1 /* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
2 /*
3 * dbus-socket-set.h - used to bolt file descriptors onto a bus
4 *
5 * Copyright © 2011 Nokia Corporation
6 *
7 * Licensed under the Academic Free License version 2.1
8 *
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or
12 * (at your option) any later version.
13 *
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
18 *
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
22 * MA 02110-1301 USA
23 *
24 */
25
26 #ifndef DBUS_SOCKET_SET_H
27 #define DBUS_SOCKET_SET_H
28
29 #ifndef DOXYGEN_SHOULD_SKIP_THIS
30
31 #include <dbus/dbus.h>
32
33 typedef struct {
34 int fd;
35 unsigned int flags;
36 } DBusSocketEvent;
37
38 typedef struct DBusSocketSet DBusSocketSet;
39
40 typedef struct DBusSocketSetClass DBusSocketSetClass;
41 struct DBusSocketSetClass {
42 void (*free) (DBusSocketSet *self);
43 dbus_bool_t (*add) (DBusSocketSet *self,
44 int fd,
45 unsigned int flags,
46 dbus_bool_t enabled);
47 void (*remove) (DBusSocketSet *self,
48 int fd);
49 void (*enable) (DBusSocketSet *self,
50 int fd,
51 unsigned int flags);
52 void (*disable) (DBusSocketSet *self,
53 int fd);
54 int (*poll) (DBusSocketSet *self,
55 DBusSocketEvent *revents,
56 int max_events,
57 int timeout_ms);
58 };
59
60 struct DBusSocketSet {
61 DBusSocketSetClass *cls;
62 };
63
64 DBusSocketSet *_dbus_socket_set_new (int size_hint);
65
66 static inline void
_dbus_socket_set_free(DBusSocketSet * self)67 _dbus_socket_set_free (DBusSocketSet *self)
68 {
69 (self->cls->free) (self);
70 }
71
72 static inline dbus_bool_t
_dbus_socket_set_add(DBusSocketSet * self,int fd,unsigned int flags,dbus_bool_t enabled)73 _dbus_socket_set_add (DBusSocketSet *self,
74 int fd,
75 unsigned int flags,
76 dbus_bool_t enabled)
77 {
78 return (self->cls->add) (self, fd, flags, enabled);
79 }
80
81 static inline void
_dbus_socket_set_remove(DBusSocketSet * self,int fd)82 _dbus_socket_set_remove (DBusSocketSet *self,
83 int fd)
84 {
85 (self->cls->remove) (self, fd);
86 }
87
88 static inline void
_dbus_socket_set_enable(DBusSocketSet * self,int fd,unsigned int flags)89 _dbus_socket_set_enable (DBusSocketSet *self,
90 int fd,
91 unsigned int flags)
92 {
93 (self->cls->enable) (self, fd, flags);
94 }
95
96 static inline void
_dbus_socket_set_disable(DBusSocketSet * self,int fd)97 _dbus_socket_set_disable (DBusSocketSet *self,
98 int fd)
99 {
100 (self->cls->disable) (self, fd);
101 }
102
103
104 static inline int
_dbus_socket_set_poll(DBusSocketSet * self,DBusSocketEvent * revents,int max_events,int timeout_ms)105 _dbus_socket_set_poll (DBusSocketSet *self,
106 DBusSocketEvent *revents,
107 int max_events,
108 int timeout_ms)
109 {
110 return (self->cls->poll) (self, revents, max_events, timeout_ms);
111 }
112
113 /* concrete implementations, not necessarily built on all platforms */
114
115 extern DBusSocketSetClass _dbus_socket_set_poll_class;
116 extern DBusSocketSetClass _dbus_socket_set_epoll_class;
117
118 DBusSocketSet *_dbus_socket_set_poll_new (int size_hint);
119 DBusSocketSet *_dbus_socket_set_epoll_new (void);
120
121 #endif /* !DOXYGEN_SHOULD_SKIP_THIS */
122 #endif /* multiple-inclusion guard */
123