863 lines
23 KiB
C++
863 lines
23 KiB
C++
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/*
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* Copyright 2004 The WebRTC Project Authors. All rights reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#include "webrtc/base/win32socketserver.h"
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#include <algorithm>
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#include <ws2tcpip.h> // NOLINT
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#include "webrtc/base/byteorder.h"
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#include "webrtc/base/common.h"
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#include "webrtc/base/logging.h"
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#include "webrtc/base/win32window.h"
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#include "webrtc/base/winping.h"
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namespace rtc {
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///////////////////////////////////////////////////////////////////////////////
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// Win32Socket
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///////////////////////////////////////////////////////////////////////////////
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// TODO: Move this to a common place where PhysicalSocketServer can
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// share it.
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// Standard MTUs
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static const uint16_t PACKET_MAXIMUMS[] = {
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65535, // Theoretical maximum, Hyperchannel
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32000, // Nothing
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17914, // 16Mb IBM Token Ring
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8166, // IEEE 802.4
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// 4464 // IEEE 802.5 (4Mb max)
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4352, // FDDI
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// 2048, // Wideband Network
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2002, // IEEE 802.5 (4Mb recommended)
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// 1536, // Expermental Ethernet Networks
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// 1500, // Ethernet, Point-to-Point (default)
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1492, // IEEE 802.3
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1006, // SLIP, ARPANET
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// 576, // X.25 Networks
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// 544, // DEC IP Portal
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// 512, // NETBIOS
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508, // IEEE 802/Source-Rt Bridge, ARCNET
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296, // Point-to-Point (low delay)
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68, // Official minimum
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0, // End of list marker
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};
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static const int IP_HEADER_SIZE = 20u;
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static const int ICMP_HEADER_SIZE = 8u;
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static const int ICMP_PING_TIMEOUT_MILLIS = 10000u;
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// TODO: Enable for production builds also? Use FormatMessage?
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#if !defined(NDEBUG)
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LPCSTR WSAErrorToString(int error, LPCSTR *description_result) {
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LPCSTR string = "Unspecified";
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LPCSTR description = "Unspecified description";
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switch (error) {
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case ERROR_SUCCESS:
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string = "SUCCESS";
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description = "Operation succeeded";
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break;
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case WSAEWOULDBLOCK:
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string = "WSAEWOULDBLOCK";
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description = "Using a non-blocking socket, will notify later";
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break;
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case WSAEACCES:
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string = "WSAEACCES";
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description = "Access denied, or sharing violation";
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break;
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case WSAEADDRNOTAVAIL:
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string = "WSAEADDRNOTAVAIL";
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description = "Address is not valid in this context";
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break;
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case WSAENETDOWN:
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string = "WSAENETDOWN";
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description = "Network is down";
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break;
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case WSAENETUNREACH:
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string = "WSAENETUNREACH";
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description = "Network is up, but unreachable";
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break;
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case WSAENETRESET:
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string = "WSANETRESET";
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description = "Connection has been reset due to keep-alive activity";
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break;
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case WSAECONNABORTED:
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string = "WSAECONNABORTED";
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description = "Aborted by host";
