// Copyright: (C) 1999-1997, Guilhem Lavaux
// (C) 2000-1999, Guillermo Rodriguez Garcia
// RCS_ID: $Id$
-// License: see wxWindows license
+// License: see wxWindows licence
/////////////////////////////////////////////////////////////////////////////
-#ifdef __GNUG__
-#pragma implementation "socket.h"
-#endif
+// ==========================================================================
+// Declarations
+// ==========================================================================
// For compilers that support precompilation, includes "wx.h".
#include "wx/wxprec.h"
#if wxUSE_SOCKETS
-// ==========================================================================
-// Headers and constants
-// ==========================================================================
-
#include "wx/app.h"
+#include "wx/apptrait.h"
#include "wx/defs.h"
#include "wx/object.h"
#include "wx/string.h"
#include "wx/module.h"
#include "wx/log.h"
#include "wx/intl.h"
-
-#if wxUSE_GUI
- #include "wx/gdicmn.h" // for wxPendingDelete
-#endif // wxUSE_GUI
+#include "wx/event.h"
#include "wx/sckaddr.h"
#include "wx/socket.h"
+#include "wx/stopwatch.h"
+
+// DLL options compatibility check:
+#include "wx/build.h"
+WX_CHECK_BUILD_OPTIONS("wxNet")
+// --------------------------------------------------------------------------
+// macros and constants
+// --------------------------------------------------------------------------
// discard buffer
#define MAX_DISCARD_SIZE (10 * 1024)
-// what to do within waits
-#define PROCESS_EVENTS() wxYield()
+// 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 wxWidgets) 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
-// use wxPostEvent or not
-#define USE_DELAYED_EVENTS 1
+#define wxTRACE_Socket _T("wxSocket")
// --------------------------------------------------------------------------
-// ClassInfos
+// wxWin macros
// --------------------------------------------------------------------------
IMPLEMENT_CLASS(wxSocketBase, wxObject)
IMPLEMENT_CLASS(wxDatagramSocket, wxSocketBase)
IMPLEMENT_DYNAMIC_CLASS(wxSocketEvent, wxEvent)
+// --------------------------------------------------------------------------
+// private classes
+// --------------------------------------------------------------------------
+
class wxSocketState : public wxObject
{
public:
- bool m_notify_state;
- wxSocketEventFlags m_neededreq;
- wxSockFlags m_flags;
- wxSocketBase::wxSockCbk m_cbk;
- char *m_cdata;
+ wxSocketFlags m_flags;
+ wxSocketEventFlags m_eventmask;
+ bool m_notify;
+ void *m_clientData;
public:
wxSocketState() : wxObject() {}
-};
+ DECLARE_NO_COPY_CLASS(wxSocketState)
+};
// ==========================================================================
// 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++ )
+ {
+ /*
+ Details: Initialize() creates a hidden window as a sink for socket
+ events, such as 'read completed'. wxMSW has only one message loop
+ for the main thread. If Initialize is called in a secondary thread,
+ the socket window will be created for the secondary thread, but
+ since there is no message loop on this thread, it will never
+ receive events and all socket operations will time out.
+ BTW, the main thread must not be stopped using sleep or block
+ on a semaphore (a bad idea in any case) or socket operations
+ will time out.
+
+ On the Mac side, Initialize() stores a pointer to the CFRunLoop for
+ the main thread. Because secondary threads do not have run loops,
+ adding event notifications to the "Current" loop would have no
+ effect at all, events would never fire.
+ */
+ wxASSERT_MSG( wxIsMainThread(),
+ wxT("Call wxSocketBase::Initialize() from the main thread first!"));
+
+ wxAppTraits *traits = wxAppConsole::GetInstance() ?
+ wxAppConsole::GetInstance()->GetTraits() : NULL;
+ GSocketGUIFunctionsTable *functions =
+ traits ? traits->GetSocketGUIFunctionsTable() : NULL;
+ GSocket_SetGUIFunctions(functions);
+
+ if ( !GSocket_Init() )
+ {
+ m_countInit--;
+
+ return false;
+ }
+ }
+
+ return true;
+}
+
+void wxSocketBase::Shutdown()
+{
+ // we should be initialized
+ wxASSERT_MSG( m_countInit, _T("extra call to Shutdown()") );
+ if ( !--m_countInit )
+ {
+ GSocket_Cleanup();
+ }
+}
+
// --------------------------------------------------------------------------
// Ctor and dtor
// --------------------------------------------------------------------------
-wxSocketBase::wxSocketBase(wxSockFlags _flags, wxSockType _type) :
- wxEvtHandler(),
- 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_beingDeleted(FALSE),
- m_unread(NULL), m_unrd_size(0), m_unrd_cur(0),
- m_cbk(NULL), m_cdata(NULL)
+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 = wxID_ANY;
+ 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() :
- wxEvtHandler(),
- 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_beingDeleted(FALSE),
- m_unread(NULL), m_unrd_size(0), m_unrd_cur(0),
- m_cbk(NULL), m_cdata(NULL)
+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.
