* \author Bernardo Innocenti <bernie@develer.com>
*/
-/*
- * $Log$
- * Revision 1.2 2004/08/14 19:37:57 rasky
- * Merge da SC: macros.h, pool.h, BIT_CHANGE, nome dei processi, etc.
- *
- * Revision 1.1 2004/06/06 15:11:08 bernie
- * Import into DevLib.
- *
- */
+/*#*
+ *#* $Log$
+ *#* Revision 1.4 2004/10/19 08:22:09 bernie
+ *#* msg_peek(): New function.
+ *#*
+ *#* Revision 1.3 2004/08/25 14:12:09 rasky
+ *#* Aggiornato il comment block dei log RCS
+ *#*
+ *#* Revision 1.2 2004/08/14 19:37:57 rasky
+ *#* Merge da SC: macros.h, pool.h, BIT_CHANGE, nome dei processi, etc.
+ *#*
+ *#* Revision 1.1 2004/06/06 15:11:08 bernie
+ *#* Import into DevLib.
+ *#*
+ *#*/
#ifndef KERN_MSG_H
#define KERN_MSG_H
return (Msg*)REMHEAD(&port->queue);
}
+/* Peek the first message in the queue of \a port, or NULL if the port is empty */
+INLINE Msg *msg_peek(MsgPort *port)
+{
+ if (ISLISTEMPTY(&port->queue))
+ return NULL;
+
+ return (Msg *)port->queue.head;
+}
+
/*! Send back (reply) \a msg to its sender */
INLINE void msg_reply(Msg* msg)
{