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break;
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case WSAECONNRESET:
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string = "WSAECONNRESET";
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description = "Connection reset by host";
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break;
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case WSAETIMEDOUT:
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string = "WSAETIMEDOUT";
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description = "Timed out, host failed to respond";
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break;
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case WSAECONNREFUSED:
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string = "WSAECONNREFUSED";
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description = "Host actively refused connection";
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break;
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case WSAEHOSTDOWN:
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string = "WSAEHOSTDOWN";
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description = "Host is down";
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break;
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case WSAEHOSTUNREACH:
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string = "WSAEHOSTUNREACH";
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description = "Host is unreachable";
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break;
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case WSAHOST_NOT_FOUND:
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string = "WSAHOST_NOT_FOUND";
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description = "No such host is known";
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break;
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}
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if (description_result) {
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*description_result = description;
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}
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return string;
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}
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void ReportWSAError(LPCSTR context, int error, const SocketAddress& address) {
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LPCSTR description_string;
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LPCSTR error_string = WSAErrorToString(error, &description_string);
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LOG(LS_INFO) << context << " = " << error
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<< " (" << error_string << ":" << description_string << ") ["
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<< address.ToString() << "]";
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}
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#else
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void ReportWSAError(LPCSTR context, int error, const SocketAddress& address) {}
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#endif
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/////////////////////////////////////////////////////////////////////////////
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// Win32Socket::EventSink
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/////////////////////////////////////////////////////////////////////////////
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#define WM_SOCKETNOTIFY (WM_USER + 50)
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#define WM_DNSNOTIFY (WM_USER + 51)
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struct Win32Socket::DnsLookup {
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HANDLE handle;
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uint16_t port;
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char buffer[MAXGETHOSTSTRUCT];
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};
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class Win32Socket::EventSink : public Win32Window {
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public:
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explicit EventSink(Win32Socket * parent) : parent_(parent) { }
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void Dispose();
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virtual bool OnMessage(UINT uMsg, WPARAM wParam, LPARAM lParam,
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LRESULT& result);
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virtual void OnNcDestroy();
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private:
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bool OnSocketNotify(UINT uMsg, WPARAM wParam, LPARAM lParam, LRESULT& result);
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bool OnDnsNotify(WPARAM wParam, LPARAM lParam, LRESULT& result);
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Win32Socket * parent_;
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};
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void Win32Socket::EventSink::Dispose() {
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parent_ = NULL;
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if (::IsWindow(handle())) {
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::DestroyWindow(handle());
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} else {
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delete this;
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}
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}
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bool Win32Socket::EventSink::OnMessage(UINT uMsg, WPARAM wParam,
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LPARAM lParam, LRESULT& result) {
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switch (uMsg) {
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case WM_SOCKETNOTIFY:
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case WM_TIMER:
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return OnSocketNotify(uMsg, wParam, lParam, result);
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case WM_DNSNOTIFY:
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return OnDnsNotify(wParam, lParam, result);
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}
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return false;
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}
