Kernel+LibC: Implement fsync

1 files changed, 19 insertions, 0 deletions

diff --git a/Kernel/Syscalls/fsync.cpp b/Kernel/Syscalls/fsync.cpp
new file mode 100644
index 0000000000..3e1445de77
--- /dev/null
+++ b/Kernel/Syscalls/fsync.cpp
@@ -0,0 +1,19 @@
+/*
+ * Copyright (c) 2021, the SerenityOS developers.
+ *
+ * SPDX-License-Identifier: BSD-2-Clause
+ */
+
+#include <Kernel/Process.h>
+
+namespace Kernel {
+
+KResultOr<FlatPtr> Process::sys$fsync(int fd)
+{
+    VERIFY_PROCESS_BIG_LOCK_ACQUIRED(this);
+    REQUIRE_PROMISE(stdio);
+    auto description = TRY(fds().open_file_description(fd));
+    return description->sync();
+}
+
+}