| /* |
| * |
| * 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/windows/WinSocket.h" |
| |
| #include "qpid/sys/SocketAddress.h" |
| #include "qpid/sys/windows/check.h" |
| #include "qpid/sys/windows/IoHandlePrivate.h" |
| #include "qpid/sys/SystemInfo.h" |
| |
| namespace qpid { |
| namespace sys { |
| |
| // 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() { |
| if (SystemInfo::threadSafeShutdown()) |
| WSACleanup(); |
| } |
| |
| public: |
| int error(void) const { return err; } |
| |
| protected: |
| DWORD err; |
| }; |
| |
| static WinSockSetup setup; |
| |
| std::string getName(SOCKET fd, bool local) |
| { |
| ::sockaddr_storage name_s; // big enough for any socket address |
| ::sockaddr* name = (::sockaddr*)&name_s; |
| ::socklen_t namelen = sizeof(name_s); |
| |
| if (local) { |
| QPID_WINSOCK_CHECK(::getsockname(fd, name, &namelen)); |
| } else { |
| QPID_WINSOCK_CHECK(::getpeername(fd, name, &namelen)); |
| } |
| |
| return SocketAddress::asString(name, namelen); |
| } |
| |
| uint16_t getLocalPort(int fd) |
| { |
| ::sockaddr_storage name_s; // big enough for any socket address |
| ::sockaddr* name = (::sockaddr*)&name_s; |
| ::socklen_t namelen = sizeof(name_s); |
| |
| QPID_WINSOCK_CHECK(::getsockname(fd, name, &namelen)); |
| |
| return SocketAddress::getPort(name); |
| } |
| } // namespace |
| |
| WinSocket::WinSocket() : |
| handle(new IOHandle), |
| nonblocking(false), |
| nodelay(false) |
| {} |
| |
| Socket* createSocket() |
| { |
| return new WinSocket; |
| } |
| |
| WinSocket::WinSocket(SOCKET fd) : |
| handle(new IOHandle(fd)), |
| nonblocking(false), |
| nodelay(false) |
| {} |
| |
| WinSocket::operator const IOHandle&() const |
| { |
| return *handle; |
| } |
| |
| void WinSocket::createSocket(const SocketAddress& sa) const |
| { |
| SOCKET& socket = handle->fd; |
| if (socket != INVALID_SOCKET) WinSocket::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 WinSocket::setNonblocking() const { |
| u_long nonblock = 1; |
| QPID_WINSOCK_CHECK(ioctlsocket(handle->fd, FIONBIO, &nonblock)); |
| } |
| |
| void |
| WinSocket::connect(const SocketAddress& addr) const |
| { |
| peername = addr.asString(false); |
| |
| createSocket(addr); |
| |
| const SOCKET& socket = handle->fd; |
| int err; |
| WSASetLastError(0); |
| if ((::connect(socket, getAddrInfo(addr).ai_addr, getAddrInfo(addr).ai_addrlen) != 0) && |
| ((err = ::WSAGetLastError()) != WSAEWOULDBLOCK)) |
| throw qpid::Exception(QPID_MSG(strError(err) << ": " << peername)); |
| } |
| |
| void |
| WinSocket::finishConnect(const SocketAddress&) const |
| { |
| } |
| |
| void |
| WinSocket::close() const |
| { |
| SOCKET& socket = handle->fd; |
| if (socket == INVALID_SOCKET) return; |
| QPID_WINSOCK_CHECK(closesocket(socket)); |
| socket = INVALID_SOCKET; |
| } |
| |
| |
| int WinSocket::write(const void *buf, size_t count) const |
| { |
| const SOCKET& socket = handle->fd; |
| int sent = ::send(socket, (const char *)buf, count, 0); |
| if (sent == SOCKET_ERROR) |
| return -1; |
| return sent; |
| } |
| |
| int WinSocket::read(void *buf, size_t count) const |
| { |
| const SOCKET& socket = handle->fd; |
| int received = ::recv(socket, (char *)buf, count, 0); |
| if (received == SOCKET_ERROR) |
| return -1; |
| return received; |
| } |
| |
| int WinSocket::listen(const SocketAddress& addr, int backlog) const |
| { |
| createSocket(addr); |
| |
| const SOCKET& socket = handle->fd; |
| BOOL yes=1; |
| QPID_WINSOCK_CHECK(setsockopt(socket, SOL_SOCKET, SO_REUSEADDR, (char *)&yes, sizeof(yes))); |
| |
| if (::bind(socket, getAddrInfo(addr).ai_addr, getAddrInfo(addr).ai_addrlen) == SOCKET_ERROR) |
| throw Exception(QPID_MSG("Can't bind to " << addr.asString() << ": " << strError(WSAGetLastError()))); |
| if (::listen(socket, backlog) == SOCKET_ERROR) |
| throw Exception(QPID_MSG("Can't listen on " <<addr.asString() << ": " << strError(WSAGetLastError()))); |
| |
| return getLocalPort(socket); |
| } |
| |
| Socket* WinSocket::accept() const |
| { |
| SOCKET afd = ::accept(handle->fd, 0, 0); |
| if (afd != INVALID_SOCKET) |
| return new WinSocket(afd); |
| else if (WSAGetLastError() == EAGAIN) |
| return 0; |
| else throw QPID_WINDOWS_ERROR(WSAGetLastError()); |
| } |
| |
| std::string WinSocket::getPeerAddress() const |
| { |
| if (peername.empty()) { |
| peername = getName(handle->fd, false); |
| } |
| return peername; |
| } |
| |
| std::string WinSocket::getLocalAddress() const |
| { |
| if (localname.empty()) { |
| localname = getName(handle->fd, true); |
| } |
| return localname; |
| } |
| |
| int WinSocket::getError() const |
| { |
| int result; |
| socklen_t rSize = sizeof (result); |
| |
| QPID_WINSOCK_CHECK(::getsockopt(handle->fd, SOL_SOCKET, SO_ERROR, (char *)&result, &rSize)); |
| return result; |
| } |
| |
| void WinSocket::setTcpNoDelay() const |
| { |
| SOCKET& socket = handle->fd; |
| nodelay = true; |
| if (socket != INVALID_SOCKET) { |
| int flag = 1; |
| int result = setsockopt(handle->fd, |
| IPPROTO_TCP, |
| TCP_NODELAY, |
| (char *)&flag, |
| sizeof(flag)); |
| QPID_WINSOCK_CHECK(result); |
| } |
| } |
| |
| int WinSocket::getKeyLen() const |
| { |
| return 0; |
| } |
| |
| std::string WinSocket::getClientAuthId() const |
| { |
| return std::string(); |
| } |
| |
| }} // namespace qpid::sys |