// Purpose: Socket handler classes
// Authors: Guilhem Lavaux, Guillermo Rodriguez Garcia
// Created: April 1997
-// Updated: July 1999
-// Copyright: (C) 1999, 1998, 1997, Guilhem Lavaux
+// Copyright: (C) 1999-1997, Guilhem Lavaux
+// (C) 2000-1999, Guillermo Rodriguez Garcia
// RCS_ID: $Id$
// License: see wxWindows license
/////////////////////////////////////////////////////////////////////////////
/////////////////////////////////////////////////////////////////////////////
// wxWindows headers
/////////////////////////////////////////////////////////////////////////////
+
+#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 <stdlib.h>
-#include <string.h>
-#include <ctype.h>
+#include "wx/intl.h"
/////////////////////////////////////////////////////////////////////////////
// wxSocket headers
/////////////////////////////////////////////////////////////////////////////
+
#include "wx/sckaddr.h"
#include "wx/socket.h"
+// discard buffer
+#define MAX_DISCARD_SIZE (10 * 1024)
+
+// what to do within waits
+#define PROCESS_EVENTS() wxYield()
+
+// use wxPostEvent or not
+#define EXPERIMENTAL_USE_POST 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;
+ GSocketEventFlags 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::wxSocketBase(wxSockFlags _flags, wxSockType _type) :
wxEvtHandler(),
- m_socket(NULL), m_flags(_flags), m_type(_type),
- m_neededreq(0),
- m_lcount(0), m_timeout(600),
- m_unread(NULL), m_unrd_size(0), m_unrd_cur(0),
- m_cbk(NULL), m_cdata(NULL),
+ 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_notify_state(FALSE), m_id(-1),
- m_defering(NO_DEFER), m_error(FALSE),
- m_states()
+ 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_cbk(NULL), m_cdata(NULL)
{
}
wxSocketBase::wxSocketBase() :
wxEvtHandler(),
- m_socket(NULL), m_flags(WAITALL | SPEED), m_type(SOCK_UNINIT),
- m_neededreq(0),
- m_lcount(0), m_timeout(600),
- m_unread(NULL), m_unrd_size(0), m_unrd_cur(0),
- m_cbk(NULL), m_cdata(NULL),
+ 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_notify_state(FALSE), m_id(-1),
- m_defering(NO_DEFER), m_error(FALSE),
- m_states()
+ 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_cbk(NULL), m_cdata(NULL)
{
}
bool wxSocketBase::Close()
{
+ // Interrupt pending waits
+ InterruptAllWaits();
+
if (m_socket)
{
// Disable callbacks
// wxSocketBase basic IO operations
// --------------------------------------------------------------
-// GRG: I have made some changes to wxSocket internal event
-// system; now, all events (INPUT, OUTPUT, CONNECTION, LOST)
-// are always internally monitored; but users will only be
-// notified of these events they are interested in. So we
-// no longer have to change the event mask with SetNotify()
-// in internal functions like DeferRead, DeferWrite, and
-// the like. This solves a lot of problems.
-
-// GRG: I added m_error handling to IO operations. Now,
-// wxSocketBase::Error() correctly indicates if the last
-// operation from {Read, Write, ReadMsg, WriteMsg, Peek,
-// Unread, Discard} failed. Note that now, every function
-// that updates m_lcount, also updates m_error. While I
-// was at it, also fixed an UGLY bug in ReadMsg.
+// All IO operations {Read, Write, ReadMsg, WriteMsg, Peek,
+// Unread, Discard} update m_error and m_lcount.
+//
+// TODO: Should Connect, Accept and AcceptWith update m_error?
class _wxSocketInternalTimer: public wxTimer
{
void Notify()
{
- *m_state = m_new_val; // Change the value
+ *m_state = (int)m_new_val; // Change the value
}
};
-int wxSocketBase::DeferRead(char *buffer, wxUint32 nbytes)
+wxSocketBase& wxSocketBase::Read(char* buffer, wxUint32 nbytes)
{
- // Timer for timeout
- _wxSocketInternalTimer timer;
-
- wxASSERT(m_defering == NO_DEFER);
-
- // Set the defering mode to READ.
