core: move contents to mpvcore (1/2)

core is used in many unix systems for core dumps. For that reason some tools
work under the assumption that the file is indeed a core dump (for example
autoconf does this).

This commit just renames the files. The following one will change all the
includes to fix compilation. This is done this way because git has a easier
time tracing file changes if there is a pure rename commit.

1 files changed, 23 insertions, 0 deletions

diff --git a/mpvcore/mp_memory_barrier.h b/mpvcore/mp_memory_barrier.h
new file mode 100644
index 0000000000..e27825de8f
--- /dev/null
+++ b/mpvcore/mp_memory_barrier.h
@@ -0,0 +1,23 @@
+/*
+ * This file is part of mpv.
+ * Copyright (c) 2013 Stefano Pigozzi <stefano.pigozzi@gmail.com>
+ *
+ * mpv is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * mpv 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with mpv.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+// At this point both gcc and clang had __sync_synchronize support for some
+// time. We only support a full memory barrier.
+
+#define mp_memory_barrier()           __sync_synchronize()
+#define mp_atomic_add_and_fetch(a, b) __sync_add_and_fetch(a, b)