109 lines
3.2 KiB
C
109 lines
3.2 KiB
C
/*****************************************************************************
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* osdep.c: platform-specific code
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*****************************************************************************
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* Copyright (C) 2003-2025 x264 project
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*
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* Authors: Steven Walters <kemuri9@gmail.com>
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* Laurent Aimar <fenrir@via.ecp.fr>
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* Henrik Gramner <henrik@gramner.com>
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*
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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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*
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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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*
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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., 51 Franklin Street, Fifth Floor, Boston, MA 02111, USA.
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*
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* This program is also available under a commercial proprietary license.
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* For more information, contact us at licensing@x264.com.
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*****************************************************************************/
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#include "osdep.h"
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#if SYS_WINDOWS
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#include <sys/types.h>
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#include <sys/timeb.h>
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#else
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#include <sys/time.h>
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#endif
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#include <time.h>
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#if PTW32_STATIC_LIB
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/* this is a global in pthread-win32 to indicate if it has been initialized or not */
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extern int ptw32_processInitialized;
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#endif
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int64_t x264_mdate( void )
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{
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#if SYS_WINDOWS
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struct timeb tb;
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ftime( &tb );
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return ((int64_t)tb.time * 1000 + (int64_t)tb.millitm) * 1000;
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#elif HAVE_CLOCK_GETTIME
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struct timespec ts;
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clock_gettime( CLOCK_MONOTONIC, &ts );
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return (int64_t)ts.tv_sec * 1000000 + (int64_t)ts.tv_nsec / 1000;
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#else
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struct timeval tv_date;
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gettimeofday( &tv_date, NULL );
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return (int64_t)tv_date.tv_sec * 1000000 + (int64_t)tv_date.tv_usec;
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#endif
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}
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#if HAVE_WIN32THREAD || PTW32_STATIC_LIB
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/* state of the threading library being initialized */
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static volatile LONG threading_is_init = 0;
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static void threading_destroy( void )
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{
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#if PTW32_STATIC_LIB
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pthread_win32_thread_detach_np();
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pthread_win32_process_detach_np();
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#else
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x264_win32_threading_destroy();
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#endif
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}
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static int threading_init( void )
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{
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#if PTW32_STATIC_LIB
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/* if static pthread-win32 is already initialized, then do nothing */
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if( ptw32_processInitialized )
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return 0;
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if( !pthread_win32_process_attach_np() )
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return -1;
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#else
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if( x264_win32_threading_init() )
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return -1;
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#endif
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/* register cleanup to run at process termination */
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atexit( threading_destroy );
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return 0;
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}
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int x264_threading_init( void )
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{
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LONG state;
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while( (state = InterlockedCompareExchange( &threading_is_init, -1, 0 )) != 0 )
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{
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/* if already init, then do nothing */
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if( state > 0 )
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return 0;
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}
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if( threading_init() < 0 )
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{
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InterlockedExchange( &threading_is_init, 0 );
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return -1;
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}
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InterlockedExchange( &threading_is_init, 1 );
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return 0;
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}
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#endif
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