root/tags/1.0.1/xcache.c

#undef DEBUG

/* {{{ macros */
#include <stdlib.h>
#include <stdio.h>
#include <string.h>

#include <signal.h>

#include "php.h"
#include "ext/standard/info.h"
#include "ext/standard/md5.h"
#include "ext/standard/php_math.h"
#include "zend_extensions.h"
#include "SAPI.h"

#include "xcache.h"
#include "optimizer.h"
#include "coverager.h"
#include "disassembler.h"
#include "align.h"
#include "stack.h"
#include "xcache_globals.h"
#include "processor.h"
#include "utils.h"
#include "const_string.h"
#include "opcode_spec.h"

#ifdef DEBUG
#   undef NDEBUG
#   undef inline
#   define inline
#else
#   ifndef NDEBUG
#       define NDEBUG
#   endif
#endif
#include <assert.h>

#define CHECK(x, e) do { if ((x) == NULL) { zend_error(E_ERROR, "XCache: " e); goto err; } } while (0)
#define LOCK(x) xc_lock(x->lck)
#define UNLOCK(x) xc_unlock(x->lck)
#define ENTER_LOCK(x) do { \
    int catched = 0; \
    xc_lock(x->lck); \
    zend_try { \
        do
#define LEAVE_LOCK(x) \
        while (0); \
    } zend_catch { \
        catched = 1; \
    } zend_end_try(); \
    xc_unlock(x->lck); \
} while(0)
/* }}} */

/* {{{ globals */
static char *xc_mmap_path = NULL;
static char *xc_coredump_dir = NULL;

static xc_hash_t xc_php_hcache = {0};
static xc_hash_t xc_php_hentry = {0};
static xc_hash_t xc_var_hcache = {0};
static xc_hash_t xc_var_hentry = {0};

/* total size */
static zend_ulong xc_php_size  = 0;
static zend_ulong xc_var_size  = 0;

static xc_cache_t **xc_php_caches = NULL;
static xc_cache_t **xc_var_caches = NULL;

static zend_bool xc_initized = 0;
static zend_compile_file_t *origin_compile_file;

static zend_bool xc_test = 0;
static zend_bool xc_readonly_protection = 0;

static zend_bool xc_module_gotup = 0;
static zend_bool xc_zend_extension_gotup = 0;
#if !COMPILE_DL_XCACHE
#   define zend_extension_entry xcache_zend_extension_entry
#endif
ZEND_DLEXPORT zend_extension zend_extension_entry;
ZEND_DECLARE_MODULE_GLOBALS(xcache);
/* }}} */

/* any function in *_dmz is only safe be called within locked(single thread) area */

static inline int xc_entry_equal_dmz(xc_entry_t *a, xc_entry_t *b) /* {{{ */
{
    /* this function isn't required but can be in dmz */

    if (a->type != b->type) {
        return 0;
    }
    switch (a->type) {
        case XC_TYPE_PHP:
#ifdef HAVE_INODE
            do {
                xc_entry_data_php_t *ap = a->data.php;
                xc_entry_data_php_t *bp = b->data.php;
                return ap->inode == bp->inode
                    && ap->device == bp->device;
            } while(0);
#endif
            /* fall */

        case XC_TYPE_VAR:
            do {
#ifdef IS_UNICODE
                if (a->name_type == IS_UNICODE) {
                    if (a->name.ustr.len != b->name.ustr.len) {
                        return 0;
                    }
                    return memcmp(a->name.ustr.val, b->name.ustr.val, (a->name.ustr.len + 1) * sizeof(UChar)) == 0;
                }
                else {
                    return memcmp(a->name.str.val, b->name.str.val, a->name.str.len + 1) == 0;
                }
#else
                return memcmp(a->name.str.val, b->name.str.val, a->name.str.len + 1) == 0;
#endif

