func NewSsn(execOutFile string, onErr chan error) *Ssn {
var tail *cmn.CmdWrapper = nil
if len(execOutFile) > 0 {
tail = cmn.NewCmdWrapper(exec.Command("tail", "-f", execOutFile))
}
return &Ssn{
499,
false,
false,
&sync.Mutex{},
execOutFile,
cmn.NewCmdWrapper(exec.Command("bash")),
tail,
// make([]string, 0, 11),
// make([][]*Record, 0),
onErr,
make(chan *Msg),
make(chan string),
make(chan []string),
}
}
func (ssn *nvlvSsn) Run() error {
var err error
ssn.shMsgBody = &clientBody{
"sh",
make(map[string]interface{}),
}
ssn.exeMsgBody = &clientBody{
"exe",
make(map[string]interface{}),
}
ssn.gdbMsgBody = &clientBody{
"gdb",
make(map[string]interface{}),
}
ssn.cmdMsgBody = &clientBody{
"cmd",
make(map[string]interface{}),
}
gdbErrChan := make(chan error)
ssn.gdbErr = gdbErrChan
ssn.gdbSsn = gdb.NewSsn(ssn.gdbExecOut, gdbErrChan)
gdbInferiorOut := ssn.gdbSsn.InferiorOutput()
gdbOutput := ssn.gdbSsn.GdbOutput()
ssn.shCmd = cmn.NewCmdWrapper(exec.Command("bash"))
if err = ssn.shCmd.Start(); err != nil {
log.Println("Err: Unable to start shell command for nvlv session: ", err)
return err
}
ssn.msgFromClient = make(chan *clientMsg)
go recvJsonLoop(ssn.ws, ssn.msgFromClient)
for {
select {
case m := <-ssn.shCmd.OutChan():
if isReadErr(m.Err, "sh out stream") {
err = m.Err
goto endConn
}
ssn.shMsgBody.sendMsg(ssn.ws, m.Msg)
case m := <-ssn.shCmd.ErrChan():
if isReadErr(m.Err, "sh err stream") {
err = m.Err
goto endConn
}
ssn.shMsgBody.sendErr(ssn.ws, m.Msg)
case err = <-gdbErrChan:
log.Println("gbd err: ", err)
ssn.gdbMsgBody.sendErr(ssn.ws, err.Error())
goto endConn
case s := <-gdbInferiorOut:
ssn.exeMsgBody.sendMsg(ssn.ws, s)
case gdbMsg := <-gdbOutput:
ssn.lastGdbRecs = gdbMsg.Records
ssn.gdbMsgBody.sendData(ssn.ws, gdbMsg.Records, "raw", gdbMsg.Raw)
case m := <-ssn.msgFromClient:
if isReadErr(m.err, "client") {
err = m.err
goto endConn
}
log.Println("msg from client:", m.data)
err = handleMsg(ssn, m)
}
}
endConn:
log.Println("Killing cmds")
if ssn.shCmd.IsStarted() && !ssn.shCmd.IsKilled() {
ssn.shCmd.InChan() <- "exit"
ssn.shCmd.KillRelease()
}
ssn.gdbSsn.Kill()
return err
}