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b189c2432a
The C89 standard and later defines the `<stdarg.h>` header as part of the standard headers [1]. On current systems it is always present and can be included unconditionally. Checking for presence and functionality of the `<stdarg.h>` header and variadic function is not relevant anymore on current systems since this is always available. Also Autoconf suggests relying on at least C89 or above [2] and [3]. The following files were regenerated with re2c 1.0.3: - Zend/zend_language_scanner.c - Zend/zend_language_scanner_defs.h Refs: [1] https://port70.net/~nsz/c/c89/c89-draft.html#4.1.2 [2] http://git.savannah.gnu.org/cgit/autoconf.git/tree/lib/autoconf/headers.m4 [3] https://www.gnu.org/software/autoconf/manual/autoconf-2.69/autoconf.html
806 lines
21 KiB
C
806 lines
21 KiB
C
/*
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+----------------------------------------------------------------------+
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| Thread Safe Resource Manager |
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+----------------------------------------------------------------------+
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| Copyright (c) 1999-2011, 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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#include "TSRM.h"
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#ifdef ZTS
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#include <stdio.h>
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#include <stdarg.h>
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typedef struct _tsrm_tls_entry tsrm_tls_entry;
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#if defined(TSRM_WIN32)
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/* TSRMLS_CACHE_DEFINE; is already done in Zend, this is being always compiled statically. */
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#endif
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struct _tsrm_tls_entry {
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void **storage;
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int count;
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THREAD_T thread_id;
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tsrm_tls_entry *next;
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};
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typedef struct {
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size_t size;
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ts_allocate_ctor ctor;
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ts_allocate_dtor dtor;
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int done;
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} tsrm_resource_type;
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/* The memory manager table */
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static tsrm_tls_entry **tsrm_tls_table=NULL;
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static int tsrm_tls_table_size;
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static ts_rsrc_id id_count;
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/* The resource sizes table */
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static tsrm_resource_type *resource_types_table=NULL;
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static int resource_types_table_size;
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static MUTEX_T tsmm_mutex; /* thread-safe memory manager mutex */
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/* New thread handlers */
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static tsrm_thread_begin_func_t tsrm_new_thread_begin_handler = NULL;
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static tsrm_thread_end_func_t tsrm_new_thread_end_handler = NULL;
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static tsrm_shutdown_func_t tsrm_shutdown_handler = NULL;
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/* Debug support */
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int tsrm_error(int level, const char *format, ...);
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/* Read a resource from a thread's resource storage */
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static int tsrm_error_level;
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static FILE *tsrm_error_file;
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#if TSRM_DEBUG
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#define TSRM_ERROR(args) tsrm_error args
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#define TSRM_SAFE_RETURN_RSRC(array, offset, range) \
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{ \
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int unshuffled_offset = TSRM_UNSHUFFLE_RSRC_ID(offset); \
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\
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if (offset==0) { \
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return &array; \
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} else if ((unshuffled_offset)>=0 && (unshuffled_offset)<(range)) { \
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TSRM_ERROR((TSRM_ERROR_LEVEL_INFO, "Successfully fetched resource id %d for thread id %ld - 0x%0.8X", \
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unshuffled_offset, (long) thread_resources->thread_id, array[unshuffled_offset])); \
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return array[unshuffled_offset]; \
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} else { \
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TSRM_ERROR((TSRM_ERROR_LEVEL_ERROR, "Resource id %d is out of range (%d..%d)", \
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unshuffled_offset, TSRM_SHUFFLE_RSRC_ID(0), TSRM_SHUFFLE_RSRC_ID(thread_resources->count-1))); \
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return NULL; \
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} \
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}
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#else
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#define TSRM_ERROR(args)
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#define TSRM_SAFE_RETURN_RSRC(array, offset, range) \
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if (offset==0) { \
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return &array; \
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} else { \
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return array[TSRM_UNSHUFFLE_RSRC_ID(offset)]; \
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}
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#endif
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#if defined(GNUPTH)
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static pth_key_t tls_key;
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# define tsrm_tls_set(what) pth_key_setdata(tls_key, (void*)(what))
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# define tsrm_tls_get() pth_key_getdata(tls_key)
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#elif defined(PTHREADS)
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/* Thread local storage */
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static pthread_key_t tls_key;
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# define tsrm_tls_set(what) pthread_setspecific(tls_key, (void*)(what))
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# define tsrm_tls_get() pthread_getspecific(tls_key)
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#elif defined(TSRM_ST)
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static int tls_key;
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# define tsrm_tls_set(what) st_thread_setspecific(tls_key, (void*)(what))
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# define tsrm_tls_get() st_thread_getspecific(tls_key)
