60 lines
1.5 KiB
C
60 lines
1.5 KiB
C
/*
|
|
* Circular buffer management
|
|
*
|
|
* Copyright 2021 HAProxy Technologies, Frederic Lecaille <flecaill@haproxy.com>
|
|
*
|
|
* This library is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU Lesser General Public
|
|
* License as published by the Free Software Foundation, version 2.1
|
|
* exclusively.
|
|
*
|
|
* This library is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
* Lesser General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Lesser General Public
|
|
* License along with this library; if not, write to the Free Software
|
|
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
|
|
*/
|
|
|
|
#include <haproxy/list.h>
|
|
#include <haproxy/pool.h>
|
|
#include <haproxy/cbuf-t.h>
|
|
|
|
DECLARE_POOL(pool_head_cbuf, "cbuf", sizeof(struct cbuf));
|
|
|
|
/* Allocate and return a new circular buffer with <buf> as <sz> byte internal buffer
|
|
* if succeeded, NULL if not.
|
|
*/
|
|
struct cbuf *cbuf_new(unsigned char *buf, size_t sz)
|
|
{
|
|
struct cbuf *cbuf;
|
|
|
|
cbuf = pool_alloc(pool_head_cbuf);
|
|
if (cbuf) {
|
|
cbuf->sz = sz;
|
|
cbuf->buf = buf;
|
|
cbuf->wr = 0;
|
|
cbuf->rd = 0;
|
|
}
|
|
|
|
return cbuf;
|
|
}
|
|
|
|
/* Free QUIC ring <cbuf> */
|
|
void cbuf_free(struct cbuf *cbuf)
|
|
{
|
|
if (!cbuf)
|
|
return;
|
|
|
|
pool_free(pool_head_cbuf, cbuf);
|
|
}
|
|
|
|
/*
|
|
* Local variables:
|
|
* c-indent-level: 8
|
|
* c-basic-offset: 8
|
|
* End:
|
|
*/
|