--- /dev/null
+/////////////////////////////////////////////////////////////////////////////
+// Name: socket.cpp
+// Purpose: Socket handler classes
+// Authors: Guilhem Lavaux, Guillermo Rodriguez Garcia
+// Created: April 1997
+// Copyright: (C) 1999-1997, Guilhem Lavaux
+// (C) 2000-1999, Guillermo Rodriguez Garcia
+// RCS_ID: $Id$
+// License: see wxWindows licence
+/////////////////////////////////////////////////////////////////////////////
+
+// ==========================================================================
+// Declarations
+// ==========================================================================
+
+#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
+#pragma implementation "socket.h"
+#endif
+
+// For compilers that support precompilation, includes "wx.h".
+#include "wx/wxprec.h"
+
+#ifdef __BORLANDC__
+#pragma hdrstop
+#endif
+
+#if wxUSE_SOCKETS
+
+#include "wx/app.h"
+#include "wx/apptrait.h"
+#include "wx/defs.h"
+#include "wx/object.h"
+#include "wx/string.h"
+#include "wx/timer.h"
+#include "wx/utils.h"
+#include "wx/module.h"
+#include "wx/log.h"
+#include "wx/intl.h"
+#include "wx/event.h"
+
+#include "wx/sckaddr.h"
+#include "wx/socket.h"
+#include "wx/mac/carbon/private.h"
+
+#include <sys/socket.h>
+#include <netinet/in.h>
+#include <arpa/inet.h>
+#include <netdb.h>
+
+#define HAVE_INET_ATON
+
+// DLL options compatibility check:
+#include "wx/build.h"
+WX_CHECK_BUILD_OPTIONS("wxNet")
+
+// --------------------------------------------------------------------------
+// macros and constants
+// --------------------------------------------------------------------------
+
+// discard buffer
+#define MAX_DISCARD_SIZE (10 * 1024)
+
+#ifndef INVALID_SOCKET
+#define INVALID_SOCKET -1
+#endif
+
+// what to do within waits: we have 2 cases: from the main thread itself we
+// have to call wxYield() to let the events (including the GUI events and the
+// low-level (not wxWindows) events from GSocket) be processed. From another
+// thread it is enough to just call wxThread::Yield() which will give away the
+// rest of our time slice: the explanation is that the events will be processed
+// by the main thread anyhow, without calling wxYield(), but we don't want to
+// eat the CPU time uselessly while sitting in the loop waiting for the data
+#if wxUSE_THREADS
+ #define PROCESS_EVENTS() \
+ { \
+ if ( wxThread::IsMain() ) \
+ wxYield(); \
+ else \
+ wxThread::Yield(); \
+ }
+#else // !wxUSE_THREADS
+ #define PROCESS_EVENTS() wxYield()
+#endif // wxUSE_THREADS/!wxUSE_THREADS
+
+#define wxTRACE_Socket _T("wxSocket")
+
+// --------------------------------------------------------------------------
+// wxWin macros
+// --------------------------------------------------------------------------
+
+IMPLEMENT_CLASS(wxSocketBase, wxObject)
+IMPLEMENT_CLASS(wxSocketServer, wxSocketBase)
+IMPLEMENT_CLASS(wxSocketClient, wxSocketBase)
+IMPLEMENT_CLASS(wxDatagramSocket, wxSocketBase)
+IMPLEMENT_DYNAMIC_CLASS(wxSocketEvent, wxEvent)
+
+// --------------------------------------------------------------------------
+// private classes
+// --------------------------------------------------------------------------
+
+class wxSocketState : public wxObject
+{
+public:
+ wxSocketFlags m_flags;
+ wxSocketEventFlags m_eventmask;
+ bool m_notify;
+ void *m_clientData;
+
+public:
+ wxSocketState() : wxObject() {}
+
+ DECLARE_NO_COPY_CLASS(wxSocketState)
+};
+
+struct _GSocket
+{
+ CFSocketNativeHandle m_fd;
+ GAddress *m_local;
+ GAddress *m_peer;
+ GSocketError m_error;
+
+ int m_non_blocking;
+ int m_server;
+ int m_stream;
+ int m_oriented;
+ int m_establishing;
+ unsigned long m_timeout;
+
+
+ /* Callbacks */
+ GSocketEventFlags m_detected;
+ GSocketCallback m_cbacks[GSOCK_MAX_EVENT];
+ char *m_data[GSOCK_MAX_EVENT];
+
+ CFSocketRef m_cfSocket;
+ CFRunLoopSourceRef m_runLoopSource;
+ CFReadStreamRef m_readStream ;
+ CFWriteStreamRef m_writeStream ;
+} ;
+
+struct _GAddress
+{
+ struct sockaddr *m_addr;
+ size_t m_len;
+
+ GAddressType m_family;
+ int m_realfamily;
+
+ GSocketError m_error;
+ int somethingElse ;
+};
+
+void wxMacCFSocketCallback(CFSocketRef s, CFSocketCallBackType callbackType,
+ CFDataRef address, const void* data, void* info) ;
+void _GSocket_Enable(GSocket *socket, GSocketEvent event) ;
+void _GSocket_Disable(GSocket *socket, GSocketEvent event) ;
+
+// ==========================================================================
+// wxSocketBase
+// ==========================================================================
+
+// --------------------------------------------------------------------------
+// Initialization and shutdown
+// --------------------------------------------------------------------------
+
+// FIXME-MT: all this is MT-unsafe, of course, we should protect all accesses
+// to m_countInit with a crit section
+size_t wxSocketBase::m_countInit = 0;
+
+bool wxSocketBase::IsInitialized()
+{
+ return m_countInit > 0;
+}
+
+bool wxSocketBase::Initialize()
+{
+ if ( !m_countInit++ )
+ {
+#if 0
+ wxAppTraits *traits = wxAppConsole::GetInstance() ?
+ wxAppConsole::GetInstance()->GetTraits() : NULL;
+ GSocketGUIFunctionsTable *functions =
+ traits ? traits->GetSocketGUIFunctionsTable() : NULL;
+ GSocket_SetGUIFunctions(functions);
+
+ if ( !GSocket_Init() )
+ {
+ m_countInit--;
+
+ return FALSE;
+ }
+#endif
+ }
+
+ return TRUE;
+}
+
+void wxSocketBase::Shutdown()
+{
+ // we should be initialized
+ wxASSERT_MSG( m_countInit, _T("extra call to Shutdown()") );
+ if ( !--m_countInit )
+ {
+#if 0
+ GSocket_Cleanup();
+#endif
+ }
+}
+
+// --------------------------------------------------------------------------
+// Ctor and dtor
+// --------------------------------------------------------------------------
+
+void wxSocketBase::Init()
+{
+ m_socket = NULL;
+ m_type = wxSOCKET_UNINIT;
+
+ // state
+ m_flags = 0;
+ m_connected =
+ m_establishing =
+ m_reading =
+ m_writing =
+ m_error = FALSE;
+ m_lcount = 0;
+ m_timeout = 600;
+ m_beingDeleted = FALSE;
+
+ // pushback buffer
+ m_unread = NULL;
+ m_unrd_size = 0;
+ m_unrd_cur = 0;
+
+ // events
+ m_id = -1;
+ m_handler = NULL;
+ m_clientData = NULL;
+ m_notify = FALSE;
+ m_eventmask = 0;
+
+ if ( !IsInitialized() )
+ {
+ // this Initialize() will be undone by wxSocketModule::OnExit(), all the
+ // other calls to it should be matched by a call to Shutdown()
+ Initialize();
+ }
+}
+
+wxSocketBase::wxSocketBase()
+{
+ Init();
+}
+
+wxSocketBase::wxSocketBase(wxSocketFlags flags, wxSocketType type)
+{
+ Init();
+
+ m_flags = flags;
+ m_type = type;
+}
+
+wxSocketBase::~wxSocketBase()
+{
+ // Just in case the app called Destroy() *and* then deleted
+ // the socket immediately: don't leave dangling pointers.
+ wxAppTraits *traits = wxTheApp ? wxTheApp->GetTraits() : NULL;
+ if ( traits )
+ traits->RemoveFromPendingDelete(this);
+
+ // Shutdown and close the socket
+ if (!m_beingDeleted)
+ Close();
+
+ // Destroy the GSocket object
+ if (m_socket)
+ {
+ GSocket_destroy(m_socket);
+ }
+
+ // Free the pushback buffer
+ if (m_unread)
+ free(m_unread);
+}
+
+bool wxSocketBase::Destroy()
+{
+ // Delayed destruction: the socket will be deleted during the next
+ // idle loop iteration. This ensures that all pending events have
+ // been processed.