- m_defering = DEFER_READ;
+ // Mask read events
+ m_reading = TRUE;
- // Set the current buffer.
- m_defer_buffer = buffer;
- m_defer_nbytes = nbytes;
- m_defer_timer = &timer;
+ m_lcount = _Read(buffer, nbytes);
- timer.m_state = (int *)&m_defer_buffer;
- timer.m_new_val = 0;
-
- timer.Start(m_timeout * 1000, FALSE);
-
- // If the socket is readable, call DoDefer for the first time
- if (GSocket_Select(m_socket, GSOCK_INPUT_FLAG))
- DoDefer();
-
- // Wait for buffer completion.
- while (m_defer_buffer != NULL)
- wxYield();
-
- timer.Stop();
+ // 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);
- // Disable defering mode.
- m_defering = NO_DEFER;
- m_defer_timer = NULL;
+ // Allow read events from now on
+ m_reading = FALSE;
- // Return the number of bytes read from the socket.
- return nbytes-m_defer_nbytes;
+ return *this;
}
-wxSocketBase& wxSocketBase::Read(char* buffer, wxUint32 nbytes)
+wxUint32 wxSocketBase::_Read(char* buffer, wxUint32 nbytes)
{
+ int total;
int ret = 1;
- m_error = FALSE;
-
// we try this even if the connection has already been closed.
- m_lcount = GetPushback(buffer, nbytes, FALSE);
- nbytes -= m_lcount;
- buffer += m_lcount;
-
- if (!m_connected || !m_socket)
+ 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_socket || !m_connected || !nbytes)
+ return total;
+
+ // Possible combinations (they are checked in this order)
+ // wxSOCKET_NOWAIT
+ // wxSOCKET_WAITALL | wxSOCKET_BLOCK
+ // wxSOCKET_WAITALL
+ // wxSOCKET_BLOCK
+ // wxSOCKET_NONE
+ //
+ if (m_flags & wxSOCKET_NOWAIT)
{
- // if no data retrieved AND not connected, it is an error.
- if (!m_lcount)
- m_error = TRUE;
-
- return *this;
- }
+ GSocket_SetNonBlocking(m_socket, TRUE);
+ ret = GSocket_Read(m_socket, buffer, nbytes);
+ GSocket_SetNonBlocking(m_socket, FALSE);
- // If we have got the whole needed buffer, return immediately
- if (!nbytes)
- {
- return *this;
+ if (ret > 0)
+ total += ret;
}
-
- if (m_flags & SPEED & 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);
- m_lcount += ret;
- buffer += ret;
- nbytes -= ret;
- }
- // In case the last call was an error ...
- if (ret < 0)
- m_lcount ++;
- }
- else if (m_flags & SPEED) // SPEED && !WAITALL
- {
- ret = GSocket_Read(m_socket, buffer, nbytes);
- if (ret > 0)
- m_lcount += ret;
+ if (ret > 0)
+ {
+ total += ret;
+ buffer += ret;
+ nbytes -= ret;
+ }
+ }
}
- else // !SPEED
+ else
{
- ret = DeferRead(buffer, nbytes);
+ if ((m_flags & wxSOCKET_BLOCK) || WaitForRead())
+ {
+ ret = GSocket_Read(m_socket, buffer, nbytes);
- if (ret > 0)
- m_lcount += ret;
+ if (ret > 0)
+ total += ret;
+ }
}
- // If we have read some data, then it is not an error, even
- // when in WAITALL mode, the last low-level IO call might
- // have failed.
