[Cbe-oss-dev] [PATCH 19/22]MARS/task: event flag try wait return bits

[Yuji Mano]

This fixes the task event flag implementation so that the current bits status is
properly returned when try_wait returns MARS_ERROR_BUSY.

Signed-off-by: Yuji Mano <yuji.mano at am.sony.com>
---
 task/src/host/lib/task_event_flag.c |    8 ++++++++
 task/src/mpu/lib/task_event_flag.c  |    5 +++++
 2 files changed, 13 insertions(+)

--- a/task/src/host/lib/task_event_flag.c
+++ b/task/src/host/lib/task_event_flag.c
@@ -265,6 +265,10 @@ static int wait(uint64_t event_flag_ea,
 	switch (mask_mode) {
 	case MARS_TASK_EVENT_FLAG_MASK_OR:
 		while ((event_flag->bits & mask) == 0) {
+			/* get current bits status if return bits requested */
+			if (bits)
+				*bits = event_flag->bits;
+
 			mars_mutex_unlock_put(event_flag_ea,
 					      (struct mars_mutex *)event_flag);
 
@@ -283,6 +287,10 @@ static int wait(uint64_t event_flag_ea,
 		break;
 	case MARS_TASK_EVENT_FLAG_MASK_AND:
 		while ((event_flag->bits & mask) != mask) {
+			/* get current bits status if return bits requested */
+			if (bits)
+				*bits = event_flag->bits;
+
 			mars_mutex_unlock_put(event_flag_ea,
 					      (struct mars_mutex *)event_flag);
 
--- a/task/src/mpu/lib/task_event_flag.c
+++ b/task/src/mpu/lib/task_event_flag.c
@@ -185,8 +185,13 @@ static int wait(uint64_t event_flag_ea,u
 	if (wait) {
 		/* only try so return busy */
 		if (try) {
+			/* get current bits status if return bits requested */
+			if (bits)
+				*bits = event_flag.bits;
+
 			mars_mutex_unlock_put(event_flag_ea,
 					      (struct mars_mutex *)&event_flag);
+
 			return MARS_ERROR_BUSY;
 		}