fix(file): add Blizzard::File::Flush

bc/File.hpp

@@ -11,6 +11,7 @@
 #include "bc/file/CreateDirectory.hpp"
 #include "bc/file/Delete.hpp"
 #include "bc/file/Exists.hpp"
+#include "bc/file/Flush.hpp"
 #include "bc/file/GetFileInfo.hpp"
 #include "bc/file/GetPos.hpp"
 #include "bc/file/GetWorkingDirectory.hpp"

bc/file/Flush.cpp

@@ -0,0 +1,18 @@
+#include "bc/file/Flush.cpp"
+#include "bc/system/file/Stacked.hpp"
+
+namespace Blizzard {
+namespace File {
+
+// flush
+bool Flush(StreamRecord* file) {
+    System_File::Stacked::FileParms parms;
+    parms.op   = offsetof(Filesystem, flush);
+    parms.file = file;
+
+    auto fs = System_File::Stacked::s_manager;
+    return fs ? fs->flush(fs, &parms) : false;
+}
+
+} // namespace File
+} // namespace Blizzard

bc/file/Flush.hpp

@@ -0,0 +1,15 @@
+#ifndef BC_FILE_FLUSH_HPP
+#define BC_FILE_FLUSH_HPP
+
+#include "bc/file/Types.hpp"
+
+namespace Blizzard {
+namespace File {
+
+// flush
+bool Flush(StreamRecord* file);
+
+} // namespace File
+} // namespace Blizzard
+
+#endif