// Authors: Guilhem Lavaux, Guillermo Rodriguez Garcia
// Created: April 1997
// Copyright: (C) 1999-1997, Guilhem Lavaux
-// (C) 2000-1999, Guillermo Rodriguez Garcia
+// (C) 1999-2000, Guillermo Rodriguez Garcia
+// (C) 2008 Vadim Zeitlin
// RCS_ID: $Id$
// License: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
#include "wx/stopwatch.h"
#include "wx/thread.h"
#include "wx/evtloop.h"
+
#include "wx/private/fd.h"
+#include "wx/private/socket.h"
// DLL options compatibility check:
#include "wx/build.h"
IMPLEMENT_CLASS(wxDatagramSocket, wxSocketBase)
IMPLEMENT_DYNAMIC_CLASS(wxSocketEvent, wxEvent)
+// ----------------------------------------------------------------------------
+// private functions
+// ----------------------------------------------------------------------------
+
+namespace
+{
+
+void SetTimeValFromMS(timeval& tv, unsigned long ms)
+{
+ tv.tv_sec = (ms / 1000);
+ tv.tv_usec = (ms % 1000) * 1000;
+}
+
+} // anonymous namespace
+
// --------------------------------------------------------------------------
// private classes
// --------------------------------------------------------------------------
DECLARE_NO_COPY_CLASS(wxSocketState)
};
-// Conditionally make the socket non-blocking for the lifetime of this object.
-class wxSocketUnblocker
-{
-public:
- wxSocketUnblocker(GSocket *socket, bool unblock = true)
- : m_socket(socket),
- m_unblock(unblock)
- {
- if ( m_unblock )
- m_socket->SetNonBlocking(true);
- }
-
- ~wxSocketUnblocker()
- {
- if ( m_unblock )
- m_socket->SetNonBlocking(false);
- }
-
-private:
- GSocket * const m_socket;
- bool m_unblock;
-
- DECLARE_NO_COPY_CLASS(wxSocketUnblocker)
-};
-
// ============================================================================
-// GSocketManager
+// wxSocketManager
// ============================================================================
-GSocketManager *GSocketManager::ms_manager = NULL;
+wxSocketManager *wxSocketManager::ms_manager = NULL;
/* static */
-void GSocketManager::Set(GSocketManager *manager)
+void wxSocketManager::Set(wxSocketManager *manager)
{
wxASSERT_MSG( !ms_manager, "too late to set manager now" );
}
/* static */
-void GSocketManager::Init()
+void wxSocketManager::Init()
{
wxASSERT_MSG( !ms_manager, "shouldn't be initialized twice" );
}
// ==========================================================================
-// GSocketBase
+// wxSocketImpl
// ==========================================================================
-/* static */
-GSocket *GSocketBase::Create()
-{
- GSocket * const newsocket = new GSocket();
- if ( !GSocketManager::Get()->Init_Socket(newsocket) )
- {
- delete newsocket;
- return NULL;
- }
-
- return newsocket;
-}
-
-GSocketBase::GSocketBase()
+wxSocketImpl::wxSocketImpl(wxSocketBase& wxsocket)
+ : m_wxsocket(&wxsocket)
{
m_fd = INVALID_SOCKET;
m_detected = 0;
m_local = NULL;
m_peer = NULL;
- m_error = GSOCK_NOERROR;
+ m_error = wxSOCKET_NOERROR;
m_server = false;
m_stream = true;
- m_non_blocking = false;
-#ifdef __WINDOWS__
- m_timeout.tv_sec = 10 * 60; /* 10 minutes */
- m_timeout.tv_usec = 0;
-#else
- m_timeout = 10*60*1000; /* 10 minutes * 60 sec * 1000 millisec */
-#endif
+
+ SetTimeout(wxsocket.GetTimeout() * 1000);
m_establishing = false;
m_reusable = false;
m_dobind = true;
m_initialRecvBufferSize = -1;
m_initialSendBufferSize = -1;
-
- for ( int i = 0; i < GSOCK_MAX_EVENT; i++ )
- m_cbacks[i] = NULL;
}
-GSocketBase::~GSocketBase()
+wxSocketImpl::~wxSocketImpl()
{
if (m_fd != INVALID_SOCKET)
Shutdown();
if (m_peer)
GAddress_destroy(m_peer);
+}
+
+bool wxSocketImpl::PreCreateCheck(GAddress *addr)
+{
+ if ( m_fd != INVALID_SOCKET )
+ {
+ m_error = wxSOCKET_INVSOCK;
+ return false;
+ }
+
+ if ( !addr || !addr->m_addr )
+ {
+ m_error = wxSOCKET_INVADDR;
+ return false;
+ }
+
+ return true;
+}
+
+void wxSocketImpl::PostCreation()
+{
+ // FreeBSD variants can't use MSG_NOSIGNAL, and instead use a socket option
+#ifdef SO_NOSIGPIPE
+ EnableSocketOption(SO_NOSIGPIPE);
+#endif
+
+ if ( m_reusable )
+ EnableSocketOption(SO_REUSEADDR);
+
+ if ( m_broadcast )
+ {
+ wxASSERT_MSG( !m_stream, "broadcasting is for datagram sockets only" );
+
+ EnableSocketOption(SO_BROADCAST);
+ }
+
+ if ( m_initialRecvBufferSize >= 0 )
+ SetSocketOption(SO_RCVBUF, m_initialRecvBufferSize);
+ if ( m_initialSendBufferSize >= 0 )
+ SetSocketOption(SO_SNDBUF, m_initialSendBufferSize);
+
+ // we always put our sockets in unblocked mode and handle blocking
+ // ourselves in DoRead/Write() if wxSOCKET_WAITALL is specified
+ UnblockAndRegisterWithEventLoop();
+}
+
+wxSocketError wxSocketImpl::UpdateLocalAddress()
+{
+ WX_SOCKLEN_T lenAddr = sizeof(*m_local->m_addr);
+ if ( getsockname(m_fd, m_local->m_addr, &lenAddr) != 0 )
+ {
+ Close();
+ m_error = wxSOCKET_IOERR;
+ return m_error;
+ }
+
+ m_local->m_len = lenAddr;
- // cast is ok as all GSocketBase objects we have in our code are really
- // GSockets
- GSocketManager::Get()->Destroy_Socket(static_cast<GSocket *>(this));
+ return wxSOCKET_NOERROR;
}
-/* GSocket_Shutdown:
+wxSocketError wxSocketImpl::CreateServer()
+{
+ if ( !PreCreateCheck(m_local) )
+ return m_error;
+
+ m_server = true;
+ m_stream = true;
+
+ // do create the socket
+ m_fd = socket(m_local->m_realfamily, SOCK_STREAM, 0);
+
+ if ( m_fd == INVALID_SOCKET )
+ {
+ m_error = wxSOCKET_IOERR;
+ return wxSOCKET_IOERR;
+ }
+
+ PostCreation();
+
+ // and then bind to and listen on it
+ //
+ // FIXME: should we test for m_dobind here?
