REBOOT
Section: Linux Programmer's Manual
(2)
Updated: 24 September 1998
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À̸§
reboot - Àç½ÃÀÛ È¤Àº Ctrl-Alt-DelÀÇ »ç¿ë/»ç¿ë¾ÈÇÔ
»ç¿ë¹ý
libc4°úlibc5¿¡°Ô ¶óÀ̺귯¸® È£Ãâ°ú ½Ã½ºÅÛ È£ÃâÀº µ¿ÀϽà µÇ°í, Ä¿³Î ¹öÀü 2.1.30ÀÌÈķΠȣÃâÀ» À§ÇÑ »ó¼ö¿Í ³×¹ø° µ¶¸³º¯¼ö·Î¼ symbolic names LINUX_REBOOT_*°¡ ÀÖ´Ù:
#include <unistd.h>
#include <linux/reboot.h>
int reboot (int magic, int magic2, int flag, void *arg);
glibcÇÏ¿¡¼ ¾î¶² º¹ÀâÇÑ »ó¼ö´Â symbolic names RB_*¸¦ °¡Áö°í, ¶óÀ̺귯¸® È£ÃâÀº 3-µµ¸³º¯¼ö ½Ã½ºÅÛ È£Ãâ ÁÖº¯¿¡ 1-argument wrapperÀÌ´Ù:
#include <unistd.h>
#include <sys/reboot.h>
int reboot (int flag);
¼³¸í
reboot
È£ÃâÀº ½Ã½ºÅÛÀ» Àç½ÃÀÛÇϰųª, Àç½ÃÀÛ Å°ÀÔ·ÂÀ» °¡´É/ºÒ°¡´É ÇÏ°Ô ÇÑ´Ù.
(°£°áÇÏ°Ô µÈ CAD, µðÆúÆ®´Â Ctrl-Alt-DeleteÀ̱⠶§¹®¿¡;
loadkeys(1)).
»ç¿ëÀ¸·Î ¹Ù²Ü ¼ö ÀÖ´Ù.
ÀÌ ½Ã½ºÅÛ È£ÃâÀº(EINVAL¿Í ÇÔ²²)
magic
°¡ LINUX_REBOOT_MAGIC1 (ÀÌ°ÍÀº 0xfee1dead)¿Í °°°í
magic2
°¡ LINUX_REBOOT_MAGIC2 (ÀÌ°ÍÀº 672274793)¿Í °°Áö ¾ÊÀ¸¸é ½ÇÆÐÇÒ ¼ö ÀÖ´Ù.
ÇÏÁö¸¸, 2.1.17ÀÌÈÄÀÇ LINUX_REBOOT_MAGIC2A (ÀÌ°ÍÀº 85072278)¿Í
2.1.97ÀÌÈÄÀÇ LINUX_REBOOT_MAGIC2B (ÀÌ°ÍÀº 369367448)Àº
magic2.
ÀÇ °ªÀ¸·Î ¿©°ÜÁø´Ù.(ÀÌ »ó¼öÀÇ 16Áø¼ö °ªÀº Àǹ̽ÉÀåÇÑ °ÍÀÌ´Ù.)
flag
µ¶¸³º¯¼ö´Â ¾Æ·¡¿Í °°Àº °ªÀ» °¡Áú ¼ö ÀÖ´Ù:
- LINUX_REBOOT_CMD_RESTART
-
(RB_AUTOBOOT, 0x1234567).
`Restarting system' (½Ã½ºÅÛ Àç½ÃÀÛ) ¸Þ½ÃÁö°¡ Ãâ·ÂµÈ´Ù. ±×¸®°í µðÆúÆ® Àç½ÃÀÛÀÌ °ð ½ÇÇàµÈ´Ù.
sync(2)
°¡ ¼±ÇàµÇÁö ¾ÊÀ¸¸é, ÀÚ·á°¡ »ç¶óÁø´Ù.
- LINUX_REBOOT_CMD_HALT
-
(RB_HALT_SYSTEM, 0xcdef0123; since 1.1.76).
stem halted'(½Ã½ºÅÛ Á¤Áö) ¸Þ½ÃÁö¸¦ Ãâ·ÂµÈ´Ù. ±×¸®°í ½Ã½ºÅÛÀÌ ¸ØÃá´Ù.
Çϳª ÀÖ´Ù¸é, Á¦¾î´Â ROM ¸ð´ÏÅÍ¿¡°Ô ³Ñ¾î°£´Ù.
sync(2)
°¡ ¼±ÇàµÇÁö ¾ÊÀ¸¸é ÀÚ·á°¡ »ç¶óÁø´Ù.
- LINUX_REBOOT_CMD_POWER_OFF
-
(0x4321fedc; since 2.1.30).
