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icecast-common/thread/thread.h

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/* thread.h
* - Thread Abstraction Function Headers
*
* Copyright (c) 1999, 2000 the icecast team
*
* 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
* of the License, 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 program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*
*/
#ifndef __THREAD_H__
#define __THREAD_H__
#include <pthread.h>
typedef struct thread_tag {
/* the local id for the thread, and it's name */
long thread_id;
char *name;
/* the time the thread was created */
time_t create_time;
/* the file and line which created this thread */
char *file;
int line;
/* the system specific thread */
pthread_t sys_thread;
} thread_t;
typedef struct mutex_tag {
/* the local id and name of the mutex */
long mutex_id;
char *name;
/* the thread which is currently locking this mutex */
long thread_id;
/* the file and line where the mutex was locked */
char *file;
int line;
/* the system specific mutex */
pthread_mutex_t sys_mutex;
} mutex_t;
typedef struct cond_tag {
long cond_id;
char *name;
pthread_mutex_t cond_mutex;
pthread_cond_t sys_cond;
} cond_t;
typedef struct rwlock_tag {
long rwlock_id;
char *name;
/* information on which thread and where in the code
** this rwlock was write locked
*/
long thread_id;
char *file;
int line;
pthread_rwlock_t sys_rwlock;
} rwlock_t;
#define thread_create(n,x,y,z) thread_create_c(n,x,y,z,__LINE__,__FILE__)
#define thread_mutex_create(x) thread_mutex_create_c(x,__LINE__,__FILE__)
#define thread_mutex_lock(x) thread_mutex_lock_c(x,__LINE__,__FILE__)
#define thread_mutex_unlock(x) thread_mutex_unlock_c(x,__LINE__,__FILE__)
#define thread_cond_create(x) thread_cond_create_c(x,__LINE__,__FILE__)
#define thread_cond_signal(x) thread_cond_signal_c(x,__LINE__,__FILE__)
#define thread_cond_broadcast(x) thread_cond_broadcast_c(x,__LINE__,__FILE__)
#define thread_cond_wait(x) thread_cond_wait_c(x,__LINE__,__FILE__)
#define thread_rwlock_create(x) thread_rwlock_create_c(x,__LINE__,__FILE__)
#define thread_rwlock_rlock(x) thread_rwlock_rlock_c(x,__LINE__,__FILE__)
#define thread_rwlock_wlock(x) thread_rwlock_wlock_c(x,__LINE__,__FILE__)
#define thread_rwlock_unlock(x) thread_rwlock_unlock_c(x,__LINE__,__FILE__)
#define thread_exit(x) thread_exit_c(x,__LINE__,__FILE__)
#define MUTEX_STATE_NOTLOCKED -1
#define MUTEX_STATE_NEVERLOCKED -2
#define MUTEX_STATE_UNINIT -3
#define THREAD_DETACHED 1
#define THREAD_ATTACHED 0
/* init/shutdown of the library */
void thread_initialize(void);
void thread_initialize_with_log_id(int log_id);
void thread_shutdown(void);
/* creation, destruction, locking, unlocking, signalling and waiting */
long thread_create_c(char *name, void *(*start_routine)(void *), void *arg, int detached, int line, char *file);
void thread_mutex_create_c(mutex_t *mutex, int line, char *file);
void thread_mutex_lock_c(mutex_t *mutex, int line, char *file);
void thread_mutex_unlock_c(mutex_t *mutex, int line, char *file);
void thread_mutex_destroy(mutex_t *mutex);
void thread_cond_create_c(cond_t *cond, int line, char *file);
void thread_cond_signal_c(cond_t *cond, int line, char *file);
void thread_cond_broadcast_c(cond_t *cond, int line, char *file);
void thread_cond_wait_c(cond_t *cond, int line, char *file);
void thread_cond_destroy(cond_t *cond);
void thread_rwlock_create_c(rwlock_t *rwlock, int line, char *file);
void thread_rwlock_rlock_c(rwlock_t *rwlock, int line, char *file);
void thread_rwlock_wlock_c(rwlock_t *rwlock, int line, char *file);
void thread_rwlock_unlock_c(rwlock_t *rwlock, int line, char *file);
void thread_rwlock_destroy(rwlock_t *rwlock);
void thread_exit_c(int val, int line, char *file);
/* sleeping */
void thread_sleep(unsigned long len);
/* for using library functions which aren't threadsafe */
void thread_library_lock(void);
void thread_library_unlock(void);
#define PROTECT_CODE(code) { thread_library_lock(); code; thread_library_unlock(); }
/* thread information functions */
thread_t *thread_self(void);
/* renames current thread */
void thread_rename(const char *name);
/* waits until thread_exit is called for another thread */
void thread_join(long thread);
#endif /* __THREAD_H__ */