// Purpose: Socket handler classes
// Authors: Guilhem Lavaux, Guillermo Rodriguez Garcia
// Created: April 1997
-// Updated: September 1999
-// Copyright: (C) 1999, 1998, 1997, Guilhem Lavaux
-// (C) 1999, Guillermo Rodriguez Garcia
+// Copyright: (C) 1999-1997, Guilhem Lavaux
+// (C) 2000-1999, Guillermo Rodriguez Garcia
// RCS_ID: $Id$
// License: see wxWindows license
/////////////////////////////////////////////////////////////////////////////
#if wxUSE_SOCKETS
-/////////////////////////////////////////////////////////////////////////////
-// wxWindows headers
-/////////////////////////////////////////////////////////////////////////////
+// ==========================================================================
+// Headers and constants
+// ==========================================================================
+
+#include "wx/app.h"
#include "wx/defs.h"
#include "wx/object.h"
#include "wx/string.h"
#include "wx/utils.h"
#include "wx/module.h"
#include "wx/log.h"
+#include "wx/intl.h"
-#include <stdlib.h>
-#include <string.h>
-#include <ctype.h>
+#if wxUSE_GUI
+ #include "wx/gdicmn.h" // for wxPendingDelete
+#endif // wxUSE_GUI
-/////////////////////////////////////////////////////////////////////////////
-// wxSocket headers
-/////////////////////////////////////////////////////////////////////////////
#include "wx/sckaddr.h"
#include "wx/socket.h"
-// GRG: Why is this needed?
-#ifdef __WXGTK__
-#include <gtk/gtk.h>
-#define wxYield() gtk_main_iteration()
-#endif
+// discard buffer
+#define MAX_DISCARD_SIZE (10 * 1024)
+
+// what to do within waits
+#define PROCESS_EVENTS() wxYield()
-// --------------------------------------------------------------
+// use wxPostEvent or not
+#define USE_DELAYED_EVENTS 1
+
+// --------------------------------------------------------------------------
// ClassInfos
-// --------------------------------------------------------------
-#if !USE_SHARED_LIBRARY
+// --------------------------------------------------------------------------
+
IMPLEMENT_CLASS(wxSocketBase, wxObject)
IMPLEMENT_CLASS(wxSocketServer, wxSocketBase)
IMPLEMENT_CLASS(wxSocketClient, wxSocketBase)
+IMPLEMENT_CLASS(wxDatagramSocket, wxSocketBase)
IMPLEMENT_DYNAMIC_CLASS(wxSocketEvent, wxEvent)
-#endif
class wxSocketState : public wxObject
{
public:
- bool notify_state;
- GSocketEventFlags evt_notify_state;
- wxSocketBase::wxSockFlags socket_flags;
- wxSocketBase::wxSockCbk c_callback;
- char *c_callback_data;
+ bool m_notify_state;
+ wxSocketEventFlags m_neededreq;
+ wxSockFlags m_flags;
+ wxSocketBase::wxSockCbk m_cbk;
+ char *m_cdata;
public:
wxSocketState() : wxObject() {}
};
-// --------------------------------------------------------------
-// wxSocketBase ctor and dtor
-// --------------------------------------------------------------
-wxSocketBase::wxSocketBase(wxSocketBase::wxSockFlags _flags,
- wxSocketBase::wxSockType _type) :
+// ==========================================================================
+// wxSocketBase
+// ==========================================================================
+
+// --------------------------------------------------------------------------
+// Ctor and dtor
+// --------------------------------------------------------------------------
+
+wxSocketBase::wxSocketBase(wxSockFlags _flags, wxSockType _type) :
wxEvtHandler(),
- m_socket(NULL), m_id(-1),
+ m_socket(NULL), m_evt_handler(NULL), m_id(-1),
m_flags(_flags), m_type(_type),
m_neededreq(0), m_notify_state(FALSE),
m_connected(FALSE), m_establishing(FALSE),
m_reading(FALSE), m_writing(FALSE),
m_error(FALSE), m_lcount(0), m_timeout(600), m_states(),
m_unread(NULL), m_unrd_size(0), m_unrd_cur(0),
- m_defering(NO_DEFER), m_defer_buffer(NULL), m_defer_timer(NULL),
m_cbk(NULL), m_cdata(NULL)
{
}
wxSocketBase::wxSocketBase() :
wxEvtHandler(),
- m_socket(NULL), m_id(-1),
+ m_socket(NULL), m_evt_handler(NULL), m_id(-1),
m_flags(NONE), m_type(SOCK_UNINIT),
m_neededreq(0), m_notify_state(FALSE),
m_connected(FALSE), m_establishing(FALSE),
m_reading(FALSE), m_writing(FALSE),
m_error(FALSE), m_lcount(0), m_timeout(600), m_states(),
m_unread(NULL), m_unrd_size(0), m_unrd_cur(0),
- m_defering(NO_DEFER), m_defer_buffer(NULL), m_defer_timer(NULL),
m_cbk(NULL), m_cdata(NULL)
{
}
GSocket_destroy(m_socket);
}
-bool wxSocketBase::Close()
+/*
+bool wxSocketBase::Destroy()
{
- if (m_socket)
- {
- // Disable callbacks
- GSocket_UnsetCallback(m_socket, GSOCK_INPUT_FLAG | GSOCK_OUTPUT_FLAG |
- GSOCK_LOST_FLAG | GSOCK_CONNECTION_FLAG);
+ // Delayed destruction: the socket will be deleted during the next
+ // idle loop iteration. This ensures that all pending events have
+ // been processed.