+ if ( bind(m_fd, m_local->m_addr, m_local->m_len) != 0 )
+ m_error = wxSOCKET_IOERR;
+
+ if ( IsOk() )
+ {
+ if ( listen(m_fd, 5) != 0 )
+ m_error = wxSOCKET_IOERR;
+ }
+
+ if ( !IsOk() )
+ {
+ Close();
+ return m_error;
+ }
+
+ // finally retrieve the address we effectively bound to
+ return UpdateLocalAddress();
+}
+
+wxSocketError wxSocketImpl::CreateClient(bool wait)
+{
+ if ( !PreCreateCheck(m_peer) )
+ return m_error;
+
+ m_fd = socket(m_peer->m_realfamily, SOCK_STREAM, 0);
+
+ if ( m_fd == INVALID_SOCKET )
+ {
+ m_error = wxSOCKET_IOERR;
+ return wxSOCKET_IOERR;
+ }
+
+ PostCreation();
+
+ // If a local address has been set, then bind to it before calling connect
+ if ( m_local && m_local->m_addr )
+ {
+ if ( bind(m_fd, m_local->m_addr, m_local->m_len) != 0 )
+ {
+ Close();
+ m_error = wxSOCKET_IOERR;
+ return m_error;
+ }
+ }
+
+ // Do connect now
+ int rc = connect(m_fd, m_peer->m_addr, m_peer->m_len);
+ if ( rc == SOCKET_ERROR )
+ {
+ wxSocketError err = GetLastError();
+ if ( err == wxSOCKET_WOULDBLOCK )
+ {
+ m_establishing = true;
+
+ // block waiting for connection if we should (otherwise just return
+ // wxSOCKET_WOULDBLOCK to the caller)
+ if ( wait )
+ {
+ err = SelectWithTimeout(wxSOCKET_CONNECTION_FLAG)
+ ? wxSOCKET_NOERROR
+ : wxSOCKET_TIMEDOUT;
+ m_establishing = false;
+ }
+ }
+
+ m_error = err;
+ }
+ else // connected
+ {
+ m_error = wxSOCKET_NOERROR;
+ }
+
+ return m_error;
+}
+
+
+wxSocketError wxSocketImpl::CreateUDP()
+{
+ if ( !PreCreateCheck(m_local) )
+ return m_error;
+
+ m_stream = false;
+ m_server = false;
+
+ m_fd = socket(m_local->m_realfamily, SOCK_DGRAM, 0);
+
+ if ( m_fd == INVALID_SOCKET )
+ {
+ m_error = wxSOCKET_IOERR;
+ return wxSOCKET_IOERR;
+ }
+
+ PostCreation();
+
+ if ( m_dobind )
+ {
+ if ( bind(m_fd, m_local->m_addr, m_local->m_len) != 0 )
+ {
+ Close();
+ m_error = wxSOCKET_IOERR;
+ return m_error;
+ }
+
+ return UpdateLocalAddress();
+ }
+
+ return wxSOCKET_NOERROR;
+}
+
+wxSocketImpl *wxSocketImpl::Accept(wxSocketBase& wxsocket)
+{
+ wxSockAddr from;
+ WX_SOCKLEN_T fromlen = sizeof(from);
+ const int fd = accept(m_fd, &from, &fromlen);
+
+ if ( fd == INVALID_SOCKET )
+ return NULL;
+
+ wxSocketImpl * const sock = Create(wxsocket);
+ sock->m_fd = fd;
+
+ sock->m_peer = GAddress_new();
+ _GAddress_translate_from(sock->m_peer, &from, fromlen);
+
+ sock->UnblockAndRegisterWithEventLoop();
+
+ return sock;
+}
+
+
+void wxSocketImpl::Close()
+{
+ if ( m_fd != INVALID_SOCKET )
+ {
+ DoClose();
+ m_fd = INVALID_SOCKET;
+ }
+}
+
+/*
* Disallow further read/write operations on this socket, close
* the fd and disable all callbacks.
*/
-void GSocketBase::Shutdown()
+void wxSocketImpl::Shutdown()
{
if ( m_fd != INVALID_SOCKET )
{
Close();
}
- /* Disable GUI callbacks */
- for ( int evt = 0; evt < GSOCK_MAX_EVENT; evt++ )
- m_cbacks[evt] = NULL;
+ m_detected = wxSOCKET_LOST_FLAG;
+}
+
+/*
+ * Sets the timeout for blocking calls. Time is expressed in
+ * milliseconds.
