diff options
Diffstat (limited to 'trunk/qpid/cpp/src/qpid/sys/windows/Socket.cpp')
| -rwxr-xr-x | trunk/qpid/cpp/src/qpid/sys/windows/Socket.cpp | 343 |
1 files changed, 343 insertions, 0 deletions
diff --git a/trunk/qpid/cpp/src/qpid/sys/windows/Socket.cpp b/trunk/qpid/cpp/src/qpid/sys/windows/Socket.cpp new file mode 100755 index 0000000000..11fb8b4133 --- /dev/null +++ b/trunk/qpid/cpp/src/qpid/sys/windows/Socket.cpp @@ -0,0 +1,343 @@ +/* + * + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you 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 "qpid/sys/Socket.h" +#include "qpid/sys/SocketAddress.h" +#include "qpid/sys/windows/IoHandlePrivate.h" +#include "qpid/sys/windows/check.h" +#include "qpid/sys/Time.h" + +#include <cstdlib> +#include <string.h> + +#include <winsock2.h> + +#include <boost/format.hpp> +#include <boost/lexical_cast.hpp> + +// Need to initialize WinSock. Ideally, this would be a singleton or embedded +// in some one-time initialization function. I tried boost singleton and could +// not get it to compile (and others located in google had the same problem). +// So, this simple static with an interlocked increment will do for known +// use cases at this time. Since this will only shut down winsock at process +// termination, there may be some problems with client programs that also +// expect to load and unload winsock, but we'll see... +// If someone does get an easy-to-use singleton sometime, converting to it +// may be preferable. + +namespace { + +static LONG volatile initialized = 0; + +class WinSockSetup { + // : public boost::details::pool::singleton_default<WinSockSetup> { + +public: + WinSockSetup() { + LONG timesEntered = InterlockedIncrement(&initialized); + if (timesEntered > 1) + return; + err = 0; + WORD wVersionRequested; + WSADATA wsaData; + + /* Request WinSock 2.2 */ + wVersionRequested = MAKEWORD(2, 2); + err = WSAStartup(wVersionRequested, &wsaData); + } + + ~WinSockSetup() { + WSACleanup(); + } + +public: + int error(void) const { return err; } + +protected: + DWORD err; +}; + +static WinSockSetup setup; + +} /* namespace */ + +namespace qpid { +namespace sys { + +namespace { + +std::string getName(SOCKET fd, bool local, bool includeService = false) +{ + sockaddr_in name; // big enough for any socket address + socklen_t namelen = sizeof(name); + if (local) { + QPID_WINSOCK_CHECK(::getsockname(fd, (sockaddr*)&name, &namelen)); + } else { + QPID_WINSOCK_CHECK(::getpeername(fd, (sockaddr*)&name, &namelen)); + } + + char servName[NI_MAXSERV]; + char dispName[NI_MAXHOST]; + if (includeService) { + if (int rc = ::getnameinfo((sockaddr*)&name, namelen, + dispName, sizeof(dispName), + servName, sizeof(servName), + NI_NUMERICHOST | NI_NUMERICSERV) != 0) + throw qpid::Exception(QPID_MSG(gai_strerror(rc))); + return std::string(dispName) + ":" + std::string(servName); + } else { + if (int rc = ::getnameinfo((sockaddr*)&name, namelen, + dispName, sizeof(dispName), + 0, 0, + NI_NUMERICHOST) != 0) + throw qpid::Exception(QPID_MSG(gai_strerror(rc))); + return dispName; + } +} + +std::string getService(SOCKET fd, bool local) +{ + sockaddr_in name; // big enough for any socket address + socklen_t namelen = sizeof(name); + + if (local) { + QPID_WINSOCK_CHECK(::getsockname(fd, (sockaddr*)&name, &namelen)); + } else { + QPID_WINSOCK_CHECK(::getpeername(fd, (sockaddr*)&name, &namelen)); + } + + char servName[NI_MAXSERV]; + if (int rc = ::getnameinfo((sockaddr*)&name, namelen, + 0, 0, + servName, sizeof(servName), + NI_NUMERICHOST | NI_NUMERICSERV) != 0) + throw qpid::Exception(QPID_MSG(gai_strerror(rc))); + return servName; +} +} // namespace + +Socket::Socket() : + IOHandle(new IOHandlePrivate), + nonblocking(false), + nodelay(false) +{ + SOCKET& socket = impl->fd; + if (socket != INVALID_SOCKET) Socket::close(); + SOCKET s = ::socket (PF_INET, SOCK_STREAM, 0); + if (s == INVALID_SOCKET) throw QPID_WINDOWS_ERROR(WSAGetLastError()); + socket = s; +} + +Socket::Socket(IOHandlePrivate* h) : + IOHandle(h), + nonblocking(false), + nodelay(false) +{} + +void +Socket::createSocket(const SocketAddress& sa) const +{ + SOCKET& socket = impl->fd; + if (socket != INVALID_SOCKET) Socket::close(); + + SOCKET s = ::socket (getAddrInfo(sa).ai_family, + getAddrInfo(sa).ai_socktype, + 0); + if (s == INVALID_SOCKET) throw QPID_WINDOWS_ERROR(WSAGetLastError()); + socket = s; + + try { + if (nonblocking) setNonblocking(); + if (nodelay) setTcpNoDelay(); + } catch (std::exception&) { + closesocket(s); + socket = INVALID_SOCKET; + throw; + } +} + +void Socket::setTimeout(const Duration& interval) const +{ + const SOCKET& socket = impl->fd; + int64_t nanosecs = interval; + nanosecs /= (1000 * 1000); // nsecs -> usec -> msec + int msec = 0; + if (nanosecs > std::numeric_limits<int>::max()) + msec = std::numeric_limits<int>::max(); + else + msec = static_cast<int>(nanosecs); + setsockopt(socket, SOL_SOCKET, SO_SNDTIMEO, (char *)&msec, sizeof(msec)); + setsockopt(socket, SOL_SOCKET, SO_RCVTIMEO, (char *)&msec, sizeof(msec)); +} + +void Socket::setNonblocking() const { + u_long nonblock = 1; + QPID_WINSOCK_CHECK(ioctlsocket(impl->fd, FIONBIO, &nonblock)); +} + +void Socket::connect(const std::string& host, uint16_t port) const +{ + SocketAddress sa(host, boost::lexical_cast<std::string>(port)); + connect(sa); +} + +void +Socket::connect(const SocketAddress& addr) const +{ + const SOCKET& socket = impl->fd; + const addrinfo *addrs = &(getAddrInfo(addr)); + int error = 0; + WSASetLastError(0); + while (addrs != 0) { + if ((::connect(socket, addrs->ai_addr, addrs->ai_addrlen) == 0) || + (WSAGetLastError() == WSAEWOULDBLOCK)) + break; + // Error... save this error code and see if there are other address + // to try before throwing the exception. + error = WSAGetLastError(); + addrs = addrs->ai_next; + } + if (error) + throw qpid::Exception(QPID_MSG(strError(error) << ": " << connectname)); +} + +void +Socket::close() const +{ + SOCKET& socket = impl->fd; + if (socket == INVALID_SOCKET) return; + QPID_WINSOCK_CHECK(closesocket(socket)); + socket = INVALID_SOCKET; +} + + +int Socket::write(const void *buf, size_t count) const +{ + const SOCKET& socket = impl->fd; + int sent = ::send(socket, (const char *)buf, count, 0); + if (sent == SOCKET_ERROR) + return -1; + return sent; +} + +int Socket::read(void *buf, size_t count) const +{ + const SOCKET& socket = impl->fd; + int received = ::recv(socket, (char *)buf, count, 0); + if (received == SOCKET_ERROR) + return -1; + return received; +} + +int Socket::listen(uint16_t port, int backlog) const +{ + const SOCKET& socket = impl->fd; + BOOL yes=1; + QPID_WINSOCK_CHECK(setsockopt(socket, SOL_SOCKET, SO_REUSEADDR, (char *)&yes, sizeof(yes))); + struct sockaddr_in name; + memset(&name, 0, sizeof(name)); + name.sin_family = AF_INET; + name.sin_port = htons(port); + name.sin_addr.s_addr = 0; + if (::bind(socket, (struct sockaddr*)&name, sizeof(name)) == SOCKET_ERROR) + throw Exception(QPID_MSG("Can't bind to port " << port << ": " << strError(WSAGetLastError()))); + if (::listen(socket, backlog) == SOCKET_ERROR) + throw Exception(QPID_MSG("Can't listen on port " << port << ": " << strError(WSAGetLastError()))); + + socklen_t namelen = sizeof(name); + QPID_WINSOCK_CHECK(::getsockname(socket, (struct sockaddr*)&name, &namelen)); + return ntohs(name.sin_port); +} + +Socket* Socket::accept() const +{ + SOCKET afd = ::accept(impl->fd, 0, 0); + if (afd != INVALID_SOCKET) + return new Socket(new IOHandlePrivate(afd)); + else if (WSAGetLastError() == EAGAIN) + return 0; + else throw QPID_WINDOWS_ERROR(WSAGetLastError()); +} + +std::string Socket::getSockname() const +{ + return getName(impl->fd, true); +} + +std::string Socket::getPeername() const +{ + return getName(impl->fd, false); +} + +std::string Socket::getPeerAddress() const +{ + if (!connectname.empty()) + return std::string (connectname); + return getName(impl->fd, false, true); +} + +std::string Socket::getLocalAddress() const +{ + return getName(impl->fd, true, true); +} + +uint16_t Socket::getLocalPort() const +{ + return atoi(getService(impl->fd, true).c_str()); +} + +uint16_t Socket::getRemotePort() const +{ + return atoi(getService(impl->fd, true).c_str()); +} + +int Socket::getError() const +{ + int result; + socklen_t rSize = sizeof (result); + + QPID_WINSOCK_CHECK(::getsockopt(impl->fd, SOL_SOCKET, SO_ERROR, (char *)&result, &rSize)); + return result; +} + +void Socket::setTcpNoDelay() const +{ + int flag = 1; + int result = setsockopt(impl->fd, + IPPROTO_TCP, + TCP_NODELAY, + (char *)&flag, + sizeof(flag)); + QPID_WINSOCK_CHECK(result); + nodelay = true; +} + +inline IOHandlePrivate* IOHandlePrivate::getImpl(const qpid::sys::IOHandle &h) +{ + return h.impl; +} + +SOCKET toSocketHandle(const Socket& s) +{ + return IOHandlePrivate::getImpl(s)->fd; +} + +}} // namespace qpid::sys |