LLDB mainline
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A class that measures elapsed time in an exception safe way. More...
#include <Statistics.h>
Public Member Functions | |
ElapsedTime (StatsDuration &opt_time) | |
~ElapsedTime () | |
Public Attributes | |
StatsTimepoint | m_start_time |
Set to the start time when the object is created. | |
StatsDuration & | m_elapsed_time |
Elapsed time in seconds to increment when this object goes out of scope. | |
A class that measures elapsed time in an exception safe way.
This is a RAII class is designed to help gather timing statistics within LLDB where objects have optional Duration variables that get updated with elapsed times. This helps LLDB measure statistics for many things that are then reported in LLDB commands.
Objects that need to measure elapsed times should have a variable of type "StatsDuration m_time_xxx;" which can then be used in the constructor of this class inside a scope that wants to measure something:
ElapsedTime elapsed(m_time_xxx); // Do some work
This class will increment the m_time_xxx variable with the elapsed time when the object goes out of scope. The "m_time_xxx" variable will be incremented when the class goes out of scope. This allows a variable to measure something that might happen in stages at different times, like resolving a breakpoint each time a new shared library is loaded.
Definition at line 68 of file Statistics.h.
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inline |
Definition at line 76 of file Statistics.h.
References m_start_time.
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inline |
Definition at line 79 of file Statistics.h.
References elapsed(), m_elapsed_time, and m_start_time.
StatsDuration& lldb_private::ElapsedTime::m_elapsed_time |
Elapsed time in seconds to increment when this object goes out of scope.
Definition at line 73 of file Statistics.h.
Referenced by ~ElapsedTime().
StatsTimepoint lldb_private::ElapsedTime::m_start_time |
Set to the start time when the object is created.
Definition at line 71 of file Statistics.h.
Referenced by ElapsedTime(), and ~ElapsedTime().