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/*
* Copyright (C) 2012-2013 Red Hat, Inc. All rights reserved.
*
* This 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.
*
* This 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 this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*
* Author: Robin Hack <rhack@redhat.com>
*/
#ifndef _LOCK_H
#define _LOCK_H
#include <pthread.h>
#include <glib.h>
/* Global */
#define USERNAME_LEN_MAX 33
typedef struct lock {
char id [USERNAME_LEN_MAX];
pthread_mutex_t mutex;
unsigned int instances;
} lock_t;
typedef struct lock_pool {
GHashTable *hash_table;
pthread_mutex_t csec;
} lock_pool_t;
typedef struct lock_pools {
lock_pool_t user_pool;
lock_pool_t group_pool;
int initialized;
pthread_mutex_t csec;
} lock_pools_t;
int init_lock_pools (void) __attribute__((warn_unused_result));
void destroy_lock_pools (void);
int get_user_lock (const char *const username) __attribute__((nonnull));
int get_group_lock (const char *const groupname) __attribute__((nonnull));
int release_user_lock (const char *const username) __attribute__((nonnull));
int release_group_lock (const char *const username) __attribute__((nonnull));
#endif /* _LOCK_H */
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