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@@ -216,6 +216,13 @@ TimeVal = Record
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end;
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end;
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PTimeVal = ^TimeVal;
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PTimeVal = ^TimeVal;
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\end{verbatim}
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\end{verbatim}
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+The \var{timespec} record is needed in the \seef{NanoSleep} function:
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+\begin{verbatim}
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+timespec = packed record
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+ tv_sec,tv_nsec:longint;
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+end;
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+\end{verbatim}
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+
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The \seep{Uname} function uses the \var{utsname} to return information about
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The \seep{Uname} function uses the \var{utsname} to return information about
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the current kernel :
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the current kernel :
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\begin{verbatim}
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\begin{verbatim}
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@@ -562,6 +569,7 @@ Functions for managing and responding to signals.
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\procref{SigProcMask}{Set signal processing mask}
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\procref{SigProcMask}{Set signal processing mask}
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\procref{SigRaise}{Send signal to self}
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\procref{SigRaise}{Send signal to self}
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\procref{SigSuspend}{Sets signal mask and waits for signal}
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\procref{SigSuspend}{Sets signal mask and waits for signal}
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+\funcref{NanoSleep}{Waits for a specific amount of time}
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\end{funclist}
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\end{funclist}
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\subsection{System information}
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\subsection{System information}
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@@ -2502,11 +2510,33 @@ is set to an error value. See \seef{MMap} for possible error values.
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For an example, see \seef{MMap}.
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For an example, see \seef{MMap}.
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+\begin{function}{NanoSleep}
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+\Declaration
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+Function NanoSleep(const req : timespec;var rem : timespec) : longint;
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+\Description
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+\var{NanoSleep} suspends the process till a time period as specified
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+in \var{req} has passed. Then the function returns. If the
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+call was interrupted (e.g. by some signal) then the function may
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+return earlier, and \var{rem} will contain the remaining time till the
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+end of the intended period. In this case the return value will be
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+-1, and \var{LinuxError} will be set to \var{EINTR}
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+
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+If the function returns without error, the return value is zero.
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+\Errors
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+If the call was interrupted, -1 is returned, and \var{LinuxError} is set
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+to \var{EINTR}. If invalid time values were specified, then -1 is returned
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+and \var{LinuxError} is set to \var{EINVAL}.
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+\SeeAlso
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+\seep{Pause}, \seef{Alarm}
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+\end{function}
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+
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+\FPCexample{ex70}
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+
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\begin{procedure}{Nice}
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\begin{procedure}{Nice}
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\Declaration
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\Declaration
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Procedure Nice ( N : Integer);
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Procedure Nice ( N : Integer);
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\Description
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\Description
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-Nice adds \var{-N} to the priority of the running process. The lower the
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+\var{Nice} adds \var{-N} to the priority of the running process. The lower the
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priority numerically, the less the process is favored.
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priority numerically, the less the process is favored.
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Only the superuser can specify a negative \var{N}, i.e. increase the rate at
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Only the superuser can specify a negative \var{N}, i.e. increase the rate at
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which the process is run.
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which the process is run.
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@@ -3419,7 +3449,7 @@ behaves:
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exited.
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exited.
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\item [WUNTRACED] Causes \var{WaitPid} to return also for children which are
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\item [WUNTRACED] Causes \var{WaitPid} to return also for children which are
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stopped, but whose status has not yet been reported.
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stopped, but whose status has not yet been reported.
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-\item[__WCLONE] Causes \var{WaitPid} also to wait for threads created by
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+\item[\_\_WCLONE] Causes \var{WaitPid} also to wait for threads created by
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the \seef{Clone} call.
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the \seef{Clone} call.
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\end{description}
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\end{description}
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Upon return, it returns the exit status of the process, or -1 in case of
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Upon return, it returns the exit status of the process, or -1 in case of
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michael