bgould / go-littlefs Goto Github PK

Note: This is all done on a local machine and it works fine on the actual board, but would prefer to do local testing before uploading it to the board every time

Initial Error that caused the search. Tinyfs MemDevice (should be compatible with littlefs.New(device)

Tinyfs Device Values: {size: 16777216} {BlockSize: 256} {EraseSize: 4096}
2021/09/24 15:31:15 Panic: Offset: 0
Size: 760209211648
Block: 1
--- FAIL: Test_LFS (0.01s)
panic: runtime error: slice bounds out of range [::760209211648] with length 268435456 [recovered]
panic: runtime error: slice bounds out of range [::760209211648] with length 268435456

After alot of testing and discussion, I believe the issue to be related to some behavior of c int vs go int in the lfs callbacks
In go_lfs_callbacks.go
Changing this:
func go_lfs_block_device_read(ctx unsafe.Pointer, block uint32, offset uint32, buf unsafe.Pointer, size int) int {
To
func go_lfs_block_device_read(ctx unsafe.Pointer, block uint32, offset uint32, buf unsafe.Pointer, size uint32) uint32 {

Defining the expected behavior like this seems to fix the issue. The issue also exists with go_lfs_block_device_prog.

If all seems fine I can submit a PR or let you make the change. Any feedback welcome