-////////////////////////////////////////////////////////////////////////////////
-// Name: socket.cpp
+/////////////////////////////////////////////////////////////////////////////
+// Name: src/common/socket.cpp
// Purpose: Socket handler classes
-// Authors: Guilhem Lavaux (completely rewritten from a basic API of Andrew
-// Davidson(1995) in wxWeb)
+// Authors: Guilhem Lavaux, Guillermo Rodriguez Garcia
// Created: April 1997
-// Updated: April 1999
-// Copyright: (C) 1999 1998, 1997, Guilhem Lavaux
+// Copyright: (C) 1999-1997, Guilhem Lavaux
+// (C) 1999-2000, Guillermo Rodriguez Garcia
+// (C) 2008 Vadim Zeitlin
// RCS_ID: $Id$
-// License: see wxWindows license
-////////////////////////////////////////////////////////////////////////////////
-#ifdef __GNUG__
-#pragma implementation "socket.h"
-#endif
+// License: wxWindows licence
+/////////////////////////////////////////////////////////////////////////////
-#ifdef __MWERKS__
-typedef int socklen_t ;
-#endif
+// ==========================================================================
+// Declarations
+// ==========================================================================
// For compilers that support precompilation, includes "wx.h".
#include "wx/wxprec.h"
#ifdef __BORLANDC__
-#pragma hdrstop
+ #pragma hdrstop
#endif
#if wxUSE_SOCKETS
-/////////////////////////////////////////////////////////////////////////////
-// wxWindows headers
-/////////////////////////////////////////////////////////////////////////////
-#include <wx/defs.h>
-#include <wx/object.h>
-#include <wx/string.h>
-#include <wx/timer.h>
-#include <wx/utils.h>
+#include "wx/socket.h"
+
+#ifndef WX_PRECOMP
+ #include "wx/object.h"
+ #include "wx/string.h"
+ #include "wx/intl.h"
+ #include "wx/log.h"
+ #include "wx/event.h"
+ #include "wx/app.h"
+ #include "wx/utils.h"
+ #include "wx/timer.h"
+ #include "wx/module.h"
+#endif
-// Not enough OS behaviour defined for wxStubs
-#ifndef __WXSTUBS__
+#include "wx/apptrait.h"
+#include "wx/sckaddr.h"
+#include "wx/stopwatch.h"
+#include "wx/thread.h"
+#include "wx/evtloop.h"
-#include <stdlib.h>
-#include <string.h>
-#include <ctype.h>
+#include "wx/private/fd.h"
+#include "wx/private/socket.h"
-/////////////////////////////////////////////////////////////////////////////
-// System specific headers
-/////////////////////////////////////////////////////////////////////////////
-#ifdef __WXMAC__
-// in order to avoid problems with our c library and double definitions
-#define close closesocket
-#define ioctl ioctlsocket
+// DLL options compatibility check:
+#include "wx/build.h"
+WX_CHECK_BUILD_OPTIONS("wxNet")
-#include <wx/mac/macsock.h>
+// --------------------------------------------------------------------------
+// macros and constants
+// --------------------------------------------------------------------------
-#endif
+// discard buffer
+#define MAX_DISCARD_SIZE (10 * 1024)
-#if defined(__WINDOWS__)
-#include <winsock.h>
-#endif // __WINDOWS__
+#define wxTRACE_Socket _T("wxSocket")
-#if defined(__UNIX__)
+// --------------------------------------------------------------------------
+// wxWin macros
+// --------------------------------------------------------------------------
-#ifdef VMS
-#include <socket.h>
-#else
-#include <sys/socket.h>
-#endif
-#include <sys/ioctl.h>
+IMPLEMENT_CLASS(wxSocketBase, wxObject)
+IMPLEMENT_CLASS(wxSocketServer, wxSocketBase)
+IMPLEMENT_CLASS(wxSocketClient, wxSocketBase)
+IMPLEMENT_CLASS(wxDatagramSocket, wxSocketBase)
+IMPLEMENT_DYNAMIC_CLASS(wxSocketEvent, wxEvent)
-#include <sys/time.h>
-#include <unistd.h>
+// --------------------------------------------------------------------------
+// private classes
+// --------------------------------------------------------------------------
-#ifdef sun
-#include <sys/filio.h>
-#endif
+class wxSocketState : public wxObject
+{
+public:
+ wxSocketFlags m_flags;
+ wxSocketEventFlags m_eventmask;
+ bool m_notify;
+ void *m_clientData;
-#endif // __UNIX__
+public:
+ wxSocketState() : wxObject() {}
-#include <signal.h>
-#include <errno.h>
+ DECLARE_NO_COPY_CLASS(wxSocketState)
+};
-#ifdef __VISUALC__
-#include <io.h>
-#endif
+// Conditionally make the socket non-blocking for the lifetime of this object.
+class wxSocketUnblocker
+{
+public:
+ wxSocketUnblocker(wxSocketImpl *socket, bool unblock = true)
+ : m_impl(socket),
+ m_unblock(unblock)
+ {
+ if ( m_unblock )
+ m_impl->SetNonBlocking(true);
+ }
-/////////////////////////////////////////////////////////////////////////////
-// wxSocket headers
-/////////////////////////////////////////////////////////////////////////////
-#include <wx/module.h>
-#define WXSOCK_INTERNAL
-#include <wx/sckaddr.h>
-#include <wx/socket.h>
-#include <wx/sckint.h>
-
-// ----------------------
-// Some patch ----- BEGIN
-// ----------------------
-#ifdef __WINDOWS__
-#define close closesocket
-#define ioctl ioctlsocket
-#ifdef errno
-#undef errno
-#endif
-#define errno WSAGetLastError()
-#ifdef EWOULDBLOCK
-#undef EWOULDBLOCK
-#endif
-#define EWOULDBLOCK WSAEWOULDBLOCK
-#define ETIMEDOUT WSAETIMEDOUT
-#undef EINTR
-#define EINTR WSAEINTR
-#endif
+ ~wxSocketUnblocker()
+ {
+ if ( m_unblock )
+ m_impl->SetNonBlocking(false);
+ }
-#ifndef __WINDOWS__
-#define INVALID_SOCKET -1
-#endif
+private:
+ wxSocketImpl * const m_impl;
+ bool m_unblock;
+
+ DECLARE_NO_COPY_CLASS(wxSocketUnblocker)
+};
+
+// ============================================================================
+// wxSocketManager
+// ============================================================================
-#ifdef __WINDOWS__
-// This is an MS TCP/IP routine and is not needed here. Some WinSock
-// implementations (such as PC-NFS) will require you to include this
-// or a similar routine (see appendix in WinSock doc or help file).
+wxSocketManager *wxSocketManager::ms_manager = NULL;
-#if defined( NEED_WSAFDIsSet ) || defined( __VISUALC__ )
-int PASCAL FAR __WSAFDIsSet(SOCKET fd, fd_set FAR *set)
+/* static */
+void wxSocketManager::Set(wxSocketManager *manager)
{
- int i = set->fd_count;
+ wxASSERT_MSG( !ms_manager, "too late to set manager now" );
- while (i--)
- {
- if (set->fd_array[i] == fd)
- return 1;
- }
+ ms_manager = manager;
+}
- return 0;
+/* static */
+void wxSocketManager::Init()
+{
+ wxASSERT_MSG( !ms_manager, "shouldn't be initialized twice" );
+
+ /*
+ 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(),
+ "sockets must be initialized from the main thread" );
+
+ wxAppConsole * const app = wxAppConsole::GetInstance();
+ wxCHECK_RET( app, "sockets can't be initialized without wxApp" );
+
+ ms_manager = app->GetTraits()->GetSocketManager();
}
-#endif
-#endif
-// -------------------
-// Some patch ---- END
-// -------------------
+// ==========================================================================
+// wxSocketImpl
+// ==========================================================================
-#ifdef GetClassInfo
-#undef GetClassInfo
-#endif
+wxSocketImpl::wxSocketImpl(wxSocketBase& wxsocket)
+ : m_wxsocket(&wxsocket)
+{
+ m_fd = INVALID_SOCKET;
+ m_detected = 0;
+ m_local = NULL;
+ m_peer = NULL;
+ m_error = wxSOCKET_NOERROR;
+ m_server = false;
+ m_stream = true;
+ m_non_blocking = false;
+
+ SetTimeout(wxsocket.GetTimeout() * 1000);
+
+ m_establishing = false;
+ m_reusable = false;
+ m_broadcast = false;
+ m_dobind = true;
+ m_initialRecvBufferSize = -1;
+ m_initialSendBufferSize = -1;
+}
-// --------------------------------------------------------------
-// Module
-// --------------------------------------------------------------
-class wxSocketModule: public wxModule
+wxSocketImpl::~wxSocketImpl()
{
- DECLARE_DYNAMIC_CLASS(wxSocketModule)
-public:
- wxSocketModule() {}
- bool OnInit();
- void OnExit();
-};
+ if (m_fd != INVALID_SOCKET)
+ Shutdown();
-// --------------------------------------------------------------
-// ClassInfos
-// --------------------------------------------------------------
-#if !USE_SHARED_LIBRARY
-IMPLEMENT_CLASS(wxSocketBase, wxObject)
-IMPLEMENT_CLASS(wxSocketServer, wxSocketBase)
-IMPLEMENT_CLASS(wxSocketClient, wxSocketBase)
-IMPLEMENT_CLASS(wxSocketHandler, wxObject)
-IMPLEMENT_DYNAMIC_CLASS(wxSocketEvent, wxEvent)
-IMPLEMENT_DYNAMIC_CLASS(wxSocketModule, wxModule)
-#endif
+ if (m_local)
+ GAddress_destroy(m_local);
-// --------------------------------------------------------------
-// --------- wxSocketBase CONSTRUCTOR ---------------------------
-// --------------------------------------------------------------
-wxSocketBase::wxSocketBase(wxSocketBase::wxSockFlags _flags,
- wxSocketBase::wxSockType _type) :
- wxEvtHandler(),
- m_flags(_flags), m_type(_type), m_connected(FALSE), m_connecting(FALSE),
- m_fd(INVALID_SOCKET), m_id(-1),
- m_handler(0),
- m_neededreq((wxRequestNotify)(REQ_READ | REQ_LOST)),
- m_timeout(3600),
- m_unread(NULL), m_unrd_size(0),
- m_cbk(NULL), m_cdata(NULL),
- m_notify_state(FALSE)
-{
- m_internal = new wxSocketInternal(this);
-}
-
-wxSocketBase::wxSocketBase() :
- wxEvtHandler(),
- m_flags(WAITALL), m_type(SOCK_UNINIT), m_connected(FALSE),
- m_connecting(FALSE), m_fd(INVALID_SOCKET),
- m_id(-1), m_handler(0),
- m_neededreq((wxRequestNotify)(REQ_READ | REQ_LOST)),
- m_timeout(3600),
- m_unread(NULL), m_unrd_size(0),
- m_cbk(NULL), m_cdata(NULL),
- m_notify_state(FALSE)
-{
- m_internal = new wxSocketInternal(this);
-}
-
-// --------------------------------------------------------------
-// wxSocketBase
-// --------------------------------------------------------------
+ if (m_peer)
+ GAddress_destroy(m_peer);
+}
-wxSocketBase::~wxSocketBase()
+bool wxSocketImpl::PreCreateCheck(GAddress *addr)
{
- // First, close the file descriptor.
