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/
You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
 
 
 
 
 
 

4147 lines
118 KiB

#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 "ext/standard/php_string.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 + (time_t) (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);
typedef enum { XC_TYPE_PHP, XC_TYPE_VAR } xc_entry_type_t;
/* }}} */
/* any function in *_unlocked is only safe be called within locked (single thread access) area */
static void xc_php_add_unlocked(xc_cache_t *cache, xc_entry_data_php_t *php) /* {{{ */
{
xc_entry_data_php_t **head = &(cache->phps[php->hvalue]);
php->next = *head;
*head = php;
cache->phps_count ++;
}
/* }}} */
static xc_entry_data_php_t *xc_php_store_unlocked(xc_cache_t *cache, 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(cache, php TSRMLS_CC);
if (stored_php) {
xc_php_add_unlocked(cache, stored_php);
return stored_php;
}
else {
cache->ooms ++;
return NULL;
}
}
/* }}} */
static xc_entry_data_php_t *xc_php_find_unlocked(xc_cache_t *cache, xc_entry_data_php_t *php TSRMLS_DC) /* {{{ */
{
xc_entry_data_php_t *p;
for (p = cache->phps[php->hvalue]; p; p = (xc_entry_data_php_t *) p->next) {
if (memcmp(&php->md5.digest, &p->md5.digest, sizeof(php->md5.digest)) == 0) {
p->hits ++;
return p;
}
}
return NULL;
}
/* }}} */
static void xc_php_free_unlocked(xc_cache_t *cache, xc_entry_data_php_t *php) /* {{{ */
{
cache->mem->handlers->free(cache->mem, (xc_entry_data_php_t *)php);
}
/* }}} */
static void xc_php_addref_unlocked(xc_entry_data_php_t *php) /* {{{ */
{
php->refcount ++;
}
/* }}} */
static void xc_php_release_unlocked(xc_cache_t *cache, xc_entry_data_php_t *php) /* {{{ */
{
if (-- php->refcount == 0) {
xc_entry_data_php_t **pp = &(cache->phps[php->hvalue]);
xc_entry_data_php_t *p;
for (p = *pp; p; pp = &(p->next), p = p->next) {
if (memcmp(&php->md5.digest, &p->md5.digest, sizeof(php->md5.digest)) == 0) {
/* unlink */
*pp = p->next;
xc_php_free_unlocked(cache, php);
return;
}
}
assert(0);
}
}
/* }}} */
static inline int xc_entry_equal_unlocked(xc_entry_type_t type, const xc_entry_t *entry1, const xc_entry_t *entry2) /* {{{ */
{
/* this function isn't required but can be in unlocked */
switch (type) {
case XC_TYPE_PHP:
#ifdef HAVE_INODE
{
const xc_entry_php_t *php_entry1 = (const xc_entry_php_t *) entry1;
const xc_entry_php_t *php_entry2 = (const xc_entry_php_t *) entry2;
if (php_entry1->file_inode) {
return php_entry1->file_inode == php_entry2->file_inode
&& php_entry1->file_device == php_entry2->file_device;
}
}
#endif
assert(IS_ABSOLUTE_PATH(entry1->name.str.val, entry1->name.str.len));
assert(IS_ABSOLUTE_PATH(entry2->name.str.val, entry2->name.str.len));
if (entry1->name.str.len != entry2->name.str.len) {
return 0;
}
return memcmp(entry1->name.str.val, entry2->name.str.val, entry1->name.str.len + 1) == 0;
case XC_TYPE_VAR:
#ifdef IS_UNICODE
if (entry1->name_type != entry2->name_type) {
return 0;
}
else if (entry1->name_type == IS_UNICODE) {
if (entry1->name.ustr.len != entry2->name.ustr.len) {
return 0;
}
return memcmp(entry1->name.ustr.val, entry2->name.ustr.val, (entry1->name.ustr.len + 1) * sizeof(UChar)) == 0;
}
else
#endif
{
if (entry1->name.str.len != entry2->name.str.len) {
return 0;
}
return memcmp(entry1->name.str.val, entry2->name.str.val, entry1->name.str.len + 1) == 0;
}
break;
default:
assert(0);
}
return 0;
}
/* }}} */
static inline int xc_entry_has_prefix_unlocked(xc_entry_type_t type, xc_entry_t *entry, zval *prefix) /* {{{ */
{
/* this function isn't required but can be in unlocked */
#ifdef IS_UNICODE
if (entry->name_type != prefix->type) {
return 0;
}
if (entry->name_type == IS_UNICODE) {
if (entry->name.ustr.len < Z_USTRLEN_P(prefix)) {
return 0;
}
return memcmp(entry->name.ustr.val, Z_USTRVAL_P(prefix), Z_USTRLEN_P(prefix) * sizeof(UChar)) == 0;
}
#endif
if (prefix->type != IS_STRING) {
return 0;
}
if (entry->name.str.len < Z_STRLEN_P(prefix)) {
return 0;
}
return memcmp(entry->name.str.val, Z_STRVAL_P(prefix), Z_STRLEN_P(prefix)) == 0;
}
/* }}} */
static void xc_entry_add_unlocked(xc_cache_t *cache, xc_hash_value_t entryslotid, xc_entry_t *entry) /* {{{ */
{
xc_entry_t **head = &(cache->entries[entryslotid]);
entry->next = *head;
*head = entry;
cache->entries_count ++;
}
/* }}} */
static xc_entry_t *xc_entry_store_unlocked(xc_entry_type_t type, xc_cache_t *cache, xc_hash_value_t entryslotid, xc_entry_t *entry TSRMLS_DC) /* {{{ */
{
xc_entry_t *stored_entry;
entry->hits = 0;
entry->ctime = XG(request_time);
entry->atime = XG(request_time);
stored_entry = type == XC_TYPE_PHP
? (xc_entry_t *) xc_processor_store_xc_entry_php_t(cache, (xc_entry_php_t *) entry TSRMLS_CC)
: (xc_entry_t *) xc_processor_store_xc_entry_var_t(cache, (xc_entry_var_t *) entry TSRMLS_CC);
if (stored_entry) {
xc_entry_add_unlocked(cache, entryslotid, stored_entry);
++cache->updates;
return stored_entry;
}
else {
cache->ooms ++;
return NULL;
}
}
/* }}} */
static xc_entry_php_t *xc_entry_php_store_unlocked(xc_cache_t *cache, xc_hash_value_t entryslotid, xc_entry_php_t *entry_php TSRMLS_DC) /* {{{ */
{
return (xc_entry_php_t *) xc_entry_store_unlocked(XC_TYPE_PHP, cache, entryslotid, (xc_entry_t *) entry_php TSRMLS_CC);
}
/* }}} */
static xc_entry_var_t *xc_entry_var_store_unlocked(xc_cache_t *cache, xc_hash_value_t entryslotid, xc_entry_var_t *entry_var TSRMLS_DC) /* {{{ */
{
return (xc_entry_var_t *) xc_entry_store_unlocked(XC_TYPE_VAR, cache, entryslotid, (xc_entry_t *) entry_var TSRMLS_CC);
}
/* }}} */
static void xc_entry_free_real_unlocked(xc_entry_type_t type, xc_cache_t *cache, volatile xc_entry_t *entry) /* {{{ */
{
if (type == XC_TYPE_PHP) {
xc_php_release_unlocked(cache, ((xc_entry_php_t *) entry)->php);
}
cache->mem->handlers->free(cache->mem, (xc_entry_t *)entry);
}
/* }}} */
static void xc_entry_free_unlocked(xc_entry_type_t type, xc_cache_t *cache, xc_entry_t *entry TSRMLS_DC) /* {{{ */
{
cache->entries_count --;
if ((type == XC_TYPE_PHP ? ((xc_entry_php_t *) entry)->refcount : 0) == 0) {
xc_entry_free_real_unlocked(type, cache, entry);
}
else {
entry->next = cache->deletes;
cache->deletes = entry;
