activeq: factor out active queue insertion function

Duplicated code is harmful for maintenance.  We may be able
to do an atomic compare and double-swap (cmp8xchg16) operation
in the future...

1 files changed, 15 insertions, 0 deletions

diff --git a/activeq.h b/activeq.h
new file mode 100644
index 0000000..7da9038
--- /dev/null
+++ b/activeq.h
@@ -0,0 +1,15 @@
+/*
+ * Copyright (C) 2012, Eric Wong <normalperson@yhbt.net>
+ * License: GPLv3 or later (see COPYING for details)
+ */
+
+/*
+ * This silently inserts the mfd into the active queue without guaranteeing
+ */
+static inline void mog_activeq_insert(struct mog_queue *q, struct mog_fd *mfd)
+{
+        mog_fd_check_in(mfd);
+        CHECK(int, 0, pthread_mutex_lock(&q->activeq_lock));
+        SIMPLEQ_INSERT_TAIL(&q->activeq_head, mfd, active_fd);
+        CHECK(int, 0, pthread_mutex_unlock(&q->activeq_lock));
+}