Source file src/pkg/crypto/rand/eagain.go

     1	// Copyright 2014 The Go Authors. All rights reserved.
     2	// Use of this source code is governed by a BSD-style
     3	// license that can be found in the LICENSE file.
     4	
     5	// +build aix darwin dragonfly freebsd linux nacl netbsd openbsd solaris
     6	
     7	package rand
     8	
     9	import (
    10		"os"
    11		"syscall"
    12	)
    13	
    14	func init() {
    15		isEAGAIN = unixIsEAGAIN
    16	}
    17	
    18	// unixIsEAGAIN reports whether err is a syscall.EAGAIN wrapped in a PathError.
    19	// See golang.org/issue/9205
    20	func unixIsEAGAIN(err error) bool {
    21		if pe, ok := err.(*os.PathError); ok {
    22			if errno, ok := pe.Err.(syscall.Errno); ok && errno == syscall.EAGAIN {
    23				return true
    24			}
    25		}
    26		return false
    27	}
    28	

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