_free_real_unlocked(type, cache, entry);
302	}
303	else {
304	entry->next = cache->deletes;
305	cache->deletes = entry;
306	entry->dtime = XG(request_time);
307	cache->deletes_count ++;
308	}
309	return;
310	}
311	/* }}} */
312	static void xc_entry_remove_unlocked(xc_entry_type_t type, xc_cache_t cache, xc_hash_value_t entryslotid, xc_entry_t entry TSRMLS_DC) /* {{{ */
313	{
314	xc_entry_t **pp = &(cache->entries[entryslotid]);
315	xc_entry_t *p;
316	for (p = *pp; p; pp = &(p->next), p = p->next) {
317	if (xc_entry_equal_unlocked(type, entry, p TSRMLS_CC)) {
318	/* unlink */
319	*pp = p->next;
320	xc_entry_free_unlocked(type, cache, entry TSRMLS_CC);
321	return;
322	}
323	}
324	assert(0);
325	}
326	/* }}} */
327	static xc_entry_t xc_entry_find_unlocked(xc_entry_type_t type, xc_cache_t cache, xc_hash_value_t entryslotid, xc_entry_t entry TSRMLS_DC) / {{{ */
328	{
329	xc_entry_t *p;
330	for (p = cache->entries[entryslotid]; p; p = p->next) {
331	if (xc_entry_equal_unlocked(type, entry, p TSRMLS_CC)) {
332	zend_bool fresh;
333	switch (type) {
334	case XC_TYPE_PHP:
335	{
336	xc_entry_php_t p_php = (xc_entry_php_t ) p;
337	xc_entry_php_t entry_php = (xc_entry_php_t ) entry;
338	fresh = p_php->file_mtime == entry_php->file_mtime && p_php->file_size == entry_php->file_size;
339	}
340	break;
341
342	case XC_TYPE_VAR:
343	{
344	fresh = !VAR_ENTRY_EXPIRED(p);
345	}
346	break;
347
348	default:
349	assert(0);
350	}
351
352	if (fresh) {
353	p->hits ++;
354	p->atime = XG(request_time);
355	return p;
356	}
357
358	xc_entry_remove_unlocked(type, cache, entryslotid, p TSRMLS_CC);
359	return NULL;
360	}
361	}
362	return NULL;
363	}
364	/* }}} */
365	static void xc_entry_hold_php_unlocked(xc_cache_t cache, xc_entry_php_t entry TSRMLS_DC) /* {{{ */
366	{
367	TRACE("hold %d:%s", entry->file_inode, entry->entry.name.str.val);
368	entry->refcount ++;
369	xc_stack_push(&XG(php_holds)[cache->cacheid], (void *)entry);
370	}
371	/* }}} */
372	static inline zend_uint advance_wrapped(zend_uint val, zend_uint count) /* {{{ */
373	{
374	if (val + 1 >= count) {
375	return 0;
376	}
377	return val + 1;
378	}
379	/* }}} */
380	static void xc_counters_inc(time_t curtime, zend_uint curslot, time_t period, zend_ulong counters, zend_uint count TSRMLS_DC) / {{{ */
381	{
382	time_t n = XG(request_time) / period;
383	if (*curtime != n) {
384	zend_uint target_slot = n % count;
385	if (n - *curtime > period) {
386	memset(counters, 0, sizeof(counters[0]) * count);
387	}
388	else {
389	zend_uint slot;
390	for (slot = advance_wrapped(*curslot, count);
391	slot != target_slot;
392	slot = advance_wrapped(slot, count)) {
393	counters[slot] = 0;
394	}
395	counters[target_slot] = 0;
396	}
397	*curtime = n;
398	*curslot = target_slot;
399	}
400	counters[*curslot] ++;
401	}
402	/* }}} */
403	static void xc_cache_hit_unlocked(xc_cache_t cache TSRMLS_DC) / {{{ */
404	{
405	cache->hits ++;
406
407	xc_counters_inc(&cache->hits_by_hour_cur_time
408	, &cache->hits_by_hour_cur_slot, 60 * 60
409	, cache->hits_by_hour
410	, sizeof(cache->hits_by_hour) / sizeof(cache->hits_by_hour[0])
411	TSRMLS_CC);
412
413	xc_counters_inc(&cache->hits_by_second_cur_time
414	, &cache->hits_by_second_cur_slot
415	, 1
416	, cache->hits_by_second
417	, sizeof(cache->hits_by_second) / sizeof(cache->hits_by_second[0])
418	TSRMLS_CC);
419	}
420	/* }}} */
421
422	/* helper function that loop through each entry */
423	#define XC_ENTRY_APPLY_FUNC(name) zend_bool name(xc_entry_t *entry TSRMLS_DC)
424	typedef XC_ENTRY_APPLY_FUNC((*cache_apply_unlocked_func_t));
425	static void xc_entry_apply_unlocked(xc_entry_type_t type, xc_cache_t cache, cache_apply_unlocked_func_t apply_func TSRMLS_DC) / {{{ */
426	{
427	xc_entry_t p, *pp;
428	int i, c;
429
430	for (i = 0, c = cache->hentry->size; i < c; i ++) {
431	pp = &(cache->entries[i]);
432	for (p = pp; p; p = pp) {
433	if (apply_func(p TSRMLS_CC)) {
434	/* unlink */
435	*pp = p->next;
436	xc_entry_free_unlocked(type, cache, p TSRMLS_CC);
437	}
438	else {
439	pp = &(p->next);
440	}
441	}
442	}
443	}
444	/* }}} */
445
446	#define XC_CACHE_APPLY_FUNC(name) void name(xc_cache_t *cache TSRMLS_DC)
447	/* call graph:
448	* xc_gc_expires_php -> xc_gc_expires_one -> xc_entry_apply_unlocked -> xc_gc_expires_php_entry_unlocked
449	* xc_gc_expires_var -> xc_gc_expires_one -> xc_entry_apply_unlocked -> xc_gc_expires_var_entry_unlocked
450	*/
451	static XC_ENTRY_APPLY_FUNC(xc_gc_expires_php_entry_unlocked) /* {{{ */
452	{
453	TRACE("ttl %lu, %lu %lu", (zend_ulong) XG(request_time), (zend_ulong) entry->atime, xc_php_ttl);
454	if (XG(request_time) > entry->atime + (time_t) xc_php_ttl) {
455	return 1;
456	}
457	return 0;
458	}
459	/* }}} */
460	static XC_ENTRY_APPLY_FUNC(xc_gc_expires_var_entry_unlocked) /* {{{ */
461	{
462	if (VAR_ENTRY_EXPIRED(entry)) {
463	return 1;
464	}
465	return 0;
466	}
467	/* }}} */
468	static void xc_gc_expires_one(xc_entry_type_t type, xc_cache_t cache, zend_ulong gc_interval, cache_apply_unlocked_func_t apply_func TSRMLS_DC) / {{{ */
469	{
470	TRACE("interval %lu, %lu %lu", (zend_ulong) XG(request_time), (zend_ulong) cache->last_gc_expires, gc_interval);
471	if (XG(request_time) >= cache->last_gc_expires + (time_t) gc_interval) {
472	ENTER_LOCK(cache) {
473	if (XG(request_time) >= cache->last_gc_expires + (time_t) gc_interval) {
474	cache->last_gc_expires = XG(request_time);
475	xc_entry_apply_unlocked(type, cache, apply_func TSRMLS_CC);
476	}
477	} LEAVE_LOCK(cache);
478	}
479	}
480	/* }}} */
481	static void xc_gc_expires_php(TSRMLS_D) /* {{{ */
482	{
483	int i, c;
484
485	if (!xc_php_ttl \|\| !xc_php_gc_interval \|\| !xc_php_caches) {
486	return;
487	}
488
489	for (i = 0, c = xc_php_hcache.size; i < c; i ++) {
490	xc_gc_expires_one(XC_TYPE_PHP, xc_php_caches[i], xc_php_gc_interval, xc_gc_expires_php_entry_unlocked TSRMLS_CC);
491	}
492	}
493	/* }}} */
494	static void xc_gc_expires_var(TSRMLS_D) /* {{{ */
495	{
496	int i, c;
497
498	if (!xc_var_gc_interval \|\| !xc_var_caches) {
499	return;
500	}
501
502	for (i = 0, c = xc_var_hcache.size; i < c; i ++) {
503	xc_gc_expires_one(XC_TYPE_VAR, xc_var_caches[i], xc_var_gc_interval, xc_gc_expires_var_entry_unlocked TSRMLS_CC);
504	}
505	}
506	/* }}} */
507
508	static XC_CACHE_APPLY_FUNC(xc_gc_delete_unlocked) /* {{{ */
509	{
510	xc_entry_t p, *pp;
511
512	pp = &cache->deletes;
513	for (p = pp; p; p = pp) {
514	xc_entry_php_t entry = (xc_entry_php_t ) p;
515	if (XG(request_time) - p->dtime > 3600) {
516	entry->refcount = 0;
517	/* issue warning here */
518	}
519	if (entry->refcount == 0) {
520	/* unlink */
521	*pp = p->next;
522	cache->deletes_count --;
523	xc_entry_free_real_unlocked(XC_TYPE_PHP, cache, p);
524	}
525	else {
526	pp = &(p->next);
527	}
528	}
529	}
530	/* }}} */
531	static XC_CACHE_APPLY_FUNC(xc_gc_deletes_one) /* {{{ */
532	{
533	if (cache->deletes && XG(request_time) - cache->last_gc_deletes > xc_deletes_gc_interval) {
534	ENTER_LOCK(cache) {
535	if (cache->deletes && XG(request_time) - cache->last_gc_deletes > xc_deletes_gc_interval) {
536	cache->last_gc_deletes = XG(request_time);
537	xc_gc_delete_unlocked(cache TSRMLS_CC);
538	}
539	} LEAVE_LOCK(cache);
540	}
541	}
542	/* }}} */
543	static void xc_gc_deletes(TSRMLS_D) /* {{{ */
544	{
545	int i, c;
546
547	if (xc_php_caches) {
548	for (i = 0, c = xc_php_hcache.size; i < c; i ++) {
549	xc_gc_deletes_one(xc_php_caches[i] TSRMLS_CC);
550	}
551	}
552
553	if (xc_var_caches) {
554	for (i = 0, c = xc_var_hcache.size; i < c; i ++) {
555	xc_gc_deletes_one(xc_var_caches[i] TSRMLS_CC);
556	}
557	}
558	}
559	/* }}} */
560
561	/* helper functions for user functions */
562	static void xc_fillinfo_unlocked(int cachetype, xc_cache_t cache, zval return_value TSRMLS_DC) /* {{{ */
563	{
564	zval blocks, hits;
565	size_t i;
566	const xc_block_t *b;
567	#ifndef NDEBUG
568	xc_memsize_t avail = 0;
569	#endif
570	xc_mem_t *mem = cache->mem;
571	const xc_mem_handlers_t *handlers = mem->handlers;
572	zend_ulong interval;
573	if (cachetype == XC_TYPE_PHP) {
574	interval = xc_php_ttl ? xc_php_gc_interval : 0;
575	}
576	else {
577	interval = xc_var_gc_interval;
578	}
579
580	add_assoc_long_ex(return_value, ZEND_STRS("slots"), cache->hentry->size);
581	add_assoc_long_ex(return_value, ZEND_STRS("compiling"), cache->compiling);
582	add_assoc_long_ex(return_value, ZEND_STRS("updates"), cache->updates);
583	add_assoc_long_ex(return_value, ZEND_STRS("misses"), cache->updates); /* deprecated */
584	add_assoc_long_ex(return_value, ZEND_STRS("hits"), cache->hits);
585	add_assoc_long_ex(return_value, ZEND_STRS("clogs"), cache->clogs);
586	add_assoc_long_ex(return_value, ZEND_STRS("ooms"), cache->ooms);
587	add_assoc_long_ex(return_value, ZEND_STRS("errors"), cache->errors);
588
589	add_assoc_long_ex(return_value, ZEND_STRS("cached"), cache->entries_count);
590	add_assoc_long_ex(return_value, ZEND_STRS("deleted"), cache->deletes_count);
591	if (interval) {
592	time_t gc = (cache->last_gc_expires + interval) - XG(request_time);
593	add_assoc_long_ex(return_value, ZEND_STRS("gc"), gc > 0 ? gc : 0);
594	}
595	else {
596	add_assoc_null_ex(return_value, ZEND_STRS("gc"));
597	}
598	MAKE_STD_ZVAL(hits);
599	array_init(hits);
600	for (i = 0; i < sizeof(cache->hits_by_hour) / sizeof(cache->hits_by_hour[0]); i ++) {
601	add_next_index_long(hits, (long) cache->hits_by_hour[i]);
602	}
603	add_assoc_zval_ex(return_value, ZEND_STRS("hits_by_hour"), hits);
604
605	MAKE_STD_ZVAL(hits);
606	array_init(hits);
607	for (i = 0; i < sizeof(cache->hits_by_second) / sizeof(cache->hits_by_second[0]); i ++) {
608	add_next_index_long(hits, (long) cache->hits_by_second[i]);
609	}
610	add_assoc_zval_ex(return_value, ZEND_STRS("hits_by_second"), hits);
611
612	MAKE_STD_ZVAL(blocks);
613	array_init(blocks);
614
615	add_assoc_long_ex(return_value, ZEND_STRS("size"), handlers->size(mem));
616	add_assoc_long_ex(return_value, ZEND_STRS("avail"), handlers->avail(mem));
617	add_assoc_bool_ex(return_value, ZEND_STRS("can_readonly"), xc_readonly_protection);
618
619	for (b = handlers->freeblock_first(mem); b; b = handlers->freeblock_next(b)) {
620	zval *bi;
621
622	MAKE_STD_ZVAL(bi);
623	array_init(bi);
624
625	add_assoc_long_ex(bi, ZEND_STRS("size"), handlers->block_size(b));
626	add_assoc_long_ex(bi, ZEND_STRS("offset"), handlers->block_offset(mem, b));
627	add_next_index_zval(blocks, bi);
628	#ifndef NDEBUG
629	avail += handlers->block_size(b);
630	#endif
631	}
632	add_assoc_zval_ex(return_value, ZEND_STRS("free_blocks"), blocks);
633	#ifndef NDEBUG
634	assert(avail == handlers->avail(mem));
635	#endif
636	}
637	/* }}} */
638	static void xc_fillentry_unlocked(xc_entry_type_t type, const xc_entry_t entry, xc_hash_value_t entryslotid, int del, zval list TSRMLS_DC) /* {{{ */
639	{
640	zval* ei;
641	const xc_entry_data_php_t *php;
642
643	ALLOC_INIT_ZVAL(ei);
644	array_init(ei);
645
646	add_assoc_long_ex(ei, ZEND_STRS("hits"), entry->hits);
647	add_assoc_long_ex(ei, ZEND_STRS("ctime"), entry->ctime);
648	add_assoc_long_ex(ei, ZEND_STRS("atime"), entry->atime);
649	add_assoc_long_ex(ei, ZEND_STRS("hvalue"), entryslotid);
650	if (del) {
651	add_assoc_long_ex(ei, ZEND_STRS("dtime"), entry->dtime);
652	}
653	#ifdef IS_UNICODE
654	do {
655	zval *zv;
656	ALLOC_INIT_ZVAL(zv);
657	switch (entry->name_type) {
658	case IS_UNICODE:
659	ZVAL_UNICODEL(zv, entry->name.ustr.val, entry->name.ustr.len, 1);
660	break;
661	case IS_STRING:
662	ZVAL_STRINGL(zv, entry->name.str.val, entry->name.str.len, 1);
663	break;
664	default:
665	assert(0);
666	}
667	zv->type = entry->name_type;
668	add_assoc_zval_ex(ei, ZEND_STRS("name"), zv);
669	} while (0);
670	#else
671	add_assoc_stringl_ex(ei, ZEND_STRS("name"), entry->name.str.val, entry->name.str.len, 1);
672	#endif
673	switch (type) {
674	case XC_TYPE_PHP: {
675	xc_entry_php_t entry_php = (xc_entry_php_t ) entry;
676	php = entry_php->php;
677	add_assoc_long_ex(ei, ZEND_STRS("size"), entry->size + php->size);
