1 .\" Copyright (c) 2008, Linux Foundation, written by Michael Kerrisk
2 .\" <mtk.manpages@gmail.com>
4 .\" Permission is granted to make and distribute verbatim copies of this
5 .\" manual provided the copyright notice and this permission notice are
6 .\" preserved on all copies.
8 .\" Permission is granted to copy and distribute modified versions of this
9 .\" manual under the conditions for verbatim copying, provided that the
10 .\" entire resulting derived work is distributed under the terms of a
11 .\" permission notice identical to this one.
13 .\" Since the Linux kernel and libraries are constantly changing, this
14 .\" manual page may be incorrect or out-of-date. The author(s) assume no
15 .\" responsibility for errors or omissions, or for damages resulting from
16 .\" the use of the information contained herein. The author(s) may not
17 .\" have taken the same level of care in the production of this manual,
18 .\" which is licensed free of charge, as they might when working
21 .\" Formatted or processed versions of this manual, if unaccompanied by
22 .\" the source, must acknowledge the copyright and authors of this work.
24 .\" Japanese Version Copyright (c) 2008 Akihiro MOTOKI
25 .\" all rights reserved.
26 .\" Translated 2008-08-21, Akihiro MOTOKI <amotoki@dd.iij4u.or.jp>, LDP v3.04
28 .TH CLOCK_NANOSLEEP 2 2010-09-10 "Linux" "Linux Programmer's Manual"
