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closes #2: auto disable on crash 

git-svn-id: svn://svn.lighttpd.net/xcache/trunk@979 c26eb9a1-5813-0410-bd6c-c2e55f420ca7
3.0
Xuefer 10 years ago
parent
1a087fb7e8
commit
e53af1f7b4
6 changed files with 51 additions and 32 deletions
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  1. 6
      ChangeLog
  2. 1
      NEWS
  3. 1
      mmap.c
  4. 1
      xc_shm.h
  5. 72
      xcache.c
  6. 2
      xcache.ini

6
ChangeLog
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@ -2,8 +2,14 @@
API Changes
========
* chg: proto array xcache_clear_cache(int type, [ int id = -1 ]). -1 means all cache splits
Ini Settings Changes
========
* new: xcache.disable_on_crash = Off
ChangeLog
========
* closes #2: auto disable caching on crash
* closes #972: warning/error when XCache is loaded incorrectly
* closes #73: warn for improper PHP_FCGI_CHILDREN setting fcgi mode (>=PHP_5_3)
* closes #174: updated api for clear all cache

1
NEWS
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@ -2,6 +2,7 @@
========
* improvements
* adds warning for misconfiguration
* auto disable caching on crash
2.0.1 2012-07-14
========

1
mmap.c
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@ -40,6 +40,7 @@
/* {{{ xc_shm_t */
struct _xc_mmap_shm_t {
xc_shm_handlers_t *handlers;
zend_bool disabled;
void *ptr;
void *ptr_ro;
long diff;

1
xc_shm.h
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@ -5,6 +5,7 @@ typedef struct _xc_shm_handlers_t xc_shm_handlers_t;
#ifndef XC_SHM_IMPL
struct _xc_shm_t {
const xc_shm_handlers_t *handlers;
zend_bool disabled;
};
#define XC_SHM_IMPL _xc_shm_t
#endif

