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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#if 0
#define XCACHE_DEBUG
#endif
#if 0
#define SHOW_DPRINT
#endif
/* {{{ 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"
#ifdef ZEND_ENGINE_2_1
#include "ext/date/php_date.h"
#endif
#include "optimizer.h"
#include "coverager.h"
#include "disassembler.h"
#include "align.h"
#include "stack.h"
#include "xcache_globals.h"
#include "processor.h"
#include "const_string.h"
#include "opcode_spec.h"
#include "utils.h"
#define VAR_ENTRY_EXPIRED(pentry) ((pentry)->ttl && XG(request_time) > pentry->ctime + (pentry)->ttl)
#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_EX(x) \
xc_lock(x->lck); \
zend_try { \
do
#define LEAVE_LOCK_EX(x) \
while (0); \
} zend_catch { \
catched = 1; \
} zend_end_try(); \
xc_unlock(x->lck)
#define ENTER_LOCK(x) do { \
int catched = 0; \
ENTER_LOCK_EX(x)
#define LEAVE_LOCK(x) \
LEAVE_LOCK_EX(x); \
if (catched) { \
zend_bailout(); \
} \
} while(0)
/* }}} */
/* {{{ globals */
static char *xc_shm_scheme = NULL;
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};
static zend_ulong xc_php_ttl = 0;
static zend_ulong xc_var_maxttl = 0;
enum { xc_deletes_gc_interval = 120 };
static zend_ulong xc_php_gc_interval = 0;
static zend_ulong xc_var_gc_interval = 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 time_t xc_init_time = 0;
static long unsigned xc_init_instance_id = 0;
#ifdef ZTS
static long unsigned xc_init_instance_subid = 0;
#endif
static zend_compile_file_t *origin_compile_file = NULL;
static zend_compile_file_t *old_compile_file = NULL;
static zend_llist_element *xc_llist_zend_extension = NULL;
static zend_bool xc_test = 0;
static zend_bool xc_readonly_protection = 0;
zend_bool xc_have_op_array_ctor = 0;
static zend_bool xc_module_gotup = 0;
static zend_bool xc_zend_extension_gotup = 0;
static zend_bool xc_zend_extension_faked = 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;
if (ap->inode) {
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_real_dmz(volatile xc_entry_t *xce) /* {{{ */
{
xce->cache->mem->handlers->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_free_dmz(xc_entry_t *xce TSRMLS_DC) /* {{{ */
{
xce->cache->entries_count --;
if (xce->refcount == 0) {
xc_entry_free_real_dmz(xce);
}
else {
xce->next = xce->cache->deletes;
xce->cache->deletes = xce;
xce->dtime = XG(request_time);
xce->cache->deletes_count ++;
}
return;
}
/* }}} */
static void xc_entry_remove_dmz(xc_entry_t *xce TSRMLS_DC) /* {{{ */
{
xc_entry_t **pp = &(xce->cache->entries[xce->hvalue]);
xc_entry_t *p;
for (p = *pp; p; pp = &(p->next), p = p->next) {
if (xc_entry_equal_dmz(xce, p)) {
/* unlink */
*pp = p->next;
xc_entry_free_dmz(xce TSRMLS_CC);
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->data.php->sourcesize == xce->data.php->sourcesize)) {
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) /* {{{ */
{
TRACE("hold %s", xce->name.str.val);
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
static inline zend_uint advance_wrapped(zend_uint val, zend_uint count) /* {{{ */
{
if (val + 1 >= count) {
return 0;
}
return val + 1;
}
/* }}} */
static void xc_counters_inc(time_t *curtime, zend_uint *curslot, time_t period, zend_ulong *counters, zend_uint count TSRMLS_DC) /* {{{ */
{
time_t n = XG(request_time) / period;
if (*curtime != n) {
zend_uint target_slot = n % count;
if (n - *curtime > period) {
memset(counters, 0, sizeof(counters[0]) * count);
}
else {
zend_uint slot;
for (slot = advance_wrapped(*curslot, count);
slot != target_slot;
slot = advance_wrapped(slot, count)) {
counters[slot] = 0;
}
counters[target_slot] = 0;
}
*curtime = n;
*curslot = target_slot;
}
counters[*curslot] ++;
}
/* }}} */
static void xc_cache_hit_dmz(xc_cache_t *cache TSRMLS_DC) /* {{{ */
{
cache->hits ++;
xc_counters_inc(&cache->hits_by_hour_cur_time
, &cache->hits_by_hour_cur_slot, 60 * 60
, cache->hits_by_hour
, sizeof(cache->hits_by_hour) / sizeof(cache->hits_by_hour[0])
TSRMLS_CC);
xc_counters_inc(&cache->hits_by_second_cur_time
, &cache->hits_by_second_cur_slot
, 1
, cache->hits_by_second
, sizeof(cache->hits_by_second) / sizeof(cache->hits_by_second[0])
TSRMLS_CC);
}
/* }}} */
/* helper function that loop through each entry */
#define XC_ENTRY_APPLY_FUNC(name) int name(xc_entry_t *entry TSRMLS_DC)
typedef XC_ENTRY_APPLY_FUNC((*cache_apply_dmz_func_t));
static void xc_entry_apply_dmz(xc_cache_t *cache, cache_apply_dmz_func_t apply_func TSRMLS_DC) /* {{{ */
{
xc_entry_t *p, **pp;
int i, c;
for (i = 0, c = cache->hentry->size; i < c; i ++) {
pp = &(cache->entries[i]);
for (p = *pp; p; p = *pp) {
if (apply_func(p TSRMLS_CC)) {
/* unlink */
*pp = p->next;
xc_entry_free_dmz(p TSRMLS_CC);
}
else {
pp = &(p->next);
}
}
}
}
/* }}} */
#define XC_CACHE_APPLY_FUNC(name) void name(xc_cache_t *cache TSRMLS_DC)
/* call graph:
* xc_gc_expires_php -> xc_gc_expires_one -> xc_entry_apply_dmz -> xc_gc_expires_php_entry_dmz
* xc_gc_expires_var -> xc_gc_expires_one -> xc_entry_apply_dmz -> xc_gc_expires_var_entry_dmz
*/
static XC_ENTRY_APPLY_FUNC(xc_gc_expires_php_entry_dmz) /* {{{ */
{
TRACE("ttl %lu, %lu %lu", (zend_ulong) XG(request_time), (zend_ulong) entry->atime, xc_php_ttl);
if (XG(request_time) > entry->atime + xc_php_ttl) {
return 1;
}
return 0;
}
/* }}} */
static XC_ENTRY_APPLY_FUNC(xc_gc_expires_var_entry_dmz) /* {{{ */
{
if (VAR_ENTRY_EXPIRED(entry)) {
return 1;
}
return 0;
}
/* }}} */
static void xc_gc_expires_one(xc_cache_t *cache, zend_ulong gc_interval, cache_apply_dmz_func_t apply_func TSRMLS_DC) /* {{{ */
{
TRACE("interval %lu, %lu %lu", (zend_ulong) XG(request_time), (zend_ulong) cache->last_gc_expires, gc_interval);
if (XG(request_time) - cache->last_gc_expires >= gc_interval) {
ENTER_LOCK(cache) {
if (XG(request_time) - cache->last_gc_expires >= gc_interval) {
cache->last_gc_expires = XG(request_time);
xc_entry_apply_dmz(cache, apply_func TSRMLS_CC);
}
} LEAVE_LOCK(cache);
}
}
/* }}} */
static void xc_gc_expires_php(TSRMLS_D) /* {{{ */
{
int i, c;
if (!xc_php_ttl || !xc_php_gc_interval || !xc_php_caches) {
return;
}
for (i = 0, c = xc_php_hcache.size; i < c; i ++) {
xc_gc_expires_one(xc_php_caches[i], xc_php_gc_interval, xc_gc_expires_php_entry_dmz TSRMLS_CC);
}
}
/* }}} */
static void xc_gc_expires_var(TSRMLS_D) /* {{{ */
{
int i, c;
if (!xc_var_gc_interval || !xc_var_caches) {
return;
}
for (i = 0, c = xc_var_hcache.size; i < c; i ++) {
xc_gc_expires_one(xc_var_caches[i], xc_var_gc_interval, xc_gc_expires_var_entry_dmz TSRMLS_CC);
}
}
/* }}} */
static XC_CACHE_APPLY_FUNC(xc_gc_delete_dmz) /* {{{ */
{
xc_entry_t *p, **pp;
pp = &cache->deletes;
for (p = *pp; p; p = *pp) {
if (XG(request_time) - p->dtime > 3600) {
p->refcount = 0;
/* issue warning here */
}
if (p->refcount == 0) {
/* unlink */
*pp = p->next;
cache->deletes_count --;
xc_entry_free_real_dmz(p);
}
else {
pp = &(p->next);
}
}
}
/* }}} */
static XC_CACHE_APPLY_FUNC(xc_gc_deletes_one) /* {{{ */
{
if (cache->deletes && XG(request_time) - cache->last_gc_deletes > xc_deletes_gc_interval) {
ENTER_LOCK(cache) {
if (cache->deletes && XG(request_time) - cache->last_gc_deletes > xc_deletes_gc_interval) {