entry->dtime = XG(request_time);
cache->deletes_count ++;
}
return;
}
/* }}} */
static void xc_entry_remove_unlocked(xc_entry_type_t type, xc_cache_t *cache, xc_hash_value_t entryslotid, xc_entry_t *entry TSRMLS_DC) /* {{{ */
{
xc_entry_t **pp = &(cache->entries[entryslotid]);
xc_entry_t *p;
for (p = *pp; p; pp = &(p->next), p = p->next) {
if (xc_entry_equal_unlocked(type, entry, p)) {
/* unlink */
*pp = p->next;
xc_entry_free_unlocked(type, cache, entry TSRMLS_CC);
return;
}
}
assert(0);
}
/* }}} */
static xc_entry_t *xc_entry_find_unlocked(xc_entry_type_t type, xc_cache_t *cache, xc_hash_value_t entryslotid, xc_entry_t *entry TSRMLS_DC) /* {{{ */
{
xc_entry_t *p;
for (p = cache->entries[entryslotid]; p; p = p->next) {
if (xc_entry_equal_unlocked(type, entry, p)) {
zend_bool fresh;
switch (type) {
case XC_TYPE_PHP:
{
xc_entry_php_t *p_php = (xc_entry_php_t *) p;
xc_entry_php_t *entry_php = (xc_entry_php_t *) entry;
fresh = p_php->file_mtime == entry_php->file_mtime && p_php->file_size == entry_php->file_size;
}
break;
case XC_TYPE_VAR:
{
fresh = !VAR_ENTRY_EXPIRED(p);
}
break;
default:
assert(0);
}
if (fresh) {
p->hits ++;
p->atime = XG(request_time);
return p;
}
xc_entry_remove_unlocked(type, cache, entryslotid, p TSRMLS_CC);
return NULL;
}
}
return NULL;
}
/* }}} */
static void xc_entry_hold_php_unlocked(xc_cache_t *cache, xc_entry_php_t *entry TSRMLS_DC) /* {{{ */
{
TRACE("hold %d:%s", entry->file_inode, entry->entry.name.str.val);
entry->refcount ++;
xc_stack_push(&XG(php_holds)[cache->cacheid], (void *)entry);
}
/* }}} */
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_unlocked(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) zend_bool name(xc_entry_t *entry TSRMLS_DC)
typedef XC_ENTRY_APPLY_FUNC((*cache_apply_unlocked_func_t));
static void xc_entry_apply_unlocked(xc_entry_type_t type, xc_cache_t *cache, cache_apply_unlocked_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_unlocked(type, cache, 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_unlocked -> xc_gc_expires_php_entry_unlocked
* xc_gc_expires_var -> xc_gc_expires_one -> xc_entry_apply_unlocked -> xc_gc_expires_var_entry_unlocked
*/
static XC_ENTRY_APPLY_FUNC(xc_gc_expires_php_entry_unlocked) /* {{{ */
{
TRACE("ttl %lu, %lu %lu", (zend_ulong) XG(request_time), (zend_ulong) entry->atime, xc_php_ttl);
if (XG(request_time) > entry->atime + (time_t) xc_php_ttl) {
return 1;
}
return 0;
}
/* }}} */
static XC_ENTRY_APPLY_FUNC(xc_gc_expires_var_entry_unlocked) /* {{{ */
{
if (VAR_ENTRY_EXPIRED(entry)) {
return 1;
}
return 0;
}
/* }}} */
static void xc_gc_expires_one(xc_entry_type_t type, xc_cache_t *cache, zend_ulong gc_interval, cache_apply_unlocked_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 + (time_t) gc_interval) {
ENTER_LOCK(cache) {
if (XG(request_time) >= cache->last_gc_expires + (time_t) gc_interval) {
cache->last_gc_expires = XG(request_time);
xc_entry_apply_unlocked(type, 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_TYPE_PHP, xc_php_caches[i], xc_php_gc_interval, xc_gc_expires_php_entry_unlocked 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_TYPE_VAR, xc_var_caches[i], xc_var_gc_interval, xc_gc_expires_var_entry_unlocked TSRMLS_CC);
}
}
/* }}} */
static XC_CACHE_APPLY_FUNC(xc_gc_delete_unlocked) /* {{{ */
{
xc_entry_t *p, **pp;
pp = &cache->deletes;
for (p = *pp; p; p = *pp) {
xc_entry_php_t *entry = (xc_entry_php_t *) p;
if (XG(request_time) - p->dtime > 3600) {
entry->refcount = 0;
/* issue warning here */
}
if (entry->refcount == 0) {
/* unlink */
*pp = p->next;
cache->deletes_count --;
xc_entry_free_real_unlocked(XC_TYPE_PHP, cache, 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_unlocked(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_unlocked(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("updates"), cache->updates);
add_assoc_long_ex(return_value, ZEND_STRS("misses"), cache->updates); /* deprecated */
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_unlocked(xc_entry_type_t type, const xc_entry_t *entry, xc_hash_value_t entryslotid, int del, zval *list TSRMLS_DC) /* {{{ */
{
zval* ei;
const xc_entry_data_php_t *php;
ALLOC_INIT_ZVAL(ei);
array_init(ei);
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"), entryslotid);
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 (type) {
case XC_TYPE_PHP: {
xc_entry_php_t *entry_php = (xc_entry_php_t *) entry;
php = entry_php->php;
add_assoc_long_ex(ei, ZEND_STRS("size"), entry->size + php->size);
add_assoc_long_ex(ei, ZEND_STRS("refcount"), entry_php->refcount);
add_assoc_long_ex(ei, ZEND_STRS("phprefcount"), php->refcount);
add_assoc_long_ex(ei, ZEND_STRS("file_mtime"), entry_php->file_mtime);
add_assoc_long_ex(ei, ZEND_STRS("file_size"), entry_php->file_size);
#ifdef HAVE_INODE
add_assoc_long_ex(ei, ZEND_STRS("file_device"), entry_php->file_device);
add_assoc_long_ex(ei, ZEND_STRS("file_inode"), entry_php->file_inode);
#endif
#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:
add_assoc_long_ex(ei, ZEND_STRS("refcount"), 0); /* for BC only */
add_assoc_long_ex(ei, ZEND_STRS("size"), entry->size);
break;
default:
assert(0);
}
add_next_index_zval(list, ei);
}
/* }}} */
static void xc_filllist_unlocked(xc_entry_type_t type, 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_unlocked(type, e, i, 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_unlocked(XC_TYPE_PHP, e, 0, 1, list TSRMLS_CC);
}
add_assoc_zval(return_value, "deleted_list", list);
}
/* }}} */
static zend_op_array *xc_entry_install(xc_entry_php_t *entry_php TSRMLS_DC) /* {{{ */
{
zend_uint i;
xc_entry_data_php_t *p = entry_php->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(entry_php->entry.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(entry_php->entry.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(entry_php->entry.name.str.val, &ci->cest, -1,
UNISW(0, ci->type), ci->key, ci->key_size, ci->h TSRMLS_CC);
#else
xc_install_class(entry_php->entry.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_u_is_auto_global(aginfo->type, aginfo->key, aginfo->key_len TSRMLS_CC);
}
#endif
#ifdef XCACHE_ERROR_CACHING
/* restore trigger errors */
