| // |
| // Copyright © 2019 Arm Ltd. All rights reserved. |
| // SPDX-License-Identifier: MIT |
| // |
| |
| #pragma once |
| |
| #include <CommandHandlerRegistry.hpp> |
| #include <Packet.hpp> |
| |
| #include <atomic> |
| #include <string> |
| #include <thread> |
| |
| namespace armnn |
| { |
| |
| namespace gatordmock |
| { |
| |
| enum class TargetEndianness |
| { |
| BeWire, |
| LeWire |
| }; |
| |
| enum class PacketDirection |
| { |
| Sending, |
| ReceivedHeader, |
| ReceivedData |
| }; |
| |
| /// A class that implements a Mock Gatord server. It will listen on a specified Unix domain socket (UDS) |
| /// namespace for client connections. It will then allow opertaions to manage coutners while receiving counter data. |
| class GatordMockService |
| { |
| public: |
| /// @param registry reference to a command handler registry. |
| /// @param echoPackets if true the raw packets will be printed to stdout. |
| GatordMockService(armnn::profiling::CommandHandlerRegistry& registry, bool echoPackets) |
| : m_HandlerRegistry(registry) |
| , m_EchoPackets(echoPackets) |
| { |
| m_PacketsReceivedCount.store(0, std::memory_order_relaxed); |
| } |
| |
| ~GatordMockService() |
| { |
| // We have set SOCK_CLOEXEC on these sockets but we'll close them to be good citizens. |
| close(m_ClientConnection); |
| close(m_ListeningSocket); |
| } |
| |
| /// Establish the Unix domain socket and set it to listen for connections. |
| /// @param udsNamespace the namespace (socket address) associated with the listener. |
| /// @return true only if the socket has been correctly setup. |
| bool OpenListeningSocket(std::string udsNamespace); |
| |
| /// Block waiting to accept one client to connect to the UDS. |
| /// @return the file descriptor of the client connection. |
| int BlockForOneClient(); |
| |
| /// Once the connection is open wait to receive the stream meta data packet from the client. Reading this |
| /// packet differs from others as we need to determine endianness. |
| /// @return true only if a valid stream met data packet has been received. |
| bool WaitForStreamMetaData(); |
| |
| /// Send a connection acknowledged packet back to the client. |
| void SendConnectionAck(); |
| |
| /// Send a request counter directory packet back to the client. |
| void SendRequestCounterDir(); |
| |
| /// Start the thread that will receive all packets and print them nicely to stdout. |
| bool LaunchReceivingThread(); |
| |
| /// Return the total number of periodic counter capture packets received since the receive thread started. |
| /// @return number of periodic counter capture packets received. |
| uint32_t GetPacketsReceivedCount() |
| { |
| return m_PacketsReceivedCount.load(std::memory_order_acquire); |
| } |
| |
| /// This is a placeholder method to prevent main exiting. It can be removed once the |
| /// command handling code is added. |
| void WaitForReceivingThread(); |
| |
| /// Send the counter list to ArmNN. |
| void SendPeriodicCounterSelectionList(uint32_t period, std::vector<uint16_t> counters); |
| |
| /// Execute the WAIT command from the comamnd file. |
| void WaitCommand(uint timeout); |
| |
| uint32_t GetStreamMetadataVersion() |
| { |
| return m_StreamMetaDataVersion; |
| } |
| |
| uint32_t GetStreamMetadataMaxDataLen() |
| { |
| return m_StreamMetaDataMaxDataLen; |
| } |
| |
| uint32_t GetStreamMetadataPid() |
| { |
| return m_StreamMetaDataPid; |
| } |
| |
| private: |
| void ReceiveLoop(GatordMockService& mockService); |
| |
| /// Block on the client connection until a complete packet has been received. This is a placeholder function to |
| /// enable early testing of the tool. |
| /// @return true if a valid packet has been received. |
| armnn::profiling::Packet WaitForPacket(uint32_t timeoutMs); |
| |
| armnn::profiling::Packet ReceivePacket(); |
| |
| bool SendPacket(uint32_t packetFamily, uint32_t packetId, const u_char* data, uint32_t dataLength); |
| |
| void EchoPacket(PacketDirection direction, u_char* packet, size_t lengthInBytes); |
| |
| bool ReadHeader(uint32_t headerAsWords[2]); |
| |
| bool ReadFromSocket(u_char* packetData, uint32_t expectedLength); |
| |
| uint32_t ToUint32(u_char* data, TargetEndianness endianness); |
| |
| void InsertU32(uint32_t value, u_char* data, TargetEndianness endianness); |
| |
| static const uint32_t PIPE_MAGIC = 0x45495434; |
| |
| std::atomic<uint32_t> m_PacketsReceivedCount; |
| TargetEndianness m_Endianness; |
| uint32_t m_StreamMetaDataVersion; |
| uint32_t m_StreamMetaDataMaxDataLen; |
| uint32_t m_StreamMetaDataPid; |
| |
| armnn::profiling::CommandHandlerRegistry& m_HandlerRegistry; |
| |
| bool m_EchoPackets; |
| int m_ListeningSocket; |
| int m_ClientConnection; |
| std::thread m_ListeningThread; |
| std::atomic<bool> m_CloseReceivingThread; |
| }; |
| } // namespace gatordmock |
| |
| } // namespace armnn |