cache->last_gc_deletes = XG(request_time);
xc_gc_delete_dmz(cache TSRMLS_CC);
}
} LEAVE_LOCK(cache);
}
}
/* }}} */
static void xc_gc_deletes(TSRMLS_D) /* {{{ */
{
int i, c;
if (xc_php_caches) {
for (i = 0, c = xc_php_hcache.size; i < c; i ++) {
xc_gc_deletes_one(xc_php_caches[i] TSRMLS_CC);
}
}
if (xc_var_caches) {
for (i = 0, c = xc_var_hcache.size; i < c; i ++) {
xc_gc_deletes_one(xc_var_caches[i] TSRMLS_CC);
}
}
}
/* }}} */
/* helper functions for user functions */
static void xc_fillinfo_dmz(int cachetype, xc_cache_t *cache, zval *return_value TSRMLS_DC) /* {{{ */
{
zval *blocks, *hits;
int i;
const xc_block_t *b;
#ifndef NDEBUG
xc_memsize_t avail = 0;
#endif
xc_mem_t *mem = cache->mem;
const xc_mem_handlers_t *handlers = mem->handlers;
zend_ulong interval;
if (cachetype == XC_TYPE_PHP) {
interval = xc_php_ttl ? xc_php_gc_interval : 0;
}
else {
interval = xc_var_gc_interval;
}
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("errors"), cache->errors);
add_assoc_long_ex(return_value, ZEND_STRS("cached"), cache->entries_count);
add_assoc_long_ex(return_value, ZEND_STRS("deleted"), cache->deletes_count);
if (interval) {
time_t gc = (cache->last_gc_expires + interval) - XG(request_time);
add_assoc_long_ex(return_value, ZEND_STRS("gc"), gc > 0 ? gc : 0);
}
else {
add_assoc_null_ex(return_value, ZEND_STRS("gc"));
}
MAKE_STD_ZVAL(hits);
array_init(hits);
for (i = 0; i < sizeof(cache->hits_by_hour) / sizeof(cache->hits_by_hour[0]); i ++) {
add_next_index_long(hits, (long) cache->hits_by_hour[i]);
}
add_assoc_zval_ex(return_value, ZEND_STRS("hits_by_hour"), hits);
MAKE_STD_ZVAL(hits);
array_init(hits);
for (i = 0; i < sizeof(cache->hits_by_second) / sizeof(cache->hits_by_second[0]); i ++) {
add_next_index_long(hits, (long) cache->hits_by_second[i]);
}
add_assoc_zval_ex(return_value, ZEND_STRS("hits_by_second"), hits);
MAKE_STD_ZVAL(blocks);
array_init(blocks);
add_assoc_long_ex(return_value, ZEND_STRS("size"), handlers->size(mem));
add_assoc_long_ex(return_value, ZEND_STRS("avail"), handlers->avail(mem));
add_assoc_bool_ex(return_value, ZEND_STRS("can_readonly"), xc_readonly_protection);
for (b = handlers->freeblock_first(mem); b; b = handlers->freeblock_next(b)) {
zval *bi;
MAKE_STD_ZVAL(bi);
array_init(bi);
add_assoc_long_ex(bi, ZEND_STRS("size"), handlers->block_size(b));
add_assoc_long_ex(bi, ZEND_STRS("offset"), handlers->block_offset(mem, b));
add_next_index_zval(blocks, bi);
#ifndef NDEBUG
avail += handlers->block_size(b);
#endif
}
add_assoc_zval_ex(return_value, ZEND_STRS("free_blocks"), blocks);
#ifndef NDEBUG
assert(avail == handlers->avail(mem));
#endif
}
/* }}} */
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("hvalue"), entry->hvalue);
if (del) {
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);
#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);
#ifdef HAVE_XCACHE_CONSTANT
add_assoc_long_ex(ei, ZEND_STRS("constinfo_cnt"), php->constinfo_cnt);
#endif
add_assoc_long_ex(ei, ZEND_STRS("function_cnt"), php->funcinfo_cnt);
add_assoc_long_ex(ei, ZEND_STRS("class_cnt"), php->classinfo_cnt);
#ifdef ZEND_ENGINE_2_1
add_assoc_long_ex(ei, ZEND_STRS("autoglobal_cnt"),php->autoglobal_cnt);
#endif
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;
zend_op_array *old_active_op_array = CG(active_op_array);
#ifndef ZEND_ENGINE_2
ALLOCA_FLAG(use_heap)
/* new ptr which is stored inside CG(class_table) */
xc_cest_t **new_cest_ptrs = (xc_cest_t **)my_do_alloca(sizeof(xc_cest_t*) * p->classinfo_cnt, use_heap);
#endif
CG(active_op_array) = p->op_array;
#ifdef HAVE_XCACHE_CONSTANT
/* install constant */
for (i = 0; i < p->constinfo_cnt; i ++) {
xc_constinfo_t *ci = &p->constinfos[i];
xc_install_constant(xce->name.str.val, &ci->constant,
UNISW(0, ci->type), ci->key, ci->key_size, ci->h TSRMLS_CC);
}
#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, fi->h 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) (long) ce->parent) - 1;
assert(class_idx < i);
ci->cest.parent = new_cest_ptrs[class_idx];
}
new_cest_ptrs[i] =
#endif
#ifdef ZEND_COMPILE_DELAYED_BINDING
xc_install_class(xce->name.str.val, &ci->cest, -1,
UNISW(0, ci->type), ci->key, ci->key_size, ci->h TSRMLS_CC);
#else
xc_install_class(xce->name.str.val, &ci->cest, ci->oplineno,
UNISW(0, ci->type), ci->key, ci->key_size, ci->h TSRMLS_CC);
#endif
}
#ifdef ZEND_ENGINE_2_1
/* trigger auto_globals jit */
for (i = 0; i < p->autoglobal_cnt; i ++) {
xc_autoglobal_t *aginfo = &p->autoglobals[i];
/*
zend_auto_global *auto_global;
if (zend_u_hash_quick_find(CG(auto_globals), aginfo->type, aginfo->key, aginfo->key_len+1, aginfo->h, (void **) &auto_global)==SUCCESS) {
if (auto_global->armed) {
auto_global->armed = auto_global->auto_global_callback(auto_global->name, auto_global->name_len TSRMLS_CC);
}
}
*/
zend_u_is_auto_global(aginfo->type, aginfo->key, aginfo->key_len TSRMLS_CC);
}
#endif
i = 1;
zend_hash_add(&EG(included_files), xce->name.str.val, xce->name.str.len+1, (void *)&i, sizeof(int), NULL);
if (h) {
zend_llist_add_element(&CG(open_files), h);
}
#ifndef ZEND_ENGINE_2
my_free_alloca(new_cest_ptrs, use_heap);
#endif
CG(active_op_array) = old_active_op_array;
return p->op_array;
}
/* }}} */
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];
TRACE("holded %d", xc_stack_count(s));
if (xc_stack_count(s)) {
cache = ((xc_entry_t *)xc_stack_top(s))->cache;
ENTER_LOCK(cache) {
while (xc_stack_count(s)) {
xce = (xc_entry_t*) xc_stack_pop(s);
TRACE("unhold %s", xce->name.str.val);
xce->refcount --;
assert(xce->refcount >= 0);
}
} LEAVE_LOCK(cache);
}
}
}
/* }}} */
static void xc_entry_unholds(TSRMLS_D) /* {{{ */
{
if (xc_php_caches) {
xc_entry_unholds_real(XG(php_holds), xc_php_caches, xc_php_hcache.size TSRMLS_CC);
}
if (xc_var_caches) {
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[MAXPATHLEN];
char *paths, *path;
char *tokbuf;
int size = strlen(include_path) + 1;
char tokens[] = { DEFAULT_DIR_SEPARATOR, '\0' };
ALLOCA_FLAG(use_heap)
paths = (char *)my_do_alloca(size, use_heap);
memcpy(paths, include_path, size);
for (path = php_strtok_r(paths, tokens, &tokbuf); path; path = php_strtok_r(NULL, tokens, &tokbuf)) {
if (snprintf(filepath, sizeof(filepath), "%s/%s", path, filename) >= MAXPATHLEN - 1) {
continue;
}
if (VCWD_STAT(filepath, pbuf) == 0) {
my_free_alloca(paths, use_heap);
return SUCCESS;
}
}
my_free_alloca(paths, use_heap);
return FAILURE;
}
/* }}} */
#define HASH(i) (i)
#define HASH_ZSTR_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_hash_fold(xc_hash_value_t hvalue, const xc_hash_t *hasher) /* {{{ fold hash bits as needed */
{
xc_hash_value_t folded = 0;
while (hvalue) {
folded ^= (hvalue & hasher->mask);
hvalue >>= hasher->bits;
}
return folded;
}
/* }}} */
static inline xc_hash_value_t xc_entry_hash_name(xc_entry_t *xce TSRMLS_DC) /* {{{ */
{
return UNISW(NOTHING, UG(unicode) ? HASH_ZSTR_L(xce->name_type, xce->name.uni.val, xce->name.uni.len) :)
HASH_STR_L(xce->name.str.val, xce->name.str.len);
}
/* }}} */
#define xc_entry_hash_var xc_entry_hash_name
static inline xc_hash_value_t xc_entry_hash_php(xc_entry_t *xce TSRMLS_DC) /* {{{ */
{
#ifdef HAVE_INODE
if (xce->data.php->inode) {
