X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/9bf10d6bd3df0d5ad9d9849f162b17a62c3ac51f..80cc5fc7ad102221a1ce9e160eac3c29a0586664:/include/wx/unix/gsockunx.h diff --git a/include/wx/unix/gsockunx.h b/include/wx/unix/gsockunx.h index 1c18fc1726..9fa9e77fbf 100644 --- a/include/wx/unix/gsockunx.h +++ b/include/wx/unix/gsockunx.h @@ -1,104 +1,212 @@ /* ------------------------------------------------------------------------- - * Project: GSocket (Generic Socket) for WX - * Name: gsockunx.h - * Purpose: GSocket Unix header - * CVSID: $Id$ + * Project: GSocket (Generic Socket) for WX + * Name: gsockunx.h + * Copyright: (c) Guilhem Lavaux + * Licence: wxWindows Licence + * Purpose: GSocket Unix header + * CVSID: $Id$ * ------------------------------------------------------------------------- */ -#ifndef __GSOCK_UNX_H -#define __GSOCK_UNX_H +#ifndef _WX_UNIX_GSOCKUNX_H_ +#define _WX_UNIX_GSOCKUNX_H_ -#ifndef __GSOCKET_STANDALONE__ -#include "wx/setup.h" -#endif +#include -#if wxUSE_SOCKETS || defined(__GSOCKET_STANDALONE__) +class wxGSocketIOHandler; -#ifndef __GSOCKET_STANDALONE__ -#include "wx/gsocket.h" -#else -#include "gsocket.h" -#endif - - -#ifdef __cplusplus -extern "C" { -#endif /* __cplusplus */ - - -/* Definition of GSocket */ -struct _GSocket +class GSocket : public GSocketBase { - int m_fd; - GAddress *m_local; - GAddress *m_peer; - GSocketError m_error; - - bool m_non_blocking; - bool m_server; - bool m_stream; - bool m_oriented; - bool m_establishing; - unsigned long m_timeout; - - /* Callbacks */ - GSocketEventFlags m_detected; - GSocketCallback m_cbacks[GSOCK_MAX_EVENT]; - char *m_data[GSOCK_MAX_EVENT]; - - char *m_gui_dependent; +public: + GSocket(wxSocketBase& wxsocket); + virtual ~GSocket(); + + virtual void Shutdown(); + virtual GSocket *WaitConnection(wxSocketBase& wxsocket); + + GSocketError SetServer(); + bool SetReusable(); + bool SetBroadcast(); + bool DontDoBind(); + GSocketError Connect(GSocketStream stream); + GSocketError SetNonOriented(); + int Read(char *buffer, int size); + int Write(const char *buffer, int size); + void SetNonBlocking(bool non_block); + GSocketError WXDLLIMPEXP_NET GetError(); + GSocketError GetSockOpt(int level, int optname, void *optval, int *optlen); + GSocketError SetSockOpt(int level, int optname, + const void *optval, int optlen); + //attach or detach from main loop + void Notify(bool flag); + void Detected_Read(); + void Detected_Write(); + +private: + // enable or disable notifications for socket input/output events but only + // if m_use_events is true; do nothing otherwise + void EnableEvents() + { + if ( m_use_events ) + DoEnableEvents(true); + } + + void DisableEvents() + { + if ( m_use_events ) + DoEnableEvents(false); + } + + // really enable or disable socket input/output events, regardless of + // m_use_events value + void DoEnableEvents(bool enable); + + + // enable or disable events for the given event if m_use_events; do nothing + // otherwise + // + // notice that these functions also update m_detected: EnableEvent() clears + // the corresponding bit in it and DisableEvent() sets it + void EnableEvent(GSocketEvent event); + void DisableEvent(GSocketEvent event); + + + GSocketError Input_Timeout(); + GSocketError Output_Timeout(); + int Recv_Stream(char *buffer, int size); + int Recv_Dgram(char *buffer, int size); + int Send_Stream(const char *buffer, int size); + int Send_Dgram(const char *buffer, int size); +public: + /* DFE: We can't protect these data member until the GUI code is updated */ + /* protected: */ + wxGSocketIOHandler *m_handler; + + // true if socket should fire events + bool m_use_events; + + // pointer for storing extra (usually GUI-specific) data + void *m_gui_dependent; + +private: + // notify the associated wxSocket about a change in socket state and shut + // down the socket if the event is GSOCK_LOST + void OnStateChange(GSocketEvent event); }; -/* Definition of GAddress */ -struct _GAddress +// A version of GSocketManager which uses FDs for socket IO +// +// This class uses GSocket::m_gui_dependent field