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os: make the system info a value not a pointer on unix

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fix a couple of other minor related details.

R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/5690071
This commit is contained in:
Rob Pike 2012-02-23 07:51:49 +11:00
parent bb4a490928
commit 880cda557a
4 changed files with 13 additions and 13 deletions
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14
src/pkg/os/exec_plan9.go
View File

@ -66,7 +66,7 @@ func (p *Process) Kill() error {
}
// Wait waits for the Process to exit or stop, and then returns a
// Waitmsg describing its status and an error, if any.
// ProcessState describing its status and an error, if any.
func (p *Process) Wait() (ps *ProcessState, err error) {
var waitmsg syscall.Waitmsg
@ -89,7 +89,7 @@ func (p *Process) Wait() (ps *ProcessState, err error) {
ps = &ProcessState{
pid: waitmsg.Pid,
status: waitmsg,
status: &waitmsg,
}
return ps, nil
}
@ -110,8 +110,8 @@ func findProcess(pid int) (p *Process, err error) {
// ProcessState stores information about process as reported by Wait.
type ProcessState struct {
pid int // The process's id.
status syscall.Waitmsg // System-dependent status info.
pid int // The process's id.
status *syscall.Waitmsg // System-dependent status info.
}
// Pid returns the process id of the exited process.
@ -134,14 +134,14 @@ func (p *ProcessState) Success() bool {
// the process. Convert it to the appropriate underlying
// type, such as *syscall.Waitmsg on Plan 9, to access its contents.
func (p *ProcessState) Sys() interface{} {
return &p.status
return p.status
}
// SysUsage returns system-dependent resource usage information about
// the exited process. Convert it to the appropriate underlying
// type, such as *syscall.Waitmsg on Unix, to access its contents.
// type, such as *syscall.Waitmsg on Plan 9, to access its contents.
func (p *ProcessState) SysUsage() interface{} {
return &p.status
return p.status
}
// UserTime returns the user CPU time of the exited process and its children.

8
src/pkg/os/exec_posix.go
View File

@ -44,8 +44,8 @@ func (p *Process) Kill() error {
// ProcessState stores information about process as reported by Wait.
type ProcessState struct {
pid int // The process's id.
status *syscall.WaitStatus // System-dependent status info.
pid int // The process's id.
status syscall.WaitStatus // System-dependent status info.
rusage *syscall.Rusage
}
@ -67,7 +67,7 @@ func (p *ProcessState) Success() bool {
// Sys returns system-dependent exit information about
// the process. Convert it to the appropriate underlying
// type, such as *syscall.WaitStatus on Unix, to access its contents.
// type, such as syscall.WaitStatus on Unix, to access its contents.
func (p *ProcessState) Sys() interface{} {
return p.status
}
@ -110,7 +110,7 @@ func (p *ProcessState) String() string {
if p == nil {
return "<nil>"
}
status := p.Sys().(*syscall.WaitStatus)
status := p.Sys().(syscall.WaitStatus)
res := ""
switch {
case status.Exited():

2
src/pkg/os/exec_unix.go
View File

@ -30,7 +30,7 @@ func (p *Process) Wait() (ps *ProcessState, err error) {
}
ps = &ProcessState{
pid: pid1,
status: &status,
status: status,
rusage: &rusage,
}
return ps, nil

2
src/pkg/os/exec_windows.go
View File

@ -30,7 +30,7 @@ func (p *Process) Wait() (ps *ProcessState, err error) {
return nil, NewSyscallError("GetExitCodeProcess", e)
}
p.done = true
return &ProcessState{p.Pid, &syscall.WaitStatus{Status: s, ExitCode: ec}, new(syscall.Rusage)}, nil
return &ProcessState{p.Pid, syscall.WaitStatus{Status: s, ExitCode: ec}, new(syscall.Rusage)}, nil
}
// Signal sends a signal to the Process.