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/* IBM_PROLOG_BEGIN_TAG */
/* This is an automatically generated prolog. */
/* */
/* $Source: src/usr/testcore/kernel/msgtest.H $ */
/* */
/* OpenPOWER HostBoot Project */
/* */
/* COPYRIGHT International Business Machines Corp. 2012,2014 */
/* */
/* Licensed under the Apache License, Version 2.0 (the "License"); */
/* you may not use this file except in compliance with the License. */
/* You may obtain a copy of the License at */
/* */
/* http://www.apache.org/licenses/LICENSE-2.0 */
/* */
/* Unless required by applicable law or agreed to in writing, software */
/* distributed under the License is distributed on an "AS IS" BASIS, */
/* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or */
/* implied. See the License for the specific language governing */
/* permissions and limitations under the License. */
/* */
/* IBM_PROLOG_END_TAG */
/** @file msgtest.H
* @brief Testcases for the messaging subsystem of the kernel.
*/
#include <cxxtest/TestSuite.H>
#include <sys/task.h>
#include <sys/msg.h>
class MessagingTest : public CxxTest::TestSuite
{
public:
/** Test sync-messaging interfaces */
void testSync()
{
msg_q_t client = msg_q_create(),
server = msg_q_create();
msg_t* sync_msg = NULL;
int rc = 0;
tid_t server_task = task_create(MessagingTest::processMsg,
server);
// Send a message with the normal sync messaging interface.
sync_msg = msg_allocate();
sync_msg->type = ECHO;
sync_msg->data[0] = 1;
rc = msg_sendrecv(server, sync_msg);
if (rc)
{
TS_FAIL("Failure to send message (msg_sendrecv).");
}
else if (sync_msg->data[0] != (2 << 1))
{
TS_FAIL("Message response doesn't match expected value for "
"sync message. %d", sync_msg->data[0]);
}
msg_free(sync_msg);
// Send a message with the non-blocking sync message interface.
barrier_t barrier;
barrier_init(&barrier, 2);
sync_msg = msg_allocate();
sync_msg->type = ECHO;
sync_msg->data[0] = 2;
sync_msg->data[1] = reinterpret_cast<uint64_t>(&barrier);
rc = msg_sendrecv_noblk(server, sync_msg, client);
barrier_wait(&barrier);
sync_msg = msg_wait(client);
if (rc)
{
TS_FAIL("Failure to send message (msg_sendrecv_noblk)");
}
else if (sync_msg->data[0] != (2 << 2))
{
TS_FAIL("Message response doesn't match expected value for "
"no-blk sync message. %d", sync_msg->data[0]);
}
msg_free(sync_msg);
barrier_destroy(&barrier);
// Shutdown the child thread.
msg_t* shutdown_msg = msg_allocate();
shutdown_msg->type = SHUTDOWN;
msg_send(server, shutdown_msg);
task_wait_tid(server_task, NULL, NULL);
};
private:
enum msg_types { SHUTDOWN, ECHO };
static void* processMsg(void* _msgQ)
{
msg_q_t msgQ = static_cast<msg_q_t>(_msgQ);
while(msg_t* msg = msg_wait(msgQ))
{
switch (msg->type)
{
case SHUTDOWN: // Shutdown.
msg_free(msg);
return NULL;
case ECHO:
if (msg->data[1])
{
barrier_wait(
reinterpret_cast<barrier_t*>(msg->data[1]));
}
msg->data[0] = (2 << msg->data[0]);
msg_respond(msgQ, msg);
break;
}
}
return NULL;
}
};
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