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/* $Id: os_core_win32.c 3553 2011-05-05 06:14:19Z nanang $ */
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* Copyright (C) 2008-2011 Teluu Inc. (http://www.teluu.com)
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* Copyright (C) 2003-2008 Benny Prijono <benny@prijono.org>
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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#include <pj/string.h>
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#include <pj/assert.h>
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#include <pj/except.h>
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#if defined(PJ_HAS_WINSOCK_H) && PJ_HAS_WINSOCK_H != 0
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#if defined(PJ_HAS_WINSOCK2_H) && PJ_HAS_WINSOCK2_H != 0
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# include <winsock2.h>
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/* Activate mutex related logging if PJ_DEBUG_MUTEX is set, otherwise
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* use default level 6 logging.
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#if defined(PJ_DEBUG_MUTEX) && PJ_DEBUG_MUTEX
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# define LOG_MUTEX(expr) PJ_LOG(5,expr)
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# define LOG_MUTEX(expr) PJ_LOG(6,expr)
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#define THIS_FILE "os_core_win32.c"
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* Implementation of pj_thread_t.
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char obj_name[PJ_MAX_OBJ_NAME];
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#if defined(PJ_OS_HAS_CHECK_STACK) && PJ_OS_HAS_CHECK_STACK!=0
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pj_uint32_t stk_max_usage;
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const char *caller_file;
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* Implementation of pj_mutex_t.
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#if PJ_WIN32_WINNT >= 0x0400
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CRITICAL_SECTION crit;
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char obj_name[PJ_MAX_OBJ_NAME];
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* Implementation of pj_sem_t.
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typedef struct pj_sem_t
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char obj_name[PJ_MAX_OBJ_NAME];
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* Implementation of pj_event_t.
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char obj_name[PJ_MAX_OBJ_NAME];
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* Implementation of pj_atomic_t.
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* Static global variables.
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static pj_thread_desc main_thread;
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static long thread_tls_id = -1;
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static pj_mutex_t critical_section_mutex;
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static unsigned atexit_count;
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static void (*atexit_func[32])(void);
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* Some static prototypes.
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static pj_status_t init_mutex(pj_mutex_t *mutex, const char *name);
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PJ_DEF(pj_status_t) pj_init(void)
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char dummy_guid[32]; /* use maximum GUID length */
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if (WSAStartup(MAKEWORD(2,0), &wsa) != 0) {
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return PJ_RETURN_OS_ERROR(WSAGetLastError());
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/* Init this thread's TLS. */
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if ((rc=pj_thread_init()) != PJ_SUCCESS) {
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/* Init random seed. */
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/* Or probably not. Let application in charge of this */
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/* pj_srand( GetCurrentProcessId() ); */
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/* Initialize critical section. */
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if ((rc=init_mutex(&critical_section_mutex, "pj%p")) != PJ_SUCCESS)
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guid.ptr = dummy_guid;
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pj_generate_unique_string( &guid );
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/* Initialize exception ID for the pool.
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* Must do so after critical section is configured.
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rc = pj_exception_id_alloc("PJLIB/No memory", &PJ_NO_MEMORY_EXCEPTION);
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if (rc != PJ_SUCCESS)
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/* Startup timestamp */
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#if defined(PJ_HAS_HIGH_RES_TIMER) && PJ_HAS_HIGH_RES_TIMER != 0
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pj_timestamp dummy_ts;
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if ((rc=pj_get_timestamp_freq(&dummy_ts)) != PJ_SUCCESS) {
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if ((rc=pj_get_timestamp(&dummy_ts)) != PJ_SUCCESS) {
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PJ_LOG(4,(THIS_FILE, "pjlib %s for win32 initialized",
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PJ_DEF(pj_status_t) pj_atexit(void (*func)(void))
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if (atexit_count >= PJ_ARRAY_SIZE(atexit_func))
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atexit_func[atexit_count++] = func;
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PJ_DEF(void) pj_shutdown()
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/* Display stack usage */
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#if defined(PJ_OS_HAS_CHECK_STACK) && PJ_OS_HAS_CHECK_STACK!=0
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pj_thread_t *rec = (pj_thread_t*)main_thread;
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PJ_LOG(5,(rec->obj_name, "Main thread stack max usage=%u by %s:%d",
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rec->stk_max_usage, rec->caller_file, rec->caller_line));
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/* Call atexit() functions */
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for (i=atexit_count-1; i>=0; --i) {
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/* Free exception ID */
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if (PJ_NO_MEMORY_EXCEPTION != -1) {
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pj_exception_id_free(PJ_NO_MEMORY_EXCEPTION);
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PJ_NO_MEMORY_EXCEPTION = -1;
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/* Destroy PJLIB critical section */
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pj_mutex_destroy(&critical_section_mutex);
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if (thread_tls_id != -1) {
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pj_thread_local_free(thread_tls_id);
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/* Clear static variables */
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pj_errno_clear_handlers();
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/* Ticket #1132: Assertion when (re)starting PJLIB on different thread */
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pj_bzero(main_thread, sizeof(main_thread));
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/* Shutdown Winsock */
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PJ_DEF(pj_uint32_t) pj_getpid(void)
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return GetCurrentProcessId();
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* Check if this thread has been registered to PJLIB.
