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syscall: use error

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- syscall (not os) now defines the Errno type.
- the low-level assembly functions Syscall, Syscall6, and so on
  return Errno, not uintptr
- syscall wrappers all return error, not uintptr.

R=golang-dev, mikioh.mikioh, r, alex.brainman
CC=golang-dev
https://golang.org/cl/5372080
This commit is contained in:
Russ Cox 2011-11-13 22:44:52 -05:00
parent b126902e84
commit c017a8299f
102 changed files with 7429 additions and 5975 deletions
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6
src/pkg/os/exec_unix.go
View file

@ -38,7 +38,7 @@ func (p *Process) Wait(options int) (w *Waitmsg, err error) {
options ^= WRUSAGE
}
pid1, e := syscall.Wait4(p.Pid, &status, options, rusage)
if e != 0 {
if e != nil {
return nil, NewSyscallError("wait", e)
}
// With WNOHANG pid is 0 if child has not exited.
@ -57,8 +57,8 @@ func (p *Process) Signal(sig Signal) error {
if p.done {
return errors.New("os: process already finished")
}
if e := syscall.Kill(p.Pid, int(sig.(UnixSignal))); e != 0 {
return Errno(e)
if e := syscall.Kill(p.Pid, int(sig.(UnixSignal))); e != nil {
return e
}
return nil
}