dblocks.h

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/* dblocks.h */
/* $Id: dblocks.h,v 1.7 2007/08/30 07:18:23 ibadm Exp $ */
#ifndef __dblocks_h
#define __dblocks_h

#include <mix/ErrCodes.h>
#include <mix/locks.h>
#include <ldb/dbtc.h>


#define DB_LOCK_TRIES       3

#define DB_LOCK_MAX_DELAY   300000

#define DB_LOCK_UNKNOWN_ID  ((DbIndex)(-1))

#define DB_LOCK_EXCL_FNAME_EXT      ".exl"

#define DB_LOCK_SHARED_FNAME_EXT    ".lac"

#define DB_LOCK_READ_ONLY       "ro"

#define DB_LOCK_READ_WRITE      "rw"


typedef struct
{
  LockId    id;     
  char      type[3];    
  char      moment[MOMENT_LEN+1];
  char      appname[WE_NAME_LEN+1];
  char      owner[WE_NAME_LEN+1];
  char      workplace[WE_NAME_LEN+1];
  char      host[WE_NAME_LEN+1];
  pid_t     pid;

}   DbLockDescr;


#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */


ErrCode LockDbResource (LockId* plid, const char* project,
            const dbNameStruct* dbns, DbAccess dbac);

ErrCode LockDbResourceByName (LockId* plid, const char* project,
                  const char* dbname, DbAccess dbac);

ErrCode RelockDbResource (LockId lid, const char* project,
              const dbNameStruct* dbns, DbAccess new_dbac);

ErrCode RelockDbResourceByName (LockId lid, const char* project,
                const char* dbname, DbAccess new_dbac);

ErrCode CheckLockedDbResource (const char* project,
                   const dbNameStruct* dbns,
                   unsigned* ndescr,
                   DbLockDescr** ldescr);

ErrCode ReleaseLockOfDbResource (const char* project,
                 const dbNameStruct* dbns,
                 LockId lid);

ErrCode ReleaseDbResource (const char* project,
               const dbNameStruct* dbns);


#ifdef __cplusplus
};
#endif /* __cplusplus */

#endif /* dblocks.h */