FpNanoSleep
Suspend process for a short time
Declaration
Source position: bunxh.inc line 99
function FpNanoSleep(req: ptimespec; rem: ptimespec) : cint;
Description
FpNanoSleep suspends the process till a time period as specified in req has passed. Then the function returns. If the call was interrupted (e.g. by some signal) then the function may return earlier, and rem will contain the remaining time till the end of the intended period. In this case the return value will be -1, and ErrNo will be set to EINTR
If the function returns without error, the return value is zero.
Errors
If an error occurred or the call was interrupted, -1 is returned. Extended error information can be retrieved using fpGetErrno .
See also
| Name | Description |
|---|---|
| FpAlarm | Schedule an alarm signal to be delivered |
| FpPause | Wait for a signal to arrive |
Example
program example72;
{ Program to demonstrate the NanoSleep function. }
uses BaseUnix;
Var
Req,Rem : TimeSpec;
Res : Longint;
begin
With Req do
begin
tv_sec:=10;
tv_nsec:=100;
end;
Write('NanoSleep returned : ');
Flush(Output);
Res:=(fpNanoSleep(@Req,@rem));
Writeln(res);
If (res<>0) then
With rem do
begin
Writeln('Remaining seconds : ',tv_sec);
Writeln('Remaining nanoseconds : ',tv_nsec);
end;
end.