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https://code.videolan.org/videolan/vlc
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* src/misc/threads.c: made vlc_set_thread_priority usable on non-Darwin
OSes, and added an rt-offset configuration variable to tune the priority of VLC against other programs without recompiling everything.
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12
src/libvlc.h
12
src/libvlc.h
@ -2,7 +2,7 @@
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* libvlc.h: main libvlc header
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*****************************************************************************
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* Copyright (C) 1998-2002 VideoLAN
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* $Id: libvlc.h,v 1.133 2004/02/11 19:17:13 fenrir Exp $
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* $Id: libvlc.h,v 1.134 2004/02/20 17:20:01 massiot Exp $
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*
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* Authors: Vincent Seguin <seguin@via.ecp.fr>
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* Samuel Hocevar <sam@zoy.org>
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@ -523,6 +523,12 @@ static char *ppsz_align_descriptions[] = { N_("Center"),
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"slow. You should only activate this if you know what you're " \
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"doing.")
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#define RT_OFFSET_TEXT N_("Adjust VLC priority")
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#define RT_OFFSET_LONGTEXT N_( \
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"This options adds an offset (positive or negative) to VLC default " \
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"priorities. You can use it to tune VLC priority against other " \
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"programs, or against other VLC instances.")
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#define MINIMIZE_THREADS_TXT N_("Minimize number of threads")
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#define MINIMIZE_THREADS_LONGTXT N_( \
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"This option minimizes the number of threads needed to run VLC")
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@ -850,6 +856,10 @@ vlc_module_begin();
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add_bool( "rt-priority", 0, NULL, RT_PRIORITY_TEXT, RT_PRIORITY_LONGTEXT, VLC_TRUE );
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#endif
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#if !defined(SYS_BEOS) && defined(PTHREAD_COND_T_IN_PTHREAD_H)
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add_integer( "rt-offset", 0, NULL, RT_OFFSET_TEXT, RT_OFFSET_LONGTEXT, VLC_TRUE );
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#endif
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#if defined(WIN32)
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add_bool( "one-instance", 0, NULL, ONEINSTANCE_TEXT, ONEINSTANCE_LONGTEXT, VLC_TRUE );
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add_bool( "high-priority", 1, NULL, HPRIORITY_TEXT, HPRIORITY_LONGTEXT, VLC_TRUE );
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@ -2,7 +2,7 @@
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* threads.c : threads implementation for the VideoLAN client
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*****************************************************************************
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* Copyright (C) 1999-2004 VideoLAN
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* $Id: threads.c,v 1.45 2004/01/06 12:02:06 zorglub Exp $
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* $Id: threads.c,v 1.46 2004/02/20 17:20:01 massiot Exp $
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*
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* Authors: Jean-Marc Dressler <polux@via.ecp.fr>
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* Samuel Hocevar <sam@zoy.org>
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@ -568,7 +568,9 @@ int __vlc_thread_create( vlc_object_t *p_this, char * psz_file, int i_line,
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{
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int i_error, i_policy;
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struct sched_param param;
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memset( ¶m, 0, sizeof(struct sched_param) );
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i_priority += config_GetInt( p_this, "rt-offset" );
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if ( i_priority < 0 )
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{
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param.sched_priority = (-1) * i_priority;
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@ -645,13 +647,17 @@ int __vlc_thread_set_priority( vlc_object_t *p_this, char * psz_file,
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}
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#elif defined( PTHREAD_COND_T_IN_PTHREAD_H )
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#ifdef SYS_DARWIN
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if ( i_priority )
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if ( i_priority
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#ifndef SYS_DARWIN
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&& config_GetInt( p_this, "rt-priority" )
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#endif
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)
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{
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int i_error, i_policy;
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struct sched_param param;
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memset( ¶m, 0, sizeof(struct sched_param) );
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i_priority += config_GetInt( p_this, "rt-offset" );
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if ( i_priority < 0 )
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{
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param.sched_priority = (-1) * i_priority;
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@ -662,7 +668,7 @@ int __vlc_thread_set_priority( vlc_object_t *p_this, char * psz_file,
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param.sched_priority = i_priority;
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i_policy = SCHED_RR;
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}
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if ( (i_error = pthread_setschedparam( pthread_self(),
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if ( (i_error = pthread_setschedparam( p_this->thread_id,
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i_policy, ¶m )) )
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{
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msg_Warn( p_this, "couldn't set thread priority (%s:%d): %s",
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@ -670,8 +676,6 @@ int __vlc_thread_set_priority( vlc_object_t *p_this, char * psz_file,
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i_priority = 0;
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}
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}
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#endif
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#endif
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return 0;
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