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bool Win32Socket::EventSink::OnSocketNotify(UINT uMsg, WPARAM wParam,
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LPARAM lParam, LRESULT& result) {
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result = 0;
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int wsa_event = WSAGETSELECTEVENT(lParam);
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int wsa_error = WSAGETSELECTERROR(lParam);
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// Treat connect timeouts as close notifications
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if (uMsg == WM_TIMER) {
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wsa_event = FD_CLOSE;
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wsa_error = WSAETIMEDOUT;
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}
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if (parent_)
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parent_->OnSocketNotify(static_cast<SOCKET>(wParam), wsa_event, wsa_error);
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return true;
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}
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bool Win32Socket::EventSink::OnDnsNotify(WPARAM wParam, LPARAM lParam,
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LRESULT& result) {
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result = 0;
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int error = WSAGETASYNCERROR(lParam);
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if (parent_)
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parent_->OnDnsNotify(reinterpret_cast<HANDLE>(wParam), error);
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return true;
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}
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void Win32Socket::EventSink::OnNcDestroy() {
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if (parent_) {
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LOG(LS_ERROR) << "EventSink hwnd is being destroyed, but the event sink"
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" hasn't yet been disposed.";
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} else {
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delete this;
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}
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}
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/////////////////////////////////////////////////////////////////////////////
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// Win32Socket
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/////////////////////////////////////////////////////////////////////////////
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Win32Socket::Win32Socket()
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: socket_(INVALID_SOCKET), error_(0), state_(CS_CLOSED), connect_time_(0),
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closing_(false), close_error_(0), sink_(NULL), dns_(NULL) {
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}
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Win32Socket::~Win32Socket() {
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Close();
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}
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bool Win32Socket::CreateT(int family, int type) {
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Close();
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int proto = (SOCK_DGRAM == type) ? IPPROTO_UDP : IPPROTO_TCP;
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socket_ = ::WSASocket(family, type, proto, NULL, NULL, 0);
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if (socket_ == INVALID_SOCKET) {
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UpdateLastError();
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return false;
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}
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if ((SOCK_DGRAM == type) && !SetAsync(FD_READ | FD_WRITE)) {
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return false;
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}
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return true;
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}
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int Win32Socket::Attach(SOCKET s) {
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ASSERT(socket_ == INVALID_SOCKET);
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if (socket_ != INVALID_SOCKET)
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return SOCKET_ERROR;
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ASSERT(s != INVALID_SOCKET);
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if (s == INVALID_SOCKET)
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return SOCKET_ERROR;
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socket_ = s;
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state_ = CS_CONNECTED;
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if (!SetAsync(FD_READ | FD_WRITE | FD_CLOSE))
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return SOCKET_ERROR;
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return 0;
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}
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void Win32Socket::SetTimeout(int ms) {
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if (sink_)
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::SetTimer(sink_->handle(), 1, ms, 0);
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}
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SocketAddress Win32Socket::GetLocalAddress() const {
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sockaddr_storage addr = {0};
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socklen_t addrlen = sizeof(addr);
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int result = ::getsockname(socket_, reinterpret_cast<sockaddr*>(&addr),
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&addrlen);
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SocketAddress address;
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if (result >= 0) {
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SocketAddressFromSockAddrStorage(addr, &address);
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} else {
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LOG(LS_WARNING) << "GetLocalAddress: unable to get local addr, socket="
