Man page or keyword search:   man All Sections 1 - General Commands 2 - System Calls 3 - Subroutines, Functions 4 - Special Files 5 - File Formats 6 - Games and Screensavers 7 - Macros and Conventions 8 - Maintenence Commands 9 - Kernel Interface New Commands Server 4.4BSD AIX Alpinelinux Archlinux Aros BSDOS BSDi Bifrost CentOS Cygwin Darwin Debian DigitalUNIX DragonFly ElementaryOS Fedora FreeBSD Gentoo GhostBSD HP-UX Haiku Hurd IRIX Inferno JazzOS Kali Knoppix LinuxMint MacOSX Mageia Mandriva Manjaro Minix MirBSD NeXTSTEP NetBSD OPENSTEP OSF1 OpenBSD OpenDarwin OpenIndiana OpenMandriva OpenServer OpenSuSE OpenVMS Oracle PC-BSD Peanut Pidora Plan9 QNX Raspbian RedHat Scientific Slackware SmartOS Solaris SuSE SunOS Syllable Tru64 UNIXv7 Ubuntu Ultrix UnixWare Xenix YellowDog aLinux   9087 pages apropos Keyword Search (all sections) Output format html ascii pdf view pdf save postscript

CPU_REBOOT(9)		 BSD Kernel Developer's Manual		 CPU_REBOOT(9)

NAME
     cpu_reboot — halt or reboot the system

SYNOPSIS
     #include <sys/reboot.h>

     void
     cpu_reboot(int howto, char *bootstr);

DESCRIPTION
     The cpu_reboot() function handles final system shutdown, and either halts
     or reboots the system.  The exact action to be taken is determined by the
     flags passed in howto and by whether or not the system has finished auto‐
     configuration.

     If the system has finished autoconfiguration, cpu_reboot() does the fol‐
     lowing:

	   1.	Sets the boothowto system variable (see boothowto(9)) from the
		howto argument.

	   2.	If this is the first invocation of cpu_reboot() and the
		RB_NOSYNC flag is not set in howto, syncs and unmounts the
		system disks by calling vfs_shutdown(9) and sets the time of
		day clock by calling resettodr(9).

	   3.	Disables interrupts.

	   4.	If rebooting after a crash (i.e., if RB_DUMP is set in howto,
		but RB_HALT is not), saves a system crash dump.

	   5.	Runs any shutdown hooks by calling pmf_system_shutdown(9).

	   6.	Prints a message indicating that the system is about to be
		halted or rebooted.

	   7.	If RB_HALT is set in howto, halts the system.  Otherwise,
		reboots the system.

     If the system has not finished autoconfiguration, cpu_reboot() runs any
     shutdown hooks by calling pmf_system_shutdown(9), prints a message, and
     halts the system.

     If RB_STRING is set in howto, then the parameter bootstr is passed to the
     system boot loader on some ports.

SEE ALSO
     boothowto(9), dumpsys(9), pmf_system_shutdown(9), resettodr(9),
     vfs_shutdown(9)

BSD			       February 11, 2010			   BSD

                             _         _         _ 
                            | |       | |       | |     
                            | |       | |       | |     
                         __ | | __ __ | | __ __ | | __  
                         \ \| |/ / \ \| |/ / \ \| |/ /  
                          \ \ / /   \ \ / /   \ \ / /   
                           \   /     \   /     \   /    
                            \_/       \_/       \_/ 

Vote for polarhome