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PJ_DEF(pj_bool_t) pj_thread_is_registered(void)
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return pj_thread_local_get(thread_tls_id) != 0;
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* Get thread priority value for the thread.
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PJ_DEF(int) pj_thread_get_prio(pj_thread_t *thread)
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return GetThreadPriority(thread->hthread);
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* Set the thread priority.
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PJ_DEF(pj_status_t) pj_thread_set_prio(pj_thread_t *thread, int prio)
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PJ_ASSERT_RETURN(thread, PJ_EINVAL);
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PJ_ASSERT_RETURN(prio>=THREAD_PRIORITY_IDLE &&
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prio<=THREAD_PRIORITY_TIME_CRITICAL,
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if (SetThreadPriority(thread->hthread, prio) == FALSE)
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return PJ_RETURN_OS_ERROR(GetLastError());
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PJ_UNUSED_ARG(thread);
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pj_assert("pj_thread_set_prio() called in non-threading mode!");
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return PJ_EINVALIDOP;
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* Get the lowest priority value available on this system.
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PJ_DEF(int) pj_thread_get_prio_min(pj_thread_t *thread)
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PJ_UNUSED_ARG(thread);
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return THREAD_PRIORITY_IDLE;
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* Get the highest priority value available on this system.
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PJ_DEF(int) pj_thread_get_prio_max(pj_thread_t *thread)
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PJ_UNUSED_ARG(thread);
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return THREAD_PRIORITY_TIME_CRITICAL;
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* Get native thread handle
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PJ_DEF(void*) pj_thread_get_os_handle(pj_thread_t *thread)
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PJ_ASSERT_RETURN(thread, NULL);
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return thread->hthread;
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pj_assert("pj_thread_is_registered() called in non-threading mode!");
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* pj_thread_register(..)
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PJ_DEF(pj_status_t) pj_thread_register ( const char *cstr_thread_name,
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pj_thread_t **thread_ptr)
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pj_thread_t *thread = (pj_thread_t *)desc;
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pj_str_t thread_name = pj_str((char*)cstr_thread_name);
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/* Size sanity check. */
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if (sizeof(pj_thread_desc) < sizeof(pj_thread_t)) {
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pj_assert(!"Not enough pj_thread_desc size!");
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/* If a thread descriptor has been registered before, just return it. */
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if (pj_thread_local_get (thread_tls_id) != 0) {
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// 2006-02-26 bennylp:
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// This wouldn't work in all cases!.
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// If thread is created by external module (e.g. sound thread),
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// thread may be reused while the pool used for the thread descriptor
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// has been deleted by application.
