$home/manuals/plan9_2nd/3/reboot

REBOOT(3)                  Library Functions Manual                  REBOOT(3)



NAME
       reboot - reboot CPU after loss of file server connection

SYNOPSIS
       write(cfd, "push reboot", 11);

       fd = open("#â/deltat", OWRITE);
       fprint(fd, "%d", delaytime);

DESCRIPTION
       This is a combined device and stream module (see stream(3)).  The boot‐
       strap program boot(8) pushes the module onto the file server connection
       of a CPU server.  The system will then reboot automatically if the con‐
       nection hangs up.  The reboot may be postponed by  delaytime  millisec‐
       onds  by writing the decimal value of delaytime to Conventionally, this
       is done by /rc/bin/cpurc (see cpurc(8)).  This mechanism may be used to
       cause  the  machines  at a particular site to come up in a fixed order,
       such as after a power failure.

SEE ALSO
       stream(3)

SOURCE
       /sys/src/9/port/devreboot.c



                                                                     REBOOT(3)