+ m_beingDeleted = TRUE;
+
+ // Shutdown and close the socket
+ Close();
+
+ // Supress events from now on
+ Notify(FALSE);
+
+ // schedule this object for deletion
+ wxAppTraits *traits = wxTheApp ? wxTheApp->GetTraits() : NULL;
+ if ( traits )
+ {
+ // let the traits object decide what to do with us
+ traits->ScheduleForDestroy(this);
+ }
+ else // no app or no traits
+ {
+ // in wxBase we might have no app object at all, don't leak memory
+ delete this;
+ }
+
+ return TRUE;
+}
+
+// --------------------------------------------------------------------------
+// Basic IO calls
+// --------------------------------------------------------------------------
+
+// The following IO operations update m_error and m_lcount:
+// {Read, Write, ReadMsg, WriteMsg, Peek, Unread, Discard}
+//
+// TODO: Should Connect, Accept and AcceptWith update m_error?
+
+bool wxSocketBase::Close()
+{
+ // Interrupt pending waits
+ InterruptWait();
+
+ if (m_socket)
+ {
+ GSocket_Shutdown(m_socket);
+ }
+
+ m_connected = FALSE;
+ m_establishing = FALSE;
+ return TRUE;
+}
+
+wxSocketBase& wxSocketBase::Read(void* buffer, wxUint32 nbytes)
+{
+ // Mask read events
+ m_reading = TRUE;
+
+ m_lcount = _Read(buffer, nbytes);
+
+ // If in wxSOCKET_WAITALL mode, all bytes should have been read.
+ if (m_flags & wxSOCKET_WAITALL)
+ m_error = (m_lcount != nbytes);
+ else
+ m_error = (m_lcount == 0);
+
+ // Allow read events from now on
+ m_reading = FALSE;
+
+ return *this;
+}
+
+wxUint32 wxSocketBase::_Read(void* buffer, wxUint32 nbytes)
+{
+ int total = 0;
+
+ // Try the pushback buffer first
+ total = GetPushback(buffer, nbytes, FALSE);
+ nbytes -= total;
+ buffer = (char *)buffer + total;
+
+ // Return now in one of the following cases:
+ // - the socket is invalid,
+ // - we got all the data,
+ // - we got *some* data and we are not using wxSOCKET_WAITALL.
+ if ( !m_socket ||
+ !nbytes ||
+ ((total != 0) && !(m_flags & wxSOCKET_WAITALL)) )
+ return total;
+
+ // Possible combinations (they are checked in this order)
+ // wxSOCKET_NOWAIT
+ // wxSOCKET_WAITALL (with or without wxSOCKET_BLOCK)
+ // wxSOCKET_BLOCK
+ // wxSOCKET_NONE
+ //
+
+ int ret;
+ if (m_flags & wxSOCKET_NOWAIT)
+ {
+ GSocket_SetNonBlocking(m_socket, 1);
+ ret = GSocket_Read(m_socket, (char *)buffer, nbytes);
+ GSocket_SetNonBlocking(m_socket, 0);
+
+ if (ret > 0)
+ total += ret;
+ }
+ else
+ {
+ bool more = TRUE;
+
+ while (more)
+ {
+ if ( !(m_flags & wxSOCKET_BLOCK) && !WaitForRead() )
+ break;
+
+ ret = GSocket_Read(m_socket, (char *)buffer, nbytes);
+
+ if (ret > 0)
+ {
+ total += ret;
+ nbytes -= ret;
+ buffer = (char *)buffer + ret;
+ }
+
+ // If we got here and wxSOCKET_WAITALL is not set, we can leave
+ // now. Otherwise, wait until we recv all the data or until there
+ // is an error.
+ //
+ more = (ret > 0 && nbytes > 0 && (m_flags & wxSOCKET_WAITALL));
+ }
+ }
+
+ return total;
+}
+
+wxSocketBase& wxSocketBase::ReadMsg(void* buffer, wxUint32 nbytes)
+{
+ wxUint32 len, len2, sig, total;
+ bool error;
+ int old_flags;
+ struct
+ {
+ unsigned char sig[4];
+ unsigned char len[4];
+ } msg;
+
+ // Mask read events
+ m_reading = TRUE;
+
+ total = 0;
+ error = TRUE;
+ old_flags = m_flags;
+ SetFlags((m_flags & wxSOCKET_BLOCK) | wxSOCKET_WAITALL);
+
+ if (_Read(&msg, sizeof(msg)) != sizeof(msg))
+ goto exit;
+
+ sig = (wxUint32)msg.sig[0];
+ sig |= (wxUint32)(msg.sig[1] << 8);
+ sig |= (wxUint32)(msg.sig[2] << 16);
+ sig |= (wxUint32)(msg.sig[3] << 24);
+
+ if (sig != 0xfeeddead)
+ {
+ wxLogWarning(_("wxSocket: invalid signature in ReadMsg."));
+ goto exit;
+ }
+
+ len = (wxUint32)msg.len[0];
+ len |= (wxUint32)(msg.len[1] << 8);
+ len |= (wxUint32)(msg.len[2] << 16);
+ len |= (wxUint32)(msg.len[3] << 24);
+
+ if (len > nbytes)
+ {
+ len2 = len - nbytes;
+ len = nbytes;
+ }
+ else
+ len2 = 0;
+
+ // Don't attemp to read if the msg was zero bytes long.
+ if (len)
+ {
+ total = _Read(buffer, len);
+
+ if (total != len)
+ goto exit;
+ }
+ if (len2)
+ {
+ char *discard_buffer = new char[MAX_DISCARD_SIZE];
+ long discard_len;
+
+ // NOTE: discarded bytes don't add to m_lcount.
+ do
+ {
+ discard_len = ((len2 > MAX_DISCARD_SIZE)? MAX_DISCARD_SIZE : len2);
+ discard_len = _Read(discard_buffer, (wxUint32)discard_len);
+ len2 -= (wxUint32)discard_len;
+ }
+ while ((discard_len > 0) && len2);
+
+ delete [] discard_buffer;
+
+ if (len2 != 0)
+ goto exit;
+ }
+ if (_Read(&msg, sizeof(msg)) != sizeof(msg))
+ goto exit;
+
+ sig = (wxUint32)msg.sig[0];
+ sig |= (wxUint32)(msg.sig[1] << 8);
+ sig |= (wxUint32)(msg.sig[2] << 16);
+ sig |= (wxUint32)(msg.sig[3] << 24);
+
+ if (sig != 0xdeadfeed)
+ {
+ wxLogWarning(_("wxSocket: invalid signature in ReadMsg."));
+ goto exit;
+ }
+
+ // everything was OK
+ error = FALSE;
+
+exit:
+ m_error = error;
+ m_lcount = total;
+ m_reading = FALSE;
+ SetFlags(old_flags);
+
+ return *this;
+}
+
+wxSocketBase& wxSocketBase::Peek(void* buffer, wxUint32 nbytes)
+{
+ // Mask read events
+ m_reading = TRUE;
+
+ m_lcount = _Read(buffer, nbytes);
+ Pushback(buffer, m_lcount);
+
+ // If in wxSOCKET_WAITALL mode, all bytes should have been read.
+ if (m_flags & wxSOCKET_WAITALL)
+ m_error = (m_lcount != nbytes);
+ else
+ m_error = (m_lcount == 0);
+
+ // Allow read events again
+ m_reading = FALSE;
+
+ return *this;
+}
+
+wxSocketBase& wxSocketBase::Write(const void *buffer, wxUint32 nbytes)
+{
+ // Mask write events
+ m_writing = TRUE;
+
+ m_lcount = _Write(buffer, nbytes);
+
+ // If in wxSOCKET_WAITALL mode, all bytes should have been written.
+ if (m_flags & wxSOCKET_WAITALL)
+ m_error = (m_lcount != nbytes);
+ else
+ m_error = (m_lcount == 0);
+
+ // Allow write events again
+ m_writing = FALSE;
+
+ return *this;
+}
+
+wxUint32 wxSocketBase::_Write(const void *buffer, wxUint32 nbytes)
+{
+ wxUint32 total = 0;
+
+ // If the socket is invalid or parameters are ill, return immediately
+ if (!m_socket || !buffer || !nbytes)
+ return 0;
+
+ // Possible combinations (they are checked in this order)
+ // wxSOCKET_NOWAIT
+ // wxSOCKET_WAITALL (with or without wxSOCKET_BLOCK)
+ // wxSOCKET_BLOCK
+ // wxSOCKET_NONE
+ //
+ int ret;
+ if (m_flags & wxSOCKET_NOWAIT)
+ {
+ GSocket_SetNonBlocking(m_socket, 1);
+ ret = GSocket_Write(m_socket, (const char *)buffer, nbytes);
+ GSocket_SetNonBlocking(m_socket, 0);
+
+ if (ret > 0)
+ total = ret;
+ }
+ else
+ {
+ bool more = TRUE;
+
+ while (more)
+ {
+ if ( !(m_flags & wxSOCKET_BLOCK) && !WaitForWrite() )
+ break;
+
+ ret = GSocket_Write(m_socket, (const char *)buffer, nbytes);
+
+ if (ret > 0)
+ {
+ total += ret;
+ nbytes -= ret;
+ buffer = (const char *)buffer + ret;
+ }
+
+ // If we got here and wxSOCKET_WAITALL is not set, we can leave
+ // now. Otherwise, wait until we send all the data or until there
+ // is an error.
