IVGCVSW-6706 Create the libpipeClient library

Change-Id: I2368aade38ad3808fab55d8a86cd659d4e95d91e
Signed-off-by: Jim Flynn <jim.flynn@arm.com>

1 files changed, 76 insertions, 0 deletions

diff --git a/profiling/client/src/BufferManager.hpp b/profiling/client/src/BufferManager.hpp
new file mode 100644
index 0000000000..0ab3e0e534
--- /dev/null
+++ b/profiling/client/src/BufferManager.hpp
@@ -0,0 +1,76 @@
+//
+// Copyright © 2019 Arm Ltd. All rights reserved.
+// SPDX-License-Identifier: MIT
+//
+
+#pragma once
+
+#include "IBufferManager.hpp"
+#include "IConsumer.hpp"
+
+#include <condition_variable>
+#include <mutex>
+#include <vector>
+#include <queue>
+
+namespace arm
+{
+
+namespace pipe
+{
+
+class BufferManager : public IBufferManager
+{
+public:
+    BufferManager(unsigned int numberOfBuffers = 5, unsigned int maxPacketSize = 4096);
+
+    ~BufferManager() {}
+
+    IPacketBufferPtr Reserve(unsigned int requestedSize, unsigned int& reservedSize) override;
+
+    void Reset();
+
+    void Commit(IPacketBufferPtr& packetBuffer, unsigned int size, bool notifyConsumer = true) override;
+
+    void Release(IPacketBufferPtr& packetBuffer) override;
+
+    IPacketBufferPtr GetReadableBuffer() override;
+
+    void MarkRead(IPacketBufferPtr& packetBuffer) override;
+
+    /// Set Consumer on the buffer manager to be notified when there is a Commit
+    /// Can only be one consumer
+    void SetConsumer(IConsumer* consumer) override;
+
+    /// Notify the Consumer buffer can be read
+    void FlushReadList() override;
+
+private:
+    void Initialize();
+
+    // Maximum buffer size
+    unsigned int m_MaxBufferSize;
+    // Number of buffers
+    const unsigned int m_NumberOfBuffers;
+    const unsigned int m_MaxNumberOfBuffers;
+    unsigned int m_CurrentNumberOfBuffers;
+
+    // List of available packet buffers
+    std::vector<IPacketBufferPtr> m_AvailableList;
+
+    // List of readable packet buffers
+    std::queue<IPacketBufferPtr> m_ReadableList;
+
+    // Mutex for available packet buffer list
+    std::mutex m_AvailableMutex;
+
+    // Mutex for readable packet buffer list
+    std::mutex m_ReadableMutex;
+
+    // Consumer thread to notify packet is ready to read
+    IConsumer* m_Consumer = nullptr;
+};
+
+} // namespace pipe
+
+} // namespace arm