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<< socket_;
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}
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return address;
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}
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SocketAddress Win32Socket::GetRemoteAddress() const {
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sockaddr_storage addr = {0};
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socklen_t addrlen = sizeof(addr);
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int result = ::getpeername(socket_, reinterpret_cast<sockaddr*>(&addr),
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&addrlen);
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SocketAddress address;
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if (result >= 0) {
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SocketAddressFromSockAddrStorage(addr, &address);
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} else {
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LOG(LS_WARNING) << "GetRemoteAddress: unable to get remote addr, socket="
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<< socket_;
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}
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return address;
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}
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int Win32Socket::Bind(const SocketAddress& addr) {
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ASSERT(socket_ != INVALID_SOCKET);
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if (socket_ == INVALID_SOCKET)
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return SOCKET_ERROR;
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sockaddr_storage saddr;
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size_t len = addr.ToSockAddrStorage(&saddr);
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int err = ::bind(socket_,
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reinterpret_cast<sockaddr*>(&saddr),
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static_cast<int>(len));
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UpdateLastError();
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return err;
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}
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int Win32Socket::Connect(const SocketAddress& addr) {
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if (state_ != CS_CLOSED) {
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SetError(EALREADY);
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return SOCKET_ERROR;
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}
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if (!addr.IsUnresolvedIP()) {
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return DoConnect(addr);
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}
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LOG_F(LS_INFO) << "async dns lookup (" << addr.hostname() << ")";
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DnsLookup * dns = new DnsLookup;
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if (!sink_) {
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// Explicitly create the sink ourselves here; we can't rely on SetAsync
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// because we don't have a socket_ yet.
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CreateSink();
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}
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// TODO: Replace with IPv6 compatible lookup.
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dns->handle = WSAAsyncGetHostByName(sink_->handle(), WM_DNSNOTIFY,
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addr.hostname().c_str(), dns->buffer,
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sizeof(dns->buffer));
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if (!dns->handle) {
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LOG_F(LS_ERROR) << "WSAAsyncGetHostByName error: " << WSAGetLastError();
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delete dns;
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UpdateLastError();
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Close();
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return SOCKET_ERROR;
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}
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dns->port = addr.port();
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dns_ = dns;
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state_ = CS_CONNECTING;
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return 0;
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}
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int Win32Socket::DoConnect(const SocketAddress& addr) {
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if ((socket_ == INVALID_SOCKET) && !CreateT(addr.family(), SOCK_STREAM)) {
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return SOCKET_ERROR;
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}
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if (!SetAsync(FD_READ | FD_WRITE | FD_CONNECT | FD_CLOSE)) {
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return SOCKET_ERROR;
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}
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sockaddr_storage saddr = {0};
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size_t len = addr.ToSockAddrStorage(&saddr);
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connect_time_ = Time();
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int result = connect(socket_,
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reinterpret_cast<SOCKADDR*>(&saddr),
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static_cast<int>(len));
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if (result != SOCKET_ERROR) {
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state_ = CS_CONNECTED;
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} else {
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int code = WSAGetLastError();
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if (code == WSAEWOULDBLOCK) {
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state_ = CS_CONNECTING;
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} else {
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ReportWSAError("WSAAsync:connect", code, addr);
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error_ = code;
