mirror of
https://github.com/thestk/stk
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Version 4.2.1
This commit is contained in:
Gary Scavone
committed by
Stephen Sinclair
Stephen Sinclair
parent
a6381b9d38
commit
2cbce2d8bd
198
src/Socket.cpp
198
src/Socket.cpp
@@ -1,171 +1,46 @@
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/***************************************************/
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/*! \class Socket
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\brief STK TCP socket client/server class.
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\brief STK internet socket abstract base class.
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This class provides a uniform cross-platform
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TCP socket client or socket server interface.
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Methods are provided for reading or writing
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data buffers to/from connections. This class
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also provides a number of static functions for
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use with external socket descriptors.
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This class provides common functionality for TCP and UDP internet
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socket server and client subclasses.
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The user is responsible for checking the values
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returned by the read/write methods. Values
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less than or equal to zero indicate a closed
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or lost connection or the occurence of an error.
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by Perry R. Cook and Gary P. Scavone, 1995 - 2004.
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by Perry R. Cook and Gary P. Scavone, 1995 - 2005.
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*/
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/***************************************************/
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#include "Socket.h"
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#include <stdio.h>
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#include <string.h>
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#if (defined(__OS_IRIX__) || defined(__OS_LINUX__) || defined(__OS_MACOSX__))
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#include <sys/socket.h>
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#include <sys/types.h>
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#include <arpa/inet.h>
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#include <netdb.h>
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#include <unistd.h>
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#include <fcntl.h>
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#include <netinet/in.h>
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#include <netinet/tcp.h>
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#elif defined(__OS_WINDOWS__)
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#include <winsock.h>
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#endif
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Socket :: Socket( int port )
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Socket :: Socket()
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{
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soket_ = -1;
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server_ = true;
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port_ = port;
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// Create a socket server.
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#if defined(__OS_WINDOWS__) // windoze-only stuff
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WSADATA wsaData;
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WORD wVersionRequested = MAKEWORD(1,1);
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WSAStartup(wVersionRequested, &wsaData);
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if (wsaData.wVersion != wVersionRequested) {
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errorString_ << "Socket: Incompatible Windows socket library version!";
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handleError( StkError::PROCESS_SOCKET );
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}
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#endif
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// Create the server-side socket
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soket_ = ::socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
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if (soket_ < 0) {
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errorString_ << "Socket: Couldn't create socket server!";
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handleError( StkError::PROCESS_SOCKET );
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}
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int flag = 1;
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int result = setsockopt( soket_, IPPROTO_TCP, TCP_NODELAY, (char *)&flag, sizeof(int) );
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if (result < 0) {
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errorString_ << "Socket: Error setting socket options!";
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handleError( StkError::PROCESS_SOCKET );
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}
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struct sockaddr_in mysocket;
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mysocket.sin_family=AF_INET;
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mysocket.sin_addr.s_addr=INADDR_ANY;
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mysocket.sin_port=htons( port );
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// Bind socket to the appropriate port and interface (INADDR_ANY)
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if ( bind(soket_, (struct sockaddr *)&mysocket, sizeof(mysocket)) < 0 ) {
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errorString_ << "Socket: Couldn't bind socket!";
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handleError( StkError::PROCESS_SOCKET );
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}
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// Listen for incoming connection(s)
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if ( listen(soket_, 1) < 0 ) {
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errorString_ << "Socket: Couldn't start server listening!";
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handleError( StkError::PROCESS_SOCKET );
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}
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}
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Socket :: Socket(int port, const char *hostname )
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{
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soket_ = -1;
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server_ = false;
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port_ = port;
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#if defined(__OS_WINDOWS__) // windoze-only stuff
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WSADATA wsaData;
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WORD wVersionRequested = MAKEWORD(1,1);
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WSAStartup(wVersionRequested, &wsaData);
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if (wsaData.wVersion != wVersionRequested) {
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errorString_ << "Socket: Incompatible Windows socket library version!";
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handleError( StkError::PROCESS_SOCKET );
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}
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#endif
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// Create a socket client connection.
