XCache is a fast, stable PHP opcode cacher that has been proven and is now running on production servers under high load. https://xcache.lighttpd.net/
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#ifndef __XCACHE_H
#define __XCACHE_H
#define XCACHE_NAME "XCache"
#define XCACHE_VERSION "2.0.0-dev"
#define XCACHE_AUTHOR "mOo"
#define XCACHE_COPYRIGHT "Copyright (c) 2005-2007"
#define XCACHE_URL "http://xcache.lighttpd.net"
#include <php.h>
#include <zend_compile.h>
#include <zend_API.h>
#include <zend.h>
#include "php_ini.h"
#include "zend_hash.h"
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include "xc_shm.h"
#include "lock.h"
#define HAVE_INODE
#if !defined(ZEND_ENGINE_2_1) && (PHP_MAJOR_VERSION == 5 && PHP_MINOR_VERSION >= 1 || PHP_MAJOR_VERSION > 5)
# define ZEND_ENGINE_2_1
#endif
#if !defined(ZEND_ENGINE_2_2) && (PHP_MAJOR_VERSION == 5 && PHP_MINOR_VERSION >= 2 || PHP_MAJOR_VERSION > 5)
# define ZEND_ENGINE_2_2
#endif
#if !defined(ZEND_ENGINE_2_3) && (PHP_MAJOR_VERSION == 5 && PHP_MINOR_VERSION >= 3 || PHP_MAJOR_VERSION > 5)
# define ZEND_ENGINE_2_3
#endif
#define NOTHING
/* ZendEngine code Switcher */
#ifndef ZEND_ENGINE_2
# define ZESW(v1, v2) v1
#else
# define ZESW(v1, v2) v2
#endif
#ifdef ALLOCA_FLAG
# define my_do_alloca(size, use_heap) do_alloca(size, use_heap)
# define my_free_alloca(size, use_heap) free_alloca(size, use_heap)
#else
# define my_do_alloca(size, use_heap) do_alloca(size)
# define my_free_alloca(size, use_heap) free_alloca(size)
# define ALLOCA_FLAG(x)
#endif
#ifndef Z_SET_ISREF
# define Z_SET_ISREF(z) (z).is_ref = 1;
#endif
#ifndef Z_UNSET_ISREF
# define Z_UNSET_ISREF(z) (z).is_ref = 0;
#endif
#ifndef Z_SET_REFCOUNT
# define Z_SET_REFCOUNT(z, rc) (z).refcount = rc;
#endif
#ifndef IS_CONSTANT_TYPE_MASK
# define IS_CONSTANT_TYPE_MASK 0xf
#endif
/* {{{ dirty fix for PHP 6 */
#ifdef add_assoc_long_ex
static inline void my_add_assoc_long_ex(zval *arg, char *key, uint key_len, long value)
{
add_assoc_long_ex(arg, key, key_len, value);
}
# undef add_assoc_long_ex
# define add_assoc_long_ex my_add_assoc_long_ex
#endif
#ifdef add_assoc_bool_ex
static inline void my_add_assoc_bool_ex(zval *arg, char *key, uint key_len, zend_bool value)
{
add_assoc_bool_ex(arg, key, key_len, value);
}
# undef add_assoc_bool_ex
# define add_assoc_bool_ex my_add_assoc_bool_ex
#endif
#ifdef add_assoc_null_ex
static inline void my_add_assoc_null_ex(zval *arg, char *key, uint key_len)
{
add_assoc_null_ex(arg, key, key_len);
}
# undef add_assoc_null_ex
# define add_assoc_null_ex my_add_assoc_null_ex
#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_S(b) (UNISW((b)->arKey, (b)->key.arKey.s))
#define BUCKET_KEY_U(b) (UNISW((b)->arKey, (b)->key.arKey.u))
#define BUCKET_KEY_TYPE(b) (UNISW(IS_STRING, (b)->key.type))
#ifdef IS_UNICODE
# define BUCKET_HEAD_SIZE(b) XtOffsetOf(Bucket, key.arKey)
#else
# define BUCKET_HEAD_SIZE(b) XtOffsetOf(Bucket, 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)
# define ZSTR_PS(s) (s)
# define ZSTR_PU(s) (s)
# define ZSTR_PV(s) (s)
#else
# define ZSTR_S(zs) ((zs).s)
# define ZSTR_U(zs) ((zs).u)
# define ZSTR_V(zs) ((zs).v)
# define ZSTR_PS(pzs) ((pzs)->s)
# define ZSTR_PU(pzs) ((pzs)->u)
# define ZSTR_PV(pzs) ((pzs)->v)
#endif
#ifndef ZSTR
# define ZSTR(s) (s)
#endif
#ifndef Z_UNIVAL