-#if wxUSE_GUI
- wxPendingDelete.DeleteObject(this);
-#endif
+ wxAppTraits *traits = wxTheApp ? wxTheApp->GetTraits() : NULL;
+ if ( traits )
+ traits->RemoveFromPendingDelete(this);
// Shutdown and close the socket
if (!m_beingDeleted)
// Destroy the GSocket object
if (m_socket)
- GSocket_destroy(m_socket);
+ delete m_socket;
// Free the pushback buffer
if (m_unread)
// 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;
+ m_beingDeleted = true;
// Shutdown and close the socket
Close();
-#if wxUSE_GUI
- if ( wxPendingDelete.Member(this) )
- wxPendingDelete.Append(this);
-#else
- delete this;
-#endif
+ // Supress events from now on
+ Notify(false);
- return TRUE;
-}
+ // 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 operations
+// Basic IO calls
// --------------------------------------------------------------------------
// The following IO operations update m_error and m_lcount:
bool wxSocketBase::Close()
{
// Interrupt pending waits
- InterruptAllWaits();
+ InterruptWait();
if (m_socket)
{
// Disable callbacks
- GSocket_UnsetCallback(m_socket, GSOCK_INPUT_FLAG | GSOCK_OUTPUT_FLAG |
+ m_socket->UnsetCallback(GSOCK_INPUT_FLAG | GSOCK_OUTPUT_FLAG |
GSOCK_LOST_FLAG | GSOCK_CONNECTION_FLAG);
// Shutdown the connection
- GSocket_Shutdown(m_socket);
+ m_socket->Shutdown();
}
- m_connected = FALSE;
- m_establishing = FALSE;
- return TRUE;
+ m_connected = false;
+ m_establishing = false;
+ return true;
}
-wxSocketBase& wxSocketBase::Read(char* buffer, wxUint32 nbytes)
+wxSocketBase& wxSocketBase::Read(void* buffer, wxUint32 nbytes)
{
// Mask read events
- m_reading = TRUE;
+ m_reading = true;
m_lcount = _Read(buffer, nbytes);
m_error = (m_lcount == 0);
// Allow read events from now on
- m_reading = FALSE;
+ m_reading = false;
return *this;
}
-wxUint32 wxSocketBase::_Read(char* buffer, wxUint32 nbytes)
+wxUint32 wxSocketBase::_Read(void* buffer, wxUint32 nbytes)
{
int total;
- int ret = 1;
// Try the pushback buffer first
- total = GetPushback(buffer, nbytes, FALSE);
+ total = GetPushback(buffer, nbytes, false);
nbytes -= total;
- buffer += total;
-
- // If the socket is invalid or we got all the data, return now
- if (!m_socket || !nbytes)
+ 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 | wxSOCKET_BLOCK
- // wxSOCKET_WAITALL
+ // wxSOCKET_WAITALL (with or without wxSOCKET_BLOCK)
// wxSOCKET_BLOCK
// wxSOCKET_NONE
//
+ int ret;
if (m_flags & wxSOCKET_NOWAIT)
{
- GSocket_SetNonBlocking(m_socket, TRUE);
- ret = GSocket_Read(m_socket, buffer, nbytes);
- GSocket_SetNonBlocking(m_socket, FALSE);
+ m_socket->SetNonBlocking(1);
+ ret = m_socket->Read((char *)buffer, nbytes);
+ m_socket->SetNonBlocking(0);
if (ret > 0)
total += ret;
}
- else if (m_flags & wxSOCKET_WAITALL)
+ else
{
- while (ret > 0 && nbytes > 0)
+ bool more = true;
+
+ while (more)
{
- if (!(m_flags & wxSOCKET_BLOCK) && !WaitForRead())
- break;
+ if ( !(m_flags & wxSOCKET_BLOCK) && !WaitForRead() )
+ break;
- ret = GSocket_Read(m_socket, buffer, nbytes);
+ ret = m_socket->Read((char *)buffer, nbytes);
if (ret > 0)
{
total += ret;
- buffer += ret;
nbytes -= ret;
+ buffer = (char *)buffer + ret;
}
- }
- }
- else
- {
- if ((m_flags & wxSOCKET_BLOCK) || WaitForRead())
- {
- ret = GSocket_Read(m_socket, buffer, nbytes);
- if (ret > 0)
- total += 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(char* buffer, wxUint32 nbytes)