678	add_assoc_long_ex(ei, ZEND_STRS("refcount"), entry_php->refcount);
679	add_assoc_long_ex(ei, ZEND_STRS("phprefcount"), php->refcount);
680	add_assoc_long_ex(ei, ZEND_STRS("file_mtime"), entry_php->file_mtime);
681	add_assoc_long_ex(ei, ZEND_STRS("file_size"), entry_php->file_size);
682	add_assoc_long_ex(ei, ZEND_STRS("file_device"), entry_php->file_device);
683	add_assoc_long_ex(ei, ZEND_STRS("file_inode"), entry_php->file_inode);
684
685	#ifdef HAVE_XCACHE_CONSTANT
686	add_assoc_long_ex(ei, ZEND_STRS("constinfo_cnt"), php->constinfo_cnt);
687	#endif
688	add_assoc_long_ex(ei, ZEND_STRS("function_cnt"), php->funcinfo_cnt);
689	add_assoc_long_ex(ei, ZEND_STRS("class_cnt"), php->classinfo_cnt);
690	#ifdef ZEND_ENGINE_2_1
691	add_assoc_long_ex(ei, ZEND_STRS("autoglobal_cnt"),php->autoglobal_cnt);
692	#endif
693	break;
694	}
695
696	case XC_TYPE_VAR:
697	add_assoc_long_ex(ei, ZEND_STRS("refcount"), 0); /* for BC only */
698	add_assoc_long_ex(ei, ZEND_STRS("size"), entry->size);
699	break;
700
701	default:
702	assert(0);
703	}
704
705	add_next_index_zval(list, ei);
706	}
707	/* }}} */
708	static void xc_filllist_unlocked(xc_entry_type_t type, xc_cache_t cache, zval return_value TSRMLS_DC) /* {{{ */
709	{
710	zval* list;
711	int i, c;
712	xc_entry_t *e;
713
714	ALLOC_INIT_ZVAL(list);
715	array_init(list);
716
717	for (i = 0, c = cache->hentry->size; i < c; i ++) {
718	for (e = cache->entries[i]; e; e = e->next) {
719	xc_fillentry_unlocked(type, e, i, 0, list TSRMLS_CC);
720	}
721	}
722	add_assoc_zval(return_value, "cache_list", list);
723
724	ALLOC_INIT_ZVAL(list);
725	array_init(list);
726	for (e = cache->deletes; e; e = e->next) {
727	xc_fillentry_unlocked(XC_TYPE_PHP, e, 0, 1, list TSRMLS_CC);
728	}
729	add_assoc_zval(return_value, "deleted_list", list);
730	}
731	/* }}} */
732
733	static zend_op_array xc_entry_install(xc_entry_php_t entry_php TSRMLS_DC) /* {{{ */
734	{
735	zend_uint i;
736	xc_entry_data_php_t *p = entry_php->php;
737	zend_op_array *old_active_op_array = CG(active_op_array);
738	#ifndef ZEND_ENGINE_2
739	ALLOCA_FLAG(use_heap)
740	/* new ptr which is stored inside CG(class_table) */
741	xc_cest_t new_cest_ptrs = (xc_cest_t )my_do_alloca(sizeof(xc_cest_t) p->classinfo_cnt, use_heap);
742	#endif
743
744	CG(active_op_array) = p->op_array;
745
746	#ifdef HAVE_XCACHE_CONSTANT
747	/* install constant */
748	for (i = 0; i < p->constinfo_cnt; i ++) {
749	xc_constinfo_t *ci = &p->constinfos[i];
750	xc_install_constant(entry_php->entry.name.str.val, &ci->constant,
751	UNISW(0, ci->type), ci->key, ci->key_size, ci->h TSRMLS_CC);
752	}
753	#endif
754
755	/* install function */
756	for (i = 0; i < p->funcinfo_cnt; i ++) {
757	xc_funcinfo_t *fi = &p->funcinfos[i];
758	xc_install_function(entry_php->entry.name.str.val, &fi->func,
759	UNISW(0, fi->type), fi->key, fi->key_size, fi->h TSRMLS_CC);
760	}
761
762	/* install class */
763	for (i = 0; i < p->classinfo_cnt; i ++) {
764	xc_classinfo_t *ci = &p->classinfos[i];
765	#ifndef ZEND_ENGINE_2
766	zend_class_entry *ce = CestToCePtr(ci->cest);
767	/* fix pointer to the be which inside class_table */
768	if (ce->parent) {
769	zend_uint class_idx = (/* class_num */ (int) (long) ce->parent) - 1;
770	assert(class_idx < i);
771	ci->cest.parent = new_cest_ptrs[class_idx];
772	}
773	new_cest_ptrs[i] =
774	#endif
775	#ifdef ZEND_COMPILE_DELAYED_BINDING
776	xc_install_class(entry_php->entry.name.str.val, &ci->cest, -1,
777	UNISW(0, ci->type), ci->key, ci->key_size, ci->h TSRMLS_CC);
778	#else
779	xc_install_class(entry_php->entry.name.str.val, &ci->cest, ci->oplineno,
780	UNISW(0, ci->type), ci->key, ci->key_size, ci->h TSRMLS_CC);
781	#endif
782	}
783
784	#ifdef ZEND_ENGINE_2_1
785	/* trigger auto_globals jit */
786	for (i = 0; i < p->autoglobal_cnt; i ++) {
787	xc_autoglobal_t *aginfo = &p->autoglobals[i];
788	zend_u_is_auto_global(aginfo->type, aginfo->key, aginfo->key_len TSRMLS_CC);
789	}
790	#endif
791	#ifdef XCACHE_ERROR_CACHING
792	/* restore trigger errors */
793	for (i = 0; i < p->compilererror_cnt; i ++) {
794	xc_compilererror_t *error = &p->compilererrors[i];
795	CG(zend_lineno) = error->lineno;
796	zend_error(error->type, "%s", error->error);
797	}
798	CG(zend_lineno) = 0;
799	#endif
800
801	i = 1;
802	#ifndef ZEND_ENGINE_2_2
803	zend_hash_add(&EG(included_files), entry_php->entry.name.str.val, entry_php->entry.name.str.len+1, (void *)&i, sizeof(int), NULL);
804	#endif
805
806	#ifndef ZEND_ENGINE_2
807	my_free_alloca(new_cest_ptrs, use_heap);
808	#endif
809	CG(active_op_array) = old_active_op_array;
810	return p->op_array;
811	}
812	/* }}} */
813
814	static inline void xc_entry_unholds_real(xc_stack_t holds, xc_cache_t caches, int cachecount TSRMLS_DC) / {{{ */
815	{
816	int i;
817	xc_stack_t *s;
818	xc_cache_t *cache;
819	xc_entry_php_t *entry_php;
820
821	for (i = 0; i < cachecount; i ++) {
822	s = &holds[i];
823	TRACE("holded %d items", xc_stack_count(s));
824	if (xc_stack_count(s)) {
825	cache = caches[i];
826	ENTER_LOCK(cache) {
827	while (xc_stack_count(s)) {
828	entry_php = (xc_entry_php_t *) xc_stack_pop(s);
829	TRACE("unhold %d:%s", entry_php->file_inode, entry_php->entry.name.str.val);
830	assert(entry_php->refcount > 0);
831	--entry_php->refcount;
832	}
833	} LEAVE_LOCK(cache);
834	}
835	}
836	}
837	/* }}} */
838	static void xc_entry_unholds(TSRMLS_D) /* {{{ */
839	{
840	if (xc_php_caches) {
841	xc_entry_unholds_real(XG(php_holds), xc_php_caches, xc_php_hcache.size TSRMLS_CC);
842	}
843
844	if (xc_var_caches) {
845	xc_entry_unholds_real(XG(var_holds), xc_var_caches, xc_var_hcache.size TSRMLS_CC);
846	}
847	}
848	/* }}} */
849
850	#define HASH(i) (i)
851	#define HASH_ZSTR_L(t, s, l) HASH(zend_u_inline_hash_func((t), (s), ((l) + 1) * sizeof(UChar)))
852	#define HASH_STR_S(s, l) HASH(zend_inline_hash_func((char *) (s), (l)))
853	#define HASH_STR_L(s, l) HASH_STR_S((s), (l) + 1)
854	#define HASH_STR(s) HASH_STR_L((s), strlen((s)) + 1)
855	#define HASH_NUM(n) HASH(n)
856	static inline xc_hash_value_t xc_hash_fold(xc_hash_value_t hvalue, const xc_hash_t hasher) / {{{ fold hash bits as needed */
857	{
858	xc_hash_value_t folded = 0;
859	while (hvalue) {
860	folded ^= (hvalue & hasher->mask);
861	hvalue >>= hasher->bits;
862	}
863	return folded;
864	}
865	/* }}} */
866	static inline xc_hash_value_t xc_entry_hash_name(xc_entry_t entry TSRMLS_DC) / {{{ */
867	{
868	return UNISW(NOTHING, UG(unicode) ? HASH_ZSTR_L(entry->name_type, entry->name.uni.val, entry->name.uni.len) :)
869	HASH_STR_L(entry->name.str.val, entry->name.str.len);
870	}
871	/* }}} */
872	#define xc_entry_hash_var xc_entry_hash_name
873	static void xc_entry_free_key_php(xc_entry_php_t entry_php TSRMLS_DC) / {{{ */
874	{
875	#define X_FREE(var) do {\
876	if (entry_php->var) { \
877	efree(entry_php->var); \
878	} \
879	} while (0)
880	X_FREE(dirpath);
881	#ifdef IS_UNICODE
882	X_FREE(ufilepath);
883	X_FREE(udirpath);
884	#endif
885
886	#undef X_FREE
887	}
888	/* }}} */
889	static char xc_expand_url(const char filepath, char real_path TSRMLS_DC) / {{{ */
890	{
891	if (strstr(filepath, "://") != NULL) {
892	size_t filepath_len = strlen(filepath);
893	size_t copy_len = filepath_len > MAXPATHLEN - 1 ? MAXPATHLEN - 1 : filepath_len;
894	memcpy(real_path, filepath, filepath_len);
895	real_path[copy_len] = '\0';
896	return real_path;
897	}
898	return expand_filepath(filepath, real_path TSRMLS_CC);
899	}
900	/* }}} */
901
902	#define XC_RESOLVE_PATH_CHECKER(name) zend_bool name(const char filepath, size_t filepath_len, void data TSRMLS_DC)
903	typedef XC_RESOLVE_PATH_CHECKER((*xc_resolve_path_checker_func_t));
904	static zend_bool xc_resolve_path(const char filepath, char path_buffer, xc_resolve_path_checker_func_t checker_func, void data TSRMLS_DC) / {{{ */
905	{
906	char paths, path;
907	char *tokbuf;
908	size_t path_buffer_len;
909	int size;
910	char tokens[] = { DEFAULT_DIR_SEPARATOR, '\0' };
911	int ret;
912	ALLOCA_FLAG(use_heap)
913
914	#if 0
915	if ((*filepath == '.' &&
916	(IS_SLASH(filepath[1]) \|\|
917	((filepath[1] == '.') && IS_SLASH(filepath[2])))) \|\|
918	IS_ABSOLUTE_PATH(filepath, strlen(filepath)) \|\|
919	!path \|\|
920	!*path) {
921
922	if (checker_func(path_buffer, path_buffer_len, data TSRMLS_CC)) {
923	ret = 1;
924	}
925	else {
926	ret = FAILURE;
927	}
928	goto finish;
929	}
930	#endif
931
932	size = strlen(PG(include_path)) + 1;
933	paths = (char *)my_do_alloca(size, use_heap);
934	memcpy(paths, PG(include_path), size);
935
936	for (path = php_strtok_r(paths, tokens, &tokbuf); path; path = php_strtok_r(NULL, tokens, &tokbuf)) {
937	path_buffer_len = snprintf(path_buffer, MAXPATHLEN, "%s/%s", path, filepath);
938	if (path_buffer_len < MAXPATHLEN - 1) {
939	if (checker_func(path_buffer, path_buffer_len, data TSRMLS_CC)) {
940	ret = 1;
941	goto finish;
942	}
943	}
944	}
945
946	/* fall back to current directory */
947	if (zend_is_executing(TSRMLS_C)) {
948	const char *executed_filename = zend_get_executed_filename(TSRMLS_C);
949	if (executed_filename && executed_filename[0] && executed_filename[0] != '[') {
950	size_t filename_len = strlen(filepath);
951	size_t dirname_len;
952
953	for (dirname_len = strlen(executed_filename) - 1; dirname_len > 0; --dirname_len) {
954	if (IS_SLASH(executed_filename[dirname_len])) {
955	if (dirname_len + filename_len < MAXPATHLEN - 1) {
956	++dirname_len; /* include tailing slash */
957	memcpy(path_buffer, executed_filename, dirname_len);
958	memcpy(path_buffer + dirname_len, filepath, filename_len);
959	path_buffer_len = dirname_len + filename_len;
960	path_buffer[path_buffer_len] = '\0';
961	if (checker_func(path_buffer, path_buffer_len, data TSRMLS_CC)) {
962	ret = 1;
963	goto finish;
964	}
965	}
966	break;
967	}
968	}
969	}
970	}
971
972	ret = 0;
973
974	finish:
975	my_free_alloca(paths, use_heap);
976
977	return ret;
978	}
979	/* }}} */
980	#ifndef ZEND_ENGINE_2_3
981	static XC_RESOLVE_PATH_CHECKER(xc_stat_file) /* {{{ */
982	{
983	return VCWD_STAT(filepath, (struct stat *) data) == 0 ? 1 : 0;
984	}
985	/* }}} */
986	static int xc_resolve_path_stat(const char filepath, char path_buffer, struct stat pbuf TSRMLS_DC) / {{{ */
987	{
988	return xc_resolve_path(filepath, path_buffer, xc_stat_file, (void *) pbuf TSRMLS_CC)
989	? SUCCESS
990	: FAILURE;
991	}
992	/* }}} */
993	#endif
994	typedef struct xc_compiler_t { /* {{{ */
995	/* XCache cached compile state */
996	const char *filename;
997	size_t filename_len;
998	const char *opened_path;
999	char opened_path_buffer[MAXPATHLEN];
1000
1001	xc_entry_hash_t entry_hash;
1002	xc_entry_php_t new_entry;
1003	xc_entry_data_php_t new_php;
1004	} xc_compiler_t;
1005	/* }}} */
1006	typedef struct xc_entry_resolve_path_data_t { /* {{{ */
1007	xc_compiler_t *compiler;
1008	xc_entry_php_t **stored_entry;
1009	} xc_entry_resolve_path_data_t;
1010	/* }}} */
1011	static XC_RESOLVE_PATH_CHECKER(xc_entry_resolve_path_func_unlocked) /* {{{ */
1012	{
1013	xc_entry_resolve_path_data_t entry_resolve_path_data = (xc_entry_resolve_path_data_t ) data;
1014	xc_compiler_t *compiler = entry_resolve_path_data->compiler;
1015
1016	compiler->new_entry.entry.name.str.val = xc_expand_url(filepath, compiler->opened_path_buffer TSRMLS_CC);
1017	compiler->new_entry.entry.name.str.len = strlen(compiler->new_entry.entry.name.str.val);
1018
1019	entry_resolve_path_data->stored_entry = (xc_entry_php_t ) xc_entry_find_unlocked(
1020	XC_TYPE_PHP
1021	, xc_php_caches[compiler->entry_hash.cacheid]
1022	, compiler->entry_hash.entryslotid
1023	, (xc_entry_t *) &compiler->new_entry
1024	TSRMLS_CC);
1025
1026	return *entry_resolve_path_data->stored_entry ? 1 : 0;
1027	}
1028	/* }}} */
1029	static int xc_entry_resolve_path_unlocked(xc_compiler_t compiler, const char filepath, xc_entry_php_t *stored_entry TSRMLS_DC) / {{{ */
1030	{
1031	char path_buffer[MAXPATHLEN];
1032	xc_entry_resolve_path_data_t entry_resolve_path_data;
