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QNX SDP is a cross-compiling and debugging environment, including an IDE and command-line tools, for building binary images and programs for target boards running the QNX OS 8.0.
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C Library Reference
T
timer_getexpstatus()
Get the expiry status of a timer

QNX Momentics IDE User's Guide
This User's Guide describes version 8.0 of the Integrated Development Environment (IDE) that's part of the QNX Tool Suite.
QNX Software Development Platform
QNX SDP is a cross-compiling and debugging environment, including an IDE and command-line tools, for building binary images and programs for target boards running the QNX OS 8.0.
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        Start a thread pool
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        Determine the current calendar time
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        Create a timer
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        Delete a timer
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        Get the expiry status of a timer
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        Return the number of timer overruns
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        Get the amount of time left on a timer
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        Arm a timer with the given expiration time, disarm it, or set its tolerance
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        Destroy a process timer
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        Get information about a timer
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        Arm a timer with the given expiration time, disarm it, or set its tolerance
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        Set a timeout on a blocking state
      - times()
        Get time-accounting information
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        Time-specification structure
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        Get the number of seconds and nanoseconds since a given epoch
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        Convert a timespec structure to nanoseconds
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        The number of seconds by which the local time zone is earlier than UTC
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        Structure that describes calendar time
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        Insert a trace event for the current address
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        Control the tracing of kernel events
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        Process trace data
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        Get a fully qualified pathname for a file
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        Get a fully qualified pathname for a file
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        The abbreviations for the time zone for standard and daylight savings time
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        Set the time according to the current time zone
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Typographical Conventions, Support, and Licensing
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timer_getexpstatus()

QNX SDP8.0C Library ReferenceAPIDeveloper

Get the expiry status of a timer

Synopsis:

#include <time.h>

int timer_getexpstatus( timer_t timerid );

Arguments:

timerid: A timer_t object that holds a timer ID, as set by timer_create().

Library:

libc

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

Description:

The timer_getexpstatus() function gets the expiry status of the time with the ID given by timerid.

Note:

This function is based on a POSIX draft. If you want your code to be more portable, then instead of calling timer_getexpstatus(), call timer_gettime() and check the amount of time left on the timer.

Returns:

0: The timer has expired.
-1: An error occurred (errno is set).

Errors:

EINVAL: The timer specified by timerid doesn't exist or isn't expired.

Classification:

QNX OS


Safety:
Cancellation point	No
Signal handler	Yes
Thread	Yes

Page updated: August 09, 2024