+wxSocketBase& wxSocketBase::ReadMsg(void* buffer, wxUint32 nbytes)
{
wxUint32 len, len2, sig, total;
bool error;
} msg;
// Mask read events
- m_reading = TRUE;
+ m_reading = true;
total = 0;
- error = TRUE;
+ error = true;
old_flags = m_flags;
SetFlags((m_flags & wxSOCKET_BLOCK) | wxSOCKET_WAITALL);
- if (_Read((char *)&msg, sizeof(msg)) != sizeof(msg))
+ if (_Read(&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)
{
- wxLogWarning( _("wxSocket: invalid signature in ReadMsg."));
+ wxLogWarning(_("wxSocket: invalid signature in ReadMsg."));
goto exit;
}
if (len2 != 0)
goto exit;
}
- if (_Read((char *)&msg, sizeof(msg)) != sizeof(msg))
+ if (_Read(&msg, sizeof(msg)) != sizeof(msg))
goto exit;
sig = (wxUint32)msg.sig[0];
if (sig != 0xdeadfeed)
{
- wxLogWarning( _("wxSocket: invalid signature in ReadMsg."));
+ wxLogWarning(_("wxSocket: invalid signature in ReadMsg."));
goto exit;
}
// everything was OK
- error = FALSE;
+ error = false;
exit:
m_error = error;
m_lcount = total;
- m_reading = FALSE;
+ m_reading = false;
SetFlags(old_flags);
return *this;
}
-wxSocketBase& wxSocketBase::Peek(char* buffer, wxUint32 nbytes)
+wxSocketBase& wxSocketBase::Peek(void* buffer, wxUint32 nbytes)
{
// Mask read events
- m_reading = TRUE;
+ m_reading = true;
m_lcount = _Read(buffer, nbytes);
Pushback(buffer, m_lcount);
m_error = (m_lcount == 0);
// Allow read events again
- m_reading = FALSE;
+ m_reading = false;
return *this;
}
-wxSocketBase& wxSocketBase::Write(const char *buffer, wxUint32 nbytes)
+wxSocketBase& wxSocketBase::Write(const void *buffer, wxUint32 nbytes)
{
// Mask write events
- m_writing = TRUE;
+ m_writing = true;
m_lcount = _Write(buffer, nbytes);
m_error = (m_lcount == 0);
// Allow write events again
- m_writing = FALSE;
+ m_writing = false;
return *this;
}
-wxUint32 wxSocketBase::_Write(const char *buffer, wxUint32 nbytes)
+wxUint32 wxSocketBase::_Write(const void *buffer, wxUint32 nbytes)
{
wxUint32 total = 0;
- int ret = 1;
- // If the socket is invalid, return immediately
- if (!m_socket)
+ // 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 | wxSOCKET_BLOCK
- // wxSOCKET_WAITALL
+ // wxSOCKET_WAITALL (with or without wxSOCKET_BLOCK)
// wxSOCKET_BLOCK
// wxSOCKET_NONE
//
+ int ret;
if (m_flags & wxSOCKET_NOWAIT)
{
- GSocket_SetNonBlocking(m_socket, TRUE);
- ret = GSocket_Write(m_socket, buffer, nbytes);
- GSocket_SetNonBlocking(m_socket, FALSE);
+ m_socket->SetNonBlocking(1);
+ ret = m_socket->Write((const char *)buffer, nbytes);
+ m_socket->SetNonBlocking(0);
if (ret > 0)
total = ret;
}
- else if (m_flags & wxSOCKET_WAITALL)
+ else
{
- while (ret > 0 && nbytes > 0)
+ bool more = true;
+
+ while (more)
{
- if (!(m_flags & wxSOCKET_BLOCK) && !WaitForWrite())
- break;
+ if ( !(m_flags & wxSOCKET_BLOCK) && !WaitForWrite() )
+ break;
- ret = GSocket_Write(m_socket, buffer, nbytes);
+ ret = m_socket->Write((const char *)buffer, nbytes);
if (ret > 0)
{
total += ret;
- buffer += ret;
nbytes -= ret;
+ buffer = (const char *)buffer + ret;
}
- }
- }
- else
- {
- if ((m_flags & wxSOCKET_BLOCK) || WaitForWrite())
- {
- ret = GSocket_Write(m_socket, buffer, nbytes);
- if (ret > 0)
- total = 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 char *buffer, wxUint32 nbytes)
+wxSocketBase& wxSocketBase::WriteMsg(const void *buffer, wxUint32 nbytes)
{
wxUint32 total;
bool error;
- int old_flags;
- struct {
+ struct
+ {
unsigned char sig[4];