+ //
+ more = (ret > 0 && nbytes > 0 && (m_flags & wxSOCKET_WAITALL));
+ }
+ }
+
+ return total;
+}
+
+wxSocketBase& wxSocketBase::WriteMsg(const void *buffer, wxUint32 nbytes)
+{
+ wxUint32 total;
+ bool error;
+ struct
+ {
+ unsigned char sig[4];
+ unsigned char len[4];
+ } msg;
+
+ // Mask write events
+ m_writing = TRUE;
+
+ error = TRUE;
+ total = 0;
+ SetFlags((m_flags & wxSOCKET_BLOCK) | wxSOCKET_WAITALL);
+
+ msg.sig[0] = (unsigned char) 0xad;
+ msg.sig[1] = (unsigned char) 0xde;
+ msg.sig[2] = (unsigned char) 0xed;
+ msg.sig[3] = (unsigned char) 0xfe;
+
+ msg.len[0] = (unsigned char) (nbytes & 0xff);
+ msg.len[1] = (unsigned char) ((nbytes >> 8) & 0xff);
+ msg.len[2] = (unsigned char) ((nbytes >> 16) & 0xff);
+ msg.len[3] = (unsigned char) ((nbytes >> 24) & 0xff);
+
+ if (_Write(&msg, sizeof(msg)) < sizeof(msg))
+ goto exit;
+
+ total = _Write(buffer, nbytes);
+
+ if (total < nbytes)
+ goto exit;
+
+ msg.sig[0] = (unsigned char) 0xed;
+ msg.sig[1] = (unsigned char) 0xfe;
+ msg.sig[2] = (unsigned char) 0xad;
+ msg.sig[3] = (unsigned char) 0xde;
+ msg.len[0] = msg.len[1] = msg.len[2] = msg.len[3] = (char) 0;
+
+ if ((_Write(&msg, sizeof(msg))) < sizeof(msg))
+ goto exit;
+
+ // everything was OK
+ error = FALSE;
+
+exit:
+ m_error = error;
+ m_lcount = total;
+ m_writing = FALSE;
+
+ return *this;
+}
+
+wxSocketBase& wxSocketBase::Unread(const void *buffer, wxUint32 nbytes)
+{
+ if (nbytes != 0)
+ Pushback(buffer, nbytes);
+
+ m_error = FALSE;
+ m_lcount = nbytes;
+
+ return *this;
+}
+
+wxSocketBase& wxSocketBase::Discard()
+{
+ char *buffer = new char[MAX_DISCARD_SIZE];
+ wxUint32 ret;
+ wxUint32 total = 0;
+
+ // Mask read events
+ m_reading = TRUE;
+
+ SetFlags(wxSOCKET_NOWAIT);
+
+ do
+ {
+ ret = _Read(buffer, MAX_DISCARD_SIZE);
+ total += ret;
+ }
+ while (ret == MAX_DISCARD_SIZE);
+
+ delete[] buffer;
+ m_lcount = total;
+ m_error = FALSE;
+
+ // Allow read events again
+ m_reading = FALSE;
+
+ return *this;
+}
+
+// --------------------------------------------------------------------------
+// Wait functions
+// --------------------------------------------------------------------------
+
+// All Wait functions poll the socket using GSocket_Select() to
+// check for the specified combination of conditions, until one
+// of these conditions become true, an error occurs, or the
+// timeout elapses. The polling loop calls PROCESS_EVENTS(), so
+// this won't block the GUI.
+
+bool wxSocketBase::_Wait(long seconds,
+ long milliseconds,
+ wxSocketEventFlags flags)
+{
+
+ GSocketEventFlags result;
+ long timeout;
+
+ // Set this to TRUE to interrupt ongoing waits
+ m_interrupt = FALSE;
+
+ // Check for valid socket
+ if (!m_socket)
+ return FALSE;
+
+ // Check for valid timeout value.
+ if (seconds != -1)
+ timeout = seconds * 1000 + milliseconds;
+ else
+ timeout = m_timeout * 1000;
+
+#if !defined(wxUSE_GUI) || !wxUSE_GUI
+ GSocket_SetTimeout(m_socket, timeout);
+#endif
+
+ // Wait in an active polling loop.
+ //
+ // NOTE: We duplicate some of the code in OnRequest, but this doesn't
+ // hurt. It has to be here because the (GSocket) event might arrive
+ // a bit delayed, and it has to be in OnRequest as well because we
+ // don't know whether the Wait functions are being used.
+ //
+ // Do this at least once (important if timeout == 0, when
+ // we are just polling). Also, if just polling, do not yield.
+
+ wxStopWatch chrono;
+ bool done = FALSE;
+
+ while (!done)
+ {
+ result = GSocket_Select(m_socket, flags | GSOCK_LOST_FLAG);
+
+ // Incoming connection (server) or connection established (client)
+ if (result & GSOCK_CONNECTION_FLAG)
+ {
+ m_connected = TRUE;
+ m_establishing = FALSE;
+ return TRUE;
+ }
+
+ // Data available or output buffer ready
+ if ((result & GSOCK_INPUT_FLAG) || (result & GSOCK_OUTPUT_FLAG))
+ {
+ return TRUE;
+ }
+
+ // Connection lost
+ if (result & GSOCK_LOST_FLAG)
+ {
+ m_connected = FALSE;
+ m_establishing = FALSE;
+ return (flags & GSOCK_LOST_FLAG) != 0;
+ }
+
+ // Wait more?
+ if ((!timeout) || (chrono.Time() > timeout) || (m_interrupt))
+ done = TRUE;
+ else
+ PROCESS_EVENTS();
+ }
+
+ return FALSE;
+}
+
+bool wxSocketBase::Wait(long seconds, long milliseconds)
+{
+ return _Wait(seconds, milliseconds, GSOCK_INPUT_FLAG |
+ GSOCK_OUTPUT_FLAG |
+ GSOCK_CONNECTION_FLAG |
+ GSOCK_LOST_FLAG);
+}
+
+bool wxSocketBase::WaitForRead(long seconds, long milliseconds)
+{
+ // Check pushback buffer before entering _Wait
+ if (m_unread)
+ return TRUE;
+
+ // Note that GSOCK_INPUT_LOST has to be explicitly passed to
+ // _Wait becuase of the semantics of WaitForRead: a return
+ // value of TRUE means that a GSocket_Read call will return
+ // immediately, not that there is actually data to read.
+
+ return _Wait(seconds, milliseconds, GSOCK_INPUT_FLAG |
+ GSOCK_LOST_FLAG);
+}
+
+bool wxSocketBase::WaitForWrite(long seconds, long milliseconds)
+{
+ return _Wait(seconds, milliseconds, GSOCK_OUTPUT_FLAG);
+}
+
+bool wxSocketBase::WaitForLost(long seconds, long milliseconds)
+{
+ return _Wait(seconds, milliseconds, GSOCK_LOST_FLAG);
+}
+
+// --------------------------------------------------------------------------
+// Miscellaneous
+// --------------------------------------------------------------------------
+
+//
+// Get local or peer address
+//
+
+bool wxSocketBase::GetPeer(wxSockAddress& addr_man) const
+{
+ GAddress *peer;
+
+ if (!m_socket)
+ return FALSE;
+
+ peer = GSocket_GetPeer(m_socket);
+
+ // copying a null address would just trigger an assert anyway
+
+ if (!peer)
+ return FALSE;
+
+ addr_man.SetAddress(peer);
+ GAddress_destroy(peer);
+
+ return TRUE;
+}
+
+bool wxSocketBase::GetLocal(wxSockAddress& addr_man) const
+{
+#if 0
+ GAddress *local;
+
+ if (!m_socket)
+ return FALSE;
+
+ local = GSocket_GetLocal(m_socket);
+ addr_man.SetAddress(local);
+ GAddress_destroy(local);
+#endif
+ return TRUE;
+}
+
+//
+// Save and restore socket state
+//
+
+void wxSocketBase::SaveState()
+{
+ wxSocketState *state;
+
+ state = new wxSocketState();
+
+ state->m_flags = m_flags;
+ state->m_notify = m_notify;
+ state->m_eventmask = m_eventmask;
+ state->m_clientData = m_clientData;
+
+ m_states.Append(state);
+}
+
+void wxSocketBase::RestoreState()
+{
+ wxList::compatibility_iterator node;
+ wxSocketState *state;
+
+ node = m_states.GetLast();
+ if (!node)
+ return;
+
+ state = (wxSocketState *)node->GetData();
+
+ m_flags = state->m_flags;
+ m_notify = state->m_notify;
+ m_eventmask = state->m_eventmask;
+ m_clientData = state->m_clientData;
+
+ m_states.Erase(node);
+ delete state;
+}
+
+//
+// Timeout and flags
+//
+
+void wxSocketBase::SetTimeout(long seconds)
+{
+ m_timeout = seconds;
+
+#if 0
+ if (m_socket)
+ GSocket_SetTimeout(m_socket, m_timeout * 1000);
+#endif
+}
+
+void wxSocketBase::SetFlags(wxSocketFlags flags)
+{
+ m_flags = flags;
+}
+
+
+// --------------------------------------------------------------------------
+// Event handling
+// --------------------------------------------------------------------------
+
+// A note on how events are processed, which is probably the most
+// difficult thing to get working right while keeping the same API
+// and functionality for all platforms.
