-/* Copyright (C) 1995, 1996 Free Software Foundation, Inc.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2, or (at your option)
- * any later version.
- *
- * This program 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 General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this software; see the file COPYING. If not, write to
- * the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
- * Boston, MA 02111-1307 USA
- *
- * As a special exception, the Free Software Foundation gives permission
- * for additional uses of the text contained in its release of GUILE.
- *
- * The exception is that, if you link the GUILE library with other files
- * to produce an executable, this does not by itself cause the
- * resulting executable to be covered by the GNU General Public License.
- * Your use of that executable is in no way restricted on account of
- * linking the GUILE library code into it.
- *
- * This exception does not however invalidate any other reasons why
- * the executable file might be covered by the GNU General Public License.
- *
- * This exception applies only to the code released by the
- * Free Software Foundation under the name GUILE. If you copy
- * code from other Free Software Foundation releases into a copy of
- * GUILE, as the General Public License permits, the exception does
- * not apply to the code that you add in this way. To avoid misleading
- * anyone as to the status of such modified files, you must delete
- * this exception notice from them.
- *
- * If you write modifications of your own for GUILE, it is your choice
- * whether to permit this exception to apply to your modifications.
- * If you do not wish that, delete this exception notice. */
-
-/* Software engineering face-lift by Greg J. Badros, 11-Dec-1999,
- gjb@cs.washington.edu, http://www.cs.washington.edu/homes/gjb */
-\f
-
-#ifndef SCM_FSU_PTHREADS_H
-#define SCM_FSU_PTHREADS_H
-
-#define PTHREAD_KERNEL
-#include <pthread.h>
-
-/* Identify where the stack pointer can be found in a jmpbuf.
- */
-
-#if defined(__sparc_setjmp_h)
-# define THREAD_SP machdep_data.machdep_state[2]
-#endif
-
-#if defined(linux)
-# define THREAD_SP machdep_data.machdep_state[0].__sp
-#endif
-
-#if defined(sgi)
-# define THREAD_SP machdep_data.machdep_state[JB_SP]
-#endif
-
-/* ...define THREAD_SP for your architecture here...
- */
-
-#if !defined(THREAD_SP)
---> where is your stack pointer?
-#endif
-
-\f
-
-#define PTHREAD_MAX_PRIORITY 64
-
-\f
-
-/* Boost the priority of this thread so that it is the only
- one running. PTHREAD_MAX_PRIORITY is reserved for this
- purpose */
-
-#define SCM_THREAD_CRITICAL_SECTION_START \
- struct sched_param param; \
- int previous_prio; \
- int policy; \
- pthread_getschedparam(pthread_self(), &policy, ¶m); \
- previous_prio = param.prio; \
- param.prio = PTHREAD_MAX_PRIORITY; \
- pthread_setschedparam(pthread_self(), policy, ¶m)
-
-#define SCM_THREAD_CRITICAL_SECTION_END \
- param.prio = previous_prio; \
- pthread_setschedparam(pthread_self(), policy, ¶m)
-
-#define SCM_THREAD_INITIALIZE_STORAGE \
- scm_threads_init_mit_pthreads ()
-
-\f
-
-#define SCM_NO_CRITICAL_SECTION_OWNER 0
-
-#define SCM_DEFER_INTS \
-do { \
- SCM_IASSERT(scm_critical_section_owner != pthread_self()); \
- pthread_mutex_lock(&scm_critical_section_mutex); \
- scm_critical_section_owner = pthread_self(); \
- scm_ints_disabled = 1; \
-} while (0)
-
-#define SCM_ALLOW_INTS \
-do { \
- SCM_IASSERT(scm_critical_section_owner == pthread_self()); \
- scm_ints_disabled = 0; \
- scm_critical_section_owner = SCM_NO_CRITICAL_SECTION_OWNER; \
- pthread_mutex_unlock(&scm_critical_section_mutex); \
- SCM_CHECK_INTS; \
-} while (0)
-
-#define SCM_REDEFER_INTS \
-do { \
- if ((scm_critical_section_owner != pthread_self()) || \
- (scm_critical_section_owner == SCM_NO_CRITICAL_SECTION_OWNER)) \
- { \
- pthread_mutex_lock(&scm_critical_section_mutex); \
- scm_critical_section_owner = pthread_self(); \
- } \
- ++scm_ints_disabled; \
-} while (0)
-
-#define SCM_REALLOW_INTS \
-do { \
- SCM_IASSERT(scm_critical_section_owner == pthread_self()); \
- --scm_ints_disabled; \
- if (!scm_ints_disabled) \
- { \
- scm_critical_section_owner = SCM_NO_CRITICAL_SECTION_OWNER; \
- pthread_mutex_unlock(&scm_critical_section_mutex); \
- SCM_CHECK_INTS; \
- } \
-} while (0)
-
-*fixme*
-#define scm_root ((scm_root_state *) pthread_self()->prots)
-#define scm_set_root(new_root) (pthread_self()->prots = (new_root))
-
-\f
-
-void scm_threads_init_mit_pthreads ();
-
-typedef struct QUEUE {
- struct QUEUE *flink, *blink;
-} queue;
-
-extern pthread_mutex_t scm_critical_section_mutex;
-extern pthread_t scm_critical_section_owner;
-
-/* Key to thread specific data */
-extern pthread_key_t info_key;
-
-struct scm_pthread_create_info_type
-{
- SCM thunk;
- SCM error;
- SCM *prots;
-} scm_pthread_create_info;
-
-#endif
HCoop / bpt / guile.git / blobdiff