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#elif defined(TSRM_WIN32)
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static DWORD tls_key;
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# define tsrm_tls_set(what) TlsSetValue(tls_key, (void*)(what))
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# define tsrm_tls_get() TlsGetValue(tls_key)
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#else
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# define tsrm_tls_set(what)
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# define tsrm_tls_get() NULL
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# warning tsrm_set_interpreter_context is probably broken on this platform
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#endif
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TSRM_TLS uint8_t in_main_thread = 0;
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/* Startup TSRM (call once for the entire process) */
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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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{/*{{{*/
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#if defined(GNUPTH)
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pth_init();
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pth_key_create(&tls_key, 0);
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#elif defined(PTHREADS)
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pthread_key_create( &tls_key, 0 );
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#elif defined(TSRM_ST)
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st_init();
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st_key_create(&tls_key, 0);
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#elif defined(TSRM_WIN32)
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tls_key = TlsAlloc();
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#endif
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/* ensure singleton */
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in_main_thread = 1;
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tsrm_error_file = stderr;
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tsrm_error_set(debug_level, debug_filename);
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tsrm_tls_table_size = expected_threads;
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tsrm_tls_table = (tsrm_tls_entry **) calloc(tsrm_tls_table_size, sizeof(tsrm_tls_entry *));
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if (!tsrm_tls_table) {
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TSRM_ERROR((TSRM_ERROR_LEVEL_ERROR, "Unable to allocate TLS table"));
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return 0;
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}
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id_count=0;
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resource_types_table_size = expected_resources;
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resource_types_table = (tsrm_resource_type *) calloc(resource_types_table_size, sizeof(tsrm_resource_type));
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if (!resource_types_table) {
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TSRM_ERROR((TSRM_ERROR_LEVEL_ERROR, "Unable to allocate resource types table"));
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free(tsrm_tls_table);
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tsrm_tls_table = NULL;
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return 0;
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}
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tsmm_mutex = tsrm_mutex_alloc();
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TSRM_ERROR((TSRM_ERROR_LEVEL_CORE, "Started up TSRM, %d expected threads, %d expected resources", expected_threads, expected_resources));
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return 1;
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}/*}}}*/
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/* Shutdown TSRM (call once for the entire process) */
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TSRM_API void tsrm_shutdown(void)
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{/*{{{*/
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int i;
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if (!in_main_thread) {
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/* ensure singleton */
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return;
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}
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if (tsrm_tls_table) {
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for (i=0; i<tsrm_tls_table_size; i++) {
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tsrm_tls_entry *p = tsrm_tls_table[i], *next_p;
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while (p) {
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int j;
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next_p = p->next;
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for (j=0; j<p->count; j++) {
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if (p->storage[j]) {
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if (resource_types_table && !resource_types_table[j].done && resource_types_table[j].dtor) {
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resource_types_table[j].dtor(p->storage[j]);
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}
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free(p->storage[j]);
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}
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}
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free(p->storage);
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free(p);
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p = next_p;
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}
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}
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free(tsrm_tls_table);
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tsrm_tls_table = NULL;
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}
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if (resource_types_table) {
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free(resource_types_table);
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resource_types_table=NULL;
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}
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tsrm_mutex_free(tsmm_mutex);
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tsmm_mutex = NULL;
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TSRM_ERROR((TSRM_ERROR_LEVEL_CORE, "Shutdown TSRM"));
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if (tsrm_error_file!=stderr) {
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fclose(tsrm_error_file);
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}
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#if defined(GNUPTH)
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pth_kill();
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#elif defined(PTHREADS)
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pthread_setspecific(tls_key, 0);
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pthread_key_delete(tls_key);
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#elif defined(TSRM_WIN32)
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TlsFree(tls_key);
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#endif
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if (tsrm_shutdown_handler) {
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tsrm_shutdown_handler();
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}
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tsrm_new_thread_begin_handler = NULL;
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tsrm_new_thread_end_handler = NULL;
