void
produce_simple_values()
{
using TestFactory = factory::MultiFact<string, theID>;
TestFactory theFact;
// the first "production line" is wired to a free function
theFact.defineProduction (ONE, buildOne);
// second "production line" uses a explicit partial closure
theFact.defineProduction (TWO, bind (buildSome<theID>, TWO));
// for the third "production line" we set up a function object
auto memberFunction = bind (&MultiFact_test::callMe, this, "lalü");
theFact.defineProduction (THR, memberFunction);
// and the fourth "production line" uses a lambda, closed with a local reference
string backdoor("backdoor");
theFact.defineProduction (FOU, [&] {
return backdoor;
});
CHECK (!isnil (theFact));
CHECK (theFact(ONE) == "1");
CHECK (theFact(TWO) == "2");
CHECK (theFact(THR) == "lalü");
CHECK (invocations_ == 1);
CHECK (theFact(FOU) == "backdoor");
backdoor = "I am " + backdoor.substr(0,4);
CHECK (theFact(FOU) == "I am back");
TestFactory anotherFact;
CHECK (isnil (anotherFact));
VERIFY_ERROR (INVALID, anotherFact(ONE) );
anotherFact.defineProduction (ONE, memberFunction);
CHECK (anotherFact(ONE) == "lalü");
CHECK (invocations_ == 2);
CHECK (theFact(THR) == "lalü");
CHECK (invocations_ == 3);
CHECK ( theFact.contains (FOU));
CHECK (!anotherFact.contains (FOU));
anotherFact = theFact;
CHECK (anotherFact.contains (FOU));
CHECK (!isSameObject(theFact, anotherFact));
CHECK (anotherFact(ONE) == "1");
CHECK (anotherFact(TWO) == "2");
CHECK (anotherFact(THR) == "lalü");
CHECK (anotherFact(FOU) == "I am back");
CHECK (invocations_ == 4);
}
const Asset::Ident
createIdent (Query<STRU> const& query)
{
// does the query somehow specify the desired name-ID?
string nameID = query.extractID (genericIdSymbol);
if (isnil (nameID))
nameID = query.extractID (StructTraits<STRU>::idSymbol());
if (isnil (nameID))
{
// no name-ID contained in the query...
// so we'll create a new one
static int i=0;
nameID = _Fmt("%s.%d")
% StructTraits<STRU>::namePrefix()
% (++i);
}
ENSURE (!isnil (nameID));
// does the query actually demand the Nth instance/element?
string seqID = query.extractID (seqNrPredicate);
if (!isnil (seqID) && 1 < uNum(seqID))
nameID += "."+seqID;
Category cat (STRUCT, StructTraits<STRU>::catFolder());
return Asset::Ident (nameID, cat );
}
void
sigTerm (Subsys* susy, string* problem) ///< called from subsystem on termination
{
REQUIRE (susy);
Lock sync (this);
triggerEmergency(!isnil (problem));
INFO (subsystem, "Subsystem '%s' terminated.", cStr(*susy));
WARN_IF (!isnil(problem), subsystem, "Irregular shutdown caused by: %s", cStr(*problem));
ERROR_IF (susy->isRunning(), subsystem, "Subsystem '%s' signals termination, "
"without resetting running state", cStr(*susy));
removeall (running_, susy);
shutdownAll();
sync.notify();
}
virtual void
run (Arg)
{
IterQueue<int> queue;
CHECK (isnil (queue));
VERIFY_ERROR (ITER_EXHAUST, *queue );
VERIFY_ERROR (ITER_EXHAUST, ++queue );
queue.feed (1);
queue.feed (3);
queue.feed (5);
CHECK (!isnil (queue));
CHECK (1 == *queue);
++queue;
CHECK (3 == *queue);
CHECK (3 == queue.pop());
CHECK (5 == *queue);
++queue;
CHECK (isnil (queue));
VERIFY_ERROR (ITER_EXHAUST, *queue );
VERIFY_ERROR (ITER_EXHAUST, ++queue );
VERIFY_ERROR (ITER_EXHAUST, queue.pop() );
// use the generic builder API to feed
// the contents of another iterator into the queue
queue = build(queue).usingSequence (elements (23,45));
int i = queue.pop();
CHECK (i == 23);
CHECK (45 == *queue);
// feeding new elements and pulling / iteration can be mixed
queue.feed(67);
CHECK (45 == *queue);
++queue;
CHECK (67 == *queue);
++queue;
CHECK (isnil (queue));
queue.feed(89);
CHECK (89 == *queue);
queue.pop();
VERIFY_ERROR (ITER_EXHAUST, *queue );
}
/** @test OpaqueHolder with additional storage for subclass.