- if (!m_lcount)
- m_error = TRUE;
-
- return *this;
+ return total;
}
wxSocketBase& wxSocketBase::ReadMsg(char* buffer, wxUint32 nbytes)
{
-#define MAX_BUFSIZE (10 * 1024)
-
+ wxUint32 len, len2, sig, total;
+ bool error;
int old_flags;
- unsigned long len, len2, sig;
struct
{
- char sig[4];
- char len[4];
+ unsigned char sig[4];
+ unsigned char len[4];
} msg;
- // sig should be an explicit 32-bit unsigned integer; I've seen
- // compilers in which wxUint32 was actually a 16-bit unsigned integer
+ // Mask read events
+ m_reading = TRUE;
+ total = 0;
+ error = TRUE;
old_flags = m_flags;
- SetFlags(WAITALL | SPEED);
+ SetFlags((m_flags & wxSOCKET_BLOCK) | wxSOCKET_WAITALL);
- Read((char *)&msg, sizeof(msg));
- if (m_lcount != sizeof(msg))
- {
- SetFlags(old_flags);
- m_error = TRUE;
- return *this;
- }
+ if (_Read((char *)&msg, sizeof(msg)) != sizeof(msg))
+ goto exit;
- sig = msg.sig[0] & 0xff;
- sig |= (wxUint32)(msg.sig[1] & 0xff) << 8;
- sig |= (wxUint32)(msg.sig[2] & 0xff) << 16;
- sig |= (wxUint32)(msg.sig[3] & 0xff) << 24;
+ 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)
{
- wxLogDebug(_T("Warning: invalid signature returned to ReadMsg\n"));
- SetFlags(old_flags);
- m_error = TRUE;
- return *this;
+ wxLogWarning( _("TCP: invalid signature returned to ReadMsg."));
+ goto exit;
}
- len = msg.len[0] & 0xff;
- len |= (wxUint32)(msg.len[1] & 0xff) << 8;
- len |= (wxUint32)(msg.len[2] & 0xff) << 16;
- len |= (wxUint32)(msg.len[3] & 0xff) << 24;
+ len = (wxUint32)msg.len[0];
+ len |= (wxUint32)(msg.len[1] << 8);
+ 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)
{
else
len2 = 0;
- // The "len &&" in the following statements is necessary so
- // that we don't attempt to read (and possibly hang the system)
- // if the message was zero bytes long
- if (len && Read(buffer, len).LastCount() != len)
+ // This check is necessary so that we don't attemp to read if
+ // the msg was zero bytes long.
+ if (len)
{
- SetFlags(old_flags);
- m_error = TRUE;
- return *this;
+ total = _Read(buffer, len);
+
+ if (total != len)
+ goto exit;
}
if (len2)
{
- char *discard_buffer = new char[MAX_BUFSIZE];
+ 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_BUFSIZE)? MAX_BUFSIZE : len2);
- discard_len = Read(discard_buffer, discard_len).LastCount();
- len2 -= discard_len;
+ 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)
- {
- SetFlags(old_flags);
- m_error = TRUE;
- return *this;
- }
- }
- if (Read((char *)&msg, sizeof(msg)).LastCount() != sizeof(msg))
- {
- SetFlags(old_flags);
- m_error = TRUE;
- return *this;
+ goto exit;
}
+ if (_Read((char *)&msg, sizeof(msg)) != sizeof(msg))
+ goto exit;
- sig = msg.sig[0] & 0xff;
- sig |= (wxUint32)(msg.sig[1] & 0xff) << 8;
- sig |= (wxUint32)(msg.sig[2] & 0xff) << 16;
- sig |= (wxUint32)(msg.sig[3] & 0xff) << 24;
+ 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)
{
- m_error = TRUE;
- wxLogDebug(_T("Warning: invalid signature returned to ReadMsg\n"));
+ //wxLogMessage(wxT("Warning: invalid signature returned to ReadMsg"));
+ goto exit;
}
- SetFlags(old_flags);
- return *this;
+ // everything was OK
+ error = FALSE;
-#undef MAX_BUFSIZE
-}
-
-wxSocketBase& wxSocketBase::Peek(char* buffer, wxUint32 nbytes)
-{
- Read(buffer, nbytes);
- CreatePushbackAfter(buffer, nbytes);
+exit:
+ m_error = error;
+ m_lcount = total;
+ m_reading = FALSE;
+ SetFlags(old_flags);
return *this;
}
-int wxSocketBase::DeferWrite(const char *buffer, wxUint32 nbytes)
+wxSocketBase& wxSocketBase::Peek(char* buffer, wxUint32 nbytes)
{
- // Timer for timeout
- _wxSocketInternalTimer timer;
-
- wxASSERT(m_defering == NO_DEFER);
+ // Mask read events
+ m_reading = TRUE;
- m_defering = DEFER_WRITE;
+ m_lcount = _Read(buffer, nbytes);
+ Pushback(buffer, m_lcount);
- // Set the current buffer
- m_defer_buffer = (char *)buffer;
- m_defer_nbytes = nbytes;
- m_defer_timer = &timer;
+ // 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);
- // Start timer
- timer.m_state = (int *)&m_defer_buffer;
- timer.m_new_val = 0;
+ // Allow read events again
+ m_reading = FALSE;
- timer.Start(m_timeout * 1000, FALSE);
+ return *this;
+}
- // If the socket is writable, call DoDefer for the first time
- if (GSocket_Select(m_socket, GSOCK_OUTPUT_FLAG))
- DoDefer();
+wxSocketBase& wxSocketBase::Write(const char *buffer, wxUint32 nbytes)
+{
+ // Mask write events
+ m_writing = TRUE;
- // Wait for buffer completion.