for (i = 0; i < p->compilererror_cnt; i ++) {
xc_compilererror_t *error = &p->compilererrors[i];
CG(zend_lineno) = error->lineno;
zend_error(error->type, "%s", error->error);
}
CG(zend_lineno) = 0;
#endif
i = 1;
#ifndef ZEND_ENGINE_2_2
zend_hash_add(&EG(included_files), entry_php->entry.name.str.val, entry_php->entry.name.str.len+1, (void *)&i, sizeof(int), NULL);
#endif
#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_php_t *entry_php;
for (i = 0; i < cachecount; i ++) {
s = &holds[i];
TRACE("holded %d items", xc_stack_count(s));
if (xc_stack_count(s)) {
cache = caches[i];
ENTER_LOCK(cache) {
while (xc_stack_count(s)) {
entry_php = (xc_entry_php_t *) xc_stack_pop(s);
TRACE("unhold %d:%s", entry_php->file_inode, entry_php->entry.name.str.val);
--entry_php->refcount;
assert(entry_php->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);
}
}
/* }}} */
#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_S(s, l) HASH(zend_inline_hash_func((char *) (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 *entry TSRMLS_DC) /* {{{ */
{
return UNISW(NOTHING, UG(unicode) ? HASH_ZSTR_L(entry->name_type, entry->name.uni.val, entry->name.uni.len) :)
HASH_STR_L(entry->name.str.val, entry->name.str.len);
}
/* }}} */
#define xc_entry_hash_var xc_entry_hash_name
static void xc_entry_free_key_php(xc_entry_php_t *entry_php TSRMLS_DC) /* {{{ */
{
#define X_FREE(var) do {\
if (entry_php->var) { \
efree(entry_php->var); \
} \
} while (0)
X_FREE(dirpath);
#ifdef IS_UNICODE
X_FREE(ufilepath);
X_FREE(udirpath);
#endif
#undef X_FREE
}
/* }}} */
static char *xc_expand_url(const char *filepath, char *real_path TSRMLS_DC) /* {{{ */
{
if (strstr(filepath, "://") != NULL) {
size_t filepath_len = strlen(filepath);
size_t copy_len = filepath_len > MAXPATHLEN - 1 ? MAXPATHLEN - 1 : filepath_len;
memcpy(real_path, filepath, filepath_len);
real_path[copy_len] = '\0';
return real_path;
}
return expand_filepath(filepath, real_path TSRMLS_CC);
}
/* }}} */
#define XC_RESOLVE_PATH_CHECKER(name) zend_bool name(const char *filepath, size_t filepath_len, void *data TSRMLS_DC)
typedef XC_RESOLVE_PATH_CHECKER((*xc_resolve_path_checker_func_t));
static zend_bool xc_resolve_path(const char *filepath, char *path_buffer, xc_resolve_path_checker_func_t checker_func, void *data TSRMLS_DC) /* {{{ */
{
char *paths, *path;
char *tokbuf;
size_t path_buffer_len;
int size;
char tokens[] = { DEFAULT_DIR_SEPARATOR, '\0' };
int ret;
ALLOCA_FLAG(use_heap)
#if 0
if ((*filepath == '.' &&
(IS_SLASH(filepath[1]) ||
((filepath[1] == '.') && IS_SLASH(filepath[2])))) ||
IS_ABSOLUTE_PATH(filepath, strlen(filepath)) ||
!path ||
!*path) {
if (checker_func(path_buffer, path_buffer_len, data TSRMLS_CC)) {
ret = 1;
}
else {
ret = FAILURE;
}
goto finish;
}
#endif
size = strlen(PG(include_path)) + 1;
paths = (char *)my_do_alloca(size, use_heap);
memcpy(paths, PG(include_path), size);
for (path = php_strtok_r(paths, tokens, &tokbuf); path; path = php_strtok_r(NULL, tokens, &tokbuf)) {
path_buffer_len = snprintf(path_buffer, MAXPATHLEN, "%s/%s", path, filepath);
if (path_buffer_len < MAXPATHLEN - 1) {
if (checker_func(path_buffer, path_buffer_len, data TSRMLS_CC)) {
ret = 1;
goto finish;
}
}
}
/* fall back to current directory */
if (zend_is_executing(TSRMLS_C)) {
const char *executed_filename = zend_get_executed_filename(TSRMLS_C);
if (executed_filename && executed_filename[0] && executed_filename[0] != '[') {
size_t filename_len = strlen(filepath);
size_t dirname_len;
for (dirname_len = strlen(executed_filename) - 1; dirname_len > 0; --dirname_len) {
if (IS_SLASH(executed_filename[dirname_len])) {
if (dirname_len + filename_len < MAXPATHLEN - 1) {
++dirname_len; /* include tailing slash */
memcpy(path_buffer, executed_filename, dirname_len);
memcpy(path_buffer + dirname_len, filepath, filename_len);
path_buffer_len = dirname_len + filename_len;
path_buffer[path_buffer_len] = '\0';
if (checker_func(path_buffer, path_buffer_len, data TSRMLS_CC)) {
ret = 1;
goto finish;
}
}
break;
}
}
}
}
ret = 0;
finish:
my_free_alloca(paths, use_heap);
return ret;
}
/* }}} */
#ifndef ZEND_ENGINE_2_3
static XC_RESOLVE_PATH_CHECKER(xc_stat_file) /* {{{ */
{
return VCWD_STAT(filepath, (struct stat *) data) == 0 ? 1 : 0;
}
/* }}} */
static int xc_resolve_path_stat(const char *filepath, char *path_buffer, struct stat *pbuf TSRMLS_DC) /* {{{ */
{
return xc_resolve_path(filepath, path_buffer, xc_stat_file, (void *) pbuf TSRMLS_CC)
? SUCCESS
: FAILURE;
}
/* }}} */
#endif
typedef struct xc_compiler_t { /* {{{ */
/* XCache cached compile state */
const char *filename;
size_t filename_len;
const char *opened_path;
char opened_path_buffer[MAXPATHLEN];
xc_entry_hash_t entry_hash;
xc_entry_php_t new_entry;
xc_entry_data_php_t new_php;
} xc_compiler_t;
/* }}} */
typedef struct xc_entry_resolve_path_data_t { /* {{{ */
xc_compiler_t *compiler;
xc_entry_php_t **stored_entry;
} xc_entry_resolve_path_data_t;
/* }}} */
static XC_RESOLVE_PATH_CHECKER(xc_entry_resolve_path_func_unlocked) /* {{{ */
{
xc_entry_resolve_path_data_t *entry_resolve_path_data = (xc_entry_resolve_path_data_t *) data;
xc_compiler_t *compiler = entry_resolve_path_data->compiler;
compiler->new_entry.entry.name.str.val = xc_expand_url(filepath, compiler->opened_path_buffer TSRMLS_CC);
compiler->new_entry.entry.name.str.len = strlen(compiler->new_entry.entry.name.str.val);
*entry_resolve_path_data->stored_entry = (xc_entry_php_t *) xc_entry_find_unlocked(
XC_TYPE_PHP
, xc_php_caches[compiler->entry_hash.cacheid]
, compiler->entry_hash.entryslotid
, (xc_entry_t *) &compiler->new_entry
TSRMLS_CC);
return *entry_resolve_path_data->stored_entry ? 1 : 0;
}
/* }}} */
static int xc_entry_resolve_path_unlocked(xc_compiler_t *compiler, const char *filepath, xc_entry_php_t **stored_entry TSRMLS_DC) /* {{{ */
{
char path_buffer[MAXPATHLEN];
xc_entry_resolve_path_data_t entry_resolve_path_data;
entry_resolve_path_data.compiler = compiler;
entry_resolve_path_data.stored_entry = stored_entry;
return xc_resolve_path(filepath, path_buffer, xc_entry_resolve_path_func_unlocked, (void *) &entry_resolve_path_data TSRMLS_CC)
? SUCCESS
: FAILURE;
}
/* }}} */
