Method removeFromFreeUnits

src/memory/HeapAllocator.cpp:281–294

Remove the unit from the linked-list of free units

// Remove the unit from the linked-list of free units
void HeapAllocator::removeFromFreeUnits(MemoryUnitHeader* unit) {

    if (unit->previousFreeUnit != nullptr) {
        unit->previousFreeUnit->nextFreeUnit = unit->nextFreeUnit;
    }
    if (unit->nextFreeUnit != nullptr) {
        unit->nextFreeUnit->previousFreeUnit = unit->previousFreeUnit;
    }
    if (unit == mFreeUnits) {
        mFreeUnits = unit->nextFreeUnit;
    }
    unit->nextFreeUnit = nullptr;
    unit->previousFreeUnit = nullptr;
}

// Merge two contiguous memory units that are not allocated.
/// Memory unit 2 will be merged into memory unit 1 and memory unit 2 will be removed