            } while(0);
        default:
            assert(0);
    }
    return 0;
}
/* }}} */
static void xc_entry_free_dmz(volatile xc_entry_t *xce) /* {{{ */
{
    xc_mem_free(xce->cache->mem, (xc_entry_t *)xce);
}
/* }}} */
static void xc_entry_add_dmz(xc_entry_t *xce) /* {{{ */
{
    xc_entry_t **head = &(xce->cache->entries[xce->hvalue]);
    xce->next = *head;
    *head = xce;
    xce->cache->entries_count ++;
}
/* }}} */
static xc_entry_t *xc_entry_store_dmz(xc_entry_t *xce TSRMLS_DC) /* {{{ */
{
    xc_entry_t *stored_xce;

    xce->hits  = 0;
    xce->ctime = XG(request_time);
    xce->atime = XG(request_time);
    stored_xce = xc_processor_store_xc_entry_t(xce TSRMLS_CC);
    if (stored_xce) {
        xc_entry_add_dmz(stored_xce);
        return stored_xce;
    }
    else {
        xce->cache->ooms ++;
        return NULL;
    }
}
/* }}} */
static void xc_entry_remove_dmz(xc_entry_t *xce TSRMLS_DC) /* {{{ */
{
    xc_entry_t **last = &(xce->cache->entries[xce->hvalue]);
    xc_entry_t *p;
    for (p = *last; p; last = &(p->next), p = p->next) {
        if (xc_entry_equal_dmz(xce, p)) {
            *last = p->next;
            xce->cache->entries_count ++;
            if (p->refcount == 0) {
                xc_entry_free_dmz(p);
            }
            else {
                p->next = p->cache->deletes;
                p->cache->deletes = p;
                p->dtime = XG(request_time);
                xce->cache->deletes_count ++;
            }
            return;
        }
    }
    assert(0);
}
/* }}} */
static xc_entry_t *xc_entry_find_dmz(xc_entry_t *xce TSRMLS_DC) /* {{{ */
{
    xc_entry_t *p;
    for (p = xce->cache->entries[xce->hvalue]; p; p = p->next) {
        if (xc_entry_equal_dmz(xce, p)) {
            if (p->type == XC_TYPE_VAR || /* PHP */ p->data.php->mtime == xce->data.php->mtime) {
                p->hits ++;
                p->atime = XG(request_time);
                return p;
            }
            else {
                xc_entry_remove_dmz(p TSRMLS_CC);
                return NULL;
            }
        }
    }
    return NULL;
}
/* }}} */
static void xc_entry_hold_php_dmz(xc_entry_t *xce TSRMLS_DC) /* {{{ */
{
    xce->refcount ++;
    xc_stack_push(&XG(php_holds)[xce->cache->cacheid], (void *)xce);
}
/* }}} */
#if 0
static void xc_entry_hold_var_dmz(xc_entry_t *xce TSRMLS_DC) /* {{{ */
{
    xce->refcount ++;
    xc_stack_push(&XG(var_holds)[xce->cache->cacheid], (void *)xce);
}
/* }}} */
#endif

/* helper functions for user functions */
static void xc_fillinfo_dmz(xc_cache_t *cache, zval *return_value TSRMLS_DC) /* {{{ */
{
    zval *blocks;
    const xc_block_t *b;
#ifndef NDEBUG
    xc_memsize_t avail = 0;
#endif
    xc_mem_t *mem = cache->mem;

    add_assoc_long_ex(return_value, ZEND_STRS("slots"),     cache->hentry->size);
    add_assoc_long_ex(return_value, ZEND_STRS("compiling"), cache->compiling);
    add_assoc_long_ex(return_value, ZEND_STRS("misses"),    cache->misses);
    add_assoc_long_ex(return_value, ZEND_STRS("hits"),      cache->hits);
    add_assoc_long_ex(return_value, ZEND_STRS("clogs"),     cache->clogs);
    add_assoc_long_ex(return_value, ZEND_STRS("ooms"),      cache->ooms);

    add_assoc_long_ex(return_value, ZEND_STRS("cached"), cache->entries_count);
    add_assoc_long_ex(return_value, ZEND_STRS("deleted"), cache->deletes_count);

    MAKE_STD_ZVAL(blocks);
    array_init(blocks);

    add_assoc_long_ex(return_value, ZEND_STRS("size"),  xc_mem_size(mem));
    add_assoc_long_ex(return_value, ZEND_STRS("avail"), xc_mem_avail(mem));
    add_assoc_bool_ex(return_value, ZEND_STRS("can_readonly"), xc_readonly_protection);

    for (b = xc_mem_freeblock_first(mem); b; b = xc_mem_freeblock_next(b)) {
        zval *bi;