* When a subclass requires more storage than the base class or
* Interface, we need to create a custom OpaqueHolder, specifying the
* actually necessary storage. Such a custom OpaqueHolder behaves exactly
* like the standard variant, but there is protection against accidentally
* using a standard variant to hold an instance of the larger subclass.
*
* @test Moreover, if the concrete class has a custom operator bool(), it
* will be invoked automatically from OpaqueHolder's operator bool()
*
*/
void
checkSpecialSubclass ()
{
typedef OpaqueHolder<Base, sizeof(Special)> SpecialOpaque;
cout << showSizeof<Base>() << endl;
cout << showSizeof<Special>() << endl;
cout << showSizeof<Opaque>() << endl;
cout << showSizeof<SpecialOpaque>() << endl;
CHECK (sizeof(Special) > sizeof(Base));
CHECK (sizeof(SpecialOpaque) > sizeof(Opaque));
CHECK (sizeof(SpecialOpaque) <= sizeof(Special) + sizeof(void*) + _ALIGN_);
Special s1 (6);
Special s2 (3);
CHECK (!s1); // even value
CHECK (s2); // odd value
CHECK (7 == s1.getIt()); // indeed subclass of DD<7>
CHECK (7 == s2.getIt());
SpecialOpaque ospe0;
SpecialOpaque ospe1 (s1);
SpecialOpaque ospe2 (s2);
CHECK (!ospe0); // note: bool test (isValid)
CHECK (!ospe1); // also forwarded to contained object (myVal_==6 is even)
CHECK ( ospe2);
CHECK ( isnil(ospe0)); // while isnil just checks the empty state
CHECK (!isnil(ospe1));
CHECK (!isnil(ospe2));
CHECK (7 == ospe1->getIt());
CHECK (6 == ospe1.get<Special>().myVal_);
CHECK (3 == ospe2.get<Special>().myVal_);
ospe1 = DD<5>(); // but can be reassigned like any normal Opaque
CHECK (ospe1);
CHECK (5 == ospe1->getIt());
VERIFY_ERROR (WRONG_TYPE, ospe1.get<Special>() );
Opaque normal = DD<5>();
CHECK (normal);
CHECK (5 == normal->getIt());
#if false ////////////////////////////////////////////////////////TODO: restore throwing ASSERT
// Assertion protects against SEGV
VERIFY_ERROR (ASSERTION, normal = s1 );
#endif////////////////////////////////////////////////////////////
}
void
checkSTLContainer()
{
typedef std::map<int,HO> MapHO;
CHECK (0 == Dummy::checksum());
{
MapHO maph;
CHECK (isnil (maph));
for (uint i=0; i<100; ++i)
{
HO & contained = maph[i];
CHECK (!contained);
} // 100 holder objects created by sideeffect
// ..... without creating any contained object!
CHECK (0 == Dummy::checksum());
CHECK (!isnil (maph));
CHECK (100==maph.size());
for (uint i=0; i<100; ++i)
{
create_contained_object (maph[i]);
CHECK (maph[i]);
CHECK (0 < maph[i]->acc(12));
}
CHECK (100==maph.size());
CHECK (0 != Dummy::checksum());
long value55 = maph[55]->acc(0);
long currSum = Dummy::checksum();
CHECK (1 == maph.erase(55));
CHECK (Dummy::checksum() == currSum - value55); // proves object#55's dtor has been invoked
CHECK (maph.size() == 99);
maph[55]; // create new empty holder by sideeffect...
