reboot.2

Unix操作系统minix 2.0源码

.TH REBOOT 2
.SH NAME
reboot \- close down the system or reboot
.SH SYNTAX
.ft B
.nf
#define _MINIX_SOURCE 1

#include <unistd.h>

int reboot(int \fIhow\fP, ...)
.fi
.ft P
.SH DESCRIPTION
.B Reboot()
is used to close down the system.  It allows several ways of shutting
down depending on
.IR how :
.PP
.TP 5
.BI "reboot(RBT_HALT)"
Halt the system and return to the monitor prompt.
.TP
.BI "reboot(RBT_REBOOT)"
Reboot the system by letting the monitor execute the "boot" command.
.TP
.BI "reboot(RBT_PANIC)"
Cause a system panic.  This is not normally done from user mode, but by
servers using the
.B sys_abort()
kernel call.
.TP
.BI "reboot(RBT_MONITOR" ", code, length" ")"
Halt the system and let the monitor execute the given code of the given
length.
.RI ( code
is of type
.B "char *"
and
.I length
of type
.BR size_t .)
.TP
.BI "reboot(RBT_RESET)"
Reboot the system with a hardware reset.
.PP
.B Reboot()
may only be executed by the super-user.
.SH DIAGNOSTICS
If the call succeeds, it never returns.  If something went wrong,
the return value is -1 and an error is indicated by
.BR errno .
.SH SEE ALSO
.BR shutdown (8),
.BR reboot (8),
.BR halt (8),
.BR sync (1).
.SH NOTES
Minix can not return to the monitor if running in real mode, or if started
from MS-DOS.  This means that most of the reboot functions will change
to a reset.
.SH AUTHOR
Edvard Tuinder ([e-mail])