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/*
* Copyright (C) 2011 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "TcpStream.h"
#include "emugl/common/sockets.h"
#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <string.h>
#ifndef _WIN32
#include <netinet/in.h>
#include <netinet/tcp.h>
#else
#include <ws2tcpip.h>
#endif
#define LISTEN_BACKLOG 4
TcpStream::TcpStream(size_t bufSize) : SocketStream(bufSize) {}
TcpStream::TcpStream(int sock, size_t bufSize) :
SocketStream(sock, bufSize) {
// disable Nagle algorithm to improve bandwidth of small
// packets which are quite common in our implementation.
emugl::socketTcpDisableNagle(sock);
}
int TcpStream::listen(char addrstr[MAX_ADDRSTR_LEN]) {
m_sock = emugl::socketTcpLoopbackServer(0, SOCK_STREAM);
if (!valid())
return int(ERR_INVALID_SOCKET);
int port = emugl::socketGetPort(m_sock);
if (port < 0) {
::close(m_sock);
return int(ERR_INVALID_SOCKET);
}
snprintf(addrstr, MAX_ADDRSTR_LEN - 1, "%hu", port);
addrstr[MAX_ADDRSTR_LEN-1] = '\0';
return 0;
}
SocketStream * TcpStream::accept() {
int clientSock = emugl::socketAccept(m_sock);
if (clientSock < 0)
return NULL;
return new TcpStream(clientSock, m_bufsize);
}
int TcpStream::connect(const char* addr) {
int port = atoi(addr);
m_sock = emugl::socketTcpLoopbackClient(port, SOCK_STREAM);
return valid() ? 0 : -1;
}
int TcpStream::connect(const char* hostname, unsigned short port)
{
m_sock = emugl::socketTcpClient(hostname, port, SOCK_STREAM);
return valid() ? 0 : -1;
}
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