mirror of
https://github.com/php/php-src.git
synced 2024-09-21 18:07:23 +00:00
201 lines
6.3 KiB
C
201 lines
6.3 KiB
C
/*
|
|
+----------------------------------------------------------------------+
|
|
| Thread Safe Resource Manager |
|
|
+----------------------------------------------------------------------+
|
|
| Copyright (c) 1999-2011, Andi Gutmans, Sascha Schumann, Zeev Suraski |
|
|
| This source file is subject to the TSRM license, that is bundled |
|
|
| with this package in the file LICENSE |
|
|
+----------------------------------------------------------------------+
|
|
| Authors: Zeev Suraski <zeev@php.net> |
|
|
+----------------------------------------------------------------------+
|
|
*/
|
|
|
|
#ifndef TSRM_H
|
|
#define TSRM_H
|
|
|
|
#if !defined(__CYGWIN__) && defined(WIN32)
|
|
# define TSRM_WIN32
|
|
# include "Zend/zend_config.w32.h"
|
|
#else
|
|
# include "main/php_config.h"
|
|
#endif
|
|
|
|
#include <stdint.h>
|
|
#include <stdbool.h>
|
|
|
|
#ifdef TSRM_WIN32
|
|
# ifdef TSRM_EXPORTS
|
|
# define TSRM_API __declspec(dllexport)
|
|
# else
|
|
# define TSRM_API __declspec(dllimport)
|
|
# endif
|
|
#elif defined(__GNUC__) && __GNUC__ >= 4
|
|
# define TSRM_API __attribute__ ((visibility("default")))
|
|
#else
|
|
# define TSRM_API
|
|
#endif
|
|
|
|
typedef intptr_t tsrm_intptr_t;
|
|
typedef uintptr_t tsrm_uintptr_t;
|
|
|
|
/* Only compile multi-threading functions if we're in ZTS mode */
|
|
#ifdef ZTS
|
|
|
|
#ifdef TSRM_WIN32
|
|
# ifndef TSRM_INCLUDE_FULL_WINDOWS_HEADERS
|
|
# define WIN32_LEAN_AND_MEAN
|
|
# endif
|
|
#else
|
|
# include <pthread.h>
|
|
#endif
|
|
|
|
#if SIZEOF_SIZE_T == 4
|
|
# define TSRM_ALIGNED_SIZE(size) \
|
|
(((size) + INT32_C(15)) & ~INT32_C(15))
|
|
#else
|
|
# define TSRM_ALIGNED_SIZE(size) \
|
|
(((size) + INT64_C(15)) & ~INT64_C(15))
|
|
#endif
|
|
|
|
typedef int ts_rsrc_id;
|
|
|
|
/* Define THREAD_T and MUTEX_T */
|
|
#ifdef TSRM_WIN32
|
|
# define THREAD_T DWORD
|
|
# define MUTEX_T CRITICAL_SECTION *
|
|
#else
|
|
# define THREAD_T pthread_t
|
|
# define MUTEX_T pthread_mutex_t *
|
|
#endif
|
|
|
|
#include <signal.h>
|
|
|
|
typedef void (*ts_allocate_ctor)(void *);
|
|
typedef void (*ts_allocate_dtor)(void *);
|
|
|
|
#define THREAD_HASH_OF(thr,ts) (unsigned long)thr%(unsigned long)ts
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
/* startup/shutdown */
|
|
TSRM_API bool tsrm_startup(int expected_threads, int expected_resources, int debug_level, const char *debug_filename);
|
|
TSRM_API void tsrm_shutdown(void);
|
|
|
|
/* environ lock API */
|
|
TSRM_API void tsrm_env_lock(void);
|
|
TSRM_API void tsrm_env_unlock(void);
|
|
|
|
/* allocates a new thread-safe-resource id */
|
|
TSRM_API ts_rsrc_id ts_allocate_id(ts_rsrc_id *rsrc_id, size_t size, ts_allocate_ctor ctor, ts_allocate_dtor dtor);
|
|
|
|
/* Fast resource in reserved (pre-allocated) space */
|
|
TSRM_API void tsrm_reserve(size_t size);
|
|
TSRM_API ts_rsrc_id ts_allocate_fast_id(ts_rsrc_id *rsrc_id, size_t *offset, size_t size, ts_allocate_ctor ctor, ts_allocate_dtor dtor);
|
|
|
|
/* fetches the requested resource for the current thread */
|
|
TSRM_API void *ts_resource_ex(ts_rsrc_id id, THREAD_T *th_id);
|
|
#define ts_resource(id) ts_resource_ex(id, NULL)
|
|
|
|
/* frees all resources allocated for the current thread */
|
|
TSRM_API void ts_free_thread(void);
|
|
|
|
/* deallocates all occurrences of a given id */
|
|
TSRM_API void ts_free_id(ts_rsrc_id id);
|
|
|
|
|
|
/* Debug support */
|
|
#define TSRM_ERROR_LEVEL_ERROR 1
|
|
#define TSRM_ERROR_LEVEL_CORE 2
|
|
#define TSRM_ERROR_LEVEL_INFO 3