1033	entry_resolve_path_data.compiler = compiler;
1034	entry_resolve_path_data.stored_entry = stored_entry;
1035
1036	return xc_resolve_path(filepath, path_buffer, xc_entry_resolve_path_func_unlocked, (void *) &entry_resolve_path_data TSRMLS_CC)
1037	? SUCCESS
1038	: FAILURE;
1039	}
1040	/* }}} */
1041	static int xc_entry_php_quick_resolve_opened_path(xc_compiler_t compiler, struct stat statbuf TSRMLS_DC) /* {{{ */
1042	{
1043	if (strcmp(SG(request_info).path_translated, compiler->filename) == 0) {
1044	/* sapi has already done this stat() for us */
1045	if (statbuf) {
1046	struct stat *sapi_stat = sapi_get_stat(TSRMLS_C);
1047	if (!sapi_stat) {
1048	goto giveupsapistat;
1049	}
1050	statbuf = sapi_stat;
1051	}
1052
1053	compiler->opened_path = xc_expand_url(compiler->filename, compiler->opened_path_buffer TSRMLS_CC);
1054	return SUCCESS;
1055	}
1056	giveupsapistat:
1057
1058	/* absolute path */
1059	if (IS_ABSOLUTE_PATH(compiler->filename, strlen(compiler->filename))) {
1060	if (statbuf && VCWD_STAT(compiler->filename, statbuf) != 0) {
1061	return FAILURE;
1062	}
1063	compiler->opened_path = xc_expand_url(compiler->filename, compiler->opened_path_buffer TSRMLS_CC);
1064	return SUCCESS;
1065	}
1066
1067	/* relative path */
1068	if (*compiler->filename == '.' && (IS_SLASH(compiler->filename[1]) \|\| compiler->filename[1] == '.')) {
1069	const char *ptr = compiler->filename + 1;
1070	if (*ptr == '.') {
1071	while (*(++ptr) == '.');
1072	if (!IS_SLASH(*ptr)) {
1073	return FAILURE;
1074	}
1075	}
1076
1077	if (statbuf && VCWD_STAT(compiler->filename, statbuf) != 0) {
1078	return FAILURE;
1079	}
1080
1081	compiler->opened_path = xc_expand_url(compiler->filename, compiler->opened_path_buffer TSRMLS_CC);
1082	return SUCCESS;
1083	}
1084
1085	return FAILURE;
1086	}
1087	/* }}} */
1088	static int xc_entry_php_resolve_opened_path(xc_compiler_t compiler, struct stat statbuf TSRMLS_DC) /* {{{ */
1089	{
1090	if (xc_entry_php_quick_resolve_opened_path(compiler, statbuf TSRMLS_CC) == SUCCESS) {
1091	/* opened_path resolved */
1092	return SUCCESS;
1093	}
1094	/* fall back to real stat call */
1095	else {
1096	#ifdef ZEND_ENGINE_2_3
1097	char *opened_path = php_resolve_path(compiler->filename, compiler->filename_len, PG(include_path) TSRMLS_CC);
1098	if (opened_path) {
1099	strcpy(compiler->opened_path_buffer, opened_path);
1100	efree(opened_path);
1101	compiler->opened_path = compiler->opened_path_buffer;
1102	if (!statbuf \|\| VCWD_STAT(compiler->opened_path, statbuf) == 0) {
1103	return SUCCESS;
1104	}
1105	}
1106	#else
1107	char path_buffer[MAXPATHLEN];
1108	if (xc_resolve_path_stat(compiler->filename, path_buffer, statbuf TSRMLS_CC) == SUCCESS) {
1109	compiler->opened_path = xc_expand_url(path_buffer, compiler->opened_path_buffer TSRMLS_CC);
1110	return SUCCESS;
1111	}
1112	#endif
1113	}
1114	return FAILURE;
1115	}
1116	/* }}} */
1117	static int xc_entry_php_init_key(xc_compiler_t compiler TSRMLS_DC) / {{{ */
1118	{
1119	if (XG(stat)) {
1120	struct stat buf;
1121	time_t delta;
1122
1123	if (compiler->opened_path) {
1124	if (VCWD_STAT(compiler->opened_path, &buf) != 0) {
1125	return FAILURE;
1126	}
1127	}
1128	else {
1129	if (xc_entry_php_resolve_opened_path(compiler, &buf TSRMLS_CC) != SUCCESS) {
1130	return FAILURE;
1131	}
1132	}
1133
1134	delta = XG(request_time) - buf.st_mtime;
1135	if (abs(delta) < 2 && !xc_test) {
1136	return FAILURE;
1137	}
1138
1139	compiler->new_entry.file_mtime = buf.st_mtime;
1140	compiler->new_entry.file_size = buf.st_size;
1141	compiler->new_entry.file_device = buf.st_dev;
1142	compiler->new_entry.file_inode = buf.st_ino;
1143	}
1144	else {
1145	xc_entry_php_quick_resolve_opened_path(compiler, NULL TSRMLS_CC);
1146
1147	compiler->new_entry.file_mtime = 0;
1148	compiler->new_entry.file_size = 0;
1149	compiler->new_entry.file_device = 0;
1150	compiler->new_entry.file_inode = 0;
1151	}
1152
1153	{
1154	xc_hash_value_t basename_hash_value;
1155	if (xc_php_hcache.size > 1
1156	\|\| !compiler->new_entry.file_inode) {
1157	const char *filename_end = compiler->filename + compiler->filename_len;
1158	const char *basename_begin = filename_end - 1;
1159
1160	/* scan till out of basename part */
1161	while (basename_begin >= compiler->filename && !IS_SLASH(*basename_begin)) {
1162	--basename_begin;
1163	}
1164	/* get back to basename_begin */
1165	++basename_begin;
1166
1167	basename_hash_value = HASH_STR_L(basename_begin, filename_end - basename_begin);
1168	}
1169
1170	compiler->entry_hash.cacheid = xc_php_hcache.size > 1 ? xc_hash_fold(basename_hash_value, &xc_php_hcache) : 0;
1171	compiler->entry_hash.entryslotid = xc_hash_fold(
1172	compiler->new_entry.file_inode
1173	? (xc_hash_value_t) HASH(compiler->new_entry.file_device + compiler->new_entry.file_inode)
1174	: basename_hash_value
1175	, &xc_php_hentry);
1176	}
1177
1178	compiler->new_entry.filepath = NULL;
1179	compiler->new_entry.dirpath = NULL;
1180	#ifdef IS_UNICODE
1181	compiler->new_entry.ufilepath = NULL;
1182	compiler->new_entry.udirpath = NULL;
1183	#endif
1184
1185	return SUCCESS;
1186	}
1187	/* }}} */
1188	static inline xc_hash_value_t xc_php_hash_md5(xc_entry_data_php_t php TSRMLS_DC) / {{{ */
1189	{
1190	return HASH_STR_S(php->md5.digest, sizeof(php->md5.digest));
1191	}
1192	/* }}} */
1193	static int xc_entry_data_php_init_md5(xc_cache_t cache, xc_compiler_t compiler TSRMLS_DC) /* {{{ */
1194	{
1195	unsigned char buf[1024];
1196	PHP_MD5_CTX context;
1197	int n;
1198	php_stream *stream;
1199	ulong old_rsid = EG(regular_list).nNextFreeElement;
1200
1201	stream = php_stream_open_wrapper((char *) compiler->filename, "rb", USE_PATH \| REPORT_ERRORS \| ENFORCE_SAFE_MODE \| STREAM_DISABLE_OPEN_BASEDIR, NULL);
1202	if (!stream) {
1203	return FAILURE;
1204	}
1205
1206	PHP_MD5Init(&context);
1207	while ((n = php_stream_read(stream, (char *) buf, sizeof(buf))) > 0) {
1208	PHP_MD5Update(&context, buf, n);
1209	}
1210	PHP_MD5Final((unsigned char *) compiler->new_php.md5.digest, &context);
1211
1212	php_stream_close(stream);
1213	if (EG(regular_list).nNextFreeElement == old_rsid + 1) {
1214	EG(regular_list).nNextFreeElement = old_rsid;
1215	}
1216
1217	if (n < 0) {
1218	return FAILURE;
1219	}
1220
1221	compiler->new_php.hvalue = (xc_php_hash_md5(&compiler->new_php TSRMLS_CC) & cache->hphp->mask);
1222	#ifdef XCACHE_DEBUG
1223	{
1224	char md5str[33];
1225	make_digest(md5str, (unsigned char *) compiler->new_php.md5.digest);
1226	TRACE("md5 %s", md5str);
1227	}
1228	#endif
1229
1230	return SUCCESS;
1231	}
1232	/* }}} */
1233	static void xc_entry_php_init(xc_entry_php_t entry_php, const char filepath TSRMLS_DC) /* {{{*/
1234	{
1235	entry_php->filepath = ZEND_24((char *), NOTHING) filepath;
1236	entry_php->filepath_len = strlen(entry_php->filepath);
1237	entry_php->dirpath = estrndup(entry_php->filepath, entry_php->filepath_len);
1238	entry_php->dirpath_len = zend_dirname(entry_php->dirpath, entry_php->filepath_len);
1239	#ifdef IS_UNICODE
1240	zend_string_to_unicode(ZEND_U_CONVERTER(UG(runtime_encoding_conv)), &entry_php->ufilepath, &entry_php->ufilepath_len, entry_php->filepath, entry_php->filepath_len TSRMLS_CC);
1241	zend_string_to_unicode(ZEND_U_CONVERTER(UG(runtime_encoding_conv)), &entry_php->udirpath, &entry_php->udirpath_len, entry_php->dirpath, entry_php->dirpath_len TSRMLS_CC);
1242	#endif
1243	}
1244	/* }}} */
1245	#ifndef ZEND_COMPILE_DELAYED_BINDING
1246	static void xc_cache_early_binding_class_cb(zend_op opline, int oplineno, void data TSRMLS_DC) /* {{{ */
1247	{
1248	char *class_name;
1249	zend_uint i;
1250	int class_len;
1251	xc_cest_t cest;
1252	xc_entry_data_php_t php = (xc_entry_data_php_t ) data;
1253
1254	class_name = Z_OP_CONSTANT(opline->op1).value.str.val;
1255	class_len = Z_OP_CONSTANT(opline->op1).value.str.len;
1256	if (zend_hash_find(CG(class_table), class_name, class_len, (void **) &cest) == FAILURE) {
1257	assert(0);
1258	}
1259	TRACE("got ZEND_DECLARE_INHERITED_CLASS: %s", class_name + 1);
1260	/* let's see which class */
1261	for (i = 0; i < php->classinfo_cnt; i ++) {
1262	if (memcmp(ZSTR_S(php->classinfos[i].key), class_name, class_len) == 0) {
1263	php->classinfos[i].oplineno = oplineno;
1264	php->have_early_binding = 1;
1265	break;
1266	}
1267	}
1268
1269	if (i == php->classinfo_cnt) {
1270	assert(0);
1271	}
1272	}
1273	/* }}} */
1274	#endif
1275
1276	/* {{{ Constant Usage */
1277	#ifdef ZEND_ENGINE_2_4
1278	# define xcache_literal_is_dir 1
1279	# define xcache_literal_is_file 2
1280	#else
1281	# define xcache_op1_is_file 1
1282	# define xcache_op1_is_dir 2
1283	# define xcache_op2_is_file 4
1284	# define xcache_op2_is_dir 8
1285	#endif
1286	typedef struct {
1287	zend_bool filepath_used;
1288	zend_bool dirpath_used;
1289	zend_bool ufilepath_used;
1290	zend_bool udirpath_used;
1291	} xc_const_usage_t;
1292	/* }}} */
1293	static void xc_collect_op_array_info(xc_compiler_t compiler, xc_const_usage_t usage, xc_op_array_info_t op_array_info, zend_op_array op_array TSRMLS_DC) /* {{{ */
1294	{
1295	#ifdef ZEND_ENGINE_2_4
1296	int literalindex;
1297	#else
1298	zend_uint oplinenum;
1299	#endif
1300	xc_vector_t details;
1301
1302	xc_vector_init(xc_op_array_info_detail_t, &details);
1303
1304	#define XCACHE_ANALYZE_LITERAL(type) \
1305	if (zend_binary_strcmp(Z_STRVAL(literal->constant), Z_STRLEN(literal->constant), compiler->new_entry.type##path, compiler->new_entry.type##path_len) == 0) { \
1306	usage->type##path_used = 1; \
1307	literalinfo \|= xcache_##literal##_is_##type; \
1308	}
1309
1310	#define XCACHE_U_ANALYZE_LITERAL(type) \
1311	if (zend_u_##binary_strcmp(Z_USTRVAL(literal->constant), Z_USTRLEN(literal->constant), compiler->new_entry.u##type##path, compiler->new_entry.u##type##path_len) == 0) { \
1312	usage->u##type##path_used = 1; \
1313	literalinfo \|= xcache_##literal##_is_##type; \
1314	}
1315
1316	#define XCACHE_ANALYZE_OP(type, op) \
1317	if (zend_binary_strcmp(Z_STRVAL(Z_OP_CONSTANT(opline->op)), Z_STRLEN(Z_OP_CONSTANT(opline->op)), compiler->new_entry.type##path, compiler->new_entry.type##path_len) == 0) { \
1318	usage->type##path_used = 1; \
1319	oplineinfo \|= xcache_##op##_is_##type; \
1320	}
1321
1322	#define XCACHE_U_ANALYZE_OP(type, op) \
1323	if (zend_u_##binary_strcmp(Z_USTRVAL(Z_OP_CONSTANT(opline->op)), Z_USTRLEN(Z_OP_CONSTANT(opline->op)), compiler->new_entry.u##type##path, compiler->new_entry.u##type##path_len) == 0) { \
1324	usage->u##type##path_used = 1; \
1325	oplineinfo \|= xcache_##op##_is_##type; \
1326	}
1327
1328	#ifdef ZEND_ENGINE_2_4
1329	for (literalindex = 0; literalindex < op_array->last_literal; literalindex++) {
1330	zend_literal *literal = &op_array->literals[literalindex];
1331	zend_uint literalinfo = 0;
1332	if (Z_TYPE(literal->constant) == IS_STRING) {
1333	XCACHE_ANALYZE_LITERAL(file)
1334	else XCACHE_ANALYZE_LITERAL(dir)
1335	}
1336	#ifdef IS_UNICODE
1337	else if (Z_TYPE(literal->constant) == IS_UNICODE) {
1338	XCACHE_U_ANALYZE_LITERAL(file)
1339	else XCACHE_U_ANALYZE_LITERAL(dir)
1340	}
1341	#endif
1342	if (literalinfo) {
1343	xc_op_array_info_detail_t detail;
1344	detail.index = literalindex;
1345	detail.info = literalinfo;
1346	xc_vector_add(xc_op_array_info_detail_t, &details, detail);
1347	}
1348	}
1349
1350	op_array_info->literalinfo_cnt = details.cnt;
1351	op_array_info->literalinfos = xc_vector_detach(xc_op_array_info_detail_t, &details);
1352	#else /* ZEND_ENGINE_2_4 */
1353	for (oplinenum = 0; oplinenum < op_array->last; oplinenum++) {
1354	zend_op *opline = &op_array->opcodes[oplinenum];
1355	zend_uint oplineinfo = 0;
1356	if (Z_OP_TYPE(opline->op1) == IS_CONST) {
1357	if (Z_TYPE(Z_OP_CONSTANT(opline->op1)) == IS_STRING) {
1358	XCACHE_ANALYZE_OP(file, op1)
1359	else XCACHE_ANALYZE_OP(dir, op1)
1360	}
1361	#ifdef IS_UNICODE
1362	else if (Z_TYPE(Z_OP_CONSTANT(opline->op1)) == IS_UNICODE) {
1363	XCACHE_U_ANALYZE_OP(file, op1)
1364	else XCACHE_U_ANALYZE_OP(dir, op1)
1365	}
