mirror of
https://github.com/Telecominfraproject/wlan-cloud-lib-poco.git
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4efaa99fff
* Logger & Channel classes now using AutoPtr<Channel> instead of Channel* (API improvement) * fix CachingChannel * more fixes * Configuration: remove raw pointers from interfaces #2077 * Add WeakPtr to Foundation #2246 * Add WeakPtr to Foundation #2246 (buildsystems files) * Add WeakPtr to Foundation #2246 (x64 VS project files) * backtrace and Event fixes * add ordered map * add ordered set * add sanitize makefiles * update RefPtr doc * fix AtomicCounter includes * add ordered containers tests * fix xml test compile error * remove operator bool rom smart pointers * Poco::strToInt<> fails for values right above the type's boundary / limit #2250 * add g++ -ftrapv config * remove Version.h includes (now included from Config.h) * comment out offending SQLite test (TODO) * add AtomicFlag and SpinlockMutex * remove RefCountedObject include from RefPtr and WeakRefPtr mutex template param * add WeakRef SpinLockMutex threading test * WeakRefPtr, backtrace, NDC, refcount DC fixes * SQL fixes * update RCO documentation * XML/DOM: Remove raw pointers from public interfaces #2075 * few fixes * PocoDoc - make logger non-static reference member * remove path char array initialization * Fix failing unit test, adding d in debug mode for TestApp and TestLibrary * fix application config pointer * fix some crypto warnings * fix Process tests and consolidate TestApp name building * define PathImpl::selfImpl for WinCE * restore WinCE test app name extension * attempt to passify 32 bit clang * fix failing Active* tests * Add POCO_OS_ANDROID support for Path::self() * Add build dependencies between Foundation-testrunner and TestApp, TestLibrary in cmake build * Remove to set LD_LIBRARY_PATH on foundation test * revert to develop XML * fix VS150 env not found (hardcode it) * undef min/max
118 lines
2.4 KiB
C++
118 lines
2.4 KiB
C++
//
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// Event.h
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//
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// Library: Foundation
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// Package: Threading
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// Module: Event
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//
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// Definition of the Event class.
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//
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// Copyright (c) 2004-2006, Applied Informatics Software Engineering GmbH.
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// and Contributors.
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//
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// SPDX-License-Identifier: BSL-1.0
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//
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#ifndef Foundation_Event_INCLUDED
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#define Foundation_Event_INCLUDED
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#include "Poco/Foundation.h"
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#include "Poco/Exception.h"
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#include <condition_variable>
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#include <mutex>
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#include <atomic>
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namespace Poco {
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class Foundation_API Event
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/// An Event is a synchronization object that
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/// allows one thread to signal one or more
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/// other threads that a certain event
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/// has happened.
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/// Usually, one thread signals an event,
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/// while one or more other threads wait
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/// for an event to become signalled.
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{
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public:
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enum EventType
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{
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EVENT_MANUALRESET, /// Manual reset event
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EVENT_AUTORESET /// Auto-reset event
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};
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explicit Event(EventType type = EVENT_AUTORESET);
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/// Creates the event. If type is EVENT_AUTORESET,
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/// the event is automatically reset after
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/// a wait() successfully returns.
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//@ deprecated
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explicit Event(bool autoReset);
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/// Please use Event::Event(EventType) instead.
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~Event();
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/// Destroys the event.
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void set();
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/// Signals the event. If autoReset is true,
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/// only one thread waiting for the event
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/// can resume execution.
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/// If autoReset is false, all waiting threads
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/// can resume execution.
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void wait();
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/// Waits for the event to become signalled.
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void wait(long milliseconds);
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/// Waits for the event to become signalled.
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/// Throws a TimeoutException if the event
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/// does not become signalled within the specified
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/// time interval.
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bool tryWait(long milliseconds);
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/// Waits for the event to become signalled.
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/// Returns true if the event
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/// became signalled within the specified
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/// time interval, false otherwise.
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void reset();
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/// Resets the event to unsignalled state.
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private:
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Event(const Event&);
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Event& operator = (const Event&);
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bool waitImpl(long milliseconds);
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std::atomic<bool> _state;
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bool _autoreset;
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mutable std::mutex _mutex;
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std::condition_variable _cond;
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};
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//
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// inlines
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//
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inline void Event::wait(long milliseconds)
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{
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if (!waitImpl(milliseconds)) throw TimeoutException();
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}
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inline bool Event::tryWait(long milliseconds)
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{
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return waitImpl(milliseconds);
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}
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} // namespace Poco
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#endif // Foundation_Event_INCLUDED
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