+//
+// When GSocket detects an event, it calls wx_socket_callback, which in
+// turn just calls wxSocketBase::OnRequest in the corresponding wxSocket
+// object. OnRequest does some housekeeping, and if the event is to be
+// propagated to the user, it creates a new wxSocketEvent object and
+// posts it. The event is not processed immediately, but delayed with
+// AddPendingEvent instead. This is necessary in order to decouple the
+// event processing from wx_socket_callback; otherwise, subsequent IO
+// calls made from the user event handler would fail, as gtk callbacks
+// are not reentrant.
+//
+// Note that, unlike events, user callbacks (now deprecated) are _not_
+// decoupled from wx_socket_callback and thus they suffer from a variety
+// of problems. Avoid them where possible and use events instead.
+
+extern "C"
+void LINKAGEMODE wx_socket_callback(GSocket * WXUNUSED(socket),
+ GSocketEvent notification,
+ char *cdata)
+{
+ wxSocketBase *sckobj = (wxSocketBase *)cdata;
+
+ sckobj->OnRequest((wxSocketNotify) notification);
+}
+
+void wxSocketBase::OnRequest(wxSocketNotify notification)
+{
+ // NOTE: We duplicate some of the code in _Wait, but this doesn't
+ // hurt. It has to be here because the (GSocket) event might arrive
+ // a bit delayed, and it has to be in _Wait as well because we don't
+ // know whether the Wait functions are being used.
+
+ switch(notification)
+ {
+ case wxSOCKET_CONNECTION:
+ m_establishing = FALSE;
+ m_connected = TRUE;
+ break;
+
+ // If we are in the middle of a R/W operation, do not
+ // propagate events to users. Also, filter 'late' events
+ // which are no longer valid.
+
+ case wxSOCKET_INPUT:
+ if (m_reading || !GSocket_Select(m_socket, GSOCK_INPUT_FLAG))
+ return;
+ break;
+
+ case wxSOCKET_OUTPUT:
+ if (m_writing || !GSocket_Select(m_socket, GSOCK_OUTPUT_FLAG))
+ return;
+ break;
+
+ case wxSOCKET_LOST:
+ m_connected = FALSE;
+ m_establishing = FALSE;
+ break;
+
+ default:
+ break;
+ }
+
+ // Schedule the event
+
+ wxSocketEventFlags flag = 0;
+ wxUnusedVar(flag);
+ switch (notification)
+ {
+ case GSOCK_INPUT: flag = GSOCK_INPUT_FLAG; break;
+ case GSOCK_OUTPUT: flag = GSOCK_OUTPUT_FLAG; break;
+ case GSOCK_CONNECTION: flag = GSOCK_CONNECTION_FLAG; break;
+ case GSOCK_LOST: flag = GSOCK_LOST_FLAG; break;
+ default:
+ wxLogWarning(_("wxSocket: unknown event!."));
+ return;
+ }
+
+ if (((m_eventmask & flag) == flag) && m_notify)
+ {
+ if (m_handler)
+ {
+ wxSocketEvent event(m_id);
+ event.m_event = notification;
+ event.m_clientData = m_clientData;
+ event.SetEventObject(this);
+
+ m_handler->AddPendingEvent(event);
+ }
+ }
+}
+
+void wxSocketBase::Notify(bool notify)
+{
+ m_notify = notify;
+}
+
+void wxSocketBase::SetNotify(wxSocketEventFlags flags)
+{
+ m_eventmask = flags;
+}
+
+void wxSocketBase::SetEventHandler(wxEvtHandler& handler, int id)
+{
+ m_handler = &handler;
+ m_id = id;
+}
+
+// --------------------------------------------------------------------------
+// Pushback buffer
+// --------------------------------------------------------------------------
+
+void wxSocketBase::Pushback(const void *buffer, wxUint32 size)
+{
+ if (!size) return;
+
+ if (m_unread == NULL)
+ m_unread = malloc(size);
+ else
+ {
+ void *tmp;
+
+ tmp = malloc(m_unrd_size + size);
+ memcpy((char *)tmp + size, m_unread, m_unrd_size);
+ free(m_unread);
+
+ m_unread = tmp;
+ }
+
+ m_unrd_size += size;
+
+ memcpy(m_unread, buffer, size);
+}
+
+wxUint32 wxSocketBase::GetPushback(void *buffer, wxUint32 size, bool peek)
+{
+ if (!m_unrd_size)
+ return 0;
+
+ if (size > (m_unrd_size-m_unrd_cur))
+ size = m_unrd_size-m_unrd_cur;
+
+ memcpy(buffer, (char *)m_unread + m_unrd_cur, size);
+
+ if (!peek)
+ {
+ m_unrd_cur += size;
+ if (m_unrd_size == m_unrd_cur)
+ {
+ free(m_unread);
+ m_unread = NULL;
+ m_unrd_size = 0;
+ m_unrd_cur = 0;
+ }
+ }
+
+ return size;
+}
+
+
+// ==========================================================================
+// wxSocketServer
+// ==========================================================================
+
+// --------------------------------------------------------------------------
+// Ctor
+// --------------------------------------------------------------------------
+
+wxSocketServer::wxSocketServer(wxSockAddress& addr_man,
+ wxSocketFlags flags)
+ : wxSocketBase(flags, wxSOCKET_SERVER)
+{
+ wxLogTrace( wxTRACE_Socket, _T("Opening wxSocketServer") );
+
+ m_socket = GSocket_new();
+
+ if (!m_socket)
+ {
+ wxLogTrace( wxTRACE_Socket, _T("*** GSocket_new failed") );
+ return;
+ }
+
+ // Setup the socket as server
+
+#if 0
+ GSocket_SetLocal(m_socket, addr_man.GetAddress());
+ if (GSocket_SetServer(m_socket) != GSOCK_NOERROR)
+ {
+ GSocket_destroy(m_socket);
+ m_socket = NULL;
+
+ wxLogTrace( wxTRACE_Socket, _T("*** GSocket_SetServer failed") );
+ return;
+ }
+
+ GSocket_SetTimeout(m_socket, m_timeout * 1000);
+ GSocket_SetCallback(m_socket, GSOCK_INPUT_FLAG | GSOCK_OUTPUT_FLAG |
+ GSOCK_LOST_FLAG | GSOCK_CONNECTION_FLAG,
+ wx_socket_callback, (char *)this);
+#endif
+}
+
+// --------------------------------------------------------------------------
+// Accept
+// --------------------------------------------------------------------------
+
+bool wxSocketServer::AcceptWith(wxSocketBase& sock, bool wait)
+{
+ GSocket *child_socket;
+
+ if (!m_socket)
+ return FALSE;
+
+ // If wait == FALSE, then the call should be nonblocking.
+ // When we are finished, we put the socket to blocking mode
+ // again.