static int xc_entry_php_quick_resolve_opened_path(xc_compiler_t *compiler, struct stat *statbuf TSRMLS_DC) /* {{{ */
{
if (strcmp(SG(request_info).path_translated, compiler->filename) == 0) {
/* sapi has already done this stat() for us */
if (statbuf) {
struct stat *sapi_stat = sapi_get_stat(TSRMLS_C);
if (!sapi_stat) {
goto giveupsapistat;
}
*statbuf = *sapi_stat;
}
compiler->opened_path = xc_expand_url(compiler->filename, compiler->opened_path_buffer TSRMLS_CC);
return SUCCESS;
}
giveupsapistat:
/* absolute path */
if (IS_ABSOLUTE_PATH(compiler->filename, strlen(compiler->filename))) {
if (statbuf && VCWD_STAT(compiler->filename, statbuf) != 0) {
return FAILURE;
}
compiler->opened_path = xc_expand_url(compiler->filename, compiler->opened_path_buffer TSRMLS_CC);
return SUCCESS;
}
/* relative path */
if (*compiler->filename == '.' && (IS_SLASH(compiler->filename[1]) || compiler->filename[1] == '.')) {
const char *ptr = compiler->filename + 1;
if (*ptr == '.') {
while (*(++ptr) == '.');
if (!IS_SLASH(*ptr)) {
return FAILURE;
}
}
if (statbuf && VCWD_STAT(compiler->filename, statbuf) != 0) {
return FAILURE;
}
compiler->opened_path = xc_expand_url(compiler->filename, compiler->opened_path_buffer TSRMLS_CC);
return SUCCESS;
}
return FAILURE;
}
/* }}} */
static int xc_entry_php_resolve_opened_path(xc_compiler_t *compiler, struct stat *statbuf TSRMLS_DC) /* {{{ */
{
if (xc_entry_php_quick_resolve_opened_path(compiler, statbuf TSRMLS_CC) == SUCCESS) {
/* opened_path resolved */
return SUCCESS;
}
/* fall back to real stat call */
else {
#ifdef ZEND_ENGINE_2_3
char *opened_path = php_resolve_path(compiler->filename, compiler->filename_len, PG(include_path) TSRMLS_CC);
if (opened_path) {
strcpy(compiler->opened_path_buffer, opened_path);
efree(opened_path);
compiler->opened_path = compiler->opened_path_buffer;
if (!statbuf || VCWD_STAT(compiler->opened_path, statbuf) == 0) {
return SUCCESS;
}
}
#else
char path_buffer[MAXPATHLEN];
if (xc_resolve_path_stat(compiler->filename, path_buffer, statbuf TSRMLS_CC) == SUCCESS) {
compiler->opened_path = xc_expand_url(path_buffer, compiler->opened_path_buffer TSRMLS_CC);
return SUCCESS;
}
#endif
}
return FAILURE;
}
/* }}} */
static int xc_entry_php_init_key(xc_compiler_t *compiler TSRMLS_DC) /* {{{ */
{
if (XG(stat)) {
struct stat buf;
time_t delta;
if (compiler->opened_path) {
if (VCWD_STAT(compiler->opened_path, &buf) != 0) {
return FAILURE;
}
}
else {
if (xc_entry_php_resolve_opened_path(compiler, &buf TSRMLS_CC) != SUCCESS) {
return FAILURE;
}
}
delta = XG(request_time) - buf.st_mtime;
if (abs(delta) < 2 && !xc_test) {
return FAILURE;
}
compiler->new_entry.file_mtime = buf.st_mtime;
compiler->new_entry.file_size = buf.st_size;
#ifdef HAVE_INODE
compiler->new_entry.file_device = buf.st_dev;
compiler->new_entry.file_inode = buf.st_ino;
#endif
}
else {
xc_entry_php_quick_resolve_opened_path(compiler, NULL TSRMLS_CC);
compiler->new_entry.file_mtime = 0;
compiler->new_entry.file_size = 0;
#ifdef HAVE_INODE
compiler->new_entry.file_device = 0;
compiler->new_entry.file_inode = 0;
#endif
}
{
xc_hash_value_t basename_hash_value;
if (
xc_php_hcache.size > 1
#ifdef HAVE_INODE
|| !compiler->new_entry.file_inode
#endif
)
{
const char *filename_end = compiler->filename + compiler->filename_len;
const char *basename = filename_end - 1;
/* scan till out of basename part */
while (basename >= compiler->filename && !IS_SLASH(*basename)) {
--basename;
}
/* get back to basename */
++basename;
basename_hash_value = HASH_STR_L(basename, filename_end - basename);
}
compiler->entry_hash.cacheid = xc_php_hcache.size > 1 ? xc_hash_fold(basename_hash_value, &xc_php_hcache) : 0;
compiler->entry_hash.entryslotid = xc_hash_fold(
#ifdef HAVE_INODE
compiler->new_entry.file_inode
? HASH(compiler->new_entry.file_device + compiler->new_entry.file_inode)
:
#endif
basename_hash_value
, &xc_php_hentry);
}
compiler->new_entry.filepath = NULL;
compiler->new_entry.dirpath = NULL;
#ifdef IS_UNICODE
compiler->new_entry.ufilepath = NULL;
compiler->new_entry.udirpath = NULL;
#endif
return SUCCESS;
}
/* }}} */
static inline xc_hash_value_t xc_php_hash_md5(xc_entry_data_php_t *php TSRMLS_DC) /* {{{ */
{
return HASH_STR_S(php->md5.digest, sizeof(php->md5.digest));
}
/* }}} */
static int xc_entry_data_php_init_md5(xc_cache_t *cache, xc_compiler_t *compiler TSRMLS_DC) /* {{{ */
{
unsigned char buf[1024];
PHP_MD5_CTX context;
int n;
php_stream *stream;
ulong old_rsid = EG(regular_list).nNextFreeElement;
stream = php_stream_open_wrapper((char *) compiler->filename, "rb", USE_PATH | REPORT_ERRORS | ENFORCE_SAFE_MODE | STREAM_DISABLE_OPEN_BASEDIR, NULL);
if (!stream) {
return FAILURE;
}
PHP_MD5Init(&context);
while ((n = php_stream_read(stream, (char *) buf, sizeof(buf))) > 0) {
PHP_MD5Update(&context, buf, n);
}
PHP_MD5Final((unsigned char *) compiler->new_php.md5.digest, &context);
php_stream_close(stream);
if (EG(regular_list).nNextFreeElement == old_rsid + 1) {
EG(regular_list).nNextFreeElement = old_rsid;
}
if (n < 0) {
return FAILURE;
}
compiler->new_php.hvalue = (xc_php_hash_md5(&compiler->new_php TSRMLS_CC) & cache->hphp->mask);
#ifdef XCACHE_DEBUG
{
char md5str[33];
make_digest(md5str, (unsigned char *) compiler->new_php.md5.digest);
TRACE("md5 %s", md5str);
}
#endif
return SUCCESS;
}
/* }}} */
static void xc_entry_php_init(xc_entry_php_t *entry_php, const char *filepath TSRMLS_DC) /* {{{*/
{
entry_php->filepath = ZEND_24((char *), NOTHING) filepath;
entry_php->filepath_len = strlen(entry_php->filepath);
entry_php->dirpath = estrndup(entry_php->filepath, entry_php->filepath_len);
entry_php->dirpath_len = zend_dirname(entry_php->dirpath, entry_php->filepath_len);
#ifdef IS_UNICODE
zend_string_to_unicode(ZEND_U_CONVERTER(UG(runtime_encoding_conv)), &entry_php->ufilepath, &entry_php->ufilepath_len, entry_php->filepath, entry_php->filepath_len TSRMLS_CC);
zend_string_to_unicode(ZEND_U_CONVERTER(UG(runtime_encoding_conv)), &entry_php->udirpath, &entry_php->udirpath_len, entry_php->dirpath, entry_php->dirpath_len TSRMLS_CC);
#endif
}
/* }}} */
#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;
zend_uint i;
int class_len;
xc_cest_t cest;
