8ba58951e9
This is reported by m...@hesotech.de (see issue 312): "The decoder causes an access violation when you decode the first frame, then make a pause of about 60 seconds and then decode further frames. But only if vpx_codec_dec_cfg_t.threads> 1. This is caused by a timeout of WaitForSingleObject. When I change the definition of VPXINFINITE to INFINITE(0xFFFFFFFF), the problem is solved." Reproduced the crash and verified the changes on Windows platform. This brings the behavior inline with the other platforms using sem_wait(). Change-Id: I27b32f90bce05846ef2684b50f7a88f292299da1
95 lines
3.2 KiB
C
95 lines
3.2 KiB
C
/*
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* Copyright (c) 2010 The WebM project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#ifndef _PTHREAD_EMULATION
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#define _PTHREAD_EMULATION
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#if CONFIG_OS_SUPPORT && CONFIG_MULTITHREAD
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/* Thread management macros */
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#ifdef _WIN32
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/* Win32 */
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#define _WIN32_WINNT 0x500 /* WINBASE.H - Enable signal_object_and_wait */
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#include <process.h>
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#include <windows.h>
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#define THREAD_FUNCTION DWORD WINAPI
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#define THREAD_FUNCTION_RETURN DWORD
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#define THREAD_SPECIFIC_INDEX DWORD
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#define pthread_t HANDLE
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#define pthread_attr_t DWORD
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#define pthread_create(thhandle,attr,thfunc,tharg) (int)((*thhandle=(HANDLE)_beginthreadex(NULL,0,(unsigned int (__stdcall *)(void *))thfunc,tharg,0,NULL))==NULL)
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#define pthread_join(thread, result) ((WaitForSingleObject((thread),INFINITE)!=WAIT_OBJECT_0) || !CloseHandle(thread))
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#define pthread_detach(thread) if(thread!=NULL)CloseHandle(thread)
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#define thread_sleep(nms) Sleep(nms)
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#define pthread_cancel(thread) terminate_thread(thread,0)
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#define ts_key_create(ts_key, destructor) {ts_key = TlsAlloc();};
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#define pthread_getspecific(ts_key) TlsGetValue(ts_key)
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#define pthread_setspecific(ts_key, value) TlsSetValue(ts_key, (void *)value)
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#define pthread_self() GetCurrentThreadId()
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#else
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#ifdef __APPLE__
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#include <mach/mach_init.h>
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#include <mach/semaphore.h>
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#include <mach/task.h>
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#include <time.h>
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#include <unistd.h>
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#else
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#include <semaphore.h>
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#endif
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#include <pthread.h>
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/* pthreads */
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/* Nearly everything is already defined */
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#define THREAD_FUNCTION void *
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#define THREAD_FUNCTION_RETURN void *
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#define THREAD_SPECIFIC_INDEX pthread_key_t
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#define ts_key_create(ts_key, destructor) pthread_key_create (&(ts_key), destructor);
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#endif
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/* Syncrhronization macros: Win32 and Pthreads */
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#ifdef _WIN32
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#define sem_t HANDLE
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#define pause(voidpara) __asm PAUSE
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#define sem_init(sem, sem_attr1, sem_init_value) (int)((*sem = CreateEvent(NULL,FALSE,FALSE,NULL))==NULL)
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#define sem_wait(sem) (int)(WAIT_OBJECT_0 != WaitForSingleObject(*sem,INFINITE))
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#define sem_post(sem) SetEvent(*sem)
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#define sem_destroy(sem) if(*sem)((int)(CloseHandle(*sem))==TRUE)
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#define thread_sleep(nms) Sleep(nms)
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#else
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#ifdef __APPLE__
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#define sem_t semaphore_t
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#define sem_init(X,Y,Z) semaphore_create(mach_task_self(), X, SYNC_POLICY_FIFO, Z)
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#define sem_wait(sem) (semaphore_wait(*sem) )
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#define sem_post(sem) semaphore_signal(*sem)
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#define sem_destroy(sem) semaphore_destroy(mach_task_self(),*sem)
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#define thread_sleep(nms) /* { struct timespec ts;ts.tv_sec=0; ts.tv_nsec = 1000*nms;nanosleep(&ts, NULL);} */
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#else
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#include <unistd.h>
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#include <sched.h>
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#define thread_sleep(nms) sched_yield();/* {struct timespec ts;ts.tv_sec=0; ts.tv_nsec = 1000*nms;nanosleep(&ts, NULL);} */
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#endif
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/* Not Windows. Assume pthreads */
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#endif
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#if ARCH_X86 || ARCH_X86_64
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#include "vpx_ports/x86.h"
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#else
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#define x86_pause_hint()
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#endif
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#endif /* CONFIG_OS_SUPPORT && CONFIG_MULTITHREAD */
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#endif
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