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author | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2013-06-10 16:15:46 +0200 |
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committer | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2013-06-14 16:26:08 +0200 |
commit | 6eba7c857b9e72bc4ed8e55f0c9538c45631484f (patch) | |
tree | 09847feda8d2183412ab57d59602b3f08481d2ae /cpukit/rtems/src/taskwakeafter.c | |
parent | scheduler: Add start idle thread operation (diff) | |
download | rtems-6eba7c857b9e72bc4ed8e55f0c9538c45631484f.tar.bz2 |
scheduler: Specify thread of yield operation
The yielding thread of the yield operation is now specified by a
parameter. The tick operation may be performed for each executing
thread in a SMP configuration.
Diffstat (limited to 'cpukit/rtems/src/taskwakeafter.c')
-rw-r--r-- | cpukit/rtems/src/taskwakeafter.c | 18 |
1 files changed, 13 insertions, 5 deletions
diff --git a/cpukit/rtems/src/taskwakeafter.c b/cpukit/rtems/src/taskwakeafter.c index 1df86553f8..665423409b 100644 --- a/cpukit/rtems/src/taskwakeafter.c +++ b/cpukit/rtems/src/taskwakeafter.c @@ -38,18 +38,26 @@ rtems_status_code rtems_task_wake_after( rtems_interval ticks ) { + /* + * It is critical to obtain the executing thread after thread dispatching is + * disabled on SMP configurations. + */ + Thread_Control *executing; + _Thread_Disable_dispatch(); + executing = _Thread_Executing; + if ( ticks == 0 ) { - _Scheduler_Yield(); + _Scheduler_Yield( executing ); } else { - _Thread_Set_state( _Thread_Executing, STATES_DELAYING ); + _Thread_Set_state( executing, STATES_DELAYING ); _Watchdog_Initialize( - &_Thread_Executing->Timer, + &executing->Timer, _Thread_Delay_ended, - _Thread_Executing->Object.id, + executing->Object.id, NULL ); - _Watchdog_Insert_ticks( &_Thread_Executing->Timer, ticks ); + _Watchdog_Insert_ticks( &executing->Timer, ticks ); } _Thread_Enable_dispatch(); return RTEMS_SUCCESSFUL; |