return HASH(xce->data.php->device + xce->data.php->inode);
}
#endif
return xc_entry_hash_name(xce TSRMLS_CC);
}
/* }}} */
static int xc_entry_init_key_php(xc_entry_t *xce, char *filename, char *opened_path_buffer TSRMLS_DC) /* {{{ */
{
struct stat buf, *pbuf;
xc_hash_value_t hv;
int cacheid;
xc_entry_data_php_t *php;
char *ptr;
time_t delta;
if (!filename || !SG(request_info).path_translated) {
return FAILURE;
}
if (strstr(filename, "://") != NULL) {
return FAILURE;
}
php = xce->data.php;
if (XG(stat)) {
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) {
goto stat_done;
}
}
/* absolute path */
pbuf = &buf;
if (IS_ABSOLUTE_PATH(filename, strlen(filename))) {
if (VCWD_STAT(filename, pbuf) != 0) {
return FAILURE;
}
goto stat_done;
}
/* relative path */
if (*filename == '.' && (IS_SLASH(filename[1]) || filename[1] == '.')) {
ptr = filename + 1;
if (*ptr == '.') {
while (*(++ptr) == '.');
if (!IS_SLASH(*ptr)) {
goto not_relative_path;
}
}
if (VCWD_STAT(filename, pbuf) != 0) {
return FAILURE;
}
goto stat_done;
}
not_relative_path:
/* use include_path */
if (xc_stat(filename, PG(include_path), pbuf TSRMLS_CC) != SUCCESS) {
return FAILURE;
}
/* fall */
stat_done:
delta = XG(request_time) - pbuf->st_mtime;
if (abs(delta) < 2 && !xc_test) {
return FAILURE;
}
php->mtime = pbuf->st_mtime;
#ifdef HAVE_INODE
php->device = pbuf->st_dev;
php->inode = pbuf->st_ino;
#endif
php->sourcesize = pbuf->st_size;
}
else { /* XG(inode) */
php->mtime = 0;
#ifdef HAVE_INODE
php->device = 0;
php->inode = 0;
#endif
php->sourcesize = 0;
}
#ifdef HAVE_INODE
if (!php->inode)
#endif
{
/* hash on filename, let's expand it to real path */
filename = expand_filepath(filename, opened_path_buffer TSRMLS_CC);
if (filename == NULL) {
return FAILURE;
}
}
UNISW(NOTHING, xce->name_type = IS_STRING;)
xce->name.str.val = filename;
xce->name.str.len = strlen(filename);
hv = xc_entry_hash_php(xce TSRMLS_CC);
cacheid = xc_hash_fold(hv, &xc_php_hcache);
xce->cache = xc_php_caches[cacheid];
xce->hvalue = xc_hash_fold(hv, &xc_php_hentry);
xce->type = XC_TYPE_PHP;
return SUCCESS;
}
/* }}} */
#ifndef ZEND_COMPILE_DELAYED_BINDING
static void xc_cache_early_binding_class_cb(zend_op *opline, int oplineno, void *data TSRMLS_DC) /* {{{ */
{
char *class_name;
int i, class_len;
xc_cest_t cest;
xc_entry_data_php_t *php = (xc_entry_data_php_t *) data;
class_name = opline->op1.u.constant.value.str.val;
class_len = opline->op1.u.constant.value.str.len;
if (zend_hash_find(CG(class_table), class_name, class_len, (void **) &cest) == FAILURE) {
assert(0);
}
TRACE("got ZEND_DECLARE_INHERITED_CLASS: %s", class_name + 1);
/* let's see which class */
for (i = 0; i < php->classinfo_cnt; i ++) {
if (memcmp(ZSTR_S(php->classinfos[i].key), class_name, class_len) == 0) {
php->classinfos[i].oplineno = oplineno;
php->have_early_binding = 1;
break;
}
}
if (i == php->classinfo_cnt) {
assert(0);
}
}
/* }}} */
#endif
static zend_op_array *xc_check_initial_compile_file(zend_file_handle *h, int type TSRMLS_DC) /* {{{ */
{
XG(initial_compile_file_called) = 1;
return origin_compile_file(h, type TSRMLS_CC);
}
/* }}} */
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;
char opened_path_buffer[MAXPATHLEN];
int old_constinfo_cnt, old_funcinfo_cnt, old_classinfo_cnt;
if (!xc_initized) {
assert(0);
}
if (!XG(cacher)) {
op_array = old_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, opened_path_buffer TSRMLS_CC) != SUCCESS) {
return old_compile_file(h, type TSRMLS_CC);
}
cache = xce.cache;
/* }}} */
/* {{{ restore */
/* stale precheck */
if (cache->compiling) {
cache->clogs ++; /* is it safe here? */
return old_compile_file(h, type TSRMLS_CC);
}
stored_xce = NULL;
op_array = NULL;
ENTER_LOCK_EX(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) {
TRACE("found %s, catch it", stored_xce->name.str.val);
xc_entry_hold_php_dmz(stored_xce TSRMLS_CC);
xc_cache_hit_dmz(cache TSRMLS_CC);
break;
}
cache->compiling = XG(request_time);
cache->misses ++;
} LEAVE_LOCK_EX(cache);
if (catched) {
cache->compiling = 0;
zend_bailout();
}
/* found */
if (stored_xce) {
goto restore;
}
/* clogged */
if (clogged) {
return old_compile_file(h, type TSRMLS_CC);
}
/* }}} */
/* {{{ compile */
TRACE("compiling %s", filename);
/* make compile inside sandbox */
xc_sandbox_init(&sandbox, filename TSRMLS_CC);
old_classinfo_cnt = zend_hash_num_elements(CG(class_table));
old_funcinfo_cnt = zend_hash_num_elements(CG(function_table));
old_constinfo_cnt = zend_hash_num_elements(EG(zend_constants));
XG(initial_compile_file_called) = 0;
zend_try {
op_array = old_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;
}
if (!XG(initial_compile_file_called)) {
xc_sandbox_free(&sandbox, XC_InstallNoBinding TSRMLS_CC);
ENTER_LOCK(cache) {
cache->compiling = 0;
/* it's not cachable, but don't scare the users with high misses */
cache->misses --;
} LEAVE_LOCK(cache);
return op_array;
}
filename = h->opened_path ? h->opened_path : h->filename;
/* none-inode enabled entry hash/compare on name
* do not update to its name to real pathname
*/
#ifdef HAVE_INODE
if (xce.data.php->inode)
{
if (xce.name.str.val != filename) {
xce.name.str.val = filename;
xce.name.str.len = strlen(filename);
}
}
#endif
#ifdef HAVE_XCACHE_OPTIMIZER
if (XG(optimizer)) {
xc_optimize(op_array TSRMLS_CC);
}
#endif
/* }}} */
/* {{{ prepare */
php.op_array = op_array;
#ifdef HAVE_XCACHE_CONSTANT
php.constinfo_cnt = zend_hash_num_elements(EG(zend_constants)) - old_constinfo_cnt;
#endif
php.funcinfo_cnt = zend_hash_num_elements(CG(function_table)) - old_funcinfo_cnt;
php.classinfo_cnt = zend_hash_num_elements(CG(class_table)) - old_classinfo_cnt;
#ifdef ZEND_ENGINE_2_1
/* {{{ count php.autoglobal_cnt */ {
Bucket *b;
php.autoglobal_cnt = 0;
for (b = CG(auto_globals)->pListHead; b != NULL; b = b->pListNext) {
zend_auto_global *auto_global = (zend_auto_global *) b->pData;
/* check if actived */
if (auto_global->auto_global_callback && !auto_global->armed) {
php.autoglobal_cnt ++;
}
}
}
/* }}} */
#endif
#define X_ALLOC_N(var, cnt) do { \
if (php.cnt) { \
ECALLOC_N(php.var, php.cnt); \
if (!php.var) { \
goto err_##var; \
} \
} \
else { \
php.var = NULL; \
} \
} while (0)
#ifdef HAVE_XCACHE_CONSTANT
X_ALLOC_N(constinfos, constinfo_cnt);
#endif
X_ALLOC_N(funcinfos, funcinfo_cnt);
X_ALLOC_N(classinfos, classinfo_cnt);
#ifdef ZEND_ENGINE_2_1
X_ALLOC_N(autoglobals, autoglobal_cnt);
#endif
#undef X_ALLOC
/* }}} */
/* {{{ shallow copy, pointers only */ {
Bucket *b;
unsigned int i;
unsigned int j;
#define COPY_H(vartype, var, cnt, name, datatype) do { \
for (i = 0, j = 0; b; i ++, b = b->pListNext) { \
vartype *data = &php.var[j]; \
\
if (i < old_##cnt) { \
continue; \
} \
j ++; \
\
assert(i < old_##cnt + php.cnt); \
assert(b->pData); \
memcpy(&data->name, b->pData, sizeof(datatype)); \
UNISW(NOTHING, data->type = b->key.type;) \
if (UNISW(1, b->key.type == IS_STRING)) { \
ZSTR_S(data->key) = BUCKET_KEY_S(b); \
} \
else { \
ZSTR_U(data->key) = BUCKET_KEY_U(b); \
} \
data->key_size = b->nKeyLength; \
data->h = b->h; \
} \
} while(0)
#ifdef HAVE_XCACHE_CONSTANT
b = EG(zend_constants)->pListHead; COPY_H(xc_constinfo_t, constinfos, constinfo_cnt, constant, zend_constant);