+ */
+void wxSocketImpl::SetTimeout(unsigned long millis)
+{
+ SetTimeValFromMS(m_timeout, millis);
+}
+
+void wxSocketImpl::NotifyOnStateChange(wxSocketNotify event)
+{
+ m_wxsocket->OnRequest(event);
+}
+
+/* Address handling */
+
+/*
+ * Set or get the local or peer address for this socket. The 'set'
+ * functions return wxSOCKET_NOERROR on success, an error code otherwise.
+ * The 'get' functions return a pointer to a GAddress object on success,
+ * or NULL otherwise, in which case they set the error code of the
+ * corresponding socket.
+ *
+ * Error codes:
+ * wxSOCKET_INVSOCK - the socket is not valid.
+ * wxSOCKET_INVADDR - the address is not valid.
+ */
+wxSocketError wxSocketImpl::SetLocal(GAddress *address)
+{
+ /* the socket must be initialized, or it must be a server */
+ if (m_fd != INVALID_SOCKET && !m_server)
+ {
+ m_error = wxSOCKET_INVSOCK;
+ return wxSOCKET_INVSOCK;
+ }
+
+ /* check address */
+ if (address == NULL || address->m_family == wxSOCKET_NOFAMILY)
+ {
+ m_error = wxSOCKET_INVADDR;
+ return wxSOCKET_INVADDR;
+ }
+
+ if (m_local)
+ GAddress_destroy(m_local);
+
+ m_local = GAddress_copy(address);
- m_detected = GSOCK_LOST_FLAG;
+ return wxSOCKET_NOERROR;
+}
+
+wxSocketError wxSocketImpl::SetPeer(GAddress *address)
+{
+ /* check address */
+ if (address == NULL || address->m_family == wxSOCKET_NOFAMILY)
+ {
+ m_error = wxSOCKET_INVADDR;
+ return wxSOCKET_INVADDR;
+ }
+
+ if (m_peer)
+ GAddress_destroy(m_peer);
+
+ m_peer = GAddress_copy(address);
+
+ return wxSOCKET_NOERROR;
+}
+
+GAddress *wxSocketImpl::GetLocal()
+{
+ GAddress *address;
+ wxSockAddr addr;
+ WX_SOCKLEN_T size = sizeof(addr);
+ wxSocketError err;
+
+ /* try to get it from the m_local var first */
+ if (m_local)
+ return GAddress_copy(m_local);
+
+ /* else, if the socket is initialized, try getsockname */
+ if (m_fd == INVALID_SOCKET)
+ {
+ m_error = wxSOCKET_INVSOCK;
+ return NULL;
+ }
+
+ if (getsockname(m_fd, (sockaddr*)&addr, &size) == SOCKET_ERROR)
+ {
+ m_error = wxSOCKET_IOERR;
+ return NULL;
+ }
+
+ /* got a valid address from getsockname, create a GAddress object */
+ if ((address = GAddress_new()) == NULL)
+ {
+ m_error = wxSOCKET_MEMERR;
+ return NULL;
+ }
+
+ if ((err = _GAddress_translate_from(address, (sockaddr*)&addr, size)) != wxSOCKET_NOERROR)
+ {
+ GAddress_destroy(address);
+ m_error = err;
+ return NULL;
+ }
+
+ return address;
+}
+
+GAddress *wxSocketImpl::GetPeer()
+{
+ /* try to get it from the m_peer var */
+ if (m_peer)
+ return GAddress_copy(m_peer);
+
+ return NULL;
}
// ==========================================================================
{
if ( !m_countInit++ )
{
- if ( !GSocket_Init() )
+ wxSocketManager * const manager = wxSocketManager::Get();
+ if ( !manager || !manager->OnInit() )
{
m_countInit--;
wxASSERT_MSG( m_countInit > 0, _T("extra call to Shutdown()") );
if ( --m_countInit == 0 )
{
- GSocket_Cleanup();
+ wxSocketManager * const manager = wxSocketManager::Get();
+ wxCHECK_RET( manager, "should have a socket manager" );
+
+ manager->OnExit();
}
}
void wxSocketBase::Init()
{
- m_socket = NULL;
+ m_impl = NULL;
m_type = wxSOCKET_UNINIT;
// state
m_handler = NULL;
m_clientData = NULL;
m_notify = false;
- m_eventmask = 0;
+ m_eventmask =
+ m_eventsgot = 0;
if ( !IsInitialized() )
{
if (!m_beingDeleted)
Close();
- // Destroy the GSocket object
- if (m_socket)
- delete m_socket;
+ // Destroy the implementation object
+ delete m_impl;
// Free the pushback buffer
if (m_unread)
// Shutdown and close the socket
Close();
- // Supress events from now on
+ // Suppress events from now on
Notify(false);
// schedule this object for deletion
return true;
}
+// ----------------------------------------------------------------------------
+// simply accessors
+// ----------------------------------------------------------------------------
+
+wxSocketError wxSocketBase::LastError() const
+{
+ return m_impl->GetError();
+}
+
// --------------------------------------------------------------------------
// Basic IO calls
// --------------------------------------------------------------------------
// The following IO operations update m_error and m_lcount:
// {Read, Write, ReadMsg, WriteMsg, Peek, Unread, Discard}
-//
-// TODO: Should Connect, Accept and AcceptWith update m_error?
-
bool wxSocketBase::Close()
{
// Interrupt pending waits
InterruptWait();
- if (m_socket)
- {
- // Disable callbacks
- m_socket->UnsetCallback(
- GSOCK_INPUT_FLAG |
- GSOCK_OUTPUT_FLAG |
- GSOCK_LOST_FLAG |
- GSOCK_CONNECTION_FLAG
- );
-
- // Shutdown the connection
- m_socket->Shutdown();
- }
+ if (m_impl)
+ m_impl->Shutdown();
m_connected = false;
m_establishing = false;
buffer += total;
// If it's indeed closed or if read everything, there is nothing more to do.
