Changeset 9a8d91b in mainline for generic/src/proc/task.c

Timestamp:

2006-04-12T16:40:35Z (19 years ago)

Author:

Jakub Jermar <jakub@…>

Branches:

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

Children:

1ace9ea

Parents:

b7f364e

Message:

Add task_find_by_id().
Add kernel support for SYS_MAP_PHYSMEM.

File:

• generic/src/proc/task.c (modified) (1 diff)

generic/src/proc/task.c

@@ -173 +173 @@
 }
 
+/** Find task structure corresponding to task ID.
+ *
+ * The tasks_lock must be already held by the caller of this function
+ * and interrupts must be disabled.
+ *
+ * @param id Task ID.
+ *
+ * @return Task structure address or NULL if there is no such task ID.
+ */
+task_t *task_find_by_id(task_id_t id)
+{
+        btree_node_t *leaf;
+        
+        return (task_t *) btree_search(&tasks_btree, (btree_key_t) id, &leaf);
+}
+
 /** Print task list */
 void task_print_list(void)