From 2aa4a82499d4becd2284cdb482213d541b8804dd Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 28 Apr 2024 16:29:10 +0200 Subject: Adding upstream version 86.0.1. Signed-off-by: Daniel Baumann --- nsprpub/pr/include/obsolete/prsem.h | 64 +++++++++++++++++++++++++++++++++++++ 1 file changed, 64 insertions(+) create mode 100644 nsprpub/pr/include/obsolete/prsem.h (limited to 'nsprpub/pr/include/obsolete/prsem.h') diff --git a/nsprpub/pr/include/obsolete/prsem.h b/nsprpub/pr/include/obsolete/prsem.h new file mode 100644 index 0000000000..d1981d2b9b --- /dev/null +++ b/nsprpub/pr/include/obsolete/prsem.h @@ -0,0 +1,64 @@ +/* -*- 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___ */ -- cgit v1.2.3