o ˜»áfËã@s\ddlZddlZddlZddlZddlZddlZdZde ed¡ZdZ Gdd„dƒZ dS)éNéé<éc@sheZdZdZdd„Zejejfdd„Z e j e j e jfdd„Zdd d „Zejejejfd d „Zd d„ZdS)ÚWindowsLoadTrackerzÞ 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. cCsPt tj¡g|_d|_t dddd¡|_t dddd¡|_t   |j di¡dS)NTF©) ÚwinregÚ QueryInfoKeyÚHKEY_PERFORMANCE_DATAÚ_valuesÚ_loadÚ _overlappedÚ CreateEventÚ_runningÚ_stoppedÚ_threadÚstart_new_threadÚ _update_load©Úselfrrú1/usr/lib/python3.10/test/libregrtest/win_utils.pyÚ__init__s zWindowsLoadTracker.__init__cCs.||jdƒr| ¡||jdƒs||jƒdS)Niè)rÚ_calculate_loadr)rÚ_waitÚ_signalrrrr&s  ÿzWindowsLoadTracker._update_loadcCsè||dƒ\}}|d|dƒ\}|d||ƒ\}}||} ||} | | krC|d|| ƒ\} } } | | 7} | dkr?| | }|d||ƒ\}n| | ks"dS|jdurX|jt|dt|_dSt|jƒtkrg|j |¡dSt|jƒt|jƒ|_dS)NÚ2ÚLéÚ4xLLÚLL28xLé,gð?)r Ú LOAD_FACTOR_1Úlenr ÚNVALUEÚappendÚsum)rÚ_queryÚ_hkeyÚ_unpackÚdataÚ_Ú obj_startÚ data_startÚ defn_startÚ data_baseÚ defn_baseÚsizeÚidxÚoffsetÚcounter_offsetÚprocessor_queue_lengthrrrr0s* ó   ÿz"WindowsLoadTracker._calculate_loadTcCs | ¡dS©N)Ú__del__)rÚkillrrrÚclosehszWindowsLoadTracker.closecCsH|jdur"||jƒ||jdƒ||jƒ||jƒd|_|_dSdS)Néÿÿÿÿ)rr)rrÚ_closerrrrr5ls     øzWindowsLoadTracker.__del__cCs|jSr4)r rrrrÚ getloadavg{szWindowsLoadTracker.getloadavgN)T)Ú__name__Ú __module__Ú __qualname__Ú__doc__rÚ_winapiÚWaitForSingleObjectr ÚSetEventrrÚ QueryValueExr ÚstructÚ unpack_fromrr7Ú CloseHandler5r:rrrrrs  ý  ü 8 ü r) r rr?ÚmathrCrÚSAMPLING_INTERVALÚexpr r"rrrrrÚs