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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 <cppunit/extensions/HelperMacros.h>
#include "ZKMocks.h"
#ifdef THREADED
#include "PthreadMocks.h"
#endif
using namespace std;
class Zookeeper_close : public CPPUNIT_NS::TestFixture
{
CPPUNIT_TEST_SUITE(Zookeeper_close);
#ifdef THREADED
CPPUNIT_TEST(testIOThreadStoppedOnExpire);
#endif
CPPUNIT_TEST(testCloseUnconnected);
CPPUNIT_TEST(testCloseUnconnected1);
CPPUNIT_TEST(testCloseConnected1);
CPPUNIT_TEST(testCloseFromWatcher1);
CPPUNIT_TEST_SUITE_END();
zhandle_t *zh;
static void watcher(zhandle_t *, int, int, const char *,void*){}
FILE *logfile;
public:
Zookeeper_close() {
logfile = openlogfile("Zookeeper_close");
}
~Zookeeper_close() {
if (logfile) {
fflush(logfile);
fclose(logfile);
logfile = 0;
}
}
void setUp()
{
zoo_set_log_stream(logfile);
zoo_deterministic_conn_order(0);
zh=0;
}
void tearDown()
{
zookeeper_close(zh);
}
class CloseOnSessionExpired: public WatcherAction{
public:
CloseOnSessionExpired(bool callClose=true):
callClose_(callClose),rc(ZOK){}
virtual void onSessionExpired(zhandle_t* zh){
memcpy(&lzh,zh,sizeof(lzh));
if(callClose_)
rc=zookeeper_close(zh);
}
zhandle_t lzh;
bool callClose_;
int rc;
};
#ifndef THREADED
void testCloseUnconnected()
{
zh=zookeeper_init("localhost:2121",watcher,10000,0,0,0);
CPPUNIT_ASSERT(zh!=0);
// do not actually free the memory while in zookeeper_close()
Mock_free_noop freeMock;
// make a copy of zhandle before close() overwrites some of
// it members with NULLs
zhandle_t lzh;
memcpy(&lzh,zh,sizeof(lzh));
int rc=zookeeper_close(zh);
zhandle_t* savezh=zh; zh=0;
freeMock.disable(); // disable mock's fake free()- use libc's free() instead
// verify that zookeeper_close has done its job
CPPUNIT_ASSERT_EQUAL((int)ZOK,rc);
// memory
CPPUNIT_ASSERT_EQUAL(1,freeMock.getFreeCount(savezh));
CPPUNIT_ASSERT_EQUAL(1,freeMock.getFreeCount(lzh.hostname));
CPPUNIT_ASSERT_EQUAL(1,freeMock.getFreeCount(lzh.addrs.data));
// This cannot be maintained properly CPPUNIT_ASSERT_EQUAL(9,freeMock.callCounter);
}
void testCloseUnconnected1()
{
zh=zookeeper_init("localhost:2121",watcher,10000,0,0,0);
CPPUNIT_ASSERT(zh!=0);
// simulate connected state
zh->fd->sock=ZookeeperServer::FD;
zh->state=ZOO_CONNECTED_STATE;
Mock_flush_send_queue zkMock;
// do not actually free the memory while in zookeeper_close()
Mock_free_noop freeMock;
// make a copy of zhandle before close() overwrites some of
// it members with NULLs
zhandle_t lzh;
memcpy(&lzh,zh,sizeof(lzh));
int rc=zookeeper_close(zh);
zhandle_t* savezh=zh; zh=0;
freeMock.disable(); // disable mock's fake free()- use libc's free() instead
// verify that zookeeper_close has done its job
CPPUNIT_ASSERT_EQUAL((int)ZOK,rc);
// memory
CPPUNIT_ASSERT_EQUAL(1,freeMock.getFreeCount(savezh));
CPPUNIT_ASSERT_EQUAL(1,freeMock.getFreeCount(lzh.hostname));
CPPUNIT_ASSERT_EQUAL(1,freeMock.getFreeCount(lzh.addrs.data));
// the close request sent?