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tsrm_shutdown_handler = NULL;
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}/*}}}*/
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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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{/*{{{*/
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int i;
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TSRM_ERROR((TSRM_ERROR_LEVEL_CORE, "Obtaining a new resource id, %d bytes", size));
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tsrm_mutex_lock(tsmm_mutex);
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/* obtain a resource id */
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*rsrc_id = TSRM_SHUFFLE_RSRC_ID(id_count++);
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TSRM_ERROR((TSRM_ERROR_LEVEL_CORE, "Obtained resource id %d", *rsrc_id));
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/* store the new resource type in the resource sizes table */
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if (resource_types_table_size < id_count) {
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tsrm_resource_type *_tmp;
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_tmp = (tsrm_resource_type *) realloc(resource_types_table, sizeof(tsrm_resource_type)*id_count);
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if (!_tmp) {
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tsrm_mutex_unlock(tsmm_mutex);
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TSRM_ERROR((TSRM_ERROR_LEVEL_ERROR, "Unable to allocate storage for resource"));
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*rsrc_id = 0;
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return 0;
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}
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resource_types_table = _tmp;
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resource_types_table_size = id_count;
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}
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resource_types_table[TSRM_UNSHUFFLE_RSRC_ID(*rsrc_id)].size = size;
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resource_types_table[TSRM_UNSHUFFLE_RSRC_ID(*rsrc_id)].ctor = ctor;
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resource_types_table[TSRM_UNSHUFFLE_RSRC_ID(*rsrc_id)].dtor = dtor;
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resource_types_table[TSRM_UNSHUFFLE_RSRC_ID(*rsrc_id)].done = 0;
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/* enlarge the arrays for the already active threads */
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for (i=0; i<tsrm_tls_table_size; i++) {
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tsrm_tls_entry *p = tsrm_tls_table[i];
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while (p) {
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if (p->count < id_count) {
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int j;
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p->storage = (void *) realloc(p->storage, sizeof(void *)*id_count);
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for (j=p->count; j<id_count; j++) {
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p->storage[j] = (void *) malloc(resource_types_table[j].size);
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if (resource_types_table[j].ctor) {
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resource_types_table[j].ctor(p->storage[j]);
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}
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}
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p->count = id_count;
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}
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p = p->next;
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}
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}
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tsrm_mutex_unlock(tsmm_mutex);
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TSRM_ERROR((TSRM_ERROR_LEVEL_CORE, "Successfully allocated new resource id %d", *rsrc_id));
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return *rsrc_id;
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}/*}}}*/
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static void allocate_new_resource(tsrm_tls_entry **thread_resources_ptr, THREAD_T thread_id)
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{/*{{{*/
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int i;
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TSRM_ERROR((TSRM_ERROR_LEVEL_CORE, "Creating data structures for thread %x", thread_id));
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(*thread_resources_ptr) = (tsrm_tls_entry *) malloc(sizeof(tsrm_tls_entry));
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(*thread_resources_ptr)->storage = NULL;
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if (id_count > 0) {
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(*thread_resources_ptr)->storage = (void **) malloc(sizeof(void *)*id_count);
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}
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(*thread_resources_ptr)->count = id_count;
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(*thread_resources_ptr)->thread_id = thread_id;
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(*thread_resources_ptr)->next = NULL;
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/* Set thread local storage to this new thread resources structure */
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tsrm_tls_set(*thread_resources_ptr);
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if (tsrm_new_thread_begin_handler) {
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tsrm_new_thread_begin_handler(thread_id);
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}
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for (i=0; i<id_count; i++) {
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if (resource_types_table[i].done) {
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(*thread_resources_ptr)->storage[i] = NULL;
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} else
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{
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(*thread_resources_ptr)->storage[i] = (void *) malloc(resource_types_table[i].size);
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if (resource_types_table[i].ctor) {
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resource_types_table[i].ctor((*thread_resources_ptr)->storage[i]);
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}
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}
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}
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if (tsrm_new_thread_end_handler) {
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tsrm_new_thread_end_handler(thread_id);
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}
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tsrm_mutex_unlock(tsmm_mutex);
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}/*}}}*/
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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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{/*{{{*/
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THREAD_T thread_id;
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int hash_value;
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tsrm_tls_entry *thread_resources;
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if (!th_id) {
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/* Fast path for looking up the resources for the current
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* thread. Its used by just about every call to
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* ts_resource_ex(). This avoids the need for a mutex lock
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* and our hashtable lookup.
