bufferlist.c revision 9c3531d72aeaad6c5f01efe6a1c82023e1379e4d
/*
* Copyright (C) 1999, 2000 Internet Software Consortium.
*
* Permission to use, copy, modify, and 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 INTERNET SOFTWARE CONSORTIUM DISCLAIMS
* ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL INTERNET SOFTWARE
* CONSORTIUM 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 1.9 2000/06/22 21:56:52 tale Exp $ */
#include <config.h>
#include <stddef.h>
#include <isc/buffer.h>
#include <isc/bufferlist.h>
#include <isc/util.h>
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);
}