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/* This is the POSIX thread API (POSIX 1003).
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library 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
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
/* FIXME: do not include function prototypes for functions which are
not yet implemented. This will allow us to keep a better handle on
where we're at. */
#ifndef _PTHREADS_H
#define _PTHREADS_H
typedef HANDLE pthread_t;
typedef CRITICAL_SECTION pthread_mutex_t;
typedef DWORD pthread_key_t;
typedef struct {
enum { SIGNAL, BROADCAST, NUM_EVENTS };
/* Signal and broadcast event HANDLEs. */
HANDLE events[NUM_EVENTS];
/* Count of the number of waiters. */
unsigned waiters_count;
/* Serialize access to waiters_count. */
pthread_mutex_t waiters_count_lock;
} pthread_cond_t;
typedef struct { void * ptr; } pthread_condattr_t;
typedef struct { void * ptr; } pthread_mutexattr_t;
typedef struct {
unsigned short flag;
pthread_mutex_t lock;
} pthread_once_t;
#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */
int pthread_create(pthread_t *thread,
const pthread_attr_t *attr,
void * (*start_routine) (void *),
void * arg);
void pthread_exit(void *value);
pthread_t pthread_self(void);
int pthread_equal(pthread_t t1, pthread_t t2);
int pthread_join(pthread_t thread, void ** valueptr);
int pthread_once(pthread_once_t *once_control, void (*init_routine)(void));
/* Functions for manipulating thread attribute objects. */
int pthread_attr_init(pthread_attr_t *attr);
int pthread_attr_destroy(pthread_attr_t *attr);
int pthread_attr_setstacksize(pthread_attr_t *attr,
size_t stacksize);
int pthread_attr_getstacksize(const pthread_attr_t *attr,
size_t *stacksize);
int pthread_attr_setstackaddr(pthread_attr_t *attr,
void *stackaddr);
int pthread_attr_getstackaddr(const pthread_attr_t *attr,
void **stackaddr);
/* Functions for manipulating cond. var. attribute objects. */
int pthread_condattr_init(pthread_condattr_t *attr);
int pthread_condattr_setpshared(pthread_condattr_t *attr,
int pshared);
int pthread_condattr_getpshared(pthread_condattr_t *attr,
int *pshared);
int pthread_condattr_destroy(pthread_condattr_t *attr);
/* Functions for manipulating mutex attribute objects. */
int pthread_mutexattr_init(pthread_mutexattr_t *attr);
int pthread_mutexattr_destroy(pthread_mutexattr_t *attr);
int pthread_mutexattr_setpshared(pthread_mutexattr_t *attr,
int pshared);
int pthread_mutexattr_getpshared(pthread_mutexattr_t *attr,
int *pshared);
/* Primitives for condition variables. */
int pthread_cond_init(pthread_cond_t *cv,
const pthread_condattr_t *attr);
int pthread_cond_broadcast(pthread_cond_t *cv);
int pthread_cond_signal(pthread_cond_t *cv);
int pthread_cond_timedwait(pthread_cond_t *cv,
pthread_mutex_t *mutex,
const struct timespec *abstime);
int pthread_cond_wait(pthread_cond_t *cv,
pthread_mutex_t *mutex);
int pthread_cond_destroy(pthread_cond_t *cv);
/* Primitives for mutexes. */
int pthread_mutex_init(pthread_mutex_t *mutex,
pthread_mutex_attr_t *attr);
int pthread_mutex_destroy(pthread_mutex_t *mutex);
int pthread_mutex_lock(pthread_mutex_t *mutex);
int pthread_mutex_trylock(pthread_mutex_t *mutex);
int pthread_mutex_unlock(pthread_mutex_t *mutex);
/* These functions cannot be implemented in terms of the Win32 API.
Fortunately they are optional. Their implementation just returns
the correct error number. */
int pthread_mutexattr_setprotocol(pthread_mutexattr_t *attr,
int protocol);
int pthread_mutexattr_getprotocol(const pthread_mutexattr_t *attr,
int *protocol);
int pthread_mutexattr_setprioceiling(pthread_mutexattr_t *attr,
int prioceiling);
int pthread_mutexattr_getprioceiling(const pthread_mutexattr_t *attr,
int *ceiling);
/* Primitives for thread-specific data (TSD). */
int pthread_key_create(pthread_key_t *key,
void (*destructor)(void *));
int pthread_setspecific(pthread_key_t key, void *value);
void *pthread_getspecific(pthread_key_t key);
int pthread_key_delete(pthread_key_t key);
#ifdef __cplusplus
}
#endif /* __cplusplus */
/* Below here goes all internal definitions required by this implementation
of pthreads for Win32.
*/
/* An element in the thread table. */
typedef struct _pthread_threads_thread _pthread_threads_thread_t;
struct _pthread_threads_thread {
pthread_t thread;
_pthread_attr_t *attr;
};
/* _PTHREAD_BUILD_DLL must only be defined if we are building the DLL. */
#ifndef _PTHREADS_BUILD_DLL
/* Static global data that must be static within the application
but not the DLL.
*/
pthread_mutex_t _pthread_count_mutex = PTHREAD_MUTEX_INITIALIZER;
DWORD _pthread_threads_count = 0;
_pthread_threads_thread_t _pthread_threads_table[PTHREAD_THREADS_MAX];
unsigned short _pthread_once_flag;
pthread_mutex_t _pthread_once_lock = PTHREAD_MUTEX_INITIALIZER;
#else
extern pthread_mutex_t _pthread_count_mutex;
extern DWORD _pthread_threads_count;
extern _pthread_threads_thread_t _pthread_threads_table[];
extern unsigned short _pthread_once_flag;
pthread_mutex_t _pthread_once_lock;
#endif
/* End of application static data */
#endif /* _PTHREADS_H */
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