CPPUNIT_ASSERT_EQUAL(1,zkMock.counter);
}
void testCloseConnected1()
{
ZookeeperServer zkServer;
// poll() will called from zookeeper_close()
Mock_poll pollMock(&zkServer,ZookeeperServer::FD);
zh=zookeeper_init("localhost:2121",watcher,10000,TEST_CLIENT_ID,0,0);
CPPUNIT_ASSERT(zh!=0);
CPPUNIT_ASSERT_EQUAL(ZOO_NOTCONNECTED_STATE, zoo_state(zh));
Mock_gettimeofday timeMock;
int fd=0;
int interest=0;
timeval tv;
int rc=zookeeper_interest(zh,&fd,&interest,&tv);
CPPUNIT_ASSERT_EQUAL((int)ZOK,rc);
CPPUNIT_ASSERT_EQUAL(ZOO_CONNECTING_STATE,zoo_state(zh));
CPPUNIT_ASSERT_EQUAL(ZOOKEEPER_READ|ZOOKEEPER_WRITE,interest);
rc=zookeeper_process(zh,interest);
CPPUNIT_ASSERT_EQUAL((int)ZOK,rc);
CPPUNIT_ASSERT_EQUAL(ZOO_ASSOCIATING_STATE,zoo_state(zh));
rc=zookeeper_interest(zh,&fd,&interest,&tv);
CPPUNIT_ASSERT_EQUAL((int)ZOK,rc);
rc=zookeeper_process(zh,interest);
CPPUNIT_ASSERT_EQUAL((int)ZOK,rc);
CPPUNIT_ASSERT_EQUAL(ZOO_CONNECTED_STATE,zoo_state(zh));
// do not actually free the memory while in zookeeper_close()
Mock_free_noop freeMock;
// make a copy of zhandle before close() overwrites some of
// it members with NULLs
zhandle_t lzh;
memcpy(&lzh,zh,sizeof(lzh));
zookeeper_close(zh);
zhandle_t* savezh=zh; zh=0;
freeMock.disable(); // disable mock's fake free()- use libc's free() instead
// memory
CPPUNIT_ASSERT_EQUAL(1,freeMock.getFreeCount(savezh));
CPPUNIT_ASSERT_EQUAL(1,freeMock.getFreeCount(lzh.hostname));
CPPUNIT_ASSERT_EQUAL(1,freeMock.getFreeCount(lzh.addrs.data));
// the close request sent?
CPPUNIT_ASSERT_EQUAL(1,(int)zkServer.closeSent);
}
void testCloseFromWatcher1()
{
Mock_gettimeofday timeMock;
ZookeeperServer zkServer;
// make the server return a non-matching session id
zkServer.returnSessionExpired();
// poll() will called from zookeeper_close()
Mock_poll pollMock(&zkServer,ZookeeperServer::FD);
CloseOnSessionExpired closeAction;
zh=zookeeper_init("localhost:2121",activeWatcher,10000,
TEST_CLIENT_ID,&closeAction,0);
CPPUNIT_ASSERT(zh!=0);
int fd=0;
int interest=0;
timeval tv;
// initiate connection
int rc=zookeeper_interest(zh,&fd,&interest,&tv);
CPPUNIT_ASSERT_EQUAL((int)ZOK,rc);
CPPUNIT_ASSERT_EQUAL(ZOO_CONNECTING_STATE,zoo_state(zh));
CPPUNIT_ASSERT_EQUAL(ZOOKEEPER_READ|ZOOKEEPER_WRITE,interest);
rc=zookeeper_process(zh,interest);
// make sure the handshake in progress
CPPUNIT_ASSERT_EQUAL((int)ZOK,rc);
CPPUNIT_ASSERT_EQUAL(ZOO_ASSOCIATING_STATE,zoo_state(zh));
rc=zookeeper_interest(zh,&fd,&interest,&tv);
CPPUNIT_ASSERT_EQUAL((int)ZOK,rc);
// do not actually free the memory while in zookeeper_close()
Mock_free_noop freeMock;
// should call the watcher with ZOO_EXPIRED_SESSION_STATE state
rc=zookeeper_process(zh,interest);
zhandle_t* savezh=zh; zh=0;
freeMock.disable(); // disable mock's fake free()- use libc's free() instead
CPPUNIT_ASSERT_EQUAL(ZOO_EXPIRED_SESSION_STATE,zoo_state(savezh));
// memory
CPPUNIT_ASSERT_EQUAL(1,freeMock.getFreeCount(savezh));
CPPUNIT_ASSERT_EQUAL(1,freeMock.getFreeCount(closeAction.lzh.hostname));
CPPUNIT_ASSERT_EQUAL(1,freeMock.getFreeCount(closeAction.lzh.addrs.data));
// make sure the close request NOT sent
