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pthread.h
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2004-01-30
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202 lines
/* pthread.h: POSIX pthread interface
Copyright 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003 Red Hat, Inc.
Written by Marco Fuykschot <marco@ddi.nl>
This file is part of Cygwin.
This software is a copyrighted work licensed under the terms of the
Cygwin license. Please consult the file "CYGWIN_LICENSE" for
details. */
#include <sys/types.h>
#include <signal.h>
#include <sched.h>
#ifndef _PTHREAD_H
#define _PTHREAD_H
#ifdef __cplusplus
extern "C"
{
#endif
/* Defines. (These are correctly defined here as per
http://www.opengroup.org/onlinepubs/7908799/xsh/pthread.h.html */
/* FIXME: this should allocate a new cond variable, and return the value that
would normally be written to the passed parameter of pthread_cond_init(lvalue, NULL); */
/* #define PTHREAD_COND_INITIALIZER 0 */
#define PTHREAD_DESTRUCTOR_ITERATIONS 1
/* Tls has 64 items for pre win2000 - and we don't want to use them all :]
* Before committing discuss this with the list
*/
#define PTHREAD_KEYS_MAX 32
/* the default : joinable */
#define PTHREAD_CANCEL_ASYNCHRONOUS 1
/* defaults are enable, deferred */
#define PTHREAD_CANCEL_ENABLE 0
#define PTHREAD_CANCEL_DEFERRED 0
#define PTHREAD_CANCEL_DISABLE 1
#define PTHREAD_CANCELED ((void *)-1)
/* this should be a value that can never be a valid address */
#define PTHREAD_COND_INITIALIZER (pthread_cond_t)21
#define PTHREAD_CREATE_DETACHED 1
/* the default : joinable */
#define PTHREAD_CREATE_JOINABLE 0
#define PTHREAD_EXPLICIT_SCHED 1
#define PTHREAD_INHERIT_SCHED 0
#define PTHREAD_MUTEX_RECURSIVE 0
#define PTHREAD_MUTEX_ERRORCHECK 1
#define PTHREAD_MUTEX_NORMAL 2
#define PTHREAD_MUTEX_DEFAULT PTHREAD_MUTEX_ERRORCHECK
/* this should be too low to ever be a valid address */
#define PTHREAD_MUTEX_INITIALIZER (pthread_mutex_t)20
#define PTHREAD_ONCE_INIT { PTHREAD_MUTEX_INITIALIZER, 0 }
#define PTHREAD_PRIO_INHERIT
#define PTHREAD_PRIO_NONE
#define PTHREAD_PRIO_PROTECT
#define PTHREAD_PROCESS_SHARED 1
#define PTHREAD_PROCESS_PRIVATE 0
#define PTHREAD_RWLOCK_INITIALIZER (pthread_rwlock_t)22
/* process is the default */
#define PTHREAD_SCOPE_PROCESS 0
#define PTHREAD_SCOPE_SYSTEM 1
/* Attributes */
int pthread_attr_destroy (pthread_attr_t *);
int pthread_attr_getdetachstate (const pthread_attr_t *, int *);
int pthread_attr_getinheritsched (const pthread_attr_t *, int *);
int pthread_attr_getschedparam (const pthread_attr_t *, struct sched_param *);
int pthread_attr_getschedpolicy (const pthread_attr_t *, int *);
int pthread_attr_getscope (const pthread_attr_t *, int *);
int pthread_attr_init (pthread_attr_t *);
int pthread_attr_setdetachstate (pthread_attr_t *, int);
int pthread_attr_setinheritsched (pthread_attr_t *, int);
int pthread_attr_setschedparam (pthread_attr_t *, const struct sched_param *);
int pthread_attr_setschedpolicy (pthread_attr_t *, int);
int pthread_attr_setscope (pthread_attr_t *, int);
#ifdef _POSIX_THREAD_ATTR_STACKADDR
/* These functions may be implementable via some low level trickery. For now they are
* Not supported or implemented. The prototypes are here so if someone greps the
* source they will see these comments
*/
int pthread_attr_getstackaddr (const pthread_attr_t *, void **);
int pthread_attr_setstackaddr (pthread_attr_t *, void *);
#endif
#ifdef _POSIX_THREAD_ATTR_STACKSIZE
int pthread_attr_getstacksize (const pthread_attr_t *, size_t *);
int pthread_attr_setstacksize (pthread_attr_t *, size_t);
#endif
int pthread_cancel (pthread_t);
/* Macros for cleanup_push and pop;
* The function definitions are
void pthread_cleanup_push (void (*routine)(void*), void *arg);
void pthread_cleanup_pop (int execute);
*/
typedef void (*__cleanup_routine_type) (void *);
typedef struct _pthread_cleanup_handler