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Close();
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return SOCKET_ERROR;
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}
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}
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addr_ = addr;
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return 0;
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}
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||
|
|
int Win32Socket::GetError() const {
|
||
|
|
return error_;
|
||
|
|
}
|
||
|
|
|
||
|
|
void Win32Socket::SetError(int error) {
|
||
|
|
error_ = error;
|
||
|
|
}
|
||
|
|
|
||
|
|
Socket::ConnState Win32Socket::GetState() const {
|
||
|
|
return state_;
|
||
|
|
}
|
||
|
|
|
||
|
|
int Win32Socket::GetOption(Option opt, int* value) {
|
||
|
|
int slevel;
|
||
|
|
int sopt;
|
||
|
|
if (TranslateOption(opt, &slevel, &sopt) == -1)
|
||
|
|
return -1;
|
||
|
|
|
||
|
|
char* p = reinterpret_cast<char*>(value);
|
||
|
|
int optlen = sizeof(value);
|
||
|
|
return ::getsockopt(socket_, slevel, sopt, p, &optlen);
|
||
|
|
}
|
||
|
|
|
||
|
|
int Win32Socket::SetOption(Option opt, int value) {
|
||
|
|
int slevel;
|
||
|
|
int sopt;
|
||
|
|
if (TranslateOption(opt, &slevel, &sopt) == -1)
|
||
|
|
return -1;
|
||
|
|
|
||
|
|
const char* p = reinterpret_cast<const char*>(&value);
|
||
|
|
return ::setsockopt(socket_, slevel, sopt, p, sizeof(value));
|
||
|
|
}
|
||
|
|
|
||
|
|
int Win32Socket::Send(const void* buffer, size_t length) {
|
||
|
|
int sent = ::send(socket_,
|
||
|
|
reinterpret_cast<const char*>(buffer),
|
||
|
|
static_cast<int>(length),
|
||
|
|
0);
|
||
|
|
UpdateLastError();
|
||
|
|
return sent;
|
||
|
|
}
|
||
|
|
|
||
|
|
int Win32Socket::SendTo(const void* buffer, size_t length,
|
||
|
|
const SocketAddress& addr) {
|
||
|
|
sockaddr_storage saddr;
|
||
|
|
size_t addr_len = addr.ToSockAddrStorage(&saddr);
|
||
|
|
int sent = ::sendto(socket_, reinterpret_cast<const char*>(buffer),
|
||
|
|
static_cast<int>(length), 0,
|
||
|
|
reinterpret_cast<sockaddr*>(&saddr),
|
||
|
|
static_cast<int>(addr_len));
|
||
|
|
UpdateLastError();
|
||
|
|
return sent;
|
||
|
|
}
|
||
|
|
|
||
|
|
int Win32Socket::Recv(void* buffer, size_t length, int64_t* timestamp) {
|
||
|
|
if (timestamp) {
|
||
|
|
*timestamp = -1;
|
||
|
|
}
|
||
|
|
int received = ::recv(socket_, static_cast<char*>(buffer),
|
||
|
|
static_cast<int>(length), 0);
|
||
|
|
UpdateLastError();
|
||
|
|
if (closing_ && received <= static_cast<int>(length))
|
||
|
|
PostClosed();
|
||
|
|
return received;
|
||
|
|
}
|
||
|
|
|
||
|
|
int Win32Socket::RecvFrom(void* buffer,
|
||
|
|
size_t length,
|
||
|
|
SocketAddress* out_addr,
|
||
|
|
int64_t* timestamp) {
|
||
|
|
if (timestamp) {
|
||
|
|
*timestamp = -1;
|
||
|
|
}
|
||
|
|
sockaddr_storage saddr;
|
||
|
|
socklen_t addr_len = sizeof(saddr);
|
||
|
|
int received = ::recvfrom(socket_, static_cast<char*>(buffer),
|
||
|
|
static_cast<int>(length), 0,
|
||
|
|
reinterpret_cast<sockaddr*>(&saddr), &addr_len);
|
||
|
|
UpdateLastError();
|
||
|
|
if (received != SOCKET_ERROR)
|
||
|
|
SocketAddressFromSockAddrStorage(saddr, out_addr);
|
||
|
|
if (closing_ && received <= static_cast<int>(length))
|
||
|
|
PostClosed();
|
||
|
|
return received;
|
||
|
|
}
|
||
|
|
|
||
|
|
int Win32Socket::Listen(int backlog) {
|
||
|
|
int err = ::listen(socket_, backlog);
|
||
|
|
if (!SetAsync(FD_ACCEPT))
|
||
|
|
return SOCKET_ERROR;
|
||
|
|
|
||
|
|
UpdateLastError();
|
||
|
|
if (err == 0)
|
||
|
|
state_ = CS_CONNECTING;
|
||
|
|
return err;
|
||
|
|
}
|
||
|
|
|
||
|
|
Win32Socket* Win32Socket::Accept(SocketAddress* out_addr) {
|
||
|
|
sockaddr_storage saddr;
|
||
|
|
socklen_t addr_len = sizeof(saddr);
|
||
|
|
SOCKET s = ::accept(socket_, reinterpret_cast<sockaddr*>(&saddr), &addr_len);
|
||
|
|
UpdateLastError();
|
||
|
|
if (s == INVALID_SOCKET)
|
||
|
|
return NULL;
|
||
|
|
if (out_addr)
|
||
|
|
SocketAddressFromSockAddrStorage(saddr, out_addr);
|
||
|
|
Win32Socket* socket = new Win32Socket;
|
||
|
|
if (0 == socket->Attach(s))
|
||
|
|
return socket;
|
||
|
|
delete socket;
|
||
|
|
return NULL;
|
||
|
|
}
|
||
|
|
|
||
|
|
int Win32Socket::Close() {
|
||
|
|
int err = 0;
|
||
|
|
if (socket_ != INVALID_SOCKET) {
|
||
|
|
err = ::closesocket(socket_);
|
||
|
|
socket_ = INVALID_SOCKET;
|
||
|
|
closing_ = false;
|
||
|
|
close_error_ = 0;
|
||
|
|
UpdateLastError();
|
||
|
|
}
|
||
|
|
if (dns_) {
|
||
|
|
WSACancelAsyncRequest(dns_->handle);
|
||
|
|
delete dns_;
|
||
|
|
dns_ = NULL;
|
||
|
|
}
|
||
|
|
if (sink_) {
|
||
|
|
sink_->Dispose();
|
||
|
|
sink_ = NULL;
|
||
|
|
}
|
||
|
|
addr_.Clear();
|
||
|
|
state_ = CS_CLOSED;
|
||
|
|
return err;
|
||
|
|
}
|
||
|
|
|
||
|
|
int Win32Socket::EstimateMTU(uint16_t* mtu) {
|
||
|
|
SocketAddress addr = GetRemoteAddress();
|
||
|
|
if (addr.IsAnyIP()) {
|
||
|
|
error_ = ENOTCONN;
|
||
|
|
return -1;
|
||
|
|
}
|
||
|
|
|
||
|
|
WinPing ping;
|
||
|
|
if (!ping.IsValid()) {
|
||
|
|
error_ = EINVAL; // can't think of a better error ID
|
||
|
|
return -1;
|
||
|
|
}
|
||
|
|
|
||
|
|
for (int level = 0; PACKET_MAXIMUMS[level + 1] > 0; ++level) {
|
||
|
|
int32_t size = PACKET_MAXIMUMS[level] - IP_HEADER_SIZE - ICMP_HEADER_SIZE;
|
||
|
|
WinPing::PingResult result = ping.Ping(addr.ipaddr(), size,
|
||
|
|
ICMP_PING_TIMEOUT_MILLIS, 1, false);
|
||
|
|
if (result == WinPing::PING_FAIL) {
|
||
|
|
error_ = EINVAL; // can't think of a better error ID
|
||
|
|
return -1;
|
||
|
|
}
|
||
|
|
if (result != WinPing::PING_TOO_LARGE) {
|
||
|
|
*mtu = PACKET_MAXIMUMS[level];
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
ASSERT(false);
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
void Win32Socket::CreateSink() {
|
||
|
|
ASSERT(NULL == sink_);
|
||
|
|
|
||
|
|
// Create window
|
||
|
|
sink_ = new EventSink(this);
|
||
|
|
sink_->Create(NULL, L"EventSink", 0, 0, 0, 0, 10, 10);
|
||
|
|
}
|
||
|
|
|
||
|
|
bool Win32Socket::SetAsync(int events) {
|
||
|
|
if (NULL == sink_) {
|
||
|
|
CreateSink();
|
||
|
|
ASSERT(NULL != sink_);
|
||
|
|
}
|
||
|
|
|
||
|
|
// start the async select
|
||
|
|
if (WSAAsyncSelect(socket_, sink_->handle(), WM_SOCKETNOTIFY, events)
|
||
|
|
== SOCKET_ERROR) {
|
||
|
|
UpdateLastError();
|
||
|
|
Close();
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
|
||
|
|
bool Win32Socket::HandleClosed(int close_error) {
|
||
|
|
// WM_CLOSE will be received before all data has been read, so we need to
|
||
|
|
// hold on to it until the read buffer has been drained.
