o [c@s\ddlZddlZddlZddlZddlZddlZdZdeedZdZ GdddZ dS)N<c@sheZdZdZddZejejfddZ e j e j e jfddZdd d Zejejejfd d Zd dZdS)WindowsLoadTrackerz This class asynchronously reads the performance counters to calculate the system load on Windows. A "raw" thread is used here to prevent interference with the test suite's cases for the threading module. cCsPttjg|_d|_tdddd|_tdddd|_t |j didS)NTF) winreg QueryInfoKeyHKEY_PERFORMANCE_DATA_values_load _overlapped CreateEvent_running_stopped_threadstart_new_thread _update_loadselfrr1/usr/lib/python3.10/test/libregrtest/win_utils.py__init__s zWindowsLoadTracker.__init__cCs.||jdr|||jds||jdS)Ni)r_calculate_loadr)r_wait_signalrrrr&s  zWindowsLoadTracker._update_loadcCs||d\}}|d|d\}|d||\}}||} ||} | | krC|d|| \} } } | | 7} | dkr?| | }|d||\}n| | ks"dS|jdurX|jt|dt|_dSt|jtkrg|j|dSt|jt|j|_dS)N2L4xLLLL28xL,g?)r LOAD_FACTOR_1lenr NVALUEappendsum)r_query_hkey_unpackdata_ obj_start data_start defn_start data_base defn_basesizeidxoffsetcounter_offsetprocessor_queue_lengthrrrr0s*    z"WindowsLoadTracker._calculate_loadTcCs |dSN)__del__)rkillrrrclosehszWindowsLoadTracker.closecCsH|jdur"||j||jd||j||jd|_|_dSdS)N)rr)rr_closerrrrr5ls     zWindowsLoadTracker.__del__cCs|jSr4)r rrrr getloadavg{szWindowsLoadTracker.getloadavgN)T)__name__ __module__ __qualname____doc__r_winapiWaitForSingleObjectr SetEventrr QueryValueExr struct unpack_fromrr7 CloseHandler5r:rrrrrs    8 r) r rr?mathrCrSAMPLING_INTERVALexpr r"rrrrrs