oRTP 0.25.0

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str_utils.h
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 */
19
20 #ifndef STR_UTILS_H
21 #define STR_UTILS_H
22
23
24 #include <ortp/port.h>
25 #if defined(ORTP_TIMESTAMP)
26 #include <time.h>
27 #endif
28
29
30 #ifndef MIN
31 #define MIN(a,b) (((a)>(b)) ? (b) : (a))
32 #endif
33 #ifndef MAX
34 #define MAX(a,b) (((a)>(b)) ? (a) : (b))
35 #endif
36
37 #define return_if_fail(expr) if (!(expr)) {printf("%s:%i- assertion"#expr "failed\n",__FILE__,__LINE__); return;}
38 #define return_val_if_fail(expr,ret) if (!(expr)) {printf("%s:%i- assertion" #expr "failed\n",__FILE__,__LINE__); return (ret);}
39
40
41 typedef struct ortp_recv_addr {
42 int family;
43 union {
44 struct in_addr ipi_addr;
45 struct in6_addr ipi6_addr;
46 } addr;
47 } ortp_recv_addr_t;
48
49 typedef struct msgb
50 {
51 struct msgb *b_prev;
52 struct msgb *b_next;
53 struct msgb *b_cont;
54 struct datab *b_datap;
55 unsigned char *b_rptr;
56 unsigned char *b_wptr;
57 uint32_t reserved1;
58 uint32_t reserved2;
59 #if defined(ORTP_TIMESTAMP)
60 struct timeval timestamp;
61 #endif
62 ortp_recv_addr_t recv_addr; /*contains the destination address of incoming packets, used for ICE processing*/
63 struct sockaddr_storage net_addr; /*source address of incoming packet, or dest address of outgoing packet, used only by simulator and modifiers*/
64 socklen_t net_addrlen; /*source (dest) address of incoming (outgoing) packet length used by simulator and modifiers*/
65 uint8_t ttl_or_hl;
66 } mblk_t;
67
68
69
70 typedef struct datab
71 {
72 unsigned char *db_base;
73 unsigned char *db_lim;
74 void (*db_freefn)(void*);
75 int db_ref;
76 } dblk_t;
77
78 typedef struct _queue
79 {
80 mblk_t _q_stopper;
81 int q_mcount; /*number of packet in the q */
82 } queue_t;
83
84 #ifdef __cplusplus
85 extern "C" {
86 #endif
87
88 ORTP_PUBLIC void qinit(queue_t *q);
89
90 ORTP_PUBLIC void putq(queue_t *q, mblk_t *m);
91
92 ORTP_PUBLIC mblk_t * getq(queue_t *q);
93
94 ORTP_PUBLIC void insq(queue_t *q,mblk_t *emp, mblk_t *mp);
95
96 ORTP_PUBLIC void remq(queue_t *q, mblk_t *mp);
97
98 ORTP_PUBLIC mblk_t * peekq(queue_t *q);
99
100 /* remove and free all messages in the q */
101 #define FLUSHALL 0
102 ORTP_PUBLIC void flushq(queue_t *q, int how);
103
104 ORTP_PUBLIC void mblk_init(mblk_t *mp);
105
106 ORTP_PUBLIC void mblk_meta_copy(const mblk_t *source, mblk_t *dest);
107
108 /* allocates a mblk_t, that points to a datab_t, that points to a buffer of size size. */
109 ORTP_PUBLIC mblk_t *allocb(size_t size, int unused);
110 #define BPRI_MED 0
111
112 /* allocates a mblk_t, that points to a datab_t, that points to buf; buf will be freed using freefn */
113 ORTP_PUBLIC mblk_t *esballoc(uint8_t *buf, size_t size, int pri, void (*freefn)(void*) );
114
115 /* frees a mblk_t, and if the datab ref_count is 0, frees it and the buffer too */
116 ORTP_PUBLIC void freeb(mblk_t *m);
117
118 /* frees recursively (follow b_cont) a mblk_t, and if the datab
119 ref_count is 0, frees it and the buffer too */
120 ORTP_PUBLIC void freemsg(mblk_t *mp);
121
122 /* duplicates a mblk_t , buffer is not duplicated*/
123 ORTP_PUBLIC mblk_t *dupb(mblk_t *m);
124
125 /* duplicates a complex mblk_t, buffer is not duplicated */
126 ORTP_PUBLIC mblk_t *dupmsg(mblk_t* m);
127
128 /* returns the size of data of a message */
129 ORTP_PUBLIC size_t msgdsize(const mblk_t *mp);
130
131 /* concatenates all fragment of a complex message*/
132 ORTP_PUBLIC void msgpullup(mblk_t *mp,size_t len);
133
134 /* duplicates a single message, but with buffer included */
135 ORTP_PUBLIC mblk_t *copyb(const mblk_t *mp);
136
137 /* duplicates a complex message with buffer included */
138 ORTP_PUBLIC mblk_t *copymsg(const mblk_t *mp);
139
140 ORTP_PUBLIC mblk_t * appendb(mblk_t *mp, const char *data, size_t size, bool_t pad);
141 ORTP_PUBLIC void msgappend(mblk_t *mp, const char *data, size_t size, bool_t pad);
142
143 ORTP_PUBLIC mblk_t *concatb(mblk_t *mp, mblk_t *newm);
144
145 #define qempty(q) (&(q)->_q_stopper==(q)->_q_stopper.b_next)
146 #define qfirst(q) ((q)->_q_stopper.b_next!=&(q)->_q_stopper ? (q)->_q_stopper.b_next : NULL)
147 #define qbegin(q) ((q)->_q_stopper.b_next)
148 #define qlast(q) ((q)->_q_stopper.b_prev!=&(q)->_q_stopper ? (q)->_q_stopper.b_prev : NULL)
149 #define qend(q,mp) ((mp)==&(q)->_q_stopper)
150 #define qnext(q,mp) ((mp)->b_next)
151
152 typedef struct _msgb_allocator{
153 queue_t q;
154 }msgb_allocator_t;
155
156 ORTP_PUBLIC void msgb_allocator_init(msgb_allocator_t *pa);
157 ORTP_PUBLIC mblk_t *msgb_allocator_alloc(msgb_allocator_t *pa, size_t size);
158 ORTP_PUBLIC void msgb_allocator_uninit(msgb_allocator_t *pa);
159
164 typedef struct _ortp_extremum{
165 float current_extremum;
166 float last_stable;
167 uint64_t extremum_time;
168 int period;
169 }ortp_extremum;
170
171 ORTP_PUBLIC void ortp_extremum_reset(ortp_extremum *obj);
172 ORTP_PUBLIC void ortp_extremum_init(ortp_extremum *obj, int period);
173 ORTP_PUBLIC void ortp_extremum_record_min(ortp_extremum *obj, uint64_t curtime, float value);
174 ORTP_PUBLIC void ortp_extremum_record_max(ortp_extremum *obj, uint64_t curtime, float value);
175 ORTP_PUBLIC float ortp_extremum_get_current(ortp_extremum *obj);
179 ORTP_PUBLIC float ortp_extremum_get_previous(ortp_extremum *obj);
180
181 #ifdef __cplusplus
182 }
183 #endif
184
185 #endif
ortp_recv_addr
Definition: str_utils.h:41
msgb
Definition: str_utils.h:49
_queue
Definition: str_utils.h:78
datab
Definition: str_utils.h:70
_msgb_allocator
Definition: str_utils.h:152
_ortp_extremum
Definition: str_utils.h:164