// Copyright 2011 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 unix || (js && wasm)

package time

import (
	
	
)

// for testing: whatever interrupts a sleep
func interrupt() {
	syscall.Kill(syscall.Getpid(), syscall.SIGCHLD)
}

func open( string) (uintptr, error) {
	,  := syscall.Open(, syscall.O_RDONLY, 0)
	if  != nil {
		return 0, 
	}
	return uintptr(), nil
}

func read( uintptr,  []byte) (int, error) {
	return syscall.Read(int(), )
}

func closefd( uintptr) {
	syscall.Close(int())
}

func preadn( uintptr,  []byte,  int) error {
	 := seekStart
	if  < 0 {
		 = seekEnd
	}
	if ,  := syscall.Seek(int(), int64(), );  != nil {
		return 
	}
	for len() > 0 {
		,  := syscall.Read(int(), )
		if  <= 0 {
			if  == nil {
				return errors.New("short read")
			}
			return 
		}
		 = [:]
	}
	return nil
}