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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_atfork (void (*prepare)(void),
void (*parent)(void),
void (*child)(void));
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 */
/* The following #defines implement POSIX cleanup handlers.
The standard requires that these functions be used as statements and
be used pairwise in the same scope. The standard suggests that, in C, they
may be implemented as macros starting and ending the same block.
*/
#ifdef pthread_cleanup_push
#undef pthread_cleanup_push
#endif
#define pthread_cleanup_push(routine, arg) \
{ \
_pthread_cleanup_push(routine, arg);
#ifdef pthread_cleanup_pop
#undef pthread_cleanup_pop
#endif
#define pthread_cleanup_pop(execute) \
_pthread_cleanup_pop(execute);\
}
/* 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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