Adding upstream version 4:7.4.7.upstream/4%7.4.7upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 172 insertions, 0 deletions

diff --git a/include/osl/conditn.hxx b/include/osl/conditn.hxx
new file mode 100644
index 000000000..5eb9ba431
--- /dev/null
+++ b/include/osl/conditn.hxx
@@ -0,0 +1,172 @@
+/* -*- 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: */