diff options
Diffstat (limited to 'drivers/gator/daemon/OlySocket.cpp')
-rw-r--r-- | drivers/gator/daemon/OlySocket.cpp | 257 |
1 files changed, 0 insertions, 257 deletions
diff --git a/drivers/gator/daemon/OlySocket.cpp b/drivers/gator/daemon/OlySocket.cpp deleted file mode 100644 index 8a9ca970b94..00000000000 --- a/drivers/gator/daemon/OlySocket.cpp +++ /dev/null @@ -1,257 +0,0 @@ -/** - * Copyright (C) ARM Limited 2010-2012. All rights reserved. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - */ - -#include <stdio.h> -#ifdef WIN32 -#include <Winsock2.h> -#else -#include <netinet/in.h> -#include <sys/socket.h> -#include <unistd.h> -#include <netdb.h> -#endif -#include "OlySocket.h" -#include "Logging.h" - -#ifdef WIN32 -#define CLOSE_SOCKET(x) closesocket(x) -#define SHUTDOWN_RX_TX SD_BOTH -#define snprintf _snprintf -#else -#define CLOSE_SOCKET(x) close(x) -#define SHUTDOWN_RX_TX SHUT_RDWR -#endif - -extern void handleException(); - -OlySocket::OlySocket(int port, bool multiple) { -#ifdef WIN32 - WSADATA wsaData; - if (WSAStartup(0x0202, &wsaData) != 0) { - logg->logError(__FILE__, __LINE__, "Windows socket initialization failed"); - handleException(); - } -#endif - - if (multiple) { - createServerSocket(port); - } else { - createSingleServerConnection(port); - } -} - -OlySocket::OlySocket(int port, char* host) { - fdServer = 0; - createClientSocket(host, port); -} - -OlySocket::~OlySocket() { - if (mSocketID > 0) { - CLOSE_SOCKET(mSocketID); - } -} - -void OlySocket::shutdownConnection() { - // Shutdown is primarily used to unblock other threads that are blocking on send/receive functions - shutdown(mSocketID, SHUTDOWN_RX_TX); -} - -void OlySocket::closeSocket() { - // Used for closing an accepted socket but keeping the server socket active - if (mSocketID > 0) { - CLOSE_SOCKET(mSocketID); - mSocketID = -1; - } -} - -void OlySocket::closeServerSocket() { - if (CLOSE_SOCKET(fdServer) != 0) { - logg->logError(__FILE__, __LINE__, "Failed to close server socket."); - handleException(); - } - fdServer = 0; -} - -void OlySocket::createClientSocket(char* hostname, int portno) { -#ifdef WIN32 - // TODO: Implement for Windows -#else - char buf[32]; - struct addrinfo hints, *res, *res0; - - snprintf(buf, sizeof(buf), "%d", portno); - mSocketID = -1; - memset((void*)&hints, 0, sizeof(hints)); - hints.ai_family = PF_UNSPEC; - hints.ai_socktype = SOCK_STREAM; - - if (getaddrinfo(hostname, buf, &hints, &res0)) { - logg->logError(__FILE__, __LINE__, "Client socket failed to get address info for %s", hostname); - handleException(); - } - for (res=res0; res!=NULL; res = res->ai_next) { - if ( res->ai_family != PF_INET || res->ai_socktype != SOCK_STREAM ) - continue; - mSocketID = socket(res->ai_family, res->ai_socktype, res->ai_protocol); - if (mSocketID < 0) { - continue; - } - if (connect(mSocketID, res->ai_addr, res->ai_addrlen) < 0) { - close(mSocketID); - mSocketID = -1; - } - if (mSocketID > 0) break; - } - freeaddrinfo(res0); - if (mSocketID <= 0) { - logg->logError(__FILE__, __LINE__, "Could not connect to client socket. Ensure ARM Streamline is running."); - handleException(); - } -#endif -} - -void OlySocket::createSingleServerConnection(int port) { - createServerSocket(port); - - mSocketID = acceptConnection(); - closeServerSocket(); -} - -void OlySocket::createServerSocket(int port) { - // Create socket - fdServer = socket(PF_INET, SOCK_STREAM, IPPROTO_TCP); - if (fdServer < 0) { - logg->logError(__FILE__, __LINE__, "Error creating server socket"); - handleException(); - } - - // Enable address reuse, another solution would be to create the server socket once and only close it when the