Initial commit

Proof-of-concept implementation. Bugs will occur.

vendor/github.com/hanwen/go-fuse/v2/fuse/server_unix.go

@@ -0,0 +1,33 @@
+//go:build !linux
+
+package fuse
+
+import (
+	"golang.org/x/sys/unix"
+)
+
+// OSX and FreeBSD has races when multiple routines read
+// from the FUSE device: on unmount, sometime some reads
+// do not error-out, meaning that unmount will hang.
+const useSingleReader = true
+
+func (ms *Server) write(req *request) Status {
+	if req.outPayloadSize() == 0 {
+		err := handleEINTR(func() error {
+			_, err := unix.Write(ms.mountFd, req.outputBuf)
+			return err
+		})
+		return ToStatus(err)
+	}
+
+	if req.fdData != nil {
+		req.outPayload, req.status = req.fdData.Bytes(req.outPayload)
+		req.serializeHeader(len(req.outPayload))
+	}
+
+	_, err := writev(int(ms.mountFd), [][]byte{req.outputBuf, req.outPayload})
+	if req.readResult != nil {
+		req.readResult.Done()
+	}
+	return ToStatus(err)
+}