File system access library.

1 files changed, 39 insertions, 0 deletions

diff --git a/src/libdiskfs/disk.c b/src/libdiskfs/disk.c
new file mode 100644
index 00000000..001a19de
--- /dev/null
+++ b/src/libdiskfs/disk.c
@@ -0,0 +1,39 @@
+#include <u.h>
+#include <libc.h>
+#include <bio.h>
+#include <diskfs.h>
+
+Block*
+diskread(Disk *disk, u32int count, u64int offset)
+{
+	if(disk == nil)
+		return nil;
+
+	if(!disk->_read){
+		werrstr("no disk read dispatch function");
+		return nil;
+	}
+	return (*disk->_read)(disk, count, offset);
+}
+
+int
+disksync(Disk *disk)
+{
+	if(disk == nil)
+		return 0;
+	if(!disk->_sync)
+		return 0;
+	return (*disk->_sync)(disk);
+}
+
+void
+diskclose(Disk *disk)
+{
+	if(disk == nil)
+		return;
+	if(!disk->_close){
+		fprint(2, "no diskClose\n");
+		abort();
+	}
+	(*disk->_close)(disk);
+}