o c@slddlmZddlZddlZddlmZmZddlmZddlm Z ddl m Z Gddde Z d d ZdS) )absolute_importN) timedeltadatetime)sysstats) to_timestamp)detect_jiffiesc@s.eZdZdZ  d ddZddZdd ZdS) ProcessInformationaI @param proc_dir: The directory to use for process information. @param jiffies: The value to use for jiffies per second. @param boot_time: An alternate value to use for the last boot time. If None, the system last boot time will be used. @param uptime: The uptime value to use (for unit tests only). /procNcCsH|dur t}|durt|}||_||_|pt|_||_ dS)N) r BootTimesget_last_boot_timerutcfromtimestamp _boot_time _proc_dirr_jiffies_per_sec_uptime)selfproc_dirjiffies boot_timeuptimer7/usr/lib/python3/dist-packages/landscape/lib/process.py__init__s    zProcessInformation.__init__c csLt|jD]}zt|}Wn tyYqw||}|r#|VqdS)z8Get process information for all processes on the system.N)oslistdirrint ValueErrorget_process_info)rfilename process_id process_inforrrget_all_process_info s   z'ProcessInformation.get_all_process_infocCsd}tj|jt|}d|i}zttj|dd}z|}tj|dd}W| n| wttj|dd}z|D]y}|dd }|dd kr_| p[|d  |d <qD|dd kr}|d  } | d krs| } | d d|d<qD|ddkr|d } t | d|d<qD|ddkr|d } t | d|d<qD|ddkr|d } t | d|d<nqDW| n| wttj|dd}zV|}t |d} t |d} t |d} |jpt}t| | || |j}||d<td| |j}|jdurtdW| WdSt|j||d<W| n| wWn ty;YdSwd|vrZd|vrZd |vrZd|vrZd|vrZd|vs\J|S)a Parse the /proc//cmdline and /proc//status files for information about the running process with process_id. The /proc filesystem doesn't behave like ext2, open files can disappear during the read process. pidcmdlinerrstatus:NamenameStatezT (tracing stop)asciistateUiduidGidgidVmSizezvm-sizestat z percent-cpuNz,Skipping process (PID %s) without boot time.z start-time)rpathjoinrstropenreadlinebasenamesplitclosestriplowerencoderreadrr get_uptimecalculate_pcpurrr loggingwarningrIOError)rr cmd_line_name process_dirr filecmd_linelinepartsr. value_parts start_timeutimestimerpcpudeltarrrr+s                z#ProcessInformation.get_process_info)r NNN)__name__ __module__ __qualname____doc__rr!rrrrrr s  rcCsBd}||}|||}|r|d||}ttt|dddS)ao Implement ps' algorithm to calculate the percentage cpu utilisation for a process.:: unsigned long long total_time; /* jiffies used by this process */ unsigned pcpu = 0; /* scaled %cpu, 99 means 99% */ unsigned long long seconds; /* seconds of process life */ total_time = pp->utime + pp->stime; if(include_dead_children) total_time += (pp->cutime + pp->cstime); seconds = seconds_since_boot - pp->start_time / hertz; if(seconds) pcpu = (total_time * 100ULL / hertz) / seconds; if (pcpu > 99U) pcpu = 99U; return snprintf(outbuf, COLWID, "%2u", pcpu); rdgX@r))roundmaxmin)rQrRrrPhertzrS total_timesecondsrrrrEs  rE) __future__rrFrrr landscape.librlandscape.lib.timestamprlandscape.lib.jiffiesrobjectrrErrrrs     z