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//*thread_ptr = (pj_thread_t*)pj_thread_local_get (thread_tls_id);
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/* Initialize and set the thread entry. */
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pj_bzero(desc, sizeof(struct pj_thread_t));
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thread->hthread = GetCurrentThread();
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thread->idthread = GetCurrentThreadId();
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#if defined(PJ_OS_HAS_CHECK_STACK) && PJ_OS_HAS_CHECK_STACK!=0
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thread->stk_start = &stack_ptr;
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thread->stk_size = 0xFFFFFFFFUL;
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thread->stk_max_usage = 0;
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if (cstr_thread_name && pj_strlen(&thread_name) < sizeof(thread->obj_name)-1)
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pj_ansi_snprintf(thread->obj_name, sizeof(thread->obj_name),
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cstr_thread_name, thread->idthread);
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pj_ansi_snprintf(thread->obj_name, sizeof(thread->obj_name),
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"thr%p", (void*)thread->idthread);
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rc = pj_thread_local_set(thread_tls_id, thread);
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if (rc != PJ_SUCCESS)
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*thread_ptr = thread;
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* pj_thread_init(void)
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pj_status_t pj_thread_init(void)
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rc = pj_thread_local_alloc(&thread_tls_id);
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if (rc != PJ_SUCCESS)
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return pj_thread_register("thr%p", main_thread, &thread);
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static DWORD WINAPI thread_main(void *param)
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pj_thread_t *rec = param;
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#if defined(PJ_OS_HAS_CHECK_STACK) && PJ_OS_HAS_CHECK_STACK!=0
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rec->stk_start = (char*)&rec;
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if (pj_thread_local_set(thread_tls_id, rec) != PJ_SUCCESS) {
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pj_assert(!"TLS is not set (pj_init() error?)");
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PJ_LOG(6,(rec->obj_name, "Thread started"));
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result = (*rec->proc)(rec->arg);
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PJ_LOG(6,(rec->obj_name, "Thread quitting"));
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#if defined(PJ_OS_HAS_CHECK_STACK) && PJ_OS_HAS_CHECK_STACK!=0
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PJ_LOG(5,(rec->obj_name, "Thread stack max usage=%u by %s:%d",
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rec->stk_max_usage, rec->caller_file, rec->caller_line));
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return (DWORD)result;
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* pj_thread_create(...)
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PJ_DEF(pj_status_t) pj_thread_create( pj_pool_t *pool,
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const char *thread_name,
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pj_thread_proc *proc,
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pj_size_t stack_size,
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pj_thread_t **thread_ptr)
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PJ_ASSERT_RETURN(pool && proc && thread_ptr, PJ_EINVAL);
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if (flags & PJ_THREAD_SUSPENDED)
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dwflags |= CREATE_SUSPENDED;
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/* Create thread record and assign name for the thread */
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rec = (struct pj_thread_t*) pj_pool_calloc(pool, 1, sizeof(pj_thread_t));
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thread_name = "thr%p";
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if (strchr(thread_name, '%')) {
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pj_ansi_snprintf(rec->obj_name, PJ_MAX_OBJ_NAME, thread_name, rec);
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pj_ansi_strncpy(rec->obj_name, thread_name, PJ_MAX_OBJ_NAME);
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rec->obj_name[PJ_MAX_OBJ_NAME-1] = '\0';
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PJ_LOG(6, (rec->obj_name, "Thread created"));
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#if defined(PJ_OS_HAS_CHECK_STACK) && PJ_OS_HAS_CHECK_STACK!=0
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rec->stk_size = stack_size ? stack_size : 0xFFFFFFFFUL;
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rec->stk_max_usage = 0;
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/* Create the thread. */
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rec->hthread = CreateThread(NULL, stack_size,
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dwflags, &rec->idthread);
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if (rec->hthread == NULL)
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return PJ_RETURN_OS_ERROR(GetLastError());
501
* pj_thread-get_name()
503
PJ_DEF(const char*) pj_thread_get_name(pj_thread_t *p)
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pj_thread_t *rec = (pj_thread_t*)p;
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PJ_ASSERT_RETURN(p, "");
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return rec->obj_name;
516
PJ_DEF(pj_status_t) pj_thread_resume(pj_thread_t *p)
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pj_thread_t *rec = (pj_thread_t*)p;
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PJ_ASSERT_RETURN(p, PJ_EINVAL);
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if (ResumeThread(rec->hthread) == (DWORD)-1)
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return PJ_RETURN_OS_ERROR(GetLastError());
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PJ_DEF(pj_thread_t*) pj_thread_this(void)
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pj_thread_t *rec = pj_thread_local_get(thread_tls_id);
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pj_assert(!"Calling pjlib from unknown/external thread. You must "
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"register external threads with pj_thread_register() "
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"before calling any pjlib functions.");
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* MUST NOT check stack because this function is called
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* by PJ_CHECK_STACK() itself!!!
