From 8085c7634979f38c1b152d0a35b98c2447ce497a Mon Sep 17 00:00:00 2001
From: Patrick Williams <iawillia@us.ibm.com>
Date: Thu, 24 Jun 2010 15:51:29 -0500
Subject: Add messaging

---
 src/include/kernel/msg.H | 28 ++++++++++++++++++++++++++++
 1 file changed, 28 insertions(+)
 create mode 100644 src/include/kernel/msg.H

(limited to 'src/include/kernel/msg.H')

diff --git a/src/include/kernel/msg.H b/src/include/kernel/msg.H
new file mode 100644
index 000000000..7a32197f5
--- /dev/null
+++ b/src/include/kernel/msg.H
@@ -0,0 +1,28 @@
+#ifndef __KERNEL_MSG_H
+#define __KERNEL_MSG_H
+
+#include <kernel/types.h>
+#include <sys/msg.h>
+#include <util/locked/list.H>
+#include <util/locked/queue.H>
+
+struct MessagePending
+{
+    typedef msg_t* key_type;
+    key_type key;
+    task_t* task;
+
+    MessagePending* prev;
+    MessagePending* next;
+};
+
+class MessageQueue
+{
+    public:
+	Spinlock lock;
+	Util::Locked::List<MessagePending, MessagePending::key_type> messages;
+	Util::Locked::List<MessagePending, MessagePending::key_type> responses;
+	Util::Locked::Queue<task_t> waiting;
+};
+
+#endif
-- 
cgit v1.2.3