Active Topics
-
Is there a section to talk about Java ME? Apps, etc. (6)
to General by Kalatti - 5 days ago - more...
|
2010-07-29
, 10:46
|
|
Posts: 1,258 |
Thanked: 672 times |
Joined on Mar 2009
|
#12
|
here's some quick code:
while (1) {
f = fopen("/sys/devices...blahblah",...)
fread()
write to bluetooth();
...
usleep(500);
}
while (1) {
f = fopen("/sys/devices...blahblah",...)
fread()
write to bluetooth();
...
usleep(500);
}
 |
|
2010-07-29
, 12:23
|
|
Posts: 4,274 |
Thanked: 5,358 times |
Joined on Sep 2007
@ Looking at y'all and sighing
|
#13
|
Originally Posted by shadowjk
Actually, unless I'm mistaken, Fremantle also has such a feature: http://maemo.org/api_refs/5.0/5.0-fi...eat-signal-add
As a sidenote, both intel and the QT folks are working on synchronizing timers in MeeGo. That is, the app can request a wakeup with specified precision (or lack thereof). Say you want your app to wake up every 10 second, but you don't care that much about exactly 10 second. So you can ask "10 seconds, give or take a few", and the kernel or qt can look for another app that has a similar requirements, and slowly move their timers closer together until they fire at the same time, effectively coalescing the wakeups of two apps into becoming a single wakeup.
The above is for applets, but libiphb can be used directly. Shame most applet writers opt for g_timeout_add_seconds () first...
Originally Posted by http://wiki.maemo.org/Documentation/Maemo_5_Developer_Guide/Architecture/UI_Framework#Status_menu_plugin_API
Function for registering callbacks using the system-wide synchronized timers: hd_status_plugin_item_heartbeat_signal_add
Last edited by qwerty12; 2010-07-29 at 12:26.
|
|
2010-07-29
, 19:31
|
|
Posts: 1,258 |
Thanked: 672 times |
Joined on Mar 2009
|
#14
|
Oh! libiphb! I've been trying to remember that name for half a year now! Thanks!
|
|
2010-07-29
, 20:06
|
|
Posts: 8 |
Thanked: 18 times |
Joined on Apr 2010
@ USA
|
#15
|
sleep() is bad. Never use sleep() for anything except for quick debugging. If you need to do something that is periodic, either figure out how to poll for it, or use a system timer. That heartbeat mechanism is sexy.
Never, ever, ever use sleep.
Never, ever, ever use sleep.
Ham > Turkey