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PJ_DEF(pj_status_t) pj_thread_join(pj_thread_t *p)
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pj_thread_t *rec = (pj_thread_t *)p;
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PJ_ASSERT_RETURN(p, PJ_EINVAL);
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PJ_LOG(6, (pj_thread_this()->obj_name, "Joining thread %s", p->obj_name));
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rc = WaitForSingleObject(rec->hthread, INFINITE);
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if (rc==WAIT_OBJECT_0)
568
else if (rc==WAIT_TIMEOUT)
571
return PJ_RETURN_OS_ERROR(GetLastError());
575
* pj_thread_destroy()
577
PJ_DEF(pj_status_t) pj_thread_destroy(pj_thread_t *p)
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pj_thread_t *rec = (pj_thread_t *)p;
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PJ_ASSERT_RETURN(p, PJ_EINVAL);
584
if (CloseHandle(rec->hthread) == TRUE)
587
return PJ_RETURN_OS_ERROR(GetLastError());
593
PJ_DEF(pj_status_t) pj_thread_sleep(unsigned msec)
600
#if defined(PJ_OS_HAS_CHECK_STACK) && PJ_OS_HAS_CHECK_STACK != 0
602
* pj_thread_check_stack()
603
* Implementation for PJ_CHECK_STACK()
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PJ_DEF(void) pj_thread_check_stack(const char *file, int line)
609
pj_thread_t *thread = pj_thread_this();
613
/* Calculate current usage. */
614
usage = (&stk_ptr > thread->stk_start) ? &stk_ptr - thread->stk_start :
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thread->stk_start - &stk_ptr;
617
/* Assert if stack usage is dangerously high. */
618
pj_assert("STACK OVERFLOW!! " && (usage <= thread->stk_size - 128));
620
/* Keep statistic. */
621
if (usage > thread->stk_max_usage) {
622
thread->stk_max_usage = usage;
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thread->caller_file = file;
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thread->caller_line = line;
630
* pj_thread_get_stack_max_usage()
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PJ_DEF(pj_uint32_t) pj_thread_get_stack_max_usage(pj_thread_t *thread)
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return thread->stk_max_usage;
638
* pj_thread_get_stack_info()
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PJ_DEF(pj_status_t) pj_thread_get_stack_info( pj_thread_t *thread,
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*file = thread->caller_file;
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*line = thread->caller_line;
651
#endif /* PJ_OS_HAS_CHECK_STACK */
654
///////////////////////////////////////////////////////////////////////////////
659
PJ_DEF(pj_status_t) pj_atomic_create( pj_pool_t *pool,
660
pj_atomic_value_t initial,
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pj_atomic_t **atomic_ptr)
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pj_atomic_t *atomic_var = pj_pool_alloc(pool, sizeof(pj_atomic_t));
667
atomic_var->value = initial;
668
*atomic_ptr = atomic_var;
674
* pj_atomic_destroy()
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PJ_DEF(pj_status_t) pj_atomic_destroy( pj_atomic_t *var )
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PJ_ASSERT_RETURN(var, PJ_EINVAL);
687
PJ_DEF(void) pj_atomic_set( pj_atomic_t *atomic_var, pj_atomic_value_t value)
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InterlockedExchange(&atomic_var->value, value);
697
PJ_DEF(pj_atomic_value_t) pj_atomic_get(pj_atomic_t *atomic_var)
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PJ_ASSERT_RETURN(atomic_var, 0);
702
return atomic_var->value;
706
* pj_atomic_inc_and_get()
708
PJ_DEF(pj_atomic_value_t) pj_atomic_inc_and_get(pj_atomic_t *atomic_var)
712
#if defined(PJ_WIN32_WINNT) && PJ_WIN32_WINNT >= 0x0400
713
return InterlockedIncrement(&atomic_var->value);
715
return InterlockedIncrement(&atomic_var->value);
722
PJ_DEF(void) pj_atomic_inc(pj_atomic_t *atomic_var)
724
pj_atomic_inc_and_get(atomic_var);
728
* pj_atomic_dec_and_get()
730
PJ_DEF(pj_atomic_value_t) pj_atomic_dec_and_get(pj_atomic_t *atomic_var)
734
#if defined(PJ_WIN32_WINNT) && PJ_WIN32_WINNT >= 0x0400
735
return InterlockedDecrement(&atomic_var->value);
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return InterlockedDecrement(&atomic_var->value);
744
PJ_DEF(void) pj_atomic_dec(pj_atomic_t *atomic_var)
746
pj_atomic_dec_and_get(atomic_var);
752
PJ_DEF(void) pj_atomic_add( pj_atomic_t *atomic_var,
753
pj_atomic_value_t value )
755
#if defined(PJ_WIN32_WINNT) && PJ_WIN32_WINNT >= 0x0400
756
InterlockedExchangeAdd( &atomic_var->value, value );
758
InterlockedExchangeAdd( &atomic_var->value, value );
763
* pj_atomic_add_and_get()
765
PJ_DEF(pj_atomic_value_t) pj_atomic_add_and_get( pj_atomic_t *atomic_var,
766
pj_atomic_value_t value)
768
#if defined(PJ_WIN32_WINNT) && PJ_WIN32_WINNT >= 0x0400
769
long oldValue = InterlockedExchangeAdd( &atomic_var->value, value);
770
return oldValue + value;
772
long oldValue = InterlockedExchangeAdd( &atomic_var->value, value);
773
return oldValue + value;
777
///////////////////////////////////////////////////////////////////////////////
779
* pj_thread_local_alloc()
781
PJ_DEF(pj_status_t) pj_thread_local_alloc(long *index)
783
PJ_ASSERT_RETURN(index != NULL, PJ_EINVAL);
785
//Can't check stack because this function is called in the
786
//beginning before main thread is initialized.
