o eP@sddlZddlZddlZddlZddlZddlZddlZddlZddl Zddl Zddl Zddl Zej dkr>ddlZddlZnddlmZddlmZddlZddlZddlZejdZdadadadadadadada da!da"ddZ#d d Z$d d Z%d dZ&ddZ'ddZ(ddZ)ddZ*ddZ+ddZ,ddZ-ddZ.dd Z/d!d"Z0d#d$Z1d%d&Z2d'd(Z3d)d*Z4d+d,Z5d-d.Z6d/d0Z7d1d2Z8d3d4Z9d5d6Z:d7d8Z;d9d:Ztj}|dkrt|dt|dt|ddSdS)zClose stdin, stdout, stderr. If we're started from e.g. an SSH session, then this keeps us from holding that session open artificially.rr%N)rr get_null_fdr/dup2)null_fdrrr_close_standard_fdss   rcCsrtrtdkr tdtjdkrttr0t}t}|dkr0t |tjdkr,t t |t r7t dSdS)aIIf daemonization is configured, then starts daemonization, by forking and returning in the child process. The parent process hangs around until the child lets it know either that it completed startup successfully (by calling daemon_complete()) or that it failed to start up (by exiting with a nonzero exit code).rrN)rrir(r+r1r/setsidr"rrrrrrR)saved_daemonize_fdrrrrrSs      rScCs(tttrtr tdtdSdS)zIf daemonization is configured, then this function notifies the parent process that the child process has completed startup successfully./N)rrrrr/chdirrrrrrrTs   rTcCs tjdtjjtjjfdS)Nz Daemon options: --detach run in background as daemon --no-chdir do not chdir to '/' --pidfile[=FILE] create pidfile (default: %s/%s.pid) --overwrite-pidfile with --pidfile, start even if already running )r(ror*rrrr r rrrrusages rcCstdur$zt|}|jtkr|jtkrtWSWn ty#Ynwzt|d}Wn/t yZ}z#|j t j krB|rBWYd}~dSt d||jf|j WYd}~Sd}~wwzt|tjtjB|sx|t d|t j WSzd}t|}t|}|j|jks|j|jkrd}Wn t yd}Ynw|rt d|t j WSzt|Wn!t y}zt d||jf|j WYd}~WSd}~wwt d ||WdSt y}z$|j t jt jfvr t d ||jf|j WYd}~SWYd}~nd}~wwzQzt|}Wn5t yB}zt d ||jf|j }WYd}~nd}~wtyVt d |t j }Ynw|Wz|WSt yiYSwz|Wwt yzYww) Nzr+rz %s: open: %sz%s: pid file is staleFTz%s: lost race to delete pidfilez'%s: failed to delete stale pidfile (%s)z%s: deleted stale pidfilez %s: fcntl: %sz %s: read: %sz%s does not contain a pid) rJr/statrKrLrIr0r;r4r6rDENOENTr&rr7r<r=r>r?r\ESRCHr8r9EALREADYunlinkdbgEACCESEAGAINrreadline ValueErrorEINVAL)pidfiledelete_if_stalerPr5rOraceds2rQrrr__read_pidfiles           rcCs t|dS)ztOpens and reads a PID from 'pidfile'. Returns the positive PID if successful, otherwise a negative errno value.F)r)rrrr read_pidfileOs rcCsLttd}|dkrtdt|fdS|dkr$tdtt|fdSdS)NTrz'%s: already running as pid %d, abortingz'%s: pidfile check failed (%s), aborting)rrr-r/r7)rMrrrrFUs   rFcCstd}|jdd}|jdddd|jddd d|jd dd tjjd|jd d |d|d|jddddtjdkrG|jddddSdS)zPopulates 'parser', an ArgumentParser allocated using the argparse module, with the command line arguments required by the daemon module.NzDaemon Options)titlez--detach store_truezRun in background as a daemon.)actionhelpz --no-chdirzDo not chdir to '/'.z --monitorzMonitor %s process.z --pidfile?zCreate pidfile (default %s).)nargsconstrz--overwrite-pidfilez.With --pidfile, start even if already running.rz --pipe-handle)r)radd_argument_group add_argumentrr r r(r1)parserrgrouprrradd_args^s,     rcCsbtjdkr |jr t|j|jrt|jrt|jr!t |j|j r't |j r/t dSdS)zHandles daemon module settings in 'args'. 'args' is an object containing values parsed by the parse_args() method of ArgumentParser. The parent ArgumentParser should have been prepared by add_args() before calling parse_args().rN)r(r1 pipe_handler detachrno_chdirrrroverwrite_pidfilermonitorr#)rkrrr handle_argsus    r)>rDr/rr(rovs.dirsrovs.fatal_signal ovs.processovs.socket_util ovs.timevalovs.utilovs.vlogr1r<r ovs.winutilsrq ovs.fcntl_win fcntl_winrsryrtr&VlogrrrrJrLrrr"rrrrrrrr r!r#r-rRrUrXrirYrrrrrrSrTrrrrFrrrrrrst        T 96  /   Q