From f50ae72ec3417cae55dd4e085991c01af9fdc5f1 Mon Sep 17 00:00:00 2001 From: Martin Nagy Date: Wed, 11 Feb 2009 20:37:59 +0100 Subject: Initial commit --- lib/isc/bufferlist.c | 64 ++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 64 insertions(+) create mode 100644 lib/isc/bufferlist.c (limited to 'lib/isc/bufferlist.c') diff --git a/lib/isc/bufferlist.c b/lib/isc/bufferlist.c new file mode 100644 index 0000000..0e5c125 --- /dev/null +++ b/lib/isc/bufferlist.c @@ -0,0 +1,64 @@ +/* + * Copyright (C) 2004, 2005, 2007 Internet Systems Consortium, Inc. ("ISC") + * Copyright (C) 1999-2001 Internet Software Consortium. + * + * Permission to use, copy, modify, and/or distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH + * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY + * AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT, + * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM + * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE + * OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR + * PERFORMANCE OF THIS SOFTWARE. + */ + +/* $Id: bufferlist.c,v 1.17 2007/06/19 23:47:17 tbox Exp $ */ + +/*! \file */ + +#include + +#include + +#include +#include +#include + +unsigned int +isc_bufferlist_usedcount(isc_bufferlist_t *bl) { + isc_buffer_t *buffer; + unsigned int length; + + REQUIRE(bl != NULL); + + length = 0; + buffer = ISC_LIST_HEAD(*bl); + while (buffer != NULL) { + REQUIRE(ISC_BUFFER_VALID(buffer)); + length += isc_buffer_usedlength(buffer); + buffer = ISC_LIST_NEXT(buffer, link); + } + + return (length); +} + +unsigned int +isc_bufferlist_availablecount(isc_bufferlist_t *bl) { + isc_buffer_t *buffer; + unsigned int length; + + REQUIRE(bl != NULL); + + length = 0; + buffer = ISC_LIST_HEAD(*bl); + while (buffer != NULL) { + REQUIRE(ISC_BUFFER_VALID(buffer)); + length += isc_buffer_availablelength(buffer); + buffer = ISC_LIST_NEXT(buffer, link); + } + + return (length); +} -- cgit