/src/nghttp2/lib/nghttp2_rcbuf.c

Source
/*
 * 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 = (nghttp2_rcbuf){
    .mem_user_data = mem->mem_user_data,
    .free = mem->free,
    .base = p + sizeof(nghttp2_rcbuf),
    .len = size,
    .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;
}

Line	Count	Source
1		/*
2		* nghttp2 - HTTP/2 C Library
3		*
4		* Copyright (c) 2016 Tatsuhiro Tsujikawa
5		*
6		* Permission is hereby granted, free of charge, to any person obtaining
7		* a copy of this software and associated documentation files (the
8		* "Software"), to deal in the Software without restriction, including
9		* without limitation the rights to use, copy, modify, merge, publish,
10		* distribute, sublicense, and/or sell copies of the Software, and to
11		* permit persons to whom the Software is furnished to do so, subject to
12		* the following conditions:
13		*
14		* The above copyright notice and this permission notice shall be
15		* included in all copies or substantial portions of the Software.
16		*
17		* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
18		* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
19		* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
20		* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
21		* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
22		* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
23		* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
24		*/
25		#include "nghttp2_rcbuf.h"
26
27		#include <string.h>
28		#include <assert.h>
29
30		#include "nghttp2_mem.h"
31		#include "nghttp2_helper.h"
32
33		int nghttp2_rcbuf_new(nghttp2_rcbuf **rcbuf_ptr, size_t size,
34	165k	nghttp2_mem *mem) {
35	165k	uint8_t *p;
36
37	165k	p = nghttp2_mem_malloc(mem, sizeof(nghttp2_rcbuf) + size);
38	165k	if (p == NULL) {
39	0	return NGHTTP2_ERR_NOMEM;
40	0	}
41
42	165k	rcbuf_ptr = (void )p;
43
44	165k	**rcbuf_ptr = (nghttp2_rcbuf){
45	165k	.mem_user_data = mem->mem_user_data,
46	165k	.free = mem->free,
47	165k	.base = p + sizeof(nghttp2_rcbuf),
48	165k	.len = size,
49	165k	.ref = 1,
50	165k	};
51
52	165k	return 0;
53	165k	}
54
55		int nghttp2_rcbuf_new2(nghttp2_rcbuf *rcbuf_ptr, const uint8_t src,
56	0	size_t srclen, nghttp2_mem *mem) {
57	0	int rv;
58
59	0	rv = nghttp2_rcbuf_new(rcbuf_ptr, srclen + 1, mem);
60	0	if (rv != 0) {
61	0	return rv;
62	0	}
63
64	0	(*rcbuf_ptr)->len = srclen;
65	0	nghttp2_cpymem((rcbuf_ptr)->base, src, srclen) = '\0';
66
67	0	return 0;
68	0	}
69
70		/*
71		* Frees \|rcbuf\| itself, regardless of its reference cout.
72		*/
73	165k	void nghttp2_rcbuf_del(nghttp2_rcbuf *rcbuf) {
74	165k	nghttp2_mem_free2(rcbuf->free, rcbuf, rcbuf->mem_user_data);
75	165k	}
76
77	69.4k	void nghttp2_rcbuf_incref(nghttp2_rcbuf *rcbuf) {
78	69.4k	if (rcbuf->ref == -1) {
79	32.6k	return;
80	32.6k	}
81
82	36.8k	++rcbuf->ref;
83	36.8k	}
84
85	559k	void nghttp2_rcbuf_decref(nghttp2_rcbuf *rcbuf) {
86	559k	if (rcbuf == NULL \|\| rcbuf->ref == -1) {
87	356k	return;
88	356k	}
89
90	559k	assert(rcbuf->ref > 0);
91
92	202k	if (--rcbuf->ref == 0) {
93	165k	nghttp2_rcbuf_del(rcbuf);
94	165k	}
95	202k	}
96
97	0	nghttp2_vec nghttp2_rcbuf_get_buf(nghttp2_rcbuf *rcbuf) {
98	0	nghttp2_vec res = {rcbuf->base, rcbuf->len};
99	0	return res;
100	0	}
101
102	0	int nghttp2_rcbuf_is_static(const nghttp2_rcbuf *rcbuf) {
103	0	return rcbuf->ref == -1;
104	0	}

Coverage Report

Created: 2026-05-30 06:40