| Index: mozilla/nsprpub/pr/include/obsolete/prsem.h
|
| ===================================================================
|
| --- mozilla/nsprpub/pr/include/obsolete/prsem.h (revision 191424)
|
| +++ mozilla/nsprpub/pr/include/obsolete/prsem.h (working copy)
|
| @@ -1,64 +0,0 @@
|
| -/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
|
| -/* This Source Code Form is subject to the terms of the Mozilla Public
|
| - * License, v. 2.0. If a copy of the MPL was not distributed with this
|
| - * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
|
| -
|
| -#ifndef prsem_h___
|
| -#define prsem_h___
|
| -
|
| -/*
|
| -** API for counting semaphores. Semaphores are counting synchronizing
|
| -** variables based on a lock and a condition variable. They are lightweight
|
| -** contention control for a given count of resources.
|
| -*/
|
| -#include "prtypes.h"
|
| -
|
| -PR_BEGIN_EXTERN_C
|
| -
|
| -typedef struct PRSemaphore PRSemaphore;
|
| -
|
| -/*
|
| -** Create a new semaphore object.
|
| -*/
|
| -NSPR_API(PRSemaphore*) PR_NewSem(PRUintn value);
|
| -
|
| -/*
|
| -** Destroy the given semaphore object.
|
| -**
|
| -*/
|
| -NSPR_API(void) PR_DestroySem(PRSemaphore *sem);
|
| -
|
| -/*
|
| -** Wait on a Semaphore.
|
| -**
|
| -** This routine allows a calling thread to wait or proceed depending upon the
|
| -** state of the semahore sem. The thread can proceed only if the counter value
|
| -** of the semaphore sem is currently greater than 0. If the value of semaphore
|
| -** sem is positive, it is decremented by one and the routine returns immediately
|
| -** allowing the calling thread to continue. If the value of semaphore sem is 0,
|
| -** the calling thread blocks awaiting the semaphore to be released by another
|
| -** thread.
|
| -**
|
| -** This routine can return PR_PENDING_INTERRUPT if the waiting thread
|
| -** has been interrupted.
|
| -*/
|
| -NSPR_API(PRStatus) PR_WaitSem(PRSemaphore *sem);
|
| -
|
| -/*
|
| -** This routine increments the counter value of the semaphore. If other threads
|
| -** are blocked for the semaphore, then the scheduler will determine which ONE
|
| -** thread will be unblocked.
|
| -*/
|
| -NSPR_API(void) PR_PostSem(PRSemaphore *sem);
|
| -
|
| -/*
|
| -** Returns the value of the semaphore referenced by sem without affecting
|
| -** the state of the semaphore. The value represents the semaphore vaule
|
| -F** at the time of the call, but may not be the actual value when the
|
| -** caller inspects it.
|
| -*/
|
| -NSPR_API(PRUintn) PR_GetValueSem(PRSemaphore *sem);
|
| -
|
| -PR_END_EXTERN_C
|
| -
|
| -#endif /* prsem_h___ */
|
|
|