791
if (*index == TLS_OUT_OF_INDEXES)
792
return PJ_RETURN_OS_ERROR(GetLastError());
798
* pj_thread_local_free()
800
PJ_DEF(void) pj_thread_local_free(long index)
807
* pj_thread_local_set()
809
PJ_DEF(pj_status_t) pj_thread_local_set(long index, void *value)
813
//Can't check stack because this function is called in the
814
//beginning before main thread is initialized.
816
rc = TlsSetValue(index, value);
817
return rc!=0 ? PJ_SUCCESS : PJ_RETURN_OS_ERROR(GetLastError());
821
* pj_thread_local_get()
823
PJ_DEF(void*) pj_thread_local_get(long index)
825
//Can't check stack because this function is called
826
//by PJ_CHECK_STACK() itself!!!
828
return TlsGetValue(index);
831
///////////////////////////////////////////////////////////////////////////////
832
static pj_status_t init_mutex(pj_mutex_t *mutex, const char *name)
837
#if PJ_WIN32_WINNT >= 0x0400
838
InitializeCriticalSection(&mutex->crit);
840
mutex->hMutex = CreateMutex(NULL, FALSE, NULL);
841
if (!mutex->hMutex) {
842
return PJ_RETURN_OS_ERROR(GetLastError());
848
mutex->nesting_level = 0;
856
if (strchr(name, '%')) {
857
pj_ansi_snprintf(mutex->obj_name, PJ_MAX_OBJ_NAME, name, mutex);
859
pj_ansi_strncpy(mutex->obj_name, name, PJ_MAX_OBJ_NAME);
860
mutex->obj_name[PJ_MAX_OBJ_NAME-1] = '\0';
863
PJ_LOG(6, (mutex->obj_name, "Mutex created"));
870
PJ_DEF(pj_status_t) pj_mutex_create(pj_pool_t *pool,
873
pj_mutex_t **mutex_ptr)
879
PJ_ASSERT_RETURN(pool && mutex_ptr, PJ_EINVAL);
881
mutex = pj_pool_alloc(pool, sizeof(*mutex));
885
rc = init_mutex(mutex, name);
886
if (rc != PJ_SUCCESS)
895
* pj_mutex_create_simple()
897
PJ_DEF(pj_status_t) pj_mutex_create_simple( pj_pool_t *pool,
901
return pj_mutex_create(pool, name, PJ_MUTEX_SIMPLE, mutex);
905
* pj_mutex_create_recursive()
907
PJ_DEF(pj_status_t) pj_mutex_create_recursive( pj_pool_t *pool,
911
return pj_mutex_create(pool, name, PJ_MUTEX_RECURSE, mutex);
917
PJ_DEF(pj_status_t) pj_mutex_lock(pj_mutex_t *mutex)
922
PJ_ASSERT_RETURN(mutex, PJ_EINVAL);
924
LOG_MUTEX((mutex->obj_name, "Mutex: thread %s is waiting",
925
pj_thread_this()->obj_name));
927
#if PJ_WIN32_WINNT >= 0x0400
928
EnterCriticalSection(&mutex->crit);
931
if (WaitForSingleObject(mutex->hMutex, INFINITE)==WAIT_OBJECT_0)
934
status = PJ_STATUS_FROM_OS(GetLastError());
937
LOG_MUTEX((mutex->obj_name,
938
(status==PJ_SUCCESS ? "Mutex acquired by thread %s" : "FAILED by %s"),
939
pj_thread_this()->obj_name));
942
if (status == PJ_SUCCESS) {
943
mutex->owner = pj_thread_this();
944
++mutex->nesting_level;
954
PJ_DEF(pj_status_t) pj_mutex_unlock(pj_mutex_t *mutex)
959
PJ_ASSERT_RETURN(mutex, PJ_EINVAL);
962
pj_assert(mutex->owner == pj_thread_this());
963
if (--mutex->nesting_level == 0) {
968
LOG_MUTEX((mutex->obj_name, "Mutex released by thread %s",
969
