Changeset 86939b1 in mainline for kernel/generic/src/ipc/ipc.c

Timestamp:

2012-08-13T14:12:19Z (12 years ago)

Author:

Jakub Jermar <jakub@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

1cb75de

Parents:

cfaa35a

Message:

Maintain task's active calls in the active call list.

• The call is placed on the list when sent and removed when the answer is picked up by the task.

File:

• kernel/generic/src/ipc/ipc.c (modified) (3 diffs)

kernel/generic/src/ipc/ipc.c

@@ -230 +230 @@
         call->data.phone = phone;
         atomic_inc(&phone->active_calls);
+
+        spinlock_lock(&TASK->active_calls_lock);
+        list_append(&call->ta_link, &TASK->active_calls);
+        spinlock_unlock(&TASK->active_calls_lock);
+
         IPC_SET_RETVAL(call->data, err);
         _ipc_answer_free_call(call, false);
@@ -250 +255 @@
         if (!(call->flags & IPC_CALL_FORWARDED)) {
                 atomic_inc(&phone->active_calls);
+
+                spinlock_lock(&TASK->active_calls_lock);
+                list_append(&call->ta_link, &TASK->active_calls);
+                spinlock_unlock(&TASK->active_calls_lock);
+
                 call->data.phone = phone;
                 call->data.task_id = TASK->taskid;
@@ -419 +429 @@
                 list_remove(&request->ab_link);
                 atomic_dec(&request->data.phone->active_calls);
+
+                /*
+                 * Remove the call from this task's active call list.
+                 */
+                spinlock_lock(&TASK->active_calls_lock);
+                list_remove(&request->ta_link);
+                spinlock_unlock(&TASK->active_calls_lock);
         } else if (!list_empty(&box->calls)) {
                 /* Count received call */