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/*
* Copyright (C) 2014 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef ART_RUNTIME_GC_GC_CAUSE_H_
#define ART_RUNTIME_GC_GC_CAUSE_H_
#include <iosfwd>
namespace art {
namespace gc {
// What caused the GC?
enum GcCause {
// GC triggered by a failed allocation. Thread doing allocation is blocked waiting for GC before
// retrying allocation.
kGcCauseForAlloc,
// A background GC trying to ensure there is free memory ahead of allocations.
kGcCauseBackground,
// An explicit System.gc() call.
kGcCauseExplicit,
// GC triggered for a native allocation.
kGcCauseForNativeAlloc,
// GC triggered for a collector transition.
kGcCauseCollectorTransition,
// Not a real GC cause, used when we disable moving GC (currently for GetPrimitiveArrayCritical).
kGcCauseDisableMovingGc,
// Not a real GC cause, used when we trim the heap.
kGcCauseTrim,
// GC triggered for background transition when both foreground and background collector are CMS.
kGcCauseHomogeneousSpaceCompact,
};
const char* PrettyCause(GcCause cause);
std::ostream& operator<<(std::ostream& os, const GcCause& gc_cause);
} // namespace gc
} // namespace art
#endif // ART_RUNTIME_GC_GC_CAUSE_H_