1366	#endif
1367	}
1368
1369	if (Z_OP_TYPE(opline->op2) == IS_CONST) {
1370	if (Z_TYPE(Z_OP_CONSTANT(opline->op2)) == IS_STRING) {
1371	XCACHE_ANALYZE_OP(file, op2)
1372	else XCACHE_ANALYZE_OP(dir, op2)
1373	}
1374	#ifdef IS_UNICODE
1375	else if (Z_TYPE(Z_OP_CONSTANT(opline->op2)) == IS_UNICODE) {
1376	XCACHE_U_ANALYZE_OP(file, op2)
1377	else XCACHE_U_ANALYZE_OP(dir, op2)
1378	}
1379	#endif
1380	}
1381
1382	if (oplineinfo) {
1383	xc_op_array_info_detail_t detail;
1384	detail.index = oplinenum;
1385	detail.info = oplineinfo;
1386	xc_vector_add(xc_op_array_info_detail_t, &details, detail);
1387	}
1388	}
1389
1390	op_array_info->oplineinfo_cnt = details.cnt;
1391	op_array_info->oplineinfos = xc_vector_detach(xc_op_array_info_detail_t, &details);
1392	#endif /* ZEND_ENGINE_2_4 */
1393	xc_vector_free(xc_op_array_info_detail_t, &details);
1394	}
1395	/* }}} */
1396	void xc_fix_op_array_info(const xc_entry_php_t entry_php, const xc_entry_data_php_t php, zend_op_array op_array, int shallow_copy, const xc_op_array_info_t op_array_info TSRMLS_DC) /* {{{ */
1397	{
1398	#ifdef ZEND_ENGINE_2_4
1399	zend_uint literalinfoindex;
1400
1401	for (literalinfoindex = 0; literalinfoindex < op_array_info->literalinfo_cnt; ++literalinfoindex) {
1402	int literalindex = op_array_info->literalinfos[literalinfoindex].index;
1403	int literalinfo = op_array_info->literalinfos[literalinfoindex].info;
1404	zend_literal *literal = &op_array->literals[literalindex];
1405	if ((literalinfo & xcache_literal_is_file)) {
1406	if (!shallow_copy) {
1407	efree(Z_STRVAL(literal->constant));
1408	}
1409	if (Z_TYPE(literal->constant) == IS_STRING) {
1410	assert(entry_php->filepath);
1411	ZVAL_STRINGL(&literal->constant, entry_php->filepath, entry_php->filepath_len, !shallow_copy);
1412	TRACE("restored literal constant: %s", entry_php->filepath);
1413	}
1414	#ifdef IS_UNICODE
1415	else if (Z_TYPE(literal->constant) == IS_UNICODE) {
1416	assert(entry_php->ufilepath);
1417	ZVAL_UNICODEL(&literal->constant, entry_php->ufilepath, entry_php->ufilepath_len, !shallow_copy);
1418	}
1419	#endif
1420	else {
1421	assert(0);
1422	}
1423	}
1424	else if ((literalinfo & xcache_literal_is_dir)) {
1425	if (!shallow_copy) {
1426	efree(Z_STRVAL(literal->constant));
1427	}
1428	if (Z_TYPE(literal->constant) == IS_STRING) {
1429	assert(entry_php->dirpath);
1430	TRACE("restored literal constant: %s", entry_php->dirpath);
1431	ZVAL_STRINGL(&literal->constant, entry_php->dirpath, entry_php->dirpath_len, !shallow_copy);
1432	}
1433	#ifdef IS_UNICODE
1434	else if (Z_TYPE(literal->constant) == IS_UNICODE) {
1435	assert(!entry_php->udirpath);
1436	ZVAL_UNICODEL(&literal->constant, entry_php->udirpath, entry_php->udirpath_len, !shallow_copy);
1437	}
1438	#endif
1439	else {
1440	assert(0);
1441	}
1442	}
1443	}
1444	#else /* ZEND_ENGINE_2_4 */
1445	zend_uint oplinenum;
1446
1447	for (oplinenum = 0; oplinenum < op_array_info->oplineinfo_cnt; ++oplinenum) {
1448	int oplineindex = op_array_info->oplineinfos[oplinenum].index;
1449	int oplineinfo = op_array_info->oplineinfos[oplinenum].info;
1450	zend_op *opline = &op_array->opcodes[oplineindex];
1451	if ((oplineinfo & xcache_op1_is_file)) {
1452	assert(Z_OP_TYPE(opline->op1) == IS_CONST);
1453	if (!shallow_copy) {
1454	efree(Z_STRVAL(Z_OP_CONSTANT(opline->op1)));
1455	}
1456	if (Z_TYPE(Z_OP_CONSTANT(opline->op1)) == IS_STRING) {
1457	assert(entry_php->filepath);
1458	ZVAL_STRINGL(&Z_OP_CONSTANT(opline->op1), entry_php->filepath, entry_php->filepath_len, !shallow_copy);
1459	TRACE("restored op1 constant: %s", entry_php->filepath);
1460	}
1461	#ifdef IS_UNICODE
1462	else if (Z_TYPE(Z_OP_CONSTANT(opline->op1)) == IS_UNICODE) {
1463	assert(entry_php->ufilepath);
1464	ZVAL_UNICODEL(&Z_OP_CONSTANT(opline->op1), entry_php->ufilepath, entry_php->ufilepath_len, !shallow_copy);
1465	}
1466	#endif
1467	else {
1468	assert(0);
1469	}
1470	}
1471	else if ((oplineinfo & xcache_op1_is_dir)) {
1472	assert(Z_OP_TYPE(opline->op1) == IS_CONST);
1473	if (!shallow_copy) {
1474	efree(Z_STRVAL(Z_OP_CONSTANT(opline->op1)));
1475	}
1476	if (Z_TYPE(Z_OP_CONSTANT(opline->op1)) == IS_STRING) {
1477	assert(entry_php->dirpath);
1478	TRACE("restored op1 constant: %s", entry_php->dirpath);
1479	ZVAL_STRINGL(&Z_OP_CONSTANT(opline->op1), entry_php->dirpath, entry_php->dirpath_len, !shallow_copy);
1480	}
1481	#ifdef IS_UNICODE
1482	else if (Z_TYPE(Z_OP_CONSTANT(opline->op1)) == IS_UNICODE) {
1483	assert(!entry_php->udirpath);
1484	ZVAL_UNICODEL(&Z_OP_CONSTANT(opline->op1), entry_php->udirpath, entry_php->udirpath_len, !shallow_copy);
1485	}
1486	#endif
1487	else {
1488	assert(0);
1489	}
1490	}
1491
1492	if ((oplineinfo & xcache_op2_is_file)) {
1493	assert(Z_OP_TYPE(opline->op2) == IS_CONST);
1494	if (!shallow_copy) {
1495	efree(Z_STRVAL(Z_OP_CONSTANT(opline->op2)));
1496	}
1497	if (Z_TYPE(Z_OP_CONSTANT(opline->op2)) == IS_STRING) {
1498	assert(entry_php->filepath);
1499	TRACE("restored op2 constant: %s", entry_php->filepath);
1500	ZVAL_STRINGL(&Z_OP_CONSTANT(opline->op2), entry_php->filepath, entry_php->filepath_len, !shallow_copy);
1501	}
1502	#ifdef IS_UNICODE
1503	else if (Z_TYPE(Z_OP_CONSTANT(opline->op2)) == IS_UNICODE) {
1504	assert(entry_php->ufilepath);
1505	ZVAL_UNICODEL(&Z_OP_CONSTANT(opline->op2), entry_php->ufilepath, entry_php->ufilepath_len, !shallow_copy);
1506	}
1507	#endif
1508	else {
1509	assert(0);
1510	}
1511	}
1512	else if ((oplineinfo & xcache_op2_is_dir)) {
1513	assert(Z_OP_TYPE(opline->op2) == IS_CONST);
1514	if (!shallow_copy) {
1515	efree(Z_STRVAL(Z_OP_CONSTANT(opline->op2)));
1516	}
1517	if (Z_TYPE(Z_OP_CONSTANT(opline->op2)) == IS_STRING) {
1518	assert(entry_php->dirpath);
1519	TRACE("restored op2 constant: %s", entry_php->dirpath);
1520	ZVAL_STRINGL(&Z_OP_CONSTANT(opline->op2), entry_php->dirpath, entry_php->dirpath_len, !shallow_copy);
1521	}
1522	#ifdef IS_UNICODE
1523	else if (Z_TYPE(Z_OP_CONSTANT(opline->op2)) == IS_UNICODE) {
1524	assert(entry_php->udirpath);
1525	ZVAL_UNICODEL(&Z_OP_CONSTANT(opline->op2), entry_php->udirpath, entry_php->udirpath_len, !shallow_copy);
1526	}
1527	#endif
1528	else {
1529	assert(0);
1530	}
1531	}
1532	}
1533	#endif /* ZEND_ENGINE_2_4 */
1534	}
1535	/* }}} */
1536	static void xc_free_op_array_info(xc_op_array_info_t op_array_info TSRMLS_DC) / {{{ */
1537	{
1538	#ifdef ZEND_ENGINE_2_4
1539	if (op_array_info->literalinfos) {
1540	efree(op_array_info->literalinfos);
1541	}
1542	#else
1543	if (op_array_info->oplineinfos) {
1544	efree(op_array_info->oplineinfos);
1545	}
1546	#endif
1547	}
1548	/* }}} */
1549	static void xc_free_php(xc_entry_data_php_t php TSRMLS_DC) / {{{ */
1550	{
1551	zend_uint i;
1552	if (php->classinfos) {
1553	for (i = 0; i < php->classinfo_cnt; i ++) {
1554	xc_classinfo_t *classinfo = &php->classinfos[i];
1555	zend_uint j;
1556
1557	for (j = 0; j < classinfo->methodinfo_cnt; j ++) {
1558	xc_free_op_array_info(&classinfo->methodinfos[j] TSRMLS_CC);
1559	}
1560
1561	if (classinfo->methodinfos) {
1562	efree(classinfo->methodinfos);
1563	}
1564	}
1565	}
1566	if (php->funcinfos) {
1567	for (i = 0; i < php->funcinfo_cnt; i ++) {
1568	xc_free_op_array_info(&php->funcinfos[i].op_array_info TSRMLS_CC);
1569	}
1570	}
1571	xc_free_op_array_info(&php->op_array_info TSRMLS_CC);
1572
1573	#define X_FREE(var) do {\
1574	if (php->var) { \
1575	efree(php->var); \
1576	} \
1577	} while (0)
1578
1579	#ifdef ZEND_ENGINE_2_1
1580	X_FREE(autoglobals);
1581	#endif
1582	X_FREE(classinfos);
1583	X_FREE(funcinfos);
1584	#ifdef HAVE_XCACHE_CONSTANT
1585	X_FREE(constinfos);
1586	#endif
1587	#undef X_FREE
1588	}
1589	/* }}} */
1590	static void xc_compile_php(xc_compiler_t compiler, zend_file_handle h, int type TSRMLS_DC) /* {{{ */
1591	{
1592	zend_uint old_constinfo_cnt, old_funcinfo_cnt, old_classinfo_cnt;
1593	zend_bool catched = 0;
1594
1595	/* {{{ compile */
1596	TRACE("compiling %s", h->opened_path ? h->opened_path : h->filename);
1597
1598	old_classinfo_cnt = zend_hash_num_elements(CG(class_table));
1599	old_funcinfo_cnt = zend_hash_num_elements(CG(function_table));
1600	old_constinfo_cnt = zend_hash_num_elements(EG(zend_constants));
1601
1602	zend_try {
1603	compiler->new_php.op_array = old_compile_file(h, type TSRMLS_CC);
1604	} zend_catch {
1605	catched = 1;
1606	} zend_end_try();
1607
1608	if (catched) {
1609	goto err_bailout;
1610	}
1611
1612	if (compiler->new_php.op_array == NULL) {
1613	goto err_op_array;
1614	}
1615
1616	if (!XG(initial_compile_file_called)) {
1617	TRACE("%s", "!initial_compile_file_called, give up");
1618	return;
1619	}
1620
1621	/* }}} */
1622	/* {{{ prepare */
1623	zend_restore_compiled_filename(h->opened_path ? h->opened_path : (char *) h->filename TSRMLS_CC);
1624
1625	#ifdef HAVE_XCACHE_CONSTANT
1626	compiler->new_php.constinfo_cnt = zend_hash_num_elements(EG(zend_constants)) - old_constinfo_cnt;
1627	#endif
1628	compiler->new_php.funcinfo_cnt = zend_hash_num_elements(CG(function_table)) - old_funcinfo_cnt;
1629	compiler->new_php.classinfo_cnt = zend_hash_num_elements(CG(class_table)) - old_classinfo_cnt;
1630	#ifdef ZEND_ENGINE_2_1
1631	/* {{{ count new_php.autoglobal_cnt */ {
1632	Bucket *b;
1633
1634	compiler->new_php.autoglobal_cnt = 0;
1635	for (b = CG(auto_globals)->pListHead; b != NULL; b = b->pListNext) {
1636	zend_auto_global auto_global = (zend_auto_global ) b->pData;
1637	/* check if actived */
1638	if (auto_global->auto_global_callback && !auto_global->armed) {
1639	compiler->new_php.autoglobal_cnt ++;
1640	}
1641	}
1642	}
1643	/* }}} */
1644	#endif
1645
1646	#define X_ALLOC_N(var, cnt) do { \
1647	if (compiler->new_php.cnt) { \
1648	ECALLOC_N(compiler->new_php.var, compiler->new_php.cnt); \
1649	if (!compiler->new_php.var) { \
1650	goto err_alloc; \
1651	} \
1652	} \
1653	else { \
1654	compiler->new_php.var = NULL; \
1655	} \
1656	} while (0)
1657
1658	#ifdef HAVE_XCACHE_CONSTANT
1659	X_ALLOC_N(constinfos, constinfo_cnt);
1660	#endif
1661	X_ALLOC_N(funcinfos, funcinfo_cnt);
1662	X_ALLOC_N(classinfos, classinfo_cnt);
1663	#ifdef ZEND_ENGINE_2_1
1664	X_ALLOC_N(autoglobals, autoglobal_cnt);
1665	#endif
1666	#undef X_ALLOC
1667	/* }}} */
1668
1669	/* {{{ shallow copy, pointers only */ {
1670	Bucket *b;
1671	zend_uint i;
1672	zend_uint j;
1673
1674	#define COPY_H(vartype, var, cnt, name, datatype) do { \
1675	for (i = 0, j = 0; b; i ++, b = b->pListNext) { \
1676	vartype *data = &compiler->new_php.var[j]; \
1677	\
1678	if (i < old_##cnt) { \
1679	continue; \
1680	} \
1681	j ++; \
1682	\
1683	assert(i < old_##cnt + compiler->new_php.cnt); \
1684	assert(b->pData); \
1685	memcpy(&data->name, b->pData, sizeof(datatype)); \
1686	UNISW(NOTHING, data->type = b->key.type;) \
1687	if (UNISW(1, b->key.type == IS_STRING)) { \
1688	ZSTR_S(data->key) = BUCKET_KEY_S(b); \
1689	} \
1690	else { \
1691	ZSTR_U(data->key) = BUCKET_KEY_U(b); \
1692	} \
1693	data->key_size = b->nKeyLength; \
1694	data->h = b->h; \
1695	} \
1696	} while(0)
1697
1698	#ifdef HAVE_XCACHE_CONSTANT
1699	b = EG(zend_constants)->pListHead; COPY_H(xc_constinfo_t, constinfos, constinfo_cnt, constant, zend_constant);
1700	#endif
1701	b = CG(function_table)->pListHead; COPY_H(xc_funcinfo_t, funcinfos, funcinfo_cnt, func, zend_function);
1702	b = CG(class_table)->pListHead; COPY_H(xc_classinfo_t, classinfos, classinfo_cnt, cest, xc_cest_t);
1703
1704	#undef COPY_H
1705
1706	/* for ZE1, cest need to be fixed inside store */
1707
1708	#ifdef ZEND_ENGINE_2_1
1709	/* scan for acatived auto globals */
1710	i = 0;
1711	for (b = CG(auto_globals)->pListHead; b != NULL; b = b->pListNext) {
1712	zend_auto_global auto_global = (zend_auto_global ) b->pData;
1713	/* check if actived */
1714	if (auto_global->auto_global_callback && !auto_global->armed) {
1715	xc_autoglobal_t *data = &compiler->new_php.autoglobals[i];
1716
1717	assert(i < compiler->new_php.autoglobal_cnt);
1718	i ++;
1719	UNISW(NOTHING, data->type = b->key.type;)
