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 "xc_cacher.h"
#include "xc_cache.h"
#include "xcache.h"
#include "xc_processor.h"
#include "xcache_globals.h"
#include "xcache/xc_extension.h"
#include "xcache/xc_ini.h"
#include "xcache/xc_utils.h"
#include "xcache/xc_sandbox.h"
#include "util/xc_trace.h"
#include "util/xc_vector.h"
#include "util/xc_align.h"
#include "php.h"
#include "ext/standard/info.h"
#include "ext/standard/md5.h"
#ifdef ZEND_ENGINE_2_1
#include "ext/date/php_date.h"
#endif
#include "ext/standard/php_math.h"
#include "SAPI.h"
#define ECALLOC_N(x, n) ((x) = ecalloc(n, sizeof((x)[0])))
#define ECALLOC_ONE(x) ECALLOC_N(x, 1)
#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)
/* }}} */
struct _xc_hash_t { /* {{{ */
size_t bits;
size_t size;
xc_hash_value_t mask;
};
/* }}} */
struct _xc_cached_t { /* {{{ stored in shm */
int cacheid;
time_t compiling;
time_t disabled;
zend_ulong updates;
zend_ulong hits;
zend_ulong skips;
zend_ulong ooms;
zend_ulong errors;
xc_entry_t **entries;
int entries_count;
xc_entry_data_php_t **phps;
int phps_count;
xc_entry_t *deletes;
int deletes_count;
time_t last_gc_deletes;
time_t last_gc_expires;
time_t hits_by_hour_cur_time;
zend_uint hits_by_hour_cur_slot;
zend_ulong hits_by_hour[24];
time_t hits_by_second_cur_time;
zend_uint hits_by_second_cur_slot;
zend_ulong hits_by_second[5];
};
/* }}} */
typedef struct { /* {{{ xc_cache_t: only cache info, not in shm */
int cacheid;
xc_hash_t *hcache; /* hash to cacheid */
struct _xc_lock_t *lck;
struct _xc_shm_t *shm; /* which shm contains us */
xc_allocator_t *allocator;
xc_hash_t *hentry; /* hash settings to entry */
xc_hash_t *hphp; /* hash settings to php */
xc_cached_t *cached;
} xc_cache_t;
/* }}} */
/* {{{ globals */
static char *xc_shm_scheme = NULL;
static char *xc_mmap_path = NULL;
static zend_bool xc_admin_enable_auth = 1;
static xc_hash_t xc_php_hcache = { 0, 0, 0 };
static xc_hash_t xc_php_hentry = { 0, 0, 0 };
static xc_hash_t xc_var_hcache = { 0, 0, 0 };
static xc_hash_t xc_var_hentry = { 0, 0, 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;
static char *xc_php_allocator = NULL;
static char *xc_var_allocator = NULL;
/* 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 *old_compile_file = NULL;
static zend_bool xc_readonly_protection = 0;
static zend_ulong xc_var_namespace_mode = 0;
static char *xc_var_namespace = NULL;
zend_bool xc_have_op_array_ctor = 0;
/* }}} */
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_cached_t *cached, xc_entry_data_php_t *php) /* {{{ */
{
xc_entry_data_php_t **head = &(cached->phps[php->hvalue]);
php->next = *head;
*head = php;
cached->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->shm, cache->allocator, php TSRMLS_CC);
if (stored_php) {
xc_php_add_unlocked(cache->cached, stored_php);
return stored_php;
}
else {
cache->cached->ooms ++;
return NULL;
}
}
/* }}} */
static xc_entry_data_php_t *xc_php_find_unlocked(xc_cached_t *cached, xc_entry_data_php_t *php TSRMLS_DC) /* {{{ */
{
xc_entry_data_php_t *p;
for (p = cached->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->allocator->vtable->free(cache->allocator, (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->cached->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 TSRMLS_DC) /* {{{ */
{
/* this function isn't required but can be in unlocked */
switch (type) {
case XC_TYPE_PHP:
{
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 && php_entry2->file_inode) {
zend_bool inodeIsSame = php_entry1->file_inode == php_entry2->file_inode
&& php_entry1->file_device == php_entry2->file_device;
if (XG(experimental)) {
/* new experimental behavior: quick check by inode, first */
if (!inodeIsSame) {
return 0;
}
/* and then opened_path compare */
}
else {
/* old behavior: inode check only */
return inodeIsSame;
}
}
}
assert(strstr(entry1->name.str.val, "://") != NULL || IS_ABSOLUTE_PATH(entry1->name.str.val, entry1->name.str.len));
assert(strstr(entry1->name.str.val, "://") != NULL || IS_ABSOLUTE_PATH(entry2->name.str.val, entry2->name.str.len));
return entry1->name.str.len == entry2->name.str.len
&& 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;
}
if (entry1->name_type == IS_UNICODE) {
return entry1->name.ustr.len == entry2->name.ustr.len
&& memcmp(entry1->name.ustr.val, entry2->name.ustr.val, (entry1->name.ustr.len + 1) * sizeof(entry1->name.ustr.val[0])) == 0;
}
#endif
return entry1->name.str.len == entry2->name.str.len
&& memcmp(entry1->name.str.val, entry2->name.str.val, entry1->name.str.len + 1) == 0;
break;
default:
assert(0);
}
return 0;
}
/* }}} */
static void xc_entry_add_unlocked(xc_cached_t *cached, xc_hash_value_t entryslotid, xc_entry_t *entry) /* {{{ */
{
xc_entry_t **head = &(cached->entries[entryslotid]);
entry->next = *head;
*head = entry;
cached->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->shm, cache->allocator, (xc_entry_php_t *) entry TSRMLS_CC)
: (xc_entry_t *) xc_processor_store_xc_entry_var_t(cache->shm, cache->allocator, (xc_entry_var_t *) entry TSRMLS_CC);
if (stored_entry) {
xc_entry_add_unlocked(cache->cached, entryslotid, stored_entry);
++cache->cached->updates;
return stored_entry;
}
else {
cache->cached->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->allocator->vtable->free(cache->allocator, (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->cached->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->cached->deletes;