30 clock_nanosleep \- »ØÄꤷ¤¿¥¯¥í¥Ã¥¯¤Ç¤Î¹âÀºÅ٤ʼ¹ÔÄä»ß (sleep)
35 .BI "int clock_nanosleep(clockid_t " clock_id ", int " flags ,
36 .BI " const struct timespec *" request ,
37 .BI " struct timespec *" remain );
40 \fI\-lrt\fP ¤Ç¥ê¥ó¥¯¤¹¤ë¡£
44 glibc ¸þ¤±¤Îµ¡Ç½¸¡ºº¥Þ¥¯¥í¤ÎÍ×·ï
45 .RB ( feature_test_macros (7)
49 .BR clock_nanosleep ():
51 _XOPEN_SOURCE\ >=\ 600 || _POSIX_C_SOURCE\ >=\ 200112L
55 .BR clock_nanosleep ()
58 ƱÍÍ¡¢¥Ê¥ÎÉäÎÀºÅ٤ǻØÄꤵ¤ì¤¿´ü´Ö¤À¤±¸Æ¤Ó½Ð¤·¤¿¥¹¥ì¥Ã¥É¤Î¼Â¹Ô¤ò
59 Ää»ß¤¹¤ë¤³¤È¤¬¤Ç¤¤ë¡£
61 ¤È°ã¤¦¤Î¤Ï¡¢¸Æ¤Ó½Ð¤·Â¦¤¬Ää»ß´ü´Ö¤ò¤É¤Î¥¯¥í¥Ã¥¯¤ËÂФ·¤Æ·×¬¤¹¤ë¤Î¤«¤òÁªÂò
62 ¤Ç¤¤ëÅÀ¤È¡¢Ää»ß´ü´Ö¤òÀäÂÐÃͤǤâÁêÂÐÃͤǤâ»ØÄê¤Ç¤¤ëÅÀ¤Ç¤¢¤ë¡£
64 ¤³¤Î¥·¥¹¥Æ¥à¥³¡¼¥ë¤ËÅϤ·¤¿¤ê¡¢¤³¤Î¥·¥¹¥Æ¥à¥³¡¼¥ë¤¬ÊÖ¤·¤¿¤ê¤¹¤ë»þ´Ö¤ÎÃͤÏ
66 ¹½Â¤ÂΤò»È¤Ã¤Æ»ØÄꤵ¤ì¤ë¡£¤³¤Î¹½Â¤ÂΤÎÄêµÁ¤Ï°Ê²¼¤ÎÄ̤ê¤Ç¤¢¤ë¡£
71 time_t tv_sec; /* seconds */
72 long tv_nsec; /* nanoseconds [0 .. 999999999] */
78 °ú¤¿ô¤Ç¡¢Ää»ß´ü´Ö¤ò¤É¤Î¥¯¥í¥Ã¥¯¤ËÂФ·¤Æ·×¬¤¹¤ë¤«¤ò»ØÄꤹ¤ë¡£
79 ¤³¤Î°ú¤¿ô¤Ë¤Ï°Ê²¼¤ÎÃͤΤ¤¤º¤ì¤«°ì¤Ä¤ò»ØÄê¤Ç¤¤ë¡£
82 ¥·¥¹¥Æ¥àÁ´ÂΤǻȤï¤ì¤ë¼Â»þ´Ö¥¯¥í¥Ã¥¯¡£
83 ¤³¤Î¥¯¥í¥Ã¥¯¤ÏÊѹ¹²Äǽ¤Ç¤¢¤ë¡£
86 ²áµî¤Î¤¢¤ë»þÅÀ¤«¤é¤Î»þ´Ö¤ò·×¬¤¹¤ë¡¢Ã±Ä´Áý²Ã¤Î¥¯¥í¥Ã¥¯¡£
87 µ¯ÅÀ¤È¤Ê¤ë»þÅÀ¤Ï¥·¥¹¥Æ¥àµ¯Æ°¸å¤Ë¤ÏÊѹ¹¤µ¤ì¤Ê¤¤¡£
88 ¤³¤Î¥¯¥í¥Ã¥¯¤ÏÊѹ¹¤¹¤ë¤³¤È¤¬¤Ç¤¤Ê¤¤¡£
89 .\" Linux ¤Ç¤Ï¡¢¤³¤Î¥¯¥í¥Ã¥¯¤Ïµ¯Æ°¤«¤é¤Î»þ´Ö¤ò·×¬¤¹¤ë¡£
91 .BR CLOCK_PROCESS_CPUTIME_ID
92 ¤½¤Î¥×¥í¥»¥¹¤ÎÁ´¥¹¥ì¥Ã¥É¤Ç¾ÃÈñ¤µ¤ì¤ë CPU »þ´Ö¤ò·×¬¤¹¤ë¥×¥í¥»¥¹Ã±°Ì¤Î
93 ¥¯¥í¥Ã¥¯¡£¤³¤Î¥¯¥í¥Ã¥¯¤ÏÀßÄê²Äǽ¤Ç¤¢¤ë¡£
94 .\" There is some trickery between glibc and the kernel