- if ( !m_socket || !nbytes )
+ if ( !m_impl || !nbytes )
return total;
wxCHECK_MSG( buffer, 0, "NULL buffer" );
// polling the socket and don't block at all.
if ( m_flags & wxSOCKET_NOWAIT )
{
- wxSocketUnblocker unblock(m_socket);
- int ret = m_socket->Read(buffer, nbytes);
+ int ret = m_impl->Read(buffer, nbytes);
if ( ret < 0 )
return 0;
{
for ( ;; )
{
- // Wait until socket becomes ready for reading dispatching the GUI
- // events in the meanwhile unless wxSOCKET_BLOCK was explicitly
- // specified to disable this.
- if ( !(m_flags & wxSOCKET_BLOCK) && !WaitForRead() )
+ // Wait until socket becomes ready for reading
+ if ( !WaitForRead() )
break;
- const int ret = m_socket->Read(buffer, nbytes);
+ const int ret = m_impl->Read(buffer, nbytes);
if ( ret == 0 )
{
// for connection-oriented (e.g. TCP) sockets we can only read
const char *buffer = static_cast<const char *>(buffer_);
// Return if there is nothing to read or the socket is (already?) closed.
- if ( !m_socket || !nbytes )
+ if ( !m_impl || !nbytes )
return 0;
wxCHECK_MSG( buffer, 0, "NULL buffer" );
wxUint32 total = 0;
if ( m_flags & wxSOCKET_NOWAIT )
{
- wxSocketUnblocker unblock(m_socket);
- const int ret = m_socket->Write(buffer, nbytes);
+ const int ret = m_impl->Write(buffer, nbytes);
if ( ret > 0 )
total += ret;
}
{
for ( ;; )
{
- if ( !(m_flags & wxSOCKET_BLOCK) && !WaitForWrite() )
+ if ( !WaitForWrite() )
break;
- const int ret = m_socket->Write(buffer, nbytes);
+ const int ret = m_impl->Write(buffer, nbytes);
if ( ret == 0 )
{
m_closed = true;
// Wait functions
// --------------------------------------------------------------------------
-/* GSocket_Select:
- * Polls the socket to determine its status. This function will
- * check for the events specified in the 'flags' parameter, and
- * it will return a mask indicating which operations can be
- * performed. This function won't block, regardless of the
- * mode (blocking | nonblocking) of the socket.
+/*
+ This function will check for the events specified in the flags parameter,
+ and it will return a mask indicating which operations can be performed.
*/
-GSocketEventFlags GSocketBase::Select(GSocketEventFlags flags)
+wxSocketEventFlags wxSocketImpl::Select(wxSocketEventFlags flags,
+ const timeval *timeout)
{
- assert(this);
+ wxSocketEventFlags result = 0;
+
+ if (m_fd == INVALID_SOCKET)
+ return (wxSOCKET_LOST_FLAG & flags);
+
+ struct timeval tv;
+ if ( timeout )
+ tv = *timeout;
+ else
+ tv.tv_sec = tv.tv_usec = 0;
- GSocketEventFlags result = 0;
fd_set readfds;
fd_set writefds;
fd_set exceptfds;
- struct timeval tv;
-
- if (m_fd == -1)
- return (GSOCK_LOST_FLAG & flags);
-
- /* Do not use a static struct, Linux can garble it */
- tv.tv_sec = 0;
- tv.tv_usec = 0;
-
wxFD_ZERO(&readfds);
wxFD_ZERO(&writefds);
wxFD_ZERO(&exceptfds);
wxFD_SET(m_fd, &readfds);
- if (flags & GSOCK_OUTPUT_FLAG || flags & GSOCK_CONNECTION_FLAG)
+ if (flags & wxSOCKET_OUTPUT_FLAG || flags & wxSOCKET_CONNECTION_FLAG)
wxFD_SET(m_fd, &writefds);
wxFD_SET(m_fd, &exceptfds);
/* Check 'sticky' CONNECTION flag first */
- result |= GSOCK_CONNECTION_FLAG & m_detected;
+ result |= wxSOCKET_CONNECTION_FLAG & m_detected;
/* If we have already detected a LOST event, then don't try
* to do any further processing.
*/
- if ((m_detected & GSOCK_LOST_FLAG) != 0)
+ if ((m_detected & wxSOCKET_LOST_FLAG) != 0)
{
m_establishing = false;
- return (GSOCK_LOST_FLAG & flags);
+ return (wxSOCKET_LOST_FLAG & flags);
}
/* Try select now */
if (wxFD_ISSET(m_fd, &exceptfds))
{
m_establishing = false;
- m_detected = GSOCK_LOST_FLAG;
+ m_detected = wxSOCKET_LOST_FLAG;
/* LOST event: Abort any further processing */
- return (GSOCK_LOST_FLAG & flags);
+ return (wxSOCKET_LOST_FLAG & flags);
}
/* Check for readability */
if (wxFD_ISSET(m_fd, &readfds))
{
- result |= GSOCK_INPUT_FLAG;
+ result |= wxSOCKET_INPUT_FLAG;
if (m_server && m_stream)
{
/* This is a TCP server socket that detected a connection.
While the INPUT_FLAG is also set, it doesn't matter on
this kind of sockets, as we can only Accept() from them. */
- m_detected |= GSOCK_CONNECTION_FLAG;
+ m_detected |= wxSOCKET_CONNECTION_FLAG;
}
}
if (error)
{
- m_detected = GSOCK_LOST_FLAG;
+ m_detected = wxSOCKET_LOST_FLAG;
/* LOST event: Abort any further processing */
- return (GSOCK_LOST_FLAG & flags);
+ return (wxSOCKET_LOST_FLAG & flags);
}
else
{
- m_detected |= GSOCK_CONNECTION_FLAG;
+ m_detected |= wxSOCKET_CONNECTION_FLAG;
}
}
else
{
- result |= GSOCK_OUTPUT_FLAG;
+ result |= wxSOCKET_OUTPUT_FLAG;
}
}
return (result | m_detected) & flags;
}
-// 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 runs the event loop so that
-// this won't block the GUI.
