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-rw-r--r--indra/llcommon/lleventtimer.cpp24
-rw-r--r--indra/llcommon/lleventtimer.h1
-rw-r--r--indra/llcommon/llfasttimer_class.cpp111
-rw-r--r--indra/llcommon/llinstancetracker.h69
-rw-r--r--indra/llcommon/tests/llinstancetracker_test.cpp28
5 files changed, 144 insertions, 89 deletions
diff --git a/indra/llcommon/lleventtimer.cpp b/indra/llcommon/lleventtimer.cpp
index b2fdf11197..d44e7ec1e6 100644
--- a/indra/llcommon/lleventtimer.cpp
+++ b/indra/llcommon/lleventtimer.cpp
@@ -42,7 +42,6 @@
// LLEventTimer Implementation
//
//////////////////////////////////////////////////////////////////////////////
-bool LLEventTimer::sInTickLoop = false;
LLEventTimer::LLEventTimer(F32 period)
: mEventTimer()
@@ -59,27 +58,28 @@ LLEventTimer::LLEventTimer(const LLDate& time)
LLEventTimer::~LLEventTimer()
{
- llassert(!LLEventTimer::sInTickLoop); // this LLEventTimer was destroyed from within its own tick() function - bad. if you want tick() to cause destruction of its own timer, make it return true.
}
//static
void LLEventTimer::updateClass()
{
std::list<LLEventTimer*> completed_timers;
- LLEventTimer::sInTickLoop = true;
- for (instance_iter iter = beginInstances(); iter != endInstances(); )
+
{
- LLEventTimer& timer = *iter++;
- F32 et = timer.mEventTimer.getElapsedTimeF32();
- if (timer.mEventTimer.getStarted() && et > timer.mPeriod) {
- timer.mEventTimer.reset();
- if ( timer.tick() )
- {
- completed_timers.push_back( &timer );
+ LLInstanceTrackerScopedGuard guard;
+ for (instance_iter iter = guard.beginInstances(); iter != guard.endInstances(); )
+ {
+ LLEventTimer& timer = *iter++;
+ F32 et = timer.mEventTimer.getElapsedTimeF32();
+ if (timer.mEventTimer.getStarted() && et > timer.mPeriod) {
+ timer.mEventTimer.reset();
+ if ( timer.tick() )
+ {
+ completed_timers.push_back( &timer );
+ }
}
}
}
- LLEventTimer::sInTickLoop = false;
if ( completed_timers.size() > 0 )
{
diff --git a/indra/llcommon/lleventtimer.h b/indra/llcommon/lleventtimer.h
index f792138feb..5181cce52d 100644
--- a/indra/llcommon/lleventtimer.h
+++ b/indra/llcommon/lleventtimer.h
@@ -55,7 +55,6 @@ public:
protected:
LLTimer mEventTimer;
F32 mPeriod;
- static bool sInTickLoop;
};
#endif //LL_EVENTTIMER_H
diff --git a/indra/llcommon/llfasttimer_class.cpp b/indra/llcommon/llfasttimer_class.cpp
index 6d8d81e114..2e5edb1f3b 100644
--- a/indra/llcommon/llfasttimer_class.cpp
+++ b/indra/llcommon/llfasttimer_class.cpp
@@ -218,9 +218,10 @@ LLFastTimer::DeclareTimer::DeclareTimer(const std::string& name)
// static
void LLFastTimer::DeclareTimer::updateCachedPointers()
{
+ DeclareTimer::LLInstanceTrackerScopedGuard guard;
// propagate frame state pointers to timer declarations
- for (DeclareTimer::instance_iter it = DeclareTimer::beginInstances();
- it != DeclareTimer::endInstances();
+ for (DeclareTimer::instance_iter it = guard.beginInstances();
+ it != guard.endInstances();
++it)
{
// update cached pointer
@@ -371,20 +372,23 @@ void LLFastTimer::NamedTimer::buildHierarchy()
if (sCurFrameIndex < 0 ) return;
// set up initial tree
- for (instance_iter it = NamedTimer::beginInstances();
- it != endInstances();
- ++it)
{
- NamedTimer& timer = *it;
- if (&timer == NamedTimerFactory::instance().getRootTimer()) continue;
-
- // bootstrap tree construction by attaching to last timer to be on stack
- // when this timer was called
- if (timer.getFrameState().mLastCaller && timer.mParent == NamedTimerFactory::instance().getRootTimer())
+ NamedTimer::LLInstanceTrackerScopedGuard guard;
+ for (instance_iter it = guard.beginInstances();
+ it != guard.endInstances();
+ ++it)
{
- timer.setParent(timer.getFrameState().mLastCaller->mTimer);
- // no need to push up tree on first use, flag can be set spuriously
- timer.getFrameState().mMoveUpTree = false;
+ NamedTimer& timer = *it;
+ if (&timer == NamedTimerFactory::instance().getRootTimer()) continue;
+
+ // bootstrap tree construction by attaching to last timer to be on stack
+ // when this timer was called
+ if (timer.getFrameState().mLastCaller && timer.mParent == NamedTimerFactory::instance().getRootTimer())
+ {
+ timer.setParent(timer.getFrameState().mLastCaller->mTimer);
+ // no need to push up tree on first use, flag can be set spuriously
+ timer.getFrameState().mMoveUpTree = false;
+ }
}
}
@@ -486,18 +490,21 @@ void LLFastTimer::NamedTimer::resetFrame()
