diff options
Diffstat (limited to 'pathfs_frontend/file_holes.go')
-rw-r--r-- | pathfs_frontend/file_holes.go | 29 |
1 files changed, 0 insertions, 29 deletions
diff --git a/pathfs_frontend/file_holes.go b/pathfs_frontend/file_holes.go deleted file mode 100644 index a147deb..0000000 --- a/pathfs_frontend/file_holes.go +++ /dev/null @@ -1,29 +0,0 @@ -package pathfs_frontend - -// Helper functions for sparse files (files with holes) - -import ( - "github.com/hanwen/go-fuse/fuse" - - "github.com/rfjakob/gocryptfs/internal/toggledlog" -) - -// Will a write to offset "off" create a file hole? -func (f *file) createsHole(plainSize uint64, off int64) bool { - nextBlock := f.contentEnc.PlainOffToBlockNo(plainSize) - targetBlock := f.contentEnc.PlainOffToBlockNo(uint64(off)) - if targetBlock > nextBlock { - return true - } - return false -} - -// Zero-pad the file of size plainSize to the next block boundary -func (f *file) zeroPad(plainSize uint64) fuse.Status { - lastBlockLen := plainSize % f.contentEnc.PlainBS() - missing := f.contentEnc.PlainBS() - lastBlockLen - pad := make([]byte, missing) - toggledlog.Debug.Printf("zeroPad: Writing %d bytes\n", missing) - _, status := f.doWrite(pad, int64(plainSize)) - return status -} |