- Close();
+ if ( m_fd != INVALID_SOCKET )
+ {
+ m_error = wxSOCKET_INVSOCK;
+ return false;
+ }
- m_internal->FinalizeSocket();
+ if ( !addr || !addr->m_addr )
+ {
+ m_error = wxSOCKET_INVADDR;
+ return false;
+ }
- if (m_unread)
- free(m_unread);
- // Unregister from the handler database.
- if (m_handler)
- m_handler->UnRegister(this);
+ 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
- // Destroy all saved states.
- m_states.DeleteContents(TRUE);
+ if ( m_reusable )
+ EnableSocketOption(SO_REUSEADDR);
+
+ if ( m_broadcast )
+ {
+ wxASSERT_MSG( !m_stream, "broadcasting is for datagram sockets only" );
+
+ EnableSocketOption(SO_BROADCAST);
+ }
- // Destroy the socket manager.
- delete m_internal;
+ if ( m_initialRecvBufferSize >= 0 )
+ SetSocketOption(SO_RCVBUF, m_initialRecvBufferSize);
+ if ( m_initialSendBufferSize >= 0 )
+ SetSocketOption(SO_SNDBUF, m_initialSendBufferSize);
+
+ // FIXME: shouldn't we check for m_non_blocking here? as it is now, all our
+ // sockets are non-blocking
+ UnblockAndRegisterWithEventLoop();
}
-bool wxSocketBase::Close()
+wxSocketError wxSocketImpl::UpdateLocalAddress()
{
- if (m_fd != INVALID_SOCKET)
- {
- // Pause all running socket thread.
- m_internal->PauseSocket();
-
- // Shutdown the connection.
- shutdown(m_fd, 2);
- close(m_fd);
- m_fd = INVALID_SOCKET;
- m_connected = FALSE;
- }
+ WX_SOCKLEN_T lenAddr;
+ if ( getsockname(m_fd, m_local->m_addr, &lenAddr) != 0 )
+ {
+ Close();
+ m_error = wxSOCKET_IOERR;
+ return m_error;
+ }
- return TRUE;
-}
+ m_local->m_len = lenAddr;
-// --------------------------------------------------------------
-// wxSocketBase base IO function
-// --------------------------------------------------------------
+ return wxSOCKET_NOERROR;
+}
-wxSocketBase& wxSocketBase::Read(char* buffer, size_t nbytes)
+wxSocketError wxSocketImpl::CreateServer()
{
- m_lcount = GetPushback(buffer, nbytes, FALSE);
- nbytes -= m_lcount;
- buffer += m_lcount;
+ if ( !PreCreateCheck(m_local) )
+ return m_error;
- // If we have got the whole needed buffer or if we don't want to
- // wait then it returns immediately.
- if (!nbytes || (m_lcount && !(m_flags & WAITALL)) ) {
- return *this;
- }
+ 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();
- WantBuffer(buffer, nbytes, EVT_READ);
+ // 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;
- return *this;
+ 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();
}
-wxSocketBase& wxSocketBase::Peek(char* buffer, size_t nbytes)
+wxSocketError wxSocketImpl::CreateClient()
{
- m_lcount = GetPushback(buffer, nbytes, TRUE);
- if (nbytes-m_lcount == 0)
- {
- return *this;
- }
- buffer += m_lcount;
- nbytes -= m_lcount;
+ 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;
+ }
- WantBuffer(buffer, nbytes, EVT_PEEK);
+ PostCreation();
- return *this;
+ // 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;
+ }
+ }
+
+ // Connect to the peer and handle the EWOULDBLOCK return value in
+ // platform-specific code
+ return DoHandleConnect(connect(m_fd, m_peer->m_addr, m_peer->m_len));
}
-wxSocketBase& wxSocketBase::Write(const char *buffer, size_t nbytes)
+
+wxSocketError wxSocketImpl::CreateUDP()
{
- m_lcount = 0;
- WantBuffer((char *)buffer, nbytes, EVT_WRITE);
- return *this;
+ 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;
}
-wxSocketBase& wxSocketBase::Unread(const char *buffer, size_t nbytes)
+
+void wxSocketImpl::Close()
{
- CreatePushbackAfter(buffer, nbytes);
- return *this;
+ if ( m_fd != INVALID_SOCKET )
+ {
+ DoClose();
+ m_fd = INVALID_SOCKET;
+ }
}
-bool wxSocketBase::IsData() const
+/*
+ * Disallow further read/write operations on this socket, close
+ * the fd and disable all callbacks.
+ */
+void wxSocketImpl::Shutdown()
{
- struct timeval tv;
- fd_set sock_set;
-
- if (m_fd < 0)
- return FALSE;
- if (m_unrd_size > 0)
- return TRUE;
-
- m_internal->AcquireFD();
-
- tv.tv_sec = 0;
- tv.tv_usec = 0;
- FD_ZERO(&sock_set);
- FD_SET(m_fd, &sock_set);
- select(FD_SETSIZE, &sock_set, NULL, NULL, &tv);
+ if ( m_fd != INVALID_SOCKET )
+ {
+ shutdown(m_fd, 1 /* SD_SEND */);
+ Close();
+ }
- m_internal->ReleaseFD();
+ m_detected = wxSOCKET_LOST_FLAG;
+}
- return (FD_ISSET(m_fd, &sock_set) != 0);
+/*
+ * Sets the timeout for blocking calls. Time is expressed in
+ * milliseconds.
+ */
+void wxSocketImpl::SetTimeout(unsigned long millis)
+{
+ m_timeout.tv_sec = (millis / 1000);
+ m_timeout.tv_usec = (millis % 1000) * 1000;
}
-// ---------------------------------------------------------------------
-// --------- wxSocketBase Discard(): deletes all byte in the input queue
-// ---------------------------------------------------------------------
-void wxSocketBase::Discard()
+void wxSocketImpl::NotifyOnStateChange(wxSocketNotify event)
{
-#define MAX_BUFSIZE (10*1024)
- char *my_data = new char[MAX_BUFSIZE];
- size_t recv_size = MAX_BUFSIZE;
+ m_wxsocket->OnRequest(event);
+}
- SaveState();
- SetFlags((wxSockFlags)(NOWAIT | SPEED));
+/* 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;
+ }
- while (recv_size == MAX_BUFSIZE)
+ /* check address */
+ if (address == NULL || address->m_family == wxSOCKET_NOFAMILY)
{
- recv_size = Read(my_data, MAX_BUFSIZE).LastCount();
+ m_error = wxSOCKET_INVADDR;
+ return wxSOCKET_INVADDR;
}
- RestoreState();
- delete [] my_data;
+ if (m_local)
+ GAddress_destroy(m_local);
-#undef MAX_BUFSIZE
+ m_local = GAddress_copy(address);
+
+ return wxSOCKET_NOERROR;
}
-// If what? Who seems to need unsigned int?
-// BTW uint isn't even defined on wxMSW for VC++ for some reason. Even if it
-// were, getpeername/getsockname don't take unsigned int*, they take int*.
