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oRTP: include/ortp/sessionset.h Source File
oRTP  0.24.0
sessionset.h
Go to the documentation of this file.
1 /*
2  The oRTP library is an RTP (Realtime Transport Protocol - rfc3550) stack.
3  Copyright (C) 2001 Simon MORLAT simon.morlat@linphone.org
4 
5  This library is free software; you can redistribute it and/or
6  modify it under the terms of the GNU Lesser General Public
7  License as published by the Free Software Foundation; either
8  version 2.1 of the License, or (at your option) any later version.
9 
10  This library is distributed in the hope that it will be useful,
11  but WITHOUT ANY WARRANTY; without even the implied warranty of
12  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13  Lesser General Public License for more details.
14 
15  You should have received a copy of the GNU Lesser General Public
16  License along with this library; if not, write to the Free Software
17  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
18 */
24 #ifndef SESSIONSET_H
25 #define SESSIONSET_H
26 
27 
28 #include <ortp/rtpsession.h>
29 
30 #ifdef __cplusplus
31 extern "C"{
32 #endif
33 
34 
35 #if !defined(_WIN32) && !defined(_WIN32_WCE)
36 /* UNIX */
37 #include <sys/time.h>
38 #include <sys/types.h>
39 #include <unistd.h>
40 
41 #define ORTP_FD_SET(d, s) FD_SET(d, s)
42 #define ORTP_FD_CLR(d, s) FD_CLR(d, s)
43 #define ORTP_FD_ISSET(d, s) FD_ISSET(d, s)
44 #define ORTP_FD_ZERO(s) FD_ZERO(s)
45 
46 typedef fd_set ortp_fd_set;
47 
48 
49 #else
50 /* WIN32 */
51 
52 #define ORTP_FD_ZERO(s) \
53  do { \
54  unsigned int __i; \
55  ortp_fd_set *__arr = (s); \
56  for (__i = 0; __i < sizeof (ortp_fd_set) / sizeof (ortp__fd_mask); ++__i) \
57  ORTP__FDS_BITS (__arr)[__i] = 0; \
58  } while (0)
59 #define ORTP_FD_SET(d, s) (ORTP__FDS_BITS (s)[ORTP__FDELT(d)] |= ORTP__FDMASK(d))
60 #define ORTP_FD_CLR(d, s) (ORTP__FDS_BITS (s)[ORTP__FDELT(d)] &= ~ORTP__FDMASK(d))
61 #define ORTP_FD_ISSET(d, s) ((ORTP__FDS_BITS (s)[ORTP__FDELT(d)] & ORTP__FDMASK(d)) != 0)
62 
63 
64 
65 /* The fd_set member is required to be an array of longs. */
66 typedef long int ortp__fd_mask;
67 
68 
69 /* Number of bits per word of `fd_set' (some code assumes this is 32). */
70 #define ORTP__FD_SETSIZE 1024
71 
72 /* It's easier to assume 8-bit bytes than to get CHAR_BIT. */
73 #define ORTP__NFDBITS (8 * sizeof (ortp__fd_mask))
74 #define ORTP__FDELT(d) ((d) / ORTP__NFDBITS)
75 #define ORTP__FDMASK(d) ((ortp__fd_mask) 1 << ((d) % ORTP__NFDBITS))
76 
77 
78 /* fd_set for select and pselect. */
79 typedef struct
80  {
81  ortp__fd_mask fds_bits[ORTP__FD_SETSIZE / ORTP__NFDBITS];
82 # define ORTP__FDS_BITS(set) ((set)->fds_bits)
83  } ortp_fd_set;
84 
85 
86 #endif /*end WIN32*/
87 
89 {
90  ortp_fd_set rtpset;
91 };
92 
93 
94 typedef struct _SessionSet SessionSet;
95 
96 #define session_set_init(ss) ORTP_FD_ZERO(&(ss)->rtpset)
97 
98 ORTP_PUBLIC SessionSet * session_set_new(void);
104 #define session_set_set(ss,rtpsession) ORTP_FD_SET((rtpsession)->mask_pos,&(ss)->rtpset)
105 
112 #define session_set_is_set(ss,rtpsession) ORTP_FD_ISSET((rtpsession)->mask_pos,&(ss)->rtpset)
113 
121 #define session_set_clr(ss,rtpsession) ORTP_FD_CLR((rtpsession)->mask_pos,&(ss)->rtpset)
122 
123 #define session_set_copy(dest,src) memcpy(&(dest)->rtpset,&(src)->rtpset,sizeof(ortp_fd_set))
124 
125 
129 ORTP_PUBLIC void session_set_destroy(SessionSet *set);
130 
131 
132 ORTP_PUBLIC int session_set_select(SessionSet *recvs, SessionSet *sends, SessionSet *errors);
133 ORTP_PUBLIC int session_set_timedselect(SessionSet *recvs, SessionSet *sends, SessionSet *errors, struct timeval *timeout);
134 
135 #ifdef __cplusplus
136 }
137 #endif
138 
139 #endif
ORTP_PUBLIC int session_set_select(SessionSet *recvs, SessionSet *sends, SessionSet *errors)
Definition: sessionset.c:113
Definition: sessionset.h:88
The RtpSession api.
ORTP_PUBLIC void session_set_destroy(SessionSet *set)
Definition: sessionset.c:43
ORTP_PUBLIC SessionSet * session_set_new(void)
Definition: sessionset.c:30