Import backup from 2004-04-03

kernel/block/loop.c

@@ -0,0 +1,22 @@
+// loop.c
+// Author: Josh Holtrop
+// Date: 03/16/04
+// Provides a loop-back device for mounting files on existing volumes as new volumes
+
+#include "hos_defines.h"
+#include "loop.h"
+#include "fs/vfs.h"
+
+int loop_readSector(LoopDevice *ld, dword sector, byte *buffer)
+{
+	return vfs_readFileBlock(ld->vol, ld->filePath, sector * LOOP_SECTOR_SIZE, buffer, LOOP_SECTOR_SIZE);
+}
+
+
+int loop_writeSector(LoopDevice *ld, dword sector, byte *buffer)
+{
+	return vfs_writeFileBlock(ld->vol, ld->filePath, sector * LOOP_SECTOR_SIZE, buffer, LOOP_SECTOR_SIZE);
+}
+
+
+

kernel/block/loop.h

@@ -0,0 +1,22 @@
+// loop.h
+// Author: Josh Holtrop
+// Date: 03/16/04
+// Provides a loop-back device for mounting files on existing volumes as new volumes
+
+#ifndef __HOS_LOOP__
+#define __HOS_LOOP__ __HOS_LOOP__
+
+#include "hos_includes.h"
+
+typedef struct
+{
+	Volume *vol;
+	char filePath[256];
+} LoopDevice;
+
+int loop_readSector(LoopDevice *ld, dword sector, byte *buffer);
+int loop_writeSector(LoopDevice *ld, dword sector, byte *buffer);
+
+#endif
+
+