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2008-10-13 Joel Sherrill <joel.sherrill@oarcorp.com>

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* clock_driver_simidle.c: Ensure ISR nest level and Thread Dispatch
	disable level are in the same state they would be in a true ISR. This
	ensures that all of the clock tick handling is as similar as possible
	in this limited environment.
This commit is contained in:
Joel Sherrill
2008-10-13 17:06:33 +00:00
parent 06c3530efc
commit 08467405b0
2 changed files with 16 additions and 2 deletions
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7
c/src/lib/libbsp/shared/ChangeLog
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@@ -1,3 +1,10 @@
2008-10-13 Joel Sherrill <joel.sherrill@oarcorp.com>
* clock_driver_simidle.c: Ensure ISR nest level and Thread Dispatch
disable level are in the same state they would be in a true ISR. This
ensures that all of the clock tick handling is as similar as possible
in this limited environment.
2008-10-02 Joel Sherrill <joel.sherrill@OARcorp.com>
* include/tm27.h: Use shared tm27.h stub.

11
c/src/lib/libbsp/shared/clock_driver_simidle.c
View File

@@ -7,7 +7,9 @@
* $Id$
*/
#define __RTEMS_VIOLATE_KERNEL_VISIBILITY__
#include <rtems.h>
#include <rtems/score/thread.h>
#define CLOCK_VECTOR 0
@@ -40,8 +42,13 @@ Thread clock_driver_sim_idle_body(
)
{
for( ; ; ) {
if ( clock_driver_enabled )
rtems_clock_tick();
if ( clock_driver_enabled ) {
_Thread_Disable_dispatch();
_ISR_Nest_level++;
rtems_clock_tick();
_ISR_Nest_level--;
_Thread_Enable_dispatch();
}
}
return 0; /* to avoid warning */
}