F64 total_time = 0;
LLSD sd;
- for (NamedTimer::instance_iter it = NamedTimer::beginInstances();
- it != NamedTimer::endInstances();
- ++it)
{
- NamedTimer& timer = *it;
- FrameState& info = timer.getFrameState();
- sd[timer.getName()]["Time"] = (LLSD::Real) (info.mSelfTimeCounter*iclock_freq);
- sd[timer.getName()]["Calls"] = (LLSD::Integer) info.mCalls;
-
- // computing total time here because getting the root timer's getCountHistory
- // doesn't work correctly on the first frame
- total_time = total_time + info.mSelfTimeCounter * iclock_freq;
+ NamedTimer::LLInstanceTrackerScopedGuard guard;
+ for (NamedTimer::instance_iter it = guard.beginInstances();
+ it != guard.endInstances();
+ ++it)
+ {
+ NamedTimer& timer = *it;
+ FrameState& info = timer.getFrameState();
+ sd[timer.getName()]["Time"] = (LLSD::Real) (info.mSelfTimeCounter*iclock_freq);
+ sd[timer.getName()]["Calls"] = (LLSD::Integer) info.mCalls;
+
+ // computing total time here because getting the root timer's getCountHistory
+ // doesn't work correctly on the first frame
+ total_time = total_time + info.mSelfTimeCounter * iclock_freq;
+ }
}
sd["Total"]["Time"] = (LLSD::Real) total_time;
@@ -531,21 +538,24 @@ void LLFastTimer::NamedTimer::resetFrame()
DeclareTimer::updateCachedPointers();
// reset for next frame
- for (NamedTimer::instance_iter it = NamedTimer::beginInstances();
- it != NamedTimer::endInstances();
- ++it)
{
- NamedTimer& timer = *it;
-
- FrameState& info = timer.getFrameState();
- info.mSelfTimeCounter = 0;
- info.mCalls = 0;
- info.mLastCaller = NULL;
- info.mMoveUpTree = false;
- // update parent pointer in timer state struct
- if (timer.mParent)
+ NamedTimer::LLInstanceTrackerScopedGuard guard;
+ for (NamedTimer::instance_iter it = guard.beginInstances();
+ it != guard.endInstances();
+ ++it)
{
- info.mParent = &timer.mParent->getFrameState();
+ NamedTimer& timer = *it;
+
+ FrameState& info = timer.getFrameState();
+ info.mSelfTimeCounter = 0;
+ info.mCalls = 0;
+ info.mLastCaller = NULL;
+ info.mMoveUpTree = false;
+ // update parent pointer in timer state struct
+ if (timer.mParent)
+ {
+ info.mParent = &timer.mParent->getFrameState();
+ }
}
}
@@ -575,20 +585,23 @@ void LLFastTimer::NamedTimer::reset()
}
// reset all history
- for (NamedTimer::instance_iter it = NamedTimer::beginInstances();
- it != NamedTimer::endInstances();
- ++it)
{
- NamedTimer& timer = *it;
- if (&timer != NamedTimerFactory::instance().getRootTimer())
+ NamedTimer::LLInstanceTrackerScopedGuard guard;
+ for (NamedTimer::instance_iter it = guard.beginInstances();
+ it != guard.endInstances();
+ ++it)
{
- timer.setParent(NamedTimerFactory::instance().getRootTimer());
+ NamedTimer& timer = *it;
+ if (&timer != NamedTimerFactory::instance().getRootTimer())
+ {
+ timer.setParent(NamedTimerFactory::instance().getRootTimer());
+ }
+
+ timer.mCountAverage = 0;
+ timer.mCallAverage = 0;
+ memset(timer.mCountHistory, 0, sizeof(U32) * HISTORY_NUM);
+ memset(timer.mCallHistory, 0, sizeof(U32) * HISTORY_NUM);
}
-
- timer.mCountAverage = 0;
- timer.mCallAverage = 0;
- memset(timer.mCountHistory, 0, sizeof(U32) * HISTORY_NUM);
- memset(timer.mCallHistory, 0, sizeof(U32) * HISTORY_NUM);
}
sLastFrameIndex = 0;
diff --git a/indra/llcommon/llinstancetracker.h b/indra/llcommon/llinstancetracker.h
index 11fe523651..9df7998273 100644
--- a/indra/llcommon/llinstancetracker.h
+++ b/indra/llcommon/llinstancetracker.h
@@ -98,7 +98,10 @@ private:
mKey = key;
getMap_()[key] = static_cast<T*>(this);
}
- void remove_() { getMap_().erase(mKey); }
+ void remove_()
+ {
+ getMap_().erase(mKey);
+ }
static InstanceMap& getMap_()
{
@@ -129,31 +132,65 @@ public:
/// for completeness of analogy with the generic implementation
static T* getInstance(T* k) { return k; }
- static key_iter beginKeys() { return getSet_().begin(); }
- static key_iter endKeys() { return getSet_().end(); }
- static instance_iter beginInstances() { return instance_iter(getSet_().begin()); }
- static instance_iter endInstances() { return instance_iter(getSet_().end()); }
static S32 instanceCount() { return getSet_().size(); }
+ // Instantiate this to get access to iterators for this type. It's a 'guard' in the sense
+ // that it treats deletes of this type as errors as long as there is an instance of
+ // this class alive in scope somewhere (i.e. deleting while iterating is bad).
