diff options
Diffstat (limited to 'base/trace_event/heap_profiler_allocation_register.cc')
-rw-r--r-- | base/trace_event/heap_profiler_allocation_register.cc | 13 |
1 files changed, 9 insertions, 4 deletions
diff --git a/base/trace_event/heap_profiler_allocation_register.cc b/base/trace_event/heap_profiler_allocation_register.cc index 37647ee..2920153 100644 --- a/base/trace_event/heap_profiler_allocation_register.cc +++ b/base/trace_event/heap_profiler_allocation_register.cc @@ -10,10 +10,14 @@ namespace base { namespace trace_event { AllocationRegister::AllocationRegister() - // Reserve enough address space to store |kNumCells| entries if necessary, + : AllocationRegister(kNumBuckets * kNumCellsPerBucket) {} + +AllocationRegister::AllocationRegister(uint32_t num_cells) + // Reserve enough address space to store |num_cells_| entries if necessary, // with a guard page after it to crash the program when attempting to store // more entries. - : cells_(static_cast<Cell*>(AllocateVirtualMemory(kNumCells * + : num_cells_(num_cells), + cells_(static_cast<Cell*>(AllocateVirtualMemory(num_cells_ * sizeof(Cell)))), buckets_(static_cast<CellIndex*>( AllocateVirtualMemory(kNumBuckets * sizeof(CellIndex)))), @@ -23,9 +27,10 @@ AllocationRegister::AllocationRegister() free_list_(0), next_unused_cell_(1) {} + AllocationRegister::~AllocationRegister() { FreeVirtualMemory(buckets_, kNumBuckets * sizeof(CellIndex)); - FreeVirtualMemory(cells_, kNumCells * sizeof(Cell)); + FreeVirtualMemory(cells_, num_cells_ * sizeof(Cell)); } void AllocationRegister::Insert(void* address, @@ -144,7 +149,7 @@ AllocationRegister::CellIndex AllocationRegister::GetFreeCell() { // the simplest solution is to just allocate a humongous chunk of address // space. - DCHECK_LT(next_unused_cell_, kNumCells + 1); + DCHECK_LT(next_unused_cell_, num_cells_ + 1); return idx; } |