CHECK (&maph[55]);
CHECK (!maph[55]);
CHECK (maph.size() == 100);
}
CHECK (0 == Dummy::checksum());
}
void
verify_transformIter()
{
WrappedList customList(NUM_ELMS);
WrappedList::iterator sourceValues = customList.begin();
TimeIter tIt (transform (sourceValues, makeTime));
CHECK (!isnil (tIt));
pullOut (tIt);
CHECK (!tIt);
}
inline Pipe*
StructFactoryImpl::fabricate (Query<Pipe> const& caps)
{
const Asset::Ident idi (createIdent (caps));
string streamID = caps.extractID ("stream");
if (isnil (streamID)) streamID = "default";
PProcPatt processingPattern = Session::current->defaults (Query<const ProcPatt>("stream("+streamID+")"));
return new Pipe( idi
, streamID
, processingPattern
); ///////////////////////TICKET #565 maybe store the capabilities query within the Struct asset somehow?
}
bool
allDead ()
{
if (isEmergencyExit())
{
Lock sync(this);
if (!sync.isTimedWait())
sync.setTimeout(EMERGENCYTIMEOUT);
}
return isnil (running_); // end wait if no running subsystem left
}
void
verify_simpleIters()
{
// build the test data sources
WrappedList customList(NUM_ELMS);
TestSource dedicatedSource(NUM_ELMS);
list<int>& rawList(customList.data_);
IntIter iii (eachEntry (customList));
IntIter isi (eachEntry (rawList.begin(), rawList.end()));
StrIter cii (IterSource<CStr>::build(dedicatedSource));
CHECK (!isnil (iii));
CHECK (!isnil (isi));
CHECK (!isnil (cii));
pullOut (iii);
pullOut (isi);
pullOut (cii);
CHECK (!iii);
CHECK (!isi);
CHECK (!cii);
}
inline Timeline*
StructFactoryImpl::fabricate (Query<Timeline> const& caps)
{
TODO ("extract additional properties/capabilities from the query...");
const Asset::Ident idi (createIdent (caps));
string sequenceID = caps.extractID ("sequence");
Query<Sequence> desiredSequence (isnil (sequenceID)? "" : "id("+sequenceID+")");
PSequence sequence = recursive_create_(desiredSequence);
ASSERT (sequence);
RBinding newBinding = Session::current->getRoot().attach (MObject::create (sequence));
ASSERT (newBinding);
PTimeline newTimeline = Timeline::create (idi, newBinding);
ENSURE (newTimeline); ///////////////////////TICKET #565 maybe store the capabilities query within the Struct asset somehow?
return newTimeline.get();
}
inline Sequence*
StructFactoryImpl::fabricate (Query<Sequence> const& caps)
{
// when we reach this point it is clear a suitable sequence doesn't yet exist in the model
TODO ("actually extract properties/capabilities from the query...");
string forkID = caps.extractID ("fork");
Query<Fork> desiredFork (isnil (forkID)? "" : "id("+forkID+")");
// PFork fork = Session::current->query (desiredFork); ///////////////////////////////////TICKET #639
// TODO: handle the following cases
// - fork doesn't exist --> create and attach it as root
// - fork exists and is root attached, but belongs already to a sequence --> throw
// - fork exists, but isn't root attached ---> what do do here? steal it??
PSequence newSequence = Sequence::create (createIdent (caps)); ///////////TODO fed fork in here
ENSURE (newSequence); ///////////////////////TICKET #565 maybe store the capabilities query within the Struct asset somehow?
