* cygwin.din: Add sem_close, sem_getvalue, sem_open and sem_timedwait.
* pthread.cc (+mangle_sem_name): New function. (sem_open): Ditto. (sem_close: Ditto. (sem_timedwait): Ditto. (sem_getvalue): Ditto. * thread.cc (semaphore::semaphore): Rearrange member initialization. Use appropriate security attribute for process shared semaphores. (semaphore::semaphore): New constructor for named semaphores. (semaphore::~semaphore): Care for semaphore name. (semaphore::_post): Accomodate failing ReleaseSemaphore. Use value returned by ReleaseSemaphore vor currentvalue. (semaphore::_getvalue): New method. (semaphore::_timedwait): Ditto. (semaphore::_fixup_after_fork): Rearrange. Don't fail for process shared semaphores. (semaphore::open): New method. (semaphore::timedwait): Ditto. (semaphore::post): Fix return value. Set errno appropriately. (semaphore::getvalue): New method. * thread.h (class semaphore): Add prototypes for open, getvalue, timedwait, _getvalue, _timedwait. Add prototypes for new constructor. Add name member. * include/semaphore.h: Add prototypes for sem_open, sem_close, sem_timedwait and sem_getvalue. include/cygwin/version.h: Bump API minor number.
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@ -710,15 +710,21 @@ public:
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/* API calls */
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static int init (sem_t * sem, int pshared, unsigned int value);
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static int destroy (sem_t * sem);
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static sem_t *open (const char *name, int oflag, mode_t mode,
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unsigned int value);
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static int wait (sem_t * sem);
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static int trywait (sem_t * sem);
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static int post (sem_t * sem);
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static int getvalue (sem_t * sem, int *sval);
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static int trywait (sem_t * sem);
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static int timedwait (sem_t * sem, const struct timespec *abstime);
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HANDLE win32_obj_id;
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int shared;
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long currentvalue;
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char *name;
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semaphore (int, unsigned int);
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semaphore (const char *name, int oflag, mode_t mode, unsigned int value);
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~semaphore ();
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class semaphore * next;
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@ -731,7 +737,9 @@ public:
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private:
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void _wait ();
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void _post ();
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int _getvalue (int *sval);
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int _trywait ();
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int _timedwait (const struct timespec *abstime);
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void _fixup_after_fork ();
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