        MAKE_STD_ZVAL(bi);
        array_init(bi);

        add_assoc_long_ex(bi, ZEND_STRS("size"),   xc_mem_block_size(b));
        add_assoc_long_ex(bi, ZEND_STRS("offset"), xc_mem_block_offset(mem, b));
        add_next_index_zval(blocks, bi);
#ifndef NDEBUG
        avail += b->size;
#endif
    }
    add_assoc_zval_ex(return_value, ZEND_STRS("free_blocks"), blocks);
    assert(avail == xc_mem_avail(mem));
}
/* }}} */
static void xc_fillentry_dmz(xc_entry_t *entry, int del, zval *list TSRMLS_DC) /* {{{ */
{
    zval* ei;
    xc_entry_data_php_t *php;
    xc_entry_data_var_t *var;

    ALLOC_INIT_ZVAL(ei);
    array_init(ei);

    add_assoc_long_ex(ei, ZEND_STRS("size"),     entry->size);
    add_assoc_long_ex(ei, ZEND_STRS("refcount"), entry->refcount);
    add_assoc_long_ex(ei, ZEND_STRS("hits"),     entry->hits);
    add_assoc_long_ex(ei, ZEND_STRS("ctime"),    entry->ctime);
    add_assoc_long_ex(ei, ZEND_STRS("atime"),    entry->atime);
    add_assoc_long_ex(ei, ZEND_STRS("dtime"),    entry->dtime);
#ifdef IS_UNICODE
    do {
        zval *zv;
        ALLOC_INIT_ZVAL(zv);
        switch (entry->name_type) {
            case IS_UNICODE:
                    ZVAL_UNICODEL(zv, entry->name.ustr.val, entry->name.ustr.len, 1);
                break;
            case IS_STRING:
                ZVAL_STRINGL(zv, entry->name.str.val, entry->name.str.len, 1);
                break;
            default:
                assert(0);
        }
        zv->type = entry->name_type;
        add_assoc_zval_ex(ei, ZEND_STRS("name"), zv);
    } while (0);
#else
    add_assoc_stringl_ex(ei, ZEND_STRS("name"), entry->name.str.val, entry->name.str.len + 1, 1);
#endif
    switch (entry->type) {
        case XC_TYPE_PHP:
            php = entry->data.php;
            add_assoc_long_ex(ei, ZEND_STRS("sourcesize"),   php->sourcesize);
#ifdef HAVE_INODE
            add_assoc_long_ex(ei, ZEND_STRS("device"),       php->device);
            add_assoc_long_ex(ei, ZEND_STRS("inode"),        php->inode);
#endif
            add_assoc_long_ex(ei, ZEND_STRS("mtime"),        php->mtime);

            add_assoc_long_ex(ei, ZEND_STRS("function_cnt"), php->funcinfo_cnt);
            add_assoc_long_ex(ei, ZEND_STRS("class_cnt"),    php->classinfo_cnt);
            break;
        case XC_TYPE_VAR:
            var = entry->data.var;
            break;

        default:
            assert(0);
    }

    add_next_index_zval(list, ei);
}
/* }}} */
static void xc_filllist_dmz(xc_cache_t *cache, zval *return_value TSRMLS_DC) /* {{{ */
{
    zval* list;
    int i, c;
    xc_entry_t *e;

    ALLOC_INIT_ZVAL(list);
    array_init(list);

    for (i = 0, c = cache->hentry->size; i < c; i ++) {
        for (e = cache->entries[i]; e; e = e->next) {
            xc_fillentry_dmz(e, 0, list TSRMLS_CC);
        }
    }
    add_assoc_zval(return_value, "cache_list", list);

    ALLOC_INIT_ZVAL(list);
    array_init(list);
    for (e = cache->deletes; e; e = e->next) {
        xc_fillentry_dmz(e, 1, list TSRMLS_CC);
    }
    add_assoc_zval(return_value, "deleted_list", list);
}
/* }}} */

static zend_op_array *xc_entry_install(xc_entry_t *xce, zend_file_handle *h TSRMLS_DC) /* {{{ */
{
    zend_uint i;
    xc_entry_data_php_t *p = xce->data.php;
#ifndef ZEND_ENGINE_2
    /* new ptr which is stored inside CG(class_table) */
    xc_cest_t **new_cest_ptrs = (xc_cest_t **)do_alloca(sizeof(xc_cest_t*) * p->classinfo_cnt);
#endif

    /* install function */
    for (i = 0; i < p->funcinfo_cnt; i ++) {
        xc_funcinfo_t  *fi = &p->funcinfos[i];
        xc_install_function(xce->name.str.val, &fi->func,
                UNISW(0, fi->type), fi->key, fi->key_size TSRMLS_CC);
    }