#endif
b = CG(function_table)->pListHead; COPY_H(xc_funcinfo_t, funcinfos, funcinfo_cnt, func, zend_function);
b = CG(class_table)->pListHead; COPY_H(xc_classinfo_t, classinfos, classinfo_cnt, cest, xc_cest_t);
#undef COPY_H
/* for ZE1, cest need to be fixed inside store */
#ifdef ZEND_ENGINE_2_1
/* scan for acatived auto globals */
i = 0;
for (b = CG(auto_globals)->pListHead; b != NULL; b = b->pListNext) {
zend_auto_global *auto_global = (zend_auto_global *) b->pData;
/* check if actived */
if (auto_global->auto_global_callback && !auto_global->armed) {
xc_autoglobal_t *data = &php.autoglobals[i];
assert(i < php.autoglobal_cnt);
i ++;
UNISW(NOTHING, data->type = b->key.type;)
if (UNISW(1, b->key.type == IS_STRING)) {
ZSTR_S(data->key) = BUCKET_KEY_S(b);
}
else {
ZSTR_U(data->key) = BUCKET_KEY_U(b);
}
data->key_len = b->nKeyLength - 1;
data->h = b->h;
}
}
#endif
}
/* }}} */
#ifndef ZEND_COMPILE_DELAYED_BINDING
/* {{{ find inherited classes that should be early-binding */
php.have_early_binding = 0;
{
int i;
for (i = 0; i < php.classinfo_cnt; i ++) {
php.classinfos[i].oplineno = -1;
}
}
xc_undo_pass_two(php.op_array TSRMLS_CC);
xc_foreach_early_binding_class(php.op_array, xc_cache_early_binding_class_cb, (void *) &php TSRMLS_CC);
xc_redo_pass_two(php.op_array TSRMLS_CC);
/* }}} */
#endif
#ifdef SHOW_DPRINT
xc_dprint(&xce, 0 TSRMLS_CC);
#endif
ENTER_LOCK_EX(cache) { /* {{{ store/add entry */
stored_xce = xc_entry_store_dmz(&xce TSRMLS_CC);
} LEAVE_LOCK_EX(cache);
/* }}} */
TRACE("%s", "stored");
#define X_FREE(var) \
if (xce.data.php->var) { \
efree(xce.data.php->var); \
} \
err_##var:
#ifdef ZEND_ENGINE_2_1
X_FREE(autoglobals)
#endif
X_FREE(classinfos)
X_FREE(funcinfos)
#ifdef HAVE_XCACHE_CONSTANT
X_FREE(constinfos)
#endif
#undef X_FREE
err_oparray:
err_bailout:
if (xc_test && stored_xce) {
/* free it, no install. restore now */
xc_sandbox_free(&sandbox, XC_NoInstall TSRMLS_CC);
}
else if (!op_array) {
/* failed to compile free it, no install */
xc_sandbox_free(&sandbox, XC_NoInstall TSRMLS_CC);
}
else {
zend_op_array *old_active_op_array = CG(active_op_array);
CG(active_op_array) = op_array;
xc_sandbox_free(&sandbox, XC_Install TSRMLS_CC);
CG(active_op_array) = old_active_op_array;
}
ENTER_LOCK(cache) {
cache->compiling = 0;
} LEAVE_LOCK(cache);
if (catched) {
cache->errors ++;
zend_bailout();
}
if (xc_test && stored_xce) {
#ifdef ZEND_ENGINE_2
destroy_op_array(op_array TSRMLS_CC);
#else
destroy_op_array(op_array);
#endif
efree(op_array);
h = NULL;
goto restore;
}
return op_array;
restore:
CG(in_compilation) = 1;
CG(compiled_filename) = stored_xce->name.str.val;
CG(zend_lineno) = 0;
TRACE("restoring %s", stored_xce->name.str.val);
xc_processor_restore_xc_entry_t(&xce, stored_xce, xc_readonly_protection TSRMLS_CC);
#ifdef SHOW_DPRINT
xc_dprint(&xce, 0 TSRMLS_CC);
#endif
catched = 0;
zend_try {
op_array = xc_entry_install(&xce, h TSRMLS_CC);
} zend_catch {
catched = 1;
} zend_end_try();
#define X_FREE(var) \
if (xce.data.php->var) { \
efree(xce.data.php->var); \
}
X_FREE(classinfos)
X_FREE(funcinfos)
#ifdef HAVE_XCACHE_CONSTANT
X_FREE(constinfos)
#endif
#undef X_FREE
efree(xce.data.php);
if (catched) {
zend_bailout();
}
CG(in_compilation) = 0;
CG(compiled_filename) = NULL;
TRACE("restored %s", stored_xce->name.str.val);
return op_array;
}
/* }}} */
/* gdb helper functions, but N/A for coredump */
int xc_is_rw(const void *p) /* {{{ */
{
xc_shm_t *shm;
int i;
if (xc_php_caches) {
for (i = 0; i < xc_php_hcache.size; i ++) {
shm = xc_php_caches[i]->shm;
if (shm->handlers->is_readwrite(shm, p)) {
return 1;
}
}
}
if (xc_var_caches) {
for (i = 0; i < xc_var_hcache.size; i ++) {
shm = xc_var_caches[i]->shm;
if (shm->handlers->is_readwrite(shm, p)) {
return 1;
}
}
}
return 0;
}
/* }}} */
int xc_is_ro(const void *p) /* {{{ */
{
xc_shm_t *shm;
int i;
if (xc_php_caches) {
for (i = 0; i < xc_php_hcache.size; i ++) {
shm = xc_php_caches[i]->shm;
if (shm->handlers->is_readonly(shm, p)) {
return 1;
}
}
}
if (xc_var_caches) {
for (i = 0; i < xc_var_hcache.size; i ++) {
shm = xc_var_caches[i]->shm;
if (shm->handlers->is_readonly(shm, p)) {
return 1;
}
}
}
return 0;
}
/* }}} */
int xc_is_shm(const void *p) /* {{{ */
{
return xc_is_ro(p) || xc_is_rw(p);
}
/* }}} */
#ifdef ZEND_ENGINE_2
/* {{{ xc_gc_op_array_t */
typedef struct {
zend_uint num_args;
zend_arg_info *arg_info;
} xc_gc_op_array_t;
/* }}} */
void xc_gc_add_op_array(zend_op_array *op_array TSRMLS_DC) /* {{{ */
{
xc_gc_op_array_t gc_op_array;
gc_op_array.num_args = op_array->num_args;
gc_op_array.arg_info = op_array->arg_info;
#ifdef ZEND_ENGINE_2
zend_hash_next_index_insert(&XG(gc_op_arrays), (void *) &gc_op_array, sizeof(gc_op_array), NULL);
#endif
}
/* }}} */
static void xc_gc_op_array(void *pDest) /* {{{ */
{
xc_gc_op_array_t *op_array = (xc_gc_op_array_t *) pDest;
zend_uint i;
if (op_array->arg_info) {
for (i = 0; i < op_array->num_args; i++) {
efree((char *) ZSTR_V(op_array->arg_info[i].name));
if (ZSTR_V(op_array->arg_info[i].class_name)) {
efree((char *) ZSTR_V(op_array->arg_info[i].class_name));
}
}
efree(op_array->arg_info);
}
}
/* }}} */
#endif
/* module helper function */
static int xc_init_constant(int module_number TSRMLS_DC) /* {{{ */
{
typedef struct {
const char *prefix;
zend_uchar (*getsize)();
const char *(*get)(zend_uchar i);
} xc_meminfo_t;
xc_meminfo_t nameinfos[] = {
{ "", xc_get_op_type_count, xc_get_op_type },
{ "", xc_get_data_type_count, xc_get_data_type },
{ "", xc_get_opcode_count, xc_get_opcode },
{ "OPSPEC_", xc_get_op_spec_count, xc_get_op_spec },
{ NULL, NULL, NULL }
};
xc_meminfo_t* p;
zend_uchar i, count;
char const_name[96];
int const_name_len;
int undefdone = 0;
for (p = nameinfos; p->getsize; p ++) {
count = p->getsize();
for (i = 0; i < count; i ++) {
const char *name = p->get(i);
if (!name) continue;
if (strcmp(name, "UNDEF") == 0) {
if (undefdone) continue;
undefdone = 1;
}
const_name_len = snprintf(const_name, sizeof(const_name), "XC_%s%s", p->prefix, name);
zend_register_long_constant(const_name, const_name_len+1, i, CONST_CS | CONST_PERSISTENT, module_number TSRMLS_CC);
}
}
zend_register_long_constant(ZEND_STRS("XC_SIZEOF_TEMP_VARIABLE"), sizeof(temp_variable), CONST_CS | CONST_PERSISTENT, module_number TSRMLS_CC);
zend_register_long_constant(ZEND_STRS("XC_TYPE_PHP"), XC_TYPE_PHP, CONST_CS | CONST_PERSISTENT, module_number TSRMLS_CC);
zend_register_long_constant(ZEND_STRS("XC_TYPE_VAR"), XC_TYPE_VAR, CONST_CS | CONST_PERSISTENT, module_number TSRMLS_CC);
zend_register_stringl_constant(ZEND_STRS("XCACHE_VERSION"), ZEND_STRL(XCACHE_VERSION), CONST_CS | CONST_PERSISTENT, module_number TSRMLS_CC);
zend_register_stringl_constant(ZEND_STRS("XCACHE_MODULES"), ZEND_STRL(XCACHE_MODULES), CONST_CS | CONST_PERSISTENT, module_number TSRMLS_CC);
return 0;
}
/* }}} */
static xc_shm_t *xc_cache_destroy(xc_cache_t **caches, xc_hash_t *hcache) /* {{{ */
{
int i;
xc_cache_t *cache;
xc_shm_t *shm;
if (!caches) {
return NULL;
}
shm = NULL;
for (i = 0; i < hcache->size; i ++) {
cache = caches[i];
if (cache) {
if (cache->lck) {
xc_lock_destroy(cache->lck);
}
/* do NOT free
if (cache->entries) {
