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Code Issues Releases Activity

replaced references to SectorMap with shared_ptr to avoid data races in AI code

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This commit is contained in:
Ivan Savenko 2015-12-04 00:10:51 +02:00
parent 73b4188fab
commit 2e56b547ee
5 changed files with 24 additions and 24 deletions
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4
AI/VCAI/AIUtility.cpp
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@ -363,7 +363,7 @@ int3 whereToExplore(HeroPtr h)
int radius = h->getSightRadious();
int3 hpos = h->visitablePos();
SectorMap &sm = ai->getCachedSectorMap(h);
auto sm = ai->getCachedSectorMap(h);
//look for nearby objs -> visit them if they're close enouh
const int DIST_LIMIT = 3;
@ -378,7 +378,7 @@ int3 whereToExplore(HeroPtr h)
CGPath p;
ai->myCb->getPathsInfo(h.get())->getPath(p, op);
if (p.nodes.size() && p.endPos() == op && p.nodes.size() <= DIST_LIMIT)
if (ai->isGoodForVisit(obj, h, sm))
if (ai->isGoodForVisit(obj, h, *sm))
nearbyVisitableObjs.push_back(obj);
}
}

2
AI/VCAI/Fuzzy.cpp
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@ -484,7 +484,7 @@ float FuzzyHelper::evaluate (Goals::ClearWayTo & g)
if (!g.hero.h)
throw cannotFulfillGoalException("ClearWayTo called without hero!");
int3 t = ai->getCachedSectorMap(g.hero).firstTileToGet(g.hero, g.tile);
int3 t = ai->getCachedSectorMap(g.hero)->firstTileToGet(g.hero, g.tile);
if (t.valid())
{

16
AI/VCAI/Goals.cpp
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@ -484,9 +484,9 @@ TGoalVec ClearWayTo::getAllPossibleSubgoals()
//if our hero is trapped, make sure we request clearing the way from OUR perspective
SectorMap &sm = ai->getCachedSectorMap(h);
auto sm = ai->getCachedSectorMap(h);
int3 tileToHit = sm.firstTileToGet(h, tile);
int3 tileToHit = sm->firstTileToGet(h, tile);
if (!tileToHit.valid())
continue;
@ -634,11 +634,11 @@ TGoalVec Explore::getAllPossibleSubgoals()
for (auto h : heroes)
{
SectorMap &sm = ai->getCachedSectorMap(h);
auto sm = ai->getCachedSectorMap(h);
for (auto obj : objs) //double loop, performance risk?
{
auto t = sm.firstTileToGet(h, obj->visitablePos()); //we assume that no more than one tile on the way is guarded
auto t = sm->firstTileToGet(h, obj->visitablePos()); //we assume that no more than one tile on the way is guarded
if (ai->isTileNotReserved(h, t))
ret.push_back (sptr(Goals::ClearWayTo(obj->visitablePos(), h).setisAbstract(true)));
}
@ -964,7 +964,7 @@ TGoalVec Conquer::getAllPossibleSubgoals()
for (auto h : cb->getHeroesInfo())
{
SectorMap &sm = ai->getCachedSectorMap(h);
auto sm = ai->getCachedSectorMap(h);
std::vector<const CGObjectInstance *> ourObjs(objs); //copy common objects
for (auto obj : ai->reservedHeroesMap[h]) //add objects reserved by this hero
@ -975,7 +975,7 @@ TGoalVec Conquer::getAllPossibleSubgoals()
for (auto obj : ourObjs)
{
int3 dest = obj->visitablePos();
auto t = sm.firstTileToGet(h, dest); //we assume that no more than one tile on the way is guarded
auto t = sm->firstTileToGet(h, dest); //we assume that no more than one tile on the way is guarded
if (t.valid()) //we know any path at all
{
if (ai->isTileNotReserved(h, t)) //no other hero wants to conquer that tile
@ -1094,11 +1094,11 @@ TGoalVec GatherArmy::getAllPossibleSubgoals()
}
for(auto h : cb->getHeroesInfo())
{
SectorMap &sm = ai->getCachedSectorMap(h);
auto sm = ai->getCachedSectorMap(h);
for (auto obj : objs)
{ //find safe dwelling
auto pos = obj->visitablePos();
if (ai->isGoodForVisit(obj, h, sm))
if (ai->isGoodForVisit(obj, h, *sm))
ret.push_back (sptr (Goals::VisitTile(pos).sethero(h)));
}
}