to store the 2 (for input and +// output) FDs associated with the socket. +class GSocketFDBasedManager : public GSocketManager { - struct sockaddr *m_addr; - size_t m_len; - - GAddressType m_family; - int m_realfamily; - - GSocketError m_error; +public: + // no special initialization/cleanup needed when using FDs + virtual bool OnInit() { return true; } + virtual void OnExit() { } + + // allocate/free the storage we need + virtual bool Init_Socket(GSocket *socket) + { + socket->m_gui_dependent = malloc(sizeof(int)*2); + int * const fds = static_cast(socket->m_gui_dependent); + + fds[0] = -1; + fds[1] = -1; + + return true; + } + + virtual void Close_Socket(GSocket *socket) + { + Uninstall_Callback(socket, GSOCK_INPUT); + Uninstall_Callback(socket, GSOCK_OUTPUT); + + close(socket->m_fd); + } + + virtual void Destroy_Socket(GSocket *socket) + { + free(socket->m_gui_dependent); + } + +protected: + // identifies either input or output direction + // + // NB: the values of this enum shouldn't change + enum SocketDir + { + FD_INPUT, + FD_OUTPUT + }; + + // get the FD index corresponding to the given GSocketEvent + SocketDir GetDirForEvent(GSocket *socket, GSocketEvent event) + { + switch ( event ) + { + default: + wxFAIL_MSG( "unexpected socket event" ); + // fall through + + case GSOCK_LOST: + // fall through + + case GSOCK_INPUT: + return FD_INPUT; + + case GSOCK_OUTPUT: + return FD_OUTPUT; + + case GSOCK_CONNECTION: + // FIXME: explain this? + return socket->m_server ? FD_INPUT : FD_OUTPUT; + } + } + + // access the FDs we store + int& FD(GSocket *socket, SocketDir d) + { + return static_cast(socket->m_gui_dependent)[d]; + } }; -/* Input / Output */ - -GSocketError _GSocket_Input_Timeout(GSocket *socket); -GSocketError _GSocket_Output_Timeout(GSocket *socket); -int _GSocket_Recv_Stream(GSocket *socket, char *buffer, int size); -int _GSocket_Recv_Dgram(GSocket *socket, char *buffer, int size); -int _GSocket_Send_Stream(GSocket *socket, const char *buffer, int size); -int _GSocket_Send_Dgram(GSocket *socket, const char *buffer, int size); - -/* Callbacks */ - -void _GSocket_Enable(GSocket *socket, GSocketEvent event); -void _GSocket_Disable(GSocket *socket, GSocketEvent event); -void _GSocket_Detected_Read(GSocket *socket); -void _GSocket_Detected_Write(GSocket *socket); - -void _GSocket_GUI_Init(GSocket *socket); -void _GSocket_GUI_Destroy(GSocket *socket); -void _GSocket_Enable_Events(GSocket *socket); -void _GSocket_Disable_Events(GSocket *socket); -void _GSocket_Install_Callback(GSocket *socket, GSocketEvent event); -void _GSocket_Uninstall_Callback(GSocket *socket, GSocketEvent event); - -/* GAddress */ - -GSocketError _GAddress_translate_from(GAddress *address, - struct sockaddr *addr, int len); -GSocketError _GAddress_translate_to (GAddress *address, - struct sockaddr **addr, int *len); -GSocketError _GAddress_Init_INET(GAddress *address); -GSocketError _GAddress_Init_UNIX(GAddress *address); - - -#ifdef __cplusplus -} -#endif /* __cplusplus */ - -#endif /* wxUSE_SOCKETS || defined(__GSOCKET_STANDALONE__) */ +// Common base class for all ports using X11-like (and hence implemented in +// X11, Motif and GTK) AddInput() and RemoveInput() functions +class GSocketInputBasedManager : public GSocketFDBasedManager +{ +public: + virtual void Install_Callback(GSocket *socket, GSocketEvent event) + { + wxCHECK_RET( socket->m_fd != -1, + "shouldn't be called on invalid socket" ); + + const SocketDir d = GetDirForEvent(socket, event); + + int& fd = FD(socket, d); + if ( fd != -1 ) + RemoveInput(fd); + + fd = AddInput(socket, d); + } + + virtual void Uninstall_Callback(GSocket *socket, GSocketEvent event) + { + const SocketDir d = GetDirForEvent(socket, event); + + int& fd = FD(socket, d); + if ( fd != -1 ) + { + RemoveInput(fd); + fd = -1; + } + } + +private: + // these functions map directly to XtAdd/RemoveInput() or + // gdk_input_add/remove() + virtual int AddInput(GSocket *socket, SocketDir d) = 0; + virtual void RemoveInput(int fd) = 0; +}; -#endif /* __GSOCK_UNX_H */ +#endif /* _WX_UNIX_GSOCKUNX_H_ */