Changeset 2e51969 in mainline for kernel/generic/src/ipc/sysipc.c

Timestamp:

2007-11-19T12:20:10Z (17 years ago)

Author:

Jakub Jermar <jakub@…>

Branches:

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

Children:

0c09f2b

Parents:

e0bc7fc

Message:

Modify synchronous IPC to make use of all six syscall arguments. The preferred
means of synchronous communication is now via the set of ipc_call_sync_m_n()
macros, where m is the number of payload arguments passed to the kernel and n is
the number of return values. These macros will automatically decide between the
fast and the universal slow version of ipc_call_sync.

File:

• kernel/generic/src/ipc/sysipc.c (modified) (4 diffs)

kernel/generic/src/ipc/sysipc.c

@@ -349 +349 @@
 /** Make a fast call over IPC, wait for reply and return to user.
  *
- * This function can handle only one argument of payload, but is faster than
- * the generic function (i.e. sys_ipc_call_sync()).
+ * This function can handle only three arguments of payload, but is faster than
+ * the generic function (i.e. sys_ipc_call_sync_slow()).
  *
  * @param phoneid       Phone handle for the call.
  * @param method        Method of the call.
  * @param arg1          Service-defined payload argument.
+ * @param arg2          Service-defined payload argument.
+ * @param arg3          Service-defined payload argument.
  * @param data          Address of userspace structure where the reply call will
  *                      be stored.
@@ -362 +364 @@
  */
 unative_t sys_ipc_call_sync_fast(unative_t phoneid, unative_t method,
-    unative_t arg1, ipc_data_t *data)
+    unative_t arg1, unative_t arg2, unative_t arg3, ipc_data_t *data)
 {
         call_t call;
@@ -373 +375 @@
         IPC_SET_METHOD(call.data, method);
         IPC_SET_ARG1(call.data, arg1);
+        IPC_SET_ARG2(call.data, arg2);
+        IPC_SET_ARG3(call.data, arg3);
 
         if (!(res = request_preprocess(&call))) {
@@ -394 +398 @@
  * @return              Zero on success or an error code.
  */
-unative_t sys_ipc_call_sync(unative_t phoneid, ipc_data_t *question,
+unative_t sys_ipc_call_sync_slow(unative_t phoneid, ipc_data_t *question,
     ipc_data_t *reply)
 {