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-rw-r--r--src/libdiskfs/disk.c39
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);
+}