shithub: mc

ref: 63405aa8ca5abcca5cf1b1abb4c0b3648aa5bfc4
dir: /lib/std/blat.myr/

use "syswrap"
use "result"

pkg std =
	const blat : (path : byte[:], buf : byte[:], perm : int64 -> bool)
	const fblat : (f : fd, buf : byte[:] -> bool)
;;

const blat = {path, buf, perm
	match openmode(path, Ocreat|Owronly, perm)
	| `Ok fd:	-> fblat(fd, buf)
	| `Fail e:	-> false
	;;
}


const fblat = {fd, buf
	var count

	count = 0
	while true
		match write(fd, buf[count:])
		| `Fail e:	-> false
		| `Ok n:
			if n == 0
				break
			;;
			count += n
		;;
	;;
	-> count == buf.len
}