cache->mem->handlers->free(cache->mem, cache->entries);
}
cache->mem->handlers->free(cache->mem, cache);
*/
shm = cache->shm;
shm->handlers->memdestroy(cache->mem);
}
}
free(caches);
return shm;
}
/* }}} */
static xc_cache_t **xc_cache_init(xc_shm_t *shm, xc_hash_t *hcache, xc_hash_t *hentry, xc_shmsize_t shmsize) /* {{{ */
{
xc_cache_t **caches = NULL, *cache;
xc_mem_t *mem;
time_t now = time(NULL);
int i;
xc_memsize_t memsize;
memsize = shmsize / hcache->size;
/* Don't let it break out of mem after ALIGNed
* This is important for
* Simply loop until it fit our need
*/
while (ALIGN(memsize) * hcache->size > shmsize && ALIGN(memsize) != memsize) {
if (memsize < ALIGN(1)) {
CHECK(NULL, "cache too small");
}
memsize --;
}
CHECK(caches = calloc(hcache->size, sizeof(xc_cache_t *)), "caches OOM");
for (i = 0; i < hcache->size; i ++) {
CHECK(mem = shm->handlers->meminit(shm, memsize), "Failed init memory allocator");
CHECK(cache = mem->handlers->calloc(mem, 1, sizeof(xc_cache_t)), "cache OOM");
CHECK(cache->entries = mem->handlers->calloc(mem, hentry->size, sizeof(xc_entry_t*)), "entries OOM");
CHECK(cache->lck = xc_lock_init(NULL), "can't create lock");
cache->hcache = hcache;
cache->hentry = hentry;
cache->shm = shm;
cache->mem = mem;
cache->cacheid = i;
cache->last_gc_deletes = now;
cache->last_gc_expires = now;
caches[i] = cache;
}
return caches;
err:
if (caches) {
xc_cache_destroy(caches, hcache);
}
return NULL;
}
/* }}} */
static void xc_destroy() /* {{{ */
{
xc_shm_t *shm = NULL;
if (old_compile_file) {
zend_compile_file = old_compile_file;
old_compile_file = NULL;
}
if (origin_compile_file) {
zend_compile_file = origin_compile_file;
origin_compile_file = NULL;
}
if (xc_php_caches) {
shm = xc_cache_destroy(xc_php_caches, &xc_php_hcache);
xc_php_caches = NULL;
}
if (xc_var_caches) {
shm = xc_cache_destroy(xc_var_caches, &xc_var_hcache);
xc_var_caches = NULL;
}
if (shm) {
xc_shm_destroy(shm);
}
xc_initized = 0;
}
/* }}} */
static int xc_init(int module_number TSRMLS_DC) /* {{{ */
{
xc_shm_t *shm;
xc_shmsize_t shmsize = ALIGN(xc_php_size) + ALIGN(xc_var_size);
xc_php_caches = xc_var_caches = NULL;
shm = NULL;
if (shmsize < (size_t) xc_php_size || shmsize < (size_t) xc_var_size) {
zend_error(E_ERROR, "XCache: neither xcache.size nor xcache.var_size can be negative");
goto err;
}
if (xc_php_size || xc_var_size) {
CHECK(shm = xc_shm_init(xc_shm_scheme, shmsize, xc_readonly_protection, xc_mmap_path, NULL), "Cannot create shm");
if (!shm->handlers->can_readonly(shm)) {
xc_readonly_protection = 0;
}
if (xc_php_size) {
old_compile_file = zend_compile_file;
zend_compile_file = xc_compile_file;
CHECK(xc_php_caches = xc_cache_init(shm, &xc_php_hcache, &xc_php_hentry, xc_php_size), "failed init opcode cache");
}
if (xc_var_size) {
CHECK(xc_var_caches = xc_cache_init(shm, &xc_var_hcache, &xc_var_hentry, xc_var_size), "failed init variable cache");
}
}
return SUCCESS;
err:
xc_destroy();
if (xc_php_caches || xc_var_caches) {
/* shm destroied in xc_destroy() */
}
else if (shm) {
xc_shm_destroy(shm);
}
return 0;
}
/* }}} */
static void xc_request_init(TSRMLS_D) /* {{{ */
{
int i;
if (!XG(internal_table_copied)) {
zend_function tmp_func;
xc_cest_t tmp_cest;
#ifdef HAVE_XCACHE_CONSTANT
zend_hash_destroy(&XG(internal_constant_table));
#endif
zend_hash_destroy(&XG(internal_function_table));
zend_hash_destroy(&XG(internal_class_table));
#ifdef HAVE_XCACHE_CONSTANT
zend_hash_init_ex(&XG(internal_constant_table), 20, NULL, (dtor_func_t) xc_zend_constant_dtor, 1, 0);
#endif
zend_hash_init_ex(&XG(internal_function_table), 100, NULL, NULL, 1, 0);
zend_hash_init_ex(&XG(internal_class_table), 10, NULL, NULL, 1, 0);
#ifdef HAVE_XCACHE_CONSTANT
xc_copy_internal_zend_constants(&XG(internal_constant_table), EG(zend_constants));
#endif
zend_hash_copy(&XG(internal_function_table), CG(function_table), NULL, &tmp_func, sizeof(tmp_func));
zend_hash_copy(&XG(internal_class_table), CG(class_table), NULL, &tmp_cest, sizeof(tmp_cest));
XG(internal_table_copied) = 1;
}
if (xc_php_caches && !XG(php_holds)) {
XG(php_holds) = calloc(xc_php_hcache.size, sizeof(xc_stack_t));
for (i = 0; i < xc_php_hcache.size; i ++) {
xc_stack_init(&XG(php_holds[i]));
}
}
if (xc_var_caches && !XG(var_holds)) {
XG(var_holds) = calloc(xc_var_hcache.size, sizeof(xc_stack_t));
for (i = 0; i < xc_var_hcache.size; i ++) {
xc_stack_init(&XG(var_holds[i]));
}
}
#ifdef ZEND_ENGINE_2
zend_hash_init(&XG(gc_op_arrays), 32, NULL, xc_gc_op_array, 0);
#endif
#if PHP_API_VERSION <= 20041225
XG(request_time) = time(NULL);
#else
XG(request_time) = sapi_get_request_time(TSRMLS_C);
#endif
#ifdef HAVE_XCACHE_COVERAGER
xc_coverager_request_init(TSRMLS_C);
#endif
}
/* }}} */
static void xc_request_shutdown(TSRMLS_D) /* {{{ */
{
xc_entry_unholds(TSRMLS_C);
#ifdef ZEND_ENGINE_2
zend_hash_destroy(&XG(gc_op_arrays));
#endif
xc_gc_expires_php(TSRMLS_C);
xc_gc_expires_var(TSRMLS_C);
xc_gc_deletes(TSRMLS_C);
#ifdef HAVE_XCACHE_COVERAGER
xc_coverager_request_shutdown(TSRMLS_C);
#endif
}
/* }}} */
/* {{{ PHP_GINIT_FUNCTION(xcache) */
static
#ifdef PHP_GINIT_FUNCTION
PHP_GINIT_FUNCTION(xcache)
#else
void xc_init_globals(zend_xcache_globals* xcache_globals TSRMLS_DC)
#endif
{
memset(xcache_globals, 0, sizeof(zend_xcache_globals));
#ifdef HAVE_XCACHE_CONSTANT
zend_hash_init_ex(&xcache_globals->internal_constant_table, 1, NULL, (dtor_func_t) xc_zend_constant_dtor, 1, 0);
#endif
zend_hash_init_ex(&xcache_globals->internal_function_table, 1, NULL, NULL, 1, 0);
zend_hash_init_ex(&xcache_globals->internal_class_table, 1, NULL, NULL, 1, 0);
}
/* }}} */
/* {{{ PHP_GSHUTDOWN_FUNCTION(xcache) */
static
#ifdef PHP_GSHUTDOWN_FUNCTION
PHP_GSHUTDOWN_FUNCTION(xcache)
#else
void xc_shutdown_globals(zend_xcache_globals* xcache_globals TSRMLS_DC)
#endif
{
int i;
if (xcache_globals->php_holds != NULL) {
for (i = 0; i < xc_php_hcache.size; i ++) {
xc_stack_destroy(&xcache_globals->php_holds[i]);
}
free(xcache_globals->php_holds);
xcache_globals->php_holds = NULL;
}
if (xcache_globals->var_holds != NULL) {
for (i = 0; i < xc_var_hcache.size; i ++) {
xc_stack_destroy(&xcache_globals->var_holds[i]);
}
free(xcache_globals->var_holds);
xcache_globals->var_holds = NULL;
}
if (xcache_globals->internal_table_copied) {
#ifdef HAVE_XCACHE_CONSTANT
zend_hash_destroy(&xcache_globals->internal_constant_table);
#endif
zend_hash_destroy(&xcache_globals->internal_function_table);
zend_hash_destroy(&xcache_globals->internal_class_table);
}
}
/* }}} */
/* user functions */
static int xcache_admin_auth_check(TSRMLS_D) /* {{{ */
{
zval **server = NULL;
zval **user = NULL;
zval **pass = NULL;
char *admin_user = NULL;
char *admin_pass = NULL;
HashTable *ht;
/* auth disabled, nothing to do.. */
if (!XG(auth_enabled)) {
return 1;
}
if (cfg_get_string("xcache.admin.user", &admin_user) == FAILURE || !admin_user[0]) {
admin_user = NULL;
}
if (cfg_get_string("xcache.admin.pass", &admin_pass) == FAILURE || !admin_pass[0]) {
admin_pass = NULL;
}
if (admin_user == NULL || admin_pass == NULL) {
php_error_docref(XCACHE_WIKI_URL "/InstallAdministration" TSRMLS_CC, E_ERROR,
"xcache.admin.user and/or xcache.admin.pass settings is not configured."
