From c0d1c86b1bb1b4e129c292549845e00dfd8abfee Mon Sep 17 00:00:00 2001
From: Georgios Pinitas <georgios.pinitas@arm.com>
Date: Fri, 23 Mar 2018 15:13:15 +0000
Subject: COMPMID-734: CLTuner rework

Change-Id: I8f20d6ea8a09869d71003e7b08e0d33775282f6c
Reviewed-on: https://eu-gerrit-1.euhpc.arm.com/125802
Tested-by: Jenkins <bsgcomp@arm.com>
Reviewed-by: Anthony Barbier <anthony.barbier@arm.com>
---
 arm_compute/core/utils/misc/Signal.h | 99 ++++++++++++++++++++++++++++++++++++
 1 file changed, 99 insertions(+)
 create mode 100644 arm_compute/core/utils/misc/Signal.h

(limited to 'arm_compute/core/utils')

diff --git a/arm_compute/core/utils/misc/Signal.h b/arm_compute/core/utils/misc/Signal.h
new file mode 100644
index 0000000000..71f13951b9
--- /dev/null
+++ b/arm_compute/core/utils/misc/Signal.h
@@ -0,0 +1,99 @@
+/*
+ * Copyright (c) 2018 ARM Limited.
+ *
+ * SPDX-License-Identifier: MIT
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+#ifndef __ARM_COMPUTE_MISC_SIGNAL_H__
+#define __ARM_COMPUTE_MISC_SIGNAL_H__
+
+#include <functional>
+
+namespace arm_compute
+{
+namespace utils
+{
+namespace signal
+{
+namespace detail
+{
+/** Base signal class */
+template <typename SignalType>
+class SignalImpl;
+
+/** Signal class function specialization */
+template <typename ReturnType, typename... Args>
+class SignalImpl<ReturnType(Args...)>
+{
+public:
+    using Callback = std::function<ReturnType(Args...)>;
+
+public:
+    /** Default Constructor */
+    SignalImpl() = default;
+
+    /** Connects signal
+     *
+     * @param[in] cb Callback to connect the signal with
+     */
+    void connect(const Callback &cb)
+    {
+        _cb = cb;
+    }
+
+    /** Disconnects the signal */
+    void disconnect()
+    {
+        _cb = nullptr;
+    }
+
+    /** Checks if the signal is connected
+     *
+     * @return True if there is a connection else false
+     */
+    bool connected() const
+    {
+        return (_cb != nullptr);
+    }
+
+    /** Calls the connected callback
+     *
+     * @param[in] args Callback arguments
+     */
+    void operator()(Args &&... args)
+    {
+        if(_cb)
+        {
+            _cb(std::forward<Args>(args)...);
+        }
+    }
+
+private:
+    Callback _cb{}; /**< Signal callback */
+};
+} // namespace detail
+
+/** Signal alias */
+template <class T>
+using Signal = detail::SignalImpl<T>;
+} // namespace signal
+} // namespace utils
+} // namespace arm_compute
+#endif /* __ARM_COMPUTE_MISC_SIGNAL_H__ */
-- 
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