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submodule
ffmpeg
Commits
bb81ed47
Commit
bb81ed47
authored
Jul 17, 2016
by
Anton Khirnov
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Add a compat stdatomic.h implementation based on suncc atomics
Adapted from the code by Rémi Denis-Courmont from VLC
parent
c2755864
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stdatomic.h
compat/atomics/suncc/stdatomic.h
+186
-0
configure
configure
+2
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compat/atomics/suncc/stdatomic.h
0 → 100644
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bb81ed47
/*
* This file is part of Libav.
*
* Libav 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.
*
* Libav 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 Libav; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef LIBAV_COMPAT_ATOMICS_SUNCC_STDATOMIC_H
#define LIBAV_COMPAT_ATOMICS_SUNCC_STDATOMIC_H
#include <atomic.h>
#include <mbarrier.h>
#include <stddef.h>
#include <stdint.h>
#define ATOMIC_FLAG_INIT 0
#define ATOMIC_VAR_INIT(value) (value)
#define atomic_init(obj, value) \
do { \
*(obj) = (value); \
} while(0)
#define kill_dependency(y) ((void)0)
#define atomic_thread_fence(order) \
__machine_rw_barrier();
#define atomic_signal_fence(order) \
((void)0)
#define atomic_is_lock_free(obj) 0
typedef
intptr_t
atomic_flag
;
typedef
intptr_t
atomic_bool
;
typedef
intptr_t
atomic_char
;
typedef
intptr_t
atomic_schar
;
typedef
intptr_t
atomic_uchar
;
typedef
intptr_t
atomic_short
;
typedef
intptr_t
atomic_ushort
;
typedef
intptr_t
atomic_int
;
typedef
intptr_t
atomic_uint
;
typedef
intptr_t
atomic_long
;
typedef
intptr_t
atomic_ulong
;
typedef
intptr_t
atomic_llong
;
typedef
intptr_t
atomic_ullong
;
typedef
intptr_t
atomic_wchar_t
;
typedef
intptr_t
atomic_int_least8_t
;
typedef
intptr_t
atomic_uint_least8_t
;
typedef
intptr_t
atomic_int_least16_t
;
typedef
intptr_t
atomic_uint_least16_t
;
typedef
intptr_t
atomic_int_least32_t
;
typedef
intptr_t
atomic_uint_least32_t
;
typedef
intptr_t
atomic_int_least64_t
;
typedef
intptr_t
atomic_uint_least64_t
;
typedef
intptr_t
atomic_int_fast8_t
;
typedef
intptr_t
atomic_uint_fast8_t
;
typedef
intptr_t
atomic_int_fast16_t
;
typedef
intptr_t
atomic_uint_fast16_t
;
typedef
intptr_t
atomic_int_fast32_t
;
typedef
intptr_t
atomic_uint_fast32_t
;
typedef
intptr_t
atomic_int_fast64_t
;
typedef
intptr_t
atomic_uint_fast64_t
;
typedef
intptr_t
atomic_intptr_t
;
typedef
intptr_t
atomic_uintptr_t
;
typedef
intptr_t
atomic_size_t
;
typedef
intptr_t
atomic_ptrdiff_t
;
typedef
intptr_t
atomic_intmax_t
;
typedef
intptr_t
atomic_uintmax_t
;
static
inline
void
atomic_store
(
intptr_t
*
object
,
intptr_t
desired
)
{
*
object
=
desired
;
__machine_rw_barrier
();
}
#define atomic_store_explicit(object, desired, order) \
atomic_store(object, desired)
static
inline
intptr_t
atomic_load
(
intptr_t
*
object
)
{
__machine_rw_barrier
();
return
*
object
;
}
#define atomic_load_explicit(object, order) \
atomic_load(object)
#define atomic_exchange(object, desired) \
atomic_swap_ptr(object, desired)
#define atomic_exchange_explicit(object, desired, order) \
atomic_exchange(object, desired)
static
inline
int
atomic_compare_exchange_strong
(
intptr_t
*
object
,
intptr_t
*
expected
,
intptr_t
desired
)
{
intptr_t
old
=
*
expected
;
*
expected
=
atomic_cas_ptr
(
object
,
old
,
desired
);
return
*
expected
==
old
;
}
#define atomic_compare_exchange_strong_explicit(object, expected, desired, success, failure) \
atomic_compare_exchange_strong(object, expected, desired)
#define atomic_compare_exchange_weak(object, expected, desired) \
atomic_compare_exchange_strong(object, expected, desired)
#define atomic_compare_exchange_weak_explicit(object, expected, desired, success, failure) \
atomic_compare_exchange_weak(object, expected, desired)
static
inline
intptr_t
atomic_fetch_add
(
intptr_t
*
object
,
intptr_t
operand
)
{
return
atomic_add_ptr_nv
(
object
,
operand
)
-
operand
;
}
#define atomic_fetch_sub(object, operand) \
atomic_fetch_add(object, -(operand))
static
inline
intptr_t
atomic_fetch_or
(
intptr_t
*
object
,
intptr_t
operand
)
{
intptr_t
old
;
do
{
old
=
atomic_load
(
object
);
}
while
(
!
atomic_compare_exchange_strong
(
object
,
old
,
old
|
operand
));
return
old
;
}
static
inline
intptr_t
atomic_fetch_xor
(
intptr_t
*
object
,
intptr_t
operand
)
{
intptr_t
old
;
do
{
old
=
atomic_load
(
object
);
}
while
(
!
atomic_compare_exchange_strong
(
object
,
old
,
old
^
operand
));
return
old
;
}
static
inline
intptr_t
atomic_fetch_and
(
intptr_t
*
object
,
intptr_t
operand
)
{
intptr_t
old
;
do
{
old
=
atomic_load
(
object
);
}
while
(
!
atomic_compare_exchange_strong
(
object
,
old
,
old
&
operand
));
return
old
;
}
#define atomic_fetch_add_explicit(object, operand, order) \
atomic_fetch_add(object, operand)
#define atomic_fetch_sub_explicit(object, operand, order) \
atomic_fetch_sub(object, operand)
#define atomic_fetch_or_explicit(object, operand, order) \
atomic_fetch_or(object, operand)
#define atomic_fetch_xor_explicit(object, operand, order) \
atomic_fetch_sub(object, operand)
#define atomic_fetch_and_explicit(object, operand, order) \
atomic_fetch_and(object, operand)
#define atomic_flag_test_and_set(object) \
atomic_exchange(object, 1)
#define atomic_flag_test_and_set_explicit(object, order) \
atomic_flag_test_and_set(object)
#define atomic_flag_clear(object) \
atomic_store(object, 0)
#define atomic_flag_clear_explicit(object, order) \
atomic_flag_clear(object)
#endif
/* LIBAV_COMPAT_ATOMICS_SUNCC_STDATOMIC_H */
configure
View file @
bb81ed47
...
...
@@ -5078,6 +5078,8 @@ if disabled stdatomic_h; then
add_cppflags
'-I\$(SRC_PATH)/compat/atomics/gcc'
elif
enabled atomics_win32
;
then
add_cppflags
'-I\$(SRC_PATH)/compat/atomics/win32'
elif
enabled atomics_suncc
;
then
add_cppflags
'-I\$(SRC_PATH)/compat/atomics/suncc'
fi
fi
...
...
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