- // Shutdown the connection
- GSocket_Shutdown(m_socket);
- m_connected = FALSE;
- m_establishing = FALSE;
- }
+ m_beingDeleted = TRUE;
+ Close();
+
+ if ( !wxPendingDelete.Member(this) )
+ wxPendingDelete.Append(this);
return TRUE;
}
+*/
-// --------------------------------------------------------------
-// wxSocketBase basic IO operations
-// --------------------------------------------------------------
+// --------------------------------------------------------------------------
+// Basic IO operations
+// --------------------------------------------------------------------------
-// All IO operations {Read, Write, ReadMsg, WriteMsg, Peek,
-// Unread, Discard} update m_error and m_lcount.
+// 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?
-class _wxSocketInternalTimer: public wxTimer
+bool wxSocketBase::Close()
{
-public:
- int *m_state;
- unsigned long m_new_val;
+ // Interrupt pending waits
+ InterruptAllWaits();
- void Notify()
+ if (m_socket)
{
- *m_state = m_new_val; // Change the value
- }
-};
-
-wxUint32 wxSocketBase::DeferRead(char *buffer, wxUint32 nbytes)
-{
- // Timer for timeout
- _wxSocketInternalTimer timer;
-
- //wxLogMessage("Entrando a DeferRead, nbytes = %d", nbytes);
- wxASSERT(m_defering == NO_DEFER);
-
- // Set the defering mode to READ.
- m_defering = DEFER_READ;
-
- // Set the current buffer.
- m_defer_buffer = buffer;
- m_defer_nbytes = nbytes;
- m_defer_timer = &timer;
-
- timer.m_state = (int *)&m_defer_buffer;
- timer.m_new_val = 0;
-
- timer.Start(m_timeout * 1000, FALSE);
+ // Disable callbacks
+ GSocket_UnsetCallback(m_socket, GSOCK_INPUT_FLAG | GSOCK_OUTPUT_FLAG |
+ GSOCK_LOST_FLAG | GSOCK_CONNECTION_FLAG);
- // If the socket is readable, call DoDefer for the first time
- if (GSocket_Select(m_socket, GSOCK_INPUT_FLAG))
- {
- //wxLogMessage("Llamando al primer DoDefer");
- DoDefer();
+ // Shutdown the connection
+ GSocket_Shutdown(m_socket);
}
- // Wait for buffer completion.
- while (m_defer_buffer != NULL)
- wxYield();
-
- timer.Stop();
-
- // Disable defering mode.
- m_defering = NO_DEFER;
- m_defer_timer = NULL;
-
- // Return the number of bytes read from the socket.
- //wxLogMessage("Saliendo de DeferRead: total: %d bytes", nbytes - m_defer_nbytes);
- return nbytes-m_defer_nbytes;
+ m_connected = FALSE;
+ m_establishing = FALSE;
+ return TRUE;
}
wxSocketBase& wxSocketBase::Read(char* buffer, wxUint32 nbytes)
m_lcount = _Read(buffer, nbytes);
- // If in WAITALL mode, all bytes should have been read.
- if (m_flags & WAITALL)
+ // 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);
- // Trigger another read event if there is still data available.
+ // Allow read events from now on
m_reading = FALSE;
- // TODO: TriggerRead
return *this;
}
int total;
int ret = 1;
- // we try this even if the connection has already been closed.
+ // Try the pushback buffer first
total = GetPushback(buffer, nbytes, FALSE);
nbytes -= total;
buffer += total;
- // If the socket is not connected, or we have got the whole
- // needed buffer, return immedately
- if (!m_connected || !m_socket || !nbytes)
+ // If the socket is invalid or we got all the data, return now
+ if (!m_socket || !nbytes)
return total;
// Possible combinations (they are checked in this order)
- // NOWAIT
- // SPEED | WAITALL
- // SPEED
- // WAITALL
- // NONE
+ // wxSOCKET_NOWAIT
+ // wxSOCKET_WAITALL | wxSOCKET_BLOCK
+ // wxSOCKET_WAITALL
+ // wxSOCKET_BLOCK
+ // wxSOCKET_NONE
//
- if (m_flags & NOWAIT) // NOWAIT
+ if (m_flags & wxSOCKET_NOWAIT)
{
GSocket_SetNonBlocking(m_socket, TRUE);
ret = GSocket_Read(m_socket, buffer, nbytes);
if (ret > 0)
total += ret;
}
- else if ((m_flags & SPEED) && (m_flags & WAITALL)) // SPEED, WAITALL
+ else if (m_flags & wxSOCKET_WAITALL)
{
while (ret > 0 && nbytes > 0)
{
+ if (!(m_flags & wxSOCKET_BLOCK) && !WaitForRead())
+ break;
+
ret = GSocket_Read(m_socket, buffer, nbytes);
- total += ret;
- buffer += ret;
- nbytes -= ret;
- }
- // In case the last call was an error ...
