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lx_kit: preserve priority order in scheduler

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This commit is contained in:
Christian Helmuth 2024-03-25 11:58:20 +01:00
parent 68925a6d33
commit 5ff1ef82d1
1 changed files with 4 additions and 11 deletions
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15
repos/dde_linux/src/lib/lx_kit/scheduler.cc
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@ -128,15 +128,6 @@ void Scheduler::_execute()
{
_idle_pre_post_process();
/*
* Iterate over all tasks and run first runnable.
*
* (1) If one runnable tasks was run start over from beginning of
* list.
*
* (2) If no task is runnable quit scheduling (break endless
* loop).
*/
while (true) {
bool at_least_one = false;
@ -151,6 +142,7 @@ void Scheduler::_execute()
Genode::destroy(Lx_kit::env().heap, tmp);
}
/* iterate over all tasks and run first runnable */
for (Task * t = _present_list.first(); t; t = t->next()) {
if (!t->runnable())
@ -161,10 +153,11 @@ void Scheduler::_execute()
t->run();
at_least_one = true;
if (!t->runnable())
break;
/* start over after one task was executed to preserve priority order */
break;
}
/* no task was runnable - quit scheduling (break endless loop) */
if (!at_least_one)
break;
}