1720	if (UNISW(1, b->key.type == IS_STRING)) {
1721	ZSTR_S(data->key) = BUCKET_KEY_S(b);
1722	}
1723	else {
1724	ZSTR_U(data->key) = BUCKET_KEY_U(b);
1725	}
1726	data->key_len = b->nKeyLength - 1;
1727	data->h = b->h;
1728	}
1729	}
1730	#endif
1731	}
1732	/* }}} */
1733
1734	/* {{{ collect info for file/dir path */ {
1735	Bucket *b;
1736	xc_const_usage_t const_usage;
1737	unsigned int i;
1738
1739	xc_entry_php_init(&compiler->new_entry, zend_get_compiled_filename(TSRMLS_C) TSRMLS_CC);
1740	memset(&const_usage, 0, sizeof(const_usage));
1741
1742	for (i = 0; i < compiler->new_php.classinfo_cnt; i ++) {
1743	xc_classinfo_t *classinfo = &compiler->new_php.classinfos[i];
1744	zend_class_entry *ce = CestToCePtr(classinfo->cest);
1745	classinfo->methodinfo_cnt = ce->function_table.nTableSize;
1746	if (classinfo->methodinfo_cnt) {
1747	int j;
1748
1749	ECALLOC_N(classinfo->methodinfos, classinfo->methodinfo_cnt);
1750	if (!classinfo->methodinfos) {
1751	goto err_alloc;
1752	}
1753
1754	for (j = 0, b = ce->function_table.pListHead; b; j ++, b = b->pListNext) {
1755	xc_collect_op_array_info(compiler, &const_usage, &classinfo->methodinfos[j], (zend_op_array *) b->pData TSRMLS_CC);
1756	}
1757	}
1758	else {
1759	classinfo->methodinfos = NULL;
1760	}
1761	}
1762
1763	for (i = 0; i < compiler->new_php.funcinfo_cnt; i ++) {
1764	xc_collect_op_array_info(compiler, &const_usage, &compiler->new_php.funcinfos[i].op_array_info, (zend_op_array *) &compiler->new_php.funcinfos[i].func TSRMLS_CC);
1765	}
1766
1767	xc_collect_op_array_info(compiler, &const_usage, &compiler->new_php.op_array_info, compiler->new_php.op_array TSRMLS_CC);
1768
1769	/* file/dir path free unused */
1770	#define X_FREE_UNUSED(var) \
1771	if (!const_usage.var##path_used) { \
1772	efree(compiler->new_entry.var##path); \
1773	compiler->new_entry.var##path = NULL; \
1774	compiler->new_entry.var##path_len = 0; \
1775	}
1776	/* filepath is required to restore op_array->filename, so no free filepath here */
1777	X_FREE_UNUSED(dir)
1778	#ifdef IS_UNICODE
1779	X_FREE_UNUSED(ufile)
1780	X_FREE_UNUSED(udir)
1781	#endif
1782	#undef X_FREE_UNUSED
1783	}
1784	/* }}} */
1785	#ifdef XCACHE_ERROR_CACHING
1786	compiler->new_php.compilererrors = xc_sandbox_compilererrors(TSRMLS_C);
1787	compiler->new_php.compilererror_cnt = xc_sandbox_compilererror_cnt(TSRMLS_C);
1788	#endif
1789	#ifndef ZEND_COMPILE_DELAYED_BINDING
1790	/* {{{ find inherited classes that should be early-binding */
1791	compiler->new_php.have_early_binding = 0;
1792	{
1793	zend_uint i;
1794	for (i = 0; i < compiler->new_php.classinfo_cnt; i ++) {
1795	compiler->new_php.classinfos[i].oplineno = -1;
1796	}
1797	}
1798
1799	xc_undo_pass_two(compiler->new_php.op_array TSRMLS_CC);
1800	xc_foreach_early_binding_class(compiler->new_php.op_array, xc_cache_early_binding_class_cb, (void *) &compiler->new_php TSRMLS_CC);
1801	xc_redo_pass_two(compiler->new_php.op_array TSRMLS_CC);
1802	/* }}} */
1803	#endif
1804
1805	return;
1806
1807	err_alloc:
1808	xc_free_php(&compiler->new_php TSRMLS_CC);
1809
1810	err_bailout:
1811	err_op_array:
1812
1813	if (catched) {
1814	zend_bailout();
1815	}
1816	}
1817	/* }}} */
1818	static zend_op_array xc_compile_restore(xc_entry_php_t stored_entry, xc_entry_data_php_t stored_php TSRMLS_DC) / {{{ */
1819	{
1820	zend_op_array *op_array;
1821	xc_entry_php_t restored_entry;
1822	xc_entry_data_php_t restored_php;
1823	zend_bool catched;
1824	zend_uint i;
1825
1826	/* still needed because in zend_language_scanner.l, require()/include() check file_handle.handle.stream.handle */
1827	i = 1;
1828	zend_hash_add(&EG(included_files), stored_entry->entry.name.str.val, stored_entry->entry.name.str.len + 1, (void *)&i, sizeof(int), NULL);
1829
1830	CG(in_compilation) = 1;
1831	CG(compiled_filename) = stored_entry->entry.name.str.val;
1832	CG(zend_lineno) = 0;
1833	TRACE("restoring %d:%s", stored_entry->file_inode, stored_entry->entry.name.str.val);
1834	xc_processor_restore_xc_entry_php_t(&restored_entry, stored_entry TSRMLS_CC);
1835	xc_processor_restore_xc_entry_data_php_t(stored_entry, &restored_php, stored_php, xc_readonly_protection TSRMLS_CC);
1836	restored_entry.php = &restored_php;
1837	#ifdef SHOW_DPRINT
1838	xc_dprint(&restored_entry, 0 TSRMLS_CC);
1839	#endif
1840
1841	catched = 0;
1842	zend_try {
1843	op_array = xc_entry_install(&restored_entry TSRMLS_CC);
1844	} zend_catch {
1845	catched = 1;
1846	} zend_end_try();
1847
1848	#ifdef HAVE_XCACHE_CONSTANT
1849	if (restored_php.constinfos) {
1850	efree(restored_php.constinfos);
1851	}
1852	#endif
1853	if (restored_php.funcinfos) {
1854	efree(restored_php.funcinfos);
1855	}
1856	if (restored_php.classinfos) {
1857	efree(restored_php.classinfos);
1858	}
1859
1860	if (catched) {
1861	zend_bailout();
1862	}
1863	CG(in_compilation) = 0;
1864	CG(compiled_filename) = NULL;
1865	TRACE("restored %d:%s", stored_entry->file_inode, stored_entry->entry.name.str.val);
1866	return op_array;
1867	}
1868	/* }}} */
1869	typedef struct xc_sandboxed_compiler_t { /* {{{ */
1870	xc_compiler_t *compiler;
1871	/* input */
1872	zend_file_handle *h;
1873	int type;
1874
1875	/* sandbox output */
1876	xc_entry_php_t *stored_entry;
1877	xc_entry_data_php_t *stored_php;
1878	} xc_sandboxed_compiler_t;
1879	/* }}} */
1880
1881	static zend_op_array xc_compile_file_sandboxed(void data TSRMLS_DC) /* {{{ */
1882	{
1883	xc_sandboxed_compiler_t sandboxed_compiler = (xc_sandboxed_compiler_t ) data;
1884	xc_compiler_t *compiler = sandboxed_compiler->compiler;
1885	zend_bool catched = 0;
1886	xc_cache_t *cache = xc_php_caches[compiler->entry_hash.cacheid];
1887	xc_entry_php_t *stored_entry;
1888	xc_entry_data_php_t *stored_php;
1889
1890	/* {{{ compile */
1891	/* make compile inside sandbox */
1892	#ifdef HAVE_XCACHE_CONSTANT
1893	compiler->new_php.constinfos = NULL;
1894	#endif
1895	compiler->new_php.funcinfos = NULL;
1896	compiler->new_php.classinfos = NULL;
1897	#ifdef ZEND_ENGINE_2_1
1898	compiler->new_php.autoglobals = NULL;
1899	#endif
1900	memset(&compiler->new_php.op_array_info, 0, sizeof(compiler->new_php.op_array_info));
1901
1902	XG(initial_compile_file_called) = 0;
1903	zend_try {
1904	compiler->new_php.op_array = NULL;
1905	xc_compile_php(compiler, sandboxed_compiler->h, sandboxed_compiler->type TSRMLS_CC);
1906	} zend_catch {
1907	catched = 1;
1908	} zend_end_try();
1909
1910	if (catched
1911	\|\| !compiler->new_php.op_array /* possible ? */
1912	\|\| !XG(initial_compile_file_called)) {
1913	goto err_aftersandbox;
1914	}
1915
1916	/* }}} */
1917	#ifdef SHOW_DPRINT
1918	compiler->new_entry.php = &compiler->new_php;
1919	xc_dprint(&compiler->new_entry, 0 TSRMLS_CC);
1920	#endif
1921
1922	stored_entry = NULL;
1923	stored_php = NULL;
1924	ENTER_LOCK_EX(cache) { /* {{{ php_store/entry_store */
1925	/* php_store */
1926	stored_php = xc_php_store_unlocked(cache, &compiler->new_php TSRMLS_CC);
1927	if (!stored_php) {
1928	/* error */
1929	break;
1930	}
1931	/* entry_store */
1932	compiler->new_entry.php = stored_php;
1933	stored_entry = xc_entry_php_store_unlocked(cache, compiler->entry_hash.entryslotid, &compiler->new_entry TSRMLS_CC);
1934	if (stored_entry) {
1935	xc_php_addref_unlocked(stored_php);
1936	TRACE(" cached %d:%s, holding", compiler->new_entry.file_inode, stored_entry->entry.name.str.val);
1937	xc_entry_hold_php_unlocked(cache, stored_entry TSRMLS_CC);
1938	}
1939	} LEAVE_LOCK_EX(cache);
1940	/* }}} */
1941	TRACE("%s", stored_entry ? "stored" : "store failed");
1942
1943	if (catched \|\| !stored_php) {
1944	goto err_aftersandbox;
1945	}
1946
1947	cache->compiling = 0;
1948	xc_free_php(&compiler->new_php TSRMLS_CC);
1949
1950	if (stored_entry) {
1951	sandboxed_compiler->stored_entry = stored_entry;
1952	sandboxed_compiler->stored_php = stored_php;
1953	/* discard newly compiled result, restore from stored one */
1954	if (compiler->new_php.op_array) {
1955	#ifdef ZEND_ENGINE_2
1956	destroy_op_array(compiler->new_php.op_array TSRMLS_CC);
1957	#else
1958	destroy_op_array(compiler->new_php.op_array);
1959	#endif
1960	efree(compiler->new_php.op_array);
1961	compiler->new_php.op_array = NULL;
1962	}
1963	return NULL;
1964	}
1965	else {
1966	return compiler->new_php.op_array;
1967	}
1968
1969	err_aftersandbox:
1970	xc_free_php(&compiler->new_php TSRMLS_CC);
1971
1972	cache->compiling = 0;
1973	if (catched) {
1974	cache->errors ++;
1975	zend_bailout();
1976	}
1977	return compiler->new_php.op_array;
1978	} /* }}} */
1979	static zend_op_array xc_compile_file_cached(xc_compiler_t compiler, zend_file_handle h, int type TSRMLS_DC) / {{{ */
1980	{
1981	/*
1982	if (clog) {
1983	return old;
1984	}
1985
1986	if (cached_entry = getby entry_hash) {
1987	php = cached_entry.php;
1988	php = restore(php);
1989	return php;
1990	}
1991	else {
1992	if (!(php = getby md5)) {
1993	if (clog) {
1994	return old;
1995	}
1996
1997	inside_sandbox {
1998	php = compile;
1999	entry = create entries[entry];
2000	}
2001	}
2002
2003	entry.php = php;
2004	return php;
2005	}
2006	*/
2007
2008	xc_entry_php_t *stored_entry;
2009	xc_entry_data_php_t *stored_php;
2010	zend_bool gaveup = 0;
2011	zend_bool catched = 0;
2012	zend_op_array *op_array;
2013	xc_cache_t *cache = xc_php_caches[compiler->entry_hash.cacheid];
2014	xc_sandboxed_compiler_t sandboxed_compiler;
2015
2016	/* stale clogs precheck */
2017	if (XG(request_time) - cache->compiling < 30) {
2018	cache->clogs ++;
2019	return old_compile_file(h, type TSRMLS_CC);
2020	}
2021
2022	/* {{{ entry_lookup/hit/md5_init/php_lookup */
2023	stored_entry = NULL;
2024	stored_php = NULL;
2025
2026	ENTER_LOCK_EX(cache) {
2027	if (!compiler->opened_path && xc_entry_resolve_path_unlocked(compiler, compiler->filename, &stored_entry TSRMLS_CC) == SUCCESS) {
2028	compiler->opened_path = compiler->new_entry.entry.name.str.val;
2029	}
2030	else {
2031	if (!compiler->opened_path && xc_entry_php_resolve_opened_path(compiler, NULL TSRMLS_CC) != SUCCESS) {
2032	gaveup = 1;
2033	break;
2034	}
2035
2036	/* finalize name */
2037	compiler->new_entry.entry.name.str.val = (char *) compiler->opened_path;
2038	compiler->new_entry.entry.name.str.len = strlen(compiler->new_entry.entry.name.str.val);
2039
2040	stored_entry = (xc_entry_php_t ) xc_entry_find_unlocked(XC_TYPE_PHP, cache, compiler->entry_hash.entryslotid, (xc_entry_t ) &compiler->new_entry TSRMLS_CC);
2041	}
2042
2043	if (stored_entry) {
2044	xc_cache_hit_unlocked(cache TSRMLS_CC);
2045
2046	TRACE(" hit %d:%s, holding", compiler->new_entry.file_inode, stored_entry->entry.name.str.val);
2047	xc_entry_hold_php_unlocked(cache, stored_entry TSRMLS_CC);
2048	stored_php = stored_entry->php;
2049	break;
2050	}
2051
2052	TRACE("miss entry %d:%s", compiler->new_entry.file_inode, compiler->new_entry.entry.name.str.val);
2053
2054	if (xc_entry_data_php_init_md5(cache, compiler TSRMLS_CC) != SUCCESS) {
2055	gaveup = 1;
2056	break;
2057	}
2058
2059	stored_php = xc_php_find_unlocked(cache, &compiler->new_php TSRMLS_CC);
2060
2061	if (stored_php) {
2062	compiler->new_entry.php = stored_php;
2063	xc_entry_php_init(&compiler->new_entry, compiler->opened_path TSRMLS_CC);
2064	stored_entry = xc_entry_php_store_unlocked(cache, compiler->entry_hash.entryslotid, &compiler->new_entry TSRMLS_CC);
2065	if (stored_entry) {
2066	xc_php_addref_unlocked(stored_php);
2067	TRACE(" cached %d:%s, holding", compiler->new_entry.file_inode, stored_entry->entry.name.str.val);
2068	xc_entry_hold_php_unlocked(cache, stored_entry TSRMLS_CC);
2069	}
2070	else {
2071	gaveup = 1;
2072	}
2073	break;
2074	}
2075
2076	if (XG(request_time) - cache->compiling < 30) {
2077	TRACE("%s", "miss php, but compiling");
2078	cache->clogs ++;
2079	gaveup = 1;
2080	break;
2081	}
2082
2083	TRACE("%s", "miss php, going to compile");
2084	cache->compiling = XG(request_time);
2085	} LEAVE_LOCK_EX(cache);
2086
2087	if (catched) {
2088	cache->compiling = 0;
2089	zend_bailout();
2090	}
2091
2092	/* found entry */
