X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/e6f466082e3652bd4c84b11aa933a52b4e54dbf0..4b5e178a4c22caac92952131632641c63821fc0c:/src/common/socket.cpp diff --git a/src/common/socket.cpp b/src/common/socket.cpp index d7acc0b671..d17ce8f2ed 100644 --- a/src/common/socket.cpp +++ b/src/common/socket.cpp @@ -4,7 +4,8 @@ // 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 ///////////////////////////////////////////////////////////////////////////// @@ -42,6 +43,9 @@ #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" WX_CHECK_BUILD_OPTIONS("wxNet") @@ -87,35 +91,35 @@ public: class wxSocketUnblocker { public: - wxSocketUnblocker(GSocket *socket, bool unblock = true) - : m_socket(socket), + wxSocketUnblocker(wxSocketImpl *socket, bool unblock = true) + : m_impl(socket), m_unblock(unblock) { if ( m_unblock ) - m_socket->SetNonBlocking(true); + m_impl->SetNonBlocking(true); } ~wxSocketUnblocker() { if ( m_unblock ) - m_socket->SetNonBlocking(false); + m_impl->SetNonBlocking(false); } private: - GSocket * const m_socket; + wxSocketImpl * const m_impl; 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" ); @@ -123,7 +127,7 @@ void GSocketManager::Set(GSocketManager *manager) } /* static */ -void GSocketManager::Init() +void wxSocketManager::Init() { wxASSERT_MSG( !ms_manager, "shouldn't be initialized twice" ); @@ -152,6 +156,353 @@ void GSocketManager::Init() ms_manager = app->GetTraits()->GetSocketManager(); } +// ========================================================================== +// wxSocketImpl +// ========================================================================== + +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; +} + +wxSocketImpl::~wxSocketImpl() +{ + if (m_fd != INVALID_SOCKET) + Shutdown(); + + if (m_local) + GAddress_destroy(m_local); + + 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); + + // FIXME: shouldn't we check for m_non_blocking here? as it is now, all our + // sockets are non-blocking + UnblockAndRegisterWithEventLoop(); +} + +wxSocketError wxSocketImpl::UpdateLocalAddress() +{ + WX_SOCKLEN_T lenAddr; + if ( getsockname(m_fd, m_local->m_addr, &lenAddr) != 0 ) + { + Close(); + m_error = wxSOCKET_IOERR; + return m_error; + } + + m_local->m_len = lenAddr; + + return wxSOCKET_NOERROR; +} + +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() +{ + 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; + } + } + + // 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)); +} + + +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; +} + + +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 wxSocketImpl::Shutdown() +{ + if ( m_fd != INVALID_SOCKET ) + { + shutdown(m_fd, 1 /* SD_SEND */); + Close(); + } + + m_detected = wxSOCKET_LOST_FLAG; +} + +/* + * 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; +} + +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); + + 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; +} + // ========================================================================== // wxSocketBase // ========================================================================== @@ -173,7 +524,8 @@ bool wxSocketBase::Initialize() { if ( !m_countInit++ ) { - if ( !GSocket_Init() ) + wxSocketManager * const manager = wxSocketManager::Get(); + if ( !manager || !manager->OnInit() ) { m_countInit--; @@ -190,7 +542,10 @@ void wxSocketBase::Shutdown() 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(); } } @@ -200,7 +555,7 @@ void wxSocketBase::Shutdown() void wxSocketBase::Init() { - m_socket = NULL; + m_impl = NULL; m_type = wxSOCKET_UNINIT; // state @@ -261,9 +616,8 @@ wxSocketBase::~wxSocketBase() 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) @@ -299,6 +653,15 @@ bool wxSocketBase::Destroy() return true; } +// ---------------------------------------------------------------------------- +// simply accessors +// ---------------------------------------------------------------------------- + +wxSocketError wxSocketBase::LastError() const +{ + return m_impl->GetError(); +} + // -------------------------------------------------------------------------- // Basic IO calls // -------------------------------------------------------------------------- @@ -313,19 +676,8 @@ 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; @@ -364,7 +716,7 @@ wxUint32 wxSocketBase::DoRead(void* buffer_, wxUint32 nbytes) 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" ); @@ -374,8 +726,8 @@ wxUint32 wxSocketBase::DoRead(void* buffer_, wxUint32 nbytes) // 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); + wxSocketUnblocker unblock(m_impl); + int ret = m_impl->Read(buffer, nbytes); if ( ret < 0 ) return 0; @@ -391,7 +743,7 @@ wxUint32 wxSocketBase::DoRead(void* buffer_, wxUint32 nbytes) if ( !