v
Зеркало из https://github.com/vlang/v
1// Copyright (c) 2019-2024 Alexander Medvednikov. All rights reserved.
2// Use of this source code is governed by an MIT license
3// that can be found in the LICENSE file.
4
5module rand
6
7#include <sys/random.h>
8
9fn C.getentropy(buf voidptr, buflen usize) int
10
11// read returns an array of `bytes_needed` random bytes read from the OS.
12pub fn read(bytes_needed int) ![]u8 {
13mut buffer := []u8{len: bytes_needed}
14status := C.getentropy(buffer.data, bytes_needed)
15if status != 0 {
16return &ReadError{}
17}
18return buffer
19}
20