sched/sched: Replace nxsched_alarm_tick_expiration() with nxsched_tick_expiration()#17199
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…ks()
In the current NuttX kernel implementation, there is no function
to represent pure scheduler ticks.
The existing clock_systime_ticks() cannot serve this purpose,
because it keeps increasing even when the scheduler is not running.
This happens since the returned value reflects real hardware time:
as long as the timer or alarm hardware is active,
clock_systime_ticks() will continuously increase.
This patch introduces two new functions that provide access to
scheduler ticks — a counter that only increases when the scheduler
itself is running.
Signed-off-by: Chengdong Wang wangchengdong@lixiang.com
Replace direct usage of g_system_ticks with clock_increase_sched_ticks() and clock_get_sched_ticks() Signed-off-by: Chengdong Wang wangchengdong@lixiang.com
Improve nxclock_gettime(), to get the system time excluding the time that the system is suspended, when the clockid is CLOCK_MONOTONIC Signed-off-by: Chengdong Wang wangchengdong@lixiang.com
Enlarge kflash memory size for the sam3u-ek board
to resolve the build error.
Signed-off-by: Chengdong Wang <wangchengdong@lixiang.com>
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xiaoxiang781216
previously approved these changes
Oct 17, 2025
Introduce a new function nxsched_tick_expiration() to replace
nxsched_alarm_tick_expiration(). The new function provides a
common implementation that can be shared by both the alarm
and timer architectures.
This change reduces code duplication and provides a unified
function that can be directly reused.
Signed-off-by: Chengdong Wang <wangchengdong@lixiang.com>
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Contributor
Author
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fixed a CI build error, please check again @xiaoxiang781216 |
xiaoxiang781216
approved these changes
Oct 17, 2025
anchao
approved these changes
Oct 17, 2025
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Summary
Improve nuttx kernel tickless implementation,
Impact
Testing
ostest passed on board a2g-tc397-5v-tft