(m_flags & wxSOCKET_BLOCK) && !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 @@ -574,7 +926,7 @@ wxUint32 wxSocketBase::DoWrite(const void *buffer_, wxUint32 nbytes) const char *buffer = static_cast(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" ); @@ -582,8 +934,8 @@ wxUint32 wxSocketBase::DoWrite(const void *buffer_, wxUint32 nbytes) wxUint32 total = 0; if ( m_flags & wxSOCKET_NOWAIT ) { - wxSocketUnblocker unblock(m_socket); - const int ret = m_socket->Write(buffer, nbytes); + wxSocketUnblocker unblock(m_impl); + const int ret = m_impl->Write(buffer, nbytes); if ( ret > 0 ) total += ret; } @@ -594,7 +946,7 @@ wxUint32 wxSocketBase::DoWrite(const void *buffer_, wxUint32 nbytes) if ( !(m_flags & wxSOCKET_BLOCK) && !WaitForWrite() ) break; - const int ret = m_socket->Write(buffer, nbytes); + const int ret = m_impl->Write(buffer, nbytes); if ( ret == 0 ) { m_closed = true; @@ -720,25 +1072,25 @@ wxSocketBase& wxSocketBase::Discard() // 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. */ -GSocketEventFlags GSocketBase::Select(GSocketEventFlags flags) +wxSocketEventFlags wxSocketImpl::Select(wxSocketEventFlags flags) { assert(this); - GSocketEventFlags result = 0; + wxSocketEventFlags result = 0; fd_set readfds; fd_set writefds; fd_set exceptfds; struct timeval tv; if (m_fd == -1) - return (GSOCK_LOST_FLAG & flags); + return (wxSOCKET_LOST_FLAG & flags); /* Do not use a static struct, Linux can garble it */ tv.tv_sec = 0; @@ -748,20 +1100,20 @@ GSocketEventFlags GSocketBase::Select(GSocketEventFlags flags) 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 */ @@ -775,23 +1127,23 @@ GSocketEventFlags GSocketBase::Select(GSocketEventFlags flags) 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; } } @@ -807,26 +1159,26 @@ GSocketEventFlags GSocketBase::Select(GSocketEventFlags flags) 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 +// 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 @@ -835,7 +1187,7 @@ GSocketEventFlags GSocketBase::Select(GSocketEventFlags flags) 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; @@ -868,13 +1220,13 @@ wxSocketBase::DoWait(long seconds, long milliseconds, wxSocketEventFlags flags) for ( ;; ) { // 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 + // make sense to continue further, even if wxSOCKET_LOST_FLAG is not // specified in flags to wait for. - const GSocketEventFlags - result = m_socket->Select(flags | GSOCK_LOST_FLAG); + const wxSocketEventFlags + result = m_impl->Select(flags | wxSOCKET_LOST_FLAG); // Incoming connection (server) or connection established (client)? - if ( result & GSOCK_CONNECTION_FLAG ) + if ( result & wxSOCKET_CONNECTION_FLAG ) { m_connected = true; m_establishing = false; @@ -883,18 +1235,18 @@ wxSocketBase::DoWait(long seconds, long milliseconds, wxSocketEventFlags flags) } // Data available or output buffer ready? - if ( (result & GSOCK_INPUT_FLAG) || (result & GSOCK_OUTPUT_FLAG) ) + if ( (result & wxSOCKET_INPUT_FLAG) || (result & wxSOCKET_OUTPUT_FLAG) ) { gotEvent = true; break; } // Connection lost - if ( result & GSOCK_LOST_FLAG ) + if ( result & wxSOCKET_LOST_FLAG ) { m_connected = false; m_establishing = false; - if ( flags & GSOCK_LOST_FLAG ) + if ( flags & wxSOCKET_LOST_FLAG ) gotEvent = true; break; } @@ -931,10 +1283,10 @@ wxSocketBase::DoWait(long seconds, long milliseconds, wxSocketEventFlags flags) 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 ); } @@ -944,22 +1296,22 @@ bool wxSocketBase::WaitForRead(long seconds, long milliseconds) 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); } // -------------------------------------------------------------------------- @@ -974,10 +1326,10 @@ bool wxSocketBase::GetPeer(wxSockAddress& addr_man) const { 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 @@ -994,10 +1346,10 @@ bool wxSocketBase::GetLocal(wxSockAddress& addr_man) const { 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); @@ -1050,8 +1402,8 @@ void wxSocketBase::SetTimeout(long seconds) { 