distribution/vendor/github.com/bugsnag/panicwrap/monitor.go
Olivier Gambier 77e69b9cf3 Move to vendor
Signed-off-by: Olivier Gambier <olivier@docker.com>
2016-03-22 10:45:49 -07:00

62 lines
1,004 B
Go

// +build !windows
package panicwrap
import (
"github.com/bugsnag/osext"
"os"
"os/exec"
)
func monitor(c *WrapConfig) (int, error) {
// If we're the child process, absorb panics.
if Wrapped(c) {
panicCh := make(chan string)
go trackPanic(os.Stdin, os.Stderr, c.DetectDuration, panicCh)
// Wait on the panic data
panicTxt := <-panicCh
if panicTxt != "" {
if !c.HidePanic {
os.Stderr.Write([]byte(panicTxt))
}
c.Handler(panicTxt)
}
os.Exit(0)
}
exePath, err := osext.Executable()
if err != nil {
return -1, err
}
cmd := exec.Command(exePath, os.Args[1:]...)
read, write, err := os.Pipe()
if err != nil {
return -1, err
}
cmd.Stdin = read
cmd.Stdout = os.Stdout
cmd.Stderr = os.Stderr
cmd.Env = append(os.Environ(), c.CookieKey+"="+c.CookieValue)
if err != nil {
return -1, err
}
err = cmd.Start()
if err != nil {
return -1, err
}
err = dup2(int(write.Fd()), int(os.Stderr.Fd()))
if err != nil {
return -1, err
}
return -1, nil
}