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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 09:06:44 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 09:06:44 +0000
commited5640d8b587fbcfed7dd7967f3de04b37a76f26 (patch)
tree7a5f7c6c9d02226d7471cb3cc8fbbf631b415303 /include/osl/conditn.hxx
parentInitial commit. (diff)
downloadlibreoffice-ed5640d8b587fbcfed7dd7967f3de04b37a76f26.tar.xz
libreoffice-ed5640d8b587fbcfed7dd7967f3de04b37a76f26.zip
Adding upstream version 4:7.4.7.upstream/4%7.4.7upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
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diff --git a/include/osl/conditn.hxx b/include/osl/conditn.hxx
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+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * 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/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed
+ * with this work for additional information regarding copyright
+ * ownership. The ASF licenses this file to you under the Apache
+ * License, Version 2.0 (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.apache.org/licenses/LICENSE-2.0 .
+ */
+
+/*
+ * This file is part of LibreOffice published API.
+ */
+
+#ifndef INCLUDED_OSL_CONDITN_HXX
+#define INCLUDED_OSL_CONDITN_HXX
+
+#include "sal/config.h"
+
+#include <cstddef>
+
+#include "osl/time.h"
+#include "osl/conditn.h"
+
+#if defined(MACOSX) && defined(__ASSERT_MACROS_DEFINE_VERSIONS_WITHOUT_UNDERSCORES)
+# if __ASSERT_MACROS_DEFINE_VERSIONS_WITHOUT_UNDERSCORES == 1
+# undef check
+# endif
+#endif
+
+namespace osl
+{
+ /** Condition variable
+
+ A condition variable is essentially an object that is initially
+ cleared which a thread waits on until it is "set". It allows a
+ thread to synchronize execution by allowing other threads to wait
+ for the condition to change before that thread then continues
+ execution.
+
+ @deprecated use C++11's std::condition_variable instead
+ for a more robust and helpful condition.
+
+ @attention Warning: the Condition abstraction is inadequate for
+ any situation where there may be multiple threads setting,
+ waiting, and resetting the same condition. It can only be
+ used to synchronise interactions between two threads
+ cf. lost wakeups in http://www.cs.wustl.edu/~schmidt/win32-cv-1.html
+ */
+ class Condition
+ {
+ public:
+ enum Result
+ {
+ result_ok = osl_cond_result_ok, /*!< Successful completion. */
+ result_error = osl_cond_result_error, /*!< Error occurred. @see osl_getLastSocketError() */
+ result_timeout = osl_cond_result_timeout /*!< Blocking operation timed out. */
+ };
+
+ /** Create a condition.
+
+ @deprecated use C++11's std::condition_variable instead
+ for a more robust and helpful condition.
+ */
+ Condition()
+ {
+ condition = osl_createCondition();
+ }
+
+ /** Release the OS-structures and free condition data-structure.
+
+ @deprecated use C++11's std::condition_variable instead
+ for a more robust and helpful condition.
+ */
+ ~Condition()
+ {
+ osl_destroyCondition(condition);
+ }
+
+ /** Release all waiting threads, check returns true.
+
+ @deprecated use C++11's std::condition_variable instead
+ for a more robust and helpful condition.
+ */
+ void set()
+ {
+ osl_setCondition(condition);
+ }
+
+ /** Reset condition to false: wait() will block, check() returns
+ false.
+
+ @deprecated use C++11's std::condition_variable instead
+ for a more robust and helpful condition.
+ */
+ void reset() {
+ osl_resetCondition(condition);
+ }
+
+ /** Blocks the calling thread until condition is set.
+
+ @param [in] pTimeout Timeout to wait before ending the condition.
+ Defaults to NULL
+
+ @retval result_ok finished successfully
+ @retval result_error error occurred
+ @retval result_timeout timed out
+
+ @deprecated use C++11's std::condition_variable instead
+ for a more robust and helpful condition.
+ */
+ Result wait(const TimeValue *pTimeout = NULL)
+ {
+ return static_cast<Result>(osl_waitCondition(condition, pTimeout));
+ }
+
+#if defined LIBO_INTERNAL_ONLY
+ Result wait(TimeValue const & timeout) { return wait(&timeout); }
+#endif
+
+ /** Checks if the condition is set without blocking.
+
+ @retval true condition is set
+ @retval false condition is not set
+
+ @deprecated use C++11's std::condition_variable instead
+ for a more robust and helpful condition.
+ */
+ bool check()
+ {
+ return osl_checkCondition(condition);
+ }
+
+
+ private:
+ oslCondition condition; /*< condition variable */
+
+ /** Copy constructor
+
+ The underlying oslCondition has no reference count.
+
+ Since the underlying oslCondition is not a reference counted
+ object, copy constructed Condition may work on an already
+ destructed oslCondition object.
+
+ @deprecated use C++11's std::condition_variable instead
+ for a more robust and helpful condition.
+ */
+ Condition(const Condition& condition) SAL_DELETED_FUNCTION;
+
+ /** This assignment operator is deleted for the same reason as
+ the copy constructor.
+
+ @deprecated use C++11's std::condition_variable instead
+ for a more robust and helpful condition.
+ */
+ Condition& operator= (const Condition&) SAL_DELETED_FUNCTION;
+ };
+}
+
+#endif // INCLUDED_OSL_CONDITN_HXX
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */