71 lines
2.2 KiB
C++
71 lines
2.2 KiB
C++
/*
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*/
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#include <ListUtils.h>
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#include <StandardTypes.h>
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#include "StartLoopbackTESClient.h"
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#include "../../MessageBroker/MessageBroker.h"
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namespace distributed3 {
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ListExpr StartLoopbackTESClient::typeMapping(ListExpr args) {
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if (!nl->HasLength(args, 1)) {
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return listutils::typeError("You must provide 1 argument.");
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}
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const ListExpr workerNr = nl->First(args);
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if (!CcInt::checkType(workerNr)) {
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return listutils::typeError(
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"The first argument must be an int");
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}
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return nl->SymbolAtom(CcBool::BasicType());
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}
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int StartLoopbackTESClient::valueMapping(Word *args, Word &result, int,
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Word &, Supplier s) {
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result = qp->ResultStorage(s);
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CcInt *workernrWrapper = (CcInt *) args[0].addr;
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PRECONDITION(workernrWrapper->IsDefined(), "workernr is undefined")
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int workernr = workernrWrapper->GetIntval();
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PRECONDITION(workernr >= 0, "workernr must not be negative");
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bool loopbackProxyStarted =
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MessageBroker::get().startLoopbackProxy(workernr);
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if (!loopbackProxyStarted) {
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BOOST_LOG_TRIVIAL(error) << "Couldn't start loopback proxy";
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((CcBool *) result.addr)->Set(true, false);
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return 0;
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}
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((CcBool *) result.addr)->Set(true, true);
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return 0;
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}
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OperatorSpec StartLoopbackTESClient::operatorSpec(
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"int -> bool",
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"# (_)",
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"This operator is used analogous to 'startMessageClient(...)'."
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"It also starts a message client, although the proxy doesn't send messages "
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"to other hosts. It queues the messages directly into the input queue of the "
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"local message broker.",
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"query startLoopbackMessageClient(1);",
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"This operator belongs to the TES API."
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"It may require knowledge of the system to effectively understand and "
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"use all the operators that are provided."
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"CAUTION: This operator is used internally by the TES system. "
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"Hence you must not use it in queries yourself."
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"Doing so may lead to inconsistent states of the TES system."
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);
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Operator StartLoopbackTESClient::startLoopbackTESClient(
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"startLoopbackTESClient",
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StartLoopbackTESClient::operatorSpec.getStr(),
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StartLoopbackTESClient::valueMapping,
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Operator::SimpleSelect,
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StartLoopbackTESClient::typeMapping
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);
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}
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