mongodb: service_stats.h Source File

00001 // service_stats.h
00002 
00019 #ifndef DB_STATS_SERVICE_STATS_HEADER
00020 #define DB_STATS_SERVICE_STATS_HEADER
00021 
00022 #include <string>
00023 
00024 #include "../../util/concurrency/spin_lock.h"
00025 
00026 namespace mongo {
00027 
00028     using std::string;
00029 
00030     class Histogram;
00031 
00037     class ServiceStats {
00038     public:
00039         ServiceStats();
00040         ~ServiceStats();
00041 
00047         void logResponse( uint64_t duration, uint64_t bytes );
00048 
00053         string toHTML() const;
00054 
00055     private:
00056         SpinLock   _spinLock;         // protects state below
00057         Histogram* _timeHistogram;
00058         Histogram* _spaceHistogram;
00059 
00060         ServiceStats( const ServiceStats& );
00061         ServiceStats operator=( const ServiceStats& );
00062     };
00063 
00064 }  // namespace mongo
00065 
00066 #endif  //  DB_STATS_SERVICE_STATS_HEADER