Snap for 9744603 from e7adbac231cd80541ba9e66c971e2a425fd4f443 to udc-release

Change-Id: I16803a29e5d8a0a8400e81c472425963d6e2b0aa

1 files changed, 13 insertions, 0 deletions

diff --git a/libhwjpeg/FileLock.cpp b/libhwjpeg/FileLock.cpp
new file mode 100644
index 0000000..6e8ecbd
--- /dev/null
+++ b/libhwjpeg/FileLock.cpp
@@ -0,0 +1,13 @@
+#include "FileLock.h"
+
+#include <bits/lockf.h>
+
+FileLock::FileLock(int fd) : fd_(fd) {}
+
+int FileLock::lock() {
+    return lockf(fd_, F_LOCK, 0);
+}
+
+int FileLock::unlock() {
+    return lockf(fd_, F_ULOCK, 0);
+}