go rand_getentropy 源码
golang rand_getentropy 代码
文件路径：/src/crypto/rand/rand_getentropy.go
// Copyright 2016 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
//go:build (darwin && !ios) || openbsd
package rand
import "internal/syscall/unix"
func init() {
// getentropy(2) returns a maximum of 256 bytes per call
altGetRandom = batched(unix.GetEntropy, 256)
}
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