Changeset 8d6bc2d5 in mainline for generic/src/ipc/sysipc.c

Timestamp:

2006-05-24T22:02:59Z (19 years ago)

Author:

Jakub Jermar <jakub@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

9dfc69a

Parents:

567807b1

Message:

Reimplement memory sharing. Currently, only
anonymous address space areas can be shared.

File:

• generic/src/ipc/sysipc.c (modified) (1 diff)

generic/src/ipc/sysipc.c

@@ -130 +130 @@
         } else if (IPC_GET_METHOD(*olddata) == IPC_M_AS_AREA_SEND) {
                 if (!IPC_GET_RETVAL(answer->data)) { /* Accepted, handle as_area receipt */
-                        return as_area_steal(answer->sender,
-                                             IPC_GET_ARG2(*olddata),IPC_GET_ARG3(*olddata),
-                                             IPC_GET_ARG1(answer->data));
+                        ipl_t ipl;
+                        as_t *as;
+                        
+                        ipl = interrupts_disable();
+                        spinlock_lock(&answer->sender->lock);
+                        as = answer->sender->as;
+                        spinlock_unlock(&answer->sender->lock);
+                        interrupts_restore(ipl);
+                        
+                        return as_area_share(as, IPC_GET_ARG2(*olddata),IPC_GET_ARG3(*olddata),
+                                IPC_GET_ARG1(answer->data));
                 }
         }