-
bool
wxSocketBase::DoWait(long seconds, long milliseconds, wxSocketEventFlags flags)
{
- wxCHECK_MSG( m_socket, false, "can't wait on invalid socket" );
+ wxCHECK_MSG( m_impl, false, "can't wait on invalid socket" );
// This can be set to true from Interrupt() to exit this function a.s.a.p.
m_interrupt = false;
const wxMilliClock_t timeEnd = wxGetLocalTimeMillis() + timeout;
// Get the active event loop which we'll use for the message dispatching
- // when running in the main thread
+ // when running in the main thread unless this was explicitly disabled by
+ // setting wxSOCKET_BLOCK flag
wxEventLoopBase *eventLoop;
- if ( wxIsMainThread() )
+ if ( !(m_flags & wxSOCKET_BLOCK) && wxIsMainThread() )
{
eventLoop = wxEventLoop::GetActive();
}
eventLoop = NULL;
}
- // Wait in an active polling loop: notice that the loop is executed at
- // least once, even if timeout is 0 (i.e. polling).
+ // Wait until we receive the event we're waiting for or the timeout expires
+ // (but note that we always execute the loop at least once, even if timeout
+ // is 0 as this is used for polling)
bool gotEvent = false;
- for ( ;; )
+ for ( bool firstTime = true; !m_interrupt ; firstTime = false )
{
- // We always stop waiting when the connection is lost as it doesn't
- // make sense to continue further, even if GSOCK_LOST_FLAG is not
- // specified in flags to wait for.
- const GSocketEventFlags
- result = m_socket->Select(flags | GSOCK_LOST_FLAG);
-
- // Incoming connection (server) or connection established (client)?
- if ( result & GSOCK_CONNECTION_FLAG )
+ long timeLeft = wxMilliClockToLong(timeEnd - wxGetLocalTimeMillis());
+ if ( timeLeft < 0 )
{
- m_connected = true;
- m_establishing = false;
- gotEvent = true;
- break;
+ if ( !firstTime )
+ break; // timed out
+
+ timeLeft = 0;
}
- // Data available or output buffer ready?
- if ( (result & GSOCK_INPUT_FLAG) || (result & GSOCK_OUTPUT_FLAG) )
+ // This function is only called if wxSOCKET_BLOCK flag was not used and
+ // so we should dispatch the events if there is an event loop capable
+ // of doing it.
+ wxSocketEventFlags events;
+ if ( eventLoop )
{
- gotEvent = true;
- break;
+ // reset them before starting to wait
+ m_eventsgot = 0;
+
+ eventLoop->DispatchTimeout(timeLeft);
+
+ events = m_eventsgot;
+ }
+ else // no event loop or waiting in another thread
+ {
+ // as explained below, we should always check for wxSOCKET_LOST_FLAG
+ timeval tv;
+ SetTimeValFromMS(tv, timeLeft);
+ events = m_impl->Select(flags | wxSOCKET_LOST_FLAG, &tv);
}
- // Connection lost
- if ( result & GSOCK_LOST_FLAG )
+ // always check for wxSOCKET_LOST_FLAG, even if flags doesn't include
+ // it, as continuing to wait for anything else after getting it is
+ // pointless
+ if ( events & wxSOCKET_LOST_FLAG )
{
m_connected = false;
m_establishing = false;
- if ( flags & GSOCK_LOST_FLAG )
+ if ( flags & wxSOCKET_LOST_FLAG )
gotEvent = true;
break;
}
- if ( m_interrupt )
- break;
-
- // Wait more?
- const wxMilliClock_t timeNow = wxGetLocalTimeMillis();
- if ( timeNow >= timeEnd )
- break;
+ // otherwise mask out the bits we're not interested in
+ events &= flags;
- if ( eventLoop )
+ // Incoming connection (server) or connection established (client)?
+ if ( events & wxSOCKET_CONNECTION_FLAG )
{
- // This function is only called if wxSOCKET_BLOCK flag was not used
- // and so we should dispatch the events if there is an event loop
- // capable of doing it.
- if ( eventLoop->Pending() )
- eventLoop->Dispatch();
+ m_connected = true;
+ m_establishing = false;
+ gotEvent = true;
+ break;
}
-#if wxUSE_THREADS
- else // no event loop or waiting in another thread
+
+ // Data available or output buffer ready?
+ if ( (events & wxSOCKET_INPUT_FLAG) || (events & wxSOCKET_OUTPUT_FLAG) )
{
- // We're busy waiting but at least give up the rest of our current
- // time slice.
- wxThread::Yield();
+ gotEvent = true;
+ break;
}
-#endif // wxUSE_THREADS
}
return gotEvent;
bool wxSocketBase::Wait(long seconds, long milliseconds)
{
return DoWait(seconds, milliseconds,
- GSOCK_INPUT_FLAG |
- GSOCK_OUTPUT_FLAG |
- GSOCK_CONNECTION_FLAG |
- GSOCK_LOST_FLAG
+ wxSOCKET_INPUT_FLAG |
+ wxSOCKET_OUTPUT_FLAG |
+ wxSOCKET_CONNECTION_FLAG |
+ wxSOCKET_LOST_FLAG
);
}
if ( m_unread )
return true;
- // Note that GSOCK_INPUT_LOST has to be explicitly passed to DoWait
+ // Note that wxSOCKET_INPUT_LOST has to be explicitly passed to DoWait
// because of the semantics of WaitForRead: a return value of true means
- // that a GSocket_Read call will return immediately, not that there is
+ // that a Read call will return immediately, not that there is
// actually data to read.
