From da76459dc21b5af2449af2d36eb95226cb186ce2 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 28 Apr 2024 11:35:11 +0200 Subject: Adding upstream version 2.6.12. Signed-off-by: Daniel Baumann --- src/cbuf.c | 59 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 59 insertions(+) create mode 100644 src/cbuf.c (limited to 'src/cbuf.c') diff --git a/src/cbuf.c b/src/cbuf.c new file mode 100644 index 0000000..b36bbeb --- /dev/null +++ b/src/cbuf.c @@ -0,0 +1,59 @@ +/* + * Circular buffer management + * + * Copyright 2021 HAProxy Technologies, Frederic Lecaille + * + * 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 +#include +#include + +DECLARE_POOL(pool_head_cbuf, "cbuf", sizeof(struct cbuf)); + +/* Allocate and return a new circular buffer with as 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 */ +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: + */ -- cgit v1.2.3