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package eows
import (
"fmt"
"os"
"syscall"
"time"
)
// DoneChan Channel used to propagate status+error on command exit
type DoneChan struct {
status int
err error
}
// pumpStdin is in charge of receive characters and send them to stdin
func (e *ExecOverWS) pumpStdin(inw *os.File) {
done := make(chan DoneChan, 1)
if e.InputEvent != "" && e.InputCB != nil {
err := (*e.SocketIO).On(e.InputEvent, func(stdin []byte) {
in, err := e.InputCB(e, stdin)
if err != nil {
e.logDebug("Error stdin: %s", err.Error())
inw.Close()
return
}
if _, err := inw.Write(in); err != nil {
e.logError("Error while writing to stdin: %s", err.Error())
}
})
if err != nil {
e.logError("Error stdin on event: %s", err.Error())
}
}
// Monitor process exit
go func() {
status := 0
sts, err := e.proc.Wait()
if !sts.Success() {
s := sts.Sys().(syscall.WaitStatus)
status = s.ExitStatus()
}
e.procExited = true
done <- DoneChan{status, err}
}()
// Wait cmd complete
select {
case dC := <-done:
e.ExitCB(e, dC.status, dC.err)
case <-time.After(time.Duration(e.CmdExecTimeout) * time.Second):
e.ExitCB(e, -999, fmt.Errorf("Exit Timeout for command ID %v", e.CmdID))
}
}
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