- while (m_defer_buffer != NULL)
- wxYield();
+ m_lcount = _Write(buffer, nbytes);
- // Stop timer
- m_defer_timer = NULL;
- timer.Stop();
+ // 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);
- m_defering = NO_DEFER;
+ // Allow write events again
+ m_writing = FALSE;
- return nbytes-m_defer_nbytes;
+ return *this;
}
-wxSocketBase& wxSocketBase::Write(const char *buffer, wxUint32 nbytes)
+wxUint32 wxSocketBase::_Write(const char *buffer, wxUint32 nbytes)
{
+ wxUint32 total = 0;
int ret = 1;
- m_lcount = 0;
- m_error = FALSE;
-
if (!m_connected || !m_socket)
+ return 0;
+
+ // Possible combinations (they are checked in this order)
+ // wxSOCKET_NOWAIT
+ // wxSOCKET_WAITALL | wxSOCKET_BLOCK
+ // wxSOCKET_WAITALL
+ // wxSOCKET_BLOCK
+ // wxSOCKET_NONE
+ //
+ if (m_flags & wxSOCKET_NOWAIT)
{
- m_error = TRUE;
- return *this;
- }
+ GSocket_SetNonBlocking(m_socket, TRUE);
+ ret = GSocket_Write(m_socket, buffer, nbytes);
+ GSocket_SetNonBlocking(m_socket, FALSE);
- if (m_flags & SPEED & WAITALL) // SPEED && WAITALL
+ if (ret > 0)
+ total = ret;
+ }
+ 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);
- m_lcount += ret;
- buffer += ret;
- nbytes -= ret;
- }
- // In case the last call was an error ...
- if (ret < 0)
- m_lcount ++;
- }
- else if (m_flags & SPEED) // SPEED && !WAITALL
- {
- ret = GSocket_Write(m_socket, buffer, nbytes);
- if (ret > 0)
- m_lcount += ret;
+ if (ret > 0)
+ {
+ total += ret;
+ buffer += ret;
+ nbytes -= ret;
+ }
+ }
}
- else // !SPEED
+ else
{
- ret = DeferWrite(buffer, nbytes);
+ if ((m_flags & wxSOCKET_BLOCK) || WaitForWrite())
+ {
+ ret = GSocket_Write(m_socket, buffer, nbytes);
- if (ret > 0)
- m_lcount += ret;
+ if (ret > 0)
+ total = ret;
+ }
}
- // If we have written some data, then it is not an error,
- // even when in WAITALL mode, the last low-level IO call
- // might have failed.
