| Index: mozilla/nsprpub/pr/include/pripcsem.h
|
| ===================================================================
|
| --- mozilla/nsprpub/pr/include/pripcsem.h (revision 191424)
|
| +++ mozilla/nsprpub/pr/include/pripcsem.h (working copy)
|
| @@ -1,101 +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/. */
|
| -
|
| -/*
|
| - * File: pripcsem.h
|
| - *
|
| - * Description: named semaphores for interprocess
|
| - * synchronization
|
| - *
|
| - * Unrelated processes obtain access to a shared semaphore
|
| - * by specifying its name.
|
| - *
|
| - * Our goal is to support named semaphores on at least
|
| - * Unix and Win32 platforms. The implementation will use
|
| - * one of the three native semaphore APIs: POSIX, System V,
|
| - * and Win32.
|
| - *
|
| - * Because POSIX named semaphores have kernel persistence,
|
| - * we are forced to have a delete function in this API.
|
| - */
|
| -
|
| -#ifndef pripcsem_h___
|
| -#define pripcsem_h___
|
| -
|
| -#include "prtypes.h"
|
| -#include "prio.h"
|
| -
|
| -PR_BEGIN_EXTERN_C
|
| -
|
| -/*
|
| - * PRSem is an opaque structure that represents a named
|
| - * semaphore.
|
| - */
|
| -typedef struct PRSem PRSem;
|
| -
|
| -/*
|
| - * PR_OpenSemaphore --
|
| - *
|
| - * Create or open a named semaphore with the specified name.
|
| - * A handle to the semaphore is returned.
|
| - *
|
| - * If the named semaphore doesn't exist and the PR_SEM_CREATE
|
| - * flag is specified, the named semaphore is created. The
|
| - * created semaphore needs to be removed from the system with
|
| - * a PR_DeleteSemaphore call.
|
| - *
|
| - * If PR_SEM_CREATE is specified, the third argument is the
|
| - * access permission bits of the new semaphore (same
|
| - * interpretation as the mode argument to PR_Open) and the
|
| - * fourth argument is the initial value of the new semaphore.
|
| - * If PR_SEM_CREATE is not specified, the third and fourth
|
| - * arguments are ignored.
|
| - */
|
| -
|
| -#define PR_SEM_CREATE 0x1 /* create if not exist */
|
| -#define PR_SEM_EXCL 0x2 /* fail if already exists */
|
| -
|
| -NSPR_API(PRSem *) PR_OpenSemaphore(
|
| - const char *name, PRIntn flags, PRIntn mode, PRUintn value);
|
| -
|
| -/*
|
| - * PR_WaitSemaphore --
|
| - *
|
| - * If the value of the semaphore is > 0, decrement the value and return.
|
| - * If the value is 0, sleep until the value becomes > 0, then decrement
|
| - * the value and return.
|
| - *
|
| - * The "test and decrement" operation is performed atomically.
|
| - */
|
| -
|
| -NSPR_API(PRStatus) PR_WaitSemaphore(PRSem *sem);
|
| -
|
| -/*
|
| - * PR_PostSemaphore --
|
| - *
|
| - * Increment the value of the named semaphore by 1.
|
| - */
|
| -
|
| -NSPR_API(PRStatus) PR_PostSemaphore(PRSem *sem);
|
| -
|
| -/*
|
| - * PR_CloseSemaphore --
|
| - *
|
| - * Close a named semaphore handle.
|
| - */
|
| -
|
| -NSPR_API(PRStatus) PR_CloseSemaphore(PRSem *sem);
|
| -
|
| -/*
|
| - * PR_DeleteSemaphore --
|
| - *
|
| - * Remove a named semaphore from the system.
|
| - */
|
| -
|
| -NSPR_API(PRStatus) PR_DeleteSemaphore(const char *name);
|
| -
|
| -PR_END_EXTERN_C
|
| -
|
| -#endif /* pripcsem_h___ */
|
|
|