1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
|
/*
* nghttp2 - HTTP/2 C Library
*
* Copyright (c) 2016 Tatsuhiro Tsujikawa
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
#include "nghttp2_rcbuf.h"
#include <string.h>
#include <assert.h>
#include "nghttp2_mem.h"
#include "nghttp2_helper.h"
int nghttp2_rcbuf_new(nghttp2_rcbuf **rcbuf_ptr, size_t size,
nghttp2_mem *mem) {
uint8_t *p;
p = nghttp2_mem_malloc(mem, sizeof(nghttp2_rcbuf) + size);
if (p == NULL) {
return NGHTTP2_ERR_NOMEM;
}
*rcbuf_ptr = (void *)p;
(*rcbuf_ptr)->mem_user_data = mem->mem_user_data;
(*rcbuf_ptr)->free = mem->free;
(*rcbuf_ptr)->base = p + sizeof(nghttp2_rcbuf);
(*rcbuf_ptr)->len = size;
(*rcbuf_ptr)->ref = 1;
return 0;
}
int nghttp2_rcbuf_new2(nghttp2_rcbuf **rcbuf_ptr, const uint8_t *src,
size_t srclen, nghttp2_mem *mem) {
int rv;
rv = nghttp2_rcbuf_new(rcbuf_ptr, srclen + 1, mem);
if (rv != 0) {
return rv;
}
(*rcbuf_ptr)->len = srclen;
*nghttp2_cpymem((*rcbuf_ptr)->base, src, srclen) = '\0';
return 0;
}
/*
* Frees |rcbuf| itself, regardless of its reference cout.
*/
void nghttp2_rcbuf_del(nghttp2_rcbuf *rcbuf) {
nghttp2_mem_free2(rcbuf->free, rcbuf, rcbuf->mem_user_data);
}
void nghttp2_rcbuf_incref(nghttp2_rcbuf *rcbuf) {
if (rcbuf->ref == -1) {
return;
}
++rcbuf->ref;
}
void nghttp2_rcbuf_decref(nghttp2_rcbuf *rcbuf) {
if (rcbuf == NULL || rcbuf->ref == -1) {
return;
}
assert(rcbuf->ref > 0);
if (--rcbuf->ref == 0) {
nghttp2_rcbuf_del(rcbuf);
}
}
nghttp2_vec nghttp2_rcbuf_get_buf(nghttp2_rcbuf *rcbuf) {
nghttp2_vec res = {rcbuf->base, rcbuf->len};
return res;
}
int nghttp2_rcbuf_is_static(const nghttp2_rcbuf *rcbuf) {
return rcbuf->ref == -1;
}
|
