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 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"
#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 zend_compile_file_t *old_compile_file;
static zend_llist_element *xc_llist_zend_extension;
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 void xc_php_add_dmz(xc_entry_data_php_t *php) /* {{{ */
{
xc_entry_data_php_t **head = &(php->cache->phps[php->hvalue]);
php->next = *head;
*head = php;
php->cache->phps_count ++;
}
/* }}} */
static xc_entry_data_php_t *xc_php_store_dmz(xc_entry_data_php_t *php TSRMLS_DC) /* {{{ */
{
xc_entry_data_php_t *stored_php;
php->hits = 0;
php->refcount = 0;
stored_php = xc_processor_store_xc_entry_data_php_t(php TSRMLS_CC);
if (stored_php) {
xc_php_add_dmz(stored_php);
return stored_php;
}
else {
php->cache->ooms ++;
return NULL;
}
}
/* }}} */
static xc_entry_data_php_t *xc_php_find_dmz(xc_entry_data_php_t *php TSRMLS_DC) /* {{{ */
{
xc_entry_data_php_t *p;
for (p = php->cache->phps[php->hvalue]; p; p = p->next) {
if (memcmp(php->md5, p->md5, sizeof(php->md5)) == 0) {
p->hits ++;
return p;
}
}
return NULL;
}
/* }}} */
static void xc_php_free_dmz(xc_entry_data_php_t *php) /* {{{ */
{
php->cache->mem->handlers->free(php->cache->mem, (xc_entry_data_php_t *)php);
}
/* }}} */
static void xc_php_addref_dmz(xc_entry_data_php_t *php) /* {{{ */
{
php->refcount ++;
}
/* }}} */
static void xc_php_release_dmz(xc_entry_data_php_t *php) /* {{{ */
{
if (-- php->refcount == 0) {
xc_entry_data_php_t **pp = &(php->cache->phps[php->hvalue]);
xc_entry_data_php_t *p;
for (p = *pp; p; pp = &(p->next), p = p->next) {
if (memcmp(php->md5, p->md5, sizeof(php->md5)) == 0) {
/* unlink */
*pp = p->next;
xc_php_free_dmz(php);
return;
}
}
assert(0);
}
}
/* }}} */
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 {
if (a->inode) {
return a->inode == b->inode
&& a->device == b->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_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_real_dmz(volatile xc_entry_t *xce) /* {{{ */
{
if (xce->type == XC_TYPE_PHP) {
xc_php_release_dmz(xce->data.php);
}
xce->cache->mem->handlers->free(xce->cache->mem, (xc_entry_t *)xce);
}
/* }}} */
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->mtime == xce->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) /* {{{ */
{
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
/* 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) {
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) {
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;
for (i = 0, c = xc_php_hcache.size; i < c; i ++) {
xc_gc_deletes_one(xc_php_caches[i] TSRMLS_CC);
}
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;
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("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(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);
assert(avail == handlers->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("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("size"), entry->size + php->size);
add_assoc_long_ex(ei, ZEND_STRS("phprefcount"), php->refcount);
add_assoc_long_ex(ei, ZEND_STRS("sourcesize"), php->sourcesize);
#ifdef HAVE_INODE
add_assoc_long_ex(ei, ZEND_STRS("device"), entry->device);
add_assoc_long_ex(ei, ZEND_STRS("inode"), entry->inode);
#endif
add_assoc_long_ex(ei, ZEND_STRS("mtime"), entry->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;
add_assoc_long_ex(ei, ZEND_STRS("size"), entry->size);
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
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 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 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
xc_install_class(xce->name.str.val, &ci->cest, ci->oplineno,
UNISW(0, ci->type), ci->key, ci->key_size TSRMLS_CC);
}
#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_find(CG(auto_globals), aginfo->type, aginfo->key, aginfo->key_len+1, (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
free_alloca(new_cest_ptrs);
#endif
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) /* {{{ */
{
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[MAXPATHLEN];
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 (snprintf(filepath, sizeof(filepath), "%s/%s", path, filename) >= MAXPATHLEN - 1) {
continue;
}
if (VCWD_STAT(filepath, pbuf) == 0) {
free_alloca(paths);
return SUCCESS;
}
}
free_alloca(paths);
return FAILURE;
}
/* }}} */
#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_S(s, l) HASH(zend_inline_hash_func(s, l))
#define HASH_STR_L(s, l) HASH_STR_S(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_USTR_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->inode) {
return HASH(xce->device + xce->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;
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:
if (XG(request_time) - pbuf->st_mtime < 2 && !xc_test) {
return FAILURE;
}
xce->mtime = pbuf->st_mtime;
#ifdef HAVE_INODE
xce->device = pbuf->st_dev;
xce->inode = pbuf->st_ino;
#endif
php->sourcesize = pbuf->st_size;
}
else { /* XG(inode) */
xce->mtime = 0;
#ifdef HAVE_INODE
xce->device = 0;
xce->inode = 0;
#endif
php->sourcesize = 0;
}