cache->cached->deletes = entry;
entry->dtime = XG(request_time);
cache->cached->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->cached->entries[entryslotid]);
xc_entry_t *p;
for (p = *pp; p; pp = &(p->next), p = p->next) {
if (xc_entry_equal_unlocked(type, entry, p TSRMLS_CC)) {
/* 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->cached->entries[entryslotid]; p; p = p->next) {
if (xc_entry_equal_unlocked(type, entry, p TSRMLS_CC)) {
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 inline void xc_counters_inc(time_t *curtime, zend_uint *curslot, time_t interval, zend_ulong *counters, zend_uint count TSRMLS_DC) /* {{{ */
{
time_t n = XG(request_time) / interval;
if (*curtime != n) {
zend_uint target_slot = n % count;
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 inline void xc_cached_hit_unlocked(xc_cached_t *cached TSRMLS_DC) /* {{{ */
{
cached->hits ++;
xc_counters_inc(&cached->hits_by_hour_cur_time
, &cached->hits_by_hour_cur_slot, 60 * 60
, cached->hits_by_hour
, sizeof(cached->hits_by_hour) / sizeof(cached->hits_by_hour[0])
TSRMLS_CC);
xc_counters_inc(&cached->hits_by_second_cur_time
, &cached->hits_by_second_cur_slot, 1
, cached->hits_by_second
, sizeof(cached->hits_by_second) / sizeof(cached->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->cached->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->cached->last_gc_expires, gc_interval);
if (!cache->cached->disabled && XG(request_time) >= cache->cached->last_gc_expires + (time_t) gc_interval) {
ENTER_LOCK(cache) {
if (XG(request_time) >= cache->cached->last_gc_expires + (time_t) gc_interval) {
cache->cached->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) /* {{{ */
{
size_t 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->cached->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->cached->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->cached->disabled && cache->cached->deletes && XG(request_time) - cache->cached->last_gc_deletes > xc_deletes_gc_interval) {
ENTER_LOCK(cache) {
if (cache->cached->deletes && XG(request_time) - cache->cached->last_gc_deletes > xc_deletes_gc_interval) {
cache->cached->last_gc_deletes = XG(request_time);
xc_gc_delete_unlocked(cache TSRMLS_CC);
}
} LEAVE_LOCK(cache);
}
}
/* }}} */
static void xc_gc_deletes(TSRMLS_D) /* {{{ */
{
size_t 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;
size_t i;
const xc_allocator_block_t *b;
#ifndef NDEBUG
xc_memsize_t avail = 0;
#endif
const xc_allocator_t *allocator = cache->allocator;
const xc_allocator_vtable_t *vtable = allocator->vtable;
zend_ulong interval;
const xc_cached_t *cached = cache->cached;
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"), cached->compiling);
add_assoc_long_ex(return_value, ZEND_STRS("disabled"), cached->disabled);
add_assoc_long_ex(return_value, ZEND_STRS("updates"), cached->updates);
add_assoc_long_ex(return_value, ZEND_STRS("misses"), cached->updates); /* deprecated */
add_assoc_long_ex(return_value, ZEND_STRS("hits"), cached->hits);
add_assoc_long_ex(return_value, ZEND_STRS("skips"), cached->skips);
add_assoc_long_ex(return_value, ZEND_STRS("clogs"), cached->skips); /* deprecated */
add_assoc_long_ex(return_value, ZEND_STRS("ooms"), cached->ooms);
add_assoc_long_ex(return_value, ZEND_STRS("errors"), cached->errors);
add_assoc_long_ex(return_value, ZEND_STRS("cached"), cached->entries_count);
add_assoc_long_ex(return_value, ZEND_STRS("deleted"), cached->deletes_count);
if (interval) {
time_t gc = (cached->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(cached->hits_by_hour) / sizeof(cached->hits_by_hour[0]); i ++) {
add_next_index_long(hits, (long) cached->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(cached->hits_by_second) / sizeof(cached->hits_by_second[0]); i ++) {
add_next_index_long(hits, (long) cached->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"), vtable->size(allocator));
add_assoc_long_ex(return_value, ZEND_STRS("avail"), vtable->avail(allocator));
add_assoc_bool_ex(return_value, ZEND_STRS("can_readonly"), xc_readonly_protection);
for (b = vtable->freeblock_first(allocator); b; b = vtable->freeblock_next(b)) {
zval *bi;
MAKE_STD_ZVAL(bi);
array_init(bi);
add_assoc_long_ex(bi, ZEND_STRS("size"), vtable->block_size(b));
add_assoc_long_ex(bi, ZEND_STRS("offset"), vtable->block_offset(allocator, b));
add_next_index_zval(blocks, bi);
#ifndef NDEBUG
avail += vtable->block_size(b);
#endif
}
add_assoc_zval_ex(return_value, ZEND_STRS("free_blocks"), blocks);
#ifndef NDEBUG
assert(avail == vtable->avail(allocator));
#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);
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);
#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->cached->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->cached->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 **)xc_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
xc_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, size_t cachecount TSRMLS_DC) /* {{{ */
{
size_t 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);
assert(entry_php->refcount > 0);
--entry_php->refcount;
}
} 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) int name(const char *filepath, size_t filepath_len, void *data TSRMLS_DC)
typedef XC_RESOLVE_PATH_CHECKER((*xc_resolve_path_checker_func_t));
static int 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 == '.' &&