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

Timestamp:

2012-08-20T23:21:41Z (12 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/clnestab.c (modified) (1 diff)

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

@@ -34 +34 @@
 
 #include <ipc/sysipc_ops.h>
+#include <ipc/ipc.h>
+#include <synch/mutex.h>
+#include <abi/errno.h>
+
+static int request_preprocess(call_t *call, phone_t *phone)
+{
+        IPC_SET_ARG5(call->data, (sysarg_t) phone);
+
+        return EOK;     
+}
+
+static int answer_preprocess(call_t *answer, ipc_data_t *olddata)
+{
+        phone_t *phone = (phone_t *) IPC_GET_ARG5(*olddata);
+
+        if (IPC_GET_RETVAL(answer->data) != EOK) {
+                /*
+                 * The other party on the cloned phone rejected our request
+                 * for connection on the protocol level.  We need to break the
+                 * connection without sending IPC_M_HUNGUP back.
+                 */
+                mutex_lock(&phone->lock);
+                if (phone->state == IPC_PHONE_CONNECTED) {
+                        irq_spinlock_lock(&phone->callee->lock, true);
+                        list_remove(&phone->link);
+                        phone->state = IPC_PHONE_SLAMMED;
+                        irq_spinlock_unlock(&phone->callee->lock, true);
+                }
+                mutex_unlock(&phone->lock);
+        }
+        
+        return EOK;
+}
 
 sysipc_ops_t ipc_m_clone_establish_ops = {
-        .request_preprocess = null_request_preprocess,
+        .request_preprocess = request_preprocess,
         .request_process = null_request_process,
-        .answer_preprocess = null_answer_preprocess,
+        .answer_preprocess = answer_preprocess,
         .answer_process = null_answer_process,
 };