2093	if (stored_entry && stored_php) {
2094	zend_llist_add_element(&CG(open_files), h);
2095	return xc_compile_restore(stored_entry, stored_php TSRMLS_CC);
2096	}
2097
2098	/* gaveup */
2099	if (gaveup) {
2100	return old_compile_file(h, type TSRMLS_CC);
2101	}
2102	/* }}} */
2103
2104	sandboxed_compiler.compiler = compiler;
2105	sandboxed_compiler.h = h;
2106	sandboxed_compiler.type = type;
2107	sandboxed_compiler.stored_php = NULL;
2108	sandboxed_compiler.stored_entry = NULL;
2109	op_array = xc_sandbox(xc_compile_file_sandboxed, (void *) &sandboxed_compiler, h->opened_path ? h->opened_path : h->filename TSRMLS_CC);
2110	if (sandboxed_compiler.stored_entry) {
2111	return xc_compile_restore(sandboxed_compiler.stored_entry, sandboxed_compiler.stored_php TSRMLS_CC);
2112	}
2113	else {
2114	return op_array;
2115	}
2116	}
2117	/* }}} */
2118	static zend_op_array xc_compile_file(zend_file_handle h, int type TSRMLS_DC) /* {{{ */
2119	{
2120	xc_compiler_t compiler;
2121	zend_op_array *op_array;
2122
2123	assert(xc_initized);
2124
2125	TRACE("xc_compile_file: type=%d name=%s", h->type, h->filename ? h->filename : "NULL");
2126
2127	if (!XG(cacher)
2128	\|\| !h->filename
2129	\|\| !SG(request_info).path_translated
2130	\|\| strstr(h->filename, "://") != NULL
2131	#ifdef ZEND_ENGINE_2_3
2132	/* supported by php_resolve_path */
2133	\|\| (!XG(stat) && strstr(PG(include_path), "://") != NULL)
2134	#else
2135	\|\| strstr(PG(include_path), "://") != NULL
2136	#endif
2137	\|\| xc_cache_disabled()
2138	) {
2139	TRACE("%s", "cacher not enabled");
2140	return old_compile_file(h, type TSRMLS_CC);
2141	}
2142
2143	/* {{{ entry_init_key */
2144	compiler.opened_path = h->opened_path;
2145	compiler.filename = compiler.opened_path ? compiler.opened_path : h->filename;
2146	compiler.filename_len = strlen(compiler.filename);
2147	if (xc_entry_php_init_key(&compiler TSRMLS_CC) != SUCCESS) {
2148	TRACE("failed to init key for %s", compiler.filename);
2149	return old_compile_file(h, type TSRMLS_CC);
2150	}
2151	/* }}} */
2152
2153	op_array = xc_compile_file_cached(&compiler, h, type TSRMLS_CC);
2154
2155	xc_entry_free_key_php(&compiler.new_entry TSRMLS_CC);
2156
2157	return op_array;
2158	}
2159	/* }}} */
2160
2161	/* gdb helper functions, but N/A for coredump */
2162	int xc_is_rw(const void p) / {{{ */
2163	{
2164	xc_shm_t *shm;
2165	size_t i;
2166
2167	if (xc_php_caches) {
2168	for (i = 0; i < xc_php_hcache.size; i ++) {
2169	shm = xc_php_caches[i]->shm;
2170	if (shm->handlers->is_readwrite(shm, p)) {
2171	return 1;
2172	}
2173	}
2174	}
2175
2176	if (xc_var_caches) {
2177	for (i = 0; i < xc_var_hcache.size; i ++) {
2178	shm = xc_var_caches[i]->shm;
2179	if (shm->handlers->is_readwrite(shm, p)) {
2180	return 1;
2181	}
2182	}
2183	}
2184	return 0;
2185	}
2186	/* }}} */
2187	int xc_is_ro(const void p) / {{{ */
2188	{
2189	xc_shm_t *shm;
2190	size_t i;
2191
2192	if (xc_php_caches) {
2193	for (i = 0; i < xc_php_hcache.size; i ++) {
2194	shm = xc_php_caches[i]->shm;
2195	if (shm->handlers->is_readonly(shm, p)) {
2196	return 1;
2197	}
2198	}
2199	}
2200
2201	if (xc_var_caches) {
2202	for (i = 0; i < xc_var_hcache.size; i ++) {
2203	shm = xc_var_caches[i]->shm;
2204	if (shm->handlers->is_readonly(shm, p)) {
2205	return 1;
2206	}
2207	}
2208	}
2209	return 0;
2210	}
2211	/* }}} */
2212	int xc_is_shm(const void p) / {{{ */
2213	{
2214	return xc_is_ro(p) \|\| xc_is_rw(p);
2215	}
2216	/* }}} */
2217
2218	void xc_gc_add_op_array(xc_gc_op_array_t gc_op_array TSRMLS_DC) / {{{ */
2219	{
2220	zend_llist_add_element(&XG(gc_op_arrays), (void *) gc_op_array);
2221	}
2222	/* }}} */
2223	static void xc_gc_op_array(void pDest) / {{{ */
2224	{
2225	xc_gc_op_array_t op_array = (xc_gc_op_array_t ) pDest;
2226	zend_uint i;
2227	#ifdef ZEND_ENGINE_2
2228	if (op_array->arg_info) {
2229	for (i = 0; i < op_array->num_args; i++) {
2230	efree((char *) ZSTR_V(op_array->arg_info[i].name));
2231	if (ZSTR_V(op_array->arg_info[i].class_name)) {
2232	efree((char *) ZSTR_V(op_array->arg_info[i].class_name));
2233	}
2234	}
2235	efree(op_array->arg_info);
2236	}
2237	#endif
2238	if (op_array->opcodes) {
2239	efree(op_array->opcodes);
2240	}
2241	}
2242	/* }}} */
2243
2244	/* module helper function */
2245	static int xc_init_constant(int module_number TSRMLS_DC) /* {{{ */
2246	{
2247	zend_register_long_constant(ZEND_STRS("XC_TYPE_PHP"), XC_TYPE_PHP, CONST_CS \| CONST_PERSISTENT, module_number TSRMLS_CC);
2248	zend_register_long_constant(ZEND_STRS("XC_TYPE_VAR"), XC_TYPE_VAR, CONST_CS \| CONST_PERSISTENT, module_number TSRMLS_CC);
2249	return 0;
2250	}
2251	/* }}} */
2252	static xc_shm_t xc_cache_destroy(xc_cache_t caches, xc_hash_t hcache) /* {{{ */
2253	{
2254	size_t i;
2255	xc_cache_t *cache;
2256	xc_shm_t *shm = NULL;
2257
2258	if (!caches) {
2259	return shm;
2260	}
2261
2262	for (i = 0; i < hcache->size; i ++) {
2263	cache = caches[i];
2264	if (cache) {
2265	if (cache->lck) {
2266	xc_lock_destroy(cache->lck);
2267	}
2268	/* do NOT free
2269	if (cache->entries) {
2270	cache->mem->handlers->free(cache->mem, cache->entries);
2271	}
2272	cache->mem->handlers->free(cache->mem, cache);
2273	*/
2274	shm = cache->shm;
2275	cache->shm->handlers->memdestroy(cache->mem);
2276	}
2277	}
2278	free(caches);
2279	return shm;
2280	}
2281	/* }}} */
2282	static xc_cache_t *xc_cache_init(xc_shm_t shm, xc_hash_t hcache, xc_hash_t hentry, xc_hash_t hphp, xc_shmsize_t shmsize) / {{{ */
2283	{
2284	xc_cache_t *caches = NULL, cache;
2285	xc_mem_t *mem;
2286	time_t now = time(NULL);
2287	size_t i;
2288	xc_memsize_t memsize;
2289
2290	memsize = shmsize / hcache->size;
2291
2292	/* Don't let it break out of mem after ALIGNed
2293	* This is important for
2294	* Simply loop until it fit our need
2295	*/
2296	while (ALIGN(memsize) * hcache->size > shmsize && ALIGN(memsize) != memsize) {
2297	if (memsize < ALIGN(1)) {
2298	CHECK(NULL, "cache too small");
2299	}
2300	memsize --;
2301	}
2302
2303	CHECK(caches = calloc(hcache->size, sizeof(xc_cache_t *)), "caches OOM");
2304
2305	for (i = 0; i < hcache->size; i ++) {
2306	CHECK(mem = shm->handlers->meminit(shm, memsize), "Failed init memory allocator");
2307	CHECK(cache = mem->handlers->calloc(mem, 1, sizeof(xc_cache_t)), "cache OOM");
2308	CHECK(cache->entries = mem->handlers->calloc(mem, hentry->size, sizeof(xc_entry_t*)), "entries OOM");
2309	if (hphp) {
2310	CHECK(cache->phps= mem->handlers->calloc(mem, hphp->size, sizeof(xc_entry_data_php_t*)), "phps OOM");
2311	}
2312	CHECK(cache->lck = xc_lock_init(NULL), "can't create lock");
2313
2314	cache->hcache = hcache;
2315	cache->hentry = hentry;
2316	cache->hphp = hphp;
2317	cache->shm = shm;
2318	cache->mem = mem;
2319	cache->cacheid = i;
2320	cache->last_gc_deletes = now;
2321	cache->last_gc_expires = now;
2322	caches[i] = cache;
2323	}
2324	return caches;
2325
2326	err:
2327	if (caches) {
2328	xc_cache_destroy(caches, hcache);
2329	}
2330	return NULL;
2331	}
2332	/* }}} */
2333	static void xc_destroy() /* {{{ */
2334	{
2335	xc_shm_t *shm = NULL;
2336	if (old_compile_file && zend_compile_file == xc_compile_file) {
2337	zend_compile_file = old_compile_file;
2338	old_compile_file = NULL;
2339	}
2340
2341	if (xc_php_caches) {
2342	shm = xc_cache_destroy(xc_php_caches, &xc_php_hcache);
2343	xc_php_caches = NULL;
2344	}
2345
2346	if (xc_var_caches) {
2347	shm = xc_cache_destroy(xc_var_caches, &xc_var_hcache);
2348	xc_var_caches = NULL;
2349	}
2350
2351	if (shm) {
2352	xc_shm_destroy(shm);
2353	}
2354
2355	xc_initized = 0;
2356	}
2357	/* }}} */
2358	static int xc_init() /* {{{ */
2359	{
2360	xc_shm_t *shm = NULL;
2361	xc_shmsize_t shmsize = ALIGN(xc_php_size) + ALIGN(xc_var_size);
2362
2363	xc_php_caches = xc_var_caches = NULL;
2364
2365	if (shmsize < (size_t) xc_php_size \|\| shmsize < (size_t) xc_var_size) {
2366	zend_error(E_ERROR, "XCache: neither xcache.size nor xcache.var_size can be negative");
2367	goto err;
2368	}
2369
2370	if (xc_php_size \|\| xc_var_size) {
2371	CHECK(shm = xc_shm_init(xc_shm_scheme, shmsize, xc_readonly_protection, xc_mmap_path, NULL), "Cannot create shm");
2372	if (!shm->handlers->can_readonly(shm)) {
2373	xc_readonly_protection = 0;
2374	}
2375
2376	if (xc_php_size) {
2377	CHECK(xc_php_caches = xc_cache_init(shm, &xc_php_hcache, &xc_php_hentry, &xc_php_hentry, xc_php_size), "failed init opcode cache");
2378	}
2379
2380	if (xc_var_size) {
2381	CHECK(xc_var_caches = xc_cache_init(shm, &xc_var_hcache, &xc_var_hentry, NULL, xc_var_size), "failed init variable cache");
2382	}
2383	}
2384	return SUCCESS;
2385
2386	err:
2387	if (xc_php_caches \|\| xc_var_caches) {
2388	xc_destroy();
2389	/* shm destroied in xc_destroy() */
2390	}
2391	else if (shm) {
2392	xc_destroy();
2393	xc_shm_destroy(shm);
2394	shm = NULL;
2395	}
2396	return 0;
2397	}
2398	/* }}} */
2399	static void xc_request_init(TSRMLS_D) /* {{{ */
2400	{
2401	size_t i;
2402
2403	if (!XG(internal_table_copied)) {
2404	zend_function tmp_func;
2405	xc_cest_t tmp_cest;
2406
2407	#ifdef HAVE_XCACHE_CONSTANT
2408	zend_hash_destroy(&XG(internal_constant_table));
2409	#endif
2410	zend_hash_destroy(&XG(internal_function_table));
2411	zend_hash_destroy(&XG(internal_class_table));
2412
2413	#ifdef HAVE_XCACHE_CONSTANT
2414	zend_hash_init_ex(&XG(internal_constant_table), 20, NULL, (dtor_func_t) xc_zend_constant_dtor, 1, 0);
2415	#endif
2416	zend_hash_init_ex(&XG(internal_function_table), 100, NULL, NULL, 1, 0);
2417	zend_hash_init_ex(&XG(internal_class_table), 10, NULL, NULL, 1, 0);
2418
2419	#ifdef HAVE_XCACHE_CONSTANT
2420	xc_copy_internal_zend_constants(&XG(internal_constant_table), EG(zend_constants));
2421	#endif
2422	zend_hash_copy(&XG(internal_function_table), CG(function_table), NULL, &tmp_func, sizeof(tmp_func));
2423	zend_hash_copy(&XG(internal_class_table), CG(class_table), NULL, &tmp_cest, sizeof(tmp_cest));
2424
2425	XG(internal_table_copied) = 1;
2426	}
2427	if (xc_php_caches && !XG(php_holds)) {
2428	XG(php_holds_size) = xc_php_hcache.size;
2429	XG(php_holds) = calloc(XG(php_holds_size), sizeof(xc_stack_t));
2430	for (i = 0; i < xc_php_hcache.size; i ++) {
2431	xc_stack_init(&XG(php_holds[i]));
2432	}
2433	}
2434
2435	if (xc_var_caches && !XG(var_holds)) {
2436	XG(var_holds_size) = xc_var_hcache.size;
2437	XG(var_holds) = calloc(XG(var_holds_size), sizeof(xc_stack_t));
2438	for (i = 0; i < xc_var_hcache.size; i ++) {
2439	xc_stack_init(&XG(var_holds[i]));
2440	}
2441	}
2442
2443	#ifdef ZEND_ENGINE_2
2444	zend_llist_init(&XG(gc_op_arrays), sizeof(xc_gc_op_array_t), xc_gc_op_array, 0);
2445	#endif
2446
2447	#if PHP_API_VERSION <= 20041225
2448	XG(request_time) = time(NULL);
2449	#else
2450	XG(request_time) = sapi_get_request_time(TSRMLS_C);
2451	#endif
2452	}
2453	/* }}} */
2454	static void xc_request_shutdown(TSRMLS_D) /* {{{ */
2455	{
2456	if (!xc_cache_disabled()) {
2457	xc_entry_unholds(TSRMLS_C);
2458	xc_gc_expires_php(TSRMLS_C);
2459	xc_gc_expires_var(TSRMLS_C);
2460	xc_gc_deletes(TSRMLS_C);
2461	}
2462	#ifdef ZEND_ENGINE_2
2463	zend_llist_destroy(&XG(gc_op_arrays));
2464	#endif
2465	}
2466	/* }}} */
2467
2468	/* user functions */
2469	static int xcache_admin_auth_check(TSRMLS_D) /* {{{ */
2470	{
2471	zval **server = NULL;
2472	zval **user = NULL;
2473	zval **pass = NULL;
2474	char *admin_user = NULL;
2475	char *admin_pass = NULL;
2476	HashTable *ht;
2477
2478	/* auth disabled, nothing to do.. */
2479	if (!xc_admin_enable_auth) {
2480	return 1;
2481	}
2482
2483	if (cfg_get_string("xcache.admin.user", &admin_user) == FAILURE \|\| !admin_user[0]) {
2484	admin_user = NULL;
2485	}
2486	if (cfg_get_string("xcache.admin.pass", &admin_pass) == FAILURE \|\| !admin_pass[0]) {
2487	admin_pass = NULL;
2488	}
2489
2490	if (admin_user == NULL \|\| admin_pass == NULL) {
2491	php_error_docref(XCACHE_WIKI_URL "/InstallAdministration" TSRMLS_CC, E_ERROR,
2492	"xcache.admin.user and/or xcache.admin.pass settings is not configured."
