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144 lines
4.0 KiB
C
144 lines
4.0 KiB
C
/*
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+----------------------------------------------------------------------+
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| Thread Safe Resource Manager |
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+----------------------------------------------------------------------+
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| Copyright (c) 1999, 2000, Andi Gutmans, Sascha Schumann, Zeev Suraski|
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| This source file is subject to the TSRM license, that is bundled |
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| with this package in the file LICENSE |
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+----------------------------------------------------------------------+
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| Authors: Zeev Suraski <zeev@zend.com> |
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+----------------------------------------------------------------------+
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*/
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#ifndef TSRM_H
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#define TSRM_H
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#ifndef WIN32
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# include "tsrm_config.h"
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#endif
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#ifdef WIN32
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# define TSRM_WIN32
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#endif
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#ifdef TSRM_WIN32
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# ifdef TSRM_EXPORTS
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# define TSRM_API __declspec(dllexport)
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# else
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# define TSRM_API __declspec(dllimport)
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# endif
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#else
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# define TSRM_API
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#endif
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/* Only compile multi-threading functions if we're in ZTS mode */
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#ifdef ZTS
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#ifdef TSRM_WIN32
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# include <windows.h>
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#elif defined(GNUPTH)
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# include <pth.h>
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#elif defined(PTHREADS)
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# include <pthread.h>
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#elif defined(TSRM_ST)
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# include <st.h>
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#endif
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typedef int ts_rsrc_id;
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/* Define THREAD_T and MUTEX_T */
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#ifdef TSRM_WIN32
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# define THREAD_T DWORD
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# define MUTEX_T CRITICAL_SECTION *
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#elif defined(GNUPTH)
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# define THREAD_T pth_t
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# define MUTEX_T pth_mutex_t *
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#elif defined(PTHREADS)
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# define THREAD_T pthread_t
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# define MUTEX_T pthread_mutex_t *
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#elif defined(NSAPI)
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# define THREAD_T SYS_THREAD
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# define MUTEX_T CRITICAL
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#elif defined(PI3WEB)
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# define THREAD_T PIThread *
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# define MUTEX_T PISync *
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#elif defined(TSRM_ST)
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# define THREAD_T st_thread_t
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# define MUTEX_T st_mutex_t
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#endif
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typedef void (*ts_allocate_ctor)(void *, void ***);
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typedef void (*ts_allocate_dtor)(void *, void ***);
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#define THREAD_HASH_OF(thr,ts) (unsigned long)thr%(unsigned long)ts
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#ifdef __cplusplus
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extern "C" {
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#endif
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/* startup/shutdown */
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TSRM_API int tsrm_startup(int expected_threads, int expected_resources, int debug_level, char *debug_filename);
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TSRM_API void tsrm_shutdown(void);
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/* allocates a new thread-safe-resource id */
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TSRM_API ts_rsrc_id ts_allocate_id(ts_rsrc_id *rsrc_id, size_t size, ts_allocate_ctor ctor, ts_allocate_dtor dtor);
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/* fetches the requested resource for the current thread */
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TSRM_API void *ts_resource_ex(ts_rsrc_id id, THREAD_T *th_id);
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#define ts_resource(id) ts_resource_ex(id, NULL)
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/* frees all resources allocated for the current thread */
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TSRM_API void ts_free_thread(void);
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/* deallocates all occurrences of a given id */
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TSRM_API void ts_free_id(ts_rsrc_id id);
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/* Debug support */
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#define TSRM_ERROR_LEVEL_ERROR 1
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#define TSRM_ERROR_LEVEL_CORE 2
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#define TSRM_ERROR_LEVEL_INFO 3
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typedef void (*tsrm_thread_begin_func_t)(THREAD_T thread_id, void ***tsrm_ls);
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typedef void (*tsrm_thread_end_func_t)(THREAD_T thread_id, void ***tsrm_ls);
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TSRM_API int tsrm_error(int level, const char *format, ...);
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TSRM_API void tsrm_error_set(int level, char *debug_filename);
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/* utility functions */
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TSRM_API THREAD_T tsrm_thread_id(void);
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TSRM_API MUTEX_T tsrm_mutex_alloc(void);
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TSRM_API void tsrm_mutex_free(MUTEX_T mutexp);
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TSRM_API int tsrm_mutex_lock(MUTEX_T mutexp);
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TSRM_API int tsrm_mutex_unlock(MUTEX_T mutexp);
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TSRM_API void *tsrm_set_new_thread_begin_handler(tsrm_thread_begin_func_t new_thread_begin_handler);
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TSRM_API void *tsrm_set_new_thread_end_handler(tsrm_thread_end_func_t new_thread_end_handler);
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#define TSRM_SHUFFLE_RSRC_ID(rsrc_id) ((rsrc_id)+1)
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#define TSRM_UNSHUFFLE_RSRC_ID(rsrc_id) ((rsrc_id)-1)
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#define TSRMLS_FETCH() void ***tsrm_ls = (void ***) ts_resource_ex(0, NULL)
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#define TSRMG(id, type, element) (((type) (*((void ***) tsrm_ls))[TSRM_UNSHUFFLE_RSRC_ID(id)])->element)
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#define TSRMLS_D void ***tsrm_ls
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#define TSRMLS_DC , TSRMLS_D
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#define TSRMLS_C tsrm_ls
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#define TSRMLS_CC , TSRMLS_C
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#ifdef __cplusplus
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}
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#endif
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#else /* non ZTS */
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#define TSRMLS_FETCH()
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#define TSRMLS_D void
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#define TSRMLS_DC
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#define TSRMLS_C
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#define TSRMLS_CC
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#endif /* ZTS */
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#endif /* TSRM_H */
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