275 lines
8.6 KiB
C
275 lines
8.6 KiB
C
/*
|
|
* File : pthread.h
|
|
* This file is part of RT-Thread RTOS
|
|
* COPYRIGHT (C) 2006 - 2010, RT-Thread Development Team
|
|
*
|
|
* The license and distribution terms for this file may be
|
|
* found in the file LICENSE in this distribution or at
|
|
* http://www.rt-thread.org/license/LICENSE
|
|
*
|
|
* Change Logs:
|
|
* Date Author Notes
|
|
* 2010-10-26 Bernard the first version
|
|
*/
|
|
#ifndef __PTHREAD_H__
|
|
#define __PTHREAD_H__
|
|
|
|
#include <rtthread.h>
|
|
#include <posix_types.h>
|
|
|
|
#define PTHREAD_KEY_MAX 8
|
|
|
|
#define PTHREAD_COND_INITIALIZER {-1, 0}
|
|
#define PTHREAD_RWLOCK_INITIALIZER {-1, 0}
|
|
#define PTHREAD_MUTEX_INITIALIZER {-1, 0}
|
|
|
|
#define PTHREAD_CREATE_JOINABLE 0x00
|
|
#define PTHREAD_CREATE_DETACHED 0x01
|
|
|
|
#define PTHREAD_EXPLICIT_SCHED 0
|
|
#define PTHREAD_INHERIT_SCHED 1
|
|
|
|
typedef rt_thread_t pthread_t;
|
|
typedef long pthread_condattr_t;
|
|
typedef long pthread_rwlockattr_t;
|
|
typedef long pthread_mutexattr_t;
|
|
typedef long pthread_barrierattr_t;
|
|
|
|
typedef int pthread_key_t;
|
|
typedef int pthread_once_t;
|
|
|
|
enum {
|
|
PTHREAD_CANCEL_ASYNCHRONOUS = 0,
|
|
PTHREAD_CANCEL_ENABLE,
|
|
PTHREAD_CANCEL_DEFERRED,
|
|
PTHREAD_CANCEL_DISABLE,
|
|
PTHREAD_CANCELED
|
|
};
|
|
|
|
enum {
|
|
PTHREAD_MUTEX_NORMAL = 0,
|
|
PTHREAD_MUTEX_RECURSIVE = 1,
|
|
PTHREAD_MUTEX_ERRORCHECK = 2,
|
|
PTHREAD_MUTEX_ERRORCHECK_NP = PTHREAD_MUTEX_ERRORCHECK,
|
|
PTHREAD_MUTEX_RECURSIVE_NP = PTHREAD_MUTEX_RECURSIVE,
|
|
PTHREAD_MUTEX_DEFAULT = PTHREAD_MUTEX_NORMAL
|
|
};
|
|
|
|
/* init value for pthread_once_t */
|
|
#define PTHREAD_ONCE_INIT 0
|
|
|
|
enum {
|
|
PTHREAD_PRIO_INHERIT =0,
|
|
PTHREAD_PRIO_NONE,
|
|
PTHREAD_PRIO_PROTECT,
|
|
};
|
|
|
|
#define PTHREAD_PROCESS_PRIVATE 0
|
|
#define PTHREAD_PROCESS_SHARED 1
|
|
|
|
#define PTHREAD_SCOPE_PROCESS 0
|
|
#define PTHREAD_SCOPE_SYSTEM 1
|
|
|
|
struct pthread_attr
|
|
{
|
|
void* stack_base;
|
|
rt_uint16_t stack_size; /* stack size of thread */
|
|
|
|
rt_uint8_t priority; /* priority of thread */
|
|
rt_uint8_t detachstate; /* detach state */
|
|
rt_uint8_t policy; /* scheduler policy */
|
|
rt_uint8_t inheritsched; /* Inherit parent prio/policy */
|
|
};
|
|
typedef struct pthread_attr pthread_attr_t;
|
|
|
|
struct pthread_mutex
|
|
{
|
|
pthread_mutexattr_t attr;
|
|
struct rt_mutex lock;
|
|
};
|
|
typedef struct pthread_mutex pthread_mutex_t;
|
|
|
|
struct pthread_cond
|
|
{
|
|
pthread_condattr_t attr;
|
|
struct rt_semaphore sem;
|
|
};
|
|
typedef struct pthread_cond pthread_cond_t;
|
|
|
|
struct pthread_rwlock
|
|
{
|
|
pthread_rwlockattr_t attr;
|
|
|
|
pthread_mutex_t rw_mutex; /* basic lock on this struct */
|
|
pthread_cond_t rw_condreaders; /* for reader threads waiting */
|
|
pthread_cond_t rw_condwriters; /* for writer threads waiting */
|
|
|
|
int rw_nwaitreaders; /* the number of reader threads waiting */
|
|
int rw_nwaitwriters; /* the number of writer threads waiting */
|
|
int rw_refcount; /* 0: unlocked, -1: locked by writer, > 0 locked by n readers */
|
|
};
|
|
typedef struct pthread_rwlock pthread_rwlock_t;
|
|
|
|