-//
-// Under glibc 2.0.7, socketbits.h declares socklen_t to be unsigned int
-// and it uses *socklen_t as the 3rd parameter. Robert.
+wxSocketError wxSocketImpl::SetPeer(GAddress *address)
+{
+ /* check address */
+ if (address == NULL || address->m_family == wxSOCKET_NOFAMILY)
+ {
+ m_error = wxSOCKET_INVADDR;
+ return wxSOCKET_INVADDR;
+ }
-// JACS - How can we detect this?
-// Meanwhile, if your compiler complains about socklen_t,
-// switch lines below.
+ if (m_peer)
+ GAddress_destroy(m_peer);
-#if wxHAVE_GLIBC2
-# define wxSOCKET_INT socklen_t
-#else
-# define wxSOCKET_INT int
-#endif
+ m_peer = GAddress_copy(address);
-// --------------------------------------------------------------
-// wxSocketBase socket info functions
-// --------------------------------------------------------------
+ return wxSOCKET_NOERROR;
+}
-bool wxSocketBase::GetPeer(wxSockAddress& addr_man) const
+GAddress *wxSocketImpl::GetLocal()
{
- struct sockaddr my_addr;
- wxSOCKET_INT len_addr = sizeof(my_addr);
-
- if (m_fd < 0)
- return FALSE;
+ GAddress *address;
+ wxSockAddr addr;
+ WX_SOCKLEN_T size = sizeof(addr);
+ wxSocketError err;
- m_internal->AcquireFD();
+ /* try to get it from the m_local var first */
+ if (m_local)
+ return GAddress_copy(m_local);
- if (getpeername(m_fd, (struct sockaddr *)&my_addr, &len_addr) < 0) {
- m_internal->ReleaseFD();
- return FALSE;
+ /* else, if the socket is initialized, try getsockname */
+ if (m_fd == INVALID_SOCKET)
+ {
+ m_error = wxSOCKET_INVSOCK;
+ return NULL;
}
- m_internal->ReleaseFD();
- addr_man.Disassemble(&my_addr, len_addr);
- return TRUE;
-}
+ if (getsockname(m_fd, (sockaddr*)&addr, &size) == SOCKET_ERROR)
+ {
+ m_error = wxSOCKET_IOERR;
+ return NULL;
+ }
-bool wxSocketBase::GetLocal(wxSockAddress& addr_man) const
-{
- struct sockaddr my_addr;
- wxSOCKET_INT len_addr = sizeof(my_addr);
+ /* got a valid address from getsockname, create a GAddress object */
+ if ((address = GAddress_new()) == NULL)
+ {
+ m_error = wxSOCKET_MEMERR;
+ return NULL;
+ }
- if (m_fd < 0)
- return FALSE;
+ if ((err = _GAddress_translate_from(address, (sockaddr*)&addr, size)) != wxSOCKET_NOERROR)
+ {
+ GAddress_destroy(address);
+ m_error = err;
+ return NULL;
+ }
- m_internal->AcquireFD();
+ return address;
+}
- if (getsockname(m_fd, (struct sockaddr *)&my_addr, &len_addr) < 0) {
- m_internal->ReleaseFD();
- return FALSE;
- }
- m_internal->ReleaseFD();
+GAddress *wxSocketImpl::GetPeer()
+{
+ /* try to get it from the m_peer var */
+ if (m_peer)
+ return GAddress_copy(m_peer);
- addr_man.Disassemble(&my_addr, len_addr);
- return TRUE;
+ return NULL;
}
-// --------------------------------------------------------------
-// wxSocketBase wait functions
-// --------------------------------------------------------------
+// ==========================================================================
+// wxSocketBase
+// ==========================================================================
-void wxSocketBase::SaveState()
-{
- SocketState *state = new SocketState;
+// --------------------------------------------------------------------------
+// Initialization and shutdown
+// --------------------------------------------------------------------------
- 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;
+// 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;
- m_states.Append((wxObject *)state);
+bool wxSocketBase::IsInitialized()
+{
+ return m_countInit > 0;
}
-void wxSocketBase::RestoreState()
+bool wxSocketBase::Initialize()
{
- wxNode *node;
- SocketState *state;
+ if ( !m_countInit++ )
+ {
+ wxSocketManager * const manager = wxSocketManager::Get();
+ if ( !manager || !manager->OnInit() )
+ {
+ m_countInit--;
- node = m_states.Last();
- if (!node)
- return;
+ return false;
+ }
+ }
- state = (SocketState *)node->Data();
+ return true;
+}
- 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);
+void wxSocketBase::Shutdown()
+{
+ // we should be initialized
+ wxASSERT_MSG( m_countInit > 0, _T("extra call to Shutdown()") );
+ if ( --m_countInit == 0 )
+ {
+ wxSocketManager * const manager = wxSocketManager::Get();
+ wxCHECK_RET( manager, "should have a socket manager" );
- delete node;
- delete state;
+ manager->OnExit();
+ }
}
-// --------------------------------------------------------------
-// --------- wxSocketBase callback functions --------------------
-// --------------------------------------------------------------
+// --------------------------------------------------------------------------
+// Ctor and dtor
+// --------------------------------------------------------------------------
-wxSocketBase::wxSockCbk wxSocketBase::Callback(wxSockCbk cbk_)
+void wxSocketBase::Init()
{
- wxSockCbk old_cbk = cbk_;
+ m_impl = NULL;
+ m_type = wxSOCKET_UNINIT;
+
+ // state
+ m_flags = 0;
+ m_connected =
+ m_establishing =
+ m_reading =
+ m_writing =
+ m_error =
+ m_closed = 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();
+ }
+}
- m_cbk = cbk_;
- return old_cbk;
+wxSocketBase::wxSocketBase()
+{
+ Init();
}
-char *wxSocketBase::CallbackData(char *data)
+wxSocketBase::wxSocketBase(wxSocketFlags flags, wxSocketType type)
{
- char *old_data = m_cdata;
+ Init();
+
+ SetFlags(flags);
- m_cdata = data;
- return old_data;
+ m_type = type;
}
-// --------------------------------------------------------------
-// --------- wxSocketBase wait functions ------------------------
-// --------------------------------------------------------------
+wxSocketBase::~wxSocketBase()
+{
+ // Just in case the app called Destroy() *and* then deleted the socket
+ // immediately: don't leave dangling pointers.
+ wxAppTraits *traits = wxTheApp ? wxTheApp->GetTraits() : NULL;
+ if ( traits )
+ traits->RemoveFromPendingDelete(this);
+
+ // Shutdown and close the socket
+ if (!m_beingDeleted)
+ Close();
+
+ // Destroy the implementation object
+ delete m_impl;
+
+ // Free the pushback buffer
+ if (m_unread)
+ free(m_unread);
+}
-bool wxSocketBase::_Wait(long seconds, long milliseconds, int type)
+bool wxSocketBase::Destroy()
{
- SockRequest *req;
+ // 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;
- if ((!m_connected && !m_connecting) || m_fd < 0)
- return FALSE;
+ // Shutdown and close the socket
+ Close();
- req = new SockRequest;
+ // Supress events from now on
+ Notify(false);
- req->type = REQ_WAIT | type;
- req->timeout = seconds * 1000 + milliseconds;
- req->done = FALSE;
- req->buffer = NULL;
- req->size = 0;
- req->error = 0;
- req->wait = TRUE;
- m_internal->QueueRequest(req, 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 (req->io_nbytes != 0);
+ return true;
}
-bool wxSocketBase::Wait(long seconds, long milliseconds)
-{
- return _Wait(seconds, milliseconds, REQ_ACCEPT | REQ_CONNECT |
- REQ_READ | REQ_WRITE | REQ_LOST);
-}
+// ----------------------------------------------------------------------------
+// simply accessors
+// ----------------------------------------------------------------------------
-bool wxSocketBase::WaitForRead(long seconds, long milliseconds)
+wxSocketError wxSocketBase::LastError() const
{
- return _Wait(seconds, milliseconds, REQ_READ | REQ_LOST);
+ return m_impl->GetError();
}
-bool wxSocketBase::WaitForWrite(long seconds, long milliseconds)
+// --------------------------------------------------------------------------
+// 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()
{
- return _Wait(seconds, milliseconds, REQ_WRITE);
+ // Interrupt pending waits
+ InterruptWait();
+
+ if (m_impl)
+ m_impl->Shutdown();
+
+ m_connected = false;
+ m_establishing = false;
+ return true;
}
-bool wxSocketBase::WaitForLost(long seconds, long milliseconds)
+wxSocketBase& wxSocketBase::Read(void* buffer, wxUint32 nbytes)
{
- return _Wait(seconds, milliseconds, REQ_LOST);
-}
+ // Mask read events
+ m_reading = true;
-// --------------------------------------------------------------
-// --------- wxSocketBase callback management -------------------
-// --------------------------------------------------------------
+ m_lcount = DoRead(buffer, nbytes);
-wxSocketBase::wxRequestNotify wxSocketBase::EventToNotify(wxRequestEvent evt)
-{
- switch (evt)
- {
- case EVT_READ:
- return REQ_READ;
- case EVT_PEEK:
- return REQ_PEEK;
- case EVT_WRITE:
- return REQ_WRITE;
- case EVT_LOST:
- return REQ_LOST;
- case EVT_ACCEPT:
- return REQ_ACCEPT;
- case EVT_CONNECT:
- return REQ_CONNECT;
- }
- return 0;
+ // If in wxSOCKET_WAITALL mode, all bytes should have been read.
