Import r67258 of the wxWidgets trunk, which I expect will before

long become wxWidgets 2.9.2, which in turn is expected to be the
last 2.9 release before the 3.0 stable release.

Since the full wxWidgets distribution is rather large, I have
imported only the parts that we use, on a subdirectory basis:

art
include/wx/*.*
include/wx/aui
include/wx/cocoa
include/wx/generic
include/wx/gtk
include/wx/meta
include/wx/msw
include/wx/osx
include/wx/persist
include/wx/private
include/wx/protocol
include/wx/unix
src/aui
src/common
src/generic
src/gtk
src/msw
src/osx
src/unix


git-svn-id: https://dolphin-emu.googlecode.com/svn/trunk@7380 8ced0084-cf51-0410-be5f-012b33b47a6e

Externals/wxWidgets3/include/wx/unix/private/sockunix.h

@@ -0,0 +1,145 @@
+/////////////////////////////////////////////////////////////////////////////
+// Name:        wx/unix/private/sockunix.h
+// Purpose:     wxSocketImpl implementation for Unix systems
+// Authors:     Guilhem Lavaux, Vadim Zeitlin
+// Created:     April 1997
+// RCS-ID:      $Id: sockunix.h 65581 2010-09-21 11:56:53Z VZ $
+// Copyright:   (c) 1997 Guilhem Lavaux
+//              (c) 2008 Vadim Zeitlin
+// Licence:     wxWindows licence
+/////////////////////////////////////////////////////////////////////////////
+
+#ifndef _WX_UNIX_GSOCKUNX_H_
+#define _WX_UNIX_GSOCKUNX_H_
+
+#include <unistd.h>
+#include <sys/ioctl.h>
+
+// Under older (Open)Solaris versions FIONBIO is declared in this header only.
+// In the newer versions it's included by sys/ioctl.h but it's simpler to just
+// include it always instead of testing for whether it is or not.
+#ifdef __SOLARIS__
+    #include <sys/filio.h>
+#endif
+
+#include "wx/private/fdiomanager.h"
+
+class wxSocketImplUnix : public wxSocketImpl,
+                         public wxFDIOHandler
+{
+public:
+    wxSocketImplUnix(wxSocketBase& wxsocket)
+        : wxSocketImpl(wxsocket)
+    {
+        m_fds[0] =
+        m_fds[1] = -1;
+    }
+
+    virtual wxSocketError GetLastError() const;
+
+    virtual void ReenableEvents(wxSocketEventFlags flags)
+    {
+        // enable the notifications about input/output being available again in
+        // case they were disabled by OnRead/WriteWaiting()
+        //
+        // notice that we'd like to enable the events here only if there is
+        // nothing more left on the socket right now as otherwise we're going
+        // to get a "ready for whatever" notification immediately (well, during
+        // the next event loop iteration) and disable the event back again
+        // which is rather inefficient but unfortunately doing it like this
+        // doesn't work because the existing code (e.g. src/common/sckipc.cpp)
+        // expects to keep getting notifications about the data available from
+        // the socket even if it didn't read all the data the last time, so we
+        // absolutely have to continue generating them
+        EnableEvents(flags);
+    }
+
+    // wxFDIOHandler methods
+    virtual void OnReadWaiting();
+    virtual void OnWriteWaiting();
+    virtual void OnExceptionWaiting();
+    virtual bool IsOk() const { return m_fd != INVALID_SOCKET; }
+
+private:
+    virtual void DoClose()
+    {
+        DisableEvents();
+
+        close(m_fd);
+    }
+
+    virtual void UnblockAndRegisterWithEventLoop()
+    {
+        int trueArg = 1;
+        ioctl(m_fd, FIONBIO, &trueArg);
+
+        EnableEvents();
+    }
+
+    // enable or disable notifications for socket input/output events
+    void EnableEvents(int flags = wxSOCKET_INPUT_FLAG | wxSOCKET_OUTPUT_FLAG)
+        { DoEnableEvents(flags, true); }
+    void DisableEvents(int flags = wxSOCKET_INPUT_FLAG | wxSOCKET_OUTPUT_FLAG)
+        { DoEnableEvents(flags, false); }
+
+    // really enable or disable socket input/output events
+    void DoEnableEvents(int flags, bool enable);
+
+protected:
+    // descriptors for input and output event notification channels associated
+    // with the socket
+    int m_fds[2];
+
+private:
+    // notify the associated wxSocket about a change in socket state and shut
+    // down the socket if the event is wxSOCKET_LOST
+    void OnStateChange(wxSocketNotify event);
+
+    // check if there is any input available, return 1 if yes, 0 if no or -1 on
+    // error
+    int CheckForInput();
+
+
+    // give it access to our m_fds
+    friend class wxSocketFDBasedManager;
+};
+
+// A version of wxSocketManager which uses FDs for socket IO: it is used by
+// Unix console applications and some X11-like ports (wxGTK and wxMotif but not
+// wxX11 currently) which implement their own port-specific wxFDIOManagers
+class wxSocketFDBasedManager : public wxSocketManager
+{
+public:
+    wxSocketFDBasedManager()
+    {
+        m_fdioManager = NULL;
+    }
+
+    virtual bool OnInit();
+    virtual void OnExit() { }
+
+    virtual wxSocketImpl *CreateSocket(wxSocketBase& wxsocket)
+    {
+        return new wxSocketImplUnix(wxsocket);
+    }
+
+    virtual void Install_Callback(wxSocketImpl *socket_, wxSocketNotify event);
+    virtual void Uninstall_Callback(wxSocketImpl *socket_, wxSocketNotify event);
+
+protected:
+    // get the FD index corresponding to the given wxSocketNotify
+    wxFDIOManager::Direction
+    GetDirForEvent(wxSocketImpl *socket, wxSocketNotify event);
+
+    // access the FDs we store
+    int& FD(wxSocketImplUnix *socket, wxFDIOManager::Direction d)
+    {
+        return socket->m_fds[d];
+    }
+
+    wxFDIOManager *m_fdioManager;
+
+    wxDECLARE_NO_COPY_CLASS(wxSocketFDBasedManager);
+};
+
+#endif  /* _WX_UNIX_GSOCKUNX_H_ */