2493	" Make sure you've modified the correct php ini file for your php used in webserver.");
2494	zend_bailout();
2495	}
2496	if (strlen(admin_pass) != 32) {
2497	php_error_docref(NULL TSRMLS_CC, E_ERROR, "xcache.admin.pass is %lu chars unexpectedly, it is supposed to be the password after md5() which should be 32 chars", (unsigned long) strlen(admin_pass));
2498	zend_bailout();
2499	}
2500
2501	#ifdef ZEND_ENGINE_2_1
2502	zend_is_auto_global("_SERVER", sizeof("_SERVER") - 1 TSRMLS_CC);
2503	#endif
2504	if (zend_hash_find(&EG(symbol_table), "_SERVER", sizeof("_SERVER"), (void **) &server) != SUCCESS \|\| Z_TYPE_PP(server) != IS_ARRAY) {
2505	php_error_docref(NULL TSRMLS_CC, E_ERROR, "_SERVER is corrupted");
2506	zend_bailout();
2507	}
2508	ht = HASH_OF((*server));
2509
2510	if (zend_hash_find(ht, "PHP_AUTH_USER", sizeof("PHP_AUTH_USER"), (void **) &user) == FAILURE) {
2511	user = NULL;
2512	}
2513	else if (Z_TYPE_PP(user) != IS_STRING) {
2514	user = NULL;
2515	}
2516
2517	if (zend_hash_find(ht, "PHP_AUTH_PW", sizeof("PHP_AUTH_PW"), (void **) &pass) == FAILURE) {
2518	pass = NULL;
2519	}
2520	else if (Z_TYPE_PP(pass) != IS_STRING) {
2521	pass = NULL;
2522	}
2523
2524	if (user != NULL && pass != NULL && strcmp(admin_user, Z_STRVAL_PP(user)) == 0) {
2525	PHP_MD5_CTX context;
2526	char md5str[33];
2527	unsigned char digest[16];
2528
2529	PHP_MD5Init(&context);
2530	PHP_MD5Update(&context, (unsigned char *) Z_STRVAL_PP(pass), Z_STRLEN_PP(pass));
2531	PHP_MD5Final(digest, &context);
2532
2533	md5str[0] = '\0';
2534	make_digest(md5str, digest);
2535	if (strcmp(admin_pass, md5str) == 0) {
2536	return 1;
2537	}
2538	}
2539
2540	#define STR "HTTP/1.0 401 Unauthorized"
2541	sapi_add_header_ex(STR, sizeof(STR) - 1, 1, 1 TSRMLS_CC);
2542	#undef STR
2543	#define STR "WWW-authenticate: Basic Realm=\"XCache Administration\""
2544	sapi_add_header_ex(STR, sizeof(STR) - 1, 1, 1 TSRMLS_CC);
2545	#undef STR
2546	#define STR "Content-type: text/html; charset=UTF-8"
2547	sapi_add_header_ex(STR, sizeof(STR) - 1, 1, 1 TSRMLS_CC);
2548	#undef STR
2549	ZEND_PUTS("<html>\n");
2550	ZEND_PUTS("<head><title>XCache Authentication Failed</title></head>\n");
2551	ZEND_PUTS("<body>\n");
2552	ZEND_PUTS("<h1>XCache Authentication Failed</h1>\n");
2553	ZEND_PUTS("<p>You're not authorized to access this page due to wrong username and/or password you typed.<br />The following check points is suggested:</p>\n");
2554	ZEND_PUTS("<ul>\n");
2555	ZEND_PUTS("<li>Be aware that `Username' and `Password' is case sense. Check capslock status led on your keyboard, and punch left/right Shift keys once for each</li>\n");
2556	ZEND_PUTS("<li>Make sure the md5 password is generated correctly. You may use <a href=\"mkpassword.php\">mkpassword.php</a></li>\n");
2557	ZEND_PUTS("<li>Reload browser cache by pressing F5 and/or Ctrl+F5, or simply clear browser cache after you've updated username/password in php ini.</li>\n");
2558	ZEND_PUTS("</ul>\n");
2559	ZEND_PUTS("Check <a href=\"" XCACHE_WIKI_URL "/InstallAdministration\">XCache wiki page</a> for more information.\n");
2560	ZEND_PUTS("</body>\n");
2561	ZEND_PUTS("</html>\n");
2562
2563	zend_bailout();
2564	return 0;
2565	}
2566	/* }}} */
2567	static void xc_clear(long type, xc_cache_t cache TSRMLS_DC) / {{{ */
2568	{
2569	xc_entry_t e, next;
2570	int entryslotid, c;
2571
2572	ENTER_LOCK(cache) {
2573	for (entryslotid = 0, c = cache->hentry->size; entryslotid < c; entryslotid ++) {
2574	for (e = cache->entries[entryslotid]; e; e = next) {
2575	next = e->next;
2576	xc_entry_remove_unlocked(type, cache, entryslotid, e TSRMLS_CC);
2577	}
2578	cache->entries[entryslotid] = NULL;
2579	}
2580	} LEAVE_LOCK(cache);
2581	} /* }}} */
2582	/* {{{ xcache_admin_operate */
2583	typedef enum { XC_OP_COUNT, XC_OP_INFO, XC_OP_LIST, XC_OP_CLEAR } xcache_op_type;
2584	static void xcache_admin_operate(xcache_op_type optype, INTERNAL_FUNCTION_PARAMETERS)
2585	{
2586	long type;
2587	int size;
2588	xc_cache_t *caches, cache;
2589	long id = 0;
2590
2591	xcache_admin_auth_check(TSRMLS_C);
2592
2593	if (!xc_initized \|\| xc_cache_disabled()) {
2594	RETURN_NULL();
2595	}
2596
2597	switch (optype) {
2598	case XC_OP_COUNT:
2599	if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "l", &type) == FAILURE) {
2600	return;
2601	}
2602	break;
2603	case XC_OP_CLEAR:
2604	id = -1;
2605	if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "l\|l", &type, &id) == FAILURE) {
2606	return;
2607	}
2608	break;
2609	default:
2610	if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "ll", &type, &id) == FAILURE) {
2611	return;
2612	}
2613	}
2614
2615	switch (type) {
2616	case XC_TYPE_PHP:
2617	size = xc_php_hcache.size;
2618	caches = xc_php_caches;
2619	break;
2620
2621	case XC_TYPE_VAR:
2622	size = xc_var_hcache.size;
2623	caches = xc_var_caches;
2624	break;
2625
2626	default:
2627	php_error_docref(NULL TSRMLS_CC, E_WARNING, "Unknown type %ld", type);
2628	RETURN_FALSE;
2629	}
2630
2631	switch (optype) {
2632	case XC_OP_COUNT:
2633	RETURN_LONG(caches ? size : 0)
2634	break;
2635
2636	case XC_OP_INFO:
2637	case XC_OP_LIST:
2638	if (!caches \|\| id < 0 \|\| id >= size) {
2639	php_error_docref(NULL TSRMLS_CC, E_WARNING, "Cache not exists");
2640	RETURN_FALSE;
2641	}
2642
2643	array_init(return_value);
2644
2645	cache = caches[id];
2646	ENTER_LOCK(cache) {
2647	if (optype == XC_OP_INFO) {
2648	xc_fillinfo_unlocked(type, cache, return_value TSRMLS_CC);
2649	}
2650	else {
2651	xc_filllist_unlocked(type, cache, return_value TSRMLS_CC);
2652	}
2653	} LEAVE_LOCK(cache);
2654	break;
2655
2656	case XC_OP_CLEAR:
2657	if (!caches \|\| id < -1 \|\| id >= size) {
2658	php_error_docref(NULL TSRMLS_CC, E_WARNING, "Cache not exists");
2659	RETURN_FALSE;
2660	}
2661
2662	if (id == -1) {
2663	for (id = 0; id < size; ++id) {
2664	xc_clear(type, caches[id] TSRMLS_CC);
2665	}
2666	}
2667	else {
2668	xc_clear(type, caches[id] TSRMLS_CC);
2669	}
2670
2671	xc_gc_deletes(TSRMLS_C);
2672	break;
2673
2674	default:
2675	assert(0);
2676	}
2677	}
2678	/* }}} */
2679	/* {{{ proto int xcache_count(int type)
2680	Return count of cache on specified cache type */
2681	PHP_FUNCTION(xcache_count)
2682	{
2683	xcache_admin_operate(XC_OP_COUNT, INTERNAL_FUNCTION_PARAM_PASSTHRU);
2684	}
2685	/* }}} */
2686	/* {{{ proto array xcache_info(int type, int id)
2687	Get cache info by id on specified cache type */
2688	PHP_FUNCTION(xcache_info)
2689	{
2690	xcache_admin_operate(XC_OP_INFO, INTERNAL_FUNCTION_PARAM_PASSTHRU);
2691	}
2692	/* }}} */
2693	/* {{{ proto array xcache_list(int type, int id)
2694	Get cache entries list by id on specified cache type */
2695	PHP_FUNCTION(xcache_list)
2696	{
2697	xcache_admin_operate(XC_OP_LIST, INTERNAL_FUNCTION_PARAM_PASSTHRU);
2698	}
2699	/* }}} */
2700	/* {{{ proto array xcache_clear_cache(int type, [ int id = -1 ])
2701	Clear cache by id on specified cache type */
2702	PHP_FUNCTION(xcache_clear_cache)
2703	{
2704	xcache_admin_operate(XC_OP_CLEAR, INTERNAL_FUNCTION_PARAM_PASSTHRU);
2705	}
2706	/* }}} */
2707
2708	#define VAR_DISABLED_WARNING() do { \
2709	php_error_docref(NULL TSRMLS_CC, E_WARNING, "XCache var cache was not initialized properly. Check php log for actual reason"); \
2710	} while (0)
2711
2712	static int xc_entry_var_init_key(xc_entry_var_t entry_var, xc_entry_hash_t entry_hash, zval name TSRMLS_DC) / {{{ */
2713	{
2714	xc_hash_value_t hv;
2715
2716	switch (name->type) {
2717	#ifdef IS_UNICODE
2718	case IS_UNICODE:
2719	case IS_STRING:
2720	#endif
2721	default:
2722	#ifdef IS_UNICODE
2723	convert_to_unicode(name);
2724	#else
2725	convert_to_string(name);
2726	#endif
2727	}
2728
2729	#ifdef IS_UNICODE
2730	entry_var->name_type = name->type;
2731	#endif
2732	entry_var->entry.name = name->value;
2733
2734	hv = xc_entry_hash_var((xc_entry_t *) entry_var TSRMLS_CC);
2735
2736	entry_hash->cacheid = (hv & xc_var_hcache.mask);
2737	hv >>= xc_var_hcache.bits;
2738	entry_hash->entryslotid = (hv & xc_var_hentry.mask);
2739	return SUCCESS;
2740	}
2741	/* }}} */
2742	/* {{{ proto mixed xcache_get(string name)
2743	Get cached data by specified name */
2744	PHP_FUNCTION(xcache_get)
2745	{
2746	xc_entry_hash_t entry_hash;
2747	xc_cache_t *cache;
2748	xc_entry_var_t entry_var, *stored_entry_var;
2749	zval *name;
2750
2751	if (!xc_var_caches \|\| xc_cache_disabled()) {
2752	VAR_DISABLED_WARNING();
2753	RETURN_NULL();
2754	}
2755
2756	if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "z", &name) == FAILURE) {
2757	return;
2758	}
2759	xc_entry_var_init_key(&entry_var, &entry_hash, name TSRMLS_CC);
2760	cache = xc_var_caches[entry_hash.cacheid];
2761
2762	ENTER_LOCK(cache) {
2763	stored_entry_var = (xc_entry_var_t ) xc_entry_find_unlocked(XC_TYPE_VAR, cache, entry_hash.entryslotid, (xc_entry_t ) &entry_var TSRMLS_CC);
2764	if (stored_entry_var) {
2765	/* return */
2766	xc_processor_restore_zval(return_value, stored_entry_var->value, stored_entry_var->have_references TSRMLS_CC);
2767	xc_cache_hit_unlocked(cache TSRMLS_CC);
2768	}
2769	else {
2770	RETVAL_NULL();
2771	}
2772	} LEAVE_LOCK(cache);
2773	}
2774	/* }}} */
2775	/* {{{ proto bool xcache_set(string name, mixed value [, int ttl])
2776	Store data to cache by specified name */
2777	PHP_FUNCTION(xcache_set)
2778	{
2779	xc_entry_hash_t entry_hash;
2780	xc_cache_t *cache;
2781	xc_entry_var_t entry_var, *stored_entry_var;
2782	zval *name;
2783	zval *value;
2784
2785	if (!xc_var_caches \|\| xc_cache_disabled()) {
2786	VAR_DISABLED_WARNING();
2787	RETURN_NULL();
2788	}
2789
2790	entry_var.entry.ttl = XG(var_ttl);
2791	if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "zz\|l", &name, &value, &entry_var.entry.ttl) == FAILURE) {
2792	return;
2793	}
2794
2795	if (Z_TYPE_P(value) == IS_OBJECT) {
2796	php_error_docref(NULL TSRMLS_CC, E_ERROR, "Objects cannot be stored in the variable cache. Use serialize before xcache_set");
2797	RETURN_NULL();
2798	}
2799
2800	/* max ttl */
2801	if (xc_var_maxttl && (!entry_var.entry.ttl \|\| entry_var.entry.ttl > xc_var_maxttl)) {
2802	entry_var.entry.ttl = xc_var_maxttl;
2803	}
2804
2805	xc_entry_var_init_key(&entry_var, &entry_hash, name TSRMLS_CC);
2806	cache = xc_var_caches[entry_hash.cacheid];
2807
2808	ENTER_LOCK(cache) {
2809	stored_entry_var = (xc_entry_var_t ) xc_entry_find_unlocked(XC_TYPE_VAR, cache, entry_hash.entryslotid, (xc_entry_t ) &entry_var TSRMLS_CC);
2810	if (stored_entry_var) {
2811	xc_entry_remove_unlocked(XC_TYPE_VAR, cache, entry_hash.entryslotid, (xc_entry_t *) stored_entry_var TSRMLS_CC);
2812	}
2813	entry_var.value = value;
2814	RETVAL_BOOL(xc_entry_var_store_unlocked(cache, entry_hash.entryslotid, &entry_var TSRMLS_CC) != NULL ? 1 : 0);
2815	} LEAVE_LOCK(cache);
2816	}
2817	/* }}} */
2818	/* {{{ proto bool xcache_isset(string name)
2819	Check if an entry exists in cache by specified name */
2820	PHP_FUNCTION(xcache_isset)
2821	{
2822	xc_entry_hash_t entry_hash;
2823	xc_cache_t *cache;
2824	xc_entry_var_t entry_var, *stored_entry_var;
2825	zval *name;
2826
2827	if (!xc_var_caches \|\| xc_cache_disabled()) {
2828	VAR_DISABLED_WARNING();
2829	RETURN_FALSE;
2830	}
2831
2832	if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "z", &name) == FAILURE) {
2833	return;
2834	}
2835	xc_entry_var_init_key(&entry_var, &entry_hash, name TSRMLS_CC);
2836	cache = xc_var_caches[entry_hash.cacheid];
2837
2838	ENTER_LOCK(cache) {
2839	stored_entry_var = (xc_entry_var_t ) xc_entry_find_unlocked(XC_TYPE_VAR, cache, entry_hash.entryslotid, (xc_entry_t ) &entry_var TSRMLS_CC);
2840	if (stored_entry_var) {
2841	xc_cache_hit_unlocked(cache TSRMLS_CC);
2842	RETVAL_TRUE;
2843	/* return */
2844	}
2845	else {
2846	RETVAL_FALSE;
2847	}
2848
2849	} LEAVE_LOCK(cache);
2850	}
2851	/* }}} */
2852	/* {{{ proto bool xcache_unset(string name)
2853	Unset existing data in cache by specified name */
2854	PHP_FUNCTION(xcache_unset)
2855	{
2856	xc_entry_hash_t entry_hash;
2857	xc_cache_t *cache;
2858	xc_entry_var_t entry_var, *stored_entry_var;
2859	zval *name;
2860
2861	if (!xc_var_caches \|\| xc_cache_disabled()) {
2862	VAR_DISABLED_WARNING();
2863	RETURN_FALSE;
2864	}
2865
2866	if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "z", &name) == FAILURE) {
2867	return;
2868	}
2869	xc_entry_var_init_key(&entry_var, &entry_hash, name TSRMLS_CC);
2870	cache = xc_var_caches[entry_hash.cacheid];
2871
2872	ENTER_LOCK(cache) {
2873	stored_entry_var = (xc_entry_var_t ) xc_entry_find_unlocked(XC_TYPE_VAR, cache, entry_hash.entryslotid, (xc_entry_t ) &entry_var TSRMLS_CC);
2874	if (stored_entry_var) {
2875	xc_entry_remove_unlocked(XC_TYPE_VAR, cache, entry_hash.entryslotid, (xc_entry_t *) stored_entry_var TSRMLS_CC);
2876	RETVAL_TRUE;
2877	}
2878	else {
2879	RETVAL_FALSE;
2880	}
2881	} LEAVE_LOCK(cache);
2882	}
2883	/* }}} */
2884	/* {{{ proto bool xcache_unset_by_prefix(string prefix)
2885	Unset existing data in cache by specified prefix */
2886	PHP_FUNCTION(xcache_unset_by_prefix)
2887	{
2888	zval *prefix;
2889	int i, iend;
2890
2891	if (!xc_var_caches \|\| xc_cache_disabled()) {
2892	VAR_DISABLED_WARNING();
2893	RETURN_FALSE;
2894	}
2895
2896	if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "z", &prefix) == FAILURE) {
2897	return;
2898	}
2899
2900	for (i = 0, iend = xc_var_hcache.size; i < iend; i ++) {
2901	xc_cache_t *cache = xc_var_caches[i];
2902	ENTER_LOCK(cache) {
2903	int entryslotid, jend;
2904	for (entryslotid = 0, jend = cache->hentry->size; entryslotid < jend; entryslotid ++) {
2905	xc_entry_t entry, next;
2906	for (entry = cache->entries[entryslotid]; entry; entry = next) {
2907	next = entry->next;
2908	if (xc_entry_has_prefix_unlocked(XC_TYPE_VAR, entry, prefix)) {
2909	xc_entry_remove_unlocked(XC_TYPE_VAR, cache, entryslotid, entry TSRMLS_CC);
2910	}
2911	}
2912	}
2913	} LEAVE_LOCK(cache);
2914	}
2915	}
2916	/* }}} */
2917	static inline void xc_var_inc_dec(int inc, INTERNAL_FUNCTION_PARAMETERS) /* {{{ */
2918	{
2919	xc_entry_hash_t entry_hash;
2920	xc_cache_t *cache;
2921	xc_entry_var_t entry_var, *stored_entry_var;
2922	zval *name;