pj_thread_this()->obj_name));
971
#if PJ_WIN32_WINNT >= 0x0400
972
LeaveCriticalSection(&mutex->crit);
975
status = ReleaseMutex(mutex->hMutex) ? PJ_SUCCESS :
976
PJ_STATUS_FROM_OS(GetLastError());
984
PJ_DEF(pj_status_t) pj_mutex_trylock(pj_mutex_t *mutex)
989
PJ_ASSERT_RETURN(mutex, PJ_EINVAL);
991
LOG_MUTEX((mutex->obj_name, "Mutex: thread %s is trying",
992
pj_thread_this()->obj_name));
994
#if PJ_WIN32_WINNT >= 0x0400
995
status=TryEnterCriticalSection(&mutex->crit) ? PJ_SUCCESS : PJ_EUNKNOWN;
997
status = WaitForSingleObject(mutex->hMutex, 0)==WAIT_OBJECT_0 ?
998
PJ_SUCCESS : PJ_ETIMEDOUT;
1000
if (status==PJ_SUCCESS) {
1001
LOG_MUTEX((mutex->obj_name, "Mutex acquired by thread %s",
1002
pj_thread_this()->obj_name));
1005
mutex->owner = pj_thread_this();
1006
++mutex->nesting_level;
1009
LOG_MUTEX((mutex->obj_name, "Mutex: thread %s's trylock() failed",
1010
pj_thread_this()->obj_name));
1017
* pj_mutex_destroy()
1019
PJ_DEF(pj_status_t) pj_mutex_destroy(pj_mutex_t *mutex)
1022
PJ_ASSERT_RETURN(mutex, PJ_EINVAL);
1024
LOG_MUTEX((mutex->obj_name, "Mutex destroyed"));
1026
#if PJ_WIN32_WINNT >= 0x0400
1027
DeleteCriticalSection(&mutex->crit);
1030
return CloseHandle(mutex->hMutex) ? PJ_SUCCESS :
1031
PJ_RETURN_OS_ERROR(GetLastError());
1036
* pj_mutex_is_locked()
1038
PJ_DEF(pj_bool_t) pj_mutex_is_locked(pj_mutex_t *mutex)
1041
return mutex->owner == pj_thread_this();
1043
PJ_UNUSED_ARG(mutex);
1044
pj_assert(!"PJ_DEBUG is not set!");
1049
///////////////////////////////////////////////////////////////////////////////
1051
* Win32 lacks Read/Write mutex, so include the emulation.
1053
#include "os_rwmutex.c"
1055
///////////////////////////////////////////////////////////////////////////////
1057
* pj_enter_critical_section()
1059
PJ_DEF(void) pj_enter_critical_section(void)
1061
pj_mutex_lock(&critical_section_mutex);
1066
* pj_leave_critical_section()
1068
PJ_DEF(void) pj_leave_critical_section(void)
1070
pj_mutex_unlock(&critical_section_mutex);
1073
///////////////////////////////////////////////////////////////////////////////
1074
#if defined(PJ_HAS_SEMAPHORE) && PJ_HAS_SEMAPHORE != 0
1079
PJ_DEF(pj_status_t) pj_sem_create( pj_pool_t *pool,
1088
PJ_ASSERT_RETURN(pool && sem_ptr, PJ_EINVAL);
1090
sem = pj_pool_alloc(pool, sizeof(*sem));
1091
sem->hSemaphore = CreateSemaphore(NULL, initial, max, NULL);
1092
if (!sem->hSemaphore)
1093
return PJ_RETURN_OS_ERROR(GetLastError());
1099
if (strchr(name, '%')) {
1100
pj_ansi_snprintf(sem->obj_name, PJ_MAX_OBJ_NAME, name, sem);
1102
pj_ansi_strncpy(sem->obj_name, name, PJ_MAX_OBJ_NAME);
1103
sem->obj_name[PJ_MAX_OBJ_NAME-1] = '\0';
1106
LOG_MUTEX((sem->obj_name, "Semaphore created"));
1112
static pj_status_t pj_sem_wait_for(pj_sem_t *sem, unsigned timeout)
1117
PJ_ASSERT_RETURN(sem, PJ_EINVAL);
