Changeset 31e8ddd in mainline for generic/src/proc/task.c

Timestamp:

2006-06-05T17:25:37Z (19 years ago)

Author:

Jakub Jermar <jakub@…>

Branches:

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

Children:

2569ec90

Parents:

9c1c6771

Message:

task_destroy() implementation, fixes in as_destroy() and task_kill().
This is the first version of HelenOS that would perform complete cleanup leading from thread to destruction of address space.

File:

• generic/src/proc/task.c (modified) (2 diffs)

generic/src/proc/task.c

@@ -141 +141 @@
 void task_destroy(task_t *t)
 {
+        spinlock_lock(&tasks_lock);
+        btree_remove(&tasks_btree, t->taskid, NULL);
+        spinlock_unlock(&tasks_lock);
+
+        task_destroy_arch(t);
+        btree_destroy(&t->futexes);
+
+        mutex_lock_active(&t->as->lock);
+        if (--t->as->refcount == 0) {
+                mutex_unlock(&t->as->lock);
+                as_destroy(t->as);
+                /*
+                 * t->as is destroyed.
+                 */
+        } else {
+                mutex_unlock(&t->as->lock);
+        }
+        
+        free(t);
+        TASK = NULL;
 }
 
@@ -259 +279 @@
         ta->refcount++;
         spinlock_unlock(&ta->lock);
+
+        spinlock_unlock(&tasks_lock);
         
         t = thread_create(ktaskclnp, NULL, ta, 0, "ktaskclnp");