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Source file src/time/sys_windows.go

Documentation: time

  // 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.
  
  package time
  
  import (
  	"errors"
  	"syscall"
  )
  
  // for testing: whatever interrupts a sleep
  func interrupt() {
  }
  
  func open(name string) (uintptr, error) {
  	fd, err := syscall.Open(name, syscall.O_RDONLY, 0)
  	if err != nil {
  		return 0, err
  	}
  	return uintptr(fd), nil
  }
  
  func read(fd uintptr, buf []byte) (int, error) {
  	return syscall.Read(syscall.Handle(fd), buf)
  }
  
  func closefd(fd uintptr) {
  	syscall.Close(syscall.Handle(fd))
  }
  
  func preadn(fd uintptr, buf []byte, off int) error {
  	whence := seekStart
  	if off < 0 {
  		whence = seekEnd
  	}
  	if _, err := syscall.Seek(syscall.Handle(fd), int64(off), whence); err != nil {
  		return err
  	}
  	for len(buf) > 0 {
  		m, err := syscall.Read(syscall.Handle(fd), buf)
  		if m <= 0 {
  			if err == nil {
  				return errors.New("short read")
  			}
  			return err
  		}
  		buf = buf[m:]
  	}
  	return nil
  }
  

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