- if (!m_lcount)
- m_error = TRUE;
-
- return *this;
+ return total;
}
wxSocketBase& wxSocketBase::WriteMsg(const char *buffer, wxUint32 nbytes)
{
+ wxUint32 total;
+ bool error;
int old_flags;
struct {
- char sig[4];
- char len[4];
+ unsigned char sig[4];
+ unsigned char len[4];
} msg;
+ // Mask write events
+ m_writing = TRUE;
+
+ error = TRUE;
+ total = 0;
+ old_flags = m_flags;
+ SetFlags((m_flags & wxSOCKET_BLOCK) | wxSOCKET_WAITALL);
+
// warning about 'cast truncates constant value'
#ifdef __VISUALC__
- #pragma warning(disable: 4310)
+# pragma warning(disable: 4310)
#endif // __VISUALC__
- msg.sig[0] = (char) 0xad;
- msg.sig[1] = (char) 0xde;
- msg.sig[2] = (char) 0xed;
- msg.sig[3] = (char) 0xfe;
+ 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] = (char) nbytes & 0xff;
- msg.len[1] = (char) (nbytes >> 8) & 0xff;
- msg.len[2] = (char) (nbytes >> 16) & 0xff;
- msg.len[3] = (char) (nbytes >> 24) & 0xff;
+ 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;
- // GRG: We need WAITALL | SPEED
- old_flags = m_flags;
- SetFlags(WAITALL | SPEED);
+ //wxLogMessage("Writemsg: %d %d %d %d -> %d",
+ // nbytes & 0xff,
+ // (nbytes >> 8) & 0xff,
+ // (nbytes >> 16) & 0xff,
+ // (nbytes >> 24) & 0xff,
+ // nbytes
+ // );
- if (Write((char *)&msg, sizeof(msg)).LastCount() < sizeof(msg))
- {
- SetFlags(old_flags);
- m_error = TRUE;
- return *this;
- }
- if (Write(buffer, nbytes).LastCount() < nbytes)
- {
- SetFlags(old_flags);
- m_error = TRUE;
- return *this;
- }
+ if (_Write((char *)&msg, sizeof(msg)) < sizeof(msg))
+ goto exit;
- msg.sig[0] = (char) 0xed;
- msg.sig[1] = (char) 0xfe;
- msg.sig[2] = (char) 0xad;
- msg.sig[3] = (char) 0xde;
+ 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((char *)&msg, sizeof(msg)).LastCount() < sizeof(msg))
- m_error = TRUE;
+ if ((_Write((char *)&msg, sizeof(msg))) < sizeof(msg))
+ goto exit;
+
+ // everything was OK
+ error = FALSE;
+
+exit:
+ m_error = error;
+ m_lcount = total;
+ m_writing = FALSE;
- SetFlags(old_flags);
return *this;
#ifdef __VISUALC__
- #pragma warning(default: 4310)
+# pragma warning(default: 4310)
#endif // __VISUALC__
}
wxSocketBase& wxSocketBase::Unread(const char *buffer, wxUint32 nbytes)
{
- m_error = FALSE;
- m_lcount = 0;
-
if (nbytes != 0)
- {
- CreatePushbackAfter(buffer, nbytes);
- m_lcount = nbytes;
- }
- return *this;
-}
+ Pushback(buffer, nbytes);
-bool wxSocketBase::IsData() const
-{
- if (!m_socket)
- return FALSE;
-
- return (GSocket_Select(m_socket, GSOCK_INPUT_FLAG));
-}
-
-// GRG: DoDefer() no longer needs to know which event occured,
-// because this was only used to catch LOST events and set
-// m_defer_buffer = NULL; this is done in OnRequest() now.
-
-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;
- break;
- }
-
- if (ret >= 0)
- m_defer_nbytes -= ret;
+ m_error = FALSE;
+ m_lcount = nbytes;
- // If we are waiting for all bytes to be acquired, keep the defering
- // mode enabled.
- if ((m_flags & WAITALL) == 0 || m_defer_nbytes == 0 || ret < 0)
- {
- m_defer_buffer = NULL;
- }
- else
- {
- m_defer_buffer += ret;
- m_defer_timer->Start(m_timeout * 1000, FALSE);
- }
+ return *this;
}
-void wxSocketBase::Discard()
+wxSocketBase& wxSocketBase::Discard()
{
-#define MAX_BUFSIZE (10*1024)
-
- char *my_data = new char[MAX_BUFSIZE];
- wxUint32 recv_size = MAX_BUFSIZE;
+ int old_flags;
+ char *my_data = new char[MAX_DISCARD_SIZE];
+ wxUint32 recv_size = MAX_DISCARD_SIZE;
wxUint32 total = 0;
- SaveState();
- SetFlags(NOWAIT); // GRG: SPEED was not needed here!
