locker.c
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/* GNU mailutils - a suite of utilities for electronic mail
Copyright (C) 1999, 2000, 2001 Free Software Foundation, Inc.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Library Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.
This program 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 Library General Public License for more details.
You should have received a copy of the GNU Library General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include <stdlib.h>
#include <mailutils/error.h>
#include <mailutils/sys/locker.h>
int
locker_ref (locker_t locker)
{
if (locker == NULL || locker->vtable == NULL
|| locker->vtable->ref == NULL)
return MU_ERROR_NOT_SUPPORTED;
return locker->vtable->ref (locker);
}
void
locker_destroy (locker_t *plocker)
{
if (plocker && *plocker)
{
locker_t locker = *plocker;
if (locker->vtable && locker->vtable->destroy)
locker->vtable->destroy (plocker);
*plocker = NULL;
}
}
int
locker_lock (locker_t locker)
{
if (locker == NULL || locker->vtable == NULL
|| locker->vtable->lock == NULL)
return MU_ERROR_NOT_SUPPORTED;
return locker->vtable->lock (locker);
}
int
locker_touchlock (locker_t locker)
{
if (locker == NULL || locker->vtable == NULL
|| locker->vtable->lock == NULL)
return MU_ERROR_NOT_SUPPORTED;
return locker->vtable->lock (locker);
}
int
locker_unlock (locker_t locker)
{
if (locker == NULL || locker->vtable == NULL
|| locker->vtable->lock == NULL)
return MU_ERROR_NOT_SUPPORTED;
return locker->vtable->lock (locker);
}