+
+#if 0
+ if (!wait)
+ GSocket_SetNonBlocking(m_socket, 1);
+
+ child_socket = GSocket_WaitConnection(m_socket);
+
+ if (!wait)
+ GSocket_SetNonBlocking(m_socket, 0);
+
+ if (!child_socket)
+ return FALSE;
+
+ sock.m_type = wxSOCKET_BASE;
+ sock.m_socket = child_socket;
+ sock.m_connected = TRUE;
+
+ GSocket_SetTimeout(sock.m_socket, sock.m_timeout * 1000);
+ GSocket_SetCallback(sock.m_socket, GSOCK_INPUT_FLAG | GSOCK_OUTPUT_FLAG |
+ GSOCK_LOST_FLAG | GSOCK_CONNECTION_FLAG,
+ wx_socket_callback, (char *)&sock);
+#endif
+ return TRUE;
+}
+
+wxSocketBase *wxSocketServer::Accept(bool wait)
+{
+ wxSocketBase* sock = new wxSocketBase();
+
+ sock->SetFlags(m_flags);
+
+ if (!AcceptWith(*sock, wait))
+ {
+ sock->Destroy();
+ sock = NULL;
+ }
+
+ return sock;
+}
+
+bool wxSocketServer::WaitForAccept(long seconds, long milliseconds)
+{
+ return _Wait(seconds, milliseconds, GSOCK_CONNECTION_FLAG);
+}
+
+// ==========================================================================
+// wxSocketClient
+// ==========================================================================
+
+// --------------------------------------------------------------------------
+// Ctor and dtor
+// --------------------------------------------------------------------------
+
+wxSocketClient::wxSocketClient(wxSocketFlags flags)
+ : wxSocketBase(flags, wxSOCKET_CLIENT)
+{
+}
+
+wxSocketClient::~wxSocketClient()
+{
+}
+
+// --------------------------------------------------------------------------
+// Connect
+// --------------------------------------------------------------------------
+
+bool wxSocketClient::Connect(wxSockAddress& addr_man, bool wait)
+{
+ GSocketError err ;
+
+ if (m_socket)
+ {
+ // Shutdown and destroy the socket
+ Close();
+ GSocket_destroy(m_socket);
+ }
+
+ m_socket = GSocket_new();
+ m_connected = FALSE;
+ m_establishing = FALSE;
+
+ if (!m_socket)
+ return FALSE;
+
+ GSocket_SetTimeout(m_socket, m_timeout * 1000);
+ GSocket_SetCallback(m_socket, GSOCK_INPUT_FLAG | GSOCK_OUTPUT_FLAG |
+ GSOCK_LOST_FLAG | GSOCK_CONNECTION_FLAG,
+ wx_socket_callback, (char *)this);
+
+ // If wait == FALSE, then the call should be nonblocking.
+ // When we are finished, we put the socket to blocking mode
+ // again.
+
+ if (!wait)
+ GSocket_SetNonBlocking(m_socket, 1);
+
+ GSocket_SetPeer(m_socket, addr_man.GetAddress());
+ err = GSocket_Connect(m_socket, GSOCK_STREAMED);
+
+ if (!wait)
+ GSocket_SetNonBlocking(m_socket, 0);
+
+ if (err != GSOCK_NOERROR)
+ {
+ if (err == GSOCK_WOULDBLOCK)
+ m_establishing = TRUE;
+
+ return FALSE;
+ }
+
+ m_connected = TRUE;
+ return TRUE;
+}
+
+bool wxSocketClient::WaitOnConnect(long seconds, long milliseconds)
+{
+ if (m_connected) // Already connected
+ return TRUE;
+
+ if (!m_establishing || !m_socket) // No connection in progress
+ return FALSE;
+
+ return _Wait(seconds, milliseconds, GSOCK_CONNECTION_FLAG |
+ GSOCK_LOST_FLAG);
+}
+
+// ==========================================================================
+// wxDatagramSocket
+// ==========================================================================
+
+/* NOTE: experimental stuff - might change */
+
+wxDatagramSocket::wxDatagramSocket( wxSockAddress& addr,
+ wxSocketFlags flags )
+ : wxSocketBase( flags, wxSOCKET_DATAGRAM )
+{
+#if 0
+ // Create the socket
+ m_socket = GSocket_new();
+
+ if(!m_socket)
+ return;
+
+ // Setup the socket as non connection oriented
+ GSocket_SetLocal(m_socket, addr.GetAddress());
+ if( GSocket_SetNonOriented(m_socket) != GSOCK_NOERROR )
+ {
+ GSocket_destroy(m_socket);
+ m_socket = NULL;
+ return;
+ }
+
+ // Initialize all stuff
+ m_connected = FALSE;
+ m_establishing = FALSE;
+ GSocket_SetTimeout( m_socket, m_timeout );
+ GSocket_SetCallback( m_socket, GSOCK_INPUT_FLAG | GSOCK_OUTPUT_FLAG |
+ GSOCK_LOST_FLAG | GSOCK_CONNECTION_FLAG,
+ wx_socket_callback, (char*)this );
+#endif
+}
+
+wxDatagramSocket& wxDatagramSocket::RecvFrom( wxSockAddress& addr,
+ void* buf,
+ wxUint32 nBytes )
+{
+ Read(buf, nBytes);
+ GetPeer(addr);
+ return (*this);
+}
+
+wxDatagramSocket& wxDatagramSocket::SendTo( wxSockAddress& addr,
+ const void* buf,
+ wxUint32 nBytes )
+{
+ GSocket_SetPeer(m_socket, addr.GetAddress());
+ Write(buf, nBytes);
+ return (*this);
+}
+
+/*
+ * -------------------------------------------------------------------------
+ * GAddress
+ * -------------------------------------------------------------------------
+ */
+
+/* CHECK_ADDRESS verifies that the current address family is either
+ * GSOCK_NOFAMILY or GSOCK_*family*, and if it is GSOCK_NOFAMILY, it
+ * initalizes it to be a GSOCK_*family*. In other cases, it returns
+ * an appropiate error code.
+ *
+ * CHECK_ADDRESS_RETVAL does the same but returning 'retval' on error.
+ */
+#define CHECK_ADDRESS(address, family) \
+{ \
+ if (address->m_family == GSOCK_NOFAMILY) \
+ if (_GAddress_Init_##family(address) != GSOCK_NOERROR) \
+ return address->m_error; \
+ if (address->m_family != GSOCK_##family) \
+ { \
+ address->m_error = GSOCK_INVADDR; \
+ return GSOCK_INVADDR; \
+ } \
+}
+
+#define CHECK_ADDRESS_RETVAL(address, family, retval) \
+{ \
+ if (address->m_family == GSOCK_NOFAMILY) \
+ if (_GAddress_Init_##family(address) != GSOCK_NOERROR) \
+ return retval; \
+ if (address->m_family != GSOCK_##family) \
+ { \
+ address->m_error = GSOCK_INVADDR; \
+ return retval; \
+ } \
+}
+
+
+GAddress *GAddress_new(void)
+{
+ GAddress *address;
+
+ if ((address = (GAddress *) malloc(sizeof(GAddress))) == NULL)
+ return NULL;
+
+ address->m_family = GSOCK_NOFAMILY;
+ address->m_addr = NULL;
+ address->m_len = 0;
+
+ return address;
+}
+
+GAddress *GAddress_copy(GAddress *address)
+{
+ GAddress *addr2;
+
+ assert(address != NULL);
+
+ if ((addr2 = (GAddress *) malloc(sizeof(GAddress))) == NULL)
+ return NULL;
+
+ memcpy(addr2, address, sizeof(GAddress));
+
+ if (address->m_addr && address->m_len > 0)
+ {
+ addr2->m_addr = (struct sockaddr *)malloc(addr2->m_len);
+ if (addr2->m_addr == NULL)
+ {
+ free(addr2);
+ return NULL;
+ }
+ memcpy(addr2->m_addr, address->m_addr, addr2->m_len);
+ }
+
+ return addr2;
+}
+
+void GAddress_destroy(GAddress *address)
+{
+ assert(address != NULL);
+
+ if (address->m_addr)
+ free(address->m_addr);
+
+ free(address);
+}
+
+void GAddress_SetFamily(GAddress *address, GAddressType type)
+{
+ assert(address != NULL);
+
+ address->m_family = type;
+}
+
+GAddressType GAddress_GetFamily(GAddress *address)
+{
+ assert(address != NULL);
+
+ return address->m_family;
+}
+
+GSocketError _GAddress_translate_from(GAddress *address,
+ struct sockaddr *addr, int len)
+{
+ address->m_realfamily = addr->sa_family;
+ switch (addr->sa_family)
+ {
+ case AF_INET:
+ address->m_family = GSOCK_INET;
+ break;
+ case AF_UNIX:
+ address->m_family = GSOCK_UNIX;
+ break;
+#ifdef AF_INET6
+ case AF_INET6:
+ address->m_family = GSOCK_INET6;
+ break;
+#endif
+ default:
+ {
+ address->m_error = GSOCK_INVOP;
+ return GSOCK_INVOP;
