From 07db92f65a7b49f97bc43ed94ff02586b75e21c6 Mon Sep 17 00:00:00 2001
From: Justus Winter <4winter@informatik.uni-hamburg.de>
Date: Thu, 28 Nov 2013 10:31:08 +0100
Subject: proc: add payload-aware intrans functions

* proc/mig-decls.h (begin_using_proc_payload): New function.
(begin_using_exc_payload): Likewise.
* proc/mig-mutate.h: Add mutators.
* proc/proc_exc.defs (exception_t): Add payload-aware in-translator
function.
---
 proc/mig-decls.h   | 17 +++++++++++++++++
 proc/mig-mutate.h  |  4 ++++
 proc/proc_exc.defs |  1 +
 3 files changed, 22 insertions(+)

diff --git a/proc/mig-decls.h b/proc/mig-decls.h
index 7d36a870..eb33ef31 100644
--- a/proc/mig-decls.h
+++ b/proc/mig-decls.h
@@ -35,6 +35,17 @@ begin_using_proc_port (mach_port_t port)
   return (!p || p->p_dead) ? NULL : p;
 }
 
+static inline struct proc * __attribute__ ((unused))
+begin_using_proc_payload (unsigned long payload)
+{
+  struct proc *p;
+  p = ports_lookup_payload (proc_bucket, payload, proc_class);
+  if (p && p->p_dead)
+    ports_port_deref (p);
+  return (!p || p->p_dead) ? 0 : p;
+}
+
+
 static inline void __attribute__ ((unused))
 end_using_proc (struct proc *p)
 {
@@ -50,6 +61,12 @@ begin_using_exc_port (mach_port_t port)
   return ports_lookup_port (NULL, port, exc_class);
 }
 
+static inline exc_t __attribute__ ((unused))
+begin_using_exc_payload (unsigned long payload)
+{
+  return ports_lookup_payload (NULL, payload, exc_class);
+}
+
 static inline void __attribute__ ((unused))
 end_using_exc (exc_t exc)
 {
diff --git a/proc/mig-mutate.h b/proc/mig-mutate.h
index ce9f88e6..62dc2a59 100644
--- a/proc/mig-mutate.h
+++ b/proc/mig-mutate.h
@@ -20,6 +20,8 @@
 
 #define PROCESS_INTRAN						\
   pstruct_t begin_using_proc_port (process_t)
+#define PROCESS_INTRAN_PAYLOAD					\
+  pstruct_t begin_using_proc_payload
 #define PROCESS_DESTRUCTOR					\
   end_using_proc (pstruct_t)
 #define PROCESS_IMPORTS						\
@@ -27,6 +29,8 @@
 
 #define NOTIFY_INTRAN						\
   port_info_t begin_using_port_info_port (mach_port_t)
+#define NOTIFY_INTRAN_PAYLOAD					\
+  port_info_t begin_using_port_info_payload
 #define NOTIFY_DESTRUCTOR					\
   end_using_port_info (port_info_t)
 #define NOTIFY_IMPORTS						\
diff --git a/proc/proc_exc.defs b/proc/proc_exc.defs
index c9108246..9dc3626e 100644
--- a/proc/proc_exc.defs
+++ b/proc/proc_exc.defs
@@ -38,6 +38,7 @@ import "mig-decls.h";
 type exception_t = mach_port_copy_send_t
 	cusertype: mach_port_t
 	intran: exc_t begin_using_exc_port (exception_t)
+	intranpayload: exc_t begin_using_exc_payload
 	destructor: end_using_exc (exc_t);
 
 routine proc_exception_raise (
-- 
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