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-rw-r--r--ipc/port.h20
1 files changed, 20 insertions, 0 deletions
diff --git a/ipc/port.h b/ipc/port.h
index 9ef586c1..c85685d7 100644
--- a/ipc/port.h
+++ b/ipc/port.h
@@ -39,6 +39,7 @@
#ifndef _IPC_PORT_H_
#define _IPC_PORT_H_
+#include <kern/debug.h>
#include <mach/port.h>
/*
@@ -83,4 +84,23 @@ typedef mach_port_name_t mach_port_gen_t; /* generation numbers */
#define MACH_PORT_UREFS_UNDERFLOW(urefs, delta) \
(((delta) < 0) && (-(delta) > (urefs)))
+
+static inline mach_port_t invalid_name_to_port(mach_port_name_t name)
+{
+ if (name == MACH_PORT_NAME_NULL)
+ return MACH_PORT_NULL;
+ if (name == MACH_PORT_NAME_DEAD)
+ return MACH_PORT_DEAD;
+ panic("invalid_name_to_port() called with a valid port");
+}
+
+static inline mach_port_name_t invalid_port_to_name(mach_port_t port)
+{
+ if (port == MACH_PORT_NULL)
+ return MACH_PORT_NAME_NULL;
+ if (port == MACH_PORT_DEAD)
+ return MACH_PORT_NAME_DEAD;
+ panic("invalid_port_to_name() called with a valid name");
+}
+
#endif /* _IPC_PORT_H_ */