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crypto/rand: Added read buffer to speed up requests for small amounts of bytes.

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R=agl1, rsc
CC=golang-dev
https://golang.org/cl/4170056
This commit is contained in:
Albert Strasheim 2011-02-17 15:14:41 -05:00 • committed by Adam Langley
parent 00d8d0052a
commit 712888910b
1 changed files with 3 additions and 2 deletions
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5
src/pkg/crypto/rand/rand_unix.go
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@ -8,6 +8,7 @@
package rand package rand
import ( import (
"bufio"
"crypto/aes" "crypto/aes"
"io" "io"
"os" "os"
@ -23,7 +24,7 @@ func init() { Reader = &devReader{name: "/dev/urandom"} }
// A devReader satisfies reads by reading the file named name. // A devReader satisfies reads by reading the file named name.
type devReader struct { type devReader struct {
name string name string
f *os.File f io.Reader
mu sync.Mutex mu sync.Mutex
} }
@ -35,7 +36,7 @@ func (r *devReader) Read(b []byte) (n int, err os.Error) {
if f == nil { if f == nil {
return 0, err return 0, err
} }
r.f = f r.f = bufio.NewReader(f)
} }
return r.f.Read(b) return r.f.Read(b)
} }