xc_entry_data_php_t *php = (xc_entry_data_php_t *) data;
class_name = Z_OP_CONSTANT(opline->op1).value.str.val;
class_len = Z_OP_CONSTANT(opline->op1).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
/* {{{ Constant Usage */
#ifdef ZEND_ENGINE_2_4
# define xcache_literal_is_dir 1
# define xcache_literal_is_file 2
#else
# define xcache_op1_is_file 1
# define xcache_op1_is_dir 2
# define xcache_op2_is_file 4
# define xcache_op2_is_dir 8
#endif
typedef struct {
zend_bool filepath_used;
zend_bool dirpath_used;
zend_bool ufilepath_used;
zend_bool udirpath_used;
} xc_const_usage_t;
/* }}} */
static void xc_collect_op_array_info(xc_compiler_t *compiler, xc_const_usage_t *usage, xc_op_array_info_t *op_array_info, zend_op_array *op_array TSRMLS_DC) /* {{{ */
{
#ifdef ZEND_ENGINE_2_4
int literalindex;
#else
zend_uint oplinenum;
#endif
xc_vector_t details;
xc_vector_init(xc_op_array_info_detail_t, &details);
#define XCACHE_ANALYZE_LITERAL(type) \
if (zend_binary_strcmp(Z_STRVAL(literal->constant), Z_STRLEN(literal->constant), compiler->new_entry.type##path, compiler->new_entry.type##path_len) == 0) { \
usage->type##path_used = 1; \
literalinfo |= xcache_##literal##_is_##type; \
}
#define XCACHE_U_ANALYZE_LITERAL(type) \
if (zend_u_##binary_strcmp(Z_USTRVAL(literal->constant), Z_USTRLEN(literal->constant), compiler->new_entry.u##type##path, compiler->new_entry.u##type##path_len) == 0) { \
usage->u##type##path_used = 1; \
literalinfo |= xcache_##literal##_is_##type; \
}
#define XCACHE_ANALYZE_OP(type, op) \
if (zend_binary_strcmp(Z_STRVAL(Z_OP_CONSTANT(opline->op)), Z_STRLEN(Z_OP_CONSTANT(opline->op)), compiler->new_entry.type##path, compiler->new_entry.type##path_len) == 0) { \
usage->type##path_used = 1; \
oplineinfo |= xcache_##op##_is_##type; \
}
#define XCACHE_U_ANALYZE_OP(type, op) \
if (zend_u_##binary_strcmp(Z_USTRVAL(Z_OP_CONSTANT(opline->op)), Z_USTRLEN(Z_OP_CONSTANT(opline->op)), compiler->new_entry.u##type##path, compiler->new_entry.u##type##path_len) == 0) { \
usage->u##type##path_used = 1; \
oplineinfo |= xcache_##op##_is_##type; \
}
#ifdef ZEND_ENGINE_2_4
for (literalindex = 0; literalindex < op_array->last_literal; literalindex++) {
zend_literal *literal = &op_array->literals[literalindex];
zend_uint literalinfo = 0;
if (Z_TYPE(literal->constant) == IS_STRING) {
XCACHE_ANALYZE_LITERAL(file)
else XCACHE_ANALYZE_LITERAL(dir)
}
#ifdef IS_UNICODE
else if (Z_TYPE(literal->constant) == IS_UNICODE) {
XCACHE_U_ANALYZE_LITERAL(file)
else XCACHE_U_ANALYZE_LITERAL(dir)
}
#endif
if (literalinfo) {
xc_op_array_info_detail_t detail;
detail.index = literalindex;
detail.info = literalinfo;
xc_vector_add(xc_op_array_info_detail_t, &details, detail);
}
}
op_array_info->literalinfo_cnt = details.cnt;
op_array_info->literalinfos = xc_vector_detach(xc_op_array_info_detail_t, &details);
#else /* ZEND_ENGINE_2_4 */
for (oplinenum = 0; oplinenum < op_array->last; oplinenum++) {
zend_op *opline = &op_array->opcodes[oplinenum];
zend_uint oplineinfo = 0;
if (Z_OP_TYPE(opline->op1) == IS_CONST) {
if (Z_TYPE(Z_OP_CONSTANT(opline->op1)) == IS_STRING) {
XCACHE_ANALYZE_OP(file, op1)
else XCACHE_ANALYZE_OP(dir, op1)
}
#ifdef IS_UNICODE
else if (Z_TYPE(Z_OP_CONSTANT(opline->op1)) == IS_UNICODE) {
XCACHE_U_ANALYZE_OP(file, op1)
else XCACHE_U_ANALYZE_OP(dir, op1)
}
#endif
}
if (Z_OP_TYPE(opline->op2) == IS_CONST) {
if (Z_TYPE(Z_OP_CONSTANT(opline->op2)) == IS_STRING) {
XCACHE_ANALYZE_OP(file, op2)
else XCACHE_ANALYZE_OP(dir, op2)
}
#ifdef IS_UNICODE
else if (Z_TYPE(Z_OP_CONSTANT(opline->op2)) == IS_UNICODE) {
XCACHE_U_ANALYZE_OP(file, op2)
else XCACHE_U_ANALYZE_OP(dir, op2)
}
#endif
}
if (oplineinfo) {
xc_op_array_info_detail_t detail;
detail.index = oplinenum;
detail.info = oplineinfo;
xc_vector_add(xc_op_array_info_detail_t, &details, detail);
}
}
op_array_info->oplineinfo_cnt = details.cnt;
op_array_info->oplineinfos = xc_vector_detach(xc_op_array_info_detail_t, &details);
#endif /* ZEND_ENGINE_2_4 */
xc_vector_free(xc_op_array_info_detail_t, &details);
}
/* }}} */
void xc_fix_op_array_info(const xc_entry_php_t *entry_php, const xc_entry_data_php_t *php, zend_op_array *op_array, int shallow_copy, const xc_op_array_info_t *op_array_info TSRMLS_DC) /* {{{ */
{
#ifdef ZEND_ENGINE_2_4
zend_uint linteralindex;
for (linteralindex = 0; linteralindex < op_array_info->literalinfo_cnt; ++linteralindex) {
int index = op_array_info->literalinfos[linteralindex].index;
int literalinfo = op_array_info->literalinfos[linteralindex].info;
zend_literal *literal = &op_array->literals[index];
if ((literalinfo & xcache_literal_is_file)) {
if (!shallow_copy) {
efree(Z_STRVAL(literal->constant));
}
if (Z_TYPE(literal->constant) == IS_STRING) {
assert(entry_php->filepath);
ZVAL_STRINGL(&literal->constant, entry_php->filepath, entry_php->filepath_len, !shallow_copy);
TRACE("restored literal constant: %s", entry_php->filepath);
}
#ifdef IS_UNICODE
else if (Z_TYPE(literal->constant) == IS_UNICODE) {
assert(entry_php->ufilepath);
ZVAL_UNICODEL(&literal->constant, entry_php->ufilepath, entry_php->ufilepath_len, !shallow_copy);
}
#endif
else {
assert(0);
}
}
else if ((literalinfo & xcache_literal_is_dir)) {
if (!shallow_copy) {
efree(Z_STRVAL(literal->constant));
}
if (Z_TYPE(literal->constant) == IS_STRING) {
assert(entry_php->dirpath);
TRACE("restored literal constant: %s", entry_php->dirpath);
ZVAL_STRINGL(&literal->constant, entry_php->dirpath, entry_php->dirpath_len, !shallow_copy);
}
#ifdef IS_UNICODE
else if (Z_TYPE(literal->constant) == IS_UNICODE) {
assert(!entry_php->udirpath);
ZVAL_UNICODEL(&literal->constant, entry_php->udirpath, entry_php->udirpath_len, !shallow_copy);
}
#endif
else {
assert(0);
}
}
}
#else /* ZEND_ENGINE_2_4 */
zend_uint oplinenum;
for (oplinenum = 0; oplinenum < op_array_info->oplineinfo_cnt; ++oplinenum) {
int oplineno = op_array_info->oplineinfos[oplinenum].index;
int oplineinfo = op_array_info->oplineinfos[oplinenum].info;
zend_op *opline = &op_array->opcodes[oplineno];
if ((oplineinfo & xcache_op1_is_file)) {
assert(Z_OP_TYPE(opline->op1) == IS_CONST);
if (!shallow_copy) {
efree(Z_STRVAL(Z_OP_CONSTANT(opline->op1)));
}
if (Z_TYPE(Z_OP_CONSTANT(opline->op1)) == IS_STRING) {
