From 5f8de423f190bbb79a62f804151bc24824fa32d8 Mon Sep 17 00:00:00 2001 From: "Matt A. Tobin" Date: Fri, 2 Feb 2018 04:16:08 -0500 Subject: Add m-esr52 at 52.6.0 --- nsprpub/pr/include/prcmon.h | 66 +++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 66 insertions(+) create mode 100644 nsprpub/pr/include/prcmon.h (limited to 'nsprpub/pr/include/prcmon.h') diff --git a/nsprpub/pr/include/prcmon.h b/nsprpub/pr/include/prcmon.h new file mode 100644 index 000000000..69171138b --- /dev/null +++ b/nsprpub/pr/include/prcmon.h @@ -0,0 +1,66 @@ +/* -*- 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___ */ -- cgit v1.2.3