    /* install class */
    for (i = 0; i < p->classinfo_cnt; i ++) {
        xc_classinfo_t *ci = &p->classinfos[i];
#ifndef ZEND_ENGINE_2
        zend_class_entry *ce = CestToCePtr(ci->cest);
        /* fix pointer to the be which inside class_table */
        if (ce->parent) {
            zend_uint class_idx = (/* class_num */ (int) ce->parent) - 1;
            assert(class_idx < i);
            ci->cest.parent = new_cest_ptrs[class_idx];
        }
        new_cest_ptrs[i] =
#endif
        xc_install_class(xce->name.str.val, &ci->cest,
                UNISW(0, ci->type), ci->key, ci->key_size TSRMLS_CC);
    }

    i = 1;
    zend_hash_add(&EG(included_files), xce->name.str.val, xce->name.str.len+1, (void *)&i, sizeof(int), NULL);
    zend_llist_add_element(&CG(open_files), h);

#ifndef ZEND_ENGINE_2
    free_alloca(new_cest_ptrs);
#endif
    return p->op_array;
}
/* }}} */
static void xc_entry_gc_real(xc_cache_t **caches, int size TSRMLS_DC) /* {{{ */
{
    time_t t = XG(request_time);
    int i;
    xc_cache_t *cache;
    typedef xc_entry_t *xc_delete_t;
    xc_delete_t p, *last;

    for (i = 0; i < size; i ++) {
        cache = caches[i];
        ENTER_LOCK(cache) {
            if (cache->deletes) {
                last = (xc_delete_t *) &cache->deletes;
                for (p = *last; p; p = *last) {
                    if (t - p->dtime > 3600) {
                        p->refcount = 0;
                        /* issue warning here */
                    }
                    if (p->refcount == 0) {
                        *last = p->next;
                        cache->deletes_count --;
                        xc_entry_free_dmz(p);
                    }
                    else {
                        last = &(p->next);
                    }
                }
            }
        } LEAVE_LOCK(cache);
    }
}
/* }}} */
static void xc_entry_gc(TSRMLS_D) /* {{{ */
{
    xc_entry_gc_real(xc_php_caches, xc_php_hcache.size TSRMLS_CC);
    xc_entry_gc_real(xc_var_caches, xc_var_hcache.size TSRMLS_CC);
}
/* }}} */
static inline void xc_entry_unholds_real(xc_stack_t *holds, xc_cache_t **caches, int cachecount TSRMLS_DC) /* {{{ */
{
    int i;
    xc_stack_t *s;
    xc_cache_t *cache;
    xc_entry_t *xce;

    for (i = 0; i < cachecount; i ++) {
        s = &holds[i];
        if (xc_stack_size(s)) {
            cache = ((xc_entry_t *)xc_stack_top(s))->cache;
            ENTER_LOCK(cache) {
                while (xc_stack_size(holds)) {
                    xce = (xc_entry_t*) xc_stack_pop(holds);
                    xce->refcount --;
                    assert(xce->refcount >= 0);
                }
            } LEAVE_LOCK(cache);
        }
    }
}
/* }}} */
static void xc_entry_unholds(TSRMLS_D) /* {{{ */
{
    xc_entry_unholds_real(XG(php_holds), xc_php_caches, xc_php_hcache.size TSRMLS_CC);
    xc_entry_unholds_real(XG(var_holds), xc_var_caches, xc_var_hcache.size TSRMLS_CC);
}
/* }}} */
static int xc_stat(const char *filename, const char *include_path, struct stat *pbuf TSRMLS_DC) /* {{{ */
{
    char filepath[1024];
    char *paths, *path;
    char *tokbuf;
    int size = strlen(include_path) + 1;
    char tokens[] = { DEFAULT_DIR_SEPARATOR, '\0' };

    paths = (char *)do_alloca(size);
    memcpy(paths, include_path, size);

    for (path = php_strtok_r(paths, tokens, &tokbuf); path; path = php_strtok_r(NULL, tokens, &tokbuf)) {
        if (strlen(path) + strlen(filename) + 1 > 1024) {
            continue;
        }
        snprintf(filepath, sizeof(filepath), "%s/%s", path, filename);
        if (VCWD_STAT(filepath, pbuf) == 0) {
            free_alloca(paths);
            return 0;
        }
    }

