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: gsocket.h 33948 2005-05-04 18:57:50Z JS $
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
~GSocketGUIFunctionsTable()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 */
185