+ }
+ }
+
+ if (address->m_addr)
+ free(address->m_addr);
+
+ address->m_len = len;
+ address->m_addr = (struct sockaddr *)malloc(len);
+
+ if (address->m_addr == NULL)
+ {
+ address->m_error = GSOCK_MEMERR;
+ return GSOCK_MEMERR;
+ }
+ memcpy(address->m_addr, addr, len);
+
+ return GSOCK_NOERROR;
+}
+
+GSocketError _GAddress_translate_to(GAddress *address,
+ struct sockaddr **addr, int *len)
+{
+ if (!address->m_addr)
+ {
+ address->m_error = GSOCK_INVADDR;
+ return GSOCK_INVADDR;
+ }
+
+ *len = address->m_len;
+ *addr = (struct sockaddr *)malloc(address->m_len);
+ if (*addr == NULL)
+ {
+ address->m_error = GSOCK_MEMERR;
+ return GSOCK_MEMERR;
+ }
+
+ memcpy(*addr, address->m_addr, address->m_len);
+ return GSOCK_NOERROR;
+}
+
+/*
+ * -------------------------------------------------------------------------
+ * Internet address family
+ * -------------------------------------------------------------------------
+ */
+
+GSocketError _GAddress_Init_INET(GAddress *address)
+{
+ address->m_len = sizeof(struct sockaddr_in);
+ address->m_addr = (struct sockaddr *) malloc(address->m_len);
+ if (address->m_addr == NULL)
+ {
+ address->m_error = GSOCK_MEMERR;
+ return GSOCK_MEMERR;
+ }
+
+ memset( address->m_addr , 0 , address->m_len ) ;
+ address->m_family = GSOCK_INET;
+ address->m_realfamily = PF_INET;
+ ((struct sockaddr_in *)address->m_addr)->sin_family = AF_INET;
+ ((struct sockaddr_in *)address->m_addr)->sin_addr.s_addr = INADDR_ANY;
+
+ return GSOCK_NOERROR;
+}
+
+GSocketError GAddress_INET_SetHostName(GAddress *address, const char *hostname)
+{
+ struct hostent *he;
+ struct in_addr *addr;
+
+ assert(address != NULL);
+
+ CHECK_ADDRESS(address, INET);
+
+ addr = &(((struct sockaddr_in *)address->m_addr)->sin_addr);
+
+ /* If it is a numeric host name, convert it now */
+#if defined(HAVE_INET_ATON)
+ if (inet_aton(hostname, addr) == 0)
+ {
+#elif defined(HAVE_INET_ADDR)
+ if ( (addr->s_addr = inet_addr(hostname)) == -1 )
+ {
+#else
+ /* Use gethostbyname by default */
+#ifndef __WXMAC__
+ int val = 1; /* VA doesn't like constants in conditional expressions */
+ if (val)
+#endif
+ {
+#endif
+ struct in_addr *array_addr;
+
+ /* It is a real name, we solve it */
+ if ((he = gethostbyname(hostname)) == NULL)
+ {
+ /* Reset to invalid address */
+ addr->s_addr = INADDR_NONE;
+ address->m_error = GSOCK_NOHOST;
+ return GSOCK_NOHOST;
+ }
+ array_addr = (struct in_addr *) *(he->h_addr_list);
+ addr->s_addr = array_addr[0].s_addr;
+ }
+ return GSOCK_NOERROR;
+}
+
+GSocketError GAddress_INET_SetAnyAddress(GAddress *address)
+{
+ return GAddress_INET_SetHostAddress(address, INADDR_ANY);
+}
+
+GSocketError GAddress_INET_SetHostAddress(GAddress *address,
+ unsigned long hostaddr)
+{
+ struct in_addr *addr;
+
+ assert(address != NULL);
+
+ CHECK_ADDRESS(address, INET);
+
+ addr = &(((struct sockaddr_in *)address->m_addr)->sin_addr);
+ addr->s_addr = htonl(hostaddr) ;
+
+ return GSOCK_NOERROR;
+}
+
+GSocketError GAddress_INET_SetPortName(GAddress *address, const char *port,
+ const char *protocol)
+{
+ struct servent *se;
+ struct sockaddr_in *addr;
+
+ assert(address != NULL);
+ CHECK_ADDRESS(address, INET);
+
+ if (!port)
+ {
+ address->m_error = GSOCK_INVPORT;
+ return GSOCK_INVPORT;
+ }
+
+ se = getservbyname(port, protocol);
+ if (!se)
+ {
+ /* the cast to int suppresses compiler warnings about subscript having the
+ type char */
+ if (isdigit((int)port[0]))
+ {
+ int port_int;
+
+ port_int = atoi(port);
+ addr = (struct sockaddr_in *)address->m_addr;
+ addr->sin_port = htons(port_int);
+ return GSOCK_NOERROR;
+ }
+
+ address->m_error = GSOCK_INVPORT;
+ return GSOCK_INVPORT;
+ }
+
+ addr = (struct sockaddr_in *)address->m_addr;
+ addr->sin_port = se->s_port;
+
+ return GSOCK_NOERROR;
+}
+
+GSocketError GAddress_INET_SetPort(GAddress *address, unsigned short port)
+{
+ struct sockaddr_in *addr;
+
+ assert(address != NULL);
+ CHECK_ADDRESS(address, INET);
+
+ addr = (struct sockaddr_in *)address->m_addr;
+ addr->sin_port = htons(port);
+
+ return GSOCK_NOERROR;
+}
+
+GSocketError GAddress_INET_GetHostName(GAddress *address, char *hostname, size_t sbuf)
+{
+ struct hostent *he;
+ char *addr_buf;
+ struct sockaddr_in *addr;
+
+ assert(address != NULL);
+ CHECK_ADDRESS(address, INET);
+
+ addr = (struct sockaddr_in *)address->m_addr;
+ addr_buf = (char *)&(addr->sin_addr);
+
+ he = gethostbyaddr(addr_buf, sizeof(addr->sin_addr), AF_INET);
+ if (he == NULL)
+ {
+ address->m_error = GSOCK_NOHOST;
+ return GSOCK_NOHOST;
+ }
+
+ strncpy(hostname, he->h_name, sbuf);
+
+ return GSOCK_NOERROR;
+}
+
+unsigned long GAddress_INET_GetHostAddress(GAddress *address)
+{
+ struct sockaddr_in *addr;
+
+ assert(address != NULL);
+ CHECK_ADDRESS_RETVAL(address, INET, 0);
+
+ addr = (struct sockaddr_in *)address->m_addr;
+
+ return ntohl(addr->sin_addr.s_addr) ;
+}
+
+unsigned short GAddress_INET_GetPort(GAddress *address)
+{
+ struct sockaddr_in *addr;
+
+ assert(address != NULL);
+ CHECK_ADDRESS_RETVAL(address, INET, 0);
+
+ addr = (struct sockaddr_in *)address->m_addr;
+ return ntohs(addr->sin_port);
+}
+
+/*
+ * -------------------------------------------------------------------------
+ * Unix address family
+ * -------------------------------------------------------------------------
+ */
+
+GSocketError _GAddress_Init_UNIX(GAddress *address)
+{
+ address->m_len = sizeof(struct sockaddr_un);
+ address->m_addr = (struct sockaddr *)malloc(address->m_len);
+ if (address->m_addr == NULL)
+ {
+ address->m_error = GSOCK_MEMERR;
+ return GSOCK_MEMERR;
+ }
+
+ address->m_family = GSOCK_UNIX;
+ address->m_realfamily = PF_UNIX;
+ ((struct sockaddr_un *)address->m_addr)->sun_family = AF_UNIX;
+ ((struct sockaddr_un *)address->m_addr)->sun_path[0] = 0;
+
+ return GSOCK_NOERROR;
+}
+
+#define UNIX_SOCK_PATHLEN (sizeof(addr->sun_path)/sizeof(addr->sun_path[0]))
+
+GSocketError GAddress_UNIX_SetPath(GAddress *address, const char *path)
+{
+ struct sockaddr_un *addr;
+
+ assert(address != NULL);
+
+ CHECK_ADDRESS(address, UNIX);
+
+ addr = ((struct sockaddr_un *)address->m_addr);
+ strncpy(addr->sun_path, path, UNIX_SOCK_PATHLEN);
+ addr->sun_path[UNIX_SOCK_PATHLEN - 1] = '\0';
+
+ return GSOCK_NOERROR;
+}
+
+GSocketError GAddress_UNIX_GetPath(GAddress *address, char *path, size_t sbuf)
+{
+ struct sockaddr_un *addr;
+
+ assert(address != NULL);
+ CHECK_ADDRESS(address, UNIX);
+
+ addr = (struct sockaddr_un *)address->m_addr;
+
+ strncpy(path, addr->sun_path, sbuf);
+
+ return GSOCK_NOERROR;
+}
+
+/* Address handling */
+
+/* GSocket_SetLocal:
+ * GSocket_GetLocal:
+ * GSocket_SetPeer:
+ * GSocket_GetPeer:
+ * Set or get the local or peer address for this socket. The 'set'
+ * functions return GSOCK_NOERROR on success, an error code otherwise.
+ * The 'get' functions return a pointer to a GAddress object on success,
+ * or NULL otherwise, in which case they set the error code of the
+ * corresponding GSocket.