    free_alloca(paths);

    return 1;
}
/* }}} */

#define HASH(i) (i)
#define HASH_USTR_L(t, s, l) HASH(zend_u_inline_hash_func(t, s, (l + 1) * sizeof(UChar)))
#define HASH_STR_L(s, l) HASH(zend_inline_hash_func(s, l + 1))
#define HASH_STR(s) HASH_STR_L(s, strlen(s) + 1)
#define HASH_NUM(n) HASH(n)
static inline xc_hash_value_t xc_entry_hash_var(xc_entry_t *xce) /* {{{ */
{
    return UNISW(NOTHING, UG(unicode) ? HASH_USTR_L(xce->name_type, (char *)xce->name.ustr.val, xce->name.ustr.len) :)
        HASH_STR_L(xce->name.str.val, xce->name.str.len);
}
/* }}} */
static inline xc_hash_value_t xc_entry_hash_php(xc_entry_t *xce) /* {{{ */
{
#ifdef HAVE_INODE
    return HASH(xce->data.php->device + xce->data.php->inode);
#else
    return xc_entry_hash_var(xce);
#endif
}
/* }}} */
static int xc_entry_init_key_php(xc_entry_t *xce, char *filename TSRMLS_DC) /* {{{ */
{
    struct stat buf, *pbuf;
    xc_hash_value_t hv;
    int cacheid;
    xc_entry_data_php_t *php;

    if (!filename || !SG(request_info).path_translated) {
        return 0;
    }

    do {
        if (strcmp(SG(request_info).path_translated, filename) == 0) {
            /* sapi has already done this stat() for us */
            pbuf = sapi_get_stat(TSRMLS_C);
            if (pbuf) {
                break;
            }
        }

        pbuf = &buf;
        if (IS_ABSOLUTE_PATH(filename, strlen(filename))) {
            if (VCWD_STAT(filename, pbuf) != 0) {
                return 0;
            }
        }
        else {
            if (xc_stat(filename, PG(include_path), pbuf TSRMLS_CC) != 0) {   
                return 0;
            }
        }
    } while (0);

    if (XG(request_time) - pbuf->st_mtime < 2) {
        return 0;
    }

    UNISW(NOTHING, xce->name_type = IS_STRING;)
    xce->name.str.val = filename;
    xce->name.str.len = strlen(filename);

    php = xce->data.php;
    php->mtime        = pbuf->st_mtime;
#ifdef HAVE_INODE
    php->device       = pbuf->st_dev;
    php->inode        = pbuf->st_ino;
#endif
    php->sourcesize   = pbuf->st_size;


    hv = xc_entry_hash_php(xce);
    cacheid = (hv & xc_php_hcache.mask);
    xce->cache = xc_php_caches[cacheid];
    hv >>= xc_php_hcache.bits;
    xce->hvalue = (hv & xc_php_hentry.mask);

    xce->type = XC_TYPE_PHP;
    return 1;
}
/* }}} */
static zend_op_array *xc_compile_file(zend_file_handle *h, int type TSRMLS_DC) /* {{{ */
{
    xc_sandbox_t sandbox;
    zend_op_array *op_array;
    xc_entry_t xce, *stored_xce;
    xc_entry_data_php_t php;
    xc_cache_t *cache;
    zend_bool clogged = 0;
    zend_bool catched = 0;
    char *filename;

    if (!xc_initized) {
        assert(0);
    }

    if (!XG(cacher)) {
        op_array = origin_compile_file(h, type TSRMLS_CC);
#ifdef HAVE_XCACHE_OPTIMIZER
        if (XG(optimizer)) {
            xc_optimize(op_array TSRMLS_CC);
        }
#endif
        return op_array;
    }