|
||
|
|
char ch;
|
||
|
|
closing_ = true;
|
||
|
|
close_error_ = close_error;
|
||
|
|
return (::recv(socket_, &ch, 1, MSG_PEEK) <= 0);
|
||
|
|
}
|
||
|
|
|
||
|
|
void Win32Socket::PostClosed() {
|
||
|
|
// If we see that the buffer is indeed drained, then send the close.
|
||
|
|
closing_ = false;
|
||
|
|
::PostMessage(sink_->handle(), WM_SOCKETNOTIFY,
|
||
|
|
socket_, WSAMAKESELECTREPLY(FD_CLOSE, close_error_));
|
||
|
|
}
|
||
|
|
|
||
|
|
void Win32Socket::UpdateLastError() {
|
||
|
|
error_ = WSAGetLastError();
|
||
|
|
}
|
||
|
|
|
||
|
|
int Win32Socket::TranslateOption(Option opt, int* slevel, int* sopt) {
|
||
|
|
switch (opt) {
|
||
|
|
case OPT_DONTFRAGMENT:
|
||
|
|
*slevel = IPPROTO_IP;
|
||
|
|
*sopt = IP_DONTFRAGMENT;
|
||
|
|
break;
|
||
|
|
case OPT_RCVBUF:
|
||
|
|
*slevel = SOL_SOCKET;
|
||
|
|
*sopt = SO_RCVBUF;
|
||
|
|
break;
|
||
|
|
case OPT_SNDBUF:
|
||
|
|
*slevel = SOL_SOCKET;
|
||
|
|
*sopt = SO_SNDBUF;
|
||
|
|
break;
|
||
|
|
case OPT_NODELAY:
|
||
|
|
*slevel = IPPROTO_TCP;
|
||
|
|
*sopt = TCP_NODELAY;
|
||
|
|
break;
|
||
|
|
case OPT_DSCP:
|
||
|
|
LOG(LS_WARNING) << "Socket::OPT_DSCP not supported.";
|
||
|
|
return -1;
|
||
|
|
default:
|
||
|
|
ASSERT(false);
|
||
|
|
return -1;
|
||
|
|
}
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
void Win32Socket::OnSocketNotify(SOCKET socket, int event, int error) {
|
||
|
|
// Ignore events if we're already closed.
|
||
|
|
if (socket != socket_)
|
||
|
|
return;
|
||
|
|
|
||
|
|
error_ = error;
|
||
|
|
switch (event) {
|
||
|
|
case FD_CONNECT:
|
||
|
|
if (error != ERROR_SUCCESS) {
|
||
|
|
ReportWSAError("WSAAsync:connect notify", error, addr_);
|
||
|
|
#if !defined(NDEBUG)
|
||
|
|
int64_t duration = TimeSince(connect_time_);
|
||
|
|
LOG(LS_INFO) << "WSAAsync:connect error (" << duration
|
||
|
|
<< " ms), faking close";
|
||
|
|
#endif
|
||
|
|
state_ = CS_CLOSED;
|
||
|
|
// If you get an error connecting, close doesn't really do anything
|
||
|
|
// and it certainly doesn't send back any close notification, but
|
||
|
|
// we really only maintain a few states, so it is easiest to get
|
||
|
|
// back into a known state by pretending that a close happened, even
|
||
|
|
// though the connect event never did occur.