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*/
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thread_resources = tsrm_tls_get();
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if (thread_resources) {
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TSRM_ERROR((TSRM_ERROR_LEVEL_INFO, "Fetching resource id %d for current thread %d", id, (long) thread_resources->thread_id));
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/* Read a specific resource from the thread's resources.
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* This is called outside of a mutex, so have to be aware about external
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* changes to the structure as we read it.
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*/
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TSRM_SAFE_RETURN_RSRC(thread_resources->storage, id, thread_resources->count);
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}
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thread_id = tsrm_thread_id();
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} else {
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thread_id = *th_id;
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}
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TSRM_ERROR((TSRM_ERROR_LEVEL_INFO, "Fetching resource id %d for thread %ld", id, (long) thread_id));
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tsrm_mutex_lock(tsmm_mutex);
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hash_value = THREAD_HASH_OF(thread_id, tsrm_tls_table_size);
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thread_resources = tsrm_tls_table[hash_value];
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if (!thread_resources) {
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allocate_new_resource(&tsrm_tls_table[hash_value], thread_id);
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return ts_resource_ex(id, &thread_id);
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} else {
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do {
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if (thread_resources->thread_id == thread_id) {
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break;
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}
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if (thread_resources->next) {
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thread_resources = thread_resources->next;
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} else {
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allocate_new_resource(&thread_resources->next, thread_id);
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return ts_resource_ex(id, &thread_id);
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/*
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* thread_resources = thread_resources->next;
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* break;
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*/
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}
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} while (thread_resources);
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}
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tsrm_mutex_unlock(tsmm_mutex);
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/* Read a specific resource from the thread's resources.
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* This is called outside of a mutex, so have to be aware about external
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* changes to the structure as we read it.
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*/
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TSRM_SAFE_RETURN_RSRC(thread_resources->storage, id, thread_resources->count);
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}/*}}}*/
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/* frees an interpreter context. You are responsible for making sure that
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* it is not linked into the TSRM hash, and not marked as the current interpreter */
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void tsrm_free_interpreter_context(void *context)
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{/*{{{*/
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tsrm_tls_entry *next, *thread_resources = (tsrm_tls_entry*)context;
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int i;
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while (thread_resources) {
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next = thread_resources->next;
