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6d612ced3d
This commit marks (hopefully) ever one-parameter constructor as explicit. It also uses override in (hopefully) all circumstances where a virtual method is overridden. There are a very few other minor changes - most of them were necessary to get everything to compile (like one additional constructor). In one case I changed an implicit operation to an explicit string conversion - I think the automatically chosen conversion was much more convoluted. This took longer than I want to admit but not as long as I feared :)
135 lines
2.9 KiB
C++
135 lines
2.9 KiB
C++
// Classes that collect and report statistics.
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#ifndef STATS_H
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#define STATS_H
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#include <sys/types.h>
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#include <sys/time.h>
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#include <sys/resource.h>
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// Object called by SegmentProfiler when it is done and reports its
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// cumulative CPU/memory statistics.
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class SegmentStatsReporter {
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public:
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SegmentStatsReporter() { }
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virtual ~SegmentStatsReporter() { }
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virtual void SegmentProfile(const char* name, const Location* loc,
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double dtime, int dmem) = 0;
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};
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// A SegmentProfiler tracks how much CPU and memory is consumed
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// across its lifetime.
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//
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// ### This needs porting to Linux. It could also be improved by
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// better efforts at measuring its own overhead.
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class SegmentProfiler {
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public:
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// The constructor takes some way of identifying the segment.
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SegmentProfiler(SegmentStatsReporter* arg_reporter,
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const char* arg_name)
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: reporter(arg_reporter), name(arg_name), loc(), initial_rusage()
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{
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if ( reporter )
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Init();
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}
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SegmentProfiler(SegmentStatsReporter* arg_reporter,
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const Location* arg_loc)
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: reporter(arg_reporter), name(), loc(arg_loc), initial_rusage()
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{
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if ( reporter )
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Init();
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}
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~SegmentProfiler()
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{
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if ( reporter )
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Report();
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}
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protected:
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void Init();
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void Report();
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SegmentStatsReporter* reporter;
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const char* name;
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const Location* loc;
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struct rusage initial_rusage;
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};
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class ProfileLogger : public SegmentStatsReporter {
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public:
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ProfileLogger(BroFile* file, double interval);
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~ProfileLogger() override;
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void Log();
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BroFile* File() { return file; }
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protected:
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void SegmentProfile(const char* name, const Location* loc,
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double dtime, int dmem) override;
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private:
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BroFile* file;
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unsigned int log_count;
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};
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// Generates load_sample() events.
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class SampleLogger : public SegmentStatsReporter {
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public:
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SampleLogger();
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~SampleLogger() override;
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// These are called to report that a given function or location
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// has been seen during the sampling.
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void FunctionSeen(const Func* func);
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void LocationSeen(const Location* loc);
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protected:
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void SegmentProfile(const char* name, const Location* loc,
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double dtime, int dmem) override;
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TableVal* load_samples;
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};
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extern ProfileLogger* profiling_logger;
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extern ProfileLogger* segment_logger;
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extern SampleLogger* sample_logger;
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// Connection statistics.
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extern uint64 killed_by_inactivity;
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// Content gap statistics.
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extern uint64 tot_ack_events;
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extern uint64 tot_ack_bytes;
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extern uint64 tot_gap_events;
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extern uint64 tot_gap_bytes;
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class PacketProfiler {
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public:
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PacketProfiler(unsigned int mode, double freq, BroFile* arg_file);
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~PacketProfiler();
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static const unsigned int MODE_TIME = 1;
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static const unsigned int MODE_PACKET = 2;
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static const unsigned int MODE_VOLUME = 3;
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void ProfilePkt(double t, unsigned int bytes);
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protected:
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BroFile* file;
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unsigned int update_mode;
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double update_freq;
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double last_Utime, last_Stime, last_Rtime;
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double last_timestamp, time;
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uint64 last_mem;
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uint64 pkt_cnt;
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uint64 byte_cnt;
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};
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#endif
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