unsigned char len[4];
} msg;
// Mask write events
- m_writing = TRUE;
+ m_writing = true;
- error = TRUE;
+ error = true;
total = 0;
- old_flags = m_flags;
SetFlags((m_flags & wxSOCKET_BLOCK) | wxSOCKET_WAITALL);
msg.sig[0] = (unsigned char) 0xad;
msg.len[2] = (unsigned char) ((nbytes >> 16) & 0xff);
msg.len[3] = (unsigned char) ((nbytes >> 24) & 0xff);
- if (_Write((char *)&msg, sizeof(msg)) < sizeof(msg))
+ if (_Write(&msg, sizeof(msg)) < sizeof(msg))
goto exit;
total = _Write(buffer, nbytes);
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))) < sizeof(msg))
+ if ((_Write(&msg, sizeof(msg))) < sizeof(msg))
goto exit;
// everything was OK
- error = FALSE;
+ error = false;
exit:
m_error = error;
m_lcount = total;
- m_writing = FALSE;
+ m_writing = false;
return *this;
}
-wxSocketBase& wxSocketBase::Unread(const char *buffer, wxUint32 nbytes)
+wxSocketBase& wxSocketBase::Unread(const void *buffer, wxUint32 nbytes)
{
if (nbytes != 0)
Pushback(buffer, nbytes);
- m_error = FALSE;
+ m_error = false;
m_lcount = nbytes;
return *this;
wxSocketBase& wxSocketBase::Discard()
{
- int old_flags;
char *buffer = new char[MAX_DISCARD_SIZE];
wxUint32 ret;
wxUint32 total = 0;
// Mask read events
- m_reading = TRUE;
+ m_reading = true;
- old_flags = m_flags;
SetFlags(wxSOCKET_NOWAIT);
do
delete[] buffer;
m_lcount = total;
- m_error = FALSE;
+ m_error = false;
// Allow read events again
- m_reading = FALSE;
+ m_reading = false;
return *this;
}
// timeout elapses. The polling loop calls PROCESS_EVENTS(), so
// this won't block the GUI.
-#if wxUSE_GUI
-
-class _wxSocketInternalTimer: public wxTimer
-{
-public:
- int *m_state;
- unsigned long m_new_val;
-
- void Notify()
- {
- *m_state = (int)m_new_val; // Change the value
- }
-};
-
-#endif // wxUSE_GUI
-
-bool wxSocketBase::_Wait(long seconds, long milliseconds,
+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;
+ // Set this to true to interrupt ongoing waits
+ m_interrupt = false;
// Check for valid socket
if (!m_socket)
- return FALSE;
+ return false;
- // Check for valid timeout value
+ // Check for valid timeout value.
if (seconds != -1)
timeout = seconds * 1000 + milliseconds;
else
timeout = m_timeout * 1000;
- // Activate timer
- if (timeout)
- {
-#if wxUSE_GUI
- timer.m_state = &state;
- timer.m_new_val = 0;
- runTimer.Start((int)timeout, TRUE);
-#endif // wxUSE_GUI
- }
+#if !defined(wxUSE_GUI) || !wxUSE_GUI
+ m_socket->SetTimeout(timeout);
+#endif
- // Active polling (without using events)
+ // Wait in an active polling loop.
//
- // 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 Wait functions are not being
- // used.
+ // 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.
- while (state == -1)
+ wxStopWatch chrono;
+ bool done = false;
+
+ while (!done)
{
- result = GSocket_Select(m_socket, flags | GSOCK_LOST_FLAG);
+ result = m_socket->Select(flags | GSOCK_LOST_FLAG);
// Incoming connection (server) or connection established (client)
if (result & GSOCK_CONNECTION_FLAG)
{
- m_connected = TRUE;
- m_establishing = FALSE;
- return TRUE;
+ 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;
+ return true;
}
// Connection lost
if (result & GSOCK_LOST_FLAG)
{
- m_connected = FALSE;
- m_establishing = FALSE;
- return (flags & GSOCK_LOST_FLAG);
+ m_connected = false;
+ m_establishing = false;
+ return (flags & GSOCK_LOST_FLAG) != 0;
}
// Wait more?
