QNX RTOS v4 Knowledge Base
QNX RTOS v4 Knowledge Base
| Title |
How to use clock ticks in code. |
| Ref. No. |
QNX.000009422 |
| Category(ies) |
Development |
| Issue |
In QNX4, using Watcom 10.6, how do you tell when the clock has ticked to a new second?
And how do you start a function on the start of a new second?
|
| Solution |
To tell if its a new second:
--
x = tptr->seconds;
while (tptr->seconds == x);
--
You have to load the structure with the time before this code.
To start something on a new second:
--
while (tptr->nsec&1);
--
using nsec gives you the best resolution possible using the time functions.
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