CPPUNIT_ASSERT_EQUAL(0,(int)zkServer.closeSent);
}
#else
void testCloseUnconnected()
{
// disable threading
MockPthreadZKNull pthreadMock;
zh=zookeeper_init("localhost:2121",watcher,10000,0,0,0);
CPPUNIT_ASSERT(zh!=0);
adaptor_threads* adaptor=(adaptor_threads*)zh->adaptor_priv;
CPPUNIT_ASSERT(adaptor!=0);
// do not actually free the memory while in zookeeper_close()
Mock_free_noop freeMock;
// make a copy of zhandle before close() overwrites some of
// it members with NULLs
zhandle_t lzh;
memcpy(&lzh,zh,sizeof(lzh));
int rc=zookeeper_close(zh);
zhandle_t* savezh=zh; zh=0;
// we're done, disable mock's fake free(), use libc's free() instead
freeMock.disable();
// verify that zookeeper_close has done its job
CPPUNIT_ASSERT_EQUAL((int)ZOK,rc);
// memory
CPPUNIT_ASSERT_EQUAL(1,freeMock.getFreeCount(savezh));
CPPUNIT_ASSERT_EQUAL(1,freeMock.getFreeCount(lzh.hostname));
CPPUNIT_ASSERT_EQUAL(1,freeMock.getFreeCount(lzh.addrs.data));
CPPUNIT_ASSERT_EQUAL(1,freeMock.getFreeCount(adaptor));
// Cannot be maintained accurately: CPPUNIT_ASSERT_EQUAL(10,freeMock.callCounter);
// threads
CPPUNIT_ASSERT_EQUAL(1,MockPthreadsNull::getDestroyCounter(adaptor->io));
CPPUNIT_ASSERT_EQUAL(1,MockPthreadsNull::getDestroyCounter(adaptor->completion));
// mutexes
CPPUNIT_ASSERT_EQUAL(1,MockPthreadsNull::getDestroyCounter(&savezh->to_process.lock));
CPPUNIT_ASSERT_EQUAL(0,MockPthreadsNull::getInvalidAccessCounter(&savezh->to_process.lock));
CPPUNIT_ASSERT_EQUAL(1,MockPthreadsNull::getDestroyCounter(&savezh->to_send.lock));
CPPUNIT_ASSERT_EQUAL(0,MockPthreadsNull::getInvalidAccessCounter(&savezh->to_send.lock));
CPPUNIT_ASSERT_EQUAL(1,MockPthreadsNull::getDestroyCounter(&savezh->sent_requests.lock));
CPPUNIT_ASSERT_EQUAL(0,MockPthreadsNull::getInvalidAccessCounter(&savezh->sent_requests.lock));
CPPUNIT_ASSERT_EQUAL(1,MockPthreadsNull::getDestroyCounter(&savezh->completions_to_process.lock));
CPPUNIT_ASSERT_EQUAL(0,MockPthreadsNull::getInvalidAccessCounter(&savezh->completions_to_process.lock));
// conditionals
CPPUNIT_ASSERT_EQUAL(1,MockPthreadsNull::getDestroyCounter(&savezh->sent_requests.cond));
CPPUNIT_ASSERT_EQUAL(0,MockPthreadsNull::getInvalidAccessCounter(&savezh->sent_requests.cond));
CPPUNIT_ASSERT_EQUAL(1,MockPthreadsNull::getDestroyCounter(&savezh->completions_to_process.cond));
CPPUNIT_ASSERT_EQUAL(0,MockPthreadsNull::getInvalidAccessCounter(&savezh->completions_to_process.cond));
}
void testCloseUnconnected1()
{
for(int i=0; i<100;i++){
zh=zookeeper_init("localhost:2121",watcher,10000,0,0,0);
CPPUNIT_ASSERT(zh!=0);
adaptor_threads* adaptor=(adaptor_threads*)zh->adaptor_priv;
CPPUNIT_ASSERT(adaptor!=0);
int rc=zookeeper_close(zh);
zh=0;
CPPUNIT_ASSERT_EQUAL((int)ZOK,rc);
}
}
void testCloseConnected1()
{
// frozen time -- no timeouts and no pings
Mock_gettimeofday timeMock;
for(int i=0;i<100;i++){
ZookeeperServer zkServer;
Mock_poll pollMock(&zkServer,ZookeeperServer::FD);
// use a checked version of pthread calls
CheckedPthread threadMock;
// do not actually free the memory while in zookeeper_close()
Mock_free_noop freeMock;
