diff options
Diffstat (limited to 'man3/usleep.3')
-rw-r--r-- | man3/usleep.3 | 123 |
1 files changed, 0 insertions, 123 deletions
diff --git a/man3/usleep.3 b/man3/usleep.3 deleted file mode 100644 index cb3ee05..0000000 --- a/man3/usleep.3 +++ /dev/null @@ -1,123 +0,0 @@ -'\" t -.\" Copyright 1993 David Metcalfe (david@prism.demon.co.uk) -.\" -.\" SPDX-License-Identifier: Linux-man-pages-copyleft -.\" -.\" References consulted: -.\" Linux libc source code -.\" Lewine's _POSIX Programmer's Guide_ (O'Reilly & Associates, 1991) -.\" 386BSD man pages -.\" Modified 1993-07-24 by Rik Faith (faith@cs.unc.edu) -.\" Modified 2001-04-01 by aeb -.\" Modified 2003-07-23 by aeb -.\" -.TH usleep 3 2023-10-31 "Linux man-pages 6.7" -.SH NAME -usleep \- suspend execution for microsecond intervals -.SH LIBRARY -Standard C library -.RI ( libc ", " \-lc ) -.SH SYNOPSIS -.nf -.B "#include <unistd.h>" -.P -.BI "int usleep(useconds_t " usec ); -.fi -.P -.RS -4 -Feature Test Macro Requirements for glibc (see -.BR feature_test_macros (7)): -.RE -.P -.BR usleep (): -.nf - Since glibc 2.12: - (_XOPEN_SOURCE >= 500) && ! (_POSIX_C_SOURCE >= 200809L) - || /* glibc >= 2.19: */ _DEFAULT_SOURCE - || /* glibc <= 2.19: */ _BSD_SOURCE - Before glibc 2.12: - _BSD_SOURCE || _XOPEN_SOURCE >= 500 -.\" || _XOPEN_SOURCE && _XOPEN_SOURCE_EXTENDED -.fi -.SH DESCRIPTION -The -.BR usleep () -function suspends execution of the calling thread for -(at least) \fIusec\fP microseconds. -The sleep may be lengthened slightly -by any system activity or by the time spent processing the call or by the -granularity of system timers. -.SH RETURN VALUE -The -.BR usleep () -function returns 0 on success. -On error, \-1 is returned, with -.I errno -set to indicate the error. -.SH ERRORS -.TP -.B EINTR -Interrupted by a signal; see -.BR signal (7). -.TP -.B EINVAL -\fIusec\fP is greater than or equal to 1000000. -(On systems where that is considered an error.) -.SH ATTRIBUTES -For an explanation of the terms used in this section, see -.BR attributes (7). -.TS -allbox; -lbx lb lb -l l l. -Interface Attribute Value -T{ -.na -.nh -.BR usleep () -T} Thread safety MT-Safe -.TE -.SH STANDARDS -None. -.SH HISTORY -4.3BSD, POSIX.1-2001. -POSIX.1-2001 declares it obsolete, suggesting -.BR nanosleep (2) -instead. -Removed in POSIX.1-2008. -.P -On the original BSD implementation, -and before glibc 2.2.2, the return type of this function is -.IR void . -The POSIX version returns -.IR int , -and this is also the prototype used since glibc 2.2.2. -.P -Only the -.B EINVAL -error return is documented by SUSv2 and POSIX.1-2001. -.SH CAVEATS -The interaction of this function with the -.B SIGALRM -signal, and with other timer functions such as -.BR alarm (2), -.BR sleep (3), -.BR nanosleep (2), -.BR setitimer (2), -.BR timer_create (2), -.BR timer_delete (2), -.BR timer_getoverrun (2), -.BR timer_gettime (2), -.BR timer_settime (2), -.BR ualarm (3) -is unspecified. -.SH SEE ALSO -.BR alarm (2), -.BR getitimer (2), -.BR nanosleep (2), -.BR select (2), -.BR setitimer (2), -.BR sleep (3), -.BR ualarm (3), -.BR useconds_t (3type), -.BR time (7) |