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authorRonald S. Bultje <rsbultje@gmail.com>2012-12-02 14:34:50 -0800
committerAnton Khirnov <anton@khirnov.net>2013-03-08 07:32:36 +0100
commit65f1d45dcc71186ede72fff950996099d23359bd (patch)
tree6abb05fb0478c14c82dfc60262e05d50acda5287 /configure
parenteae0879d961b78717dd2a0899809ad22819ae9e3 (diff)
downloadffmpeg-65f1d45dcc71186ede72fff950996099d23359bd.tar.gz
lavu: add support for atomic operations.
These could be used for reference counting, or for keeping track of decoding progress in references in multithreaded decoders. Support is provided by gcc/msvc/suncc intrinsics, with a fallback using pthread mutexes. Signed-off-by: Anton Khirnov <anton@khirnov.net>
Diffstat (limited to 'configure')
-rwxr-xr-xconfigure6
1 files changed, 6 insertions, 0 deletions
diff --git a/configure b/configure
index d9708e8227..a4b12c6b2d 100755
--- a/configure
+++ b/configure
@@ -1285,9 +1285,11 @@ HAVE_LIST="
loongson
machine_ioctl_bt848_h
machine_ioctl_meteor_h
+ machine_rw_barrier
malloc_h
MapViewOfFile
memalign
+ MemoryBarrier
mkstemp
mm_empty
mmap
@@ -1322,6 +1324,7 @@ HAVE_LIST="
struct_v4l2_frmivalenum_discrete
symver_asm_label
symver_gnu_asm
+ sync_synchronize
sysconf
sysctl
sys_mman_h
@@ -3453,6 +3456,9 @@ check_func strerror_r
check_func strptime
check_func strtok_r
check_func sched_getaffinity
+check_builtin sync_synchronize "" "__sync_synchronize()"
+check_builtin machine_rw_barrier mbarrier.h "__machine_rw_barrier()"
+check_builtin MemoryBarrier windows.h "MemoryBarrier()"
check_func sysconf
check_func sysctl
check_func usleep