assert(entry_php->filepath);
ZVAL_STRINGL(&Z_OP_CONSTANT(opline->op1), entry_php->filepath, entry_php->filepath_len, !shallow_copy);
TRACE("restored op1 constant: %s", entry_php->filepath);
}
#ifdef IS_UNICODE
else if (Z_TYPE(Z_OP_CONSTANT(opline->op1)) == IS_UNICODE) {
assert(entry_php->ufilepath);
ZVAL_UNICODEL(&Z_OP_CONSTANT(opline->op1), entry_php->ufilepath, entry_php->ufilepath_len, !shallow_copy);
}
#endif
else {
assert(0);
}
}
else if ((oplineinfo & xcache_op1_is_dir)) {
assert(Z_OP_TYPE(opline->op1) == IS_CONST);
if (!shallow_copy) {
efree(Z_STRVAL(Z_OP_CONSTANT(opline->op1)));
}
if (Z_TYPE(Z_OP_CONSTANT(opline->op1)) == IS_STRING) {
assert(entry_php->dirpath);
TRACE("restored op1 constant: %s", entry_php->dirpath);
ZVAL_STRINGL(&Z_OP_CONSTANT(opline->op1), entry_php->dirpath, entry_php->dirpath_len, !shallow_copy);
}
#ifdef IS_UNICODE
else if (Z_TYPE(Z_OP_CONSTANT(opline->op1)) == IS_UNICODE) {
assert(!entry_php->udirpath);
ZVAL_UNICODEL(&Z_OP_CONSTANT(opline->op1), entry_php->udirpath, entry_php->udirpath_len, !shallow_copy);
}
#endif
else {
assert(0);
}
}
if ((oplineinfo & xcache_op2_is_file)) {
assert(Z_OP_TYPE(opline->op2) == IS_CONST);
if (!shallow_copy) {
efree(Z_STRVAL(Z_OP_CONSTANT(opline->op2)));
}
if (Z_TYPE(Z_OP_CONSTANT(opline->op2)) == IS_STRING) {
assert(entry_php->filepath);
TRACE("restored op2 constant: %s", entry_php->filepath);
ZVAL_STRINGL(&Z_OP_CONSTANT(opline->op2), entry_php->filepath, entry_php->filepath_len, !shallow_copy);
}
#ifdef IS_UNICODE
else if (Z_TYPE(Z_OP_CONSTANT(opline->op2)) == IS_UNICODE) {
assert(entry_php->ufilepath);
ZVAL_UNICODEL(&Z_OP_CONSTANT(opline->op2), entry_php->ufilepath, entry_php->ufilepath_len, !shallow_copy);
}
#endif
else {
assert(0);
}
}
else if ((oplineinfo & xcache_op2_is_dir)) {
assert(Z_OP_TYPE(opline->op2) == IS_CONST);
if (!shallow_copy) {
efree(Z_STRVAL(Z_OP_CONSTANT(opline->op2)));
}
if (Z_TYPE(Z_OP_CONSTANT(opline->op2)) == IS_STRING) {
assert(entry_php->dirpath);
TRACE("restored op2 constant: %s", entry_php->dirpath);
ZVAL_STRINGL(&Z_OP_CONSTANT(opline->op2), entry_php->dirpath, entry_php->dirpath_len, !shallow_copy);
}
#ifdef IS_UNICODE
else if (Z_TYPE(Z_OP_CONSTANT(opline->op2)) == IS_UNICODE) {
assert(entry_php->udirpath);
ZVAL_UNICODEL(&Z_OP_CONSTANT(opline->op2), entry_php->udirpath, entry_php->udirpath_len, !shallow_copy);
}
#endif
else {
assert(0);
}
}
}
#endif /* ZEND_ENGINE_2_4 */
}
/* }}} */
static void xc_free_op_array_info(xc_op_array_info_t *op_array_info TSRMLS_DC) /* {{{ */
{
#ifdef ZEND_ENGINE_2_4
if (op_array_info->literalinfos) {
efree(op_array_info->literalinfos);
}
#else
if (op_array_info->oplineinfos) {
efree(op_array_info->oplineinfos);
}
#endif
}
/* }}} */
static void xc_free_php(xc_entry_data_php_t *php TSRMLS_DC) /* {{{ */
{
zend_uint i;
if (php->classinfos) {
for (i = 0; i < php->classinfo_cnt; i ++) {
xc_classinfo_t *classinfo = &php->classinfos[i];
zend_uint j;
for (j = 0; j < classinfo->methodinfo_cnt; j ++) {
xc_free_op_array_info(&classinfo->methodinfos[j] TSRMLS_CC);
}
if (classinfo->methodinfos) {
efree(classinfo->methodinfos);
}
}
}
if (php->funcinfos) {
for (i = 0; i < php->funcinfo_cnt; i ++) {
xc_free_op_array_info(&php->funcinfos[i].op_array_info TSRMLS_CC);
}
}
xc_free_op_array_info(&php->op_array_info TSRMLS_CC);
#define X_FREE(var) do {\
if (php->var) { \
efree(php->var); \
} \
} while (0)
#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
}
/* }}} */
static void xc_compile_php(xc_compiler_t *compiler, zend_file_handle *h, int type TSRMLS_DC) /* {{{ */
{
zend_uint old_constinfo_cnt, old_funcinfo_cnt, old_classinfo_cnt;
zend_bool catched = 0;
/* {{{ compile */
TRACE("compiling %s", h->opened_path ? h->opened_path : h->filename);
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));
zend_try {
compiler->new_php.op_array = old_compile_file(h, type TSRMLS_CC);
} zend_catch {
catched = 1;
} zend_end_try();
if (catched) {
goto err_bailout;
}
if (compiler->new_php.op_array == NULL) {
goto err_op_array;
}
if (!XG(initial_compile_file_called)) {
return;
}
/* }}} */
/* {{{ prepare */
zend_restore_compiled_filename(h->opened_path ? h->opened_path : (char *) h->filename TSRMLS_CC);
#ifdef HAVE_XCACHE_CONSTANT
compiler->new_php.constinfo_cnt = zend_hash_num_elements(EG(zend_constants)) - old_constinfo_cnt;
#endif
compiler->new_php.funcinfo_cnt = zend_hash_num_elements(CG(function_table)) - old_funcinfo_cnt;
compiler->new_php.classinfo_cnt = zend_hash_num_elements(CG(class_table)) - old_classinfo_cnt;
#ifdef ZEND_ENGINE_2_1
/* {{{ count new_php.autoglobal_cnt */ {
Bucket *b;
compiler->new_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) {
compiler->new_php.autoglobal_cnt ++;
}
}
}
/* }}} */
#endif
#define X_ALLOC_N(var, cnt) do { \
if (compiler->new_php.cnt) { \
ECALLOC_N(compiler->new_php.var, compiler->new_php.cnt); \
if (!compiler->new_php.var) { \
goto err_alloc; \
} \
} \
else { \
compiler->new_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;
zend_uint i;
zend_uint j;
#define COPY_H(vartype, var, cnt, name, datatype) do { \
for (i = 0, j = 0; b; i ++, b = b->pListNext) { \
vartype *data = &compiler->new_php.var[j]; \
\
if (i < old_##cnt) { \
continue; \
} \
j ++; \
\
assert(i < old_##cnt + compiler->new_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 = &compiler->new_php.autoglobals[i];
assert(i < compiler->new_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
}
/* }}} */
/* {{{ collect info for file/dir path */ {
Bucket *b;
xc_const_usage_t const_usage;
unsigned int i;
xc_entry_php_init(&compiler->new_entry, zend_get_compiled_filename(TSRMLS_C) TSRMLS_CC);
memset(&const_usage, 0, sizeof(const_usage));
for (i = 0; i < compiler->new_php.classinfo_cnt; i ++) {
xc_classinfo_t *classinfo = &compiler->new_php.classinfos[i];
zend_class_entry *ce = CestToCePtr(classinfo->cest);
classinfo->methodinfo_cnt = ce->function_table.nTableSize;
if (classinfo->methodinfo_cnt) {
int j;
ECALLOC_N(classinfo->methodinfos, classinfo->methodinfo_cnt);
if (!classinfo->methodinfos) {
goto err_alloc;
}
for (j = 0, b = ce->function_table.pListHead; b; j ++, b = b->pListNext) {