+ if (m_flags & wxSOCKET_WAITALL)
+ m_error = (m_lcount != nbytes);
+ else
+ m_error = (m_lcount == 0);
+
+ // Allow read events from now on
+ m_reading = false;
+
+ return *this;
}
-void wxSocketBase::SetFlags(wxSockFlags _flags)
+wxUint32 wxSocketBase::DoRead(void* buffer_, wxUint32 nbytes)
{
- m_flags = _flags;
- if (_flags & SPEED) {
- // SPEED and WAITALL are antagonists.
- m_flags = (wxSockFlags)(m_flags & ~WAITALL);
- }
+ // We use pointer arithmetic here which doesn't work with void pointers.
+ char *buffer = static_cast<char *>(buffer_);
+
+ // Try the push back buffer first, even before checking whether the socket
+ // is valid to allow reading previously pushed back data from an already
+ // closed socket.
+ wxUint32 total = GetPushback(buffer, nbytes, false);
+ nbytes -= total;
+ buffer += total;
+
+ // If it's indeed closed or if read everything, there is nothing more to do.
+ if ( !m_impl || !nbytes )
+ return total;
+
+ wxCHECK_MSG( buffer, 0, "NULL buffer" );
+
+
+ // wxSOCKET_NOWAIT overrides all the other flags and means that we are
+ // polling the socket and don't block at all.
+ if ( m_flags & wxSOCKET_NOWAIT )
+ {
+ wxSocketUnblocker unblock(m_impl);
+ int ret = m_impl->Read(buffer, nbytes);
+ if ( ret < 0 )
+ return 0;
+
+ total += ret;
+ }
+ else // blocking socket
+ {
+ 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() )
+ break;
+
+ const int ret = m_impl->Read(buffer, nbytes);
+ if ( ret == 0 )
+ {
+ // for connection-oriented (e.g. TCP) sockets we can only read
+ // 0 bytes if the other end has been closed, and for
+ // connectionless ones (UDP) this flag doesn't make sense
+ // anyhow so we can set it to true too without doing any harm
+ m_closed = true;
+ break;
+ }
+
+ if ( ret < 0 )
+ {
+ // this will be always interpreted as error by Read()
+ return 0;
+ }
+
+ total += ret;
+
+ // If wxSOCKET_WAITALL is not set, we can leave now as we did read
+ // something and we don't need to wait for all nbytes bytes to be
+ // read.
+ if ( !(m_flags & wxSOCKET_WAITALL) )
+ break;
+
+ // Otherwise continue reading until we do read everything.
+ nbytes -= ret;
+ if ( !nbytes )
+ break;
+
+ buffer += ret;
+ }
+ }
+
+ return total;
}
-wxSocketBase::wxSockFlags wxSocketBase::GetFlags() const
+wxSocketBase& wxSocketBase::ReadMsg(void* buffer, wxUint32 nbytes)
{
- return m_flags;
+ wxUint32 len, len2, sig, total;
+ bool error;
+ int old_flags;
+ struct
+ {
+ unsigned char sig[4];
+ unsigned char len[4];
+ } msg;
+
+ // Mask read events
+ m_reading = true;
+
+ total = 0;
+ error = true;
+ old_flags = m_flags;
+ SetFlags((m_flags & wxSOCKET_BLOCK) | wxSOCKET_WAITALL);
+
+ if (DoRead(&msg, sizeof(msg)) != sizeof(msg))
+ goto exit;
+
+ sig = (wxUint32)msg.sig[0];
+ sig |= (wxUint32)(msg.sig[1] << 8);
+ sig |= (wxUint32)(msg.sig[2] << 16);
+ sig |= (wxUint32)(msg.sig[3] << 24);
+
+ if (sig != 0xfeeddead)
+ {
+ wxLogWarning(_("wxSocket: invalid signature in ReadMsg."));
+ goto exit;
+ }
+
+ len = (wxUint32)msg.len[0];
+ len |= (wxUint32)(msg.len[1] << 8);
+ len |= (wxUint32)(msg.len[2] << 16);
+ len |= (wxUint32)(msg.len[3] << 24);
+
+ if (len > nbytes)
+ {
+ len2 = len - nbytes;
+ len = nbytes;
+ }
+ else
+ len2 = 0;
+
+ // Don't attempt to read if the msg was zero bytes long.
+ if (len)
+ {
+ total = DoRead(buffer, len);
+
+ if (total != len)
+ goto exit;
+ }
+
+ if (len2)
+ {
+ char *discard_buffer = new char[MAX_DISCARD_SIZE];
+ long discard_len;
+
+ // NOTE: discarded bytes don't add to m_lcount.
+ do
+ {
+ discard_len = ((len2 > MAX_DISCARD_SIZE)? MAX_DISCARD_SIZE : len2);
+ discard_len = DoRead(discard_buffer, (wxUint32)discard_len);
+ len2 -= (wxUint32)discard_len;
+ }
+ while ((discard_len > 0) && len2);
+
+ delete [] discard_buffer;
+
+ if (len2 != 0)
+ goto exit;
+ }
+ if (DoRead(&msg, sizeof(msg)) != sizeof(msg))
+ goto exit;
+
+ sig = (wxUint32)msg.sig[0];
+ sig |= (wxUint32)(msg.sig[1] << 8);
+ sig |= (wxUint32)(msg.sig[2] << 16);
+ sig |= (wxUint32)(msg.sig[3] << 24);
+
+ if (sig != 0xdeadfeed)
+ {
+ wxLogWarning(_("wxSocket: invalid signature in ReadMsg."));
+ goto exit;
+ }
+
+ // everything was OK
+ error = false;
+
+exit:
+ m_error = error;
+ m_lcount = total;
+ m_reading = false;
+ SetFlags(old_flags);
+
+ return *this;
}
-void wxSocketBase::SetNotify(wxRequestNotify flags)
+wxSocketBase& wxSocketBase::Peek(void* buffer, wxUint32 nbytes)
{
- /* Check if server */
- if (m_type != SOCK_SERVER)
- flags &= ~REQ_ACCEPT;
+ // Mask read events
+ m_reading = true;
+
+ m_lcount = DoRead(buffer, nbytes);
+ Pushback(buffer, m_lcount);
- m_neededreq = flags;
- if (m_neededreq == 0)
- m_internal->DisableWaiter();
- else
- Notify(m_notify_state);
+ // If in wxSOCKET_WAITALL mode, all bytes should have been read.
+ if (m_flags & wxSOCKET_WAITALL)
+ m_error = (m_lcount != nbytes);
+ else
+ m_error = (m_lcount == 0);
+
+ // Allow read events again
+ m_reading = false;
+
+ return *this;
}
-void wxSocketBase::Notify(bool notify)
+wxSocketBase& wxSocketBase::Write(const void *buffer, wxUint32 nbytes)
{
- m_notify_state = notify;
- if (m_fd == INVALID_SOCKET)
- return;
+ // Mask write events
+ m_writing = true;
+
+ m_lcount = DoWrite(buffer, nbytes);
+
+ // If in wxSOCKET_WAITALL mode, all bytes should have been written.
+ if (m_flags & wxSOCKET_WAITALL)
+ m_error = (m_lcount != nbytes);
+ else
+ m_error = (m_lcount == 0);
- if (notify)
- m_internal->EnableWaiter();
- else
- m_internal->DisableWaiter();
+ // Allow write events again
+ m_writing = false;
+
+ return *this;
}
-void wxSocketBase::OnRequest(wxRequestEvent req_evt)
+// This function is a mirror image of DoRead() except that it doesn't use the
+// push back buffer, please see comments there
+wxUint32 wxSocketBase::DoWrite(const void *buffer_, wxUint32 nbytes)
{
- wxSocketEvent event(m_id);
- wxRequestNotify notify = EventToNotify(req_evt);
+ const char *buffer = static_cast<const char *>(buffer_);
- if ((m_neededreq & notify) == notify) {
- event.m_socket = this;
- event.m_skevt = req_evt;
- ProcessEvent(event);
- // TODOTODO
- // OldOnNotify(req_evt);
+ // Return if there is nothing to read or the socket is (already?) closed.
+ if ( !m_impl || !nbytes )
+ return 0;
- // We disable the event reporting.