+ // Mask read events
+ m_reading = TRUE;
+
+ old_flags = m_flags;
+ SetFlags(wxSOCKET_NOWAIT);
- while (recv_size == MAX_BUFSIZE)
+ while (recv_size == MAX_DISCARD_SIZE)
{
- recv_size = Read(my_data, MAX_BUFSIZE).LastCount();
+ recv_size = _Read(my_data, MAX_DISCARD_SIZE);
total += recv_size;
}
- RestoreState();
delete [] my_data;
-
m_lcount = total;
m_error = FALSE;
-#undef MAX_BUFSIZE
+ // Allow read events again
+ m_reading = FALSE;
+
+ return *this;
}
// --------------------------------------------------------------
state = new wxSocketState();
- 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;
+ 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);
}
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);
+ 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;
// wxSocketBase Wait functions
// --------------------------------------------------------------
-// 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.
-
-bool wxSocketBase::_Wait(long seconds, long milliseconds, wxSocketEventFlags flags)
+// These WaitXXX unctions do not depend on the event system any
+// longer; 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 PROCESS_EVENTS(), so this won't block the GUI.
+//
+// XXX: Should it honour the wxSOCKET_BLOCK flag ?
+//
+bool wxSocketBase::_Wait(long seconds, long milliseconds,
+ wxSocketEventFlags flags)
{
GSocketEventFlags result;
_wxSocketInternalTimer timer;
long timeout;
int state = -1;
+ // Set this to TRUE to interrupt ongoing waits
+ m_interrupt = FALSE;
+
// Check for valid socket
- if ((!m_connected && !m_establishing) || !m_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
timeout = m_timeout * 1000;
// Activate timer
- timer.m_state = &state;
- timer.m_new_val = 0;
- timer.Start(timeout, TRUE);
+ if (timeout)
+ {
+ timer.m_state = &state;
+ timer.m_new_val = 0;
+ timer.Start((int)timeout, TRUE);
+ }
// Active polling (without using events)
- result = GSocket_Select(m_socket, flags);
-
- while ((result == 0) && (state == -1))
+ //
+ // 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.
+ //
+ // Do this at least once (important if timeout == 0, when
+ // we are just polling). Also, if just polling, do not yield.
+ //
+ while (state == -1)
{
- wxYield();
- result = GSocket_Select(m_socket, flags);
+ result = GSocket_Select(m_socket, flags | GSOCK_LOST_FLAG);
+
+ // Incoming connection (server) or connection established (client)
+ if (result & GSOCK_CONNECTION_FLAG)
+ {
+ timer.Stop();
+ m_connected = TRUE;
+ m_establishing = FALSE;
+ return TRUE;
+ }
+
+ if ((result & GSOCK_INPUT_FLAG) || (result & GSOCK_OUTPUT_FLAG))
+ {
+ timer.Stop();
+ return TRUE;
+ }
+
+ // Connection lost
+ if (result & GSOCK_LOST_FLAG)
+ {
+ timer.Stop();
+ return TRUE; // XXX: should be FALSE if !(flags & GSOCK_LOST_FLAG) !
+ }
+
+ // Wait more?