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for (i=0; i<thread_resources->count; i++) {
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if (resource_types_table[i].dtor) {
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resource_types_table[i].dtor(thread_resources->storage[i]);
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}
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}
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for (i=0; i<thread_resources->count; i++) {
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free(thread_resources->storage[i]);
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}
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free(thread_resources->storage);
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free(thread_resources);
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thread_resources = next;
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}
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}/*}}}*/
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void *tsrm_set_interpreter_context(void *new_ctx)
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{/*{{{*/
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tsrm_tls_entry *current;
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current = tsrm_tls_get();
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/* TODO: unlink current from the global linked list, and replace it
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* it with the new context, protected by mutex where/if appropriate */
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/* Set thread local storage to this new thread resources structure */
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tsrm_tls_set(new_ctx);
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/* return old context, so caller can restore it when they're done */
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return current;
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}/*}}}*/
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/* allocates a new interpreter context */
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void *tsrm_new_interpreter_context(void)
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{/*{{{*/
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tsrm_tls_entry *new_ctx, *current;
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THREAD_T thread_id;
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thread_id = tsrm_thread_id();
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tsrm_mutex_lock(tsmm_mutex);
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current = tsrm_tls_get();
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allocate_new_resource(&new_ctx, thread_id);
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/* switch back to the context that was in use prior to our creation
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* of the new one */
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return tsrm_set_interpreter_context(current);
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}/*}}}*/
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/* frees all resources allocated for the current thread */
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void ts_free_thread(void)
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{/*{{{*/
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tsrm_tls_entry *thread_resources;
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int i;
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THREAD_T thread_id = tsrm_thread_id();
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int hash_value;
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tsrm_tls_entry *last=NULL;
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tsrm_mutex_lock(tsmm_mutex);
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hash_value = THREAD_HASH_OF(thread_id, tsrm_tls_table_size);
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thread_resources = tsrm_tls_table[hash_value];
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while (thread_resources) {
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if (thread_resources->thread_id == thread_id) {
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for (i=0; i<thread_resources->count; i++) {
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if (resource_types_table[i].dtor) {
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resource_types_table[i].dtor(thread_resources->storage[i]);
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}
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}
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for (i=0; i<thread_resources->count; i++) {