- return DoWait(seconds, milliseconds, GSOCK_INPUT_FLAG | GSOCK_LOST_FLAG);
+ return DoWait(seconds, milliseconds, wxSOCKET_INPUT_FLAG | wxSOCKET_LOST_FLAG);
}
bool wxSocketBase::WaitForWrite(long seconds, long milliseconds)
{
- return DoWait(seconds, milliseconds, GSOCK_OUTPUT_FLAG | GSOCK_LOST_FLAG);
+ return DoWait(seconds, milliseconds, wxSOCKET_OUTPUT_FLAG | wxSOCKET_LOST_FLAG);
}
bool wxSocketBase::WaitForLost(long seconds, long milliseconds)
{
- return DoWait(seconds, milliseconds, GSOCK_LOST_FLAG);
+ return DoWait(seconds, milliseconds, wxSOCKET_LOST_FLAG);
}
// --------------------------------------------------------------------------
{
GAddress *peer;
- if (!m_socket)
+ if (!m_impl)
return false;
- peer = m_socket->GetPeer();
+ peer = m_impl->GetPeer();
// copying a null address would just trigger an assert anyway
{
GAddress *local;
- if (!m_socket)
+ if (!m_impl)
return false;
- local = m_socket->GetLocal();
+ local = m_impl->GetLocal();
addr_man.SetAddress(local);
GAddress_destroy(local);
{
m_timeout = seconds;
- if (m_socket)
- m_socket->SetTimeout(m_timeout * 1000);
+ if (m_impl)
+ m_impl->SetTimeout(m_timeout * 1000);
}
void wxSocketBase::SetFlags(wxSocketFlags flags)
// Event handling
// --------------------------------------------------------------------------
-// A note on how events are processed, which is probably the most
-// difficult thing to get working right while keeping the same API
-// and functionality for all platforms.
-//
-// When GSocket detects an event, it calls wx_socket_callback, which in
-// turn just calls wxSocketBase::OnRequest in the corresponding wxSocket
-// object. OnRequest does some housekeeping, and if the event is to be
-// propagated to the user, it creates a new wxSocketEvent object and
-// posts it. The event is not processed immediately, but delayed with
-// AddPendingEvent instead. This is necessary in order to decouple the
-// event processing from wx_socket_callback; otherwise, subsequent IO
-// calls made from the user event handler would fail, as gtk callbacks
-// are not reentrant.
-//
-// Note that, unlike events, user callbacks (now deprecated) are _not_
-// decoupled from wx_socket_callback and thus they suffer from a variety
-// of problems. Avoid them where possible and use events instead.
-
-extern "C"
-void LINKAGEMODE wx_socket_callback(GSocket * WXUNUSED(socket),
- GSocketEvent notification,
- char *cdata)
-{
- wxSocketBase *sckobj = (wxSocketBase *)cdata;
-
- sckobj->OnRequest((wxSocketNotify) notification);
-}
-
void wxSocketBase::OnRequest(wxSocketNotify notification)
{
- switch(notification)
+ wxSocketEventFlags flag = 0;
+ switch ( notification )
{
- case wxSOCKET_CONNECTION:
- m_establishing = false;
- m_connected = true;
- break;
-
- // If we are in the middle of a R/W operation, do not
- // propagate events to users. Also, filter 'late' events
- // which are no longer valid.
-
case wxSOCKET_INPUT:
- if (m_reading || !m_socket->Select(GSOCK_INPUT_FLAG))
- return;
+ flag = wxSOCKET_INPUT_FLAG;
break;
case wxSOCKET_OUTPUT:
- if (m_writing || !m_socket->Select(GSOCK_OUTPUT_FLAG))
- return;
+ flag = wxSOCKET_OUTPUT_FLAG;
break;
- case wxSOCKET_LOST:
- m_connected = false;
- m_establishing = false;
+ case wxSOCKET_CONNECTION:
+ flag = wxSOCKET_CONNECTION_FLAG;
break;
- }
- // Schedule the event
+ case wxSOCKET_LOST:
+ flag = wxSOCKET_LOST_FLAG;
+ break;
- wxSocketEventFlags flag = 0;
- wxUnusedVar(flag);
- switch (notification)
- {
- case GSOCK_INPUT: flag = GSOCK_INPUT_FLAG; break;
- case GSOCK_OUTPUT: flag = GSOCK_OUTPUT_FLAG; break;
- case GSOCK_CONNECTION: flag = GSOCK_CONNECTION_FLAG; break;
- case GSOCK_LOST: flag = GSOCK_LOST_FLAG; break;
default:
- wxLogWarning(_("wxSocket: unknown event!."));
- return;
+ wxFAIL_MSG( "unknown wxSocket notification" );
}
- if (((m_eventmask & flag) == flag) && m_notify)
+ // if we lost the connection the socket is now closed
+ if ( notification == wxSOCKET_LOST )
+ m_closed = true;
+
+ // remember the events which were generated for this socket, we're going to
+ // use this in DoWait()
+ m_eventsgot |= flag;
+
+ // send the wx event if enabled and we're interested in it
+ if ( m_notify && (m_eventmask & flag) && m_handler )
{
- if (m_handler)
+ // 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 ( notification == wxSOCKET_INPUT )
{
- wxSocketEvent event(m_id);
- event.m_event = notification;
- event.m_clientData = m_clientData;
- event.SetEventObject(this);
-
- m_handler->AddPendingEvent(event);
+ if ( m_reading || !m_impl->Select(wxSOCKET_INPUT_FLAG) )
+ return;
+ }
+ else if ( notification == wxSOCKET_OUTPUT )
+ {