zh=zookeeper_init("localhost:2121",watcher,10000,TEST_CLIENT_ID,0,0);
CPPUNIT_ASSERT(zh!=0);
// make sure the client has connected
CPPUNIT_ASSERT(ensureCondition(ClientConnected(zh),1000)<1000);
// make a copy of zhandle before close() overwrites some of
// its members with NULLs
zhandle_t lzh;
memcpy(&lzh,zh,sizeof(lzh));
int rc=zookeeper_close(zh);
zhandle_t* savezh=zh; zh=0;
// we're done, disable mock's fake free(), use libc's free() instead
freeMock.disable();
CPPUNIT_ASSERT_EQUAL((int)ZOK,rc);
adaptor_threads* adaptor=(adaptor_threads*)lzh.adaptor_priv;
// memory
CPPUNIT_ASSERT_EQUAL(1,freeMock.getFreeCount(savezh));
CPPUNIT_ASSERT_EQUAL(1,freeMock.getFreeCount(lzh.hostname));
CPPUNIT_ASSERT_EQUAL(1,freeMock.getFreeCount(lzh.addrs.data));
CPPUNIT_ASSERT_EQUAL(1,freeMock.getFreeCount(adaptor));
// threads
CPPUNIT_ASSERT_EQUAL(1,CheckedPthread::getDestroyCounter(adaptor->io));
CPPUNIT_ASSERT_EQUAL(1,CheckedPthread::getDestroyCounter(adaptor->completion));
// mutexes
CPPUNIT_ASSERT_EQUAL(1,CheckedPthread::getDestroyCounter(&savezh->to_process.lock));
CPPUNIT_ASSERT_EQUAL(0,CheckedPthread::getInvalidAccessCounter(&savezh->to_process.lock));
CPPUNIT_ASSERT_EQUAL(1,CheckedPthread::getDestroyCounter(&savezh->to_send.lock));
CPPUNIT_ASSERT_EQUAL(0,CheckedPthread::getInvalidAccessCounter(&savezh->to_send.lock));
CPPUNIT_ASSERT_EQUAL(1,CheckedPthread::getDestroyCounter(&savezh->sent_requests.lock));
CPPUNIT_ASSERT_EQUAL(0,CheckedPthread::getInvalidAccessCounter(&savezh->sent_requests.lock));
CPPUNIT_ASSERT_EQUAL(1,CheckedPthread::getDestroyCounter(&savezh->completions_to_process.lock));
CPPUNIT_ASSERT_EQUAL(0,CheckedPthread::getInvalidAccessCounter(&savezh->completions_to_process.lock));
// conditionals
CPPUNIT_ASSERT_EQUAL(1,CheckedPthread::getDestroyCounter(&savezh->sent_requests.cond));
CPPUNIT_ASSERT_EQUAL(0,CheckedPthread::getInvalidAccessCounter(&savezh->sent_requests.cond));
CPPUNIT_ASSERT_EQUAL(1,CheckedPthread::getDestroyCounter(&savezh->completions_to_process.cond));
CPPUNIT_ASSERT_EQUAL(0,CheckedPthread::getInvalidAccessCounter(&savezh->completions_to_process.cond));
}
}
struct PointerFreed{
PointerFreed(Mock_free_noop& freeMock,void* ptr):
freeMock_(freeMock),ptr_(ptr){}
bool operator()() const{return freeMock_.isFreed(ptr_); }
Mock_free_noop& freeMock_;
void* ptr_;
};
// test if zookeeper_close may be called from a watcher callback on
// SESSION_EXPIRED event
void testCloseFromWatcher1()
{
// frozen time -- no timeouts and no pings
Mock_gettimeofday timeMock;
for(int i=0;i<100;i++){
ZookeeperServer zkServer;
// make the server return a non-matching session id
zkServer.returnSessionExpired();
Mock_poll pollMock(&zkServer,ZookeeperServer::FD);
// use a checked version of pthread calls
CheckedPthread threadMock;
// do not actually free the memory while in zookeeper_close()
Mock_free_noop freeMock;
CloseOnSessionExpired closeAction;
zh=zookeeper_init("localhost:2121",activeWatcher,10000,
TEST_CLIENT_ID,&closeAction,0);
CPPUNIT_ASSERT(zh!=0);
// we rely on the fact that zh is freed the last right before
// zookeeper_close() returns...
