libqb/lib/atomic_gcc.c
Angus Salkeld 98493d9ae8 Change Lindent options to break the procedure type.
so change:
int foo(void)

to

int
foo(void)

Signed-off-by: Angus Salkeld <asalkeld@redhat.com>
2011-06-22 14:19:14 +10:00

88 lines
2.0 KiB
C

/*
* Copyright (C) 2009 Hiroyuki Ikezoe
*
* This file is part of libqb.
*
* libqb 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.
*
* libqb 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 libqb. If not, see <http://www.gnu.org/licenses/>.
*/
/*
* Copied from the glib code base (glib/gatomic-gcc.c) and namespaced
* for libqb.
*/
#include "config.h"
#include <qb/qbatomic.h>
void
qb_atomic_init(void)
{
}
int32_t
qb_atomic_int_exchange_and_add(volatile int32_t QB_GNUC_MAY_ALIAS * atomic,
int32_t val)
{
return __sync_fetch_and_add(atomic, val);
}
void
qb_atomic_int_add(volatile int32_t QB_GNUC_MAY_ALIAS * atomic, int32_t val)
{
__sync_fetch_and_add(atomic, val);
}
int32_t
qb_atomic_int_compare_and_exchange(volatile int32_t QB_GNUC_MAY_ALIAS * atomic,
int32_t oldval, int32_t newval)
{
return __sync_bool_compare_and_swap(atomic, oldval, newval);
}
int32_t
qb_atomic_pointer_compare_and_exchange(volatile void *QB_GNUC_MAY_ALIAS *
atomic, void *oldval, void *newval)
{
return __sync_bool_compare_and_swap(atomic, oldval, newval);
}
int32_t
(qb_atomic_int_get) (volatile int32_t QB_GNUC_MAY_ALIAS * atomic)
{
__sync_synchronize();
return *atomic;
}
void
(qb_atomic_int_set) (volatile int32_t QB_GNUC_MAY_ALIAS * atomic,
int32_t newval)
{
*atomic = newval;
__sync_synchronize();
}
void *
(qb_atomic_pointer_get) (volatile void *QB_GNUC_MAY_ALIAS * atomic)
{
__sync_synchronize();
return (void *)*atomic;
}
void
(qb_atomic_pointer_set) (volatile void *QB_GNUC_MAY_ALIAS * atomic,
void *newval)
{
*atomic = newval;
__sync_synchronize();
}