gstreamer/gst/schedulers/cothreads_compat.h
Benjamin Otte 72dd13b5bd merged schedulers
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.
2002-05-06 19:23:37 +00:00

133 lines
4.2 KiB
C

/* GStreamer
* Copyright (C) 1999,2000 Erik Walthinsen <omega@cse.ogi.edu>
* 2000 Wim Taymans <wtay@chello.be>
*
* gstscheduler.c: Default scheduling code for most cases
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
/* use the old cothreads implementation in gst/cothreads.[ch] */
#if defined(_COTHREADS_BASIC)
#include "../cothreads.h"
/* the name of this cothreads type */
#define COTHREADS_NAME "basic"
#define COTHREADS_NAME_CAPITAL "Basic"
/* unify the structs
*
* "cothread" and "cothread_context" need to vbe defined
*/
typedef cothread_state cothread;
/* define functions
* the macros are prepended with "do_"
*/
#define do_cothreads_init(x) /* NOP */
#define do_cothread_switch(to) cothread_switch(to)
#define do_cothread_create(new_thread, context, func, argc, argv) \
G_STMT_START{ \
new_thread = cothread_create (context); \
if (new_thread) { \
cothread_setfunc (new_thread, (func), (argc), (argv)); \
}\
}G_STMT_END
#define do_cothread_reset(cothread, context, func, argc, argv) \
cothread_setfunc ((cothread), (func), (argc), (argv))
#define do_cothread_destroy(cothread) cothread_free(cothread)
#define do_cothread_context_init() (cothread_context_init ())
#define do_cothread_context_destroy(context) cothread_context_free (context)
#define do_cothread_lock(cothread) cothread_lock(cothread)
#define do_cothread_unlock(cothread) cothread_unlock(cothread)
#define do_cothread_get_current() (cothread_current())
#define do_cothread_get_main(context) (cothread_current_main())
/* use the new cothreads implementation in libs/ext/cothreads */
#elif defined(_COTHREADS_STANDARD)
#include <cothreads/cothreads.h>
#include <errno.h>
/* the name of this cothreads */
#define COTHREADS_NAME "standard"
#define COTHREADS_NAME_CAPITAL "Standard"
/* unify the structs
*
* "cothread" and "cothread_context" need to vbe defined
*/
typedef cothread cothread_context;
/* define functions
* the macros are prepended with "do_"
*/
#define do_cothreads_init(x) G_STMT_START{ \
if (!cothreads_initialized()) \
cothreads_init(x); \
}G_STMT_END
#define do_cothread_switch(to) G_STMT_START{ \
cothread *from = cothread_self (); \
if (from == (to)) { \
GST_DEBUG (GST_CAT_COTHREAD_SWITCH, "trying to switch to the same cothread (%p), not allowed", \
(to)); \
g_warning ("trying to switch to the same cothread, not allowed"); \
} else { \
GST_INFO (GST_CAT_COTHREAD_SWITCH, "switching from cothread %p to cothread %p", \
from, (to)); \
cothread_switch (from, (to)); \
GST_INFO (GST_CAT_COTHREAD_SWITCH, "we're in cothread %p now", from); \
} \
}G_STMT_END
#define do_cothread_create(new_thread, context, func, argc, argv) \
G_STMT_START{ \
new_thread = cothread_create ((func), 0, (void**) (argv), (context)); \
}G_STMT_END
#define do_cothread_reset(cothread, context, func, argc, argv) \
cothread_reset ((cothread), (func), (argc), (void **) (argv), (context))
#define do_cothread_destroy(cothread) cothread_destroy(cothread)
#define do_cothread_context_init() (cothread_create (NULL, 0, NULL, NULL))
#define do_cothread_context_destroy(context) cothread_destroy (context)
#define do_cothread_lock(cothread) /* FIXME */
#define do_cothread_unlock(cothread) /* FIXME */
#define do_cothread_get_current() (cothread_self())
#define do_cothread_get_main(context) (context)
/* bail out with an error if no cothreads package is defined */
#else
#error "No cothreads package defined"
#endif