+ *
+ * Error codes:
+ * GSOCK_INVSOCK - the socket is not valid.
+ * GSOCK_INVADDR - the address is not valid.
+ */
+
+GSocketError GSocket_SetLocal(GSocket *socket, GAddress *address)
+{
+ assert(socket != NULL);
+
+ /* the socket must be initialized, or it must be a server */
+ if ((socket->m_fd != INVALID_SOCKET && !socket->m_server))
+ {
+ socket->m_error = GSOCK_INVSOCK;
+ return GSOCK_INVSOCK;
+ }
+
+ /* check address */
+ if (address == NULL || address->m_family == GSOCK_NOFAMILY)
+ {
+ socket->m_error = GSOCK_INVADDR;
+ return GSOCK_INVADDR;
+ }
+
+ if (socket->m_local)
+ GAddress_destroy(socket->m_local);
+
+ socket->m_local = GAddress_copy(address);
+
+ return GSOCK_NOERROR;
+}
+
+GSocketError GSocket_SetPeer(GSocket *socket, GAddress *address)
+{
+ assert(socket != NULL);
+
+ /* check address */
+ if (address == NULL || address->m_family == GSOCK_NOFAMILY)
+ {
+ socket->m_error = GSOCK_INVADDR;
+ return GSOCK_INVADDR;
+ }
+
+ if (socket->m_peer)
+ GAddress_destroy(socket->m_peer);
+
+ socket->m_peer = GAddress_copy(address);
+
+ return GSOCK_NOERROR;
+}
+
+GAddress *GSocket_GetLocal(GSocket *socket)
+{
+ GAddress *address;
+ struct sockaddr addr;
+ socklen_t size = sizeof(addr);
+ GSocketError err;
+
+ assert(socket != NULL);
+
+ /* try to get it from the m_local var first */
+ if (socket->m_local)
+ return GAddress_copy(socket->m_local);
+
+ /* else, if the socket is initialized, try getsockname */
+ if (socket->m_fd == INVALID_SOCKET)
+ {
+ socket->m_error = GSOCK_INVSOCK;
+ return NULL;
+ }
+
+ if (getsockname(socket->m_fd, &addr, (socklen_t *) &size) < 0)
+ {
+ socket->m_error = GSOCK_IOERR;
+ return NULL;
+ }
+
+ /* got a valid address from getsockname, create a GAddress object */
+ address = GAddress_new();
+ if (address == NULL)
+ {
+ socket->m_error = GSOCK_MEMERR;
+ return NULL;
+ }
+
+ err = _GAddress_translate_from(address, &addr, size);
+ if (err != GSOCK_NOERROR)
+ {
+ GAddress_destroy(address);
+ socket->m_error = err;
+ return NULL;
+ }
+
+ return address;
+}
+
+GAddress *GSocket_GetPeer(GSocket *socket)
+{
+ assert(socket != NULL);
+
+ /* try to get it from the m_peer var */
+ if (socket->m_peer)
+ return GAddress_copy(socket->m_peer);
+
+ return NULL;
+}
+
+//
+//
+//
+
+
+GSocket *GSocket_new(void)
+{
+ GSocket *socket;
+ socket = (GSocket *)malloc(sizeof(GSocket));
+
+ if (socket == NULL)
+ return NULL;
+
+ socket->m_fd = INVALID_SOCKET;
+
+ for (int i=0;i<GSOCK_MAX_EVENT;i++)
+ {
+ socket->m_cbacks[i] = NULL;
+ }
+ socket->m_detected = 0;
+
+ socket->m_local = NULL;
+ socket->m_peer = NULL;
+ socket->m_error = GSOCK_NOERROR;
+
+ socket->m_non_blocking = FALSE ;
+ socket->m_stream = TRUE;
+// socket->m_oriented = TRUE;
+ socket->m_server = FALSE;
+ socket->m_establishing = FALSE;
+ socket->m_timeout = 10*60*1000;
+ /* 10 minutes * 60 sec * 1000 millisec */
+
+ socket->m_cfSocket = NULL ;
+ socket->m_runLoopSource = NULL ;
+ socket->m_readStream = NULL;
+ socket->m_writeStream = NULL;
+
+ return socket ;
+}
+
+void GSocket_close(GSocket *socket)
+{
+ if ( socket->m_cfSocket != NULL )
+ {
+ if ( socket->m_readStream )
+ {
+ CFReadStreamClose(socket->m_readStream);
+ CFRelease( socket->m_readStream ) ;
+ socket->m_readStream = NULL ;
+ }
+ if ( socket->m_writeStream )
+ {
+ CFWriteStreamClose(socket->m_writeStream);
+ CFRelease( socket->m_writeStream ) ;
+ socket->m_writeStream = NULL ;
+ }
+
+ CFSocketInvalidate( socket->m_cfSocket ) ;
+ CFRelease( socket->m_cfSocket ) ;
+ socket->m_cfSocket = NULL ;
+ socket->m_fd = INVALID_SOCKET ;
+ }
+}
+
+void GSocket_Shutdown(GSocket *socket)
+{
+ GSocket_close( socket ) ;
+
+ /* Disable GUI callbacks */
+ for (int evt = 0; evt < GSOCK_MAX_EVENT; evt++)
+ socket->m_cbacks[evt] = NULL;
+
+ socket->m_detected = GSOCK_LOST_FLAG;
+}
+
+void GSocket_destroy(GSocket *socket)
+{
+ assert(socket != NULL);
+
+ /* Check that the socket is really shutdowned */
+ if (socket->m_fd != INVALID_SOCKET)
+ GSocket_Shutdown(socket);
+
+ /* Destroy private addresses */
+ if (socket->m_local)
+ GAddress_destroy(socket->m_local);
+
+ if (socket->m_peer)
+ GAddress_destroy(socket->m_peer);
+
+ /* Destroy the socket itself */
+ free(socket);
+}
+
+GSocketError GSocket_Connect(GSocket *socket, GSocketStream stream)
+{
+ assert(socket != NULL);
+
+ if (socket->m_fd != INVALID_SOCKET)
+ {
+ socket->m_error = GSOCK_INVSOCK;
+ return GSOCK_INVSOCK;
+ }
+
+ if (!socket->m_peer)
+ {
+ socket->m_error = GSOCK_INVADDR;
+ return GSOCK_INVADDR;
+ }
+
+ /* Streamed or dgram socket? */
+ socket->m_stream = (stream == GSOCK_STREAMED);
+ socket->m_oriented = TRUE;
+ socket->m_server = FALSE;
+ socket->m_establishing = FALSE;
+
+ GSocketError returnErr = GSOCK_NOERROR ;
+ CFSocketError err ;
+
+ CFAllocatorRef alloc = kCFAllocatorDefault ;
+ CFSocketContext ctx ;
+ memset( &ctx , 0 , sizeof( ctx ) ) ;
+ ctx.info = socket ;
+ socket->m_cfSocket = CFSocketCreate( alloc , socket->m_peer->m_realfamily ,
+ stream == GSOCK_STREAMED ? SOCK_STREAM : SOCK_DGRAM , 0 ,
+ kCFSocketReadCallBack | kCFSocketWriteCallBack | kCFSocketConnectCallBack , wxMacCFSocketCallback , &ctx ) ;
+ _GSocket_Enable(socket, GSOCK_CONNECTION);
+
+ socket->m_fd = CFSocketGetNative( socket->m_cfSocket ) ;
+
+ CFStreamCreatePairWithSocket ( alloc , socket->m_fd , &socket->m_readStream , &socket->m_writeStream );
+ if ((socket->m_readStream == NULL) || (socket->m_writeStream == NULL))
+ {
+ GSocket_close(socket);
+ socket->m_error = GSOCK_IOERR;
+ return GSOCK_IOERR;
+ }
+
+ if ( !CFReadStreamOpen( socket->m_readStream ) || !CFWriteStreamOpen( socket->m_writeStream ) )
+ {
+ GSocket_close(socket);
+ socket->m_error = GSOCK_IOERR;
+ return GSOCK_IOERR;
+ }
+
+ CFRunLoopSourceRef rls = CFSocketCreateRunLoopSource(alloc , socket->m_cfSocket , 0);
+ CFRunLoopAddSource(CFRunLoopGetCurrent() , rls, kCFRunLoopCommonModes);
+ CFRelease(rls);
+
+ CFDataRef address = CFDataCreateWithBytesNoCopy(alloc, (const UInt8*) socket->m_peer->m_addr, socket->m_peer->m_len , kCFAllocatorNull);
+ if ( !address )
+ return GSOCK_MEMERR ;
+
+ err = CFSocketConnectToAddress( socket->m_cfSocket , address, socket->m_non_blocking ? -1 : socket->m_timeout / 1000 ) ;
+ CFRelease(address);
+
+ if (err != kCFSocketSuccess)
+ {
+ if ( err == kCFSocketTimeout )
+ {
+ GSocket_close(socket);
+ socket->m_error = GSOCK_TIMEDOUT ;
+ return GSOCK_TIMEDOUT ;
+ }
+ // we don't know whether a connect in progress will be issued like this
+ if ( err != kCFSocketTimeout && socket->m_non_blocking )
+ {
+ socket->m_establishing = TRUE;
+ socket->m_error = GSOCK_WOULDBLOCK;
+ return GSOCK_WOULDBLOCK;
+ }
+
+ GSocket_close(socket);
+ socket->m_error = GSOCK_IOERR;
+ return GSOCK_IOERR;
+ }
+
+ return GSOCK_NOERROR;
+}
+
+/* Flags */
+
+/* GSocket_SetNonBlocking:
+ * Sets the socket to non-blocking mode. All IO calls will return
+ * immediately.
