mirror of
https://github.com/mozilla/gecko-dev.git
synced 2024-11-01 22:55:23 +00:00
4609d05467
the following changes: - Bug 439144: fixed strict aliasing issues in prdtoa.c - Bug 449665: suppress the parentheses warnings in prdtoa.c - Bug 442706: build for Symbian OS with autoconf and GNU make - Bug 432430: some more changes for the Symbian OS port - Bug 476536: added PR_ASSERT_CURRENT_THREAD_OWNS_LOCK and PR_ASSERT_CURRENT_THREAD_IN_MONITOR. - Bug 478687: made PRUint64/uint64 compatible with uint64_t for 64-bit Mac OS X - Bug 480730: PR_LoadLibrary for 64-bit MAC OS X should not search DYLD_LIBRARY_PATH if the library is specified as a pathname - Bug 480740: PR_ParseTimeString crash with dates >= year 3001 when compiled with Visual C++ 2005. - Bug 480074: better dependency resolution for import libraries - Bug 469083: ported NSPR test programs to WINCE - Bug 433790: removed some obsolete WIN16 code
142 lines
5.2 KiB
C
142 lines
5.2 KiB
C
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
|
|
/* ***** BEGIN LICENSE BLOCK *****
|
|
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
|
|
*
|
|
* The contents of this file are subject to the Mozilla Public License Version
|
|
* 1.1 (the "License"); you may not use this file except in compliance with
|
|
* the License. You may obtain a copy of the License at
|
|
* http://www.mozilla.org/MPL/
|
|
*
|
|
* Software distributed under the License is distributed on an "AS IS" basis,
|
|
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
|
|
* for the specific language governing rights and limitations under the
|
|
* License.
|
|
*
|
|
* The Original Code is the Netscape Portable Runtime (NSPR).
|
|
*
|
|
* The Initial Developer of the Original Code is
|
|
* Netscape Communications Corporation.
|
|
* Portions created by the Initial Developer are Copyright (C) 1998-2000
|
|
* the Initial Developer. All Rights Reserved.
|
|
*
|
|
* Contributor(s):
|
|
*
|
|
* Alternatively, the contents of this file may be used under the terms of
|
|
* either the GNU General Public License Version 2 or later (the "GPL"), or
|
|
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
|
|
* in which case the provisions of the GPL or the LGPL are applicable instead
|
|
* of those above. If you wish to allow use of your version of this file only
|
|
* under the terms of either the GPL or the LGPL, and not to allow others to
|
|
* use your version of this file under the terms of the MPL, indicate your
|
|
* decision by deleting the provisions above and replace them with the notice
|
|
* and other provisions required by the GPL or the LGPL. If you do not delete
|
|
* the provisions above, a recipient may use your version of this file under
|
|
* the terms of any one of the MPL, the GPL or the LGPL.
|
|
*
|
|
* ***** END LICENSE BLOCK ***** */
|
|
|
|
/*
|
|
** File: prlock.h
|
|
** Description: API to basic locking functions of NSPR.
|
|
**
|
|
**
|
|
** NSPR provides basic locking mechanisms for thread synchronization. Locks
|
|
** are lightweight resource contention controls that prevent multiple threads
|
|
** from accessing something (code/data) simultaneously.
|
|
**/
|
|
|
|
#ifndef prlock_h___
|
|
#define prlock_h___
|
|
|
|
#include "prtypes.h"
|
|
|
|
PR_BEGIN_EXTERN_C
|
|
|
|
/**********************************************************************/
|
|
/************************* TYPES AND CONSTANTS ************************/
|
|
/**********************************************************************/
|
|
|
|
/*
|
|
* PRLock --
|
|
*
|
|
* NSPR represents the lock as an opaque entity to the client of the
|
|
* API. All routines operate on a pointer to this opaque entity.
|
|
*/
|
|
|
|
typedef struct PRLock PRLock;
|
|
|
|
/**********************************************************************/
|
|
/****************************** FUNCTIONS *****************************/
|
|
/**********************************************************************/
|
|
|
|
/***********************************************************************
|
|
** FUNCTION: PR_NewLock
|
|
** DESCRIPTION:
|
|
** Returns a pointer to a newly created opaque lock object.
|
|
** INPUTS: void
|
|
** OUTPUTS: void
|
|
** RETURN: PRLock*
|
|
** If the lock can not be created because of resource constraints, NULL
|
|
** is returned.
|
|
**
|
|
***********************************************************************/
|
|
NSPR_API(PRLock*) PR_NewLock(void);
|
|
|
|
/***********************************************************************
|
|
** FUNCTION: PR_DestroyLock
|
|
** DESCRIPTION:
|
|
** Destroys a given opaque lock object.
|
|
** INPUTS: PRLock *lock
|
|
** Lock to be freed.
|
|
** OUTPUTS: void
|
|
** RETURN: None
|
|
***********************************************************************/
|
|
NSPR_API(void) PR_DestroyLock(PRLock *lock);
|
|
|
|
/***********************************************************************
|
|
** FUNCTION: PR_Lock
|
|
** DESCRIPTION:
|
|
** Lock a lock.
|
|
** INPUTS: PRLock *lock
|
|
** Lock to locked.
|
|
** OUTPUTS: void
|
|
** RETURN: None
|
|
***********************************************************************/
|
|
NSPR_API(void) PR_Lock(PRLock *lock);
|
|
|
|
/***********************************************************************
|
|
** FUNCTION: PR_Unlock
|
|
** DESCRIPTION:
|
|
** Unlock a lock. Unlocking an unlocked lock has undefined results.
|
|
** INPUTS: PRLock *lock
|
|
** Lock to unlocked.
|
|
** OUTPUTS: void
|
|
** RETURN: PR_STATUS
|
|
** Returns PR_FAILURE if the caller does not own the lock.
|
|
***********************************************************************/
|
|
NSPR_API(PRStatus) PR_Unlock(PRLock *lock);
|
|
|
|
/***********************************************************************
|
|
** MACRO: PR_ASSERT_CURRENT_THREAD_OWNS_LOCK
|
|
** DESCRIPTION:
|
|
** If the current thread owns |lock|, this assertion is guaranteed to
|
|
** succeed. Otherwise, the behavior of this function is undefined.
|
|
** INPUTS: PRLock *lock
|
|
** Lock to assert ownership of.
|
|
** OUTPUTS: void
|
|
** RETURN: None
|
|
***********************************************************************/
|
|
#if defined(DEBUG) || defined(FORCE_PR_ASSERT)
|
|
#define PR_ASSERT_CURRENT_THREAD_OWNS_LOCK(/* PrLock* */ lock) \
|
|
PR_AssertCurrentThreadOwnsLock(lock)
|
|
#else
|
|
#define PR_ASSERT_CURRENT_THREAD_OWNS_LOCK(/* PrLock* */ lock)
|
|
#endif
|
|
|
|
/* Don't call this function directly. */
|
|
NSPR_API(void) PR_AssertCurrentThreadOwnsLock(PRLock *lock);
|
|
|
|
PR_END_EXTERN_C
|
|
|
|
#endif /* prlock_h___ */
|