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connect( port, hostname );
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port_ = -1;
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}
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Socket :: ~Socket()
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{
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#if (defined(__OS_IRIX__) || defined(__OS_LINUX__) || defined(__OS_MACOSX__))
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this->close( soket_ );
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::close( soket_ );
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#if defined(__OS_WINDOWS__)
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#elif defined(__OS_WINDOWS__)
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::closesocket( soket_ );
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WSACleanup();
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#endif
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}
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int Socket :: connect( int port, const char *hostname )
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void Socket :: close( int socket )
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{
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// This method is for client connections only!
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if ( server_ == true ) return -1;
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if ( !isValid( socket ) ) return;
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// Close an existing connection if it exists.
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if ( isValid( soket_ ) ) this->close();
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#if (defined(__OS_IRIX__) || defined(__OS_LINUX__) || defined(__OS_MACOSX__))
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// Create the client-side socket
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soket_ = ::socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
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if (soket_ < 0) {
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errorString_ << "Socket: Couldn't create socket client!";
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handleError( StkError::PROCESS_SOCKET );
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}
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::close( socket );
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int flag = 1;
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int result = setsockopt( soket_, IPPROTO_TCP, TCP_NODELAY, (char *)&flag, sizeof(int) );
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if (result < 0) {
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errorString_ << "Socket: Error setting socket options!";
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handleError( StkError::PROCESS_SOCKET );
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}
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#elif defined(__OS_WINDOWS__)
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struct hostent *hostp;
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if ( (hostp = gethostbyname(hostname)) == 0 ) {
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errorString_ << "Socket: unknown host (" << hostname << ")!";
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handleError( StkError::PROCESS_SOCKET_IPADDR );
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}
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::closesocket( socket );
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// Fill in the address structure
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struct sockaddr_in server_address;
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server_address.sin_family = AF_INET;
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memcpy((void *)&server_address.sin_addr, hostp->h_addr, hostp->h_length);
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server_address.sin_port = htons(port);
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// Connect to the server
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if ( ::connect(soket_, (struct sockaddr *)&server_address,
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sizeof(server_address) ) < 0) {
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errorString_ << "Socket: Couldn't connect to socket server!";
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handleError( StkError::PROCESS_SOCKET );
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}
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return soket_;
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#endif
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}
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int Socket :: id( void ) const
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@@ -178,14 +53,6 @@ int Socket :: port( void ) const
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return port_;
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}
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int Socket :: accept( void )
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{
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if ( server_ )
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return ::accept( soket_, NULL, NULL );
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else
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return -1;
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}
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bool Socket :: isValid( int socket )
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{
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return socket != -1;
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@@ -209,48 +76,15 @@ void Socket :: setBlocking( int socket, bool enable )
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#endif
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}
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void Socket :: close( void )
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{
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if ( !isValid( soket_ ) ) return;
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this->close( soket_ );
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soket_ = -1;
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}
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void Socket :: close( int socket )
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{
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if ( !isValid( socket ) ) return;
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#if (defined(__OS_IRIX__) || defined(__OS_LINUX__) || defined(__OS_MACOSX__))
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::close( socket );
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#elif defined(__OS_WINDOWS__)
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::closesocket( socket );
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#endif
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}
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int Socket :: writeBuffer(const void *buffer, long bufferSize, int flags )
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{
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if ( !isValid( soket_ ) ) return -1;
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return send( soket_, (const char *)buffer, bufferSize, flags );
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}
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int Socket :: writeBuffer(int socket, const void *buffer, long bufferSize, int flags )
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{
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if ( !isValid( socket ) ) return -1;
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return send( socket, (const char *)buffer, bufferSize, flags );
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}
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int Socket :: readBuffer(void *buffer, long bufferSize, int flags )
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{
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if ( !isValid( soket_ ) ) return -1;
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return recv( soket_, (char *)buffer, bufferSize, flags );
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}
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int Socket :: readBuffer(int socket, void *buffer, long bufferSize, int flags )
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{
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if ( !isValid( socket ) ) return -1;
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return recv( socket, (char *)buffer, bufferSize, flags );
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}
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