2923	long count = 1;
2924	long value = 0;
2925	zval oldzval;
2926
2927	if (!xc_var_caches \|\| xc_cache_disabled()) {
2928	VAR_DISABLED_WARNING();
2929	RETURN_NULL();
2930	}
2931
2932	entry_var.entry.ttl = XG(var_ttl);
2933	if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "z\|ll", &name, &count, &entry_var.entry.ttl) == FAILURE) {
2934	return;
2935	}
2936
2937	/* max ttl */
2938	if (xc_var_maxttl && (!entry_var.entry.ttl \|\| entry_var.entry.ttl > xc_var_maxttl)) {
2939	entry_var.entry.ttl = xc_var_maxttl;
2940	}
2941
2942	xc_entry_var_init_key(&entry_var, &entry_hash, name TSRMLS_CC);
2943	cache = xc_var_caches[entry_hash.cacheid];
2944
2945	ENTER_LOCK(cache) {
2946	stored_entry_var = (xc_entry_var_t ) xc_entry_find_unlocked(XC_TYPE_VAR, cache, entry_hash.entryslotid, (xc_entry_t ) &entry_var TSRMLS_CC);
2947	if (stored_entry_var) {
2948	TRACE("incdec: got entry_var %s", entry_var.entry.name.str.val);
2949	/* do it in place */
2950	if (Z_TYPE_P(stored_entry_var->value) == IS_LONG) {
2951	zval *zv;
2952	stored_entry_var->entry.ctime = XG(request_time);
2953	stored_entry_var->entry.ttl = entry_var.entry.ttl;
2954	TRACE("%s", "incdec: islong");
2955	value = Z_LVAL_P(stored_entry_var->value);
2956	value += (inc == 1 ? count : - count);
2957	RETVAL_LONG(value);
2958
2959	zv = (zval ) cache->shm->handlers->to_readwrite(cache->shm, (char ) stored_entry_var->value);
2960	Z_LVAL_P(zv) = value;
2961	++cache->updates;
2962	break; /* leave lock */
2963	}
2964
2965	TRACE("%s", "incdec: notlong");
2966	xc_processor_restore_zval(&oldzval, stored_entry_var->value, stored_entry_var->have_references TSRMLS_CC);
2967	convert_to_long(&oldzval);
2968	value = Z_LVAL(oldzval);
2969	zval_dtor(&oldzval);
2970	}
2971	else {
2972	TRACE("incdec: %s not found", entry_var.entry.name.str.val);
2973	}
2974
2975	value += (inc == 1 ? count : - count);
2976	RETVAL_LONG(value);
2977	entry_var.value = return_value;
2978
2979	if (stored_entry_var) {
2980	entry_var.entry.atime = stored_entry_var->entry.atime;
2981	entry_var.entry.ctime = stored_entry_var->entry.ctime;
2982	entry_var.entry.hits = stored_entry_var->entry.hits;
2983	xc_entry_remove_unlocked(XC_TYPE_VAR, cache, entry_hash.entryslotid, (xc_entry_t *) stored_entry_var TSRMLS_CC);
2984	}
2985	xc_entry_var_store_unlocked(cache, entry_hash.entryslotid, &entry_var TSRMLS_CC);
2986	} LEAVE_LOCK(cache);
2987	}
2988	/* }}} */
2989	/* {{{ proto int xcache_inc(string name [, int value [, int ttl]])
2990	Increase an int counter in cache by specified name, create it if not exists */
2991	PHP_FUNCTION(xcache_inc)
2992	{
2993	xc_var_inc_dec(1, INTERNAL_FUNCTION_PARAM_PASSTHRU);
2994	}
2995	/* }}} */
2996	/* {{{ proto int xcache_dec(string name [, int value [, int ttl]])
2997	Decrease an int counter in cache by specified name, create it if not exists */
2998	PHP_FUNCTION(xcache_dec)
2999	{
3000	xc_var_inc_dec(-1, INTERNAL_FUNCTION_PARAM_PASSTHRU);
3001	}
3002	/* }}} */
3003	static zend_function_entry xcache_cacher_functions[] = /* {{{ */
3004	{
3005	PHP_FE(xcache_count, NULL)
3006	PHP_FE(xcache_info, NULL)
3007	PHP_FE(xcache_list, NULL)
3008	PHP_FE(xcache_clear_cache, NULL)
3009	PHP_FE(xcache_get, NULL)
3010	PHP_FE(xcache_set, NULL)
3011	PHP_FE(xcache_isset, NULL)
3012	PHP_FE(xcache_unset, NULL)
3013	PHP_FE(xcache_unset_by_prefix, NULL)
3014	PHP_FE(xcache_inc, NULL)
3015	PHP_FE(xcache_dec, NULL)
3016	PHP_FE_END
3017	};
3018	/* }}} */
3019
3020	static int xc_cacher_zend_startup(zend_extension extension) / {{{ */
3021	{
3022	if ((xc_php_size \|\| xc_var_size) && xc_mmap_path && xc_mmap_path[0]) {
3023	if (xc_init() != SUCCESS) {
3024	zend_error(E_ERROR, "XCache: Cannot init");
3025	return FAILURE;
3026	}
3027	xc_initized = 1;
3028	xc_init_time = time(NULL);
3029	#ifdef PHP_WIN32
3030	xc_init_instance_id = GetCurrentProcessId();
3031	#else
3032	xc_init_instance_id = getpid();
3033	#endif
3034	#ifdef ZTS
3035	xc_init_instance_subid = tsrm_thread_id();
3036	#endif
3037	}
3038
3039	if (xc_php_size) {
3040	old_compile_file = zend_compile_file;
3041	zend_compile_file = xc_compile_file;
3042	}
3043
3044	return SUCCESS;
3045	}
3046	/* }}} */
3047	static void xc_cacher_zend_shutdown(zend_extension extension) / {{{ */
3048	{
3049	if (xc_initized) {
3050	xc_destroy();
3051	}
3052	}
3053	/* }}} */
3054	/* {{{ zend extension definition structure */
3055	static zend_extension xc_cacher_zend_extension_entry = {
3056	XCACHE_NAME " Cacher",
3057	XCACHE_VERSION,
3058	XCACHE_AUTHOR,
3059	XCACHE_URL,
3060	XCACHE_COPYRIGHT,
3061	xc_cacher_zend_startup,
3062	xc_cacher_zend_shutdown,
3063	NULL, /* activate_func_t */
3064	NULL, /* deactivate_func_t */
3065	NULL, /* message_handler_func_t */
3066	NULL, /* op_array_handler_func_t */
3067	NULL, /* statement_handler_func_t */
3068	NULL, /* fcall_begin_handler_func_t */
3069	NULL, /* fcall_end_handler_func_t */
3070	NULL, /* op_array_ctor_func_t */
3071	NULL, /* op_array_dtor_func_t */
3072	STANDARD_ZEND_EXTENSION_PROPERTIES
3073	};
3074	/* }}} */
3075
3076	/* {{{ ini */
3077	#ifdef ZEND_WIN32
3078	# define DEFAULT_PATH "xcache"
3079	#else
3080	# define DEFAULT_PATH "/dev/zero"
3081	#endif
3082	PHP_INI_BEGIN()
3083	PHP_INI_ENTRY1 ("xcache.mmap_path", DEFAULT_PATH, PHP_INI_SYSTEM, xcache_OnUpdateString, &xc_mmap_path)
3084	PHP_INI_ENTRY1 ("xcache.readonly_protection", "0", PHP_INI_SYSTEM, xcache_OnUpdateBool, &xc_readonly_protection)
3085	/* opcode cache */
3086	PHP_INI_ENTRY1 ("xcache.admin.enable_auth", "1", PHP_INI_SYSTEM, xcache_OnUpdateBool, &xc_admin_enable_auth)
3087	PHP_INI_ENTRY1 ("xcache.size", "0", PHP_INI_SYSTEM, xcache_OnUpdateDummy, NULL)
3088	PHP_INI_ENTRY1 ("xcache.count", "1", PHP_INI_SYSTEM, xcache_OnUpdateDummy, NULL)
3089	PHP_INI_ENTRY1 ("xcache.slots", "8K", PHP_INI_SYSTEM, xcache_OnUpdateDummy, NULL)
3090	PHP_INI_ENTRY1 ("xcache.shm_scheme", "mmap", PHP_INI_SYSTEM, xcache_OnUpdateString, &xc_shm_scheme)
3091	PHP_INI_ENTRY1 ("xcache.ttl", "0", PHP_INI_SYSTEM, xcache_OnUpdateULong, &xc_php_ttl)
3092	PHP_INI_ENTRY1 ("xcache.gc_interval", "0", PHP_INI_SYSTEM, xcache_OnUpdateULong, &xc_php_gc_interval)
3093	STD_PHP_INI_BOOLEAN("xcache.cacher", "1", PHP_INI_ALL, OnUpdateBool, cacher, zend_xcache_globals, xcache_globals)
3094	STD_PHP_INI_BOOLEAN("xcache.stat", "1", PHP_INI_ALL, OnUpdateBool, stat, zend_xcache_globals, xcache_globals)
3095	/* var cache */
3096	PHP_INI_ENTRY1 ("xcache.var_size", "0", PHP_INI_SYSTEM, xcache_OnUpdateDummy, NULL)
3097	PHP_INI_ENTRY1 ("xcache.var_count", "1", PHP_INI_SYSTEM, xcache_OnUpdateDummy, NULL)
3098	PHP_INI_ENTRY1 ("xcache.var_slots", "8K", PHP_INI_SYSTEM, xcache_OnUpdateDummy, NULL)
3099	PHP_INI_ENTRY1 ("xcache.var_maxttl", "0", PHP_INI_SYSTEM, xcache_OnUpdateULong, &xc_var_maxttl)
3100	PHP_INI_ENTRY1 ("xcache.var_gc_interval", "120", PHP_INI_SYSTEM, xcache_OnUpdateULong, &xc_var_gc_interval)
3101	STD_PHP_INI_ENTRY ("xcache.var_ttl", "0", PHP_INI_ALL, OnUpdateLong, var_ttl, zend_xcache_globals, xcache_globals)
3102	PHP_INI_END()
3103	/* }}} */
3104	static PHP_MINFO_FUNCTION(xcache_cacher) /* {{{ */
3105	{
3106	char buf[100];
3107	char *ptr;
3108	int left, len;
3109	xc_shm_scheme_t *scheme;
3110
3111	php_info_print_table_start();
3112	php_info_print_table_row(2, "Readonly Protection", xc_readonly_protection ? "enabled" : "disabled");
3113	#ifdef ZEND_ENGINE_2_1
3114	ptr = php_format_date("Y-m-d H:i:s", sizeof("Y-m-d H:i:s") - 1, xc_init_time, 1 TSRMLS_CC);
3115	php_info_print_table_row(2, "Cache Init Time", ptr);
3116	efree(ptr);
3117	#else
3118	snprintf(buf, sizeof(buf), "%lu", (long unsigned) xc_init_time);
3119	php_info_print_table_row(2, "Cache Init Time", buf);
3120	#endif
3121
3122	#ifdef ZTS
3123	snprintf(buf, sizeof(buf), "%lu.%lu", xc_init_instance_id, xc_init_instance_subid);
3124	#else
3125	snprintf(buf, sizeof(buf), "%lu", xc_init_instance_id);
3126	#endif
3127	php_info_print_table_row(2, "Cache Instance Id", buf);
3128
3129	if (xc_php_size) {
3130	ptr = _php_math_number_format(xc_php_size, 0, '.', ',');
3131	snprintf(buf, sizeof(buf), "enabled, %s bytes, %lu split(s), with %lu slots each", ptr, xc_php_hcache.size, xc_php_hentry.size);
3132	php_info_print_table_row(2, "Opcode Cache", buf);
3133	efree(ptr);
3134	}
3135	else {
3136	php_info_print_table_row(2, "Opcode Cache", "disabled");
3137	}
3138	if (xc_var_size) {
3139	ptr = _php_math_number_format(xc_var_size, 0, '.', ',');
3140	snprintf(buf, sizeof(buf), "enabled, %s bytes, %lu split(s), with %lu slots each", ptr, xc_var_hcache.size, xc_var_hentry.size);
3141	php_info_print_table_row(2, "Variable Cache", buf);
3142	efree(ptr);
3143	}
3144	else {
3145	php_info_print_table_row(2, "Variable Cache", "disabled");
3146	}
3147
3148	left = sizeof(buf);
3149	ptr = buf;
3150	buf[0] = '\0';
3151	for (scheme = xc_shm_scheme_first(); scheme; scheme = xc_shm_scheme_next(scheme)) {
3152	len = snprintf(ptr, left, ptr == buf ? "%s" : ", %s", xc_shm_scheme_name(scheme));
3153	left -= len;
3154	ptr += len;
3155	}
3156	php_info_print_table_row(2, "Shared Memory Schemes", buf);
3157
3158	php_info_print_table_end();
3159
3160	DISPLAY_INI_ENTRIES();
3161	}
3162	/* }}} */
3163	static int xc_config_hash(xc_hash_t p, char name, char default_value) / {{{ */
3164	{
3165	size_t bits, size;
3166	char *value;
3167
3168	if (cfg_get_string(name, &value) != SUCCESS) {
3169	value = default_value;
3170	}
3171
3172	p->size = zend_atoi(value, strlen(value));
3173	for (size = 1, bits = 1; size < p->size; bits ++, size <<= 1) {
3174	/* empty body */
3175	}
3176	p->size = size;
3177	p->bits = bits;
3178	p->mask = size - 1;
3179
3180	return SUCCESS;
3181	}
3182	/* }}} */
3183	static int xc_config_long(zend_ulong p, char name, char default_value) / {{{ */
3184	{
3185	char *value;
3186
3187	if (cfg_get_string(name, &value) != SUCCESS) {
3188	value = default_value;
3189	}
3190
3191	*p = zend_atol(value, strlen(value));
3192	return SUCCESS;
3193	}
3194	/* }}} */
3195	static PHP_MINIT_FUNCTION(xcache_cacher) /* {{{ */
3196	{
3197	char *env;
3198	zend_extension *ext;
3199	zend_llist_position lpos;
3200
3201	ext = zend_get_extension("Zend Optimizer");
3202	if (ext) {
3203	/* zend_optimizer.optimization_level>0 is not compatible with other cacher, disabling */
3204	ext->op_array_handler = NULL;
3205	}
3206	/* cache if there's an op_array_ctor */
3207	for (ext = zend_llist_get_first_ex(&zend_extensions, &lpos);
3208	ext;
3209	ext = zend_llist_get_next_ex(&zend_extensions, &lpos)) {
3210	if (ext->op_array_ctor) {
3211	xc_have_op_array_ctor = 1;
3212	break;
3213	}
3214	}
3215
3216	/* additional_functions requires PHP 5.3. TODO: find simpler way to do it */
3217	#ifdef ZEND_ENGINE_2_3
3218	if (strcmp(sapi_module.name, "cgi-fcgi") == 0 && !sapi_module.additional_functions && !getenv("XCACHE_SKIP_FCGI_WARNING") && !getenv("GATEWAY_INTERFACE")) {
3219	if ((getenv("PHP_FCGI_CHILDREN") == NULL) \|\| (atoi(getenv("PHP_FCGI_CHILDREN")) < 1)) {
3220	zend_error(E_WARNING, "PHP_FCGI_CHILDREN should be >= 1 and use 1 group of parent/childs model. Set XCACHE_SKIP_FCGI_WARNING=1 to skip this warning. See " XCACHE_WIKI_URL "/Faq");
3221	}
3222	}
3223	#endif
3224
3225	xc_config_long(&xc_php_size, "xcache.size", "0");
3226	xc_config_hash(&xc_php_hcache, "xcache.count", "1");
3227	xc_config_hash(&xc_php_hentry, "xcache.slots", "8K");
3228
3229	xc_config_long(&xc_var_size, "xcache.var_size", "0");
3230	xc_config_hash(&xc_var_hcache, "xcache.var_count", "1");
3231	xc_config_hash(&xc_var_hentry, "xcache.var_slots", "8K");
3232
3233	if (strcmp(sapi_module.name, "cli") == 0) {
3234	if ((env = getenv("XCACHE_TEST")) != NULL) {
3235	xc_test = atoi(env);
3236	}
3237	if (!xc_test) {
3238	/* disable cache for cli except for testing */
3239	xc_php_size = xc_var_size = 0;
3240	}
3241	}
3242
3243	if (xc_php_size <= 0) {
3244	xc_php_size = xc_php_hcache.size = 0;
3245	}
3246	if (xc_var_size <= 0) {
3247	xc_var_size = xc_var_hcache.size = 0;
3248	}
3249
3250	xc_init_constant(module_number TSRMLS_CC);
3251
3252	REGISTER_INI_ENTRIES();
3253
3254	xc_sandbox_module_init(module_number TSRMLS_CC);
3255	return xcache_zend_extension_register(&xc_cacher_zend_extension_entry, 0);
3256
3257	err_init:
3258	return FAILURE;
3259	}
3260	/* }}} */
3261	static PHP_MSHUTDOWN_FUNCTION(xcache_cacher) /* {{{ */
3262	{
3263	xc_sandbox_module_shutdown();
3264
3265	xcache_zend_extension_unregister(&xc_cacher_zend_extension_entry);
3266	UNREGISTER_INI_ENTRIES();
3267
3268	if (xc_mmap_path) {
3269	pefree(xc_mmap_path, 1);
3270	xc_mmap_path = NULL;
3271	}
3272	if (xc_shm_scheme) {
3273	pefree(xc_shm_scheme, 1);
3274	xc_shm_scheme = NULL;
3275	}
3276
3277	return SUCCESS;
3278	}
3279	/* }}} */
3280	static PHP_RINIT_FUNCTION(xcache_cacher) /* {{{ */
3281	{
3282	xc_request_init(TSRMLS_C);
3283	return SUCCESS;
3284	}
3285	/* }}} */
3286	/* {{{ static PHP_RSHUTDOWN_FUNCTION(xcache_cacher) */
3287	#ifndef ZEND_ENGINE_2
3288	static PHP_RSHUTDOWN_FUNCTION(xcache_cacher)
3289	#else
3290	static ZEND_MODULE_POST_ZEND_DEACTIVATE_D(xcache_cacher)
3291	#endif
3292	{
3293	#ifdef ZEND_ENGINE_2
3294	TSRMLS_FETCH();
3295	#endif
3296
3297	xc_request_shutdown(TSRMLS_C);
3298	return SUCCESS;
3299	}
3300	/* }}} */
3301	static zend_module_entry xcache_cacher_module_entry = { /* {{{ */
3302	STANDARD_MODULE_HEADER,
3303	XCACHE_NAME "_Cacher",
3304	xcache_cacher_functions,
3305	PHP_MINIT(xcache_cacher),
3306	PHP_MSHUTDOWN(xcache_cacher),
3307	PHP_RINIT(xcache_cacher),
3308	#ifndef ZEND_ENGINE_2
3309	PHP_RSHUTDOWN(xcache_cacher),
3310	#else
3311	NULL,
3312	#endif
3313	PHP_MINFO(xcache_cacher),
3314	XCACHE_VERSION,
3315	#ifdef PHP_GINIT
3316	NO_MODULE_GLOBALS,
3317	#endif
3318	#ifdef ZEND_ENGINE_2
3319	ZEND_MODULE_POST_ZEND_DEACTIVATE_N(xcache_cacher),
3320	#else
3321	NULL,
3322	NULL,
3323	#endif
3324	STANDARD_MODULE_PROPERTIES_EX
3325	};
3326	/* }}} */
3327	int xc_cacher_startup_module() /* {{{ */
3328	{
3329	return zend_startup_module(&xcache_cacher_module_entry);
3330	}
3331	/* }}} */

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