72
xcache.c
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@ -69,6 +69,7 @@
static char *xc_shm_scheme = NULL;
static char *xc_mmap_path = NULL;
static char *xc_coredump_dir = NULL;
static zend_bool xc_disable_on_crash = 0;
static xc_hash_t xc_php_hcache = { 0 };
static xc_hash_t xc_php_hentry = { 0 };
@ -86,6 +87,7 @@ static zend_ulong xc_var_gc_interval = 0;
static zend_ulong xc_php_size = 0;
static zend_ulong xc_var_size = 0;
static xc_shm_t *xc_shm = NULL;
static xc_cache_t **xc_php_caches = NULL;
static xc_cache_t **xc_var_caches = NULL;
@ -2154,6 +2156,7 @@ static zend_op_array *xc_compile_file(zend_file_handle *h, int type TSRMLS_DC) /
#else
|| strstr(PG(include_path), "://") != NULL
#endif
|| xc_shm || xc_shm->disabled
) {
TRACE("%s", "cacher not enabled");
return old_compile_file(h, type TSRMLS_CC);
@ -2303,16 +2306,15 @@ static int xc_init_constant(int module_number TSRMLS_DC) /* {{{ */
return 0;
}
/* }}} */
static xc_shm_t *xc_cache_destroy(xc_cache_t **caches, xc_hash_t *hcache) /* {{{ */
static void 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;
return;
}
shm = NULL;
for (i = 0; i < hcache->size; i ++) {
cache = caches[i];
if (cache) {
@ -2325,12 +2327,10 @@ static xc_shm_t *xc_cache_destroy(xc_cache_t **caches, xc_hash_t *hcache) /* {{{
}
cache->mem->handlers->free(cache->mem, cache);
*/
shm = cache->shm;
shm->handlers->memdestroy(cache->mem);
cache->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) /* {{{ */
@ -2386,8 +2386,6 @@ err:
/* }}} */
static void xc_destroy() /* {{{ */
{
xc_shm_t *shm = NULL;
if (old_compile_file) {
zend_compile_file = old_compile_file;
old_compile_file = NULL;
@ -2399,17 +2397,18 @@ static void xc_destroy() /* {{{ */
}
if (xc_php_caches) {
shm = xc_cache_destroy(xc_php_caches, &xc_php_hcache);
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_cache_destroy(xc_var_caches, &xc_var_hcache);
xc_var_caches = NULL;
}
if (shm) {
xc_shm_destroy(shm);
if (xc_shm) {
xc_shm_destroy(xc_shm);
xc_shm = NULL;
}
xc_initized = 0;
@ -2417,11 +2416,10 @@ static void xc_destroy() /* {{{ */
/* }}} */
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;
xc_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");
@ -2429,8 +2427,8 @@ static int xc_init(int module_number TSRMLS_DC) /* {{{ */
}
if (xc_php_size || xc_var_size) {
CHECK(shm = xc_shm_init(xc_shm_scheme, shmsize, xc_readonly_protection, xc_mmap_path, NULL), "Cannot create shm");
if (!shm->handlers->can_readonly(shm)) {
CHECK(xc_shm = xc_shm_init(xc_shm_scheme, shmsize, xc_readonly_protection, xc_mmap_path, NULL), "Cannot create shm");
if (!xc_shm->handlers->can_readonly(xc_shm)) {
xc_readonly_protection = 0;
}
@ -2438,11 +2436,11 @@ static int xc_init(int module_number TSRMLS_DC) /* {{{ */
old_compile_file = zend_compile_file;
zend_compile_file = xc_compile_file;
CHECK(xc_php_caches = xc_cache_init(shm, &xc_php_hcache, &xc_php_hentry, &xc_php_hentry, xc_php_size), "failed init opcode cache");
CHECK(xc_php_caches = xc_cache_init(xc_shm, &xc_php_hcache, &xc_php_hentry, &xc_php_hentry, xc_php_size), "failed init opcode cache");
}
if (xc_var_size) {
CHECK(xc_var_caches = xc_cache_init(shm, &xc_var_hcache, &xc_var_hentry, NULL, xc_var_size), "failed init variable cache");
CHECK(xc_var_caches = xc_cache_init(xc_shm, &xc_var_hcache, &xc_var_hentry, NULL, xc_var_size), "failed init variable cache");
}
}
return SUCCESS;
@ -2452,9 +2450,10 @@ err:
xc_destroy();
/* shm destroied in xc_destroy() */
}
else if (shm) {
else if (xc_shm) {
xc_destroy();
xc_shm_destroy(shm);
xc_shm_destroy(xc_shm);
xc_shm = NULL;
}
return 0;
}
@ -2518,13 +2517,15 @@ static void xc_request_init(TSRMLS_D) /* {{{ */
/* }}} */
static void xc_request_shutdown(TSRMLS_D) /* {{{ */
{
xc_entry_unholds(TSRMLS_C);
if (xc_shm && !xc_shm->disabled) {
xc_entry_unholds(TSRMLS_C);
xc_gc_expires_php(TSRMLS_C);
xc_gc_expires_var(TSRMLS_C);
xc_gc_deletes(TSRMLS_C);
}
#ifdef ZEND_ENGINE_2
zend_llist_destroy(&XG(gc_op_arrays));
#endif
xc_gc_expires_php(TSRMLS_C);
xc_gc_expires_var(TSRMLS_C);
xc_gc_deletes(TSRMLS_C);
#ifdef HAVE_XCACHE_COVERAGER
xc_coverager_request_shutdown(TSRMLS_C);
#endif
@ -2708,7 +2709,7 @@ static void xcache_admin_operate(xcache_op_type optype, INTERNAL_FUNCTION_PARAME
xcache_admin_auth_check(TSRMLS_C);
if (!xc_initized) {
if (!xc_initized || !xc_shm || xc_shm->disabled) {
RETURN_NULL();
}
@ -2866,7 +2867,7 @@ PHP_FUNCTION(xcache_get)
xc_entry_var_t entry_var, *stored_entry_var;
zval *name;
if (!xc_var_caches) {
if (!xc_var_caches || !xc_shm || xc_shm->disabled) {
VAR_DISABLED_WARNING();
RETURN_NULL();
}
@ -2900,7 +2901,7 @@ PHP_FUNCTION(xcache_set)
zval *name;
zval *value;
if (!xc_var_caches) {
if (!xc_var_caches || !xc_shm || xc_shm->disabled) {
VAR_DISABLED_WARNING();
RETURN_NULL();
}
@ -2942,7 +2943,7 @@ PHP_FUNCTION(xcache_isset)
xc_entry_var_t entry_var, *stored_entry_var;
zval *name;
if (!xc_var_caches) {
if (!xc_var_caches || !xc_shm || xc_shm->disabled) {
VAR_DISABLED_WARNING();
RETURN_FALSE;
}
@ -2976,7 +2977,7 @@ PHP_FUNCTION(xcache_unset)
xc_entry_var_t entry_var, *stored_entry_var;
zval *name;
if (!xc_var_caches) {
if (!xc_var_caches || !xc_shm || xc_shm->disabled) {
VAR_DISABLED_WARNING();
RETURN_FALSE;
}
@ -3006,7 +3007,7 @@ PHP_FUNCTION(xcache_unset_by_prefix)
zval *prefix;
int i, iend;
if (!xc_var_caches) {
if (!xc_var_caches || !xc_shm || xc_shm->disabled) {
VAR_DISABLED_WARNING();
RETURN_FALSE;
}
@ -3042,7 +3043,7 @@ static inline void xc_var_inc_dec(int inc, INTERNAL_FUNCTION_PARAMETERS) /* {{{
long value = 0;
zval oldzval;
if (!xc_var_caches) {
if (!xc_var_caches || !xc_shm || xc_shm->disabled) {
VAR_DISABLED_WARNING();
RETURN_NULL();
}
@ -3553,6 +3554,12 @@ static void xcache_signal_handler(int sig) /* {{{ */
* and should'nt print anything which might SEGV again */
}
}
if (xc_disable_on_crash) {
xc_disable_on_crash = 0;
if (xc_shm) {
xc_shm->disabled = 1;
}
}
raise(sig);
}
/* }}} */
@ -3609,6 +3616,7 @@ static PHP_INI_MH(xc_OnUpdateString)
PHP_INI_BEGIN()
PHP_INI_ENTRY1 ("xcache.mmap_path", DEFAULT_PATH, PHP_INI_SYSTEM, xc_OnUpdateString, &xc_mmap_path)
PHP_INI_ENTRY1 ("xcache.coredump_directory", "", PHP_INI_SYSTEM, xc_OnUpdateString, &xc_coredump_dir)
PHP_INI_ENTRY1 ("xcache.disable_on_crash", "0", PHP_INI_SYSTEM, xc_OnUpdateBool, &xc_disable_on_crash)
PHP_INI_ENTRY1 ("xcache.test", "0", PHP_INI_SYSTEM, xc_OnUpdateBool, &xc_test)
PHP_INI_ENTRY1 ("xcache.readonly_protection", "0", PHP_INI_SYSTEM, xc_OnUpdateBool, &xc_readonly_protection)
/* opcode cache */

2
xcache.ini
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@ -57,6 +57,8 @@ xcache.mmap_path = "/dev/zero"
; leave it blank(disabled) or "/tmp/phpcore/"
; make sure it's writable by php (open_basedir is not checked)
xcache.coredump_directory = ""
; disable cache after crash until restart. (non-Win32 only)
xcache.disable_on_crash = Off
; enable experimental documented features for each release if available
xcache.experimental = Off

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