Changeset e8039a86 in mainline for kernel/generic/src/ipc/ops/sharein.c

Timestamp:

2012-08-20T23:21:41Z (13 years ago)

Author:

Jakub Jermar <jakub@…>

Branches:

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

Children:

0343a1b

Parents:

642dc72

Message:

Separate system IPC logic into dedicated ops structure hooks.

File:

• kernel/generic/src/ipc/ops/sharein.c (modified) (1 diff)

kernel/generic/src/ipc/ops/sharein.c

@@ -34 +34 @@
 
 #include <ipc/sysipc_ops.h>
+#include <ipc/ipc.h>
+#include <mm/as.h>
+#include <synch/spinlock.h>
+#include <proc/task.h>
+#include <abi/errno.h>
+#include <arch.h>
+
+static int answer_preprocess(call_t *answer, ipc_data_t *olddata)
+{
+        if (!IPC_GET_RETVAL(answer->data)) {
+                irq_spinlock_lock(&answer->sender->lock, true);
+                as_t *as = answer->sender->as;
+                irq_spinlock_unlock(&answer->sender->lock, true);
+                        
+                uintptr_t dst_base = (uintptr_t) -1;
+                int rc = as_area_share(AS, IPC_GET_ARG1(answer->data),
+                    IPC_GET_ARG1(*olddata), as, IPC_GET_ARG2(answer->data),
+                    &dst_base, IPC_GET_ARG3(answer->data));
+                IPC_SET_ARG4(answer->data, dst_base);
+                IPC_SET_RETVAL(answer->data, rc);
+        }
+        
+        return EOK;
+}
 
 sysipc_ops_t ipc_m_share_in_ops = {
         .request_preprocess = null_request_preprocess,
         .request_process = null_request_process,
-        .answer_preprocess = null_answer_preprocess,
+        .answer_preprocess = answer_preprocess,
         .answer_process = null_answer_process,
 };