return newSequence.get();
}
/** either fetch or build a suitable fork root for a new sequence */
RFork
getFork_forSequence (string const& desiredID)
{
RFork fork;
if (!isnil (desiredID))
fork = Session::current->elements.pick (match_specificFork (desiredID));
if (fork && !Scope::containing (fork.getRef()).isRoot())
{
UNIMPLEMENTED ("how to deal with 'stealing' a fork sub-tree to a new sequence??");
}
if (!fork)
fork = Session::current->getRoot().attach (MObject::create (ForkID (desiredID)));
return fork;
}
void
produce_smart_pointers()
{
using TestFactory = factory::MultiFact<Interface, theID, factory::BuildRefcountPtr>;
using PIfa = shared_ptr<Interface>;
TestFactory theFact;
// set up the "production lines" by lambda
theFact.defineProduction (ONE, [] { return new Implementation<ONE>; });
theFact.defineProduction (TWO, [] { return new Implementation<TWO>; });
theFact.defineProduction (THR, [] { return new Implementation<THR>; });
theFact.defineProduction (FOU, [] { return new Implementation<FOU>; });
CHECK (!isnil (theFact));
PIfa p1 = theFact(ONE);
PIfa p2 = theFact(TWO);
PIfa p3 = theFact(THR);
PIfa p4 = theFact(FOU);
PIfa p11 = theFact(ONE);
CHECK ("Impl-1" == string(*p1));
CHECK ("Impl-2" == string(*p2));
CHECK ("Impl-3" == string(*p3));
CHECK ("Impl-4" == string(*p4));
CHECK ("Impl-1" == string(*p11));
CHECK (!isSameObject(*p1, *p11));
PIfa p12(p11);
CHECK (isSameObject(*p11, *p12));
CHECK ("Impl-1" == string(*p12));
CHECK (1 == p1.use_count());
CHECK (2 == p11.use_count());
CHECK (2 == p12.use_count());
}
bool
isValid() const
{
return isnil (failureLog_);
}
/** @test cover the basic situations of object handling,
* especially copy operations and re-assignments
*/
void
checkHandling (TestList& objs)
{
Opaque oo;
CHECK (!oo);
CHECK (isnil(oo));
oo = objs[1];
CHECK (oo);
CHECK (!isnil(oo));
typedef DD<3> D3;
typedef DD<5> D5;
D3 d3 (oo.get<D3>() );
CHECK (3 == oo->getIt()); // re-access through Base interface
CHECK (!isSameObject (d3, *oo));
VERIFY_ERROR (WRONG_TYPE, oo.get<D5>() );
// direct assignment of target into Buffer
oo = D5();
CHECK (oo);
CHECK (5 == oo->getIt());
VERIFY_ERROR (WRONG_TYPE, oo.get<D3>() );
// can get a direct reference to contained object
D5 &rd5 (oo.get<D5>());
CHECK (isSameObject (rd5, *oo));
CHECK (!isnil(oo));
oo = objs[3]; // copy construction also works on non-empty object
CHECK (7 == oo->getIt());
// WARNING: direct ref has been messed up through the backdoor!
CHECK (7 == rd5.getIt());
CHECK (isSameObject (rd5, *oo));
uint cnt_before = _create_count;
oo.clear();
CHECK (!oo);
oo = D5(); // direct assignment also works on empty object
CHECK (oo);
CHECK (5 == oo->getIt());
CHECK (_create_count == 2 + cnt_before);
// one within buff and one for the anonymous temporary D5()
// verify that self-assignment is properly detected...
cnt_before = _create_count;
oo = oo;
CHECK (oo);
CHECK (_create_count == cnt_before);
oo = oo.get<D5>();
CHECK (_create_count == cnt_before);
oo = *oo;
CHECK (_create_count == cnt_before);
CHECK (oo);
oo.clear();
CHECK (!oo);
CHECK (isnil(oo));
VERIFY_ERROR (BOTTOM_VALUE, oo.get<D5>() );
#if false ///////////////////////////////////////////////////////////////////////////////////////////////TICKET #537 : restore throwing ASSERT
VERIFY_ERROR (ASSERTION, oo->getIt() );
#endif ///////////////////////////////////////////////////////////////////////////////////////////////TICKET #537 : restore throwing ASSERT
// can't access empty holder...
Opaque o1 (oo);
CHECK (!o1);
Opaque o2 (d3);
CHECK (!isSameObject (d3, *o2));
CHECK (3 == o2->getIt());
CHECK (sizeof(Opaque) <= sizeof(Base) + sizeof(void*) + _ALIGN_);
}