fuse_kernel_linux.go

package fuse

import "golang.org/x/sys/unix"

func openFlags(flags uint32) OpenFlags {
	// on amd64, the 32-bit O_LARGEFILE flag is always seen;
	// on i386, the flag probably depends on the app
	// requesting, but in any case should be utterly
	// uninteresting to us here; our kernel protocol messages
	// are not directly related to the client app's kernel
	// API/ABI
	flags &^= 0x8000

	return OpenFlags(flags)
}

const (
	FAllocateKeepSize  FAllocateFlags = unix.FALLOC_FL_KEEP_SIZE
	FAllocatePunchHole FAllocateFlags = unix.FALLOC_FL_PUNCH_HOLE

	// Only including constants supported by FUSE kernel implementation.
	//
	// FAllocateCollapseRange FAllocateFlags = unix.FALLOC_FL_COLLAPSE_RANGE
	// FAllocateInsertRange   FAllocateFlags = unix.FALLOC_FL_INSERT_RANGE
	// FAllocateNoHideStale   FAllocateFlags = unix.FALLOC_FL_NO_HIDE_STALE
	// FAllocateUnshareRange  FAllocateFlags = unix.FALLOC_FL_UNSHARE_RANGE
	// FAllocateZeroRange     FAllocateFlags = unix.FALLOC_FL_ZERO_RANGE
)

var fAllocateFlagsNames = []flagName{
	{uint32(FAllocatePunchHole), "FAllocatePunchHole"},
	{uint32(FAllocateKeepSize), "FAllocateKeepSize"},

	// Only including constants supported by FUSE kernel implementation.
	//
	// {uint32(FAllocateCollapseRange), "FAllocateCollapseRange"},
	// {uint32(FAllocateInsertRange), "FAllocateInsertRange"},
	// {uint32(FAllocateNoHideStale), "FAllocateNoHideStale"},
	// {uint32(FAllocateUnshareRange), "FAllocateUnshareRange"},
	// {uint32(FAllocateZeroRange), "FAllocateZeroRange"},
}