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nap()

Sleep for a given number of milliseconds

Synopsis:

#include <unix.h>

unsigned int nap( unsigned int ms);

Arguments:

ms: The number of milliseconds that you want the process to sleep.

Library:

libc

Use the -l c option to qcc to link against this library. This library is usually included automatically.

Description:

The nap() routine delays the calling process for ms milliseconds. This function is the same as delay() and is similar to napms().

The suspension time may be greater than the requested amount, due to the nature of time measurement (see the Tick, Tock: Understanding the Neutrino Microkernel's Concept of Time chapter of the QNX Neutrino Programmer's Guide), or due to the scheduling of other, higher-priority threads by the system.

Classification:

Unix

Safety:
Cancellation point	Yes
Interrupt handler	No
Signal handler	Yes
Thread	Yes