|
||
|
|
SignalCloseEvent(this, error);
|
||
|
|
} else {
|
||
|
|
#if !defined(NDEBUG)
|
||
|
|
int64_t duration = TimeSince(connect_time_);
|
||
|
|
LOG(LS_INFO) << "WSAAsync:connect (" << duration << " ms)";
|
||
|
|
#endif
|
||
|
|
state_ = CS_CONNECTED;
|
||
|
|
SignalConnectEvent(this);
|
||
|
|
}
|
||
|
|
break;
|
||
|
|
|
||
|
|
case FD_ACCEPT:
|
||
|
|
case FD_READ:
|
||
|
|
if (error != ERROR_SUCCESS) {
|
||
|
|
ReportWSAError("WSAAsync:read notify", error, addr_);
|
||
|
|
} else {
|
||
|
|
SignalReadEvent(this);
|
||
|
|
}
|
||
|
|
break;
|
||
|
|
|
||
|
|
case FD_WRITE:
|
||
|
|
if (error != ERROR_SUCCESS) {
|
||
|
|
ReportWSAError("WSAAsync:write notify", error, addr_);
|
||
|
|
} else {
|
||
|
|
SignalWriteEvent(this);
|
||
|
|
}
|
||
|
|
break;
|
||
|
|
|
||
|
|
case FD_CLOSE:
|
||
|
|
if (HandleClosed(error)) {
|
||
|
|
ReportWSAError("WSAAsync:close notify", error, addr_);
|
||
|
|
state_ = CS_CLOSED;
|
||
|
|
SignalCloseEvent(this, error);
|
||
|
|
}
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
void Win32Socket::OnDnsNotify(HANDLE task, int error) {
|
||
|
|
if (!dns_ || dns_->handle != task)
|
||
|
|
return;
|
||
|
|
|
||
|
|
uint32_t ip = 0;
|
||
|
|
if (error == 0) {
|
||
|
|
hostent* pHost = reinterpret_cast<hostent*>(dns_->buffer);
|
||
|
|
uint32_t net_ip = *reinterpret_cast<uint32_t*>(pHost->h_addr_list[0]);
|
||
|
|
ip = NetworkToHost32(net_ip);
|
||
|
|
}
|
||
|
|
|
||
|
|
LOG_F(LS_INFO) << "(" << IPAddress(ip).ToSensitiveString()
|
||
|
|
<< ", " << error << ")";
|
||
|
|
|
||
|
|
if (error == 0) {
|
||
|
|
SocketAddress address(ip, dns_->port);
|
||
|
|
error = DoConnect(address);
|
||
|
|
} else {
|
||
|
|
Close();
|
||
|
|
}
|
||
|
|
|
||
|
|
if (error) {
|
||
|
|
error_ = error;
|
||
|
|
SignalCloseEvent(this, error_);
|
||
|
|
} else {
|
||
|
|
delete dns_;
|
||
|
|
dns_ = NULL;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
///////////////////////////////////////////////////////////////////////////////
|
||
|
|
// Win32SocketServer
|
||
|
|
// Provides cricket base services on top of a win32 gui thread
|
||
|
|
///////////////////////////////////////////////////////////////////////////////
|
||
|
|
|
||
|
|
static UINT s_wm_wakeup_id = 0;
|
||
|
|
const TCHAR Win32SocketServer::kWindowName[] = L"libjingle Message Window";
|
||
|
|
|
||
|
|
Win32SocketServer::Win32SocketServer(MessageQueue* message_queue)
|
||
|
|
: message_queue_(message_queue),
|
||
|
|
wnd_(this),
|
||
|
|
posted_(false),
|
||
|
|
hdlg_(NULL) {
|
||
|
|
if (s_wm_wakeup_id == 0)
|
||
|
|
s_wm_wakeup_id = RegisterWindowMessage(L"WM_WAKEUP");
|
||
|
|
if (!wnd_.Create(NULL, kWindowName, 0, 0, 0, 0, 0, 0)) {
|
||
|
|
LOG_GLE(LS_ERROR) << "Failed to create message window.";
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
Win32SocketServer::~Win32SocketServer() {
|
||
|
|
if (wnd_.handle() != NULL) {
|
||
|
|
KillTimer(wnd_.handle(), 1);
|
||
|
|
wnd_.Destroy();
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
Socket* Win32SocketServer::CreateSocket(int type) {
|
||
|
|
return CreateSocket(AF_INET, type);
|
||
|
|
}
|
||
|
|
|
||
|
|
Socket* Win32SocketServer::CreateSocket(int family, int type) {
|
||
|
|
return CreateAsyncSocket(family, type);
|
||
|
|
}
|
||
|
|
|
||
|
|
AsyncSocket* Win32SocketServer::CreateAsyncSocket(int type) {
|
||
|
|
return CreateAsyncSocket(AF_INET, type);
|
||
|
|
}
|
||
|
|
|
||
|
|
AsyncSocket* Win32SocketServer::CreateAsyncSocket(int family, int type) {
|
||
|
|
Win32Socket* socket = new Win32Socket;
|
||
|
|
if (socket->CreateT(family, type)) {
|
||
|
|
return socket;
|
||
|
|
}
|
||
|
|
delete socket;
|
||
|
|
return NULL;
|
||
|
|
}
|
||
|
|
|
||
|
|
void Win32SocketServer::SetMessageQueue(MessageQueue* queue) {
|
||
|
|
message_queue_ = queue;
|
||
|
|
}
|
||
|
|
|
||
|
|
bool Win32SocketServer::Wait(int cms, bool process_io) {
|
||
|
|
BOOL b;
|
||
|
|
if (process_io) {
|
||
|
|
// Spin the Win32 message pump at least once, and as long as requested.