95 .\" to deal with the CLOCK_PROCESS_CPUTIME_ID case.
97 ¤³¤ì¤é¤Î¥¯¥í¥Ã¥¯¤Î¾ÜºÙ¤Ë¤Ä¤¤¤Æ¤Ï
106 ¤Ç»ØÄꤵ¤ì¤¿¥¯¥í¥Ã¥¯¤Î¸½ºß¤ÎÃͤ«¤é¤ÎÁêÂÐŪ¤Ê´ü´Ö¤È²ò¼á¤µ¤ì¤ë¡£
113 ¤Ï»ØÄꤵ¤ì¤¿¥¯¥í¥Ã¥¯¤Ç·×¬¤µ¤ì¤ëÀäÂлþ¹ï¤È²ò¼á¤µ¤ì¤ë¡£
115 ¤¬»ØÄꤵ¤ì¤¿¥¯¥í¥Ã¥¯¤Î¸½ºß¤ÎÃͰʲ¼¤Î¾ì¹ç¡¢
116 .BR clock_nanosleep ()
117 ¤Ï¡¢¸Æ¤Ó½Ð¤·¤¿¥¹¥ì¥Ã¥É¤ÎÄä»ß¤ò¹Ô¤ï¤º¡¢¤¹¤°¤ËÊ֤롣
119 .BR clock_nanosleep ()
122 ¤Ç»ØÄꤵ¤ì¤¿»þ´Ö¤¬·Ð²á¤¹¤ë¤Þ¤Ç¡¢¸Æ¤Ó½Ð¤·¤¿¥¹¥ì¥Ã¥É¤Î¼Â¹Ô¤òÄä»ß¤¹¤ë¡£
123 ¥·¥°¥Ê¥ë¥Ï¥ó¥É¥é¤¬¸Æ¤Ó½Ð¤µ¤ì¤¿¤ê¡¢¤½¤Î¥×¥í¥»¥¹¤ò½ªÎ»¤µ¤»¤ë¤è¤¦¤Ê
124 ¥·¥°¥Ê¥ë¤¬ÇÛÁ÷¤µ¤ì¤¿¤ê¤·¤¿¾ì¹ç¤Ë¤â¡¢¥¹¥ì¥Ã¥É¤Î¼Â¹ÔÄä»ß¤Ï½ªÎ»¤¹¤ë¡£
126 ¸Æ¤Ó½Ð¤·¤¬¥·¥°¥Ê¥ë¥Ï¥ó¥É¥é¤Ë¤è¤Ã¤Æ³ä¤ê¹þ¤Þ¤ì¤¿¾ì¹ç¡¢
127 .BR clock_nanosleep ()
138 ¤Ë»Ä¤ê¤ÎÄä»ß»þ´Ö¤¬ÊÖ¤µ¤ì¤ë¡£
140 .BR clock_nanosleep ()
141 ¤òºÆÅٸƤӽФ¹¤³¤È¤Ç¡¢(ÁêÂÐŪ¤Ê´ü´Ö¤Î) Ää»ß¤ò´°Î»¤¹¤ë¤³¤È¤¬¤Ç¤¤ë¡£
143 Í׵ᤵ¤ì¤¿´ü´Ö¤ÎÄä»ß¤ËÀ®¸ù¤¹¤ë¤È¡¢
144 .BR clock_nanosleep ()
146 ¥·¥°¥Ê¥ë¥Ï¥ó¥É¥é¤Ç³ä¤ê¹þ¤Þ¤ì¤¿¤ê¡¢¥¨¥é¡¼¤¬È¯À¸¤·¤¿¤ê¤·¤¿¾ì¹ç¡¢
147 ¡Ö¥¨¥é¡¼¡×¤ÎÀá¤Î¥ê¥¹¥È¤Ë¤¢¤ëÀµ¤Î¥¨¥é¡¼ÈÖ¹æ¤Î¤¤¤º¤ì¤«°ì¤Ä¤òÊÖ¤¹¡£
154 ¤Ë̵¸ú¤Ê¥¢¥É¥ì¥¹¤¬»ØÄꤵ¤ì¤¿¡£
157 Ää»ß¤¬¥·¥°¥Ê¥ë¥Ï¥ó¥É¥é¤Ë¤è¤ê³ä¤ê¹þ¤Þ¤ì¤¿¡£
161 ¥Õ¥£¡¼¥ë¥É¤ÎÃͤ¬ 0 ¤«¤é 999999999 ¤ÎÈϰϤǤʤ¤¤«¡¢
168 .RB ( CLOCK_THREAD_CPUTIME_ID
171 ¤È¤·¤Æ͸ú¤ÊÃͤǤϤʤ¤)¡£
173 .BR clock_nanosleep ()
174 ¥·¥¹¥Æ¥à¥³¡¼¥ë¤Ï Linux 2.6 ¤Ç½é¤á¤ÆÅо줷¤¿¡£
175 glibc ¤Ç¤Ï¥Ð¡¼¥¸¥ç¥ó 2.1 °Ê¹ß¤Ç¥µ¥Ý¡¼¥È¤µ¤ì¤Æ¤¤¤ë¡£
180 ¤Ç»ØÄꤵ¤ì¤¿Ää»ß´ü´Ö¤¬¡¢»þ´Ö¤Î·×¬¤Ë»ÈÍѤµ¤ì¤ë¥¯¥í¥Ã¥¯
182 »²¾È) ¤ÎÀºÅÙ¤ÎÇÜ¿ô¤Á¤ç¤¦¤É¤Ç¤Ê¤¤¾ì¹ç¡¢Ää»ß´ü´Ö¤Ï°ìÈֶᤤ¼¡¤ÎÇÜ¿ô¤Ë