" Make sure you've modified the correct php ini file for your php used in webserver.");
zend_bailout();
}
if (strlen(admin_pass) != 32) {
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));
zend_bailout();
}
#ifdef ZEND_ENGINE_2_1
zend_is_auto_global("_SERVER", sizeof("_SERVER") - 1 TSRMLS_CC);
#endif
if (zend_hash_find(&EG(symbol_table), "_SERVER", sizeof("_SERVER"), (void **) &server) != SUCCESS || Z_TYPE_PP(server) != IS_ARRAY) {
php_error_docref(NULL TSRMLS_CC, E_ERROR, "_SERVER is corrupted");
zend_bailout();
}
ht = HASH_OF((*server));
if (zend_hash_find(ht, "PHP_AUTH_USER", sizeof("PHP_AUTH_USER"), (void **) &user) == FAILURE) {
user = NULL;
}
else if (Z_TYPE_PP(user) != IS_STRING) {
user = NULL;
}
if (zend_hash_find(ht, "PHP_AUTH_PW", sizeof("PHP_AUTH_PW"), (void **) &pass) == FAILURE) {
pass = NULL;
}
else if (Z_TYPE_PP(pass) != IS_STRING) {
pass = NULL;
}
if (user != NULL && pass != NULL && strcmp(admin_user, Z_STRVAL_PP(user)) == 0) {
PHP_MD5_CTX context;
char md5str[33];
unsigned char digest[16];
PHP_MD5Init(&context);
PHP_MD5Update(&context, (unsigned char *) Z_STRVAL_PP(pass), Z_STRLEN_PP(pass));
PHP_MD5Final(digest, &context);
md5str[0] = '\0';
make_digest(md5str, digest);
if (strcmp(admin_pass, md5str) == 0) {
return 1;
}
}
#define STR "HTTP/1.0 401 Unauthorized"
sapi_add_header_ex(STR, sizeof(STR) - 1, 1, 1 TSRMLS_CC);
#undef STR
#define STR "WWW-authenticate: Basic Realm=\"XCache Administration\""
sapi_add_header_ex(STR, sizeof(STR) - 1, 1, 1 TSRMLS_CC);
#undef STR
#define STR "Content-type: text/html; charset=UTF-8"
sapi_add_header_ex(STR, sizeof(STR) - 1, 1, 1 TSRMLS_CC);
#undef STR
ZEND_PUTS("<html>\n");
ZEND_PUTS("<head><title>XCache Authentication Failed</title></head>\n");
ZEND_PUTS("<body>\n");
ZEND_PUTS("<h1>XCache Authentication Failed</h1>\n");
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");
ZEND_PUTS("<ul>\n");
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");
ZEND_PUTS("<li>Make sure the md5 password is generated correctly. You may use <a href=\"mkpassword.php\">mkpassword.php</a></li>\n");
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");
ZEND_PUTS("</ul>\n");
ZEND_PUTS("Check <a href=\"" XCACHE_WIKI_URL "/InstallAdministration\">XCache wiki page</a> for more information.\n");
ZEND_PUTS("</body>\n");
ZEND_PUTS("</html>\n");
zend_bailout();
return 0;
}
/* }}} */
/* {{{ xcache_admin_operate */
typedef enum { XC_OP_COUNT, XC_OP_INFO, XC_OP_LIST, XC_OP_CLEAR } xcache_op_type;
static void xcache_admin_operate(xcache_op_type optype, INTERNAL_FUNCTION_PARAMETERS)
{
long type;
int size;
xc_cache_t **caches, *cache;
long id = 0;
xcache_admin_auth_check(TSRMLS_C);
if (!xc_initized) {
RETURN_NULL();
}
if (optype == XC_OP_COUNT) {
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "l", &type) == FAILURE) {
return;
}
}
else if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "ll", &type, &id) == FAILURE) {
return;
}
switch (type) {
case XC_TYPE_PHP:
size = xc_php_hcache.size;
caches = xc_php_caches;
break;
case XC_TYPE_VAR:
size = xc_var_hcache.size;
caches = xc_var_caches;
break;
default:
php_error_docref(NULL TSRMLS_CC, E_WARNING, "Unknown type %ld", type);
RETURN_FALSE;
}
switch (optype) {
case XC_OP_COUNT:
RETURN_LONG(size)
break;
case XC_OP_INFO:
case XC_OP_LIST:
if (id < 0 || id >= size) {
php_error_docref(NULL TSRMLS_CC, E_WARNING, "Cache not exists");
RETURN_FALSE;
}
array_init(return_value);
cache = caches[id];
ENTER_LOCK(cache) {
if (optype == XC_OP_INFO) {
xc_fillinfo_dmz(type, cache, return_value TSRMLS_CC);
}
else {
xc_filllist_dmz(cache, return_value TSRMLS_CC);
}
} LEAVE_LOCK(cache);
break;
case XC_OP_CLEAR:
{
xc_entry_t *e, *next;
int i, c;
if (id < 0 || id >= size) {
php_error_docref(NULL TSRMLS_CC, E_WARNING, "Cache not exists");
RETURN_FALSE;
}
cache = caches[id];
ENTER_LOCK(cache) {
for (i = 0, c = cache->hentry->size; i < c; i ++) {
for (e = cache->entries[i]; e; e = next) {
next = e->next;
xc_entry_remove_dmz(e TSRMLS_CC);
}
cache->entries[i] = NULL;
}
} LEAVE_LOCK(cache);
xc_gc_deletes(TSRMLS_C);
}
break;
default:
assert(0);
}
}
/* }}} */
/* {{{ proto int xcache_count(int type)
Return count of cache on specified cache type */
PHP_FUNCTION(xcache_count)
{
xcache_admin_operate(XC_OP_COUNT, INTERNAL_FUNCTION_PARAM_PASSTHRU);
}
/* }}} */
/* {{{ proto array xcache_info(int type, int id)
Get cache info by id on specified cache type */
PHP_FUNCTION(xcache_info)
{
xcache_admin_operate(XC_OP_INFO, INTERNAL_FUNCTION_PARAM_PASSTHRU);
}
/* }}} */
/* {{{ proto array xcache_list(int type, int id)
Get cache entries list by id on specified cache type */
PHP_FUNCTION(xcache_list)
{
xcache_admin_operate(XC_OP_LIST, INTERNAL_FUNCTION_PARAM_PASSTHRU);
}
/* }}} */
/* {{{ proto array xcache_clear_cache(int type, int id)
Clear cache by id on specified cache type */
PHP_FUNCTION(xcache_clear_cache)
{
xcache_admin_operate(XC_OP_CLEAR, INTERNAL_FUNCTION_PARAM_PASSTHRU);
}
/* }}} */
#define VAR_DISABLED_WARNING() do { \
php_error_docref(NULL TSRMLS_CC, E_WARNING, "xcache.var_size is either 0 or too small to enable var data caching"); \
} while (0)
static int xc_entry_init_key_var(xc_entry_t *xce, zval *name TSRMLS_DC) /* {{{ */
{
xc_hash_value_t hv;
int cacheid;
switch (Z_TYPE_P(name)) {
#ifdef IS_UNICODE
case IS_UNICODE:
#endif
case IS_STRING:
break;
default:
#ifdef IS_UNICODE
convert_to_unicode(name);
#else
convert_to_string(name);
#endif
}
#ifdef IS_UNICODE
xce->name_type = name->type;
#endif
xce->name = name->value;
hv = xc_entry_hash_var(xce TSRMLS_CC);
cacheid = (hv & xc_var_hcache.mask);
xce->cache = xc_var_caches[cacheid];
hv >>= xc_var_hcache.bits;
xce->hvalue = (hv & xc_var_hentry.mask);
xce->type = XC_TYPE_VAR;
return SUCCESS;
}
/* }}} */
/* {{{ proto mixed xcache_get(string name)
Get cached data by specified name */
PHP_FUNCTION(xcache_get)
{
xc_entry_t xce, *stored_xce;
xc_entry_data_var_t var;
zval *name;
int found = 0;
if (!xc_var_caches) {
VAR_DISABLED_WARNING();
RETURN_NULL();
}
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "z", &name) == FAILURE) {
return;
}
xce.data.var = &var;
xc_entry_init_key_var(&xce, name TSRMLS_CC);
ENTER_LOCK(xce.cache) {
stored_xce = xc_entry_find_dmz(&xce TSRMLS_CC);
if (stored_xce) {
if (!VAR_ENTRY_EXPIRED(stored_xce)) {
found = 1;
xc_processor_restore_zval(return_value, stored_xce->data.var->value, stored_xce->have_references TSRMLS_CC);
/* return */
break;
}
else {
xc_entry_remove_dmz(stored_xce TSRMLS_CC);
}
}
RETVAL_NULL();
} LEAVE_LOCK(xce.cache);
if (found) {