- if (ret < 0)
- total++;
- }
- else if (m_flags & SPEED) // SPEED, !WAITALL
- {
- ret = GSocket_Read(m_socket, buffer, nbytes);
- if (ret > 0)
- total += ret;
+ if (ret > 0)
+ {
+ total += ret;
+ buffer += ret;
+ nbytes -= ret;
+ }
+ }
}
- else // NONE or WAITALL
+ else
{
- ret = DeferRead(buffer, nbytes);
+ if ((m_flags & wxSOCKET_BLOCK) || WaitForRead())
+ {
+ ret = GSocket_Read(m_socket, buffer, nbytes);
- if (ret > 0)
- total += ret;
+ if (ret > 0)
+ total += ret;
+ }
}
return total;
wxSocketBase& wxSocketBase::ReadMsg(char* buffer, wxUint32 nbytes)
{
-#define MAX_DISCARD_SIZE (10 * 1024)
-
wxUint32 len, len2, sig, total;
bool error;
int old_flags;
total = 0;
error = TRUE;
old_flags = m_flags;
- SetFlags((m_flags & SPEED) | WAITALL);
+ SetFlags((m_flags & wxSOCKET_BLOCK) | wxSOCKET_WAITALL);
if (_Read((char *)&msg, sizeof(msg)) != sizeof(msg))
goto exit;
- sig = (wxUint32)msg.sig[0];
+ 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)
{
- wxLogMessage(_T("Warning: invalid signature returned to ReadMsg"));
+ wxLogWarning( _("wxSocket: invalid signature in ReadMsg."));
goto exit;
}
len |= (wxUint32)(msg.len[2] << 16);
len |= (wxUint32)(msg.len[3] << 24);
- //wxLogMessage("Readmsg: %d %d %d %d -> len == %d",
- // msg.len[0], msg.len[1], msg.len[2], msg.len[3], len);
-
if (len > nbytes)
{
len2 = len - nbytes;
else
len2 = 0;
- // This check is necessary so that we don't attemp to read if
- // the msg was zero bytes long.
+ // Don't attemp to read if the msg was zero bytes long.
if (len)
{
total = _Read(buffer, len);
do
{
discard_len = ((len2 > MAX_DISCARD_SIZE)? MAX_DISCARD_SIZE : len2);
- discard_len = _Read(discard_buffer, discard_len);
- len2 -= discard_len;
+ discard_len = _Read(discard_buffer, (wxUint32)discard_len);
+ len2 -= (wxUint32)discard_len;
}
while ((discard_len > 0) && len2);
if (sig != 0xdeadfeed)
{
- //wxLogMessage(_T("Warning: invalid signature returned to ReadMsg"));
+ wxLogWarning( _("wxSocket: invalid signature in ReadMsg."));
goto exit;
}
m_reading = FALSE;
SetFlags(old_flags);
- // TODO: TriggerRead
return *this;
-
-#undef MAX_DISCARD_SIZE
}
wxSocketBase& wxSocketBase::Peek(char* buffer, wxUint32 nbytes)
m_reading = TRUE;
m_lcount = _Read(buffer, nbytes);
- Pushback(buffer, nbytes);
+ Pushback(buffer, m_lcount);
- // If in WAITALL mode, all bytes should have been read.
- if (m_flags & WAITALL)
+ // 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);
- // Trigger another read event if there is still data available.
+ // Allow read events again
m_reading = FALSE;
- // TODO: TriggerRead
return *this;
}
-wxUint32 wxSocketBase::DeferWrite(const char *buffer, wxUint32 nbytes)
-{
- // Timer for timeout
- _wxSocketInternalTimer timer;
-
- wxASSERT(m_defering == NO_DEFER);
- //wxLogMessage("Entrando a DeferWrite");
-
- m_defering = DEFER_WRITE;
-
- // Set the current buffer
- m_defer_buffer = (char *)buffer;
- m_defer_nbytes = nbytes;
- m_defer_timer = &timer;
-
- // Start timer
- timer.m_state = (int *)&m_defer_buffer;
- timer.m_new_val = 0;
-
- timer.Start(m_timeout * 1000, FALSE);
-
- // If the socket is writable, call DoDefer for the first time
- if (GSocket_Select(m_socket, GSOCK_OUTPUT_FLAG))
- {
- //wxLogMessage("Llamando al primer DoDefer");
- DoDefer();
- }
-
- // Wait for buffer completion.