22
AI/VCAI/VCAI.cpp
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@ -845,9 +845,9 @@ void VCAI::makeTurnInternal()
bool VCAI::goVisitObj(const CGObjectInstance * obj, HeroPtr h)
{
int3 dst = obj->visitablePos();
SectorMap &sm = getCachedSectorMap(h);
auto sm = getCachedSectorMap(h);
logAi->debugStream() << boost::format("%s will try to visit %s at (%s)") % h->name % obj->getObjectName() % strFromInt3(dst);
int3 pos = sm.firstTileToGet(h, dst);
int3 pos = sm->firstTileToGet(h, dst);
if (!pos.valid()) //rare case when we are already standing on one of potential objects
return false;
return moveHeroToTile(pos, h);
@ -1383,10 +1383,10 @@ std::vector<const CGObjectInstance *> VCAI::getPossibleDestinations(HeroPtr h)
{
validateVisitableObjs();
std::vector<const CGObjectInstance *> possibleDestinations;
SectorMap &sm = getCachedSectorMap(h);
auto sm = getCachedSectorMap(h);
for(const CGObjectInstance *obj : visitableObjs)
{
if (isGoodForVisit(obj, h, sm))
if (isGoodForVisit(obj, h, *sm))
{
possibleDestinations.push_back(obj);
}
@ -1441,12 +1441,12 @@ void VCAI::wander(HeroPtr h)
validateVisitableObjs();
std::vector <ObjectIdRef> dests, tmp;
SectorMap &sm = getCachedSectorMap(h);
auto sm = getCachedSectorMap(h);
range::copy(reservedHeroesMap[h], std::back_inserter(tmp)); //also visit our reserved objects - but they are not prioritized to avoid running back and forth
for (auto obj : tmp)
{
int3 pos = sm.firstTileToGet(h, obj->visitablePos());
int3 pos = sm->firstTileToGet(h, obj->visitablePos());
if (pos.valid())
if (isAccessibleForHero (pos, h)) //even nearby objects could be blocked by other heroes :(
dests.push_back(obj); //can't use lambda for member function :(
@ -1455,7 +1455,7 @@ void VCAI::wander(HeroPtr h)
range::copy(getPossibleDestinations(h), std::back_inserter(dests));
erase_if(dests, [&](ObjectIdRef obj) -> bool
{
return !isSafeToVisit(h, sm.firstTileToGet(h, obj->visitablePos()));
return !isSafeToVisit(h, sm->firstTileToGet(h, obj->visitablePos()));
});
if(!dests.size())
@ -2541,7 +2541,7 @@ int3 VCAI::explorationNewPoint(HeroPtr h)
int3 VCAI::explorationDesperate(HeroPtr h)
{
SectorMap &sm = getCachedSectorMap(h);
auto sm = getCachedSectorMap(h);
int radius = h->getSightRadious();
std::vector<std::vector<int3> > tiles; //tiles[distance_to_fow]
@ -2570,7 +2570,7 @@ int3 VCAI::explorationDesperate(HeroPtr h)
if (!howManyTilesWillBeDiscovered(tile, radius, cbp)) //avoid costly checks of tiles that don't reveal much
continue;
auto t = sm.firstTileToGet(h, tile);
auto t = sm->firstTileToGet(h, tile);
if (t.valid())
{
ui64 ourDanger = evaluateDanger(t, h.h);
@ -2759,14 +2759,14 @@ TResources VCAI::freeResources() const
return myRes;
}
SectorMap& VCAI::getCachedSectorMap(HeroPtr h)
std::shared_ptr<SectorMap> VCAI::getCachedSectorMap(HeroPtr h)
{
auto it = cachedSectorMaps.find(h);
if (it != cachedSectorMaps.end())
return it->second;
else
{
cachedSectorMaps.insert(std::make_pair(h, SectorMap(h)));
cachedSectorMaps[h] = std::make_shared<SectorMap>(h);
return cachedSectorMaps[h];
}
}

4
AI/VCAI/VCAI.h
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@ -159,7 +159,7 @@ public:
std::set<const CGObjectInstance *> alreadyVisited;
std::set<const CGObjectInstance *> reservedObjs; //to be visited by specific hero
std::map <HeroPtr, SectorMap> cachedSectorMaps; //TODO: serialize? not necessary
std::map <HeroPtr, std::shared_ptr<SectorMap>> cachedSectorMaps; //TODO: serialize? not necessary
TResources saving;
@ -312,7 +312,7 @@ public:
const CGObjectInstance *getUnvisitedObj(const std::function<bool(const CGObjectInstance *)> &predicate);
bool isAccessibleForHero(const int3 & pos, HeroPtr h, bool includeAllies = false) const;
//optimization - use one SM for every hero call
SectorMap& getCachedSectorMap(HeroPtr h);
std::shared_ptr<SectorMap> getCachedSectorMap(HeroPtr h);
const CGTownInstance *findTownWithTavern() const;
bool canRecruitAnyHero(const CGTownInstance * t = NULL) const;