/* spinlock implementation, (ADVANCED REALTIME THREADS)*/
|
|
struct pthread_spinlock
|
|
{
|
|
int lock;
|
|
};
|
|
typedef struct pthread_spinlock pthread_spinlock_t;
|
|
|
|
struct pthread_barrier
|
|
{
|
|
int count;
|
|
pthread_cond_t cond;
|
|
pthread_mutex_t mutex;
|
|
};
|
|
typedef struct pthread_barrier pthread_barrier_t;
|
|
|
|
/* pthread thread interface */
|
|
int pthread_attr_destroy(pthread_attr_t *attr);
|
|
int pthread_attr_init(pthread_attr_t *attr);
|
|
|
|
int pthread_system_init(void);
|
|
int pthread_create (pthread_t *tid, const pthread_attr_t *attr,
|
|
void *(*start) (void *), void *arg);
|
|
|
|
int pthread_detach (pthread_t thread);
|
|
int pthread_join (pthread_t thread, void **value_ptr);
|
|
|
|
rt_inline int pthread_equal (pthread_t t1, pthread_t t2)
|
|
{
|
|
return t1 == t2;
|
|
}
|
|
|
|
rt_inline pthread_t pthread_self (void)
|
|
{
|
|
return rt_thread_self();
|
|
}
|
|
|
|
void pthread_exit (void *value_ptr);
|
|
int pthread_once(pthread_once_t * once_control, void (*init_routine) (void));
|
|
|
|
/* pthread cleanup */
|
|
void pthread_cleanup_pop(int execute);
|
|
void pthread_cleanup_push(void (*routine)(void*), void *arg);
|
|
|
|
/* pthread cancel */
|
|
int pthread_cancel(pthread_t thread);
|
|
void pthread_testcancel(void);
|
|
int pthread_setcancelstate(int state, int *oldstate);
|
|
int pthread_setcanceltype(int type, int *oldtype);
|
|
|
|
int pthread_atfork(void (*prepare)(void), void (*parent)(void), void (*child)(void));
|
|
int pthread_kill(pthread_t thread, int sig);
|
|
|
|
/* pthread mutex interface */
|
|
int pthread_mutex_init(pthread_mutex_t *mutex, const pthread_mutexattr_t *attr);
|
|
int pthread_mutex_destroy(pthread_mutex_t *mutex);
|
|
int pthread_mutex_lock(pthread_mutex_t *mutex);
|
|
int pthread_mutex_unlock(pthread_mutex_t *mutex);
|
|
int pthread_mutex_trylock(pthread_mutex_t *mutex);
|
|
|
|
int pthread_mutexattr_init(pthread_mutexattr_t *attr);
|
|
int pthread_mutexattr_destroy(pthread_mutexattr_t *attr);
|
|
int pthread_mutexattr_gettype(const pthread_mutexattr_t *attr, int *type);
|
|
int pthread_mutexattr_settype(pthread_mutexattr_t *attr, int type);
|
|
int pthread_mutexattr_setpshared(pthread_mutexattr_t *attr, int pshared);
|
|
int pthread_mutexattr_getpshared(pthread_mutexattr_t *attr, int *pshared);
|
|
|
|
/* pthread condition interface */
|
|
int pthread_condattr_destroy(pthread_condattr_t *attr);
|
|
int pthread_condattr_init(pthread_condattr_t *attr);
|
|
|
|
/* ADVANCED REALTIME feature in IEEE Std 1003.1, 2004 Edition */
|
|
int pthread_condattr_getclock(const pthread_condattr_t *attr,
|
|
clockid_t *clock_id);
|
|
int pthread_condattr_setclock(pthread_condattr_t *attr,
|
|
clockid_t clock_id);
|
|
|
|
int pthread_cond_init(pthread_cond_t *cond, const pthread_condattr_t *attr);
|
|
int pthread_cond_destroy(pthread_cond_t *cond);
|
|
int pthread_cond_broadcast(pthread_cond_t *cond);
|
|
int pthread_cond_signal(pthread_cond_t *cond);
|
|
|
|
int pthread_cond_wait(pthread_cond_t *cond, pthread_mutex_t *mutex);
|
|
int pthread_cond_timedwait(pthread_cond_t *cond,
|
|
pthread_mutex_t * mutex,
|
|
const struct timespec *abstime);
|
|
|
|
/* pthread rwlock interface */
|
|
