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diff --git a/nsprpub/pr/src/cplus/rccv.h b/nsprpub/pr/src/cplus/rccv.h
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+/* -*- 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/. */
+
+/*
+** RCCondition - C++ wrapper around NSPR's PRCondVar
+**
+** Conditions have a notion of timeouts. A thread that waits on a condition
+** will resume execution when the condition is notified OR when a specified
+** interval of time has expired.
+**
+** Most applications don't adjust the timeouts on conditions. The literature
+** would argue that all threads waiting on a single condition must have the
+** same semantics. But if an application wishes to modify the timeout with
+** (perhaps) each wait call, that modification should be done consistantly
+** and under protection of the condition's associated lock.
+**
+** The default timeout is infinity.
+*/
+
+#if defined(_RCCOND_H)
+#else
+#define _RCCOND_H
+
+#include "rclock.h"
+#include "rcbase.h"
+#include "rcinrval.h"
+
+struct PRCondVar;
+
+class PR_IMPLEMENT(RCCondition): public RCBase
+{
+public:
+ RCCondition(RCLock*); /* associates CV with a lock and infinite tmo */
+ virtual ~RCCondition();
+
+ virtual PRStatus Wait(); /* applies object's current timeout */
+
+ virtual PRStatus Notify(); /* perhaps ready one thread */
+ virtual PRStatus Broadcast(); /* perhaps ready many threads */
+
+ virtual PRStatus SetTimeout(const RCInterval&);
+ /* set object's current timeout value */
+
+private:
+ PRCondVar *cv;
+ RCInterval timeout;
+
+ RCCondition();
+ RCCondition(const RCCondition&);
+ void operator=(const RCCondition&);
+
+public:
+ RCInterval GetTimeout() const;
+}; /* RCCondition */
+
+inline RCCondition::RCCondition(): RCBase() { }
+inline RCCondition::RCCondition(const RCCondition&): RCBase() { }
+inline void RCCondition::operator=(const RCCondition&) { }
+
+#endif /* defined(_RCCOND_H) */
+
+/* RCCond.h */