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Diffstat (limited to 'upstream/archlinux/man0p/sys_time.h.0p')
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diff --git a/upstream/archlinux/man0p/sys_time.h.0p b/upstream/archlinux/man0p/sys_time.h.0p new file mode 100644 index 00000000..f2fd7095 --- /dev/null +++ b/upstream/archlinux/man0p/sys_time.h.0p @@ -0,0 +1,147 @@ +'\" et +.TH sys_time.h "0P" 2017 "IEEE/The Open Group" "POSIX Programmer's Manual" +.\" +.SH PROLOG +This manual page is part of the POSIX Programmer's Manual. +The Linux implementation of this interface may differ (consult +the corresponding Linux manual page for details of Linux behavior), +or the interface may not be implemented on Linux. +.\" +.SH NAME +sys/time.h +\(em time types +.SH SYNOPSIS +.LP +.nf +#include <sys/time.h> +.fi +.SH DESCRIPTION +The +.IR <sys/time.h> +header shall define the +.BR timeval +structure, which shall include at least the following members: +.sp +.RS 4 +.nf + +time_t tv_sec \fRSeconds.\fR +suseconds_t tv_usec \fRMicroseconds.\fR +.fi +.P +.RE +.P +The +.IR <sys/time.h> +header shall define the +.BR itimerval +structure, which shall include at least the following members: +.sp +.RS 4 +.nf + +struct timeval it_interval \fRTimer interval.\fR +struct timeval it_value \fRCurrent value.\fR +.fi +.P +.RE +.P +The +.IR <sys/time.h> +header shall define the +.BR time_t +and +.BR suseconds_t +types as described in +.IR <sys/types.h> . +.P +The +.IR <sys/time.h> +header shall define the +.BR fd_set +type as described in +.IR <sys/select.h> . +.P +The +.IR <sys/time.h> +header shall define the following symbolic constants for the +.IR which +argument of +\fIgetitimer\fR() +and +\fIsetitimer\fR(): +.IP ITIMER_REAL 14 +Decrements in real time. +.IP ITIMER_VIRTUAL 14 +Decrements in process virtual time. +.IP ITIMER_PROF 14 +Decrements both in process virtual time and when the system is running +on behalf of the process. +.P +The +.IR <sys/time.h> +header shall define the following as described in +.IR <sys/select.h> : +\fIFD_CLR\fR() +\fIFD_ISSET\fR() +\fIFD_SET\fR() +\fIFD_ZERO\fR() +FD_SETSIZE +.P +The following shall be declared as functions and may also be defined +as macros. Function prototypes shall be provided. +.sp +.RS 4 +.nf + +int getitimer(int, struct itimerval *); +int gettimeofday(struct timeval *restrict, void *restrict); +int setitimer(int, const struct itimerval *restrict, + struct itimerval *restrict); +int select(int, fd_set *restrict, fd_set *restrict, fd_set *restrict, + struct timeval *restrict); +int utimes(const char *, const struct timeval [2]); +.fi +.P +.RE +.P +Inclusion of the +.IR <sys/time.h> +header may make visible all symbols from the +.IR <sys/select.h> +header. +.LP +.IR "The following sections are informative." +.SH "APPLICATION USAGE" +None. +.SH RATIONALE +None. +.SH "FUTURE DIRECTIONS" +None. +.SH "SEE ALSO" +.IR "\fB<sys_select.h>\fP", +.IR "\fB<sys_types.h>\fP" +.P +The System Interfaces volume of POSIX.1\(hy2017, +.IR "\fIfutimens\fR\^(\|)", +.IR "\fIgetitimer\fR\^(\|)", +.IR "\fIgettimeofday\fR\^(\|)", +.IR "\fIpselect\fR\^(\|)" +.\" +.SH COPYRIGHT +Portions of this text are reprinted and reproduced in electronic form +from IEEE Std 1003.1-2017, Standard for Information Technology +-- Portable Operating System Interface (POSIX), The Open Group Base +Specifications Issue 7, 2018 Edition, +Copyright (C) 2018 by the Institute of +Electrical and Electronics Engineers, Inc and The Open Group. +In the event of any discrepancy between this version and the original IEEE and +The Open Group Standard, the original IEEE and The Open Group Standard +is the referee document. The original Standard can be obtained online at +http://www.opengroup.org/unix/online.html . +.PP +Any typographical or formatting errors that appear +in this page are most likely +to have been introduced during the conversion of the source files to +man page format. To report such errors, see +https://www.kernel.org/doc/man-pages/reporting_bugs.html . |