1119
LOG_MUTEX((sem->obj_name, "Semaphore: thread %s is waiting",
1120
pj_thread_this()->obj_name));
1122
result = WaitForSingleObject(sem->hSemaphore, timeout);
1123
if (result == WAIT_OBJECT_0) {
1124
LOG_MUTEX((sem->obj_name, "Semaphore acquired by thread %s",
1125
pj_thread_this()->obj_name));
1127
LOG_MUTEX((sem->obj_name, "Semaphore: thread %s FAILED to acquire",
1128
pj_thread_this()->obj_name));
1131
if (result==WAIT_OBJECT_0)
1133
else if (result==WAIT_TIMEOUT)
1134
return PJ_ETIMEDOUT;
1136
return PJ_RETURN_OS_ERROR(GetLastError());
1142
PJ_DEF(pj_status_t) pj_sem_wait(pj_sem_t *sem)
1145
PJ_ASSERT_RETURN(sem, PJ_EINVAL);
1147
return pj_sem_wait_for(sem, INFINITE);
1153
PJ_DEF(pj_status_t) pj_sem_trywait(pj_sem_t *sem)
1156
PJ_ASSERT_RETURN(sem, PJ_EINVAL);
1158
return pj_sem_wait_for(sem, 0);
1164
PJ_DEF(pj_status_t) pj_sem_post(pj_sem_t *sem)
1167
PJ_ASSERT_RETURN(sem, PJ_EINVAL);
1169
LOG_MUTEX((sem->obj_name, "Semaphore released by thread %s",
1170
pj_thread_this()->obj_name));
1172
if (ReleaseSemaphore(sem->hSemaphore, 1, NULL))
1175
return PJ_RETURN_OS_ERROR(GetLastError());
1181
PJ_DEF(pj_status_t) pj_sem_destroy(pj_sem_t *sem)
1184
PJ_ASSERT_RETURN(sem, PJ_EINVAL);
1186
LOG_MUTEX((sem->obj_name, "Semaphore destroyed by thread %s",
1187
pj_thread_this()->obj_name));
1189
if (CloseHandle(sem->hSemaphore))
1192
return PJ_RETURN_OS_ERROR(GetLastError());
1195
#endif /* PJ_HAS_SEMAPHORE */
1196
///////////////////////////////////////////////////////////////////////////////
1199
#if defined(PJ_HAS_EVENT_OBJ) && PJ_HAS_EVENT_OBJ != 0
1204
PJ_DEF(pj_status_t) pj_event_create( pj_pool_t *pool,
1206
pj_bool_t manual_reset,
1208
pj_event_t **event_ptr)
1213
PJ_ASSERT_RETURN(pool && event_ptr, PJ_EINVAL);
1215
event = pj_pool_alloc(pool, sizeof(*event));
1219
event->hEvent = CreateEvent(NULL, manual_reset?TRUE:FALSE,
1220
initial?TRUE:FALSE, NULL);
1223
return PJ_RETURN_OS_ERROR(GetLastError());
1229
if (strchr(name, '%')) {
1230
pj_ansi_snprintf(event->obj_name, PJ_MAX_OBJ_NAME, name, event);
1232
pj_ansi_strncpy(event->obj_name, name, PJ_MAX_OBJ_NAME);
1233
event->obj_name[PJ_MAX_OBJ_NAME-1] = '\0';
1236
PJ_LOG(6, (event->obj_name, "Event created"));
1242
static pj_status_t pj_event_wait_for(pj_event_t *event, unsigned timeout)
1247
PJ_ASSERT_RETURN(event, PJ_EINVAL);
1249
PJ_LOG(6, (event->obj_name, "Event: thread %s is waiting",
1250
pj_thread_this()->obj_name));
1252
result = WaitForSingleObject(event->hEvent, timeout);
1253
if (result == WAIT_OBJECT_0) {
1254
PJ_LOG(6, (event->obj_name, "Event: thread %s is released",
1255
pj_thread_this()->obj_name));
1257
PJ_LOG(6, (event->obj_name, "Event: thread %s FAILED to acquire",
1258
pj_thread_this()->obj_name));
1261
if (result==WAIT_OBJECT_0)
1263
else if (result==WAIT_TIMEOUT)