# define Z_UNIVAL(zval) (zval).value.str.val
# define Z_UNILEN(zval) (zval).value.str.len
#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_update(ht, type, arKey, nKeyLength, pData, nDataSize, pDest) \
zend_hash_update(ht, arKey, nKeyLength, pData, nDataSize, pDest)
# define zend_u_hash_find(ht, type, arKey, nKeyLength, pData) \
zend_hash_find(ht, arKey, nKeyLength, pData)
# define zend_u_hash_quick_find(ht, type, arKey, nKeyLength, h, pData) \
zend_hash_quick_find(ht, arKey, nKeyLength, h, pData)
# define add_u_assoc_zval_ex(arg, type, key, key_len, value) \
add_assoc_zval_ex(arg, key, key_len, value)
# define zend_u_is_auto_global(type, name, name_len) \
zend_is_auto_global(name, name_len)
#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);
typedef struct _xc_entry_t xc_entry_t;
typedef struct _xc_entry_data_php_t xc_entry_data_php_t;
/* {{{ xc_cache_t */
typedef struct {
int cacheid;
xc_hash_t *hcache; /* hash to cacheid */
time_t compiling;
zend_ulong misses;
zend_ulong hits;
zend_ulong clogs;
zend_ulong ooms;
zend_ulong errors;
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;
int entries_count;
xc_entry_data_php_t **phps;
int phps_count;
xc_entry_t *deletes;
int deletes_count;
xc_hash_t *hentry; /* hash settings to entry */
xc_hash_t *hphp; /* hash settings to php */
time_t last_gc_deletes;
time_t last_gc_expires;
} xc_cache_t;
/* }}} */
/* {{{ xc_classinfo_t */
typedef struct {
#ifdef IS_UNICODE
zend_uchar type;
#endif
zstr key;
zend_uint key_size;
xc_cest_t cest;
int oplineno;
} xc_classinfo_t;
/* }}} */
#ifdef HAVE_XCACHE_CONSTANT
/* {{{ xc_constinfo_t */
typedef struct {
#ifdef IS_UNICODE
zend_uchar type;
#endif
zstr key;
zend_uint key_size;
zend_constant constant;
} xc_constinfo_t;
/* }}} */
#endif
/* {{{ xc_funcinfo_t */
typedef struct {
#ifdef IS_UNICODE
zend_uchar type;
#endif
zstr key;
zend_uint key_size;
zend_function func;
} xc_funcinfo_t;
/* }}} */
#ifdef ZEND_ENGINE_2_1
/* {{{ xc_autoglobal_t */
typedef struct {
#ifdef IS_UNICODE
zend_uchar type;
#endif
zstr key;
zend_uint key_len;
} xc_autoglobal_t;
/* }}} */
#endif
typedef enum { XC_TYPE_PHP, XC_TYPE_VAR } xc_entry_type_t;
typedef char xc_md5sum_t[16];
/* {{{ xc_entry_data_php_t */
struct _xc_entry_data_php_t {
xc_hash_value_t hvalue; /* hash of md5 */
xc_entry_data_php_t *next;
xc_cache_t *cache; /* which cache it's on */
xc_md5sum_t md5; /* md5sum of the source */
zend_ulong refcount; /* count of entries referencing to this data */
size_t sourcesize;
zend_ulong hits; /* hits of this php */
size_t size;
zend_op_array *op_array;
#ifdef HAVE_XCACHE_CONSTANT
zend_uint constinfo_cnt;
xc_constinfo_t *constinfos;
#endif
zend_uint funcinfo_cnt;
xc_funcinfo_t *funcinfos;
zend_uint classinfo_cnt;
xc_classinfo_t *classinfos;
zend_bool have_early_binding;
#ifdef ZEND_ENGINE_2_1
zend_uint autoglobal_cnt;
xc_autoglobal_t *autoglobals;
#endif
zend_bool have_references;
};
/* }}} */
/* {{{ xc_entry_data_var_t */
typedef struct {
zval *value;
zend_bool have_references;
} 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; /* count of instances holding this entry */
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 */
long ttl; /* ttl of time entry, var only */
#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;
time_t mtime; /* the mtime of origin source file */
#ifdef HAVE_INODE
int device; /* the filesystem device */
int inode; /* the filesystem inode */
#endif
};
/* }}} */
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 */