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Diffstat (limited to 'cpp/src/qpid/sys/windows/WinSocket.cpp')
| -rw-r--r-- | cpp/src/qpid/sys/windows/WinSocket.cpp | 276 |
1 files changed, 276 insertions, 0 deletions
diff --git a/cpp/src/qpid/sys/windows/WinSocket.cpp b/cpp/src/qpid/sys/windows/WinSocket.cpp new file mode 100644 index 0000000000..b2d2d79c63 --- /dev/null +++ b/cpp/src/qpid/sys/windows/WinSocket.cpp @@ -0,0 +1,276 @@ +/* + * + * 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 |