1264
return PJ_ETIMEDOUT;
1266
return PJ_RETURN_OS_ERROR(GetLastError());
1272
PJ_DEF(pj_status_t) pj_event_wait(pj_event_t *event)
1274
PJ_ASSERT_RETURN(event, PJ_EINVAL);
1276
return pj_event_wait_for(event, INFINITE);
1280
* pj_event_trywait()
1282
PJ_DEF(pj_status_t) pj_event_trywait(pj_event_t *event)
1284
PJ_ASSERT_RETURN(event, PJ_EINVAL);
1286
return pj_event_wait_for(event, 0);
1292
PJ_DEF(pj_status_t) pj_event_set(pj_event_t *event)
1295
PJ_ASSERT_RETURN(event, PJ_EINVAL);
1297
PJ_LOG(6, (event->obj_name, "Setting event"));
1299
if (SetEvent(event->hEvent))
1302
return PJ_RETURN_OS_ERROR(GetLastError());
1308
PJ_DEF(pj_status_t) pj_event_pulse(pj_event_t *event)
1311
PJ_ASSERT_RETURN(event, PJ_EINVAL);
1313
PJ_LOG(6, (event->obj_name, "Pulsing event"));
1315
if (PulseEvent(event->hEvent))
1318
return PJ_RETURN_OS_ERROR(GetLastError());
1324
PJ_DEF(pj_status_t) pj_event_reset(pj_event_t *event)
1327
PJ_ASSERT_RETURN(event, PJ_EINVAL);
1329
PJ_LOG(6, (event->obj_name, "Event is reset"));
1331
if (ResetEvent(event->hEvent))
1334
return PJ_RETURN_OS_ERROR(GetLastError());
1338
* pj_event_destroy()
1340
PJ_DEF(pj_status_t) pj_event_destroy(pj_event_t *event)
1343
PJ_ASSERT_RETURN(event, PJ_EINVAL);
1345
PJ_LOG(6, (event->obj_name, "Event is destroying"));
1347
if (CloseHandle(event->hEvent))
1350
return PJ_RETURN_OS_ERROR(GetLastError());
1353
#endif /* PJ_HAS_EVENT_OBJ */
1355
///////////////////////////////////////////////////////////////////////////////
1356
#if defined(PJ_TERM_HAS_COLOR) && PJ_TERM_HAS_COLOR != 0
1361
static WORD pj_color_to_os_attr(pj_color_t color)
1365
if (color & PJ_TERM_COLOR_R)
1366
attr |= FOREGROUND_RED;
1367
if (color & PJ_TERM_COLOR_G)
1368
attr |= FOREGROUND_GREEN;
1369
if (color & PJ_TERM_COLOR_B)
1370
attr |= FOREGROUND_BLUE;
1371
if (color & PJ_TERM_COLOR_BRIGHT)
1372
attr |= FOREGROUND_INTENSITY;
1377
static pj_color_t os_attr_to_pj_color(WORD attr)
1381
if (attr & FOREGROUND_RED)
1382
color |= PJ_TERM_COLOR_R;
1383
if (attr & FOREGROUND_GREEN)
1384
color |= PJ_TERM_COLOR_G;
1385
if (attr & FOREGROUND_BLUE)
1386
color |= PJ_TERM_COLOR_B;
1387
if (attr & FOREGROUND_INTENSITY)
1388
color |= PJ_TERM_COLOR_BRIGHT;
1395
* pj_term_set_color()
1397
PJ_DEF(pj_status_t) pj_term_set_color(pj_color_t color)
1404
attr = pj_color_to_os_attr(color);
1405
rc = SetConsoleTextAttribute( GetStdHandle(STD_OUTPUT_HANDLE), attr);
1406
return rc ? PJ_SUCCESS : PJ_RETURN_OS_ERROR(GetLastError());
1410
* pj_term_get_color()
1411
* Get current terminal foreground color.
1413
PJ_DEF(pj_color_t) pj_term_get_color(void)
1415
CONSOLE_SCREEN_BUFFER_INFO info;
1419
GetConsoleScreenBufferInfo( GetStdHandle(STD_OUTPUT_HANDLE), &info);
1420
return os_attr_to_pj_color(info.wAttributes);
1423
#endif /* PJ_TERM_HAS_COLOR */