xc_cache_hit_dmz(xce.cache TSRMLS_CC);
}
else {
xce.cache->misses ++;
}
}
/* }}} */
/* {{{ proto bool xcache_set(string name, mixed value [, int ttl])
Store data to cache by specified name */
PHP_FUNCTION(xcache_set)
{
xc_entry_t xce, *stored_xce;
xc_entry_data_var_t var;
zval *name;
zval *value;
if (!xc_var_caches) {
VAR_DISABLED_WARNING();
RETURN_NULL();
}
xce.ttl = XG(var_ttl);
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "zz|l", &name, &value, &xce.ttl) == FAILURE) {
return;
}
/* max ttl */
if (xc_var_maxttl && (!xce.ttl || xce.ttl > xc_var_maxttl)) {
xce.ttl = xc_var_maxttl;
}
xce.data.var = &var;
xc_entry_init_key_var(&xce, name TSRMLS_CC);
ENTER_LOCK(xce.cache) {
stored_xce = xc_entry_find_dmz(&xce TSRMLS_CC);
if (stored_xce) {
xc_entry_remove_dmz(stored_xce TSRMLS_CC);
}
var.value = value;
RETVAL_BOOL(xc_entry_store_dmz(&xce TSRMLS_CC) != NULL ? 1 : 0);
} LEAVE_LOCK(xce.cache);
}
/* }}} */
/* {{{ proto bool xcache_isset(string name)
Check if an entry exists in cache by specified name */
PHP_FUNCTION(xcache_isset)
{
xc_entry_t xce, *stored_xce;
xc_entry_data_var_t var;
zval *name;
int found = 0;
if (!xc_var_caches) {
VAR_DISABLED_WARNING();
RETURN_FALSE;
}
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "z", &name) == FAILURE) {
return;
}
xce.data.var = &var;
xc_entry_init_key_var(&xce, name TSRMLS_CC);
ENTER_LOCK(xce.cache) {
stored_xce = xc_entry_find_dmz(&xce TSRMLS_CC);
if (stored_xce) {
if (!VAR_ENTRY_EXPIRED(stored_xce)) {
found = 1;
RETVAL_TRUE;
/* return */
break;
}
else {
xc_entry_remove_dmz(stored_xce TSRMLS_CC);
}
}
RETVAL_FALSE;
} LEAVE_LOCK(xce.cache);
if (found) {
xc_cache_hit_dmz(xce.cache TSRMLS_CC);
}
else {
xce.cache->misses ++;
}
}
/* }}} */
/* {{{ proto bool xcache_unset(string name)
Unset existing data in cache by specified name */
PHP_FUNCTION(xcache_unset)
{
xc_entry_t xce, *stored_xce;
xc_entry_data_var_t var;
zval *name;
if (!xc_var_caches) {
VAR_DISABLED_WARNING();
RETURN_FALSE;
}
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "z", &name) == FAILURE) {
return;
}
xce.data.var = &var;
xc_entry_init_key_var(&xce, name TSRMLS_CC);
ENTER_LOCK(xce.cache) {
stored_xce = xc_entry_find_dmz(&xce TSRMLS_CC);
if (stored_xce) {
xc_entry_remove_dmz(stored_xce TSRMLS_CC);
RETVAL_TRUE;
}
else {
RETVAL_FALSE;
}
} LEAVE_LOCK(xce.cache);
}
/* }}} */
static inline void xc_var_inc_dec(int inc, INTERNAL_FUNCTION_PARAMETERS) /* {{{ */
{
xc_entry_t xce, *stored_xce;
xc_entry_data_var_t var, *stored_var;
zval *name;
long count = 1;
long value = 0;
zval oldzval;
if (!xc_var_caches) {
VAR_DISABLED_WARNING();
RETURN_NULL();
}
xce.ttl = XG(var_ttl);
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "z|ll", &name, &count, &xce.ttl) == FAILURE) {
return;
}
/* max ttl */
if (xc_var_maxttl && (!xce.ttl || xce.ttl > xc_var_maxttl)) {
xce.ttl = xc_var_maxttl;
}
xce.data.var = &var;
xc_entry_init_key_var(&xce, name TSRMLS_CC);
ENTER_LOCK(xce.cache) {
stored_xce = xc_entry_find_dmz(&xce TSRMLS_CC);
if (stored_xce) {
TRACE("incdec: gotxce %s", xce.name.str.val);
/* timeout */
if (VAR_ENTRY_EXPIRED(stored_xce)) {
TRACE("%s", "incdec: expired");
xc_entry_remove_dmz(stored_xce TSRMLS_CC);
stored_xce = NULL;
}
else {
/* do it in place */
stored_var = stored_xce->data.var;
if (Z_TYPE_P(stored_var->value) == IS_LONG) {
zval *zv;
stored_xce->ctime = XG(request_time);
stored_xce->ttl = xce.ttl;
TRACE("%s", "incdec: islong");
value = Z_LVAL_P(stored_var->value);
value += (inc == 1 ? count : - count);
RETVAL_LONG(value);
zv = (zval *) xce.cache->shm->handlers->to_readwrite(xce.cache->shm, (char *) stored_var->value);
Z_LVAL_P(zv) = value;
break; /* leave lock */
}
else {
TRACE("%s", "incdec: notlong");
xc_processor_restore_zval(&oldzval, stored_xce->data.var->value, stored_xce->have_references TSRMLS_CC);
convert_to_long(&oldzval);
value = Z_LVAL(oldzval);
zval_dtor(&oldzval);
}
}
}
else {
TRACE("incdec: %s not found", xce.name.str.val);
}
value += (inc == 1 ? count : - count);
RETVAL_LONG(value);
var.value = return_value;
if (stored_xce) {
xce.atime = stored_xce->atime;
xce.ctime = stored_xce->ctime;
xce.hits = stored_xce->hits;
xc_entry_remove_dmz(stored_xce TSRMLS_CC);
}
xc_entry_store_dmz(&xce TSRMLS_CC);
} LEAVE_LOCK(xce.cache);
}
/* }}} */
/* {{{ proto int xcache_inc(string name [, int value [, int ttl]])
Increase an int counter in cache by specified name, create it if not exists */
PHP_FUNCTION(xcache_inc)
{
xc_var_inc_dec(1, INTERNAL_FUNCTION_PARAM_PASSTHRU);
}
/* }}} */
/* {{{ proto int xcache_dec(string name [, int value [, int ttl]])
Decrease an int counter in cache by specified name, create it if not exists */
PHP_FUNCTION(xcache_dec)
{
xc_var_inc_dec(-1, INTERNAL_FUNCTION_PARAM_PASSTHRU);
}
/* }}} */
#ifdef HAVE_XCACHE_DPRINT
/* {{{ proto bool xcache_dprint(mixed value)
Prints variable (or value) internal struct (debug only) */
PHP_FUNCTION(xcache_dprint)
{
zval *value;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "z", &value) == FAILURE) {
return;
}
xc_dprint_zval(value, 0 TSRMLS_CC);
}
/* }}} */
#endif
/* {{{ proto string xcache_asm(string filename)
*/
#ifdef HAVE_XCACHE_ASSEMBLER
PHP_FUNCTION(xcache_asm)
{
}
#endif
/* }}} */
#ifdef HAVE_XCACHE_DISASSEMBLER
/* {{{ proto array xcache_dasm_file(string filename)
Disassemble file into opcode array by filename */
PHP_FUNCTION(xcache_dasm_file)
{
char *filename;
int filename_len;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "s", &filename, &filename_len) == FAILURE) {
return;
}
if (!filename_len) RETURN_FALSE;
xc_dasm_file(return_value, filename TSRMLS_CC);
}
/* }}} */
/* {{{ proto array xcache_dasm_string(string code)
Disassemble php code into opcode array */
PHP_FUNCTION(xcache_dasm_string)
{
zval *code;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "z", &code) == FAILURE) {
return;
}
xc_dasm_string(return_value, code TSRMLS_CC);
}
/* }}} */
#endif
/* {{{ proto string xcache_encode(string filename)
Encode php file into XCache opcode encoded format */
#ifdef HAVE_XCACHE_ENCODER
PHP_FUNCTION(xcache_encode)
{
}
#endif
/* }}} */
/* {{{ proto bool xcache_decode_file(string filename)
Decode(load) opcode from XCache encoded format file */
#ifdef HAVE_XCACHE_DECODER
PHP_FUNCTION(xcache_decode_file)
{
}
#endif
/* }}} */
/* {{{ proto bool xcache_decode_string(string data)
Decode(load) opcode from XCache encoded format data */
#ifdef HAVE_XCACHE_DECODER
PHP_FUNCTION(xcache_decode_string)
{
}
#endif
/* }}} */
/* {{{ xc_call_getter */
typedef const char *(xc_name_getter_t)(zend_uchar type);