|
|
free(thread_resources->storage[i]);
|
|
}
|
|
free(thread_resources->storage);
|
|
if (last) {
|
|
last->next = thread_resources->next;
|
|
} else {
|
|
tsrm_tls_table[hash_value] = thread_resources->next;
|
|
}
|
|
tsrm_tls_set(0);
|
|
free(thread_resources);
|
|
break;
|
|
}
|
|
if (thread_resources->next) {
|
|
last = thread_resources;
|
|
}
|
|
thread_resources = thread_resources->next;
|
|
}
|
|
tsrm_mutex_unlock(tsmm_mutex);
|
|
}/*}}}*/
|
|
|
|
|
|
/* frees all resources allocated for all threads except current */
|
|
void ts_free_worker_threads(void)
|
|
{/*{{{*/
|
|
tsrm_tls_entry *thread_resources;
|
|
int i;
|
|
THREAD_T thread_id = tsrm_thread_id();
|
|
int hash_value;
|
|
tsrm_tls_entry *last=NULL;
|
|
|
|
tsrm_mutex_lock(tsmm_mutex);
|
|
hash_value = THREAD_HASH_OF(thread_id, tsrm_tls_table_size);
|
|
thread_resources = tsrm_tls_table[hash_value];
|
|
|
|
while (thread_resources) {
|
|
if (thread_resources->thread_id != thread_id) {
|
|
for (i=0; i<thread_resources->count; i++) {
|
|
if (resource_types_table[i].dtor) {
|
|
resource_types_table[i].dtor(thread_resources->storage[i]);
|
|
}
|
|
}
|
|
for (i=0; i<thread_resources->count; i++) {
|
|
free(thread_resources->storage[i]);
|
|
}
|
|
free(thread_resources->storage);
|
|
if (last) {
|
|
last->next = thread_resources->next;
|
|
} else {
|
|
tsrm_tls_table[hash_value] = thread_resources->next;
|
|
}
|
|
free(thread_resources);
|
|
if (last) {
|
|
thread_resources = last->next;
|
|
} else {
|
|
thread_resources = tsrm_tls_table[hash_value];
|
|
}
|
|
} else {
|
|
if (thread_resources->next) {
|
|
last = thread_resources;
|
|
}
|
|
thread_resources = thread_resources->next;
|
|
}
|
|
}
|
|
tsrm_mutex_unlock(tsmm_mutex);
|
|
}/*}}}*/
|
|
|
|
|
|
/* deallocates all occurrences of a given id */
|
|
void ts_free_id(ts_rsrc_id id)
|
|
{/*{{{*/
|
|
int i;
|
|
int j = TSRM_UNSHUFFLE_RSRC_ID(id);
|
|
|
|
tsrm_mutex_lock(tsmm_mutex);
|
|
|
|
TSRM_ERROR((TSRM_ERROR_LEVEL_CORE, "Freeing resource id %d", id));
|
|
|
|
if (tsrm_tls_table) {
|
|
for (i=0; i<tsrm_tls_table_size; i++) {
|
|
tsrm_tls_entry *p = tsrm_tls_table[i];
|
|
|
|
while (p) {
|
|
if (p->count > j && p->storage[j]) {
|
|
if (resource_types_table && resource_types_table[j].dtor) {
|
|
resource_types_table[j].dtor(p->storage[j]);
|
|
}
|
|
free(p->storage[j]);
|
|
p->storage[j] = NULL;
|
|
}
|
|
p = p->next;
|
|
}
|
|
}
|
|
}
|
|
resource_types_table[j].done = 1;
|
|
|
|
tsrm_mutex_unlock(tsmm_mutex);
|
|
|
|
TSRM_ERROR((TSRM_ERROR_LEVEL_CORE, "Successfully freed resource id %d", id));
|
|
}/*}}}*/
|
|
|
|
|
|
|
|
|
|
/*
|
|
* Utility Functions
|
|
*/
|
|
|
|
/* Obtain the current thread id */
|
|
TSRM_API THREAD_T tsrm_thread_id(void)
|
|
{/*{{{*/
|
|
#ifdef TSRM_WIN32
|
|
return GetCurrentThreadId();
|
|
#elif defined(GNUPTH)
|
|
return pth_self();
|
|
#elif defined(PTHREADS)
|
|
return pthread_self();
|
|
#elif defined(TSRM_ST)
|
|
return st_thread_self();
|
|
#endif
|
|
}/*}}}*/
|
|
|
|
|
|
/* Allocate a mutex */
|
|
TSRM_API MUTEX_T tsrm_mutex_alloc(void)
|
|
{/*{{{*/
|
|
MUTEX_T mutexp;
|
|
#ifdef TSRM_WIN32
|
|
mutexp = malloc(sizeof(CRITICAL_SECTION));
|
|
InitializeCriticalSection(mutexp);
|
|
#elif defined(GNUPTH)
|
|
mutexp = (MUTEX_T) malloc(sizeof(*mutexp));
|
|
pth_mutex_init(mutexp);
|
|
#elif defined(PTHREADS)
|
|
mutexp = (pthread_mutex_t *)malloc(sizeof(pthread_mutex_t));
|
|
pthread_mutex_init(mutexp,NULL);
|
|
#elif defined(TSRM_ST)
|
|
mutexp = st_mutex_new();
|
|
#endif
|
|
#ifdef THR_DEBUG
|
|
printf("Mutex created thread: %d\n",mythreadid());
|
|
#endif
|
|
return( mutexp );
|
|
}/*}}}*/
|
|
|
|
|
|
/* Free a mutex */
|
|
TSRM_API void tsrm_mutex_free(MUTEX_T mutexp)
|
|
{/*{{{*/
|
|
if (mutexp) {
|
|
#ifdef TSRM_WIN32
|
|
DeleteCriticalSection(mutexp);
|
|
free(mutexp);
|
|
#elif defined(GNUPTH)
|
|
free(mutexp);
|
|
#elif defined(PTHREADS)
|
|
pthread_mutex_destroy(mutexp);
|
|
free(mutexp);
|
|
#elif defined(TSRM_ST)
|
|
st_mutex_destroy(mutexp);
|
|
#endif
|
|
}
|
|
#ifdef THR_DEBUG
|
|
printf("Mutex freed thread: %d\n",mythreadid());
|
|
#endif
|
|
}/*}}}*/
|
|
|
|
|
|
/*
|
|
Lock a mutex.
|
|
A return value of 0 indicates success
|
|
*/
|
|
TSRM_API int tsrm_mutex_lock(MUTEX_T mutexp)
|
|
{/*{{{*/
|
|
TSRM_ERROR((TSRM_ERROR_LEVEL_INFO, "Mutex locked thread: %ld", tsrm_thread_id()));
|
|
#ifdef TSRM_WIN32
|
|
EnterCriticalSection(mutexp);
|
|
return 0;
|
|
#elif defined(GNUPTH)
|
|
if (pth_mutex_acquire(mutexp, 0, NULL)) {
|
|
return 0;
|
|
}
|
|
return -1;
|
|
#elif defined(PTHREADS)
|
|
return pthread_mutex_lock(mutexp);
|
|
#elif defined(TSRM_ST)
|
|
return st_mutex_lock(mutexp);
|
|
#endif
|
|
}/*}}}*/
|
|
|
|
|
|
/*
|
|
Unlock a mutex.
