source: trunk/xcache.h @ 2

#ifndef __XCACHE_H
#define __XCACHE_H
#define XCACHE_NAME       "XCache"
#define XCACHE_VERSION    "1.0"
#define XCACHE_AUTHOR     "mOo"
#define XCACHE_COPYRIGHT  "Copyright (c) 2005-2006"
#define XCACHE_URL        "http://xcache.lighttpd.net"

#include <php.h>
#include <zend_compile.h>
#include <zend_API.h>
#include "php_ini.h"
#include "zend_hash.h"

#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include "myshm.h"
#include "mem.h"
#include "lock.h"

#ifndef ZEND_WIN32
/* UnDefine if your filesystem doesn't support inodes */
#   define HAVE_INODE
#endif
#if !defined(ZEND_ENGINE_2_1) && (PHP_MAJOR_VERSION == 5 && PHP_MINOR_VERSION >= 1 || PHP_MAJOR_VERSION > 5)
#   define ZEND_ENGINE_2_1
#endif

/* ZendEngine code Switcher */
#ifndef ZEND_ENGINE_2
#   define ZESW(v1, v2) v1
#else
#   define ZESW(v1, v2) v2
#endif

/* unicode */
#ifdef IS_UNICODE
#   define UNISW(text, unicode) unicode
#else
#   define UNISW(text, unicode) text
#endif
#define BUCKET_KEY_SIZE(b) \
        (UNISW( \
            (b)->nKeyLength, \
                ((b)->key.type == IS_UNICODE) \
                ? UBYTES(b->nKeyLength) \
                : b->nKeyLength \
                ))
#define BUCKET_KEY(b) (UNISW((b)->arKey, (b)->key.u.string))
#define BUCKET_UKEY(b) (UNISW((b)->arKey, (b)->key.u.unicode))
#define BUCKET_KEY_TYPE(b) (UNISW(0, (b)->key.type))
#ifdef IS_UNICODE
#   define BUCKET_HEAD_SIZE(b) XtOffsetOf(typeof(b[0]), key)
#else
#   define BUCKET_HEAD_SIZE(b) XtOffsetOf(typeof(b[0]), arKey)
#endif
#define BUCKET_SIZE(b) (BUCKET_HEAD_SIZE(b) + BUCKET_KEY_SIZE(b))

#ifndef IS_UNICODE
typedef char *zstr;
#   define ZSTR_S(s) (s)
#   define ZSTR_U(s) (s)
#   define ZSTR_V(s) (s)
#else
#   define ZSTR_S(s) ((s)->s)
#   define ZSTR_U(s) ((s)->u)
#   define ZSTR_V(s) ((s)->v)
#endif

/* {{{ u hash wrapper */
#ifndef IS_UNICODE
#   define zend_u_hash_add(ht, type, arKey, nKeyLength, pData, nDataSize, pDest) \
       zend_hash_add(ht, arKey, nKeyLength, pData, nDataSize, pDest)

#   define zend_u_hash_find(ht, type, arKey, nKeyLength, pData) \
       zend_hash_find(ht, arKey, nKeyLength, pData)

#   define add_u_assoc_zval_ex(arg, type, key, key_len, value) \
        add_assoc_zval_ex(arg, key, key_len, value)

#endif
/* }}} */


#define ECALLOC_N(x, n) ((x) = ecalloc(n, sizeof((x)[0])))
#define ECALLOC_ONE(x) ECALLOC_N(x, 1)



typedef ulong xc_hash_value_t;
typedef struct {
    int bits;
    int size;
    int mask;
} xc_hash_t;

/* the class entry type to be stored in class_table */
typedef ZESW(zend_class_entry, zend_class_entry*) xc_cest_t;

/* xc_cest_t to (zend_class_entry*) */
#define CestToCePtr(st) (ZESW(\
            &(st), \
            st \
            ) )

/* ZCEP=zend class entry ptr */
#define ZCEP_REFCOUNT_PTR(pce) (ZESW( \
            (pce)->refcount, \
            &((pce)->refcount) \
            ))

#define ZCE_REFCOUNT_PTR(ce) ZCE_REFCOUNT_PTR(&ce)

typedef zend_op_array *(zend_compile_file_t)(zend_file_handle *h, int type TSRMLS_DC);

/* {{{ xc_cache_t */
typedef struct _xc_entry_t xc_entry_t;
typedef volatile struct {
    int cacheid;
    xc_hash_t  *hcache; /* hash to cacheid */

    zend_bool  compiling;
    zend_ulong misses;
    zend_ulong hits;
    zend_ulong clogs;
    zend_ulong ooms;
    xc_lock_t  *lck;
    xc_shm_t   *shm; /* to which shm contains us */
    xc_mem_t   *mem; /* to which mem contains us */

    xc_entry_t **entries;
    xc_entry_t *deletes;
    xc_hash_t  *hentry; /* hash to entry */
} xc_cache_t;
/* }}} */
/* {{{ xc_classinfo_t */
typedef struct {
    UNISW(,zend_uchar type;)
    char *key;
    zend_uint key_size;
    xc_cest_t cest;
} xc_classinfo_t;
/* }}} */
/* {{{ xc_funcinfo_t */
typedef struct {
    UNISW(,zend_uchar type;)
    char *key;
    zend_uint key_size;
    zend_function func;
} xc_funcinfo_t;
/* }}} */
typedef enum { XC_TYPE_PHP, XC_TYPE_VAR } xc_entry_type_t;
/* {{{ xc_entry_data_php_t */
typedef struct {
    size_t sourcesize;
#ifdef HAVE_INODE
    int device;             /* the filesystem device */
    int inode;              /* the filesystem inode */
#endif
    time_t mtime;           /* the mtime of origin source file */

    zend_op_array *op_array;

    zend_uint funcinfo_cnt;
    xc_funcinfo_t *funcinfos;

    zend_uint classinfo_cnt;
    xc_classinfo_t *classinfos;
} xc_entry_data_php_t;
/* }}} */
/* {{{ xc_entry_data_var_t */
typedef struct {
    zval   *value;
    time_t etime;
} xc_entry_data_var_t;
/* }}} */
typedef zvalue_value xc_entry_name_t;
/* {{{ xc_entry_t */
struct _xc_entry_t {
    xc_entry_type_t type;
    xc_hash_value_t hvalue;
    xc_entry_t *next;
    xc_cache_t *cache;      /* which cache it's on */

    size_t     size;
    zend_ulong refcount;
    zend_ulong hits;
    time_t     ctime;           /* the ctime of this entry */
    time_t     atime;           /* the atime of this entry */
    time_t     dtime;           /* the deletion time of this entry */

#ifdef IS_UNICODE
    zend_uchar name_type;
#endif
    xc_entry_name_t name;

    union {
        xc_entry_data_php_t *php;
        xc_entry_data_var_t *var;
    } data;
};
/* }}} */

extern zend_module_entry xcache_module_entry;
#define phpext_xcache_ptr &xcache_module_entry

int xc_is_rw(const void *p);
int xc_is_ro(const void *p);
int xc_is_shm(const void *p);

#endif /* __XCACHE_H */