- while (m_defer_buffer != NULL)
- wxYield();
-
- timer.Stop();
-
- // Disable defering mode
- m_defer_timer = NULL;
- m_defering = NO_DEFER;
-
- wxString s;
- s.Printf("Saliendo de DeferWrite: total %d bytes", nbytes-m_defer_nbytes);
- //wxLogMessage(s);
-
- return nbytes-m_defer_nbytes;
-}
-
wxSocketBase& wxSocketBase::Write(const char *buffer, wxUint32 nbytes)
{
// Mask write events
m_lcount = _Write(buffer, nbytes);
- // If in WAITALL mode, all bytes should have been written.
- if (m_flags & WAITALL)
+ // 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);
- // Trigger another write event if the socket is still writable
+ // Allow write events again
m_writing = FALSE;
- // TODO: TriggerWrite
return *this;
}
wxUint32 total = 0;
int ret = 1;
- if (!m_connected || !m_socket)
+ // If the socket is invalid, return immediately
+ if (!m_socket)
return 0;
// Possible combinations (they are checked in this order)
- // NOWAIT
- // SPEED | WAITALL
- // SPEED
- // WAITALL
- // NONE
+ // wxSOCKET_NOWAIT
+ // wxSOCKET_WAITALL | wxSOCKET_BLOCK
+ // wxSOCKET_WAITALL
+ // wxSOCKET_BLOCK
+ // wxSOCKET_NONE
//
- if (m_flags & NOWAIT) // NOWAIT
+ if (m_flags & wxSOCKET_NOWAIT)
{
GSocket_SetNonBlocking(m_socket, TRUE);
ret = GSocket_Write(m_socket, buffer, nbytes);
if (ret > 0)
total = ret;
}
- else if ((m_flags & SPEED) && (m_flags & WAITALL)) // SPEED, WAITALL
+ else if (m_flags & wxSOCKET_WAITALL)
{
while (ret > 0 && nbytes > 0)
{
+ if (!(m_flags & wxSOCKET_BLOCK) && !WaitForWrite())
+ break;
+
ret = GSocket_Write(m_socket, buffer, nbytes);
- total += ret;
- buffer += ret;
- nbytes -= ret;
- }
- // In case the last call was an error ...
- if (ret < 0)
- total ++;
- }
- else if (m_flags & SPEED) // SPEED, !WAITALL
- {
- ret = GSocket_Write(m_socket, buffer, nbytes);
- if (ret > 0)
- total = ret;
+ if (ret > 0)
+ {
+ total += ret;
+ buffer += ret;
+ nbytes -= ret;
+ }
+ }
}
- else // NONE or WAITALL
+ else
{
- ret = DeferWrite(buffer, nbytes);
+ if ((m_flags & wxSOCKET_BLOCK) || WaitForWrite())
+ {
+ ret = GSocket_Write(m_socket, buffer, nbytes);
- if (ret > 0)
- total = ret;
+ if (ret > 0)
+ total = ret;
+ }
}
return total;
error = TRUE;
total = 0;
old_flags = m_flags;
- SetFlags((m_flags & SPEED) | WAITALL);
-
- // warning about 'cast truncates constant value'
-#ifdef __VISUALC__
-# pragma warning(disable: 4310)
-#endif // __VISUALC__
+ 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;
-
- //wxLogMessage("Writemsg: %d %d %d %d -> %d",
- // nbytes & 0xff,
- // (nbytes >> 8) & 0xff,
- // (nbytes >> 16) & 0xff,
- // (nbytes >> 24) & 0xff,
- // nbytes
- // );
+ 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((char *)&msg, sizeof(msg)) < sizeof(msg))
goto exit;
m_lcount = total;
m_writing = FALSE;
- // TODO: TriggerWrite
return *this;
-
-#ifdef __VISUALC__
-# pragma warning(default: 4310)
-#endif // __VISUALC__
}
wxSocketBase& wxSocketBase::Unread(const char *buffer, wxUint32 nbytes)
return *this;
}
-void wxSocketBase::DoDefer()
-{
- int ret;
-
- if (!m_defer_buffer)
- return;
-
- switch(m_defering)
- {
- case DEFER_READ:
- ret = GSocket_Read(m_socket, m_defer_buffer, m_defer_nbytes);
- break;
- case DEFER_WRITE:
- ret = GSocket_Write(m_socket, m_defer_buffer, m_defer_nbytes);
- break;
- default:
- ret = -1;
- }
-
- if (ret >= 0)
- m_defer_nbytes -= ret;
-
- // If we are waiting for all bytes to be acquired, keep the defering
- // mode enabled.