CPPUNIT_ASSERT(ensureCondition(PointerFreed(freeMock,zh),1000)<1000);
zhandle_t* lzh=zh;
zh=0;
// we're done, disable mock's fake free(), use libc's free() instead
freeMock.disable();
CPPUNIT_ASSERT_EQUAL((int)ZOK,closeAction.rc);
adaptor_threads* adaptor=(adaptor_threads*)closeAction.lzh.adaptor_priv;
// memory
CPPUNIT_ASSERT_EQUAL(1,freeMock.getFreeCount(lzh));
CPPUNIT_ASSERT_EQUAL(1,freeMock.getFreeCount(closeAction.lzh.hostname));
CPPUNIT_ASSERT_EQUAL(1,freeMock.getFreeCount(closeAction.lzh.addrs.data));
CPPUNIT_ASSERT_EQUAL(1,freeMock.getFreeCount(adaptor));
// threads
CPPUNIT_ASSERT_EQUAL(1,CheckedPthread::getDestroyCounter(adaptor->io));
CPPUNIT_ASSERT_EQUAL(1,CheckedPthread::getDestroyCounter(adaptor->completion));
// mutexes
CPPUNIT_ASSERT_EQUAL(1,CheckedPthread::getDestroyCounter(&lzh->to_process.lock));
CPPUNIT_ASSERT_EQUAL(0,CheckedPthread::getInvalidAccessCounter(&lzh->to_process.lock));
CPPUNIT_ASSERT_EQUAL(1,CheckedPthread::getDestroyCounter(&lzh->to_send.lock));
CPPUNIT_ASSERT_EQUAL(0,CheckedPthread::getInvalidAccessCounter(&lzh->to_send.lock));
CPPUNIT_ASSERT_EQUAL(1,CheckedPthread::getDestroyCounter(&lzh->sent_requests.lock));
CPPUNIT_ASSERT_EQUAL(0,CheckedPthread::getInvalidAccessCounter(&lzh->sent_requests.lock));
CPPUNIT_ASSERT_EQUAL(1,CheckedPthread::getDestroyCounter(&lzh->completions_to_process.lock));
CPPUNIT_ASSERT_EQUAL(0,CheckedPthread::getInvalidAccessCounter(&lzh->completions_to_process.lock));
// conditionals
CPPUNIT_ASSERT_EQUAL(1,CheckedPthread::getDestroyCounter(&lzh->sent_requests.cond));
CPPUNIT_ASSERT_EQUAL(0,CheckedPthread::getInvalidAccessCounter(&lzh->sent_requests.cond));
CPPUNIT_ASSERT_EQUAL(1,CheckedPthread::getDestroyCounter(&lzh->completions_to_process.cond));
CPPUNIT_ASSERT_EQUAL(0,CheckedPthread::getInvalidAccessCounter(&lzh->completions_to_process.cond));
}
}
void testIOThreadStoppedOnExpire()
{
// frozen time -- no timeouts and no pings
Mock_gettimeofday timeMock;
for(int i=0;i<100;i++){
ZookeeperServer zkServer;
// make the server return a non-matching session id
zkServer.returnSessionExpired();
Mock_poll pollMock(&zkServer,ZookeeperServer::FD);
// use a checked version of pthread calls
CheckedPthread threadMock;
// do not call zookeeper_close() from the watcher
CloseOnSessionExpired closeAction(false);
zh=zookeeper_init("localhost:2121",activeWatcher,10000,
&testClientId,&closeAction,0);
// this is to ensure that if any assert fires, zookeeper_close()
// will still be called while all the mocks are in the scope!
