1 files changed, 122 insertions, 0 deletions
diff --git a/man-pages-posix-2003/man3p/getitimer.3p b/man-pages-posix-2003/man3p/getitimer.3p
new file mode 100644
index 0000000..24cc9a1
--- /dev/null
+++ b/man-pages-posix-2003/man3p/getitimer.3p
@@ -0,0 +1,122 @@
+.\" Copyright (c) 2001-2003 The Open Group, All Rights Reserved 
+.TH "GETITIMER" 3P 2003 "IEEE/The Open Group" "POSIX Programmer's Manual"
+.\" getitimer 
+.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
+getitimer, setitimer \- get and set value of interval timer
+.SH SYNOPSIS
+.LP
+\fB#include <sys/time.h>
+.br
+.sp
+int getitimer(int\fP \fIwhich\fP\fB, struct itimerval *\fP\fIvalue\fP\fB);
+.br
+int setitimer(int\fP \fIwhich\fP\fB, const struct itimerval *restrict\fP
+\fIvalue\fP\fB,
+.br
+\ \ \ \ \ \  struct itimerval *restrict\fP \fIovalue\fP\fB); \fP
+\fB
+.br
+\fP
+.SH DESCRIPTION
+.LP
+The \fIgetitimer\fP() function shall store the current value of the
+timer specified by \fIwhich\fP into the structure pointed
+to by \fIvalue\fP. The \fIsetitimer\fP() function shall set the timer
+specified by \fIwhich\fP to the value specified in the
+structure pointed to by \fIvalue\fP, and if \fIovalue\fP is not a
+null pointer, store the previous value of the timer in the
+structure pointed to by \fIovalue\fP.
+.LP
+A timer value is defined by the \fBitimerval\fP structure, specified
+in \fI<sys/time.h>\fP. If \fIit_value\fP is non-zero, it shall indicate
+the time to the next
+timer expiration. If \fIit_interval\fP is non-zero, it shall specify
+a value to be used in reloading \fIit_value\fP when the
+timer expires. Setting \fIit_value\fP to 0 shall disable a timer,
+regardless of the value of \fIit_interval\fP. Setting
+\fIit_interval\fP to 0 shall disable a timer after its next expiration
+(assuming \fIit_value\fP is non-zero).
+.LP
+Implementations may place limitations on the granularity of timer
+values. For each interval timer, if the requested timer value
+requires a finer granularity than the implementation supports, the
+actual timer value shall be rounded up to the next supported
+value.
+.LP
+An XSI-conforming implementation provides each process with at least
+three interval timers, which are indicated by the
+\fIwhich\fP argument:
+.TP 7
+ITIMER_REAL
+Decrements in real time. A SIGALRM signal is delivered when this timer
+expires.
+.TP 7
+ITIMER_VIRTUAL
+Decrements in process virtual time. It runs only when the process
+is executing. A SIGVTALRM signal is delivered when it
+expires.
+.TP 7
+ITIMER_PROF
+Decrements both in process virtual time and when the system is running
+on behalf of the process. It is designed to be used by
+interpreters in statistically profiling the execution of interpreted
+programs. Each time the ITIMER_PROF timer expires, the SIGPROF
+signal is delivered.
+.sp
+.LP
+The interaction between \fIsetitimer\fP() and any of \fIalarm\fP(),
+\fIsleep\fP(), or \fIusleep\fP() is unspecified.
+.SH RETURN VALUE
+.LP
+Upon successful completion, \fIgetitimer\fP() or \fIsetitimer\fP()
+shall return 0; otherwise, -1 shall be returned and
+\fIerrno\fP set to indicate the error.
+.SH ERRORS
+.LP
+The \fIsetitimer\fP() function shall fail if:
+.TP 7
+.B EINVAL
+The \fIvalue\fP argument is not in canonical form. (In canonical form,
+the number of microseconds is a non-negative integer
+less than 1000000 and the number of seconds is a non-negative integer.)
+.sp
+.LP
+The \fIgetitimer\fP() and \fIsetitimer\fP() functions may fail if:
+.TP 7
+.B EINVAL
+The \fIwhich\fP argument is not recognized.
+.sp
+.LP
+\fIThe following sections are informative.\fP
+.SH EXAMPLES
+.LP
+None.
+.SH APPLICATION USAGE
+.LP
+None.
+.SH RATIONALE
+.LP
+None.
+.SH FUTURE DIRECTIONS
+.LP
+None.
+.SH SEE ALSO
+.LP
+\fIalarm\fP(), \fIsleep\fP(), \fItimer_getoverrun\fP(), \fIualarm\fP(),
+\fIusleep\fP(), the Base Definitions volume of IEEE\ Std\ 1003.1-2001,
+\fI<signal.h>\fP, \fI<sys/time.h>\fP
+.SH COPYRIGHT
+Portions of this text are reprinted and reproduced in electronic form
+from IEEE Std 1003.1, 2003 Edition, Standard for Information Technology
+-- Portable Operating System Interface (POSIX), The Open Group Base
+Specifications Issue 6, Copyright (C) 2001-2003 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 .