object exits - int on = 1; - if (setsockopt(fdServer, SOL_SOCKET, SO_REUSEADDR, (const char *)&on, sizeof(on)) != 0) { - logg->logError(__FILE__, __LINE__, "Setting server socket options failed"); - handleException(); - } - - // Create sockaddr_in structure, ensuring non-populated fields are zero - struct sockaddr_in sockaddr; - memset((void*)&sockaddr, 0, sizeof(struct sockaddr_in)); - sockaddr.sin_family = AF_INET; - sockaddr.sin_port = htons(port); - sockaddr.sin_addr.s_addr = INADDR_ANY; - - // Bind the socket to an address - if (bind(fdServer, (const struct sockaddr*)&sockaddr, sizeof(sockaddr)) < 0) { - logg->logError(__FILE__, __LINE__, "Binding of server socket failed.\nIs an instance already running?"); - handleException(); - } - - // Listen for connections on this socket - if (listen(fdServer, 1) < 0) { - logg->logError(__FILE__, __LINE__, "Listening of server socket failed"); - handleException(); - } -} - -// mSocketID is always set to the most recently accepted connection -// The user of this class should maintain the different socket connections, e.g. by forking the process -int OlySocket::acceptConnection() { - if (fdServer <= 0) { - logg->logError(__FILE__, __LINE__, "Attempting multiple connections on a single connection server socket or attempting to accept on a client socket"); - handleException(); - } - - // Accept a connection, note that this call blocks until a client connects - mSocketID = accept(fdServer, NULL, NULL); - if (mSocketID < 0) { - logg->logError(__FILE__, __LINE__, "Socket acceptance failed"); - handleException(); - } - return mSocketID; -} - -void OlySocket::send(char* buffer, int size) { - if (size <= 0 || buffer == NULL) { - return; - } - - while (size > 0) { - int n = ::send(mSocketID, buffer, size, 0); - if (n < 0) { - logg->logError(__FILE__, __LINE__, "Socket send error"); - handleException(); - } - size -= n; - buffer += n; - } -} - -// Returns the number of bytes received -int OlySocket::receive(char* buffer, int size) { - if (size <= 0 || buffer == NULL) { - return 0; - } - - int bytes = recv(mSocketID, buffer, size, 0); - if (bytes < 0) { - logg->logError(__FILE__, __LINE__, "Socket receive error"); - handleException(); - } else if (bytes == 0) { - logg->logMessage("Socket disconnected"); - return -1; - } - return bytes; -} - -// Receive exactly size bytes of data. Note, this function will block until all bytes are received -int OlySocket::receiveNBytes(char* buffer, int size) { - int bytes = 0; - while (size > 0 && buffer != NULL) { - bytes = recv(mSocketID, buffer, size, 0); - if (bytes < 0) { - logg->logError(__FILE__, __LINE__, "Socket receive error"); - handleException(); - } else if (bytes == 0) { - logg->logMessage("Socket disconnected"); - return -1; - } - buffer += bytes; - size -= bytes; - } - return bytes; -} - -// Receive data until a carriage return, line feed, or null is encountered, or the buffer fills -int OlySocket::receiveString(char* buffer, int size) { - int bytes_received = 0; - bool found = false; - - if (buffer == 0) - return 0; - - while (!found && bytes_received < size) { - // Receive a single character - int bytes = recv(mSocketID, &buffer[bytes_received], 1, 0); - if (bytes < 0) { - logg->logError(__FILE__, __LINE__, "Socket receive error"); - handleException(); - } else if (bytes == 0) { - logg->logMessage("Socket disconnected"); - return -1; - } - - // Replace carriage returns and line feeds with zero - if (buffer[bytes_received] == '\n' || buffer[bytes_received] == '\r' || buffer[bytes_received] == '\0') { - buffer[bytes_received] = '\0'; - found = true; - } - - bytes_received++; - } - - return bytes_received; -} |