+ class LLInstanceTrackerScopedGuard
+ {
+ public:
+ LLInstanceTrackerScopedGuard()
+ {
+ ++sIterationNestDepth;
+ }
+
+ ~LLInstanceTrackerScopedGuard()
+ {
+ --sIterationNestDepth;
+ }
+
+ static instance_iter beginInstances() { return instance_iter(getSet_().begin()); }
+ static instance_iter endInstances() { return instance_iter(getSet_().end()); }
+ static key_iter beginKeys() { return getSet_().begin(); }
+ static key_iter endKeys() { return getSet_().end(); }
+ };
+
protected:
- LLInstanceTracker() { getSet_().insert(static_cast<T*>(this)); }
- virtual ~LLInstanceTracker() { getSet_().erase(static_cast<T*>(this)); }
+ LLInstanceTracker()
+ {
+ // it's safe but unpredictable to create instances of this type while all instances are being iterated over. I hate unpredictable. This assert will probably be turned on early in the next development cycle.
+ //llassert(sIterationNestDepth == 0);
+ getSet_().insert(static_cast<T*>(this));
+ }
+ virtual ~LLInstanceTracker()
+ {
+ // it's unsafe to delete instances of this type while all instances are being iterated over.
+ llassert(sIterationNestDepth == 0);
+ getSet_().erase(static_cast<T*>(this));
+ }
- LLInstanceTracker(const LLInstanceTracker& other) { getSet_().insert(static_cast<T*>(this)); }
+ LLInstanceTracker(const LLInstanceTracker& other)
+ {
+ //llassert(sIterationNestDepth == 0);
+ getSet_().insert(static_cast<T*>(this));
+ }
- static InstanceSet& getSet_() // called after getReady() but before go()
- {
- if (! sInstances)
- {
- sInstances = new InstanceSet;
- }
- return *sInstances;
- }
+ static InstanceSet& getSet_()
+ {
+ if (! sInstances)
+ {
+ sInstances = new InstanceSet;
+ }
+ return *sInstances;
+ }
static InstanceSet* sInstances;
+ static S32 sIterationNestDepth;
};
template <typename T, typename KEY> typename LLInstanceTracker<T, KEY>::InstanceMap* LLInstanceTracker<T, KEY>::sInstances = NULL;
template <typename T> typename LLInstanceTracker<T, T*>::InstanceSet* LLInstanceTracker<T, T*>::sInstances = NULL;
+template <typename T> S32 LLInstanceTracker<T, T*>::sIterationNestDepth = 0;
#endif
diff --git a/indra/llcommon/tests/llinstancetracker_test.cpp b/indra/llcommon/tests/llinstancetracker_test.cpp
index 7415f2d33b..4bb3ec2922 100644
--- a/indra/llcommon/tests/llinstancetracker_test.cpp
+++ b/indra/llcommon/tests/llinstancetracker_test.cpp
@@ -138,23 +138,29 @@ namespace tut
keys.insert(&one);
keys.insert(&two);
keys.insert(&three);
- for (Unkeyed::key_iter ki(Unkeyed::beginKeys()), kend(Unkeyed::endKeys());
- ki != kend; ++ki)
- {
- ensure_equals("spurious key", keys.erase(*ki), 1);
- }
+ {
+ Unkeyed::LLInstanceTrackerScopedGuard guard;
+ for (Unkeyed::key_iter ki(guard.beginKeys()), kend(guard.endKeys());
+ ki != kend; ++ki)
+ {
+ ensure_equals("spurious key", keys.erase(*ki), 1);
+ }
+ }
ensure_equals("unreported key", keys.size(), 0);
KeySet instances;
instances.insert(&one);
instances.insert(&two);
instances.insert(&three);
- for (Unkeyed::instance_iter ii(Unkeyed::beginInstances()), iend(Unkeyed::endInstances());
- ii != iend; ++ii)
- {
- Unkeyed& ref = *ii;
- ensure_equals("spurious instance", instances.erase(&ref), 1);
- }
+ {
+ Unkeyed::LLInstanceTrackerScopedGuard guard;
+ for (Unkeyed::instance_iter ii(guard.beginInstances()), iend(guard.endInstances());
+ ii != iend; ++ii)
+ {
+ Unkeyed& ref = *ii;
+ ensure_equals("spurious instance", instances.erase(&ref), 1);
+ }
+ }
ensure_equals("unreported instance", instances.size(), 0);
}
} // namespace tut
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