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Do not catch and rethrow exception from state handlers

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This commit is contained in:
Alexey Rybalchenko
2021-11-03 12:03:09 +01:00
parent ebcbe2dde6
commit 0eaea3c66f
5 changed files with 98 additions and 49 deletions
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20
fairmq/StateMachine.cxx
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@@ -7,6 +7,7 @@
********************************************************************************/
#include <fairmq/StateMachine.h>
#include <fairmq/tools/Exceptions.h>
#include <fairlogger/Logger.h>
@@ -204,6 +205,7 @@ struct Machine_ : public state_machine_def<Machine_>
}
if (fState == State::Error) {
LOG(trace) << "Device transitioned to error state";
throw StateMachine::ErrorStateException("Device transitioned to error state");
}
}
@@ -366,20 +368,18 @@ void StateMachine::ProcessWork()
{
auto fsm = static_pointer_cast<FairMQFSM>(fFsm);
try {
fsm->CallStateChangeCallbacks(State::Idle);
fsm->ProcessWork();
} catch(ErrorStateException& ese) {
LOG(trace) << "ErrorStateException caught in ProcessWork(), rethrowing";
throw;
} catch(...) {
LOG(debug) << "Exception caught in ProcessWork(), going to Error state and rethrowing";
fair::mq::tools::CallOnDestruction cod([&](){
LOG(debug) << "Exception caught in ProcessWork(), going to Error state";
{
lock_guard<mutex> lock(fsm->fStateMtx);
fsm->fState = State::Error;
fsm->CallStateChangeCallbacks(State::Error);
}
ChangeState(Transition::ErrorFound);
throw;
}
});
fsm->CallStateChangeCallbacks(State::Idle);
fsm->ProcessWork();
cod.disable();
}