- if (!(m_flags & WAITALL) || !m_defer_nbytes || ret < 0)
- {
- m_defer_buffer = NULL;
- }
- else
- {
- m_defer_buffer += ret;
- m_defer_timer->Start(m_timeout * 1000, FALSE);
- }
-
- //wxLogMessage("DoDefer ha transferido %d bytes", ret);
-}
-
wxSocketBase& wxSocketBase::Discard()
{
-#define MAX_BUFSIZE (10*1024)
-
int old_flags;
- char *my_data = new char[MAX_BUFSIZE];
- wxUint32 recv_size = MAX_BUFSIZE;
+ char *buffer = new char[MAX_DISCARD_SIZE];
+ wxUint32 ret;
wxUint32 total = 0;
// Mask read events
m_reading = TRUE;
old_flags = m_flags;
- SetFlags(NOWAIT);
+ SetFlags(wxSOCKET_NOWAIT);
- while (recv_size == MAX_BUFSIZE)
+ do
{
- recv_size = _Read(my_data, MAX_BUFSIZE);
- total += recv_size;
+ ret = _Read(buffer, MAX_DISCARD_SIZE);
+ total += ret;
}
+ while (ret == MAX_DISCARD_SIZE);
- delete [] my_data;
+ delete[] buffer;
m_lcount = total;
- m_error = FALSE;
+ m_error = FALSE;
- // Trigger another read event if there is still data available.
+ // Allow read events again
m_reading = FALSE;
- // TODO: TriggerRead
return *this;
-
-#undef MAX_BUFSIZE
-}
-
-// --------------------------------------------------------------
-// wxSocketBase get local or peer addresses
-// --------------------------------------------------------------
-
-bool wxSocketBase::GetPeer(wxSockAddress& addr_man) const
-{
- GAddress *peer;
-
- if (!m_socket)
- return FALSE;
-
- peer = GSocket_GetPeer(m_socket);
- addr_man.SetAddress(peer);
- GAddress_destroy(peer);
-
- return TRUE;
-}
-
-bool wxSocketBase::GetLocal(wxSockAddress& addr_man) const
-{
- GAddress *local;
-
- if (!m_socket)
- return FALSE;
-
- local = GSocket_GetLocal(m_socket);
- addr_man.SetAddress(local);
- GAddress_destroy(local);
-
- return TRUE;
}
-// --------------------------------------------------------------
-// wxSocketBase save and restore socket state
-// --------------------------------------------------------------
-
-void wxSocketBase::SaveState()
-{
- wxSocketState *state;
-
- state = new wxSocketState();
+// --------------------------------------------------------------------------
+// Wait functions
+// --------------------------------------------------------------------------
- state->notify_state = m_notify_state;
- state->evt_notify_state = m_neededreq;
- state->socket_flags = m_flags;
- state->c_callback = m_cbk;
- state->c_callback_data = m_cdata;
+// 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.
- m_states.Append(state);
-}
+#if wxUSE_GUI
-void wxSocketBase::RestoreState()
+class _wxSocketInternalTimer: public wxTimer
{
- wxNode *node;
- wxSocketState *state;
-
- node = m_states.Last();
- if (!node)
- return;
-
- state = (wxSocketState *)node->Data();
-
- SetFlags(state->socket_flags);
- m_neededreq = state->evt_notify_state;
- m_cbk = state->c_callback;
- m_cdata = state->c_callback_data;
- Notify(state->notify_state);
-
- delete node;
- delete state;
-}
-
+public:
+ int *m_state;
+ unsigned long m_new_val;
-// --------------------------------------------------------------
-// wxSocketBase Wait functions
-// --------------------------------------------------------------
+ void Notify()
+ {
+ *m_state = (int)m_new_val; // Change the value
+ }
+};
-// GRG: I have completely rewritten this family of functions
-// so that they don't depend on event notifications; instead,
-// they poll the socket, using GSocket_Select(), to check for
-// the specified combination of event flags, until an event
-// occurs or until the timeout ellapses. The polling loop
-// calls wxYield(), so this won't block the GUI.
+#endif // wxUSE_GUI
-bool wxSocketBase::_Wait(long seconds, long milliseconds, wxSocketEventFlags flags)
+bool wxSocketBase::_Wait(long seconds, long milliseconds,
+ wxSocketEventFlags flags)
{
GSocketEventFlags result;
+#if wxUSE_GUI
_wxSocketInternalTimer timer;
+ wxTimerRunner runTimer(timer);
+#endif // wxUSE_GUI
+
long timeout;
int state = -1;
+ // Set this to TRUE to interrupt ongoing waits
+ m_interrupt = FALSE;
+
// Check for valid socket
if (!m_socket)
return FALSE;
- // If it is not a server, it must be connected or establishing connection
- if ((m_type != SOCK_SERVER) && (!m_connected && !m_establishing))
- return FALSE;
-
// Check for valid timeout value
if (seconds != -1)
timeout = seconds * 1000 + milliseconds;
// Activate timer
if (timeout)
{
+#if wxUSE_GUI
timer.m_state = &state;
timer.m_new_val = 0;
- timer.Start(timeout, TRUE);
+ runTimer.Start((int)timeout, TRUE);
+#endif // wxUSE_GUI
}
// Active polling (without using events)
//
// NOTE: this duplicates some of the code in OnRequest (lost
- // connection and connection establishment handling) but this
- // doesn't hurt. It has to be here because the event might
- // be a bit delayed, and it has to be in OnRequest as well
- // because maybe the WaitXXX functions are not being used.
