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72dd13b5bd
Original commit message from CVS: merged schedulers - new file cothreads_compat.h to provide linking to desired cothreads package - changes in basic and fast scheduler to use cothreads_compat.h - updated Makefile to build the basic and the fast scheduler from both packages - removed gststandardscheduler.c - it is not needed anymore Available schedulers are now 'basic', 'standard', 'fastbasic' and 'faststandard' where the basic ones are built with old cothreads and the standard ones with the new cothreads.
133 lines
4.2 KiB
C
133 lines
4.2 KiB
C
/* GStreamer
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* Copyright (C) 1999,2000 Erik Walthinsen <omega@cse.ogi.edu>
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* 2000 Wim Taymans <wtay@chello.be>
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*
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* gstscheduler.c: Default scheduling code for most cases
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library 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 GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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/* use the old cothreads implementation in gst/cothreads.[ch] */
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#if defined(_COTHREADS_BASIC)
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#include "../cothreads.h"
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/* the name of this cothreads type */
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#define COTHREADS_NAME "basic"
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#define COTHREADS_NAME_CAPITAL "Basic"
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/* unify the structs
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*
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* "cothread" and "cothread_context" need to vbe defined
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*/
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typedef cothread_state cothread;
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/* define functions
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* the macros are prepended with "do_"
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*/
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#define do_cothreads_init(x) /* NOP */
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#define do_cothread_switch(to) cothread_switch(to)
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#define do_cothread_create(new_thread, context, func, argc, argv) \
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G_STMT_START{ \
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new_thread = cothread_create (context); \
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if (new_thread) { \
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cothread_setfunc (new_thread, (func), (argc), (argv)); \
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}\
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}G_STMT_END
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#define do_cothread_reset(cothread, context, func, argc, argv) \
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cothread_setfunc ((cothread), (func), (argc), (argv))
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#define do_cothread_destroy(cothread) cothread_free(cothread)
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#define do_cothread_context_init() (cothread_context_init ())
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#define do_cothread_context_destroy(context) cothread_context_free (context)
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#define do_cothread_lock(cothread) cothread_lock(cothread)
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#define do_cothread_unlock(cothread) cothread_unlock(cothread)
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#define do_cothread_get_current() (cothread_current())
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#define do_cothread_get_main(context) (cothread_current_main())
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/* use the new cothreads implementation in libs/ext/cothreads */
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#elif defined(_COTHREADS_STANDARD)
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#include <cothreads/cothreads.h>
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#include <errno.h>
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/* the name of this cothreads */
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#define COTHREADS_NAME "standard"
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#define COTHREADS_NAME_CAPITAL "Standard"
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/* unify the structs
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*
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* "cothread" and "cothread_context" need to vbe defined
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*/
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typedef cothread cothread_context;
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/* define functions
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* the macros are prepended with "do_"
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*/
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#define do_cothreads_init(x) G_STMT_START{ \
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if (!cothreads_initialized()) \
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cothreads_init(x); \
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}G_STMT_END
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#define do_cothread_switch(to) G_STMT_START{ \
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cothread *from = cothread_self (); \
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if (from == (to)) { \
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GST_DEBUG (GST_CAT_COTHREAD_SWITCH, "trying to switch to the same cothread (%p), not allowed", \
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(to)); \
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g_warning ("trying to switch to the same cothread, not allowed"); \
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} else { \
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GST_INFO (GST_CAT_COTHREAD_SWITCH, "switching from cothread %p to cothread %p", \
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from, (to)); \
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cothread_switch (from, (to)); \
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GST_INFO (GST_CAT_COTHREAD_SWITCH, "we're in cothread %p now", from); \
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} \
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}G_STMT_END
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#define do_cothread_create(new_thread, context, func, argc, argv) \
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G_STMT_START{ \
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new_thread = cothread_create ((func), 0, (void**) (argv), (context)); \
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}G_STMT_END
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#define do_cothread_reset(cothread, context, func, argc, argv) \
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cothread_reset ((cothread), (func), (argc), (void **) (argv), (context))
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#define do_cothread_destroy(cothread) cothread_destroy(cothread)
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#define do_cothread_context_init() (cothread_create (NULL, 0, NULL, NULL))
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#define do_cothread_context_destroy(context) cothread_destroy (context)
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#define do_cothread_lock(cothread) /* FIXME */
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#define do_cothread_unlock(cothread) /* FIXME */
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#define do_cothread_get_current() (cothread_self())
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#define do_cothread_get_main(context) (context)
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/* bail out with an error if no cothreads package is defined */
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#else
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#error "No cothreads package defined"
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#endif
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