Crash on Windows when rapidly creating and destroying connections
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Key: AMQCPP-122
URL: https://issues.apache.org/activemq/browse/AMQCPP-122
Project: ActiveMQ C++ Client
Issue Type: Bug
Affects Versions: 2.1
Reporter: Albert Strasheim
Assignee: Nathan Mittler
Fix For: 2.1
Me again. :)
The following program crashes within a few seconds on my Windows XP machine.
This machine has a Core 2 Duo processor (i. e. 2 cores).
On my Pentium 4 + Hyperthreading Linux machine is only dies after about a
minute with:
terminate called after throwing an instance of
'activemq::exceptions::ActiveMQException'
what(): Cannot assign requested address
Aborted
However, this is to be expected, since the program causes thousands of sockets
to be created. This doesn't seem to be the reason it crashes on Windows though.
The code:
{code:none}
#include <activemq/core/ActiveMQConnectionFactory.h>
#include <cms/Connection.h>
#include <cms/Session.h>
#include <cms/MessageProducer.h>
#include <cms/DeliveryMode.h>
int main(int argc, char* argv[]) {
activemq::core::ActiveMQConnectionFactory
connectionFactory("tcp://localhost:61613?wireFormat=stomp");
while(true)
{
cms::Connection* connection = connectionFactory.createConnection();
cms::Session* session =
connection->createSession(cms::Session::AUTO_ACKNOWLEDGE);
cms::Topic* topic = session->createTopic("topic");
cms::MessageProducer* producer = session->createProducer(topic);
delete producer;
delete topic;
delete session;
delete connection;
}
return 0;
}
{code}
The stack trace when it crashes:
> activemq-cppd.dll!activemq::io::BufferedInputStream::read() Line 79 +
> 0x12 bytes C++
activemq-cppd.dll!activemq::connector::stomp::StompCommandReader::readStompHeaderLine()
Line 194 + 0x19 bytes C++
activemq-cppd.dll!activemq::connector::stomp::StompCommandReader::readStompCommandHeader(activemq::connector::stomp::StompFrame
& frame={...}) Line 101 C++
activemq-cppd.dll!activemq::connector::stomp::StompCommandReader::readCommand()
Line 59 C++
activemq-cppd.dll!activemq::transport::IOTransport::run() Line 166 +
0x19 bytes C++
activemq-cppd.dll!activemq::concurrent::Thread::runCallback(void *
param=0x003ad328) Line 152 + 0x13 bytes C++
msvcr80d.dll!_callthreadstartex() Line 348 + 0xf bytes C
msvcr80d.dll!_threadstartex(void * ptd=0x003adac0) Line 331 C
kernel32.dll!7c80b683()
[Frames below may be incorrect and/or missing, no symbols loaded for
kernel32.dll]
The line in BufferedInputStream::read is:
char returnValue = buffer[head++];
There is a local variable called bufferSize with a value of 1024. However, the
value of head is usually much larger than bufferSize (like more than 10000).
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