+ // connection and connection establishment handling) but
+ // this doesn't hurt. It has to be here because the event
+ // might be a bit delayed, and it has to be in OnRequest
+ // as well because maybe the Wait functions are not being
+ // used.
//
// Do this at least once (important if timeout == 0, when
- // we are just polling)
- do
+ // we are just polling). Also, if just polling, do not yield.
+
+ while (state == -1)
{
result = GSocket_Select(m_socket, flags | GSOCK_LOST_FLAG);
- // Connection lost
- if (result & GSOCK_LOST_FLAG)
- {
- timer.Stop();
- m_defer_buffer = NULL;
- Close();
- return TRUE;
- }
-
// Incoming connection (server) or connection established (client)
if (result & GSOCK_CONNECTION_FLAG)
{
- timer.Stop();
m_connected = TRUE;
m_establishing = FALSE;
return TRUE;
}
- // If we are in the middle of a R/W operation, do not propagate
- // to users.
- if ( ((result & GSOCK_INPUT_FLAG) || (result & GSOCK_OUTPUT_FLAG))
- && (!m_writing) && (!m_reading) )
+ // Data available or output buffer ready
+ if ((result & GSOCK_INPUT_FLAG) || (result & GSOCK_OUTPUT_FLAG))
{
-/* TODO: remove this
- if (m_defer_buffer == NULL)
-*/
- {
- timer.Stop();
- return TRUE;
- }
+ return TRUE;
+ }
+
+ // Connection lost
+ if (result & GSOCK_LOST_FLAG)
+ {
+ m_connected = FALSE;
+ m_establishing = FALSE;
+ return (flags & GSOCK_LOST_FLAG);
}
- if (timeout != 0)
- wxYield();
+ // Wait more?
+ if ((timeout == 0) || (m_interrupt))
+ break;
+ else
+ PROCESS_EVENTS();
}
- while ((state == -1) && timeout);
- timer.Stop();
return FALSE;
}
bool wxSocketBase::WaitForRead(long seconds, long milliseconds)
{
- // Check pushback buffer
+ // Check pushback buffer before entering _Wait
if (m_unread)
return TRUE;
- return _Wait(seconds, milliseconds, GSOCK_INPUT_FLAG);
+ // 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_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);
+ addr_man.SetAddress(peer);
+ GAddress_destroy(peer);
+
+ return TRUE;
+}
+
+bool wxSocketBase::GetLocal(wxSockAddress& addr_man) const
+{
+ GAddress *local;
+
+ if (!m_socket)
+ return FALSE;
+
+ local = GSocket_GetLocal(m_socket);
+ addr_man.SetAddress(local);
+ GAddress_destroy(local);
+
+ return TRUE;
+}
+
+//
+// Save and restore socket state
+//
+
+void wxSocketBase::SaveState()
+{
+ wxSocketState *state;
+
+ state = new wxSocketState();
+
+ state->m_notify_state = m_notify_state;
+ state->m_neededreq = m_neededreq;
+ state->m_flags = m_flags;
+ state->m_cbk = m_cbk;
+ state->m_cdata = m_cdata;
+
+ m_states.Append(state);
+}
+
+void wxSocketBase::RestoreState()
+{
+ wxNode *node;
+ wxSocketState *state;
+
+ node = m_states.Last();
+ if (!node)
+ return;
+
+ state = (wxSocketState *)node->Data();
+
+ SetFlags(state->m_flags);
+ m_cbk = state->m_cbk;
+ m_cdata = state->m_cdata;
+ m_neededreq = state->m_neededreq;
+ Notify(state->m_notify_state);
+
+ delete node;
+ delete state;
+}
+
+//
+// Timeout and flags
+//
+
void wxSocketBase::SetTimeout(long seconds)
{
m_timeout = seconds;
if (m_socket)
- GSocket_SetTimeout(m_socket, m_timeout);
+ GSocket_SetTimeout(m_socket, m_timeout * 1000);
}
-// --------------------------------------------------------------
-// wxSocketBase flags
-// --------------------------------------------------------------
-
void wxSocketBase::SetFlags(wxSockFlags _flags)
{
m_flags = _flags;
}
-
-// --------------------------------------------------------------
-// wxSocketBase callback management
-// --------------------------------------------------------------
+
+// --------------------------------------------------------------------------
+// Callbacks (now obsolete - use events instead)
+// --------------------------------------------------------------------------
wxSocketBase::wxSockCbk wxSocketBase::Callback(wxSockCbk cbk_)
{
return old_data;
}
-// --------------------------------------------------------------
-// wxSocketBase automatic notifier
-// --------------------------------------------------------------
+// --------------------------------------------------------------------------
+// Event system
+// --------------------------------------------------------------------------
// All events (INPUT, OUTPUT, CONNECTION, LOST) are now always
// internally watched; but users will only be notified of those
// events they are interested in.