|
||
|
|
// This is the Thread::ProcessMessages case.
|
||
|
|
uint32_t start = Time();
|
||
|
|
do {
|
||
|
|
MSG msg;
|
||
|
|
SetTimer(wnd_.handle(), 0, cms, NULL);
|
||
|
|
// Get the next available message. If we have a modeless dialog, give
|
||
|
|
// give the message to IsDialogMessage, which will return true if it
|
||
|
|
// was a message for the dialog that it handled internally.
|
||
|
|
// Otherwise, dispatch as usual via Translate/DispatchMessage.
|
||
|
|
b = GetMessage(&msg, NULL, 0, 0);
|
||
|
|
if (b == -1) {
|
||
|
|
LOG_GLE(LS_ERROR) << "GetMessage failed.";
|
||
|
|
return false;
|
||
|
|
} else if(b) {
|
||
|
|
if (!hdlg_ || !IsDialogMessage(hdlg_, &msg)) {
|
||
|
|
TranslateMessage(&msg);
|
||
|
|
DispatchMessage(&msg);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
KillTimer(wnd_.handle(), 0);
|
||
|
|
} while (b && TimeSince(start) < cms);
|
||
|
|
} else if (cms != 0) {
|
||
|
|
// Sit and wait forever for a WakeUp. This is the Thread::Send case.
|
||
|
|
ASSERT(cms == -1);
|
||
|
|
MSG msg;
|
||
|
|
b = GetMessage(&msg, NULL, s_wm_wakeup_id, s_wm_wakeup_id);
|
||
|
|
{
|
||
|
|
CritScope scope(&cs_);
|
||
|
|
posted_ = false;
|
||
|
|
}
|
||
|
|
} else {
|
||
|
|
// No-op (cms == 0 && !process_io). This is the Pump case.
|
||
|
|
b = TRUE;
|
||
|
|
}
|
||
|
|
return (b != FALSE);
|
||
|
|
}
|
||
|
|
|
||
|
|
void Win32SocketServer::WakeUp() {
|
||
|
|
if (wnd_.handle()) {
|
||
|
|
// Set the "message pending" flag, if not already set.
|
||
|
|
{
|
||
|
|
CritScope scope(&cs_);
|
||
|
|
if (posted_)
|
||
|
|
return;
|
||
|
|
posted_ = true;
|
||
|
|
}
|
||
|
|
|
||
|
|
PostMessage(wnd_.handle(), s_wm_wakeup_id, 0, 0);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
void Win32SocketServer::Pump() {
|
||
|
|
// Clear the "message pending" flag.
|
||
|
|
{
|
||
|
|
CritScope scope(&cs_);
|
||
|
|
posted_ = false;
|
||
|
|
}
|
||
|
|
|
||
|
|
// Dispatch all the messages that are currently in our queue. If new messages
|
||
|
|
// are posted during the dispatch, they will be handled in the next Pump.
|
||
|
|
// We use max(1, ...) to make sure we try to dispatch at least once, since
|
||
|
|
// this allow us to process "sent" messages, not included in the size() count.
|
||
|
|
Message msg;
|
||
|
|
for (size_t max_messages_to_process =
|
||
|
|
std::max<size_t>(1, message_queue_->size());
|
||
|
|
max_messages_to_process > 0 && message_queue_->Get(&msg, 0, false);
|
||
|
|
--max_messages_to_process) {
|
||
|
|
message_queue_->Dispatch(&msg);
|
||
|
|
}
|
||
|
|
|
||
|
|
// Anything remaining?
|
||
|
|
int delay = message_queue_->GetDelay();
|
||
|
|
if (delay == -1) {
|
||
|
|
KillTimer(wnd_.handle(), 1);
|
||
|
|
} else {
|
||
|
|
SetTimer(wnd_.handle(), 1, delay, NULL);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
bool Win32SocketServer::MessageWindow::OnMessage(UINT wm, WPARAM wp,
|
||
|
|
LPARAM lp, LRESULT& lr) {
|
||
|
|
bool handled = false;
|
||
|
|
if (wm == s_wm_wakeup_id || (wm == WM_TIMER && wp == 1)) {
|
||
|
|
ss_->Pump();
|
||
|
|
lr = 0;
|
||
|
|
handled = true;
|
||
|
|
}
|
||
|
|
return handled;
|
||
|
|
}
|
||
|
|
|
||
|
|
} // namespace rtc
|