diff options
Diffstat (limited to 'src/profiling/SocketProfilingConnection.cpp')
-rw-r--r-- | src/profiling/SocketProfilingConnection.cpp | 225 |
1 files changed, 0 insertions, 225 deletions
diff --git a/src/profiling/SocketProfilingConnection.cpp b/src/profiling/SocketProfilingConnection.cpp deleted file mode 100644 index a211567f7f..0000000000 --- a/src/profiling/SocketProfilingConnection.cpp +++ /dev/null @@ -1,225 +0,0 @@ -// -// Copyright © 2019 Arm Ltd and Contributors. All rights reserved. -// SPDX-License-Identifier: MIT -// - -#include "SocketProfilingConnection.hpp" - -#include <common/include/SocketConnectionException.hpp> - -#include <cerrno> -#include <cstring> -#include <fcntl.h> -#include <string> - - -namespace arm -{ -namespace pipe -{ - -SocketProfilingConnection::SocketProfilingConnection() -{ - arm::pipe::Initialize(); - memset(m_Socket, 0, sizeof(m_Socket)); - // Note: we're using Linux specific SOCK_CLOEXEC flag. - m_Socket[0].fd = socket(PF_UNIX, SOCK_STREAM | SOCK_CLOEXEC, 0); - if (m_Socket[0].fd == -1) - { - throw arm::pipe::SocketConnectionException( - std::string("SocketProfilingConnection: Socket construction failed: ") + strerror(errno), - m_Socket[0].fd, - errno); - } - - // Connect to the named unix domain socket. - sockaddr_un server{}; - memset(&server, 0, sizeof(sockaddr_un)); - // As m_GatorNamespace begins with a null character we need to ignore that when getting its length. - memcpy(server.sun_path, m_GatorNamespace, strlen(m_GatorNamespace + 1) + 1); - server.sun_family = AF_UNIX; - if (0 != connect(m_Socket[0].fd, reinterpret_cast<const sockaddr*>(&server), sizeof(sockaddr_un))) - { - Close(); - throw arm::pipe::SocketConnectionException( - std::string("SocketProfilingConnection: Cannot connect to stream socket: ") + strerror(errno), - m_Socket[0].fd, - errno); - } - - // Our socket will only be interested in polling reads. - m_Socket[0].events = POLLIN; - - // Make the socket non blocking. - if (!arm::pipe::SetNonBlocking(m_Socket[0].fd)) - { - Close(); - throw arm::pipe::SocketConnectionException( - std::string("SocketProfilingConnection: Failed to set socket as non blocking: ") + strerror(errno), - m_Socket[0].fd, - errno); - } -} - -bool SocketProfilingConnection::IsOpen() const -{ - return m_Socket[0].fd > 0; -} - -void SocketProfilingConnection::Close() -{ - if (arm::pipe::Close(m_Socket[0].fd) != 0) - { - throw arm::pipe::SocketConnectionException( - std::string("SocketProfilingConnection: Cannot close stream socket: ") + strerror(errno), - m_Socket[0].fd, - errno); - } - - memset(m_Socket, 0, sizeof(m_Socket)); -} - -bool SocketProfilingConnection::WritePacket(const unsigned char* buffer, uint32_t length) -{ - if (buffer == nullptr || length == 0) - { - return false; - } - - return arm::pipe::Write(m_Socket[0].fd, buffer, length) != -1; -} - -arm::pipe::Packet SocketProfilingConnection::ReadPacket(uint32_t timeout) -{ - // Is there currently at least a header worth of data waiting to be read? - int bytes_available = 0; - arm::pipe::Ioctl(m_Socket[0].fd, FIONREAD, &bytes_available); - if (bytes_available >= 8) - { - // Yes there is. Read it: - return ReceivePacket(); - } - - // Poll for data on the socket or until timeout occurs - int pollResult = arm::pipe::Poll(&m_Socket[0], 1, static_cast<int>(timeout)); - - switch (pollResult) - { - case -1: // Error - throw arm::pipe::SocketConnectionException( - std::string("SocketProfilingConnection: Error occured while reading from socket: ") + strerror(errno), - m_Socket[0].fd, - errno); - - case 0: // Timeout - throw arm::pipe::TimeoutException("SocketProfilingConnection: Timeout while reading from socket"); - - default: // Normal poll return but it could still contain an error signal - // Check if the socket reported an error - if (m_Socket[0].revents & (POLLNVAL | POLLERR | POLLHUP)) - { - if (m_Socket[0].revents == POLLNVAL) - { - // This is an unrecoverable error. - Close(); - throw arm::pipe::SocketConnectionException( - std::string("SocketProfilingConnection: Error occured while polling receiving socket: POLLNVAL."), - m_Socket[0].fd); - } - if (m_Socket[0].revents == POLLERR) - { - throw arm::pipe::SocketConnectionException( - std::string( - "SocketProfilingConnection: Error occured while polling receiving socket: POLLERR: ") - + strerror(errno), - m_Socket[0].fd, - errno); - } - if (m_Socket[0].revents == POLLHUP) - { - // This is an unrecoverable error. - Close(); - throw arm::pipe::SocketConnectionException( - std::string("SocketProfilingConnection: Connection closed by remote client: POLLHUP."), - m_Socket[0].fd); - } - } - - // Check if there is data to read - if (!(m_Socket[0].revents & (POLLIN))) - { - // This is a corner case. The socket as been woken up but not with any data. - // We'll throw a timeout exception to loop around again. - throw arm::pipe::TimeoutException( - "SocketProfilingConnection: File descriptor was polled but no data was available to receive."); - } - - return ReceivePacket(); - } -} - -arm::pipe::Packet SocketProfilingConnection::ReceivePacket() -{ - char header[8] = {}; - long receiveResult = arm::pipe::Read(m_Socket[0].fd, &header, sizeof(header)); - // We expect 8 as the result here. 0 means EOF, socket is closed. -1 means there been some other kind of error. - switch( receiveResult ) - { - case 0: - // Socket has closed. - Close(); - throw arm::pipe::SocketConnectionException( - std::string("SocketProfilingConnection: Remote socket has closed the connection."), - m_Socket[0].fd); - case -1: - // There's been a socket error. We will presume it's unrecoverable. - Close(); - throw arm::pipe::SocketConnectionException( - std::string("SocketProfilingConnection: Error occured while reading the packet: ") + strerror(errno), - m_Socket[0].fd, - errno); - default: - if (receiveResult < 8) - { - throw arm::pipe::SocketConnectionException( - std::string( - "SocketProfilingConnection: The received packet did not contains a valid PIPE header."), - m_Socket[0].fd); - } - break; - } - - // stream_metadata_identifier is the first 4 bytes - uint32_t metadataIdentifier = 0; - std::memcpy(&metadataIdentifier, header, sizeof(metadataIdentifier)); - - // data_length is the next 4 bytes - uint32_t dataLength = 0; - std::memcpy(&dataLength, header + 4u, sizeof(dataLength)); - - std::unique_ptr<unsigned char[]> packetData; - if (dataLength > 0) - { - packetData = std::make_unique<unsigned char[]>(dataLength); - long receivedLength = arm::pipe::Read(m_Socket[0].fd, packetData.get(), dataLength); - if (receivedLength < 0) - { - throw arm::pipe::SocketConnectionException( - std::string("SocketProfilingConnection: Error occured while reading the packet: ") + strerror(errno), - m_Socket[0].fd, - errno); - } - if (dataLength != static_cast<uint32_t>(receivedLength)) - { - // What do we do here if we can't read in a full packet? - throw arm::pipe::SocketConnectionException( - std::string("SocketProfilingConnection: Invalid PIPE packet."), - m_Socket[0].fd); - } - } - - return arm::pipe::Packet(metadataIdentifier, dataLength, packetData); -} - -} // namespace pipe -} // namespace arm |