xc_collect_op_array_info(compiler, &const_usage, &classinfo->methodinfos[j], (zend_op_array *) b->pData TSRMLS_CC);
}
}
else {
classinfo->methodinfos = NULL;
}
}
for (i = 0; i < compiler->new_php.funcinfo_cnt; i ++) {
xc_collect_op_array_info(compiler, &const_usage, &compiler->new_php.funcinfos[i].op_array_info, (zend_op_array *) &compiler->new_php.funcinfos[i].func TSRMLS_CC);
}
xc_collect_op_array_info(compiler, &const_usage, &compiler->new_php.op_array_info, compiler->new_php.op_array TSRMLS_CC);
/* file/dir path free unused */
#define X_FREE_UNUSED(var) \
if (!const_usage.var##path_used) { \
efree(compiler->new_entry.var##path); \
compiler->new_entry.var##path = NULL; \
compiler->new_entry.var##path_len = 0; \
}
/* filepath is required to restore op_array->filename, so no free filepath here */
X_FREE_UNUSED(dir)
#ifdef IS_UNICODE
X_FREE_UNUSED(ufile)
X_FREE_UNUSED(udir)
#endif
#undef X_FREE_UNUSED
}
/* }}} */
#ifdef XCACHE_ERROR_CACHING
compiler->new_php.compilererrors = xc_sandbox_compilererrors(TSRMLS_C);
compiler->new_php.compilererror_cnt = xc_sandbox_compilererror_cnt(TSRMLS_C);
#endif
#ifndef ZEND_COMPILE_DELAYED_BINDING
/* {{{ find inherited classes that should be early-binding */
compiler->new_php.have_early_binding = 0;
{
zend_uint i;
for (i = 0; i < compiler->new_php.classinfo_cnt; i ++) {
compiler->new_php.classinfos[i].oplineno = -1;
}
}
xc_undo_pass_two(compiler->new_php.op_array TSRMLS_CC);
xc_foreach_early_binding_class(compiler->new_php.op_array, xc_cache_early_binding_class_cb, (void *) &compiler->new_php TSRMLS_CC);
xc_redo_pass_two(compiler->new_php.op_array TSRMLS_CC);
/* }}} */
#endif
return;
err_alloc:
xc_free_php(&compiler->new_php TSRMLS_CC);
err_bailout:
err_op_array:
if (catched) {
zend_bailout();
}
}
/* }}} */
static zend_op_array *xc_compile_restore(xc_entry_php_t *stored_entry, xc_entry_data_php_t *stored_php TSRMLS_DC) /* {{{ */
{
zend_op_array *op_array;
xc_entry_php_t restored_entry;
xc_entry_data_php_t restored_php;
zend_bool catched;
zend_uint i;
/* still needed because in zend_language_scanner.l, require()/include() check file_handle.handle.stream.handle */
i = 1;
zend_hash_add(&EG(included_files), stored_entry->entry.name.str.val, stored_entry->entry.name.str.len + 1, (void *)&i, sizeof(int), NULL);
CG(in_compilation) = 1;
CG(compiled_filename) = stored_entry->entry.name.str.val;
CG(zend_lineno) = 0;
TRACE("restoring %d:%s", stored_entry->file_inode, stored_entry->entry.name.str.val);
xc_processor_restore_xc_entry_php_t(&restored_entry, stored_entry TSRMLS_CC);
xc_processor_restore_xc_entry_data_php_t(stored_entry, &restored_php, stored_php, xc_readonly_protection TSRMLS_CC);
restored_entry.php = &restored_php;
#ifdef SHOW_DPRINT
xc_dprint(&restored_entry, 0 TSRMLS_CC);
#endif
catched = 0;
zend_try {
op_array = xc_entry_install(&restored_entry TSRMLS_CC);
} zend_catch {
catched = 1;
} zend_end_try();
#ifdef HAVE_XCACHE_CONSTANT
if (restored_php.constinfos) {
efree(restored_php.constinfos);
}
#endif
if (restored_php.funcinfos) {
efree(restored_php.funcinfos);
}
if (restored_php.classinfos) {
efree(restored_php.classinfos);
}
if (catched) {
zend_bailout();
}
CG(in_compilation) = 0;
CG(compiled_filename) = NULL;
TRACE("restored %d:%s", stored_entry->file_inode, stored_entry->entry.name.str.val);
return op_array;
}
/* }}} */
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);
}
/* }}} */
typedef struct xc_sandboxed_compiler_t { /* {{{ */
xc_compiler_t *compiler;
/* input */
zend_file_handle *h;
int type;
/* sandbox output */
xc_entry_php_t *stored_entry;
xc_entry_data_php_t *stored_php;
} xc_sandboxed_compiler_t; /* {{{ */
static zend_op_array *xc_compile_file_sandboxed(void *data TSRMLS_DC) /* {{{ */
{
xc_sandboxed_compiler_t *sandboxed_compiler = (xc_sandboxed_compiler_t *) data;
xc_compiler_t *compiler = sandboxed_compiler->compiler;
zend_bool catched = 0;
xc_cache_t *cache = xc_php_caches[compiler->entry_hash.cacheid];
xc_entry_php_t *stored_entry;
xc_entry_data_php_t *stored_php;
/* {{{ compile */
/* make compile inside sandbox */
#ifdef HAVE_XCACHE_CONSTANT
compiler->new_php.constinfos = NULL;
#endif
compiler->new_php.funcinfos = NULL;
compiler->new_php.classinfos = NULL;
#ifdef ZEND_ENGINE_2_1
compiler->new_php.autoglobals = NULL;
#endif
memset(&compiler->new_php.op_array_info, 0, sizeof(compiler->new_php.op_array_info));
XG(initial_compile_file_called) = 0;
zend_try {
compiler->new_php.op_array = NULL;
xc_compile_php(compiler, sandboxed_compiler->h, sandboxed_compiler->type TSRMLS_CC);
} zend_catch {
catched = 1;
} zend_end_try();
if (catched
|| !compiler->new_php.op_array /* possible ? */
|| !XG(initial_compile_file_called)) {
goto err_aftersandbox;
}
/* }}} */
#ifdef SHOW_DPRINT
compiler->new_entry.php = &compiler->new_php;
xc_dprint(&compiler->new_entry, 0 TSRMLS_CC);
#endif
stored_entry = NULL;
stored_php = NULL;
ENTER_LOCK_EX(cache) { /* {{{ php_store/entry_store */
/* php_store */
stored_php = xc_php_store_unlocked(cache, &compiler->new_php TSRMLS_CC);
if (!stored_php) {
/* error */
break;
}
/* entry_store */
compiler->new_entry.php = stored_php;
stored_entry = xc_entry_php_store_unlocked(cache, compiler->entry_hash.entryslotid, &compiler->new_entry TSRMLS_CC);
if (stored_entry) {
xc_php_addref_unlocked(stored_php);
TRACE(" cached %d:%s, holding", compiler->new_entry.file_inode, stored_entry->entry.name.str.val);
xc_entry_hold_php_unlocked(cache, stored_entry TSRMLS_CC);
}
} LEAVE_LOCK_EX(cache);
/* }}} */
TRACE("%s", stored_entry ? "stored" : "store failed");
if (catched || !stored_php) {
goto err_aftersandbox;
}
cache->compiling = 0;
xc_free_php(&compiler->new_php TSRMLS_CC);
if (stored_entry) {
sandboxed_compiler->stored_entry = stored_entry;
sandboxed_compiler->stored_php = stored_php;
/* discard newly compiled result, restore from stored one */
if (compiler->new_php.op_array) {
#ifdef ZEND_ENGINE_2
destroy_op_array(compiler->new_php.op_array TSRMLS_CC);
#else
destroy_op_array(compiler->new_php.op_array);
#endif
efree(compiler->new_php.op_array);
compiler->new_php.op_array = NULL;
}
return NULL;
}
else {
return compiler->new_php.op_array;
}
err_aftersandbox:
xc_free_php(&compiler->new_php TSRMLS_CC);