- SetNotify(m_neededreq & ~notify);
- }
+ wxCHECK_MSG( buffer, 0, "NULL buffer" );
+
+ wxUint32 total = 0;
+ if ( m_flags & wxSOCKET_NOWAIT )
+ {
+ wxSocketUnblocker unblock(m_impl);
+ const int ret = m_impl->Write(buffer, nbytes);
+ if ( ret > 0 )
+ total += ret;
+ }
+ else // blocking socket
+ {
+ for ( ;; )
+ {
+ if ( !(m_flags & wxSOCKET_BLOCK) && !WaitForWrite() )
+ break;
+
+ const int ret = m_impl->Write(buffer, nbytes);
+ if ( ret == 0 )
+ {
+ m_closed = true;
+ break;
+ }
+
+ if ( ret < 0 )
+ return 0;
+
+ total += ret;
+ if ( !(m_flags & wxSOCKET_WAITALL) )
+ break;
+
+ nbytes -= ret;
+ if ( !nbytes )
+ break;
+
+ buffer += ret;
+ }
+ }
+
+ return total;
}
-wxSocketEvent::wxSocketEvent(int id)
- : wxEvent(id)
+wxSocketBase& wxSocketBase::WriteMsg(const void *buffer, wxUint32 nbytes)
{
- wxEventType type = (wxEventType)wxEVT_SOCKET;
+ wxUint32 total;
+ bool error;
+ struct
+ {
+ unsigned char sig[4];
+ unsigned char len[4];
+ } msg;
+
+ // Mask write events
+ m_writing = true;
- SetEventType(type);
+ error = true;
+ total = 0;
+ SetFlags((m_flags & wxSOCKET_BLOCK) | wxSOCKET_WAITALL);
+
+ msg.sig[0] = (unsigned char) 0xad;
+ msg.sig[1] = (unsigned char) 0xde;
+ msg.sig[2] = (unsigned char) 0xed;
+ msg.sig[3] = (unsigned char) 0xfe;
+
+ msg.len[0] = (unsigned char) (nbytes & 0xff);
+ msg.len[1] = (unsigned char) ((nbytes >> 8) & 0xff);
+ msg.len[2] = (unsigned char) ((nbytes >> 16) & 0xff);
+ msg.len[3] = (unsigned char) ((nbytes >> 24) & 0xff);
+
+ if (DoWrite(&msg, sizeof(msg)) < sizeof(msg))
+ goto exit;
+
+ total = DoWrite(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 ((DoWrite(&msg, sizeof(msg))) < sizeof(msg))
+ goto exit;
+
+ // everything was OK
+ error = false;
+
+exit:
+ m_error = error;
+ m_lcount = total;
+ m_writing = false;
+
+ return *this;
}
-void wxSocketEvent::CopyObject(wxObject& obj_d) const
+wxSocketBase& wxSocketBase::Unread(const void *buffer, wxUint32 nbytes)
{
- wxSocketEvent *event = (wxSocketEvent *)&obj_d;
+ if (nbytes != 0)
+ Pushback(buffer, nbytes);
- wxEvent::CopyObject(obj_d);
+ m_error = false;
+ m_lcount = nbytes;
- event->m_skevt = m_skevt;
- event->m_socket = m_socket;
+ return *this;
}
-void wxSocketBase::OldOnNotify(wxRequestEvent evt)
+wxSocketBase& wxSocketBase::Discard()
{
-}
+ char *buffer = new char[MAX_DISCARD_SIZE];
+ wxUint32 ret;
+ wxUint32 total = 0;
-// --------------------------------------------------------------
-// --------- wxSocketBase functions [Callback, CallbackData] ----
-// --------------------------------------------------------------
+ // Mask read events
+ m_reading = true;
-void wxSocketBase::SetEventHandler(wxEvtHandler& h_evt, int id)
-{
- SetNextHandler(&h_evt);
- m_id = id;
-}
+ SetFlags(wxSOCKET_NOWAIT);
-// --------------------------------------------------------------
-// --------- wxSocketBase pushback library ----------------------
-// --------------------------------------------------------------
+ do
+ {
+ ret = DoRead(buffer, MAX_DISCARD_SIZE);
+ total += ret;
+ }
+ while (ret == MAX_DISCARD_SIZE);
-void wxSocketBase::CreatePushbackAfter(const char *buffer, size_t size)
-{
- char *curr_pos;
+ delete[] buffer;
+ m_lcount = total;
+ m_error = false;
- 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;
+ // Allow read events again
+ m_reading = false;
- memcpy(curr_pos, buffer, size);
- m_unrd_size += size;
+ return *this;
}
-void wxSocketBase::CreatePushbackBefore(const char *buffer, size_t size)
+// --------------------------------------------------------------------------
+// Wait functions
+// --------------------------------------------------------------------------
+
+/*
+ * 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.
+ */
+wxSocketEventFlags wxSocketImpl::Select(wxSocketEventFlags flags)
{
- char *curr_pos, *new_buf;
+ assert(this);
- new_buf = (char *) malloc(m_unrd_size+size);
- curr_pos = new_buf + size;
+ wxSocketEventFlags result = 0;
+ fd_set readfds;
+ fd_set writefds;
+ fd_set exceptfds;
+ struct timeval tv;
+
+ if (m_fd == -1)
+ return (wxSOCKET_LOST_FLAG & flags);
- memcpy(new_buf, buffer, size);
- if (m_unrd_size != 0) {
- memcpy(curr_pos, m_unread, m_unrd_size);
- free(m_unread);
+ /* 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 & wxSOCKET_OUTPUT_FLAG || flags & wxSOCKET_CONNECTION_FLAG)
+ wxFD_SET(m_fd, &writefds);
+ wxFD_SET(m_fd, &exceptfds);
+
+ /* Check 'sticky' CONNECTION flag first */
+ 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 & wxSOCKET_LOST_FLAG) != 0)
+ {
+ m_establishing = false;
+ return (wxSOCKET_LOST_FLAG & flags);
}
- m_unread = new_buf;
- m_unrd_size += size;
-}
-size_t wxSocketBase::GetPushback(char *buffer, size_t size, bool peek)
-{
- if (!m_unrd_size)
- return 0;
+ /* Try select now */
+ if (select(m_fd + 1, &readfds, &writefds, &exceptfds, &tv) < 0)
+ {
+ /* What to do here? */
+ return (result & flags);
+ }
+
+ /* Check for exceptions and errors */
+ if (wxFD_ISSET(m_fd, &exceptfds))
+ {
+ m_establishing = false;
+ m_detected = wxSOCKET_LOST_FLAG;
+
+ /* LOST event: Abort any further processing */
+ return (wxSOCKET_LOST_FLAG & flags);
+ }
- if (size > m_unrd_size)
- size = m_unrd_size;
- memcpy(buffer, m_unread, size);
+ /* Check for readability */
+ if (wxFD_ISSET(m_fd, &readfds))
+ {
+ result |= wxSOCKET_INPUT_FLAG;
- if (!peek) {
- m_unrd_size -= size;
- if (m_unrd_size == 0) {
- free(m_unread);
- m_unread = NULL;
+ 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 |= wxSOCKET_CONNECTION_FLAG;
}
}
- return size;
+ /* Check for writability */
+ if (wxFD_ISSET(m_fd, &writefds))
+ {
+ if (m_establishing && !m_server)
+ {
+ int error;
+ SOCKOPTLEN_T len = sizeof(error);
+ m_establishing = false;
+ getsockopt(m_fd, SOL_SOCKET, SO_ERROR, (char*)&error, &len);
+
+ if (error)
+ {
+ m_detected = wxSOCKET_LOST_FLAG;
+
+ /* LOST event: Abort any further processing */
+ return (wxSOCKET_LOST_FLAG & flags);
+ }
+ else
+ {
+ m_detected |= wxSOCKET_CONNECTION_FLAG;
+ }
+ }
+ else
+ {
+ result |= wxSOCKET_OUTPUT_FLAG;
+ }
+ }
+
+ return (result | m_detected) & flags;
}
-// --------------------------------------------------------------
-// --------- wxSocketBase buffer core requester -----------------
-// --------------------------------------------------------------
+// All Wait functions poll the socket using 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.
-void wxSocketBase::WantBuffer(char *buffer, size_t nbytes,
- wxRequestEvent evt)
+bool
+wxSocketBase::DoWait(long seconds, long milliseconds, wxSocketEventFlags flags)
{
- bool buf_timed_out;
+ wxCHECK_MSG( m_impl, false, "can't wait on invalid socket" );
- if (m_fd == INVALID_SOCKET || !m_handler || !m_connected)
- return;
+ // This can be set to true from Interrupt() to exit this function a.s.a.p.
+ m_interrupt = false;
- SockRequest *buf = new SockRequest;
- SaveState();
- m_internal->DisableWaiter();
- buf->buffer = buffer;
- buf->size = nbytes;
- buf->done = FALSE;
- buf->type = EventToNotify(evt);
- buf->io_nbytes = 0;
- buf->error = 0;
- buf->wait = TRUE;
- buf->timeout = 1000;
- buf_timed_out = FALSE;
+ // Use either the provided timeout or the default timeout value associated
+ // with this socket.
+ //
+ // TODO: allow waiting forever, see #9443
+ const long timeout = seconds == -1 ? m_timeout * 1000
+ : seconds * 1000 + milliseconds;
+ const wxMilliClock_t timeEnd = wxGetLocalTimeMillis() + timeout;
- if (m_flags & SPEED)
- m_internal->QueueRequest(buf, FALSE);
- else
- if (m_flags & NOWAIT)
- m_internal->QueueRequest(buf, TRUE);
- else
- m_internal->QueueRequest(buf, TRUE);
- m_lcount += buf->io_nbytes;
- if (buf_timed_out)
- m_error = ETIMEDOUT;
- else
- m_error = buf->error;
+ // Get the active event loop which we'll use for the message dispatching
+ // when running in the main thread
+ wxEventLoopBase *eventLoop;
+ if ( wxIsMainThread() )
+ {
+ eventLoop = wxEventLoop::GetActive();
+ }
+ else // in worker thread
+ {
+ // We never dispatch messages from threads other than the main one.
