transaction.h

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#pragma once
 
#include "roo_prefs/collection.h"
 
namespace roo_prefs {
 
/// Ref-counted RAII for managing access to Preference namespaces. Allows
/// orchestrating access to the Store.
class Transaction {
 public:
  Transaction(Collection& collection, bool read_only = false)
      : collection_(collection) {
    active_ = collection_.inc(read_only);
  }
 
  ~Transaction() {
    if (active_) collection_.dec();
  }
 
  bool active() const { return active_; }
 
  Store& store() { return collection_.store_; }
 
 private:
  Collection& collection_;
  bool active_;
};
 
}  // namespace roo_prefs