/usr/include/firefox/prlock.h is in firefox-dev 11.0+build1-0ubuntu4.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 | /* -*- 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___ */
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