`Power down'(Àü¿ø ²¨Áü) ¸Þ½ÃÁö°¡ Ãâ·ÂµÈ´Ù. ±×¸®°í ½Ã½ºÅÛÀÌ ¸ØÃß°í,
°¡´ÉÇÏ¸é ½Ã½ºÅÛÀÇ ¸ðµç ÆÄ¿ö°¡ »ç¶óÁø´Ù.
sync(2)
°¡ ¼±ÇàµÇÁö ¾ÊÀ¸¸é ÀÚ·á°¡ »ç¶óÁø´Ù.
- LINUX_REBOOT_CMD_RESTART2
-
(0xa1b2c3d4; since 2.1.30).
`Restarting system with command '%s''¸Þ½ÃÁö°¡ Ãâ·ÂµÇ°í °ð Àç½ÃÀÛ ÇÑ´Ù.
(.IR arg
¿¡ ÀÖ´Â ¸í·É ¹®ÀÚ¿ÀÌ »ç¿ëµÈ´Ù.)
sync(2)
°¡ ¼±ÇàµÇÁö ¾ÊÀ¸¸é, ÀÚ·á°¡ »ç¶óÁø´Ù.
- LINUX_REBOOT_CMD_CAD_ON
-
(RB_ENABLE_CAD, 0x89abcdef).
CAD °¡ °¡´ÉÇØÁø´Ù.
ÀÌ°ÍÀº CAD Å° ÀԷ¿¡ ÀÇÇØ Áï½Ã LINUX_REBOOT_CMD_RESTART¿Í
°ü·ÃµÈ ÀÛµ¿ÀÌ ÀϾٴ °ÍÀ» ¶æÇÑ´Ù.
- LINUX_REBOOT_CMD_CAD_OFF
-
(RB_DISABLE_CAD, 0).
CAD¸¦ »ç¿ëÇÏÁö ¾Ê´Â´Ù.
ÀÌ°ÍÀº CAD Å° ÀÔ·ÂÀÌ init (process 1)¿¡ º¸³»Áö´Â SIGINT ½ÅÈ£¸¦ ¹ß»ý½ÃŲ´Ù.
±×·¡¼ ÇÁ·Î¼¼½º´Â °íÀ¯ÀÇ ¿ªÇÒÀ» °áÁ¤ÇÑ´Ù.(¾Æ¸¶: ¸ðµç ÇÁ·Î¼¼½º Áß´Ü. sync, Àç½ÃÀÛ)
½´ÆÛ À¯Àú¸¸ÀÌ ÀÌ ÇÔ¼ö¸¦ »ç¿ëÇÒ ¼ö ÀÖ´Ù.
À§ÀÇ ÀÛµ¿ÀÌ Á¤È®ÇÑ È¿°ú¸¦ ³ªÅ¸³»´Â °ÍÀº ±¸Á¶¿¡ ´Þ·Á ÀÖ´Ù.
i386 ±¸Á¶¿¡¼. Ãß°¡ µ¶¸³º¯¼ö´Â ÇöÀç(2.1.122) ¾Æ¹«·± ÀÛ¿ëµµ ÇÏÁö ¾Ê´Â´Ù.
ÇÏÁö¸¸ Ä¿³Î ¸í·É ¶óÀÎ µ¶¸³º¯¼ö¿¡ ÀÇÇØ Àç½ÃÀÛÀÇ Å¸ÀÔÀÌ warm ºÎÆà ȤÀº
cold ºÎÆÃÀ¸·Î °áÁ¤ µÉ ¼ö ÀÖ´Ù.
¹Ýȯ°ª
¼º°ø½Ã, 0ÀÌ ¹ÝȯµÈ´Ù. ¿¡·¯ ½Ã, -1ÀÌ ¹ÝȯµÇ°í,
errno
´Â ÀûÀýÈ÷ ¼³Á¤µÈ´Ù.
¿¡·¯
- EINVAL
-
ºÎÀû´çÇÑ ¸ÅÁ÷ ³Ñ¹ö ȤÀº flag.
- EPERM
-
·çÆ® »ç¿ëÀÚ°¡ ¾Æ´Ñ »ç¶÷ÀÌ
reboot.
¸¦ È£ÃâÇÏ·Á ÇÏ¿´´Ù.
ȣȯ
reboot
´Â ¸®´ª½º¿¡ ƯȵǾî ÀÖÀ¸¹Ç·Î À̽ÄÀ» ¸ñÀûÀ¸·Î ÇÏ´Â ÇÁ·Î±×·¥¿¡¼± »ç¿ëÇÏ¸é ¾ÈµÈ´Ù.
°ü·Ã Ç׸ñ
sync(2),
bootparam(7),
ctrlaltdel(8),
halt(8),
reboot(8)
¿ªÀÚ
ASPLINUX<man@asp-linux.co.kr>, 2000³â 7¿ù 31
Index
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