static void LINKAGEMODE wx_socket_callback(GSocket * WXUNUSED(socket),
- GSocketEvent event, char *cdata)
+ GSocketEvent event,
+ char *cdata)
{
wxSocketBase *sckobj = (wxSocketBase *)cdata;
wxSocketEvent event(m_id);
wxSocketEventFlags flag = EventToNotify(req_evt);
- // fprintf(stderr, "%s: Entering OnRequest (evt %d)\n", (m_type == SOCK_CLIENT)? "client" : "server", req_evt);
+ // This duplicates some code in _Wait, but this doesn't
+ // hurt. It has to be here because we don't know whether
+ // the Wait functions will be used, and it has to be in
+ // _Wait as well because the event might be a bit delayed.
- // NOTE: this duplicates some of the code in _Wait (lost
- // connection and connection establishment handling) but
- // this doesn't hurt. It has to be here because maybe the
- // WaitXXX are not being used, and it has to be in _Wait
- // as well because the event might be a bit delayed.
- //
switch(req_evt)
{
case wxSOCKET_CONNECTION:
m_establishing = FALSE;
m_connected = TRUE;
break;
- case wxSOCKET_LOST:
- m_defer_buffer = NULL;
- Close();
- 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_defer_buffer)
- {
- // fprintf(stderr, "%s: Habia buffer, evt %d skipped\n", (m_type == SOCK_CLIENT)? "client" : "server", req_evt);
- DoDefer();
- // Do not notify to user
+ if (m_writing || !GSocket_Select(m_socket, GSOCK_OUTPUT_FLAG))
return;
- }
break;
- }
- // If we are in the middle of a R/W operation, do not
- // propagate events to users.
- if (((req_evt == wxSOCKET_INPUT) && m_reading) ||
- ((req_evt == wxSOCKET_OUTPUT) && m_writing))
- {
- // fprintf(stderr, "%s: Swallowed evt %d\n", (m_type == SOCK_CLIENT)? "client" : "server", req_evt);
- return;
+ case wxSOCKET_LOST:
+ m_connected = FALSE;
+ m_establishing = FALSE;
+ break;
+
+ default:
+ break;
}
if (((m_neededreq & flag) == flag) && m_notify_state)
{
- // fprintf(stderr, "%s: Evt %d delivered\n", (m_type == SOCK_CLIENT)? "client" : "server", req_evt);
event.m_socket = this;
event.m_skevt = req_evt;
- ProcessEvent(event);
- OldOnNotify(req_evt);
+ if (m_evt_handler)
+ {
+#if USE_DELAYED_EVENTS
+ wxPostEvent(m_evt_handler, event);
+#else
+ ProcessEvent(event);
+#endif
+ }
+
+ OldOnNotify(req_evt);
if (m_cbk)
m_cbk(*this, req_evt, m_cdata);
}
-
- // fprintf(stderr, "%s: Exiting OnRequest (evt %d)\n", (m_type == SOCK_CLIENT)? "client" : "server", req_evt);
}
void wxSocketBase::OldOnNotify(wxSocketNotify WXUNUSED(evt))
{
}
-// --------------------------------------------------------------
-// wxSocketBase set event handler
-// --------------------------------------------------------------
-
void wxSocketBase::SetEventHandler(wxEvtHandler& h_evt, int id)
{
- SetNextHandler(&h_evt);
+ m_evt_handler = &h_evt;
m_id = id;
+
+ SetNextHandler(&h_evt);
}
-// --------------------------------------------------------------
-// wxSocketBase pushback
-// --------------------------------------------------------------
+// --------------------------------------------------------------------------
+// Pushback buffer
+// --------------------------------------------------------------------------
void wxSocketBase::Pushback(const char *buffer, wxUint32 size)
{
+ if (!size) return;
+
if (m_unread == NULL)
m_unread = (char *)malloc(size);
- else {
+ else
+ {
char *tmp;
tmp = (char *)malloc(m_unrd_size + size);
memcpy(buffer, (m_unread+m_unrd_cur), size);
- if (!peek) {
+ if (!peek)
+ {
m_unrd_cur += size;
- if (m_unrd_size == m_unrd_cur) {
+ if (m_unrd_size == m_unrd_cur)
+ {
free(m_unread);
m_unread = NULL;
m_unrd_size = 0;
return size;
}
-// --------------------------------------------------------------
+// ==========================================================================
// wxSocketServer
-// --------------------------------------------------------------
+// ==========================================================================
-// --------------------------------------------------------------
-// wxSocketServer ctor and dtor
-// --------------------------------------------------------------
+// --------------------------------------------------------------------------
+// Ctor
+// --------------------------------------------------------------------------
wxSocketServer::wxSocketServer(wxSockAddress& addr_man,
- wxSockFlags flags) :
- wxSocketBase(flags, SOCK_SERVER)
+ wxSockFlags flags)
+ : wxSocketBase(flags, SOCK_SERVER)
{
// Create the socket
m_socket = GSocket_new();
return;
}
- GSocket_SetTimeout(m_socket, m_timeout);
+ 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);
}
-// --------------------------------------------------------------
-// wxSocketServer Accept
-// --------------------------------------------------------------
+// --------------------------------------------------------------------------
+// Accept
+// --------------------------------------------------------------------------
bool wxSocketServer::AcceptWith(wxSocketBase& sock, bool wait)
{
if (!m_socket)
return FALSE;
- // GRG: If wait == FALSE, then the call should be nonblocking.
