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Diffstat (limited to 'td.h>q')
| -rw-r--r-- | td.h>q | 53 |
1 files changed, 53 insertions, 0 deletions
@@ -0,0 +1,53 @@ +SLEEP(3) Linux Programmer's Manual SLEEP(3) + +NNAAMMEE + sleep - sleep for a specified number of seconds + +SSYYNNOOPPSSIISS + ##iinncclluuddee <<uunniissttdd..hh>> + + uunnssiiggnneedd iinntt sslleeeepp((uunnssiiggnneedd iinntt _s_e_c_o_n_d_s));; + +DDEESSCCRRIIPPTTIIOONN + sslleeeepp() causes the calling thread to sleep either until the number of + real-time seconds specified in _s_e_c_o_n_d_s have elapsed or until a signal ar‐ + rives which is not ignored. + +RREETTUURRNN VVAALLUUEE + Zero if the requested time has elapsed, or the number of seconds left to + sleep, if the call was interrupted by a signal handler. + +AATTTTRRIIBBUUTTEESS + For an explanation of the terms used in this section, see aattttrriibbuutteess(7). + + ┌──────────┬───────────────┬─────────────────────────────┐ + │IInntteerrffaaccee │ AAttttrriibbuuttee │ VVaalluuee │ + ├──────────┼───────────────┼─────────────────────────────┤ + │sslleeeepp() │ Thread safety │ MT-Unsafe sig:SIGCHLD/linux │ + └──────────┴───────────────┴─────────────────────────────┘ + +CCOONNFFOORRMMIINNGG TTOO + POSIX.1-2001, POSIX.1-2008. + +NNOOTTEESS + On Linux, sslleeeepp() is implemented via nnaannoosslleeeepp(2). See the nnaannoosslleeeepp(2) + man page for a discussion of the clock used. + + PPoorrttaabbiilliittyy nnootteess + On some systems, sslleeeepp() may be implemented using aallaarrmm(2) and SSIIGGAALLRRMM + (POSIX.1 permits this); mixing calls to aallaarrmm(2) and sslleeeepp() is a bad + idea. + + Using lloonnggjjmmpp(3) from a signal handler or modifying the handling of + SSIIGGAALLRRMM while sleeping will cause undefined results. + +SSEEEE AALLSSOO + sslleeeepp(1), aallaarrmm(2), nnaannoosslleeeepp(2), ssiiggnnaall(2), ssiiggnnaall(7) + +CCOOLLOOPPHHOONN + This page is part of release 5.10 of the Linux _m_a_n_-_p_a_g_e_s project. A de‐ + scription of the project, information about reporting bugs, and the lat‐ + est version of this page, can be found at + https://www.kernel.org/doc/man-pages/. + +GNU 2017-09-15 SLEEP(3) |