int changeState(cwpi_Scope s, const char *new_state) {
MachineInstance *scope = static_cast<MachineInstance*>(s);
if (!scope) {
MessageLog::instance()->add("changeState was passed a null instance from a plugin");
return 0;
}
SetStateActionTemplate ssat("SELF", new_state );
if (scope->isActive())
scope->enqueueAction(ssat.factory(scope)); // execute this state change once all other actions are complete
else
scope->setState(new_state);
return 1;
}
Action::Status SyncRemoteStatesAction::execute()
{
Channel *chn = dynamic_cast<Channel*>(owner);
if (internals->process_state == SyncRemoteStatesActionInternals::ps_init) {
owner->start(this);
status = Running;
#if 0
if (!internals->sock){
internals->sock = new zmq::socket_t(*MessagingInterface::getContext(), ZMQ_PAIR);
internals->sock->bind("inproc://syncstates");
chn->addSocket(10, "inproc://syncstates");
}
#endif
//assert(chn);
//assert(chn == internals->chn);
internals->process_state = SyncRemoteStatesActionInternals::ps_sending_messages;
if (chn->syncRemoteStates(internals->messages)) {
internals->iter = new std::list<char*>::iterator(internals->messages.begin());
if (*internals->iter != internals->messages.end())
internals->message_state = SyncRemoteStatesActionInternals::e_sending;
else
internals->message_state = SyncRemoteStatesActionInternals::e_done;
}
else{
status = Failed;
error_str = "Failed to sync";
owner->stop(this);
return status;
}
}
if (internals->process_state == SyncRemoteStatesActionInternals::ps_sending_messages)
{
if (*internals->iter == internals->messages.end()) {
internals->message_state = SyncRemoteStatesActionInternals::e_done;
}
if (internals->message_state == SyncRemoteStatesActionInternals::e_sending) {
char *current_message = *(*internals->iter);
internals->header.needReply(false);
safeSend(*internals->sock, current_message, strlen(current_message), internals->header);
free( current_message );
*internals->iter = internals->messages.erase(*internals->iter);
internals->message_state = SyncRemoteStatesActionInternals::e_receiving;
// skip receiving temporarily
internals->message_state = SyncRemoteStatesActionInternals::e_done;
}
else if (internals->message_state == SyncRemoteStatesActionInternals::e_receiving) {
char *buf; size_t len;
if (safeRecv(*internals->sock, &buf, &len, false, 0, internals->header)) {
//NB_MSG << "got reply: " << buf << "\n";
internals->message_state = SyncRemoteStatesActionInternals::e_done;
delete[] buf;
}
else return Running;
}
if (internals->message_state == SyncRemoteStatesActionInternals::e_done) {
if (*internals->iter != internals->messages.end()) {
internals->message_state = SyncRemoteStatesActionInternals::e_sending;
}
else {
if (internals->iter) {delete internals->iter; internals->iter =0; }
}
if (!internals->iter) { // finished sending messages
if (internals->process_state == SyncRemoteStatesActionInternals::ps_sending_messages) {
//safeSend(*cmd_client, "done", 4);
std::string ack;
//MessageHeader mh(ChannelInternals::SOCK_CTRL, ChannelInternals::SOCK_CTRL, false);
//sendMessage("done", *cmd_client, ack, mh);
internals->header.dest = MessageHeader::SOCK_CTRL;
internals->header.dest = MessageHeader::SOCK_CTRL;
internals->header.needReply(true);
safeSend(*internals->sock, "done", 4, internals->header);
internals->process_state = SyncRemoteStatesActionInternals::ps_waiting_ack;
}
}
}
}
else if (internals->process_state == SyncRemoteStatesActionInternals::ps_waiting_ack) {
char *ack; size_t len;
if (safeRecv(*internals->sock, &ack, &len, false, 0, internals->header)) {
DBG_CHANNELS << "channel " << chn->name << " got " << ack << " from server\n";
status = Complete;
result_str = (const char *)ack; // force a new allocation
delete[] ack;
owner->stop(this);
// execute a state change once all other actions are
if (chn->isClient()) {
SetStateActionTemplate ssat(CStringHolder("SELF"), "ACTIVE" );
SetStateAction *ssa = (SetStateAction*)ssat.factory(chn);
chn->enqueueAction(ssa);
}
else {
SetStateActionTemplate ssat(CStringHolder("SELF"), "DOWNLOADING" );
chn->enqueueAction(ssat.factory(chn));
}
return status;
}
}
return status;
#if 0
std::stringstream ss;
ss << owner->getName() << " failed to find machine " << target.get() << " for SetState action" << std::flush;
std::string str = ss.str();
error_str = strdup(str.c_str());
status = Failed;
owner->stop(this);
return status;
#endif
}
