include/wx/gsocket.h

   1 /* -------------------------------------------------------------------------
   2  * Project:     GSocket (Generic Socket)
   3  * Name:        gsocket.h
   4  * Author:      Guilhem Lavaux
   5  *              Guillermo Rodriguez Garcia <guille@iies.es> (maintainer)
   6  * Copyright:   (c) Guilhem Lavaux
   7  * Licence:     wxWindows Licence
   8  * Purpose:     GSocket include file (system independent)
   9  * CVSID:       $Id$
  10  * -------------------------------------------------------------------------
  11  */
  12
  13 #ifndef __GSOCKET_H
  14 #define __GSOCKET_H
  15
  16 #ifndef __GSOCKET_STANDALONE__
  17 #include "wx/defs.h"
  18
  19 #include "wx/dlimpexp.h" /* for WXDLLIMPEXP_NET */
  20
  21 #endif
  22
  23 #if wxUSE_SOCKETS || defined(__GSOCKET_STANDALONE__)
  24
  25 #include <stddef.h>
  26
  27 /*
  28    Including sys/types.h under cygwin results in the warnings about "fd_set
  29    having been defined in sys/types.h" when winsock.h is included later and
  30    doesn't seem to be necessary anyhow. It's not needed under Mac neither.
  31  */
  32 #if !defined(__WXMAC__) && !defined(__CYGWIN__) && !defined(__WXWINCE__)
  33 #include <sys/types.h>
  34 #endif
  35
  36 #ifdef __WXWINCE__
  37 #include <stdlib.h>
  38 #endif
  39
  40 class GSocket;
  41
  42 #ifdef __cplusplus
  43 extern "C" {
  44 #endif
  45
  46 typedef struct _GAddress GAddress;
  47
  48 typedef enum {
  49   GSOCK_NOFAMILY = 0,
  50   GSOCK_INET,
  51   GSOCK_INET6,
  52   GSOCK_UNIX
  53 } GAddressType;
  54
  55 typedef enum {
  56   GSOCK_STREAMED,
  57   GSOCK_UNSTREAMED
  58 } GSocketStream;
  59
  60 typedef enum {
  61   GSOCK_NOERROR = 0,
  62   GSOCK_INVOP,
  63   GSOCK_IOERR,
  64   GSOCK_INVADDR,
  65   GSOCK_INVSOCK,
  66   GSOCK_NOHOST,
  67   GSOCK_INVPORT,
  68   GSOCK_WOULDBLOCK,
  69   GSOCK_TIMEDOUT,
  70   GSOCK_MEMERR,
  71   GSOCK_OPTERR
  72 } GSocketError;
  73
  74 /* See below for an explanation on how events work.
  75  */
  76 typedef enum {
  77   GSOCK_INPUT  = 0,
  78   GSOCK_OUTPUT = 1,
  79   GSOCK_CONNECTION = 2,
  80   GSOCK_LOST = 3,
  81   GSOCK_MAX_EVENT = 4
  82 } GSocketEvent;
  83
  84 enum {
  85   GSOCK_INPUT_FLAG = 1 << GSOCK_INPUT,
  86   GSOCK_OUTPUT_FLAG = 1 << GSOCK_OUTPUT,
  87   GSOCK_CONNECTION_FLAG = 1 << GSOCK_CONNECTION,
  88   GSOCK_LOST_FLAG = 1 << GSOCK_LOST
  89 };
  90
  91 typedef int GSocketEventFlags;
  92
  93 typedef void (*GSocketCallback)(GSocket *socket, GSocketEvent event,
  94                                 char *cdata);
  95
  96
  97 /* Functions tables for internal use by GSocket code: */
  98
  99 /* Actually this is a misnomer now, but reusing this name means I don't
 100    have to ifdef app traits or common socket code */
 101 class GSocketGUIFunctionsTable
 102 {
 103 public:
 104     // needed since this class declares virtual members
 105     virtual ~GSocketGUIFunctionsTable() { }
 106     virtual bool OnInit() = 0;
 107     virtual void OnExit() = 0;
 108     virtual bool CanUseEventLoop() = 0;
 109     virtual bool Init_Socket(GSocket *socket) = 0;
 110     virtual void Destroy_Socket(GSocket *socket) = 0;
 111 #ifndef __WINDOWS__
 112     virtual void Install_Callback(GSocket *socket, GSocketEvent event) = 0;
 113     virtual void Uninstall_Callback(GSocket *socket, GSocketEvent event) = 0;
 114 #endif
 115     virtual void Enable_Events(GSocket *socket) = 0;
 116     virtual void Disable_Events(GSocket *socket) = 0;
 117 };
 118
 119
 120 /* Global initializers */
 121
 122 /* Sets GUI functions callbacks. Must be called *before* GSocket_Init
 123    if the app uses async sockets. */
 124 void GSocket_SetGUIFunctions(GSocketGUIFunctionsTable *guifunc);
 125
 126 /* GSocket_Init() must be called at the beginning */
 127 int GSocket_Init(void);
 128
 129 /* GSocket_Cleanup() must be called at the end */
 130 void GSocket_Cleanup(void);
 131
 132
 133 /* Constructors / Destructors */
 134
 135 GSocket *GSocket_new(void);
 136
 137
 138 /* GAddress */
 139
 140 GAddress *GAddress_new(void);
 141 GAddress *GAddress_copy(GAddress *address);
 142 void GAddress_destroy(GAddress *address);
 143
 144 void GAddress_SetFamily(GAddress *address, GAddressType type);
 145 GAddressType GAddress_GetFamily(GAddress *address);
 146
 147 /* The use of any of the next functions will set the address family to
 148  * the specific one. For example if you use GAddress_INET_SetHostName,
 149  * address family will be implicitly set to AF_INET.
 150  */
 151
 152 GSocketError GAddress_INET_SetHostName(GAddress *address, const char *hostname);
 153 GSocketError GAddress_INET_SetAnyAddress(GAddress *address);
 154 GSocketError GAddress_INET_SetHostAddress(GAddress *address,
 155                                           unsigned long hostaddr);
 156 GSocketError GAddress_INET_SetPortName(GAddress *address, const char *port,
 157                                        const char *protocol);
 158 GSocketError GAddress_INET_SetPort(GAddress *address, unsigned short port);
 159
 160 GSocketError GAddress_INET_GetHostName(GAddress *address, char *hostname,
 161                                        size_t sbuf);
 162 unsigned long GAddress_INET_GetHostAddress(GAddress *address);
 163 unsigned short GAddress_INET_GetPort(GAddress *address);
 164
 165 /* TODO: Define specific parts (INET6, UNIX) */
 166
 167 GSocketError GAddress_UNIX_SetPath(GAddress *address, const char *path);
 168 GSocketError GAddress_UNIX_GetPath(GAddress *address, char *path, size_t sbuf);
 169
 170 #ifdef __cplusplus
 171 }
 172 #endif /* __cplusplus */
 173
 174 # if defined(__WINDOWS__)
 175 #  include "wx/msw/gsockmsw.h"
 176 # elif defined(__WXMAC__) && !defined(__DARWIN__)
 177 #  include "wx/mac/gsockmac.h"
 178 # else
 179 #  include "wx/unix/gsockunx.h"
 180 # endif
 181
 182 #endif    /* wxUSE_SOCKETS || defined(__GSOCKET_STANDALONE__) */
 183
 184 #endif    /* __GSOCKET_H */