#ifndef _DYNAMICIDMANAGER_H
#define _DYNAMICIDMANAGER_H
class IDAllocator;
class DynamicIDManager
{
public:
explicit DynamicIDManager(IDAllocator *allocator)
: m_allocator (allocator),
m_nextID(0),
m_capacity(0) {
m_current = m_idList.begin();
}
DynamicIDManager(IDAllocator* allocator, idx_t initialStart, size_t quantity)
: m_allocator (allocator),
m_nextID(initialStart + quantity),
m_capacity(quantity)
{
m_idList.push_back(t_id(initialStart, quantity));
m_current = m_idList.begin();
}
void reserve(size_t quantity);
void reserveAdditional(size_t quantity);
idx_t begin();
idx_t currentID();
void addBlock(idx_t start, size_t quantity);
// Prefix increment operator
DynamicIDManager& operator++();
size_t capacity() { return m_capacity; }
bool inRange(idx_t id);
private:
DynamicIDManager(); // default constructor disabled
// Methods
bool allocateIDs(size_t quantity, idx_t *start);
IDAllocator* m_allocator;
// Data
typedef std::pair<idx_t, size_t> t_id;
typedef std::list<t_id> t_idList;
t_idList m_idList;
t_idList::iterator m_current;
idx_t m_nextID;
size_t m_capacity;
};
#endif