CloseFinally guard(&zh);
CPPUNIT_ASSERT(zh!=0);
CPPUNIT_ASSERT(ensureCondition(SessionExpired(zh),1000)<1000);
CPPUNIT_ASSERT(ensureCondition(IOThreadStopped(zh),1000)<1000);
// make sure the watcher has been processed
CPPUNIT_ASSERT(ensureCondition(closeAction.isWatcherTriggered(),1000)<1000);
// make sure the threads have not been destroyed yet
adaptor_threads* adaptor=(adaptor_threads*)zh->adaptor_priv;
CPPUNIT_ASSERT_EQUAL(0,CheckedPthread::getDestroyCounter(adaptor->io));
CPPUNIT_ASSERT_EQUAL(0,CheckedPthread::getDestroyCounter(adaptor->completion));
// about to call zookeeper_close() -- no longer need the guard
guard.disarm();
// do not actually free the memory while in zookeeper_close()
Mock_free_noop freeMock;
zookeeper_close(zh);
zhandle_t* lzh=zh; zh=0;
// we're done, disable mock's fake free(), use libc's free() instead
freeMock.disable();
// memory
CPPUNIT_ASSERT_EQUAL(1,freeMock.getFreeCount(lzh));
CPPUNIT_ASSERT_EQUAL(1,freeMock.getFreeCount(closeAction.lzh.hostname));
CPPUNIT_ASSERT_EQUAL(1,freeMock.getFreeCount(closeAction.lzh.addrs.data));
CPPUNIT_ASSERT_EQUAL(1,freeMock.getFreeCount(adaptor));
// threads
CPPUNIT_ASSERT_EQUAL(1,CheckedPthread::getDestroyCounter(adaptor->io));
CPPUNIT_ASSERT_EQUAL(1,CheckedPthread::getDestroyCounter(adaptor->completion));
// mutexes
CPPUNIT_ASSERT_EQUAL(1,CheckedPthread::getDestroyCounter(&lzh->to_process.lock));
CPPUNIT_ASSERT_EQUAL(0,CheckedPthread::getInvalidAccessCounter(&lzh->to_process.lock));
CPPUNIT_ASSERT_EQUAL(1,CheckedPthread::getDestroyCounter(&lzh->to_send.lock));
CPPUNIT_ASSERT_EQUAL(0,CheckedPthread::getInvalidAccessCounter(&lzh->to_send.lock));
CPPUNIT_ASSERT_EQUAL(1,CheckedPthread::getDestroyCounter(&lzh->sent_requests.lock));
CPPUNIT_ASSERT_EQUAL(0,CheckedPthread::getInvalidAccessCounter(&lzh->sent_requests.lock));
CPPUNIT_ASSERT_EQUAL(1,CheckedPthread::getDestroyCounter(&lzh->completions_to_process.lock));
CPPUNIT_ASSERT_EQUAL(0,CheckedPthread::getInvalidAccessCounter(&lzh->completions_to_process.lock));
// conditionals
CPPUNIT_ASSERT_EQUAL(1,CheckedPthread::getDestroyCounter(&lzh->sent_requests.cond));
CPPUNIT_ASSERT_EQUAL(0,CheckedPthread::getInvalidAccessCounter(&lzh->sent_requests.cond));
CPPUNIT_ASSERT_EQUAL(1,CheckedPthread::getDestroyCounter(&lzh->completions_to_process.cond));
CPPUNIT_ASSERT_EQUAL(0,CheckedPthread::getInvalidAccessCounter(&lzh->completions_to_process.cond));
}
}
#endif
};
CPPUNIT_TEST_SUITE_REGISTRATION(Zookeeper_close);
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