+ if ( m_writing || !m_impl->Select(wxSOCKET_OUTPUT_FLAG) )
+ return;
}
+
+ wxSocketEvent event(m_id);
+ event.m_event = notification;
+ event.m_clientData = m_clientData;
+ event.SetEventObject(this);
+
+ m_handler->AddPendingEvent(event);
}
}
void wxSocketBase::Notify(bool notify)
{
m_notify = notify;
- if (m_socket)
- m_socket->Notify(notify);
}
void wxSocketBase::SetNotify(wxSocketEventFlags flags)
{
wxLogTrace( wxTRACE_Socket, _T("Opening wxSocketServer") );
- m_socket = GSocket::Create();
+ m_impl = wxSocketImpl::Create(*this);
- if (!m_socket)
+ if (!m_impl)
{
- wxLogTrace( wxTRACE_Socket, _T("*** GSocket_new failed") );
+ wxLogTrace( wxTRACE_Socket, _T("*** Failed to create m_impl") );
return;
}
// Setup the socket as server
- m_socket->Notify(m_notify);
- m_socket->SetLocal(addr_man.GetAddress());
+ m_impl->SetLocal(addr_man.GetAddress());
if (GetFlags() & wxSOCKET_REUSEADDR) {
- m_socket->SetReusable();
+ m_impl->SetReusable();
}
if (GetFlags() & wxSOCKET_BROADCAST) {
- m_socket->SetBroadcast();
+ m_impl->SetBroadcast();
}
if (GetFlags() & wxSOCKET_NOBIND) {
- m_socket->DontDoBind();
+ m_impl->DontDoBind();
}
- if (m_socket->SetServer() != GSOCK_NOERROR)
+ if (m_impl->CreateServer() != wxSOCKET_NOERROR)
{
- delete m_socket;
- m_socket = NULL;
+ delete m_impl;
+ m_impl = NULL;
- wxLogTrace( wxTRACE_Socket, _T("*** GSocket_SetServer failed") );
+ wxLogTrace( wxTRACE_Socket, _T("*** CreateServer() 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);
-
- wxLogTrace( wxTRACE_Socket, _T("wxSocketServer on fd %d"), m_socket->m_fd );
+ wxLogTrace( wxTRACE_Socket, _T("wxSocketServer on fd %d"), m_impl->m_fd );
}
// --------------------------------------------------------------------------
bool wxSocketServer::AcceptWith(wxSocketBase& sock, bool wait)
{
- if (!m_socket)
+ if ( !m_impl || (m_impl->m_fd == INVALID_SOCKET) || !m_impl->IsServer() )
+ {
+ wxFAIL_MSG( "can only be called for a valid server socket" );
+
+ m_error = wxSOCKET_INVSOCK;
+
return false;
+ }
- // If wait == false, then the call should be nonblocking.
- // When we are finished, we put the socket to blocking mode
- // again.
- wxSocketUnblocker unblock(m_socket, !wait);
- GSocket * const child_socket = m_socket->WaitConnection();
+ if ( wait )
+ {
+ // wait until we get a connection
+ if ( !m_impl->SelectWithTimeout(wxSOCKET_INPUT_FLAG) )
+ {
+ m_error = wxSOCKET_TIMEDOUT;
+
+ return false;
+ }
+ }
+
+ sock.m_impl = m_impl->Accept(sock);
+
+ if ( !sock.m_impl )
+ {
+ m_error = m_impl->GetLastError();
- if (!child_socket)
return false;
+ }
sock.m_type = wxSOCKET_BASE;
- sock.m_socket = child_socket;
sock.m_connected = true;
- 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;
}
bool wxSocketServer::WaitForAccept(long seconds, long milliseconds)
{
- return DoWait(seconds, milliseconds, GSOCK_CONNECTION_FLAG);
+ return DoWait(seconds, milliseconds, wxSOCKET_CONNECTION_FLAG);
}
bool wxSocketBase::GetOption(int level, int optname, void *optval, int *optlen)
{
- wxASSERT_MSG( m_socket, _T("Socket not initialised") );
+ wxASSERT_MSG( m_impl, _T("Socket not initialised") );
- if (m_socket->GetSockOpt(level, optname, optval, optlen)
- != GSOCK_NOERROR)
- {
+ SOCKOPTLEN_T lenreal = *optlen;
+ if ( getsockopt(m_impl->m_fd, level, optname,
+ static_cast<char *>(optval), &lenreal) != 0 )
return false;
- }
+
+ *optlen = lenreal;
+
return true;
}
-bool wxSocketBase::SetOption(int level, int optname, const void *optval,
- int optlen)
+bool
+wxSocketBase::SetOption(int level, int optname, const void *optval, int optlen)
{
- wxASSERT_MSG( m_socket, _T("Socket not initialised") );
+ wxASSERT_MSG( m_impl, _T("Socket not initialised") );
- if (m_socket->SetSockOpt(level, optname, optval, optlen)
- != GSOCK_NOERROR)
- {
- return false;
- }
- return true;
+ return setsockopt(m_impl->m_fd, level, optname,
+ static_cast<const char *>(optval), optlen) == 0;
}
bool wxSocketBase::SetLocal(const wxIPV4address& local)
// Connect
// --------------------------------------------------------------------------
-bool wxSocketClient::DoConnect(const wxSockAddress& addr_man,
+bool wxSocketClient::DoConnect(const wxSockAddress& remote,
const wxSockAddress* local,
bool wait)
{
- if (m_socket)
+ if ( m_impl )
{
- // Shutdown and destroy the socket
+ // Shutdown and destroy the old socket
Close();
- delete m_socket;
+ delete m_impl;
}
- m_socket = GSocket::Create();
m_connected = false;
m_establishing = false;
- if (!m_socket)
+ // Create and set up the new one
+ m_impl = wxSocketImpl::Create(*this);
+ if ( !m_impl )
return false;
- 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. When we are
- // finished, we put the socket to blocking mode again.
