You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
kamailio/modules_s/rr/fix_lumps.h

113 lines
3.1 KiB

/*
* $Id$
*
* here, we delete message lumps which are generated in
* core functions using pkg_malloc and applied to shmem
* requests; not doing so would result ugly memory problems
*
* I admit it is not a nice hack; -jiri
*
* Copyright (C) 2001-2003 FhG Fokus
*
* This file is part of ser, a free SIP server.
*
* ser is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version
*
* For a license to use the ser software under conditions
* other than those described here, or to purchase support for this
* software, please contact iptel.org by e-mail at the following addresses:
* info@iptel.org
*
* ser 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
/*
* History:
* ........
* 2006-04-19: copy-pasted form TM module (Miklos)
*/
#ifndef _FIX_LUMPS_H
#define _FIX_LUMPS_H
inline static void free_rr_lump( struct lump **list )
{
struct lump *prev_lump, *lump, *a, *foo, *next;
int first_shmem;
first_shmem=1;
next=0;
prev_lump=0;
for(lump=*list;lump;lump=next) {
next=lump->next;
if (lump->type==HDR_RECORDROUTE_T) {
/* may be called from railure_route */
/* if (lump->flags & (LUMPFLAG_DUPED|LUMPFLAG_SHMEM)){
LOG(L_CRIT, "BUG: free_rr_lmp: lump %p, flags %x\n",
lump, lump->flags);
*/ /* ty to continue */
/*}*/
a=lump->before;
while(a) {
foo=a; a=a->before;
if (!(foo->flags&(LUMPFLAG_DUPED|LUMPFLAG_SHMEM)))
free_lump(foo);
if (!(foo->flags&LUMPFLAG_SHMEM))
pkg_free(foo);
}
a=lump->after;
while(a) {
foo=a; a=a->after;
if (!(foo->flags&(LUMPFLAG_DUPED|LUMPFLAG_SHMEM)))
free_lump(foo);
if (!(foo->flags&LUMPFLAG_SHMEM))
pkg_free(foo);
}
if (first_shmem && (lump->flags&LUMPFLAG_SHMEM)) {
/* This is the first element of the
shmemzied lump list, we can not unlink it!
It wound corrupt the list otherwise if we
are in failure_route. -- No problem, only the
anchor is left in the list */
LOG(L_DBG, "DEBUG: free_rr_lump: lump %p" \
" is left in the list\n",
lump);
if (lump->len)
LOG(L_CRIT, "BUG: free_rr_lump: lump %p" \
" can not be removed, but len=%d\n",
lump, lump->len);
prev_lump=lump;
} else {
if (prev_lump) prev_lump->next = lump->next;
else *list = lump->next;
if (!(lump->flags&(LUMPFLAG_DUPED|LUMPFLAG_SHMEM)))
free_lump(lump);
if (!(lump->flags&LUMPFLAG_SHMEM))
pkg_free(lump);
}
} else {
/* store previous position */
prev_lump=lump;
}
if (first_shmem && (lump->flags&LUMPFLAG_SHMEM))
first_shmem=0;
}
}
#endif