Changeset 45c8eea in mainline for uspace/lib/c/generic/thread/mpsc.c

Timestamp:

2018-11-11T15:47:39Z (5 years ago)

Author:

Jakub Jermar <jakub@…>

Branches:

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

Children:

f4cb6c5f

Parents:

269bc459

git-author:

Jakub Jermar <jakub@…> (2018-11-10 17:49:44)

git-committer:

Jakub Jermar <jakub@…> (2018-11-11 15:47:39)

Message:

Preallocate waitq handle during initialization

Do not clutter futex_down_composable() with the preallocation of the
wait queue handle and do it single-threadedly in futex_initialize().

File:

• uspace/lib/c/generic/thread/mpsc.c (modified) (1 diff)

uspace/lib/c/generic/thread/mpsc.c

@@ -80 +80 @@
         }
 
+        if (fibril_rmutex_initialize(&q->t_lock) != EOK) {
+                free(q);
+                free(n);
+                free(c);
+                return NULL;
+        }
+
         q->elem_size = elem_size;
-        fibril_rmutex_initialize(&q->t_lock);
         q->head = q->tail = n;
         q->close_node = c;