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78 lines
2.3 KiB
78 lines
2.3 KiB
// Timing tools.
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#ifndef _CL_TIMING_H
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#define _CL_TIMING_H
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#include "cln/config.h"
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#include "cln/intparam.h"
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#include "cln/types.h"
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#include "cln/io.h"
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namespace cln {
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struct cl_timespec {
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uintL tv_sec; // seconds since 1970-01-01
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sintL tv_nsec; // nanoseconds, >= 0, < 1000000000
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// Constructors.
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cl_timespec () {}
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cl_timespec (uintL sec, sintL nsec)
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: tv_sec (sec), tv_nsec (nsec) {}
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};
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struct cl_time_duration {
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uintL tv_sec; // seconds
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uintL tv_nsec; // nanoseconds
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// Constructors.
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cl_time_duration () {}
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cl_time_duration (uintL sec)
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: tv_sec (sec), tv_nsec (0) {}
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cl_time_duration (uintL sec, uintL nsec)
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: tv_sec (sec), tv_nsec (nsec) {}
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};
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struct cl_time_consumption {
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cl_time_duration realtime; // elapsed time
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cl_time_duration usertime; // system's notion of user time/run time
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};
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extern const cl_time_duration operator- (const cl_timespec&, const cl_timespec&);
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extern const cl_timespec operator+ (const cl_timespec&, const cl_time_duration&);
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extern const cl_timespec operator- (const cl_timespec&, const cl_time_duration&);
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extern const cl_time_duration operator+ (const cl_time_duration&, const cl_time_duration&);
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extern const cl_time_duration operator- (const cl_time_duration&, const cl_time_duration&);
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extern const cl_timespec cl_current_time ();
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extern const cl_time_consumption cl_current_time_consumption ();
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// Report a time consumption.
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// (Should better be a virtual member function of `cl_time_consumption').
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extern void cl_timing_report (cl_ostream, const cl_time_consumption&);
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struct cl_timing {
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// Constructor, starts the time interval.
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cl_timing (cl_time_consumption& accumulator);
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cl_timing (cl_ostream destination = stderr);
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cl_timing (const char *, cl_ostream destination = stderr);
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// Destructor, closes the time interval and does a report.
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~cl_timing ();
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//private:
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cl_time_consumption tmp;
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void (*report_fn) (const cl_timing&);
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void* report_destination;
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const char * comment;
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};
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// Macro for timing.
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// Usage:
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// { CL_TIMING; computation(); }
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// or { CL_TIMING(accumulator); computation(); }
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// or { CL_TIMING(stdout); computation(); }
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// The timing interval starts immediately and ends at the closing brace.
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#define CL_TIMING CL_TIMING1(__LINE__)
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#define CL_TIMING1(line) CL_TIMING2(line)
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#define CL_TIMING2(line) cl_timing cl_timing_dummy_##line
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} // namespace cln
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#endif /* _CL_TIMING_H */
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