cache->compiling = 0;
if (catched) {
cache->errors ++;
zend_bailout();
}
return compiler->new_php.op_array;
} /* }}} */
static zend_op_array *xc_compile_file_cached(xc_compiler_t *compiler, zend_file_handle *h, int type TSRMLS_DC) /* {{{ */
{
/*
if (clog) {
return old;
}
if (cached_entry = getby entry_hash) {
php = cached_entry.php;
php = restore(php);
return php;
}
else {
if (!(php = getby md5)) {
if (clog) {
return old;
}
inside_sandbox {
php = compile;
entry = create entries[entry];
}
}
entry.php = php;
return php;
}
*/
xc_entry_php_t *stored_entry;
xc_entry_data_php_t *stored_php;
zend_bool gaveup = 0;
zend_bool catched = 0;
zend_op_array *op_array;
xc_cache_t *cache = xc_php_caches[compiler->entry_hash.cacheid];
xc_sandboxed_compiler_t sandboxed_compiler;
/* stale clogs precheck */
if (XG(request_time) - cache->compiling < 30) {
cache->clogs ++;
return old_compile_file(h, type TSRMLS_CC);
}
/* {{{ entry_lookup/hit/md5_init/php_lookup */
stored_entry = NULL;
stored_php = NULL;
ENTER_LOCK_EX(cache) {
if (!compiler->opened_path && xc_entry_resolve_path_unlocked(compiler, compiler->filename, &stored_entry TSRMLS_CC) == SUCCESS) {
compiler->opened_path = compiler->new_entry.entry.name.str.val;
}
else {
if (!compiler->opened_path && xc_entry_php_resolve_opened_path(compiler, NULL TSRMLS_CC) != SUCCESS) {
gaveup = 1;
break;
}
/* finalize name */
compiler->new_entry.entry.name.str.val = (char *) compiler->opened_path;
compiler->new_entry.entry.name.str.len = strlen(compiler->new_entry.entry.name.str.val);
stored_entry = (xc_entry_php_t *) xc_entry_find_unlocked(XC_TYPE_PHP, cache, compiler->entry_hash.entryslotid, (xc_entry_t *) &compiler->new_entry TSRMLS_CC);
}
if (stored_entry) {
xc_cache_hit_unlocked(cache TSRMLS_CC);
TRACE(" hit %d:%s, holding", compiler->new_entry.file_inode, stored_entry->entry.name.str.val);
xc_entry_hold_php_unlocked(cache, stored_entry TSRMLS_CC);
stored_php = stored_entry->php;
break;
}
TRACE("miss entry %d:%s", compiler->new_entry.file_inode, compiler->new_entry.entry.name.str.val);
if (xc_entry_data_php_init_md5(cache, compiler TSRMLS_CC) != SUCCESS) {
gaveup = 1;
break;
}
stored_php = xc_php_find_unlocked(cache, &compiler->new_php TSRMLS_CC);
if (stored_php) {
compiler->new_entry.php = stored_php;
xc_entry_php_init(&compiler->new_entry, compiler->opened_path TSRMLS_CC);
stored_entry = xc_entry_php_store_unlocked(cache, compiler->entry_hash.entryslotid, &compiler->new_entry TSRMLS_CC);
if (stored_entry) {
xc_php_addref_unlocked(stored_php);
TRACE(" cached %d:%s, holding", compiler->new_entry.file_inode, stored_entry->entry.name.str.val);
xc_entry_hold_php_unlocked(cache, stored_entry TSRMLS_CC);
}
else {
gaveup = 1;
}
break;
}
if (XG(request_time) - cache->compiling < 30) {
TRACE("%s", "miss php, but compiling");
cache->clogs ++;
gaveup = 1;
break;
}
TRACE("%s", "miss php, going to compile");
cache->compiling = XG(request_time);
} LEAVE_LOCK_EX(cache);
if (catched) {
cache->compiling = 0;
zend_bailout();
}
/* found entry */
if (stored_entry && stored_php) {
zend_llist_add_element(&CG(open_files), h);
return xc_compile_restore(stored_entry, stored_php TSRMLS_CC);
}
/* gaveup */
if (gaveup) {
return old_compile_file(h, type TSRMLS_CC);
}
/* }}} */
sandboxed_compiler.compiler = compiler;
sandboxed_compiler.h = h;
sandboxed_compiler.type = type;
sandboxed_compiler.stored_php = NULL;
sandboxed_compiler.stored_entry = NULL;
op_array = xc_sandbox(xc_compile_file_sandboxed, (void *) &sandboxed_compiler, h->opened_path ? h->opened_path : h->filename TSRMLS_CC);
if (sandboxed_compiler.stored_entry) {
return xc_compile_restore(sandboxed_compiler.stored_entry, sandboxed_compiler.stored_php TSRMLS_CC);
}
else {
return op_array;
}
}
/* }}} */
static zend_op_array *xc_compile_file(zend_file_handle *h, int type TSRMLS_DC) /* {{{ */
{
xc_compiler_t compiler;
zend_op_array *op_array;
assert(xc_initized);
TRACE("xc_compile_file: type=%d name=%s", h->type, h->filename ? h->filename : "NULL");
if (!XG(cacher)
|| !h->filename
|| !SG(request_info).path_translated
|| strstr(h->filename, "://") != NULL
#ifdef ZEND_ENGINE_2_3
/* supported by php_resolve_path */
|| (!XG(stat) && strstr(PG(include_path), "://") != NULL)
#else
|| strstr(PG(include_path), "://") != NULL
#endif
) {
TRACE("%s", "cacher not enabled");
return old_compile_file(h, type TSRMLS_CC);
}
/* {{{ entry_init_key */
compiler.opened_path = h->opened_path;
compiler.filename = compiler.opened_path ? compiler.opened_path : h->filename;
compiler.filename_len = strlen(compiler.filename);
if (xc_entry_php_init_key(&compiler TSRMLS_CC) != SUCCESS) {
TRACE("failed to init key for %s", compiler.filename);
return old_compile_file(h, type TSRMLS_CC);
}
/* }}} */
op_array = xc_compile_file_cached(&compiler, h, type TSRMLS_CC);
xc_entry_free_key_php(&compiler.new_entry TSRMLS_CC);
return op_array;
}
/* }}} */
/* gdb helper functions, but N/A for coredump */
int xc_is_rw(const void *p) /* {{{ */
{
xc_shm_t *shm;
size_t 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;
size_t 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);
}
/* }}} */
void xc_gc_add_op_array(xc_gc_op_array_t *gc_op_array TSRMLS_DC) /* {{{ */
{
zend_llist_add_element(&XG(gc_op_arrays), (void *) gc_op_array);
}
/* }}} */
static void xc_gc_op_array(void *pDest) /* {{{ */
{
xc_gc_op_array_t *op_array = (xc_gc_op_array_t *) pDest;
zend_uint i;
#ifdef ZEND_ENGINE_2
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
if (op_array->opcodes) {
efree(op_array->opcodes);
}
}
/* }}} */
/* 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) /* {{{ */
{
size_t 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_hash_t *hphp, xc_shmsize_t shmsize) /* {{{ */
{
xc_cache_t **caches = NULL, *cache;
xc_mem_t *mem;
time_t now = time(NULL);
size_t 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");
if (hphp) {
CHECK(cache->phps= mem->handlers->calloc(mem, hphp->size, sizeof(xc_entry_data_php_t*)), "phps OOM");
}
CHECK(cache->lck = xc_lock_init(NULL), "can't create lock");
cache->hcache = hcache;
cache->hentry = hentry;
cache->hphp = hphp;
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 (!