dnxSleep.c File Reference

Implements the DNX cancelable sleep routines. More...

#include "dnxSleep.h"
#include <errno.h>
#include <string.h>
#include <time.h>

Go to the source code of this file.

Functions
void	dnxCancelableSleep (int msecs)
	A millisecond-resolution sleep routine that can be cancelled.

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Detailed Description

Implements the DNX cancelable sleep routines.

Author:

John Calcote (jcalcote@users.sourceforge.net)

Attention:

Please submit patches to http://dnx.sourceforge.net

Definition in file dnxSleep.c.

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Function Documentation

void dnxCancelableSleep

(

int

msecs

)

A millisecond-resolution sleep routine that can be cancelled.

The pthreads specification indicates clearly that the sleep() system call MUST be a cancellation point. However, it appears that sleep() on Linux calls a routine named _nanosleep_nocancel, which clearly is not a cancellation point. Oversight? Not even Google appears to know. It seems that most Unix/Linux distros implement sleep in terms of SIGALRM. This is the problem point for creating a cancelable form of sleep().

Parameters:

[in]

msecs

- the number of milli-seconds to sleep.

Definition at line 50 of file dnxSleep.c.

Referenced by dnxRegistrar(), dnxTimer(), dnxWlmDestroy(), dnxWlmReconfigure(), and dnxWorker().