- if ((timeout == 0) || (m_interrupt))
- break;
+ if ((!timeout) || (chrono.Time() > timeout) || (m_interrupt))
+ done = true;
else
PROCESS_EVENTS();
}
- return FALSE;
+ return false;
}
bool wxSocketBase::Wait(long seconds, long milliseconds)
{
// Check pushback buffer before entering _Wait
if (m_unread)
- return TRUE;
+ 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
+ // _Wait because 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);
GAddress *peer;
if (!m_socket)
- return FALSE;
+ return false;
+
+ peer = m_socket->GetPeer();
+
+ // copying a null address would just trigger an assert anyway
+
+ if (!peer)
+ return false;
- peer = GSocket_GetPeer(m_socket);
addr_man.SetAddress(peer);
GAddress_destroy(peer);
- return TRUE;
+ return true;
}
bool wxSocketBase::GetLocal(wxSockAddress& addr_man) const
GAddress *local;
if (!m_socket)
- return FALSE;
+ return false;
- local = GSocket_GetLocal(m_socket);
+ local = m_socket->GetLocal();
addr_man.SetAddress(local);
GAddress_destroy(local);
- return TRUE;
+ return true;
}
//
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;
+ 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()
{
- wxNode *node;
+ wxList::compatibility_iterator node;
wxSocketState *state;
- node = m_states.Last();
+ node = m_states.GetLast();
if (!node)
return;
- state = (wxSocketState *)node->Data();
+ state = (wxSocketState *)node->GetData();
- SetFlags(state->m_flags);
- m_cbk = state->m_cbk;
- m_cdata = state->m_cdata;
- m_neededreq = state->m_neededreq;
- Notify(state->m_notify_state);
+ m_flags = state->m_flags;
+ m_notify = state->m_notify;
+ m_eventmask = state->m_eventmask;
+ m_clientData = state->m_clientData;
- delete node;
+ m_states.Erase(node);
delete state;
}
m_timeout = seconds;
if (m_socket)
- GSocket_SetTimeout(m_socket, m_timeout * 1000);
+ m_socket->SetTimeout(m_timeout * 1000);
}
-void wxSocketBase::SetFlags(wxSockFlags _flags)
+void wxSocketBase::SetFlags(wxSocketFlags flags)
{
- m_flags = _flags;
+ m_flags = flags;
}
-// --------------------------------------------------------------------------
-// Callbacks (now obsolete - use events instead)
-// --------------------------------------------------------------------------
-
-wxSocketBase::wxSockCbk wxSocketBase::Callback(wxSockCbk cbk_)
-{
- wxSockCbk old_cbk = cbk_;
-
- m_cbk = cbk_;
- return old_cbk;
-}
-
-char *wxSocketBase::CallbackData(char *data)
-{
- char *old_data = m_cdata;
-
- m_cdata = data;
- return old_data;
-}
// --------------------------------------------------------------------------
-// Event system
+// Event handling
// --------------------------------------------------------------------------
-// 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)
+// 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)event);
-}
-
-wxSocketEventFlags wxSocketBase::EventToNotify(wxSocketNotify evt)
-{
- switch (evt)
- {
- case GSOCK_INPUT: return GSOCK_INPUT_FLAG;
- case GSOCK_OUTPUT: return GSOCK_OUTPUT_FLAG;
- case GSOCK_CONNECTION: return GSOCK_CONNECTION_FLAG;
- case GSOCK_LOST: return GSOCK_LOST_FLAG;
- }
- return 0;
-}
-
-void wxSocketBase::SetNotify(wxSocketEventFlags flags)
-{
- m_neededreq = flags;
-}
-
-void wxSocketBase::Notify(bool notify)
-{
- m_notify_state = notify;
+ sckobj->OnRequest((wxSocketNotify) notification);
}
-void wxSocketBase::OnRequest(wxSocketNotify req_evt)
+void wxSocketBase::OnRequest(wxSocketNotify notification)
{
- wxSocketEvent event(m_id);
- wxSocketEventFlags flag = EventToNotify(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: 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(req_evt)
+ switch(notification)
{
case wxSOCKET_CONNECTION:
- m_establishing = FALSE;
- m_connected = TRUE;
+ m_establishing = false;
+ m_connected = true;
break;
// If we are in the middle of a R/W operation, do not
// which are no longer valid.
