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#line 2 "@srcdir@/lib/dirs.c.in"
/*
* Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013 Nicira, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <config.h>
#include "dirs.h"
#include <stdlib.h>
#include "ovs-thread.h"
#include "util.h"
struct directory {
const char *value; /* Actual value; NULL if not yet determined. */
const char *default_value; /* Default value. */
const char *var_name; /* Environment variable to override default. */
struct ovsthread_once once; /* Ensures 'value' gets initialized once. */
};
static const char *
get_dir(struct directory *d)
{
if (ovsthread_once_start(&d->once)) {
d->value = getenv(d->var_name);
if (!d->value || !d->value[0]) {
d->value = d->default_value;
}
ovsthread_once_done(&d->once);
}
return d->value;
}
const char *
ovs_sysconfdir(void)
{
static struct directory d = {
NULL, @sysconfdir@, "OVS_SYSCONFDIR", OVSTHREAD_ONCE_INITIALIZER
};
return get_dir(&d);
}
const char *
ovs_pkgdatadir(void)
{
static struct directory d = {
NULL, @pkgdatadir@, "OVS_PKGDATADIR", OVSTHREAD_ONCE_INITIALIZER
};
return get_dir(&d);
}
const char *
ovs_rundir(void)
{
static struct directory d = {
NULL, @RUNDIR@, "OVS_RUNDIR", OVSTHREAD_ONCE_INITIALIZER
};
return get_dir(&d);
}
const char *
ovs_logdir(void)
{
static struct directory d = {
NULL, @LOGDIR@, "OVS_LOGDIR", OVSTHREAD_ONCE_INITIALIZER
};
return get_dir(&d);
}
const char *
ovs_dbdir(void)
{
static struct ovsthread_once once = OVSTHREAD_ONCE_INITIALIZER;
static const char *dbdir;
if (ovsthread_once_start(&once)) {
dbdir = getenv("OVS_DBDIR");
if (!dbdir || !dbdir[0]) {
char *sysconfdir = getenv("OVS_SYSCONFDIR");
dbdir = (sysconfdir
? xasprintf("%s/openvswitch", sysconfdir)
: @DBDIR@);
}
ovsthread_once_done(&once);
}
return dbdir;
}
const char *
ovs_bindir(void)
{
static struct directory d = {
NULL, @bindir@, "OVS_BINDIR", OVSTHREAD_ONCE_INITIALIZER
};
return get_dir(&d);
}
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