static void xc_call_getter(xc_name_getter_t getter, int count, INTERNAL_FUNCTION_PARAMETERS)
{
long spec;
const char *name;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "l", &spec) == FAILURE) {
return;
}
if (spec >= 0 && spec < count) {
name = getter((zend_uchar) spec);
if (name) {
/* RETURN_STRING */
int len = strlen(name);
return_value->value.str.len = len;
return_value->value.str.val = estrndup(name, len);
return_value->type = IS_STRING;
return;
}
}
RETURN_NULL();
}
/* }}} */
/* {{{ proto string xcache_get_op_type(int op_type) */
PHP_FUNCTION(xcache_get_op_type)
{
xc_call_getter(xc_get_op_type, xc_get_op_type_count(), INTERNAL_FUNCTION_PARAM_PASSTHRU);
}
/* }}} */
/* {{{ proto string xcache_get_data_type(int type) */
PHP_FUNCTION(xcache_get_data_type)
{
xc_call_getter(xc_get_data_type, xc_get_data_type_count(), INTERNAL_FUNCTION_PARAM_PASSTHRU);
}
/* }}} */
/* {{{ proto string xcache_get_opcode(int opcode) */
PHP_FUNCTION(xcache_get_opcode)
{
xc_call_getter(xc_get_opcode, xc_get_opcode_count(), INTERNAL_FUNCTION_PARAM_PASSTHRU);
}
/* }}} */
/* {{{ proto string xcache_get_op_spec(int op_type) */
PHP_FUNCTION(xcache_get_op_spec)
{
xc_call_getter(xc_get_op_spec, xc_get_op_spec_count(), INTERNAL_FUNCTION_PARAM_PASSTHRU);
}
/* }}} */
#ifdef HAVE_XCACHE_OPCODE_SPEC_DEF
/* {{{ proto string xcache_get_opcode_spec(int opcode) */
PHP_FUNCTION(xcache_get_opcode_spec)
{
long spec;
const xc_opcode_spec_t *opspec;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "l", &spec) == FAILURE) {
return;
}
if ((zend_uchar) spec <= xc_get_opcode_spec_count()) {
opspec = xc_get_opcode_spec((zend_uchar) spec);
if (opspec) {
array_init(return_value);
add_assoc_long_ex(return_value, ZEND_STRS("ext"), opspec->ext);
add_assoc_long_ex(return_value, ZEND_STRS("op1"), opspec->op1);
add_assoc_long_ex(return_value, ZEND_STRS("op2"), opspec->op2);
add_assoc_long_ex(return_value, ZEND_STRS("res"), opspec->res);
return;
}
}
RETURN_NULL();
}
/* }}} */
#endif
/* {{{ proto mixed xcache_get_special_value(zval value) */
PHP_FUNCTION(xcache_get_special_value)
{
zval *value;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "z", &value) == FAILURE) {
return;
}
if (value->type == IS_CONSTANT) {
*return_value = *value;
zval_copy_ctor(return_value);
return_value->type = UNISW(IS_STRING, UG(unicode) ? IS_UNICODE : IS_STRING);
return;
}
if (value->type == IS_CONSTANT_ARRAY) {
*return_value = *value;
zval_copy_ctor(return_value);
return_value->type = IS_ARRAY;
return;
}
RETURN_NULL();
}
/* }}} */
/* {{{ proto string xcache_coredump(int op_type) */
PHP_FUNCTION(xcache_coredump)
{
if (xc_test) {
raise(SIGSEGV);
}
else {
php_error_docref(NULL TSRMLS_CC, E_WARNING, "xcache.test must be enabled to test xcache_coredump()");
}
}
/* }}} */
/* {{{ proto string xcache_is_autoglobal(string name) */
PHP_FUNCTION(xcache_is_autoglobal)
{
char *name;
int name_len;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "s", &name, &name_len) == FAILURE) {
return;
}
RETURN_BOOL(zend_hash_exists(CG(auto_globals), name, name_len + 1));
}
/* }}} */
static function_entry xcache_functions[] = /* {{{ */
{
PHP_FE(xcache_count, NULL)
PHP_FE(xcache_info, NULL)
PHP_FE(xcache_list, NULL)
PHP_FE(xcache_clear_cache, NULL)
PHP_FE(xcache_coredump, NULL)
#ifdef HAVE_XCACHE_ASSEMBLER
PHP_FE(xcache_asm, NULL)
#endif
#ifdef HAVE_XCACHE_DISASSEMBLER
PHP_FE(xcache_dasm_file, NULL)
PHP_FE(xcache_dasm_string, NULL)
#endif
#ifdef HAVE_XCACHE_ENCODER
PHP_FE(xcache_encode, NULL)
#endif
#ifdef HAVE_XCACHE_DECODER
PHP_FE(xcache_decode_file, NULL)
PHP_FE(xcache_decode_string, NULL)
#endif
#ifdef HAVE_XCACHE_COVERAGER
PHP_FE(xcache_coverager_decode, NULL)
PHP_FE(xcache_coverager_start, NULL)
PHP_FE(xcache_coverager_stop, NULL)
PHP_FE(xcache_coverager_get, NULL)
#endif
PHP_FE(xcache_get_special_value, NULL)
PHP_FE(xcache_get_op_type, NULL)
PHP_FE(xcache_get_data_type, NULL)
PHP_FE(xcache_get_opcode, NULL)
#ifdef HAVE_XCACHE_OPCODE_SPEC_DEF
PHP_FE(xcache_get_opcode_spec, NULL)
#endif
PHP_FE(xcache_is_autoglobal, NULL)
PHP_FE(xcache_inc, NULL)
PHP_FE(xcache_dec, NULL)
PHP_FE(xcache_get, NULL)
PHP_FE(xcache_set, NULL)
PHP_FE(xcache_isset, NULL)
PHP_FE(xcache_unset, NULL)
#ifdef HAVE_XCACHE_DPRINT
PHP_FE(xcache_dprint, NULL)
#endif
{NULL, NULL, NULL}
};
/* }}} */
/* old signal handlers {{{ */
typedef void (*xc_sighandler_t)(int);
#define FOREACH_SIG(sig) static xc_sighandler_t old_##sig##_handler = NULL
#include "foreachcoresig.h"
#undef FOREACH_SIG
/* }}} */
static void xcache_signal_handler(int sig);
static void xcache_restore_signal_handler() /* {{{ */
{
#define FOREACH_SIG(sig) do { \
if (old_##sig##_handler != xcache_signal_handler) { \
signal(sig, old_##sig##_handler); \
} \
else { \
signal(sig, SIG_DFL); \
} \
} while (0)
#include "foreachcoresig.h"
#undef FOREACH_SIG
}
/* }}} */
static void xcache_init_signal_handler() /* {{{ */
{
#define FOREACH_SIG(sig) \
old_##sig##_handler = signal(sig, xcache_signal_handler)
#include "foreachcoresig.h"
#undef FOREACH_SIG
}
/* }}} */
static void xcache_signal_handler(int sig) /* {{{ */
{
xcache_restore_signal_handler();
if (xc_coredump_dir && xc_coredump_dir[0]) {
chdir(xc_coredump_dir);
}
raise(sig);
}
/* }}} */
/* {{{ PHP_INI */
static PHP_INI_MH(xc_OnUpdateDummy)
{
return SUCCESS;
}
static PHP_INI_MH(xc_OnUpdateULong)
{
zend_ulong *p = (zend_ulong *) mh_arg1;
*p = (zend_ulong) atoi(new_value);
return SUCCESS;
}
static PHP_INI_MH(xc_OnUpdateBool)
{
zend_bool *p = (zend_bool *)mh_arg1;
if (strncasecmp("on", new_value, sizeof("on"))) {
*p = (zend_bool) atoi(new_value);
}
else {
*p = (zend_bool) 1;
}
return SUCCESS;
}
static PHP_INI_MH(xc_OnUpdateString)
{
char **p = (char**)mh_arg1;
if (*p) {
pefree(*p, 1);
}
*p = pemalloc(strlen(new_value) + 1, 1);
strcpy(*p, new_value);
return SUCCESS;
}
#ifndef ZEND_ENGINE_2
#define OnUpdateLong OnUpdateInt
#endif
#ifdef ZEND_WIN32
# define DEFAULT_PATH "xcache"
#else
# define DEFAULT_PATH "/dev/zero"
#endif
PHP_INI_BEGIN()
PHP_INI_ENTRY1 ("xcache.mmap_path", DEFAULT_PATH, PHP_INI_SYSTEM, xc_OnUpdateString, &xc_mmap_path)
PHP_INI_ENTRY1 ("xcache.coredump_directory", "", PHP_INI_SYSTEM, xc_OnUpdateString, &xc_coredump_dir)
PHP_INI_ENTRY1 ("xcache.test", "0", PHP_INI_SYSTEM, xc_OnUpdateBool, &xc_test)
PHP_INI_ENTRY1 ("xcache.readonly_protection", "0", PHP_INI_SYSTEM, xc_OnUpdateBool, &xc_readonly_protection)
/* opcode cache */
PHP_INI_ENTRY1 ("xcache.size", "0", PHP_INI_SYSTEM, xc_OnUpdateDummy, NULL)
PHP_INI_ENTRY1 ("xcache.count", "1", PHP_INI_SYSTEM, xc_OnUpdateDummy, NULL)