    /* {{{ prepare key
     * include_once() and require_once() gives us opened_path
     * however, include() and require() non-absolute path which break
     * included_files, and may confuse with (include|require)_once
     * -- Xuefer
     */

    filename = h->opened_path ? h->opened_path : h->filename;
    xce.data.php = &php;
    if (!xc_entry_init_key_php(&xce, filename TSRMLS_CC)) {
        return origin_compile_file(h, type TSRMLS_CC);
    }
    cache = xce.cache;
    /* }}} */
    /* {{{ restore */
    /* stale precheck */
    if (cache->compiling) {
        cache->clogs ++; /* is it safe here? */
        return origin_compile_file(h, type TSRMLS_CC);
    }

    stored_xce = NULL;
    op_array = NULL;
    ENTER_LOCK(cache) {
        /* clogged */
        if (cache->compiling) {
            cache->clogs ++;
            op_array = NULL;
            clogged = 1;
            break;
        }

        stored_xce = xc_entry_find_dmz(&xce TSRMLS_CC);
        /* found */
        if (stored_xce) {
#ifdef DEBUG
            fprintf(stderr, "found %s, catch it\n", stored_xce->name.str.val);
#endif
            xc_entry_hold_php_dmz(stored_xce TSRMLS_CC);
            cache->hits ++;
            break;
        }

        cache->compiling = XG(request_time);
        cache->misses ++;
    } LEAVE_LOCK(cache);

    /* found */
    if (stored_xce) {
        goto restore;
    }

    /* clogged */
    if (clogged) {
        return origin_compile_file(h, type TSRMLS_CC);
    }
    /* }}} */

    /* {{{ compile */
#ifdef DEBUG
    fprintf(stderr, "compiling %s\n", filename);
#endif

    /* make compile inside sandbox */
    xc_sandbox_init(&sandbox, filename TSRMLS_CC);

    zend_try {
        op_array = origin_compile_file(h, type TSRMLS_CC);
    } zend_catch {
        catched = 1;
    } zend_end_try();

    if (catched) {
        goto err_bailout;
    }

    if (op_array == NULL) {
        goto err_oparray;
    }

    filename = h->opened_path ? h->opened_path : h->filename;
    if (xce.name.str.val != filename) {
        xce.name.str.val = filename;
        xce.name.str.len = strlen(filename);
    }

#ifdef HAVE_XCACHE_OPTIMIZER
    if (XG(optimizer)) {
        xc_optimize(op_array TSRMLS_CC);
    }
#endif

    php.op_array      = op_array;

    php.funcinfo_cnt  = zend_hash_num_elements(CG(function_table));
    php.classinfo_cnt = zend_hash_num_elements(CG(class_table));

    php.funcinfos     = ECALLOC_N(php.funcinfos, php.funcinfo_cnt);
    if (!php.funcinfos) {
        goto err_func;
    }
    php.classinfos    = ECALLOC_N(php.classinfos, php.classinfo_cnt);
    if (!php.classinfos) {
        goto err_class;
    }
    /* }}} */
    /* {{{ shallow copy, pointers only */ {
        Bucket *b;
        unsigned int i;

        b = CG(function_table)->pListHead;
        for (i = 0; b; i ++, b = b->pListNext) {
            xc_funcinfo_t *fi = &php.funcinfos[i];

            assert(i < php.funcinfo_cnt);
            assert(b->pData);
            memcpy(&fi->func, b->pData, sizeof(zend_function));
            UNISW(NOTHING, fi->type = b->key.type;)
            fi->key        = BUCKET_KEY(b);
            fi->key_size   = b->nKeyLength;
        }

        b = CG(class_table)->pListHead;
        for (i = 0; b; i ++, b = b->pListNext) {
            xc_classinfo_t *ci = &php.classinfos[i];

            assert(i < php.classinfo_cnt);
            assert(b->pData);
            memcpy(&ci->cest, b->pData, sizeof(xc_cest_t));
            UNISW(NOTHING, ci->type = b->key.type;)
            ci->key        = BUCKET_KEY(b);
            ci->key_size   = b->nKeyLength;
            /* need to fix inside store */
        }
    }
    /* }}} */
    xc_entry_gc(TSRMLS_C);
    ENTER_LOCK(cache) { /* {{{ store/add entry */
        stored_xce = xc_entry_store_dmz(&xce TSRMLS_CC);
    } LEAVE_LOCK(cache);
    /* }}} */
#ifdef DEBUG
    fprintf(stderr, "stored\n");
#endif

    efree(xce.data.php->classinfos);
err_class:
    efree(xce.data.php->funcinfos);
err_func:
err_oparray:
err_bailout:

    if (xc_test && stored_xce) {
        /* no install, keep open_files too for h */
        xc_sandbox_free(&sandbox, 0 TSRMLS_CC);
        sandbox.tmp_open_files->dtor = NULL;
    }
    else {
        xc_sandbox_free(&sandbox, 1 TSRMLS_CC);
    }

    ENTER_LOCK