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68bf65ca25
Allow new threads to inherit scheduling policy. Use long instead of int in thread_exit, thanks to the ports maintainers for the heads up. svn path=/trunk/thread/; revision=5179
185 lines
6.6 KiB
C
185 lines
6.6 KiB
C
/* thread.h
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* - Thread Abstraction Function Headers
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*
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* Copyright (c) 1999, 2000 the icecast team <team@icecast.org>
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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 Free
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#ifndef __THREAD_H__
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#define __THREAD_H__
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#include <pthread.h>
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/* renamed from thread_t due to conflict on OS X */
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typedef struct {
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/* the local id for the thread, and it's name */
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long thread_id;
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char *name;
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/* the time the thread was created */
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time_t create_time;
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/* the file and line which created this thread */
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char *file;
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int line;
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/* is the thread running detached? */
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int detached;
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/* the system specific thread */
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pthread_t sys_thread;
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} thread_type;
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typedef struct {
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#ifdef DEBUG_MUTEXES
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/* the local id and name of the mutex */
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long mutex_id;
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char *name;
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/* the thread which is currently locking this mutex */
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long thread_id;
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/* the file and line where the mutex was locked */
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char *file;
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int line;
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#endif
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/* the system specific mutex */
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pthread_mutex_t sys_mutex;
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} mutex_t;
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typedef struct {
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#ifdef THREAD_DEBUG
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long cond_id;
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char *name;
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#endif
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pthread_mutex_t cond_mutex;
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pthread_cond_t sys_cond;
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} cond_t;
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typedef struct {
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#ifdef THREAD_DEBUG
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long rwlock_id;
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char *name;
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/* information on which thread and where in the code
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** this rwlock was write locked
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*/
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long thread_id;
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char *file;
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int line;
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#endif
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pthread_rwlock_t sys_rwlock;
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} rwlock_t;
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#define thread_create(n,x,y,z) thread_create_c(n,x,y,z,__LINE__,__FILE__)
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#define thread_mutex_create(x) thread_mutex_create_c(x,__LINE__,__FILE__)
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#define thread_mutex_lock(x) thread_mutex_lock_c(x,__LINE__,__FILE__)
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#define thread_mutex_unlock(x) thread_mutex_unlock_c(x,__LINE__,__FILE__)
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#define thread_cond_create(x) thread_cond_create_c(x,__LINE__,__FILE__)
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#define thread_cond_signal(x) thread_cond_signal_c(x,__LINE__,__FILE__)
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#define thread_cond_broadcast(x) thread_cond_broadcast_c(x,__LINE__,__FILE__)
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#define thread_cond_wait(x) thread_cond_wait_c(x,__LINE__,__FILE__)
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#define thread_cond_timedwait(x,t) thread_cond_wait_c(x,t,__LINE__,__FILE__)
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#define thread_rwlock_create(x) thread_rwlock_create_c(x,__LINE__,__FILE__)
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#define thread_rwlock_rlock(x) thread_rwlock_rlock_c(x,__LINE__,__FILE__)
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#define thread_rwlock_wlock(x) thread_rwlock_wlock_c(x,__LINE__,__FILE__)
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#define thread_rwlock_unlock(x) thread_rwlock_unlock_c(x,__LINE__,__FILE__)
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#define thread_exit(x) thread_exit_c(x,__LINE__,__FILE__)
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#define MUTEX_STATE_NOTLOCKED -1
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#define MUTEX_STATE_NEVERLOCKED -2
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#define MUTEX_STATE_UNINIT -3
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#define THREAD_DETACHED 1
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#define THREAD_ATTACHED 0
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#ifdef _mangle
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# define thread_initialize _mangle(thread_initialize)
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# define thread_initialize_with_log_id _mangle(thread_initialize_with_log_id)
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# define thread_shutdown _mangle(thread_shutdown)
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# define thread_create_c _mangle(thread_create_c)
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# define thread_mutex_create_c _mangle(thread_mutex_create)
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# define thread_mutex_lock_c _mangle(thread_mutex_lock_c)
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# define thread_mutex_unlock_c _mangle(thread_mutex_unlock_c)
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# define thread_mutex_destroy _mangle(thread_mutex_destroy)
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# define thread_cond_create_c _mangle(thread_cond_create_c)
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# define thread_cond_signal_c _mangle(thread_cond_signal_c)
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# define thread_cond_broadcast_c _mangle(thread_cond_broadcast_c)
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# define thread_cond_wait_c _mangle(thread_cond_wait_c)
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# define thread_cond_timedwait_c _mangle(thread_cond_timedwait_c)
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# define thread_cond_destroy _mangle(thread_cond_destroy)
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# define thread_rwlock_create_c _mangle(thread_rwlock_create_c)
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# define thread_rwlock_rlock_c _mangle(thread_rwlock_rlock_c)
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# define thread_rwlock_wlock_c _mangle(thread_rwlock_wlock_c)
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# define thread_rwlock_unlock_c _mangle(thread_rwlock_unlock_c)
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# define thread_rwlock_destroy _mangle(thread_rwlock_destroy)
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# define thread_exit_c _mangle(thread_exit_c)
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# define thread_sleep _mangle(thread_sleep)
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# define thread_library_lock _mangle(thread_library_lock)
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# define thread_library_unlock _mangle(thread_library_unlock)
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# define thread_self _mangle(thread_self)
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# define thread_rename _mangle(thread_rename)
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# define thread_join _mangle(thread_join)
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#endif
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/* init/shutdown of the library */
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void thread_initialize(void);
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void thread_initialize_with_log_id(int log_id);
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void thread_shutdown(void);
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/* creation, destruction, locking, unlocking, signalling and waiting */
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thread_type *thread_create_c(char *name, void *(*start_routine)(void *),
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void *arg, int detached, int line, char *file);
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void thread_mutex_create_c(mutex_t *mutex, int line, char *file);
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void thread_mutex_lock_c(mutex_t *mutex, int line, char *file);
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void thread_mutex_unlock_c(mutex_t *mutex, int line, char *file);
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void thread_mutex_destroy(mutex_t *mutex);
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void thread_cond_create_c(cond_t *cond, int line, char *file);
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void thread_cond_signal_c(cond_t *cond, int line, char *file);
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void thread_cond_broadcast_c(cond_t *cond, int line, char *file);
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void thread_cond_wait_c(cond_t *cond, int line, char *file);
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void thread_cond_timedwait_c(cond_t *cond, int millis, int line, char *file);
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void thread_cond_destroy(cond_t *cond);
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void thread_rwlock_create_c(rwlock_t *rwlock, int line, char *file);
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void thread_rwlock_rlock_c(rwlock_t *rwlock, int line, char *file);
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void thread_rwlock_wlock_c(rwlock_t *rwlock, int line, char *file);
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void thread_rwlock_unlock_c(rwlock_t *rwlock, int line, char *file);
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void thread_rwlock_destroy(rwlock_t *rwlock);
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void thread_exit_c(long val, int line, char *file);
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/* sleeping */
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void thread_sleep(unsigned long len);
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/* for using library functions which aren't threadsafe */
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void thread_library_lock(void);
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void thread_library_unlock(void);
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#define PROTECT_CODE(code) { thread_library_lock(); code; thread_library_unlock(); }
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/* thread information functions */
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thread_type *thread_self(void);
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/* renames current thread */
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void thread_rename(const char *name);
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/* waits until thread_exit is called for another thread */
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void thread_join(thread_type *thread);
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#endif /* __THREAD_H__ */
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