+ if ((timeout == 0) || (m_interrupt))
+ break;
+ else
+ PROCESS_EVENTS();
}
timer.Stop();
-
- return (result != 0);
+ return FALSE;
}
bool wxSocketBase::Wait(long seconds, long milliseconds)
bool wxSocketBase::WaitForRead(long seconds, long milliseconds)
{
- return _Wait(seconds, milliseconds, GSOCK_INPUT_FLAG | GSOCK_LOST_FLAG);
+ // Check pushback buffer
+ if (m_unread)
+ return TRUE;
+
+ return _Wait(seconds, milliseconds, GSOCK_INPUT_FLAG);
}
bool wxSocketBase::WaitForWrite(long seconds, long milliseconds)
{
- return _Wait(seconds, milliseconds, GSOCK_OUTPUT_FLAG | GSOCK_LOST_FLAG);
+ return _Wait(seconds, milliseconds, GSOCK_OUTPUT_FLAG);
}
bool wxSocketBase::WaitForLost(long seconds, long milliseconds)
m_timeout = seconds;
if (m_socket)
- GSocket_SetTimeout(m_socket, m_timeout);
+ GSocket_SetTimeout(m_socket, m_timeout * 1000);
}
// --------------------------------------------------------------
m_flags = _flags;
}
-wxSocketBase::wxSockFlags wxSocketBase::GetFlags() const
-{
- return m_flags;
-}
-
// --------------------------------------------------------------
// wxSocketBase callback management
// --------------------------------------------------------------
// wxSocketBase automatic notifier
// --------------------------------------------------------------
-static void LINKAGEMODE wx_socket_callback(GSocket *socket, GSocketEvent event, char *cdata)
+// 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)
{
wxSocketBase *sckobj = (wxSocketBase *)cdata;
wxSocketEvent event(m_id);
wxSocketEventFlags flag = EventToNotify(req_evt);
- switch(req_evt)
+ // dbg("Entering OnRequest (evt %d)\n", req_evt);
+
+ // This duplicates some code in _Wait(), but this doesn't
+ // hurt. It has to be here because we don't know whether
+ // WaitXXX will be used, and it has to be in _Wait as well
+ // because the event might be a bit delayed.
+ //
+ if (req_evt == wxSOCKET_CONNECTION)
{
- case wxSOCKET_CONNECTION:
- m_establishing = FALSE;
- m_connected = TRUE;
- break;
- case wxSOCKET_LOST:
- m_defer_buffer = NULL;
- Close();
- break;
- case wxSOCKET_INPUT:
- case wxSOCKET_OUTPUT:
- if (m_defer_buffer)
- {
- // GRG: DoDefer() no longer needs to know which
- // event occured, because this was only used to
- // catch LOST events and set m_defer_buffer to
- // NULL, and this is done in OnRequest() now.
- DoDefer();
- // Do not notify to user
- return;
- }
- break;
+ m_establishing = FALSE;
+ m_connected = TRUE;
+ }
+ else if (req_evt == wxSOCKET_INPUT)
+ {
+ // 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.
+ //
+ if (m_reading || !GSocket_Select(m_socket, GSOCK_INPUT_FLAG))
+ return;
+ }
+ else if (req_evt == wxSOCKET_OUTPUT)
+ {
+ if (m_writing || !GSocket_Select(m_socket, GSOCK_OUTPUT_FLAG))
+ return;
}
if (((m_neededreq & flag) == flag) && m_notify_state)
{
+ // dbg("Evt %d delivered\n", req_evt);
event.m_socket = this;
event.m_skevt = req_evt;
- ProcessEvent(event);
- OldOnNotify(req_evt);
+ if (m_evt_handler)
+#if EXPERIMENTAL_USE_POST
+ wxPostEvent(m_evt_handler, event);
+#else
+ ProcessEvent(event);
+#endif
+
+ OldOnNotify(req_evt);
if (m_cbk)
m_cbk(*this, req_evt, m_cdata);
+
}
+
+ // dbg("Exiting OnRequest (evt %d)\n", req_evt);
}
-void wxSocketBase::OldOnNotify(wxSocketNotify evt)
+void wxSocketBase::OldOnNotify(wxSocketNotify WXUNUSED(evt))
{
}
void wxSocketBase::SetEventHandler(wxEvtHandler& h_evt, int id)
{
- SetNextHandler(&h_evt);
+ m_evt_handler = &h_evt;
m_id = id;
+
+ SetNextHandler(&h_evt);
}
// --------------------------------------------------------------
-// wxSocketBase pushback library
+// wxSocketBase pushback
// --------------------------------------------------------------
