[hurd] 42/64: libpager: add a payload-aware intrans function

[Samuel Thibault]

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sthibault pushed a commit to branch upstream
in repository hurd.

commit 0095490a7918ba60483d656214dd9080601e886f
Author: Justus Winter <address@hidden>
Date:   Fri Apr 4 14:19:59 2014 +0200

    libpager: add a payload-aware intrans function
    
    * libpager/mig-decls.h (begin_using_pager_payload): New function.
    * libpager/mig-mutate.h: Add mutators.
---
 libpager/mig-decls.h  | 6 ++++++
 libpager/mig-mutate.h | 3 +++
 2 files changed, 9 insertions(+)

diff --git a/libpager/mig-decls.h b/libpager/mig-decls.h
index 0c7b402..7e6b64f 100644
--- a/libpager/mig-decls.h
+++ b/libpager/mig-decls.h
@@ -32,6 +32,12 @@ begin_using_pager (mach_port_t port)
   return ports_lookup_port (0, port, _pager_class);
 }
 
+static inline struct pager * __attribute__ ((unused))
+begin_using_pager_payload (unsigned long payload)
+{
+  return ports_lookup_payload (0, payload, _pager_class);
+}
+
 static inline void __attribute__ ((unused))
 end_using_pager (struct pager *p)
 {
diff --git a/libpager/mig-mutate.h b/libpager/mig-mutate.h
index 9e9065f..c4f30ce 100644
--- a/libpager/mig-mutate.h
+++ b/libpager/mig-mutate.h
@@ -18,11 +18,14 @@
    along with the GNU Hurd.  If not, see <http://www.gnu.org/licenses/>.  */
 
 #define MEMORY_OBJECT_INTRAN pager_t begin_using_pager (memory_object_t)
+#define MEMORY_OBJECT_INTRAN_PAYLOAD pager_t begin_using_pager_payload
 #define MEMORY_OBJECT_DESTRUCTOR end_using_pager (pager_t)
 #define MEMORY_OBJECT_IMPORTS import "mig-decls.h";
 
 #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                                         \

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