case wxSOCKET_INPUT:
- if (m_reading || !GSocket_Select(m_socket, GSOCK_INPUT_FLAG))
+ if (m_reading || !m_socket->Select(GSOCK_INPUT_FLAG))
return;
break;
case wxSOCKET_OUTPUT:
- if (m_writing || !GSocket_Select(m_socket, GSOCK_OUTPUT_FLAG))
+ if (m_writing || !m_socket->Select(GSOCK_OUTPUT_FLAG))
return;
break;
case wxSOCKET_LOST:
- m_connected = FALSE;
- m_establishing = FALSE;
+ m_connected = false;
+ m_establishing = false;
break;
default:
break;
}
- if (((m_neededreq & flag) == flag) && m_notify_state)
+ // Schedule the event
+
+ wxSocketEventFlags flag = 0;
+ wxUnusedVar(flag);
+ switch (notification)
{
- event.m_socket = this;
- event.m_skevt = req_evt;
+ 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_evt_handler)
+ if (((m_eventmask & flag) == flag) && m_notify)
+ {
+ if (m_handler)
{
-#if USE_DELAYED_EVENTS
- wxPostEvent(m_evt_handler, event);
-#else
- ProcessEvent(event);
-#endif
- }
+ wxSocketEvent event(m_id);
+ event.m_event = notification;
+ event.m_clientData = m_clientData;
+ event.SetEventObject(this);
- OldOnNotify(req_evt);
- if (m_cbk)
- m_cbk(*this, req_evt, m_cdata);
+ m_handler->AddPendingEvent(event);
+ }
}
}
-void wxSocketBase::OldOnNotify(wxSocketNotify WXUNUSED(evt))
+void wxSocketBase::Notify(bool notify)
{
+ m_notify = notify;
}
-void wxSocketBase::SetEventHandler(wxEvtHandler& h_evt, int id)
+void wxSocketBase::SetNotify(wxSocketEventFlags flags)
{
- m_evt_handler = &h_evt;
- m_id = id;
+ m_eventmask = flags;
+}
- SetNextHandler(&h_evt);
+void wxSocketBase::SetEventHandler(wxEvtHandler& handler, int id)
+{
+ m_handler = &handler;
+ m_id = id;
}
// --------------------------------------------------------------------------
// Pushback buffer
// --------------------------------------------------------------------------
-void wxSocketBase::Pushback(const char *buffer, wxUint32 size)
+void wxSocketBase::Pushback(const void *buffer, wxUint32 size)
{
if (!size) return;
if (m_unread == NULL)
- m_unread = (char *)malloc(size);
+ m_unread = malloc(size);
else
{
- char *tmp;
+ void *tmp;
- tmp = (char *)malloc(m_unrd_size + size);
- memcpy(tmp+size, m_unread, m_unrd_size);
+ tmp = malloc(m_unrd_size + size);
+ memcpy((char *)tmp + size, m_unread, m_unrd_size);
free(m_unread);
m_unread = tmp;
memcpy(m_unread, buffer, size);
}
-wxUint32 wxSocketBase::GetPushback(char *buffer, wxUint32 size, bool peek)
+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, (m_unread+m_unrd_cur), size);
+ memcpy(buffer, (char *)m_unread + m_unrd_cur, size);
if (!peek)
{
return size;
}
+
// ==========================================================================
// wxSocketServer
// ==========================================================================
// Ctor
// --------------------------------------------------------------------------
-wxSocketServer::wxSocketServer(wxSockAddress& addr_man,
- wxSockFlags flags)
- : wxSocketBase(flags, SOCK_SERVER)
+wxSocketServer::wxSocketServer(const wxSockAddress& addr_man,
+ wxSocketFlags flags)
+ : wxSocketBase(flags, wxSOCKET_SERVER)
{
- // Create the socket
- m_socket = GSocket_new();
+ wxLogTrace( wxTRACE_Socket, _T("Opening wxSocketServer") );
- if (!m_socket)
- return;
+ m_socket = GSocket_new();
- // Setup the socket as server
- GSocket_SetLocal(m_socket, addr_man.GetAddress());
- if (GSocket_SetServer(m_socket) != GSOCK_NOERROR)
- {
- GSocket_destroy(m_socket);
- m_socket = NULL;
- return;
- }
+ if (!m_socket)
+ {