-void wxSocketBase::CreatePushbackAfter(const char *buffer, wxUint32 size)
+void wxSocketBase::Pushback(const char *buffer, wxUint32 size)
{
- char *curr_pos;
-
- if (m_unread != NULL)
- m_unread = (char *) realloc(m_unread, m_unrd_size+size);
- else
- m_unread = (char *) malloc(size);
-
- curr_pos = m_unread + m_unrd_size;
+ if (!size) return;
- memcpy(curr_pos, buffer, size);
- m_unrd_size += size;
-}
-
-void wxSocketBase::CreatePushbackBefore(const char *buffer, wxUint32 size)
-{
if (m_unread == NULL)
m_unread = (char *)malloc(size);
- else {
+ else
+ {
char *tmp;
tmp = (char *)malloc(m_unrd_size + size);
if (size > (m_unrd_size-m_unrd_cur))
size = m_unrd_size-m_unrd_cur;
+
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;
}
- 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);
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);
bool wxSocketServer::WaitForAccept(long seconds, long milliseconds)
{
- return _Wait(seconds, milliseconds, GSOCK_CONNECTION_FLAG | GSOCK_LOST_FLAG);
+ return _Wait(seconds, milliseconds, GSOCK_CONNECTION_FLAG);
}
// --------------------------------------------------------------
// --------------------------------------------------------------
// wxSocketClient Connect functions
// --------------------------------------------------------------
+
bool wxSocketClient::Connect(wxSockAddress& addr_man, bool wait)
{
GSocketError err;
if (IsConnected())
Close();
- // This should never happen.
if (m_socket)
GSocket_destroy(m_socket);
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.
// When we are finished, we put the socket to blocking mode
GSocket_SetPeer(m_socket, addr_man.GetAddress());
err = GSocket_Connect(m_socket, GSOCK_STREAMED);
- GSocket_SetCallback(m_socket, GSOCK_INPUT_FLAG | GSOCK_OUTPUT_FLAG |
- GSOCK_LOST_FLAG | GSOCK_CONNECTION_FLAG,
- wx_socket_callback, (char *)this);
if (!wait)
GSocket_SetNonBlocking(m_socket, FALSE);
bool wxSocketClient::WaitOnConnect(long seconds, long milliseconds)
{
- bool ret;
-
- if (m_connected) // Already connected
+ if (m_connected) // Already connected
return TRUE;
- if (!m_establishing || !m_socket) // No connection in progress
+ if (!m_establishing || !m_socket) // No connection in progress
return FALSE;
- ret = _Wait(seconds, milliseconds, GSOCK_CONNECTION_FLAG | GSOCK_LOST_FLAG);
+ 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();
- // GRG: m_connected and m_establishing will be updated in
- // OnRequest(), but we do it here anyway because sometimes
- // the event might be a bit delayed, and if that happens,
- // when WaitOnConnect() returns, m_connected will still be
- // FALSE. We have to do it as well in OnRequest because
- // maybe WaitOnConnect() is not being used...
+ if(!m_socket)
+ return;
- if (ret)
+ // Setup the socket as non connection oriented
+ GSocket_SetLocal(m_socket, addr.GetAddress());
+ if( GSocket_SetNonOriented(m_socket) != GSOCK_NOERROR )
{
- m_connected = GSocket_Select(m_socket, GSOCK_CONNECTION_FLAG);
- m_establishing = FALSE;
+ GSocket_destroy(m_socket);
+ m_socket = NULL;
+ return;
}
- return m_connected;
+ // 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
// --------------------------------------------------------------------------
// wxSocketModule
// --------------------------------------------------------------------------
-class WXDLLEXPORT wxSocketModule: public wxModule {
+
+class WXDLLEXPORT wxSocketModule: public wxModule
+{
DECLARE_DYNAMIC_CLASS(wxSocketModule)
- public:
- bool OnInit() {
+public:
+ bool OnInit()
+ {
return GSocket_Init();
}
- void OnExit() {
+ void OnExit()
+ {
GSocket_Cleanup();
}
};
projects / wxWidgets.git / blobdiff