+ 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).
+ bool gotEvent = false;
+ for ( ;; )
+ {
+ // We always stop waiting when the connection is lost as it doesn't
+ // make sense to continue further, even if wxSOCKET_LOST_FLAG is not
+ // specified in flags to wait for.
+ const wxSocketEventFlags
+ result = m_impl->Select(flags | wxSOCKET_LOST_FLAG);
+
+ // Incoming connection (server) or connection established (client)?
+ if ( result & wxSOCKET_CONNECTION_FLAG )
+ {
+ m_connected = true;
+ m_establishing = false;
+ gotEvent = true;
+ break;
+ }
+
+ // Data available or output buffer ready?
+ if ( (result & wxSOCKET_INPUT_FLAG) || (result & wxSOCKET_OUTPUT_FLAG) )
+ {
+ gotEvent = true;
+ break;
+ }
+
+ // Connection lost
+ if ( result & wxSOCKET_LOST_FLAG )
+ {
+ m_connected = false;
+ m_establishing = false;
+ if ( flags & wxSOCKET_LOST_FLAG )
+ gotEvent = true;
+ break;
+ }
+
+ if ( m_interrupt )
+ break;
+
+ // Wait more?
+ const wxMilliClock_t timeNow = wxGetLocalTimeMillis();
+ if ( timeNow >= timeEnd )
+ break;
+
+ if ( eventLoop )
+ {
+ // 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();
+ }
+#if wxUSE_THREADS
+ else // no event loop or waiting in another thread
+ {
+ // We're busy waiting but at least give up the rest of our current
+ // time slice.
+ wxThread::Yield();
+ }
+#endif // wxUSE_THREADS
+ }
- delete buf;
- RestoreState();
+ return gotEvent;
}
-// --------------------------------------------------------------
-// wxSocketServer
-// --------------------------------------------------------------
+bool wxSocketBase::Wait(long seconds, long milliseconds)
+{
+ return DoWait(seconds, milliseconds,
+ wxSOCKET_INPUT_FLAG |
+ wxSOCKET_OUTPUT_FLAG |
+ wxSOCKET_CONNECTION_FLAG |
+ wxSOCKET_LOST_FLAG
+ );
+}
-wxSocketServer::wxSocketServer(wxSockAddress& addr_man,
- wxSockFlags flags) :
- wxSocketBase(flags, SOCK_SERVER)
+bool wxSocketBase::WaitForRead(long seconds, long milliseconds)
{
- m_fd = socket(addr_man.GetFamily(), SOCK_STREAM, 0);
+ // Check pushback buffer before entering DoWait
+ if ( m_unread )
+ return true;
+
+ // 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 Read call will return immediately, not that there is
+ // actually data to read.
+ return DoWait(seconds, milliseconds, wxSOCKET_INPUT_FLAG | wxSOCKET_LOST_FLAG);
+}
- if (m_fd == INVALID_SOCKET)
- return;
- int flag = 1;
- setsockopt(m_fd, SOL_SOCKET, SO_REUSEADDR, (char*)&flag, sizeof(int));
+bool wxSocketBase::WaitForWrite(long seconds, long milliseconds)
+{
+ return DoWait(seconds, milliseconds, wxSOCKET_OUTPUT_FLAG | wxSOCKET_LOST_FLAG);
+}
+
+bool wxSocketBase::WaitForLost(long seconds, long milliseconds)
+{
+ return DoWait(seconds, milliseconds, wxSOCKET_LOST_FLAG);
+}
- struct sockaddr *myaddr;
- size_t len;
+// --------------------------------------------------------------------------
+// Miscellaneous
+// --------------------------------------------------------------------------
- addr_man.Build(myaddr, len);
- if (bind(m_fd, myaddr, addr_man.SockAddrLen()) < 0)
- return;
+//
+// Get local or peer address
+//
- if (listen(m_fd, 5) < 0) {
- m_fd = INVALID_SOCKET;
- return;
- }
+bool wxSocketBase::GetPeer(wxSockAddress& addr_man) const
+{
+ GAddress *peer;
- m_internal->InitializeSocket();
-}
+ if (!m_impl)
+ return false;
+
+ peer = m_impl->GetPeer();
+
+ // copying a null address would just trigger an assert anyway
+
+ if (!peer)
+ return false;
-// --------------------------------------------------------------
-// wxSocketServer Accept
-// --------------------------------------------------------------
+ addr_man.SetAddress(peer);
+ GAddress_destroy(peer);
-bool wxSocketServer::AcceptWith(wxSocketBase& sock)
+ return true;
+}
+
+bool wxSocketBase::GetLocal(wxSockAddress& addr_man) const
{
- int fd2;
+ GAddress *local;
- m_internal->AcquireFD();
- if ((fd2 = accept(m_fd, 0, 0)) < 0) {
- m_internal->ReleaseFD();
- return FALSE;
- }
- m_internal->ReleaseFD();
+ if (!m_impl)
+ return false;
+
+ local = m_impl->GetLocal();
+ addr_man.SetAddress(local);
+ GAddress_destroy(local);
- struct linger linger;
- linger.l_onoff = 0;
- linger.l_linger = 1;
+ return true;
+}
- setsockopt(fd2, SOL_SOCKET, SO_LINGER, (char*)&linger, sizeof(linger));
+//
+// Save and restore socket state
+//
- int flag = 0;
- setsockopt(fd2, SOL_SOCKET, SO_KEEPALIVE, (char*)&flag, sizeof(int));
+void wxSocketBase::SaveState()
+{
+ wxSocketState *state;
- sock.m_type = SOCK_INTERNAL;
- sock.m_fd = fd2;
- sock.m_connected = TRUE;
+ state = new wxSocketState();
- sock.m_internal->InitializeSocket();
+ state->m_flags = m_flags;
+ state->m_notify = m_notify;
+ state->m_eventmask = m_eventmask;
+ state->m_clientData = m_clientData;
- return TRUE;
+ m_states.Append(state);
}
-wxSocketBase *wxSocketServer::Accept()
+void wxSocketBase::RestoreState()
{
- wxSocketBase* sock = new wxSocketBase();
+ wxList::compatibility_iterator node;
+ wxSocketState *state;
- sock->SetFlags((wxSockFlags)m_flags);
+ node = m_states.GetLast();
+ if (!node)
+ return;
- if (!AcceptWith(*sock))
- return NULL;
+ state = (wxSocketState *)node->GetData();
- if (m_handler)
- m_handler->Register(sock);
+ m_flags = state->m_flags;
+ m_notify = state->m_notify;
+ m_eventmask = state->m_eventmask;
+ m_clientData = state->m_clientData;
- return sock;
+ m_states.Erase(node);
+ delete state;
}
-// --------------------------------------------------------------
-// wxSocketClient
-// --------------------------------------------------------------
+//
+// Timeout and flags
+//
-// --------- wxSocketClient CONSTRUCTOR -------------------------
-// --------------------------------------------------------------
-wxSocketClient::wxSocketClient(wxSockFlags _flags) :
- wxSocketBase(_flags, SOCK_CLIENT)
+void wxSocketBase::SetTimeout(long seconds)
{
+ m_timeout = seconds;
+
+ if (m_impl)
+ m_impl->SetTimeout(m_timeout * 1000);
}
-// --------------------------------------------------------------
-// --------- wxSocketClient DESTRUCTOR --------------------------
-// --------------------------------------------------------------
-wxSocketClient::~wxSocketClient()
+void wxSocketBase::SetFlags(wxSocketFlags flags)
{
+ // Do some sanity checking on the flags used: not all values can be used
+ // together.
+ wxASSERT_MSG( !(flags & wxSOCKET_NOWAIT) ||
+ !(flags & (wxSOCKET_WAITALL | wxSOCKET_BLOCK)),
+ "Using wxSOCKET_WAITALL or wxSOCKET_BLOCK with "
+ "wxSOCKET_NOWAIT doesn't make sense" );
+
+ m_flags = flags;
}
-// --------------------------------------------------------------
-// --------- wxSocketClient Connect functions -------------------
-// --------------------------------------------------------------
-bool wxSocketClient::Connect(wxSockAddress& addr_man, bool WXUNUSED(wait) )
-{
- struct linger linger;
- if (IsConnected())
- Close();
+// --------------------------------------------------------------------------
+// Event handling
+// --------------------------------------------------------------------------
- // Initializes all socket stuff ...
