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/*
*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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.
*
*/
#include <posix/EventChannel.h>
#include <posix/check.h>
#include <sys/Runnable.h>
#include <sys/Socket.h>
#include <sys/Thread.h>
#include <qpid_test_plugin.h>
#include <sys/socket.h>
#include <signal.h>
#include <netinet/in.h>
#include <netdb.h>
#include <iostream>
using namespace qpid::sys;
const char hello[] = "hello";
const size_t size = sizeof(hello);
struct RunMe : public Runnable
{
bool ran;
RunMe() : ran(false) {}
void run() { ran = true; }
};
class EventChannelTest : public CppUnit::TestCase
{
CPPUNIT_TEST_SUITE(EventChannelTest);
CPPUNIT_TEST(testDispatch);
CPPUNIT_TEST(testRead);
CPPUNIT_TEST(testPartialRead);
CPPUNIT_TEST(testFailedRead);
CPPUNIT_TEST(testWrite);
CPPUNIT_TEST(testFailedWrite);
CPPUNIT_TEST(testReadWrite);
CPPUNIT_TEST(testAccept);
CPPUNIT_TEST_SUITE_END();
private:
EventChannel::shared_ptr ec;
int pipe[2];
char readBuf[size];
public:
void setUp()
{
memset(readBuf, size, 0);
ec = EventChannel::create();
if (::pipe(pipe) != 0) throw QPID_POSIX_ERROR(errno);
// Ignore SIGPIPE, otherwise we will crash writing to broken pipe.
signal(SIGPIPE, SIG_IGN);
}
// Verify that calling wait returns event.
template <class T> bool isNextEvent(T& event)
{
return &event == dynamic_cast<T*>(ec->wait(5*TIME_SEC));
}
template <class T> bool isNextEventOk(T& event)
{
Event* next = ec->wait(TIME_SEC);
if (next) next->throwIfException();
return &event == next;
}
void testDispatch()
{
RunMe runMe;
CPPUNIT_ASSERT(!runMe.ran);
// Instances of Event just pass thru the channel immediately.
DispatchEvent e(runMe.functor());
ec->post(e);
CPPUNIT_ASSERT(isNextEventOk(e));
e.dispatch();
CPPUNIT_ASSERT(runMe.ran);
}
void testRead() {
ReadEvent re(pipe[0], readBuf, size);
ec->post(re);
CPPUNIT_ASSERT_EQUAL(ssize_t(size), ::write(pipe[1], hello, size));
CPPUNIT_ASSERT(isNextEventOk(re));
CPPUNIT_ASSERT_EQUAL(size, re.getBytesRead());
CPPUNIT_ASSERT_EQUAL(std::string(hello), std::string(readBuf));
}
void testPartialRead() {
ReadEvent re(pipe[0], readBuf, size, 0, true);
ec->post(re);
CPPUNIT_ASSERT_EQUAL(ssize_t(size/2), ::write(pipe[1], hello, size/2));
CPPUNIT_ASSERT(isNextEventOk(re));
CPPUNIT_ASSERT_EQUAL(size/2, re.getBytesRead());
CPPUNIT_ASSERT_EQUAL(std::string(hello, size/2),
std::string(readBuf, size/2));
}
void testFailedRead()
{
ReadEvent re(pipe[0], readBuf, size);
ec->post(re);
// EOF before all data read.
::close(pipe[1]);
CPPUNIT_ASSERT(isNextEvent(re));
CPPUNIT_ASSERT(re.getException());
try {
re.throwIfException();
CPPUNIT_FAIL("Expected QpidError.");
}
catch (const qpid::QpidError&) { }
// Try to read from closed file descriptor.
try {
ec->post(re);
CPPUNIT_ASSERT(isNextEvent(re));
re.throwIfException();
CPPUNIT_FAIL("Expected an exception.");
}
catch (const qpid::QpidError&) {}
// Bad file descriptor. Note in this case we fail
// in post and throw immediately.
try {
ReadEvent bad(-1, readBuf, size);
ec->post(bad);
CPPUNIT_FAIL("Expected QpidError.");
}
catch (const qpid::QpidError&) {}
}
void testWrite() {
WriteEvent wr(pipe[1], hello, size);
ec->post(wr);
CPPUNIT_ASSERT(isNextEventOk(wr));
CPPUNIT_ASSERT_EQUAL(size, wr.getBytesWritten());
CPPUNIT_ASSERT_EQUAL(ssize_t(size), ::read(pipe[0], readBuf, size));;
CPPUNIT_ASSERT_EQUAL(std::string(hello), std::string(readBuf));
}
void testFailedWrite() {
WriteEvent wr(pipe[1], hello, size);
::close(pipe[0]);
ec->post(wr);
CPPUNIT_ASSERT(isNextEvent(wr));
CPPUNIT_ASSERT(wr.getException());
}
void testReadWrite()
{
ReadEvent re(pipe[0], readBuf, size);
WriteEvent wr(pipe[1], hello, size);
ec->post(re);
ec->post(wr);
ec->wait(TIME_SEC);
ec->wait(TIME_SEC);
CPPUNIT_ASSERT_EQUAL(std::string(hello), std::string(readBuf));
}
void connectSendRead(AcceptEvent& ae, int port, Socket client)
{
ec->post(ae);
// Connect a client, send some data, read the data.
client.connect("localhost", port);
CPPUNIT_ASSERT(isNextEvent(ae));
ae.throwIfException();
char readBuf[size];
ReadEvent re(ae.getAcceptedDesscriptor(), readBuf, size);
ec->post(re);
CPPUNIT_ASSERT_EQUAL(ssize_t(size),
client.send(hello, sizeof(hello)));
CPPUNIT_ASSERT(isNextEvent(re));
re.throwIfException();
CPPUNIT_ASSERT_EQUAL(std::string(hello), std::string(readBuf));
}
void testAccept() {
Socket s = Socket::createTcp();
int port = s.listen(0, 10);
CPPUNIT_ASSERT(port != 0);
AcceptEvent ae(s.fd());
Socket client = Socket::createTcp();
connectSendRead(ae, port, client);
Socket client2 = Socket::createTcp();
connectSendRead(ae, port, client2);
client.close();
client2.close();
Socket client3 = Socket::createTcp();
connectSendRead(ae, port, client3);
}
};
// Make this test suite a plugin.
CPPUNIT_PLUGIN_IMPLEMENT();
CPPUNIT_TEST_SUITE_REGISTRATION(EventChannelTest);
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