int pthread_rwlockattr_init (pthread_rwlockattr_t *attr);
|
|
int pthread_rwlockattr_destroy (pthread_rwlockattr_t *attr);
|
|
int pthread_rwlockattr_getpshared (const pthread_rwlockattr_t *attr, int *pshared);
|
|
int pthread_rwlockattr_setpshared (pthread_rwlockattr_t *attr, int pshared);
|
|
|
|
int pthread_rwlock_init (pthread_rwlock_t *rwlock, const pthread_rwlockattr_t *attr);
|
|
int pthread_rwlock_destroy (pthread_rwlock_t *rwlock);
|
|
|
|
int pthread_rwlock_rdlock (pthread_rwlock_t *rwlock);
|
|
int pthread_rwlock_tryrdlock (pthread_rwlock_t *rwlock);
|
|
|
|
int pthread_rwlock_timedrdlock (pthread_rwlock_t *rwlock, const struct timespec *abstime);
|
|
int pthread_rwlock_timedwrlock (pthread_rwlock_t *rwlock, const struct timespec *abstime);
|
|
|
|
int pthread_rwlock_unlock (pthread_rwlock_t *rwlock);
|
|
|
|
int pthread_rwlock_wrlock (pthread_rwlock_t *rwlock);
|
|
int pthread_rwlock_trywrlock (pthread_rwlock_t *rwlock);
|
|
|
|
/* pthread spinlock interface */
|
|
int pthread_spin_init (pthread_spinlock_t *lock, int pshared);
|
|
int pthread_spin_destroy (pthread_spinlock_t *lock);
|
|
|
|
int pthread_spin_lock (pthread_spinlock_t * lock);
|
|
int pthread_spin_trylock (pthread_spinlock_t * lock);
|
|
int pthread_spin_unlock (pthread_spinlock_t * lock);
|
|
|
|
/* pthread barrier interface */
|
|
int pthread_barrierattr_destroy(pthread_barrierattr_t *attr);
|
|
int pthread_barrierattr_init(pthread_barrierattr_t *attr);
|
|
int pthread_barrierattr_getpshared(const pthread_barrierattr_t *attr, int *pshared);
|
|
int pthread_barrierattr_setpshared(pthread_barrierattr_t *attr, int pshared);
|
|
|
|
int pthread_barrier_destroy(pthread_barrier_t *barrier);
|
|
int pthread_barrier_init(pthread_barrier_t *barrier,
|
|
const pthread_barrierattr_t *attr, unsigned count);
|
|
|
|
int pthread_barrier_wait(pthread_barrier_t *barrier);
|
|
|
|
/* Signal Generation and Delivery, P1003.1b-1993, p. 63
|
|
NOTE: P1003.1c/D10, p. 34 adds sigev_notify_function and
|
|
sigev_notify_attributes to the sigevent structure. */
|
|
union sigval {
|
|
int sival_int; /* Integer signal value */
|
|
void *sival_ptr; /* Pointer signal value */
|
|
};
|
|
|
|
struct sigevent {
|
|
int sigev_notify; /* Notification type */
|
|
int sigev_signo; /* Signal number */
|
|
union sigval sigev_value; /* Signal value */
|
|
void (*sigev_notify_function)( union sigval );
|
|
/* Notification function */
|
|
pthread_attr_t *sigev_notify_attributes; /* Notification Attributes */
|
|
};
|
|
|
|
/* posix clock and timer */
|
|
#define MILLISECOND_PER_SECOND 1000UL
|
|
#define MICROSECOND_PER_SECOND 1000000UL
|
|
#define NANOSECOND_PER_SECOND 1000000000UL
|
|
|
|
#define MILLISECOND_PER_TICK (MILLISECOND_PER_SECOND / RT_TICK_PER_SECOND)
|
|
#define MICROSECOND_PER_TICK (MICROSECOND_PER_SECOND / RT_TICK_PER_SECOND)
|
|
#define NANOSECOND_PER_TICK (NANOSECOND_PER_SECOND / RT_TICK_PER_SECOND)
|
|
|
|
#ifndef CLOCK_REALTIME
|
|
#define CLOCK_REALTIME 0
|
|
#endif
|
|
|
|
int clock_getres (clockid_t clockid, struct timespec *res);
|
|
int clock_gettime (clockid_t clockid, struct timespec *tp);
|
|
int clock_settime (clockid_t clockid, const struct timespec *tp);
|
|
|
|
#endif
|
|
|