- // --------------------------------
- m_fd = socket(addr_man.GetFamily(), SOCK_STREAM, 0);
+void wxSocketBase::OnRequest(wxSocketNotify notification)
+{
+ 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_impl->Select(wxSOCKET_INPUT_FLAG))
+ return;
+ break;
+
+ case wxSOCKET_OUTPUT:
+ if (m_writing || !m_impl->Select(wxSOCKET_OUTPUT_FLAG))
+ return;
+ break;
+
+ case wxSOCKET_LOST:
+ m_connected = false;
+ m_establishing = false;
+ break;
+
+ case wxSOCKET_MAX_EVENT:
+ wxFAIL_MSG( "unexpected notification" );
+ return;
+ }
- if (m_fd < 0)
- return FALSE;
+ // Schedule the event
- m_connected = FALSE;
+ wxSocketEventFlags flag = 0;
+ wxUnusedVar(flag);
+ switch (notification)
+ {
+ case wxSOCKET_INPUT: flag = wxSOCKET_INPUT_FLAG; break;
+ case wxSOCKET_OUTPUT: flag = wxSOCKET_OUTPUT_FLAG; break;
+ case wxSOCKET_CONNECTION: flag = wxSOCKET_CONNECTION_FLAG; break;
+ case wxSOCKET_LOST: flag = wxSOCKET_LOST_FLAG; break;
+ default:
+ wxLogWarning(_("wxSocket: unknown event!."));
+ return;
+ }
- linger.l_onoff = 1;
- linger.l_linger = 5;
- setsockopt(m_fd, SOL_SOCKET, SO_LINGER, (char*)&linger, sizeof(linger));
+ if (((m_eventmask & flag) == flag) && m_notify)
+ {
+ if (m_handler)
+ {
+ wxSocketEvent event(m_id);
+ event.m_event = notification;
+ event.m_clientData = m_clientData;
+ event.SetEventObject(this);
+
+ m_handler->AddPendingEvent(event);
+ }
+ }
+}
- // Stay in touch with the state of things...
+void wxSocketBase::Notify(bool notify)
+{
+ m_notify = notify;
+ if (m_impl)
+ m_impl->Notify(notify);
+}
- unsigned long flag = 1;
- setsockopt(m_fd, SOL_SOCKET, SO_KEEPALIVE, (char*)&flag, sizeof(int));
+void wxSocketBase::SetNotify(wxSocketEventFlags flags)
+{
+ m_eventmask = flags;
+}
- // Disable the nagle algorithm, which delays sends till the
- // buffer is full (or a certain time period has passed?)...
+void wxSocketBase::SetEventHandler(wxEvtHandler& handler, int id)
+{
+ m_handler = &handler;
+ m_id = id;
+}
-#if defined(__WINDOWS__) || (defined(IPPROTO_TCP) && defined(TCP_NODELAY))
- flag = 1;
- setsockopt(m_fd, IPPROTO_TCP, TCP_NODELAY, (char*)&flag, sizeof(int));
-#endif
+// --------------------------------------------------------------------------
+// Pushback buffer
+// --------------------------------------------------------------------------
- struct sockaddr *remote;
- size_t len;
+void wxSocketBase::Pushback(const void *buffer, wxUint32 size)
+{
+ if (!size) return;
- addr_man.Build(remote, len);
+ if (m_unread == NULL)
+ m_unread = malloc(size);
+ else
+ {
+ void *tmp;
- if (connect(m_fd, remote, len) != 0)
- return FALSE;
+ tmp = malloc(m_unrd_size + size);
+ memcpy((char *)tmp + size, m_unread, m_unrd_size);
+ free(m_unread);
- // Initializes the background threads ...
- // --------------------------------------
- m_internal->InitializeSocket();
+ m_unread = tmp;
+ }
- // Enables bg events.
- // ------------------
- Notify(TRUE);
+ m_unrd_size += size;
- m_connected = TRUE;
- return TRUE;
+ memcpy(m_unread, buffer, size);
}
-bool wxSocketClient::WaitOnConnect(long seconds, long microseconds)
+wxUint32 wxSocketBase::GetPushback(void *buffer, wxUint32 size, bool peek)
{
- int ret = _Wait(seconds, microseconds, REQ_CONNECT | REQ_LOST);
+ wxCHECK_MSG( buffer, 0, "NULL buffer" );
- if (ret)
- m_connected = TRUE;
+ if (!m_unrd_size)
+ return 0;
- return m_connected;
-}
+ if (size > (m_unrd_size-m_unrd_cur))
+ size = m_unrd_size-m_unrd_cur;
-void wxSocketClient::OnRequest(wxRequestEvent evt)
-{
- if (evt == EVT_CONNECT)
- {
- if (m_connected)
+ memcpy(buffer, (char *)m_unread + m_unrd_cur, size);
+
+ if (!peek)
{
- SetNotify(m_neededreq & ~REQ_CONNECT);
- return;
+ m_unrd_cur += size;
+ if (m_unrd_size == m_unrd_cur)
+ {
+ free(m_unread);
+ m_unread = NULL;
+ m_unrd_size = 0;
+ m_unrd_cur = 0;
+ }
}
- m_connected = TRUE;
- OldOnNotify(EVT_CONNECT);
- return;
- }
- wxSocketBase::OnRequest(evt);
+
+ return size;
}
-/////////////////////////////////////////////////////////////////
-// wxSocketHandler ///////////////////////////////////////////////
-/////////////////////////////////////////////////////////////////
-wxSocketHandler *wxSocketHandler::master = NULL;
-#if defined(__WINDOWS__)
-static int win_initialized = 0;
-#endif
+// ==========================================================================
+// wxSocketServer
+// ==========================================================================
+
+// --------------------------------------------------------------------------
+// Ctor
+// --------------------------------------------------------------------------
-// --------------------------------------------------------------
-// --------- wxSocketHandler CONSTRUCTOR ------------------------
-// --------------------------------------------------------------
-wxSocketHandler::wxSocketHandler()
+wxSocketServer::wxSocketServer(const wxSockAddress& addr_man,
+ wxSocketFlags flags)
+ : wxSocketBase(flags, wxSOCKET_SERVER)
{
-#if defined(__WINDOWS__)
- if (!win_initialized)
- {
- WSADATA wsaData;
+ wxLogTrace( wxTRACE_Socket, _T("Opening wxSocketServer") );
- WSAStartup((1 << 8) | 1, &wsaData);
- win_initialized = 1;
- }
-#endif
+ m_impl = wxSocketImpl::Create(*this);
+
+ if (!m_impl)
+ {
+ wxLogTrace( wxTRACE_Socket, _T("*** Failed to create m_impl") );
+ return;
+ }
- socks = new wxList;
+ // Setup the socket as server
+ m_impl->Notify(m_notify);
+ m_impl->SetLocal(addr_man.GetAddress());
-#ifndef __WINDOWS__
- signal(SIGPIPE, SIG_IGN);
-#endif
+ if (GetFlags() & wxSOCKET_REUSEADDR) {
+ m_impl->SetReusable();
+ }
+ if (GetFlags() & wxSOCKET_BROADCAST) {
+ m_impl->SetBroadcast();
+ }
+ if (GetFlags() & wxSOCKET_NOBIND) {
+ m_impl->DontDoBind();
+ }
+
+ if (m_impl->CreateServer() != wxSOCKET_NOERROR)
+ {
+ delete m_impl;
+ m_impl = NULL;
+
+ wxLogTrace( wxTRACE_Socket, _T("*** CreateServer() failed") );
+ return;
+ }
+
+ wxLogTrace( wxTRACE_Socket, _T("wxSocketServer on fd %d"), m_impl->m_fd );
}
-// --------------------------------------------------------------
-// --------- wxSocketHandler DESTRUCTOR -------------------------
-// --------------------------------------------------------------
-wxSocketHandler::~wxSocketHandler()
+// --------------------------------------------------------------------------
+// Accept
+// --------------------------------------------------------------------------
+
+bool wxSocketServer::AcceptWith(wxSocketBase& sock, bool wait)
{
- wxNode *next_node, *node = socks->First();
+ if (!m_impl)
+ return false;
- while (node)
- {
- wxSocketBase* sock = (wxSocketBase*)node->Data();
+ // If wait == false, then the call should be nonblocking.
+ // When we are finished, we put the socket to blocking mode
+ // again.
