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("#^/deltat", OWRITE);
fprint(fd, "%d", delaytime);
DESCRIPTION
This is a combined device and stream module (see stream(3)). The bootstrap program boot(8) pushes the module onto the file server connec-
tion of a CPU server. The system will then reboot automatically if the connection hangs up. The reboot may be postponed by delaytime mil-
liseconds 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)
