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|
use "alloc.use"
use "die.use"
use "result.use"
use "extremum.use"
use "syswrap.use"
use "types.use"
pkg std =
const slurp : (path : byte[:] -> result(byte[:], byte[:]))
const fslurp : (path : fd -> result(byte[:], byte[:]))
;;
const Bufstart = 4096
const slurp = {path
var fd
fd = open(path, Ordonly)
if fd < 0
-> `Fail "Could not open file"
;;
-> fslurp(fd)
}
const fslurp = {fd
var len, bufsz
var buf
var n
len = 0
bufsz = Bufstart
buf = slalloc(bufsz)
while true
n = read(fd, buf[len:])
if n <= 0
goto done
;;
len += n
bufsz *= 2
buf = slgrow(buf, bufsz)
;;
:done
-> `Ok buf[:len]
}
|