+ */
+void GSocket_SetNonBlocking(GSocket *socket, int non_block)
+{
+ assert(socket != NULL);
+
+// GSocket_Debug( ("GSocket_SetNonBlocking: %d\n", (int)non_block) );
+
+ socket->m_non_blocking = non_block;
+}
+
+/* GSocket_SetTimeout:
+ * Sets the timeout for blocking calls. Time is expressed in
+ * milliseconds.
+ */
+void GSocket_SetTimeout(GSocket *socket, unsigned long millisec)
+{
+ assert(socket != NULL);
+
+ socket->m_timeout = millisec;
+}
+
+/* GSocket_GetError:
+ * Returns the last error occured for this socket. Note that successful
+ * operations do not clear this back to GSOCK_NOERROR, so use it only
+ * after an error.
+ */
+GSocketError GSocket_GetError(GSocket *socket)
+{
+ assert(socket != NULL);
+
+ return socket->m_error;
+}
+
+/* Callbacks */
+
+/* GSOCK_INPUT:
+ * There is data to be read in the input buffer. If, after a read
+ * operation, there is still data available, the callback function will
+ * be called again.
+ * GSOCK_OUTPUT:
+ * The socket is available for writing. That is, the next write call
+ * won't block. This event is generated only once, when the connection is
+ * first established, and then only if a call failed with GSOCK_WOULDBLOCK,
+ * when the output buffer empties again. This means that the app should
+ * assume that it can write since the first OUTPUT event, and no more
+ * OUTPUT events will be generated unless an error occurs.
+ * GSOCK_CONNECTION:
+ * Connection succesfully established, for client sockets, or incoming
+ * client connection, for server sockets. Wait for this event (also watch
+ * out for GSOCK_LOST) after you issue a nonblocking GSocket_Connect() call.
+ * GSOCK_LOST:
+ * The connection is lost (or a connection request failed); this could
+ * be due to a failure, or due to the peer closing it gracefully.
+ */
+
+/* GSocket_SetCallback:
+ * Enables the callbacks specified by 'flags'. Note that 'flags'
+ * may be a combination of flags OR'ed toghether, so the same
+ * callback function can be made to accept different events.
+ * The callback function must have the following prototype:
+ *
+ * void function(GSocket *socket, GSocketEvent event, char *cdata)
+ */
+void GSocket_SetCallback(GSocket *socket, GSocketEventFlags flags,
+ GSocketCallback callback, char *cdata)
+{
+ int count;
+
+ assert(socket != NULL);
+
+ for (count = 0; count < GSOCK_MAX_EVENT; count++)
+ {
+ if ((flags & (1 << count)) != 0)
+ {
+ socket->m_cbacks[count] = callback;
+ socket->m_data[count] = cdata;
+ }
+ }
+}
+
+/* GSocket_UnsetCallback:
+ * Disables all callbacks specified by 'flags', which may be a
+ * combination of flags OR'ed toghether.
+ */
+void GSocket_UnsetCallback(GSocket *socket, GSocketEventFlags flags)
+{
+ int count;
+
+ assert(socket != NULL);
+
+ for (count = 0; count < GSOCK_MAX_EVENT; count++)
+ {
+ if ((flags & (1 << count)) != 0)
+ {
+ socket->m_cbacks[count] = NULL;
+ socket->m_data[count] = NULL;
+ }
+ }
+}
+
+
+#define CALL_CALLBACK(socket, event) { \
+ _GSocket_Disable(socket, event); \
+ if (socket->m_cbacks[event]) \
+ socket->m_cbacks[event](socket, event, socket->m_data[event]); \
+}
+
+void _GSocket_Install_Callback(GSocket *socket, GSocketEvent event)
+{
+ int c;
+ switch (event)
+ {
+ case GSOCK_CONNECTION:
+ if(socket->m_server)
+ c = kCFSocketReadCallBack;
+ else
+ c = kCFSocketConnectCallBack;
+ break;
+ case GSOCK_LOST:
+ case GSOCK_INPUT:
+ c = kCFSocketReadCallBack;
+ break;
+ case GSOCK_OUTPUT:
+ c = kCFSocketWriteCallBack;
+ break;
+ default:
+ c = 0;
+ }
+ CFSocketEnableCallBacks(socket->m_cfSocket, c);
+}
+
+void _GSocket_Uninstall_Callback(GSocket *socket, GSocketEvent event)
+{
+ int c;
+ switch (event)
+ {
+ case GSOCK_CONNECTION:
+ if(socket->m_server)
+ c = kCFSocketReadCallBack;
+ else
+ c = kCFSocketConnectCallBack;
+ break;
+ case GSOCK_LOST:
+ case GSOCK_INPUT:
+ c = kCFSocketReadCallBack;
+ break;
+ case GSOCK_OUTPUT:
+ c = kCFSocketWriteCallBack;
+ break;
+ default:
+ c = 0;
+ }
+ CFSocketDisableCallBacks(socket->m_cfSocket, c);
+}
+
+void _GSocket_Enable(GSocket *socket, GSocketEvent event)
+{
+ socket->m_detected &= ~(1 << event);
+ _GSocket_Install_Callback(socket, event);
+}
+
+void _GSocket_Disable(GSocket *socket, GSocketEvent event)
+{
+ socket->m_detected |= (1 << event);
+ _GSocket_Uninstall_Callback(socket, event);
+}
+
+void wxMacCFSocketCallback(CFSocketRef s, CFSocketCallBackType callbackType,
+ CFDataRef address, const void* data, void* info)
+{
+ GSocket* socket = (GSocket*)info;
+
+ switch (callbackType)
+ {
+ case kCFSocketConnectCallBack:
+ if ( data )
+ {
+ SInt32 error = *((SInt32*)data) ;
+ CALL_CALLBACK( socket , GSOCK_LOST ) ;
+ GSocket_Shutdown(socket);
+ }
+ else
+ {
+ CALL_CALLBACK( socket , GSOCK_CONNECTION ) ;
+ }
+ break;
+ case kCFSocketReadCallBack:
+ CALL_CALLBACK( socket , GSOCK_INPUT ) ;
+ break;
+ case kCFSocketWriteCallBack:
+ CALL_CALLBACK( socket , GSOCK_OUTPUT ) ;
+ break;
+ default:
+ break; /* We shouldn't get here. */
+ }
+}
+
+int GSocket_Read(GSocket *socket, char *buffer, int size)
+{
+ int ret = 0 ;
+
+ assert(socket != NULL);
+ // if ( !CFReadStreamHasBytesAvailable() )
+ ret = CFReadStreamRead( socket->m_readStream , (UInt8*) buffer , size ) ;
+
+ return ret;
+}
+
+int GSocket_Write(GSocket *socket, const char *buffer, int size)
+{
+ int ret;
+
+ assert(socket != NULL);
+ ret = CFWriteStreamWrite( socket->m_writeStream , (UInt8*) buffer , size ) ;
+ return ret;
+}
+
+GSocketEventFlags GSocket_Select(GSocket *socket, GSocketEventFlags flags)
+{
+ assert(socket != NULL);
+ return flags & socket->m_detected;
+}
+
+// ==========================================================================
+// wxSocketModule
+// ==========================================================================
+
+class wxSocketModule : public wxModule
+{
+public:
+ virtual bool OnInit()
+ {
+ // wxSocketBase will call GSocket_Init() itself when/if needed
+ return TRUE;
+ }
+
+ virtual void OnExit()
+ {
+ if ( wxSocketBase::IsInitialized() )
+ wxSocketBase::Shutdown();
+ }
+
+private:
+ DECLARE_DYNAMIC_CLASS(wxSocketModule)
+};
+
+IMPLEMENT_DYNAMIC_CLASS(wxSocketModule, wxModule)
+
+#endif
+ // wxUSE_SOCKETS
+
projects / wxWidgets.git / commitdiff
