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 * Copyright (C) 2004,2005  Heinz Mauelshagen, Red Hat GmbH.
 *                          All rights reserved.
 * See file LICENSE at the top of this source tree for license information.

#ifndef     _LOCKING_H
#define     _LOCKING_H

/* I want to be prepared for finer grained locking... */
struct resource {
      char *name;

/* Locking abstraction. */
struct lib_context;
struct locking {
      const char *name;
      int (*lock)(struct lib_context *lc, struct resource *res);
      void (*unlock)(struct lib_context *lc, struct resource *res);
      void *private; /* Private context. */

extern int init_locking(struct lib_context *lc);
extern int lock_resource(struct lib_context *lc, struct resource *res);
extern void unlock_resource(struct lib_context *lc, struct resource *res);


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