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) @@ -1071,34 +1423,6 @@ 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) @@ -1113,12 +1437,12 @@ void wxSocketBase::OnRequest(wxSocketNotify notification) // which are no longer valid. case wxSOCKET_INPUT: - if (m_reading || !m_socket->Select(GSOCK_INPUT_FLAG)) + if (m_reading || !m_impl->Select(wxSOCKET_INPUT_FLAG)) return; break; case wxSOCKET_OUTPUT: - if (m_writing || !m_socket->Select(GSOCK_OUTPUT_FLAG)) + if (m_writing || !m_impl->Select(wxSOCKET_OUTPUT_FLAG)) return; break; @@ -1126,6 +1450,10 @@ void wxSocketBase::OnRequest(wxSocketNotify notification) m_connected = false; m_establishing = false; break; + + case wxSOCKET_MAX_EVENT: + wxFAIL_MSG( "unexpected notification" ); + return; } // Schedule the event @@ -1134,10 +1462,10 @@ void wxSocketBase::OnRequest(wxSocketNotify notification) 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; + 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; @@ -1160,8 +1488,8 @@ void wxSocketBase::OnRequest(wxSocketNotify notification) void wxSocketBase::Notify(bool notify) { m_notify = notify; - if (m_socket) - m_socket->Notify(notify); + if (m_impl) + m_impl->Notify(notify); } void wxSocketBase::SetNotify(wxSocketEventFlags flags) @@ -1243,43 +1571,38 @@ wxSocketServer::wxSocketServer(const wxSockAddress& addr_man, { wxLogTrace( wxTRACE_Socket, _T("Opening wxSocketServer") ); - m_socket = GSocket_new(); + 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->Notify(m_notify); + 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 ); } // -------------------------------------------------------------------------- @@ -1288,27 +1611,21 @@ wxSocketServer::wxSocketServer(const wxSockAddress& addr_man, bool wxSocketServer::AcceptWith(wxSocketBase& sock, bool wait) { - if (!m_socket) + if (!m_impl) 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(); + wxSocketUnblocker unblock(m_impl, !wait); + sock.m_impl = m_impl->WaitConnection(sock); - if (!child_socket) + if ( !sock.m_impl ) 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; } @@ -1329,32 +1646,30 @@ wxSocketBase *wxSocketServer::Accept(bool wait) 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; + if ( getsockopt(m_impl->m_fd, level, optname, + static_cast(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(optval), optlen) == 0; } bool wxSocketBase::SetLocal(const wxIPV4address& local) @@ -1399,46 +1714,36 @@ bool wxSocketClient::DoConnect(const wxSockAddress& addr_man, const wxSockAddress* local, bool wait) { - if (m_socket) + if (m_impl) { // Shutdown and destroy the socket Close(); - delete m_socket; + delete m_impl; } - m_socket = GSocket_new(); + m_impl = wxSocketImpl::Create(*this); m_connected = false; m_establishing = false; - if (!m_socket) + 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); + wxSocketUnblocker unblock(m_impl, !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 @@ -1453,22 +1758,20 @@ bool wxSocketClient::DoConnect(const wxSockAddress& addr_man, GAddress* la = local->GetAddress(); if (la && la->m_addr) - m_socket->SetLocal(la); + m_impl->SetLocal(la); } -#if defined(__WXMSW__) || defined(__WXGTK__) - m_socket->SetInitialSocketBuffers(m_initialRecvBufferSize, m_initialSendBufferSize); -#endif + m_impl->SetInitialSocketBuffers(m_initialRecvBufferSize, m_initialSendBufferSize); - m_socket->SetPeer(addr_man.GetAddress()); - const GSocketError err = m_socket->Connect(GSOCK_STREAMED); + m_impl->SetPeer(addr_man.GetAddress()); + const wxSocketError err = m_impl->CreateClient(); - //this will register for callbacks - must be called after m_socket->m_fd was initialized - m_socket->Notify(m_notify); + //this will register for callbacks - must be called after m_impl->m_fd was initialized + m_impl->Notify(m_notify); - if (err != GSOCK_NOERROR) + if (err != wxSOCKET_NOERROR) { - if (err == GSOCK_WOULDBLOCK) + if (err == wxSOCKET_WOULDBLOCK) m_establishing = true; return false; @@ -1499,64 +1802,57 @@ 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_new(); + 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); + + m_impl->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, @@ -1572,9 +1868,9 @@ wxDatagramSocket& wxDatagramSocket::SendTo( const 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); } @@ -1588,7 +1884,8 @@ class wxSocketModule : public wxModule 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; }