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Generalize framework to register monitoring of files in nscd

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nscd can clear caches when certain files change.  The list of files
was hardcoded so far and worked for nss_files and nss_dns and those
modules which need no monitoring.  nss_db, for instance, has its
own set of files to monitor.  Now the NSS modules themselves can
request that certain files are monitored.
This commit is contained in:
Ulrich Drepper
2011-07-11 14:50:24 -04:00
parent 23bee3e867
commit 319b9ad4bc
12 changed files with 446 additions and 159 deletions
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54
nss/nss_db/db-init.c Normal file
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/* Initialization in nss_db module.
Copyright (C) 2011 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C 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; either
version 2.1 of the License, or (at your option) any later version.
The GNU C 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 the GNU C Library; if not, write to the Free
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307 USA. */
#include <paths.h>
#include <nscd/nscd.h>
static union
{
struct traced_file file;
char buf[sizeof (struct traced_file) + sizeof (_PATH_VARDB "passwd.db")];
} pwd_traced_file;
static union
{
struct traced_file file;
char buf[sizeof (struct traced_file) + sizeof (_PATH_VARDB "group.db")];
} grp_traced_file;
static union
{
struct traced_file file;
char buf[sizeof (struct traced_file) + sizeof (_PATH_VARDB "services.db")];
} serv_traced_file;
void
_nss_db_init (void (*cb) (size_t, struct traced_file *))
{
strcpy (pwd_traced_file.file.fname,_PATH_VARDB "passwd.db");
cb (pwddb, &pwd_traced_file.file);
strcpy (grp_traced_file.file.fname, _PATH_VARDB "group.db");
cb (grpdb, &grp_traced_file.file);
strcpy (serv_traced_file.file.fname, _PATH_VARDB "services.db");
cb (servdb, &serv_traced_file.file);
}