+ wxLogTrace( wxTRACE_Socket, _T("*** GSocket_new 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);
+ // Setup the socket as server
+ m_socket->SetLocal(addr_man.GetAddress());
+
+ if (GetFlags() & wxSOCKET_REUSEADDR) {
+ m_socket->SetReusable();
+ }
+
+ if (m_socket->SetServer() != GSOCK_NOERROR)
+ {
+ delete m_socket;
+ m_socket = NULL;
+
+ wxLogTrace( wxTRACE_Socket, _T("*** GSocket_SetServer failed") );
+ return;
+ }
+
+ m_socket->SetTimeout(m_timeout * 1000);
+ m_socket->SetCallback(GSOCK_INPUT_FLAG | GSOCK_OUTPUT_FLAG |
+ GSOCK_LOST_FLAG | GSOCK_CONNECTION_FLAG,
+ wx_socket_callback, (char *)this);
}
// --------------------------------------------------------------------------
GSocket *child_socket;
if (!m_socket)
- return FALSE;
+ return false;
- // 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, TRUE);
+ m_socket->SetNonBlocking(1);
- child_socket = GSocket_WaitConnection(m_socket);
+ child_socket = m_socket->WaitConnection();
if (!wait)
- GSocket_SetNonBlocking(m_socket, FALSE);
+ m_socket->SetNonBlocking(0);
if (!child_socket)
- return FALSE;
+ return false;
- sock.m_type = SOCK_INTERNAL;
+ sock.m_type = wxSOCKET_BASE;
sock.m_socket = child_socket;
- sock.m_connected = TRUE;
+ sock.m_connected = true;
- GSocket_SetTimeout(sock.m_socket, sock.m_timeout * 1000);
- GSocket_SetCallback(sock.m_socket, GSOCK_INPUT_FLAG | GSOCK_OUTPUT_FLAG |
+ sock.m_socket->SetTimeout(sock.m_timeout * 1000);
+ sock.m_socket->SetCallback(GSOCK_INPUT_FLAG | GSOCK_OUTPUT_FLAG |
GSOCK_LOST_FLAG | GSOCK_CONNECTION_FLAG,
wx_socket_callback, (char *)&sock);
- return TRUE;
+ return true;
}
wxSocketBase *wxSocketServer::Accept(bool wait)
{
wxSocketBase* sock = new wxSocketBase();
- sock->SetFlags((wxSockFlags)m_flags);
+ sock->SetFlags(m_flags);
if (!AcceptWith(*sock, wait))
- return NULL;
+ {
+ sock->Destroy();
+ sock = NULL;
+ }
return sock;
}
return _Wait(seconds, milliseconds, GSOCK_CONNECTION_FLAG);
}
+bool wxSocketBase::GetOption(int level, int optname, void *optval, int *optlen)
+{
+ wxASSERT_MSG( m_socket, _T("Socket not initialised") );
+
+ if (m_socket->GetSockOpt(level, optname, optval, optlen)
+ != GSOCK_NOERROR)
+ {
+ return false;
+ }
+ return true;
+}
+
+bool wxSocketBase::SetOption(int level, int optname, const void *optval,
+ int optlen)
+{
+ wxASSERT_MSG( m_socket, _T("Socket not initialised") );
+
+ if (m_socket->SetSockOpt(level, optname, optval, optlen)
+ != GSOCK_NOERROR)
+ {
+ return false;
+ }
+ return true;
+}
+
// ==========================================================================
// wxSocketClient
// ==========================================================================
// Ctor and dtor
// --------------------------------------------------------------------------
-wxSocketClient::wxSocketClient(wxSockFlags _flags)
- : wxSocketBase(_flags, SOCK_CLIENT)
+wxSocketClient::wxSocketClient(wxSocketFlags flags)
+ : wxSocketBase(flags, wxSOCKET_CLIENT)
{
}
-// XXX: What is this for ?
wxSocketClient::~wxSocketClient()
{
}
{
// Shutdown and destroy the socket
Close();
- GSocket_destroy(m_socket);
+ delete m_socket;
}
m_socket = GSocket_new();
- m_connected = FALSE;
- m_establishing = FALSE;
+ m_connected = false;
+ m_establishing = false;
if (!m_socket)
- return FALSE;
+ return false;
- GSocket_SetTimeout(m_socket, m_timeout * 1000);
- GSocket_SetCallback(m_socket, GSOCK_INPUT_FLAG | GSOCK_OUTPUT_FLAG |
+ m_socket->SetTimeout(m_timeout * 1000);
+ m_socket->SetCallback(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.