{
__cleanup_routine_type function;
void *arg;
struct _pthread_cleanup_handler *next;
} __pthread_cleanup_handler;
void _pthread_cleanup_push (__pthread_cleanup_handler *handler);
void _pthread_cleanup_pop (int execute);
#define pthread_cleanup_push(_fn, _arg) { __pthread_cleanup_handler __cleanup_handler = \
{ _fn, _arg, NULL }; \
_pthread_cleanup_push( &__cleanup_handler );
#define pthread_cleanup_pop(_execute) _pthread_cleanup_pop( _execute ); }
/* Condition variables */
int pthread_cond_broadcast (pthread_cond_t *);
int pthread_cond_destroy (pthread_cond_t *);
int pthread_cond_init (pthread_cond_t *, const pthread_condattr_t *);
int pthread_cond_signal (pthread_cond_t *);
int pthread_cond_timedwait (pthread_cond_t *,
pthread_mutex_t *, const struct timespec *);
int pthread_cond_wait (pthread_cond_t *, pthread_mutex_t *);
int pthread_condattr_destroy (pthread_condattr_t *);
int pthread_condattr_getpshared (const pthread_condattr_t *, int *);
int pthread_condattr_init (pthread_condattr_t *);
int pthread_condattr_setpshared (pthread_condattr_t *, int);
int pthread_create (pthread_t *, const pthread_attr_t *,
void *(*)(void *), void *);
int pthread_detach (pthread_t);
int pthread_equal (pthread_t, pthread_t);
void pthread_exit (void *);
int pthread_getschedparam (pthread_t, int *, struct sched_param *);
void *pthread_getspecific (pthread_key_t);
int pthread_join (pthread_t, void **);
int pthread_key_create (pthread_key_t *, void (*)(void *));
int pthread_key_delete (pthread_key_t);
/* Mutex's */
int pthread_mutex_destroy (pthread_mutex_t *);
int pthread_mutex_getprioceiling (const pthread_mutex_t *, int *);
int pthread_mutex_init (pthread_mutex_t *, const pthread_mutexattr_t *);
int pthread_mutex_lock (pthread_mutex_t *);
int pthread_mutex_setprioceiling (pthread_mutex_t *, int, int *);
int pthread_mutex_trylock (pthread_mutex_t *);
int pthread_mutex_unlock (pthread_mutex_t *);
int pthread_mutexattr_destroy (pthread_mutexattr_t *);
int pthread_mutexattr_getprioceiling (const pthread_mutexattr_t *, int *);
int pthread_mutexattr_getprotocol (const pthread_mutexattr_t *, int *);
int pthread_mutexattr_getpshared (const pthread_mutexattr_t *, int *);
int pthread_mutexattr_gettype (const pthread_mutexattr_t *, int *);
int pthread_mutexattr_init (pthread_mutexattr_t *);
int pthread_mutexattr_setprioceiling (pthread_mutexattr_t *, int);
int pthread_mutexattr_setprotocol (pthread_mutexattr_t *, int);
int pthread_mutexattr_setpshared (pthread_mutexattr_t *, int);
int pthread_mutexattr_settype (pthread_mutexattr_t *, int);
/* RW Locks */
int pthread_rwlock_destroy (pthread_rwlock_t *rwlock);
int pthread_rwlock_init (pthread_rwlock_t *rwlock, const pthread_rwlockattr_t *attr);
int pthread_rwlock_rdlock (pthread_rwlock_t *rwlock);
int pthread_rwlock_tryrdlock (pthread_rwlock_t *rwlock);
int pthread_rwlock_wrlock (pthread_rwlock_t *rwlock);
int pthread_rwlock_trywrlock (pthread_rwlock_t *rwlock);
int pthread_rwlock_unlock (pthread_rwlock_t *rwlock);
int pthread_rwlockattr_init (pthread_rwlockattr_t *rwlockattr);
int pthread_rwlockattr_getpshared (const pthread_rwlockattr_t *attr,
int *pshared);
int pthread_rwlockattr_setpshared (pthread_rwlockattr_t *attr, int pshared);
int pthread_rwlockattr_destroy (pthread_rwlockattr_t *rwlockattr);
int pthread_once (pthread_once_t *, void (*)(void));
/* Concurrency levels - X/Open interface */
int pthread_getconcurrency (void);
int pthread_setconcurrency (int);
pthread_t pthread_self (void);
int pthread_setcancelstate (int, int *);
int pthread_setcanceltype (int, int *);
int pthread_setschedparam (pthread_t, int, const struct sched_param *);
int pthread_setspecific (pthread_key_t, const void *);
void pthread_testcancel (void);
/* Non posix calls */
int pthread_suspend (pthread_t);
int pthread_continue (pthread_t);
#ifdef __cplusplus
}
#endif
#endif /* _PTHREAD_H */