+ // 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, FALSE);
- // GRG: this was not being handled!
- if (child_socket == NULL)
+ if (!child_socket)
return FALSE;
sock.m_type = SOCK_INTERNAL;
sock.m_socket = child_socket;
sock.m_connected = TRUE;
- GSocket_SetTimeout(sock.m_socket, sock.m_timeout);
+ 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);
return _Wait(seconds, milliseconds, GSOCK_CONNECTION_FLAG);
}
-// --------------------------------------------------------------
+// ==========================================================================
// wxSocketClient
-// --------------------------------------------------------------
+// ==========================================================================
-// --------------------------------------------------------------
-// wxSocketClient ctor and dtor
-// --------------------------------------------------------------
+// --------------------------------------------------------------------------
+// Ctor and dtor
+// --------------------------------------------------------------------------
-wxSocketClient::wxSocketClient(wxSockFlags _flags) :
- wxSocketBase(_flags, SOCK_CLIENT)
+wxSocketClient::wxSocketClient(wxSockFlags _flags)
+ : wxSocketBase(_flags, SOCK_CLIENT)
{
}
+// XXX: What is this for ?
wxSocketClient::~wxSocketClient()
{
}
-// --------------------------------------------------------------
-// wxSocketClient Connect functions
-// --------------------------------------------------------------
+// --------------------------------------------------------------------------
+// Connect
+// --------------------------------------------------------------------------
+
bool wxSocketClient::Connect(wxSockAddress& addr_man, bool wait)
{
GSocketError err;
- if (IsConnected())
- Close();
-
- // This should never happen.
if (m_socket)
+ {
+ // Shutdown and destroy the socket
+ Close();
GSocket_destroy(m_socket);
+ }
- // Initialize all socket stuff ...
m_socket = GSocket_new();
m_connected = FALSE;
m_establishing = FALSE;
if (!m_socket)
return FALSE;
- GSocket_SetTimeout(m_socket, m_timeout);
+ 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);
- // GRG: If wait == FALSE, then the call should be nonblocking.
+ // If wait == FALSE, then the call should be nonblocking.
// When we are finished, we put the socket to blocking mode
// again.
return _Wait(seconds, milliseconds, GSOCK_CONNECTION_FLAG);
}
-// --------------------------------------------------------------
+// ==========================================================================
+// wxDatagramSocket
+// ==========================================================================
+
+/* NOTE: experimental stuff - might change */
+
+wxDatagramSocket::wxDatagramSocket( wxSockAddress& addr, wxSockFlags flags )
+ : wxSocketBase( flags, SOCK_DATAGRAM )
+{
+ // 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 );
+
+}
+
+wxDatagramSocket& wxDatagramSocket::RecvFrom( wxSockAddress& addr,
+ char* buf,
+ wxUint32 nBytes )
+{
+ Read(buf, nBytes);
+ GetPeer(addr);
+ return (*this);
+}
+
+wxDatagramSocket& wxDatagramSocket::SendTo( wxSockAddress& addr,
+ const char* buf,
+ wxUint32 nBytes )
+{
+ GSocket_SetPeer(m_socket, addr.GetAddress());
+ Write(buf, nBytes);
+ return (*this);
+}
+
+// ==========================================================================
// wxSocketEvent
-// --------------------------------------------------------------
+// ==========================================================================
+
+// XXX: Should be moved to event.cpp ?
wxSocketEvent::wxSocketEvent(int id)
- : wxEvent(id)
+ : wxEvent(id)
{
wxEventType type = (wxEventType)wxEVT_SOCKET;
event->m_socket = m_socket;
}
-// --------------------------------------------------------------------------
+// ==========================================================================
// wxSocketModule
-// --------------------------------------------------------------------------
-class WXDLLEXPORT wxSocketModule: public wxModule {
+// ==========================================================================
+
+class WXDLLEXPORT wxSocketModule: public wxModule
+{
DECLARE_DYNAMIC_CLASS(wxSocketModule)
- public:
- bool OnInit() {
- return GSocket_Init();
- }
- void OnExit() {
- GSocket_Cleanup();
- }
+
+public:
+ bool OnInit() { return GSocket_Init(); }
+ void OnExit() { GSocket_Cleanup(); }
};
IMPLEMENT_DYNAMIC_CLASS(wxSocketModule, wxModule)
projects / wxWidgets.git / blobdiff