+ // 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, TRUE);
+ m_socket->SetNonBlocking(1);
- GSocket_SetPeer(m_socket, addr_man.GetAddress());
- err = GSocket_Connect(m_socket, GSOCK_STREAMED);
+ m_socket->SetPeer(addr_man.GetAddress());
+ err = m_socket->Connect(GSOCK_STREAMED);
if (!wait)
- GSocket_SetNonBlocking(m_socket, FALSE);
+ m_socket->SetNonBlocking(0);
if (err != GSOCK_NOERROR)
{
if (err == GSOCK_WOULDBLOCK)
- m_establishing = TRUE;
+ m_establishing = true;
- return FALSE;
+ return false;
}
- m_connected = TRUE;
- return TRUE;
+ m_connected = true;
+ return true;
}
bool wxSocketClient::WaitOnConnect(long seconds, long milliseconds)
{
if (m_connected) // Already connected
- return TRUE;
+ return true;
if (!m_establishing || !m_socket) // No connection in progress
- return FALSE;
+ return false;
- return _Wait(seconds, milliseconds, GSOCK_CONNECTION_FLAG);
+ return _Wait(seconds, milliseconds, GSOCK_CONNECTION_FLAG |
+ GSOCK_LOST_FLAG);
}
// ==========================================================================
/* NOTE: experimental stuff - might change */
-wxDatagramSocket::wxDatagramSocket( wxSockAddress& addr, wxSockFlags flags )
- : wxSocketBase( flags, SOCK_DATAGRAM )
+wxDatagramSocket::wxDatagramSocket( const wxSockAddress& addr,
+ wxSocketFlags flags )
+ : wxSocketBase( flags, wxSOCKET_DATAGRAM )
{
// Create the socket
m_socket = GSocket_new();
if(!m_socket)
+ {
+ wxASSERT_MSG( 0, _T("datagram socket not new'd") );
return;
-
+ }
// Setup the socket as non connection oriented
- GSocket_SetLocal(m_socket, addr.GetAddress());
- if( GSocket_SetNonOriented(m_socket) != GSOCK_NOERROR )
+ m_socket->SetLocal(addr.GetAddress());
+ if( m_socket->SetNonOriented() != GSOCK_NOERROR )
{
- GSocket_destroy(m_socket);
+ delete 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 |
+ m_connected = false;
+ m_establishing = false;
+ m_socket->SetTimeout( m_timeout );
+ m_socket->SetCallback( GSOCK_INPUT_FLAG | GSOCK_OUTPUT_FLAG |
GSOCK_LOST_FLAG | GSOCK_CONNECTION_FLAG,
wx_socket_callback, (char*)this );
}
wxDatagramSocket& wxDatagramSocket::RecvFrom( wxSockAddress& addr,
- char* buf,
+ void* buf,
wxUint32 nBytes )
{
Read(buf, nBytes);
return (*this);
}
-wxDatagramSocket& wxDatagramSocket::SendTo( wxSockAddress& addr,
- const char* buf,
+wxDatagramSocket& wxDatagramSocket::SendTo( const wxSockAddress& addr,
+ const void* buf,
wxUint32 nBytes )
{
- GSocket_SetPeer(m_socket, addr.GetAddress());
+ wxASSERT_MSG( m_socket, _T("Socket not initialised") );
+
+ m_socket->SetPeer(addr.GetAddress());
Write(buf, nBytes);
return (*this);
}
-// ==========================================================================
-// wxSocketEvent
-// ==========================================================================
-
-// XXX: Should be moved to event.cpp ?
-
-wxSocketEvent::wxSocketEvent(int id)
- : wxEvent(id)
-{
- wxEventType type = (wxEventType)wxEVT_SOCKET;
-
- SetEventType(type);
-}
-
-void wxSocketEvent::CopyObject(wxObject& obj_d) const
-{
- wxSocketEvent *event = (wxSocketEvent *)&obj_d;
-
- wxEvent::CopyObject(obj_d);
-
- event->m_skevt = m_skevt;
- event->m_socket = m_socket;
-}
-
// ==========================================================================
// wxSocketModule
// ==========================================================================
-class WXDLLEXPORT wxSocketModule: public wxModule
+class wxSocketModule : public wxModule
{
- DECLARE_DYNAMIC_CLASS(wxSocketModule)
-
public:
- bool OnInit() { return GSocket_Init(); }
- void OnExit() { GSocket_Cleanup(); }
+ 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
+
+// vi:sts=4:sw=4:et
projects / wxWidgets.git / blobdiff