Changeset 7509ddc in mainline for generic/include/proc/task.h

Timestamp:

2006-06-04T21:54:49Z (19 years ago)

Author:

Jakub Jermar <jakub@…>

Branches:

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

Children:

34dcd3f

Parents:

2cb5e64

Message:

Framework for task_kill().
Some pieces (e.g. implementation of ktask_cleanup() kernel thread and
task_destroy() function) are missing.
Changed locking order for task lock, threads_lock and thread lock from
threads_lock, thread lock, task lock to task lock, threads_lock, thread lock.

File:

• generic/include/proc/task.h (modified) (2 diffs)

generic/include/proc/task.h

@@ -41 +41 @@
 /** Task structure. */
 struct task {
+        /** Task lock.
+         *
+         * Must be acquired before threads_lock and thread lock of any of its threads.
+         */
         SPINLOCK_DECLARE(lock);
+        
         char *name;
         link_t th_head;         /**< List of threads contained in this task. */
         as_t *as;               /**< Address space. */
         task_id_t taskid;       /**< Unique identity of task */
+
+        /** If this is true, new threads can become part of the task. */
+        bool accept_new_threads;
+
+        count_t refcount;       /**< Number of references (i.e. threads). */
 
         cap_t capabilities;     /**< Task capabilities. */
@@ -71 +81 @@
 extern void task_init(void);
 extern task_t *task_create(as_t *as, char *name);
+extern void task_destroy(task_t *t);
 extern task_t *task_run_program(void *program_addr, char *name);
 extern task_t *task_find_by_id(task_id_t id);
+extern int task_kill(task_id_t id);
+
 
 #ifndef task_create_arch