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/*
Copyright (c) 2009 Gluster, Inc. <http://www.gluster.com>
This file is part of GlusterFS.
GlusterFS 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 3 of the License,
or (at your option) any later version.
GlusterFS 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, see
<http://www.gnu.org/licenses/>.
*/
#ifndef _CONFIG_H
#define _CONFIG_H
#include "config.h"
#endif /* !_CONFIG_H */
#include <pthread.h>
#include "globals.h"
#include "glusterfs.h"
#include "xlator.h"
/* CTX */
static glusterfs_ctx_t *glusterfs_ctx;
int
glusterfs_ctx_init ()
{
int ret = 0;
if (glusterfs_ctx)
goto out;
glusterfs_ctx = CALLOC (1, sizeof (*glusterfs_ctx));
if (!glusterfs_ctx) {
ret = -1;
goto out;
}
ret = pthread_mutex_init (&glusterfs_ctx->lock, NULL);
out:
return ret;
}
glusterfs_ctx_t *
glusterfs_ctx_get ()
{
return glusterfs_ctx;
}
/* THIS */
xlator_t global_xlator;
static pthread_key_t this_xlator_key;
void
glusterfs_this_destroy (void *ptr)
{
if (ptr)
FREE (ptr);
}
int
glusterfs_this_init ()
{
int ret = 0;
ret = pthread_key_create (&this_xlator_key, glusterfs_this_destroy);
if (ret != 0) {
return ret;
}
global_xlator.name = "glusterfs";
global_xlator.type = "global";
global_xlator.ctx = glusterfs_ctx;
return ret;
}
xlator_t **
__glusterfs_this_location ()
{
xlator_t **this_location = NULL;
int ret = 0;
this_location = pthread_getspecific (this_xlator_key);
if (!this_location) {
this_location = CALLOC (1, sizeof (*this_location));
if (!this_location)
goto out;
ret = pthread_setspecific (this_xlator_key, this_location);
if (ret != 0) {
FREE (this_location);
this_location = NULL;
goto out;
}
}
out:
if (this_location) {
if (!*this_location)
*this_location = &global_xlator;
}
return this_location;
}
xlator_t *
glusterfs_this_get ()
{
xlator_t **this_location = NULL;
this_location = __glusterfs_this_location ();
if (!this_location)
return &global_xlator;
return *this_location;
}
int
glusterfs_this_set (xlator_t *this)
{
xlator_t **this_location = NULL;
this_location = __glusterfs_this_location ();
if (!this_location)
return -ENOMEM;
*this_location = this;
return 0;
}
/* IS_CENTRAL_LOG */
static pthread_key_t central_log_flag_key;
void
glusterfs_central_log_flag_destroy (void *ptr)
{
if (ptr)
FREE (ptr);
}
int
glusterfs_central_log_flag_init ()
{
int ret = 0;
ret = pthread_key_create (¢ral_log_flag_key,
glusterfs_central_log_flag_destroy);
if (ret != 0) {
return ret;
}
pthread_setspecific (central_log_flag_key, (void *) 0);
return ret;
}
void
glusterfs_central_log_flag_set ()
{
pthread_setspecific (central_log_flag_key, (void *) 1);
}
long
glusterfs_central_log_flag_get ()
{
long flag = 0;
flag = (long) pthread_getspecific (central_log_flag_key);
return flag;
}
void
glusterfs_central_log_flag_unset ()
{
pthread_setspecific (central_log_flag_key, (void *) 0);
}
int
glusterfs_globals_init ()
{
int ret = 0;
ret = glusterfs_ctx_init ();
if (ret)
goto out;
ret = glusterfs_this_init ();
if (ret)
goto out;
ret = glusterfs_central_log_flag_init ();
if (ret)
goto out;
out:
return ret;
}
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