/* -*- 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 prcmon_h___ #define prcmon_h___
/* ** Interface to cached monitors. Cached monitors use an address to find a ** given PR monitor. In this way a monitor can be associated with another ** object without preallocating a monitor for all objects. ** ** A hash table is used to quickly map addresses to individual monitors ** and the system automatically grows the hash table as needed. ** ** Cache monitors are about 5 times slower to use than uncached monitors.
*/ #include"prmon.h" #include"prinrval.h"
PR_BEGIN_EXTERN_C
/** ** Like PR_EnterMonitor except use the "address" to find a monitor in the ** monitor cache. If successful, returns the PRMonitor now associated ** with "address". Note that you must PR_CExitMonitor the address to ** release the monitor cache entry (otherwise the monitor cache will fill ** up). This call will return NULL if the monitor cache needs to be ** expanded and the system is out of memory.
*/
NSPR_API(PRMonitor*) PR_CEnterMonitor(void *address);
/* ** Like PR_ExitMonitor except use the "address" to find a monitor in the ** monitor cache.
*/
NSPR_API(PRStatus) PR_CExitMonitor(void *address);
/* ** Like PR_Wait except use the "address" to find a monitor in the ** monitor cache.
*/
NSPR_API(PRStatus) PR_CWait(void *address, PRIntervalTime timeout);
/* ** Like PR_Notify except use the "address" to find a monitor in the ** monitor cache.
*/
NSPR_API(PRStatus) PR_CNotify(void *address);
/* ** Like PR_NotifyAll except use the "address" to find a monitor in the ** monitor cache.
*/
NSPR_API(PRStatus) PR_CNotifyAll(void *address);
/* ** Set a callback to be invoked each time a monitor is recycled from the cache ** freelist, with the monitor's cache-key passed in address.
*/
NSPR_API(void) PR_CSetOnMonitorRecycle(void (PR_CALLBACK *callback)(void *address));
PR_END_EXTERN_C
#endif/* prcmon_h___ */
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