|
|
|
|
typedef void (*tsrm_thread_begin_func_t)(THREAD_T thread_id);
|
|
typedef void (*tsrm_thread_end_func_t)(THREAD_T thread_id);
|
|
typedef void (*tsrm_shutdown_func_t)(void);
|
|
|
|
|
|
TSRM_API int tsrm_error(int level, const char *format, ...);
|
|
TSRM_API void tsrm_error_set(int level, const char *debug_filename);
|
|
|
|
/* utility functions */
|
|
TSRM_API THREAD_T tsrm_thread_id(void);
|
|
TSRM_API MUTEX_T tsrm_mutex_alloc(void);
|
|
TSRM_API void tsrm_mutex_free(MUTEX_T mutexp);
|
|
TSRM_API int tsrm_mutex_lock(MUTEX_T mutexp);
|
|
TSRM_API int tsrm_mutex_unlock(MUTEX_T mutexp);
|
|
#ifdef HAVE_SIGPROCMASK
|
|
TSRM_API int tsrm_sigmask(int how, const sigset_t *set, sigset_t *oldset);
|
|
#endif
|
|
|
|
TSRM_API void *tsrm_set_new_thread_begin_handler(tsrm_thread_begin_func_t new_thread_begin_handler);
|
|
TSRM_API void *tsrm_set_new_thread_end_handler(tsrm_thread_end_func_t new_thread_end_handler);
|
|
TSRM_API void *tsrm_set_shutdown_handler(tsrm_shutdown_func_t shutdown_handler);
|
|
|
|
TSRM_API void *tsrm_get_ls_cache(void);
|
|
TSRM_API size_t tsrm_get_ls_cache_tcb_offset(void);
|
|
TSRM_API bool tsrm_is_main_thread(void);
|
|
TSRM_API bool tsrm_is_shutdown(void);
|
|
TSRM_API const char *tsrm_api_name(void);
|
|
TSRM_API bool tsrm_is_managed_thread(void);
|
|
|
|
#ifdef TSRM_WIN32
|
|
# define TSRM_TLS __declspec(thread)
|
|
#else
|
|
# define TSRM_TLS __thread
|
|
#endif
|
|
|
|
#ifndef __has_attribute
|
|
# define __has_attribute(x) 0
|
|
#endif
|
|
|
|
#if !__has_attribute(tls_model) || defined(__FreeBSD__) || defined(__MUSL__) || defined(__HAIKU__)
|
|
# define TSRM_TLS_MODEL_ATTR
|
|
#elif __PIC__
|
|
# define TSRM_TLS_MODEL_ATTR __attribute__((tls_model("initial-exec")))
|
|
#else
|
|
# define TSRM_TLS_MODEL_ATTR __attribute__((tls_model("local-exec")))
|
|
#endif
|
|
|
|
#define TSRM_SHUFFLE_RSRC_ID(rsrc_id) ((rsrc_id)+1)
|
|
#define TSRM_UNSHUFFLE_RSRC_ID(rsrc_id) ((rsrc_id)-1)
|
|
|
|
#define TSRMG(id, type, element) (TSRMG_BULK(id, type)->element)
|
|
#define TSRMG_BULK(id, type) ((type) (*((void ***) tsrm_get_ls_cache()))[TSRM_UNSHUFFLE_RSRC_ID(id)])
|
|
#define TSRMG_FAST(offset, type, element) (TSRMG_FAST_BULK(offset, type)->element)
|
|
#define TSRMG_FAST_BULK(offset, type) ((type) (((char*) tsrm_get_ls_cache())+(offset)))
|
|
|
|
#define TSRMG_STATIC(id, type, element) (TSRMG_BULK_STATIC(id, type)->element)
|
|
#define TSRMG_BULK_STATIC(id, type) ((type) (*((void ***) TSRMLS_CACHE))[TSRM_UNSHUFFLE_RSRC_ID(id)])
|
|
#define TSRMG_FAST_STATIC(offset, type, element) (TSRMG_FAST_BULK_STATIC(offset, type)->element)
|
|
#define TSRMG_FAST_BULK_STATIC(offset, type) ((type) (((char*) TSRMLS_CACHE)+(offset)))
|
|
#define TSRMLS_MAIN_CACHE_EXTERN() extern TSRM_TLS void *TSRMLS_CACHE TSRM_TLS_MODEL_ATTR;
|
|
#define TSRMLS_MAIN_CACHE_DEFINE() TSRM_TLS void *TSRMLS_CACHE TSRM_TLS_MODEL_ATTR = NULL;
|
|
#define TSRMLS_CACHE_EXTERN() extern TSRM_TLS void *TSRMLS_CACHE;
|
|
#define TSRMLS_CACHE_DEFINE() TSRM_TLS void *TSRMLS_CACHE = NULL;
|
|
#define TSRMLS_CACHE_UPDATE() TSRMLS_CACHE = tsrm_get_ls_cache()
|
|
#define TSRMLS_CACHE _tsrm_ls_cache
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
#else /* non ZTS */
|
|
|
|
#define tsrm_env_lock()
|
|
#define tsrm_env_unlock()
|
|
|
|
#define TSRMG_STATIC(id, type, element)
|
|
#define TSRMLS_MAIN_CACHE_EXTERN()
|
|
#define TSRMLS_MAIN_CACHE_DEFINE()
|
|
#define TSRMLS_CACHE_EXTERN()
|
|
#define TSRMLS_CACHE_DEFINE()
|
|
#define TSRMLS_CACHE_UPDATE()
|
|
#define TSRMLS_CACHE
|
|
|
|
#define TSRM_TLS
|
|
|
|
#endif /* ZTS */
|
|
|
|
#endif /* TSRM_H */
|