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___ */ |