|
|
A return value of 0 indicates success
|
|
*/
|
|
TSRM_API int tsrm_mutex_unlock(MUTEX_T mutexp)
|
|
{/*{{{*/
|
|
TSRM_ERROR((TSRM_ERROR_LEVEL_INFO, "Mutex unlocked thread: %ld", tsrm_thread_id()));
|
|
#ifdef TSRM_WIN32
|
|
LeaveCriticalSection(mutexp);
|
|
return 0;
|
|
#elif defined(GNUPTH)
|
|
if (pth_mutex_release(mutexp)) {
|
|
return 0;
|
|
}
|
|
return -1;
|
|
#elif defined(PTHREADS)
|
|
return pthread_mutex_unlock(mutexp);
|
|
#elif defined(TSRM_ST)
|
|
return st_mutex_unlock(mutexp);
|
|
#endif
|
|
}/*}}}*/
|
|
|
|
/*
|
|
Changes the signal mask of the calling thread
|
|
*/
|
|
#ifdef HAVE_SIGPROCMASK
|
|
TSRM_API int tsrm_sigmask(int how, const sigset_t *set, sigset_t *oldset)
|
|
{/*{{{*/
|
|
TSRM_ERROR((TSRM_ERROR_LEVEL_INFO, "Changed sigmask in thread: %ld", tsrm_thread_id()));
|
|
/* TODO: add support for other APIs */
|
|
#ifdef PTHREADS
|
|
return pthread_sigmask(how, set, oldset);
|
|
#else
|
|
return sigprocmask(how, set, oldset);
|
|
#endif
|
|
}/*}}}*/
|
|
#endif
|
|
|
|
|
|
TSRM_API void *tsrm_set_new_thread_begin_handler(tsrm_thread_begin_func_t new_thread_begin_handler)
|
|
{/*{{{*/
|
|
void *retval = (void *) tsrm_new_thread_begin_handler;
|
|
|
|
tsrm_new_thread_begin_handler = new_thread_begin_handler;
|
|
return retval;
|
|
}/*}}}*/
|
|
|
|
|
|
TSRM_API void *tsrm_set_new_thread_end_handler(tsrm_thread_end_func_t new_thread_end_handler)
|
|
{/*{{{*/
|
|
void *retval = (void *) tsrm_new_thread_end_handler;
|
|
|
|
tsrm_new_thread_end_handler = new_thread_end_handler;
|
|
return retval;
|
|
}/*}}}*/
|
|
|
|
|
|
TSRM_API void *tsrm_set_shutdown_handler(tsrm_shutdown_func_t shutdown_handler)
|
|
{/*{{{*/
|
|
void *retval = (void *) tsrm_shutdown_handler;
|
|
|
|
tsrm_shutdown_handler = shutdown_handler;
|
|
return retval;
|
|
}/*}}}*/
|
|
|
|
|
|
/*
|
|
* Debug support
|
|
*/
|
|
|
|
#if TSRM_DEBUG
|
|
int tsrm_error(int level, const char *format, ...)
|
|
{/*{{{*/
|
|
if (level<=tsrm_error_level) {
|
|
va_list args;
|
|
int size;
|
|
|
|
fprintf(tsrm_error_file, "TSRM: ");
|
|
va_start(args, format);
|
|
size = vfprintf(tsrm_error_file, format, args);
|
|
va_end(args);
|
|
fprintf(tsrm_error_file, "\n");
|
|
fflush(tsrm_error_file);
|
|
return size;
|
|
} else {
|
|
return 0;
|
|
}
|
|
}/*}}}*/
|
|
#endif
|
|
|
|
|
|
void tsrm_error_set(int level, char *debug_filename)
|
|
{/*{{{*/
|
|
tsrm_error_level = level;
|
|
|
|
#if TSRM_DEBUG
|
|
if (tsrm_error_file!=stderr) { /* close files opened earlier */
|
|
fclose(tsrm_error_file);
|
|
}
|
|
|
|
if (debug_filename) {
|
|
tsrm_error_file = fopen(debug_filename, "w");
|
|
if (!tsrm_error_file) {
|
|
tsrm_error_file = stderr;
|
|
}
|
|
} else {
|
|
tsrm_error_file = stderr;
|
|
}
|
|
#endif
|
|
}/*}}}*/
|
|
|
|
TSRM_API void *tsrm_get_ls_cache(void)
|
|
{/*{{{*/
|
|
return tsrm_tls_get();
|
|
}/*}}}*/
|
|
|
|
TSRM_API uint8_t tsrm_is_main_thread(void)
|
|
{/*{{{*/
|
|
return in_main_thread;
|
|
}/*}}}*/
|
|
|
|
TSRM_API const char *tsrm_api_name(void)
|
|
{/*{{{*/
|
|
#if defined(GNUPTH)
|
|
return "GNU Pth";
|
|
#elif defined(PTHREADS)
|
|
return "POSIX Threads";
|
|
#elif defined(TSRM_ST)
|
|
return "State Threads";
|
|
#elif defined(TSRM_WIN32)
|
|
return "Windows Threads";
|
|
#else
|
|
return "Unknown";
|
|
#endif
|
|
}/*}}}*/
|
|
|
|
#endif /* ZTS */
|
|
|
|
/*
|
|
* Local variables:
|
|
* tab-width: 4
|
|
* c-basic-offset: 4
|
|
* End:
|
|
* vim600: sw=4 ts=4 fdm=marker
|
|
* vim<600: sw=4 ts=4
|
|
*/
|