+ wxSocketUnblocker unblock(m_impl, !wait);
+ sock.m_impl = m_impl->WaitConnection(sock);
- delete sock;
- next_node = node->Next();
- delete node;
- node = next_node;
- }
+ if ( !sock.m_impl )
+ return false;
- delete socks;
+ sock.m_type = wxSOCKET_BASE;
+ sock.m_connected = true;
-#ifdef __WINDOWS__
- WSACleanup();
- win_initialized = 0;
-#endif
+ return true;
}
-// --------------------------------------------------------------
-// --------- wxSocketHandler registering functions --------------
-// --------------------------------------------------------------
+wxSocketBase *wxSocketServer::Accept(bool wait)
+{
+ wxSocketBase* sock = new wxSocketBase();
+
+ sock->SetFlags(m_flags);
-void wxSocketHandler::Register(wxSocketBase* sock)
+ if (!AcceptWith(*sock, wait))
+ {
+ sock->Destroy();
+ sock = NULL;
+ }
+
+ return sock;
+}
+
+bool wxSocketServer::WaitForAccept(long seconds, long milliseconds)
{
- wxNode *node;
+ return DoWait(seconds, milliseconds, wxSOCKET_CONNECTION_FLAG);
+}
- for (node = socks->First(); node != NULL; node = node->Next())
- {
- wxSocketBase* s = (wxSocketBase*)node->Data();
+bool wxSocketBase::GetOption(int level, int optname, void *optval, int *optlen)
+{
+ wxASSERT_MSG( m_impl, _T("Socket not initialised") );
- if (s == sock)
- return;
- }
+ SOCKOPTLEN_T lenreal;
+ if ( getsockopt(m_impl->m_fd, level, optname,
+ static_cast<char *>(optval), &lenreal) != 0 )
+ return false;
- if (sock)
- {
- socks->Append(sock);
- sock->SetHandler(this);
- }
+ *optlen = lenreal;
+
+ return true;
}
-void wxSocketHandler::UnRegister(wxSocketBase* sock)
+bool
+wxSocketBase::SetOption(int level, int optname, const void *optval, int optlen)
{
- wxNode *node;
+ wxASSERT_MSG( m_impl, _T("Socket not initialised") );
- for (node = socks->First(); node; node = node->Next())
- {
- wxSocketBase* s = (wxSocketBase*)node->Data();
+ return setsockopt(m_impl->m_fd, level, optname,
+ static_cast<const char *>(optval), optlen) == 0;
+}
+
+bool wxSocketBase::SetLocal(const wxIPV4address& local)
+{
+ GAddress* la = local.GetAddress();
- if (s == sock)
+ // If the address is valid, save it for use when we call Connect
+ if (la && la->m_addr)
{
- delete node;
- sock->SetHandler(NULL);
- return;
+ m_localAddress = local;
+
+ return true;
}
- }
+
+ return false;
+}
+
+// ==========================================================================
+// wxSocketClient
+// ==========================================================================
+
+// --------------------------------------------------------------------------
+// Ctor and dtor
+// --------------------------------------------------------------------------
+
+wxSocketClient::wxSocketClient(wxSocketFlags flags)
+ : wxSocketBase(flags, wxSOCKET_CLIENT)
+{
+ m_initialRecvBufferSize =
+ m_initialSendBufferSize = -1;
}
-unsigned long wxSocketHandler::Count() const
+wxSocketClient::~wxSocketClient()
{
- return socks->Number();
}
-// --------------------------------------------------------------
-// --------- wxSocketHandler "big" wait functions ---------------
-// --------------------------------------------------------------
+// --------------------------------------------------------------------------
+// Connect
+// --------------------------------------------------------------------------
-int wxSocketHandler::Wait(long seconds, long microseconds)
+bool wxSocketClient::DoConnect(const wxSockAddress& addr_man,
+ const wxSockAddress* local,
+ bool wait)
{
- // TODO Needs the completely asynchronous notifier.
+ if (m_impl)
+ {
+ // Shutdown and destroy the socket
+ Close();
+ delete m_impl;
+ }
- /*
- int i;
- int on_wait;
- wxNode *node;
- for (node = socks->First(), i=0; node; node = node->Next(), i++)
- {
- wxSocketBase *sock = (wxSocketBase *)node->Data();
+ m_impl = wxSocketImpl::Create(*this);
+ m_connected = false;
+ m_establishing = false;
- sock->SaveState();
+ if (!m_impl)
+ return false;
- sock->SetupCallbacks();
+ // If wait == false, then the call should be nonblocking. When we are
+ // finished, we put the socket to blocking mode again.
+ wxSocketUnblocker unblock(m_impl, !wait);
- sock->Callback(handler_cbk);
- sock->CallbackData((char *)&on_wait);
- }
- on_wait = 0;
- if (seconds != -1)
- s_wake.Start((seconds*1000) + (microseconds/1000), TRUE);
+ // Reuse makes sense for clients too, if we are trying to rebind to the same port
+ if (GetFlags() & wxSOCKET_REUSEADDR)
+ {
+ m_impl->SetReusable();
+ }
+ if (GetFlags() & wxSOCKET_BROADCAST)
+ {
+ m_impl->SetBroadcast();
+ }
+ if (GetFlags() & wxSOCKET_NOBIND)
+ {
+ 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())
+ {
+ local = &m_localAddress;
+ }
- while (!on_wait)
- PROCESS_EVENTS();
+ // Bind to the local IP address and port, when provided
+ if (local)
+ {
+ GAddress* la = local->GetAddress();
- for (node = socks->First(), i=0; node; node = node->Next(), i++)
- {
- wxSocketBase *sock = (wxSocketBase *)node->Data();
+ if (la && la->m_addr)
+ m_impl->SetLocal(la);
+ }
- sock->RestoreState();
- }
+ m_impl->SetInitialSocketBuffers(m_initialRecvBufferSize, m_initialSendBufferSize);
+
+ m_impl->SetPeer(addr_man.GetAddress());
+ const wxSocketError err = m_impl->CreateClient();
- if (on_wait == -2)
- return 0;
+ //this will register for callbacks - must be called after m_impl->m_fd was initialized
+ m_impl->Notify(m_notify);
+
+ if (err != wxSOCKET_NOERROR)
+ {
+ if (err == wxSOCKET_WOULDBLOCK)
+ m_establishing = true;
- return on_wait;
- */
- return 0;
+ return false;
+ }
+
+ m_connected = true;
+ return true;
}
-void wxSocketHandler::YieldSock()
+bool wxSocketClient::Connect(const wxSockAddress& addr_man, bool wait)
{
- wxNode *node;
-
- // Nothing to do anymore here except waiting for the queue emptying.
- for (node = socks->First(); node; node=node->Next()) {
- wxSocketBase *sock = (wxSocketBase *)node->Data();
+ return DoConnect(addr_man, NULL, wait);
+}
- sock->m_internal->WaitForEnd(NULL);
- }
+bool wxSocketClient::Connect(const wxSockAddress& addr_man,
+ const wxSockAddress& local,
+ bool wait)
+{
+ return DoConnect(addr_man, &local, wait);
}
-// --------------------------------------------------------------
-// --------- wxSocketHandler: create and register the socket ----
-// --------------------------------------------------------------
-wxSocketServer *wxSocketHandler::CreateServer(wxSockAddress& addr,
- wxSocketBase::wxSockFlags flags)
+bool wxSocketClient::WaitOnConnect(long seconds, long milliseconds)
{
- wxSocketServer *serv = new wxSocketServer(addr, flags);
+ if ( m_connected )
+ {
+ // this happens if the initial attempt to connect succeeded without
+ // blocking
+ return true;
+ }
+
+ wxCHECK_MSG( m_establishing && m_impl, false,
+ "No connection establishment attempt in progress" );
- Register(serv);
- return serv;
+ // 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,
+ wxSOCKET_CONNECTION_FLAG | wxSOCKET_LOST_FLAG);
}
-wxSocketClient *wxSocketHandler::CreateClient(wxSocketBase::wxSockFlags flags)
+// ==========================================================================
+// wxDatagramSocket
+// ==========================================================================
+
+wxDatagramSocket::wxDatagramSocket( const wxSockAddress& addr,
+ wxSocketFlags flags )
+ : wxSocketBase( flags, wxSOCKET_DATAGRAM )
{
- wxSocketClient *client = new wxSocketClient(flags);
+ // Create the socket
+ m_impl = wxSocketImpl::Create(*this);
+
+ if (!m_impl)
+ return;
- Register(client);
- return client;
+ m_impl->Notify(m_notify);
+ // Setup the socket as non connection oriented
+ m_impl->SetLocal(addr.GetAddress());
+ if (flags & wxSOCKET_REUSEADDR)
+ {
+ m_impl->SetReusable();
+ }
+ if (GetFlags() & wxSOCKET_BROADCAST)
+ {
+ m_impl->SetBroadcast();
+ }
+ if (GetFlags() & wxSOCKET_NOBIND)
+ {
+ m_impl->DontDoBind();
+ }
+
+ if ( m_impl->CreateUDP() != wxSOCKET_NOERROR )
+ {
+ delete m_impl;
+ m_impl = NULL;
+ return;
+ }
+
+ // Initialize all stuff
+ m_connected = false;
+ m_establishing = false;
}
-bool wxSocketModule::OnInit()
+wxDatagramSocket& wxDatagramSocket::RecvFrom( wxSockAddress& addr,
+ void* buf,
+ wxUint32 nBytes )
{
- wxSocketHandler::master = new wxSocketHandler();
- return TRUE;
+ Read(buf, nBytes);
+ GetPeer(addr);
+ return (*this);
}
-void wxSocketModule::OnExit()
+wxDatagramSocket& wxDatagramSocket::SendTo( const wxSockAddress& addr,
+ const void* buf,
+ wxUint32 nBytes )
{
- delete wxSocketHandler::master;
- wxSocketHandler::master = NULL;
+ wxASSERT_MSG( m_impl, _T("Socket not initialised") );
+
+ m_impl->SetPeer(addr.GetAddress());
+ Write(buf, nBytes);
+ return (*this);
}
-#endif
- // __WXSTUBS__
+// ==========================================================================
+// wxSocketModule
+// ==========================================================================
-#endif
- // wxUSE_SOCKETS
+class wxSocketModule : public wxModule
+{
+public:
+ virtual bool OnInit()
+ {
+ // wxSocketBase will call Initialize() itself only if sockets are
+ // really used, don't do it from here
+ return true;
+ }
+
+ virtual void OnExit()
+ {
+ if ( wxSocketBase::IsInitialized() )
+ wxSocketBase::Shutdown();
+ }
+
+private:
+ DECLARE_DYNAMIC_CLASS(wxSocketModule)
+};
+
+IMPLEMENT_DYNAMIC_CLASS(wxSocketModule, wxModule)
+
+#endif // wxUSE_SOCKETS
projects / wxWidgets.git / blobdiff