183 ÀÚ¤ê¾å¤²¤é¤ì¤ë¡£¤µ¤é¤Ë¡¢Ää»ß¤¬´°Î»¤·¤¿¸å¤Ë¡¢CPU ¤¬¸Æ¤Ó½Ð¤·¤¿¥¹¥ì¥Ã¥É¤ò
184 ¤â¤¦°ìÅټ¹ԤǤ¤ë¤è¤¦¤Ë¤Ê¤ë¤Þ¤Ç¤Ë¤Ï¡¢Ãٱ䤬Æþ¤ë²ÄǽÀ¤¬¤¢¤ë¡£
186 ÀäÂÐÃÍ»ØÄê¤Î¥¿¥¤¥Þ¤ò»È¤¦¤Î¤Ï¡¢
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189 (¤³¤Î¼ï¤ÎÌäÂê¤Ï¡¢¥·¥°¥Ê¥ë¤Ë³ä¤ê¹þ¤Þ¤ì¤¿ºÝ¤ËÁêÂлØÄê¤ÎÄä»ß¤ò
190 ·«¤êÊÖ¤·ºÆ³«¤·¤è¤¦¤È¤¹¤ë¥×¥í¥°¥é¥à¤Ç¤Ï¡¢¤«¤¨¤Ã¤Æ°²½¤¹¤ë)¡£
191 ¤³¤ì¤é¤ÎÌäÂê¤ò²óÈò¤·¤ÆÁêÂлØÄê¤ÎÄä»ß¤ò¼Â¹Ô¤¹¤ë¤Ë¤Ï¡¢
193 .BR clock_gettime (2)
194 ¤ò¸Æ¤Ó½Ð¤·¡¢¤½¤ÎÊÖ¤êÃͤλþ¹ïÃͤ˴õ˾¤¹¤ë´ü´Ö¤ò²Ã»»¤·¤Æ¤«¤é¡¢
197 .BR clock_nanosleep ()
203 ¥Õ¥é¥°¤¬»ØÄꤵ¤ì¤Æ¤¤¤ë¤«¤Ë´Ø¤ï¤é¤º¡¢
204 ¥·¥°¥Ê¥ë¥Ï¥ó¥É¥é¤Ë¤è¤ê³ä¤ê¹þ¤Þ¤ì¤¿¸å¤Ë
205 .BR clock_nanosleep ()
206 ¤¬ºÆ³«¤µ¤ì¤ë¤³¤È¤Ï·è¤·¤Æ¤Ê¤¤¡£
213 °ú¤¿ô¤Ï»ÈÍѤµ¤ì¤º¡¢ÉÔÍפǤ¢¤ë
214 (ÀäÂÐÃͤǤÎÄä»ß¤Ç¤Ï¡¢Æ±¤¸
216 °ú¤¿ô¤ò»È¤Ã¤ÆºÆÅٸƤӽФ¹¤³¤È¤¬¤Ç¤¤ë)¡£
219 .BR clock_nanosleep ()
220 ¤Ï¥·¥°¥Ê¥ë¤Î½èÍýÊýË¡¤ä¥·¥°¥Ê¥ë¥Þ¥¹¥¯¤Ë±Æ¶Á¤òÍ¿¤¨¤Ê¤¤¡¢¤È¤µ¤ì¤Æ¤¤¤ë¡£
223 .BR clock_settime (2)
226 ¥¯¥í¥Ã¥¯¤ÎÃͤòÊѹ¹¤·¤¿¸å¤Ï¡¢ÀäÂÐÃÍ»ØÄê¤Î
227 .BR clock_nanosleep ()
228 ¤ÇÄä»ß¤·¤Æ¤¤¤ë¥¹¥ì¥Ã¥É¤òµ¯Æ°¤µ¤»¤ë»þ¹ï¤ÎȽÄê¤Ï¡¢
229 ¿·¤·¤¤¥¯¥í¥Ã¥¯Ãͤò»È¤Ã¤Æ¹Ô¤ï¤ì¤ë¡¢¤È¤µ¤ì¤Æ¤¤¤ë¡£
230 ¿·¤·¤¤¥¯¥í¥Ã¥¯Ãͤˤª¤¤¤ÆÄä»ß´ü´Ö¤Î½ªÎ»»þ¹ï¤¬²áµî¤Ë¤Ê¤Ã¤Æ¤·¤Þ¤Ã¤¿¾ì¹ç¤Ë¤Ï¡¢
231 .BR clock_nanosleep ()
232 ¤Ï¤¹¤°¤ËÊ֤뤳¤È¤Ë¤Ê¤ë¡£
235 .BR clock_settime (2)
238 ¥¯¥í¥Ã¥¯¤ÎÃͤòÊѹ¹¤·¤Æ¤â¡¢ÁêÂÐÃÍ»ØÄê¤Î
239 .BR clock_nanosleep ()
240 ¤ÇÄä»ß¤·¤Æ¤¤¤ë¥¹¥ì¥Ã¥É¤Ë¤Ï±Æ¶Á¤òÍ¿¤¨¤Ê¤¤¡¢¤È¤µ¤ì¤Æ¤¤¤ë¡£
242 .BR clock_getres (2),
244 .BR timer_create (2),