- wxSocketUnblocker unblock(m_socket, !wait);
-
// Reuse makes sense for clients too, if we are trying to rebind to the same port
if (GetFlags() & wxSOCKET_REUSEADDR)
- {
- m_socket->SetReusable();
- }
+ m_impl->SetReusable();
if (GetFlags() & wxSOCKET_BROADCAST)
- {
- m_socket->SetBroadcast();
- }
+ m_impl->SetBroadcast();
if (GetFlags() & wxSOCKET_NOBIND)
- {
- m_socket->DontDoBind();
- }
+ m_impl->DontDoBind();
- // If no local address was passed and one has been set, use the one that was Set
- if (!local && m_localAddress.GetAddress())
- {
+ // Bind to the local IP address and port, when provided or if one had been
+ // set before
+ if ( !local && m_localAddress.GetAddress() )
local = &m_localAddress;
- }
- // Bind to the local IP address and port, when provided
- if (local)
- {
- GAddress* la = local->GetAddress();
+ if ( local )
+ m_impl->SetLocal(local->GetAddress());
- if (la && la->m_addr)
- m_socket->SetLocal(la);
- }
+ m_impl->SetInitialSocketBuffers(m_initialRecvBufferSize, m_initialSendBufferSize);
-#if defined(__WXMSW__) || defined(__WXGTK__)
- m_socket->SetInitialSocketBuffers(m_initialRecvBufferSize, m_initialSendBufferSize);
-#endif
+ m_impl->SetPeer(remote.GetAddress());
- m_socket->SetPeer(addr_man.GetAddress());
- const GSocketError err = m_socket->Connect(GSOCK_STREAMED);
+ // Finally do create the socket and connect to the peer
+ const wxSocketError err = m_impl->CreateClient(wait);
- //this will register for callbacks - must be called after m_socket->m_fd was initialized
- m_socket->Notify(m_notify);
-
- if (err != GSOCK_NOERROR)
+ if ( err != wxSOCKET_NOERROR )
{
- if (err == GSOCK_WOULDBLOCK)
+ if ( err == wxSOCKET_WOULDBLOCK )
+ {
+ wxASSERT_MSG( !wait, "shouldn't get this for blocking connect" );
+
m_establishing = true;
+ }
return false;
}
return true;
}
-bool wxSocketClient::Connect(const wxSockAddress& addr_man, bool wait)
+bool wxSocketClient::Connect(const wxSockAddress& remote, bool wait)
{
- return DoConnect(addr_man, NULL, wait);
+ return DoConnect(remote, NULL, wait);
}
-bool wxSocketClient::Connect(const wxSockAddress& addr_man,
+bool wxSocketClient::Connect(const wxSockAddress& remote,
const wxSockAddress& local,
bool wait)
{
- return DoConnect(addr_man, &local, wait);
+ return DoConnect(remote, &local, wait);
}
bool wxSocketClient::WaitOnConnect(long seconds, long milliseconds)
return true;
}
- wxCHECK_MSG( m_establishing && m_socket, false,
+ wxCHECK_MSG( m_establishing && m_impl, false,
"No connection establishment attempt in progress" );
- // we must specify GSOCK_LOST_FLAG here explicitly because we must return
+ // we must specify wxSOCKET_LOST_FLAG here explicitly because we must return
// true if the connection establishment process is finished, whether it is
// over because we successfully connected or because we were not able to
// connect
return DoWait(seconds, milliseconds,
- GSOCK_CONNECTION_FLAG | GSOCK_LOST_FLAG);
+ wxSOCKET_CONNECTION_FLAG | wxSOCKET_LOST_FLAG);
}
// ==========================================================================
// wxDatagramSocket
// ==========================================================================
-/* NOTE: experimental stuff - might change */
-
wxDatagramSocket::wxDatagramSocket( const wxSockAddress& addr,
wxSocketFlags flags )
: wxSocketBase( flags, wxSOCKET_DATAGRAM )
{
// Create the socket
- m_socket = GSocket::Create();
+ m_impl = wxSocketImpl::Create(*this);
- if (!m_socket)
- {
- wxFAIL_MSG( _T("datagram socket not new'd") );
+ if (!m_impl)
return;
- }
- m_socket->Notify(m_notify);
+
// Setup the socket as non connection oriented
- m_socket->SetLocal(addr.GetAddress());
+ m_impl->SetLocal(addr.GetAddress());
if (flags & wxSOCKET_REUSEADDR)
{
- m_socket->SetReusable();
+ m_impl->SetReusable();
}
if (GetFlags() & wxSOCKET_BROADCAST)
{
- m_socket->SetBroadcast();
+ m_impl->SetBroadcast();
}
if (GetFlags() & wxSOCKET_NOBIND)
{
- m_socket->DontDoBind();
+ m_impl->DontDoBind();
}
- if ( m_socket->SetNonOriented() != GSOCK_NOERROR )
+
+ if ( m_impl->CreateUDP() != wxSOCKET_NOERROR )
{
- delete m_socket;
- m_socket = NULL;
+ delete m_impl;
+ m_impl = NULL;
return;
}
// Initialize all stuff
m_connected = false;
m_establishing = false;
- 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 );
}
wxDatagramSocket& wxDatagramSocket::RecvFrom( wxSockAddress& addr,
const void* buf,
wxUint32 nBytes )
{
- wxASSERT_MSG( m_socket, _T("Socket not initialised") );
+ wxASSERT_MSG( m_impl, _T("Socket not initialised") );
- m_socket->SetPeer(addr.GetAddress());
+ m_impl->SetPeer(addr.GetAddress());
Write(buf, nBytes);
return (*this);
}
public:
virtual bool OnInit()
{
- // wxSocketBase will call GSocket_Init() itself when/if needed
+ // wxSocketBase will call Initialize() itself only if sockets are
+ // really used, don't do it from here
return true;
}
projects / wxWidgets.git / blobdiff