Commit 85f0f10e authored by Michael Graff's avatar Michael Graff

add bufferlist.c and bufferlist.h

parent 658c72a4
......@@ -37,14 +37,14 @@ NLSOBJS = nls/msgcat.@O@
PTHREADOBJS = pthreads/condition.@O@
OBJS = @ISC_EXTRA_OBJS@ \
assertions.@O@ base64.@O@ buffer.@O@ error.@O@ \
assertions.@O@ base64.@O@ buffer.@O@ bufferlist.@O@ error.@O@ \
heap.@O@ lex.@O@ lib.@O@ mem.@O@ result.@O@ \
rwlock.@O@ serial.@O@ sockaddr.@O@ symtab.@O@ str.@O@ event.@O@ \
task.@O@ timer.@O@ version.@O@ \
${UNIXOBJS} ${NLSOBJS} ${PTHREADOBJS}
SRCS = @ISC_EXTRA_SRCS@ \
assertions.c base64.c buffer.c error.c \
assertions.c base64.c buffer.c bufferlist.c error.c \
heap.c lex.c lib.c mem.c result.c \
rwlock.c sockaddr.c symtab.c str.c event.c \
task.c timer.c version.c
......
/*
* Copyright (C) 1999 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.
*/
#include <config.h>
#include <isc/assertions.h>
#include <isc/buffer.h>
#include <isc/bufferlist.h>
#include <isc/list.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) {
length += isc_buffer_usedcount(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) {
length += isc_buffer_availablecount(buffer);
buffer = ISC_LIST_NEXT(buffer, link);
}
return (length);
}
......@@ -19,7 +19,8 @@ top_srcdir = @top_srcdir@
@BIND9_VERSION@
HEADERS = assertions.h base64.h boolean.h buffer.h error.h event.h \
HEADERS = assertions.h base64.h boolean.h buffer.h bufferlist.h \
error.h event.h \
eventclass.h heap.h int.h interfaceiter.h lang.h lex.h lib.h \
list.h mem.h msgcat.h netaddr.h rbtgen.h region.h result.h \
resultclass.h rwlock.h serial.h sockaddr.h socket.h str.h \
......
/*
* Copyright (C) 1998, 1999 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.
*/
#ifndef ISC_BUFFERLIST_H
#define ISC_BUFFERLIST_H 1
/*****
***** Module Info
*****/
/*
* Buffer Lists
*
* Buffer lists have no synchronization. Clients must ensure exclusive
* access.
*
* Reliability:
* No anticipated impact.
* Security:
* No anticipated impact.
*
* Standards:
* None.
*/
/***
*** Imports
***/
#include <isc/lang.h>
#include <isc/buffer.h>
#include <isc/bufferlist.h>
#include <isc/list.h>
#include <isc/mem.h>
#include <isc/region.h>
#include <isc/int.h>
ISC_LANG_BEGINDECLS
/***
*** Types
***/
typedef ISC_LIST(isc_buffer_t) isc_bufferlist_t;
/***
*** Functions
***/
unsigned int
isc_bufferlist_usedcount(isc_bufferlist_t *bl);
/*
* Return the length of the sum of all used regions of all buffers in
* the buffer list 'bl'
*
* Requires:
*
* 'bl' is not NULL.
*
* Returns:
* sum of all used regions' lengths.
*/
unsigned int
isc_bufferlist_availablecount(isc_bufferlist_t *bl);
/*
* Return the length of the sum of all available regions of all buffers in
* the buffer list 'bl'
*
* Requires:
*
* 'bl' is not NULL.
*
* Returns:
* sum of all available regions' lengths.
*/
ISC_LANG_ENDDECLS
#endif /* ISC_BUFFERLIST_H */
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