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POboost test and async IO : memory access violation at address : no mapping at fault address
 

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  1. POboost test and async IO : memory access violation at address : no mapping at fault address
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    <p>i am trying to setup a boost test for async I/O for tcpip.</p> <p>my function to send tcp msg:</p> <pre><code> int TcpClient::sendMsgToServer(string msg) { if (isConnected == true) { Logger::debug("Asynch send request for msg: " + msg, __LINE__, __FILE__); sendSequence++; msg.append("\r\n"); int length = msg.length() + 2; //+2 is for \r\n char* buffer = (char*) msg.c_str(); Logger::debug(buffer, __LINE__, __FILE__); m_Socket.async_send(boost::asio::buffer(buffer, length), boost::bind(&amp;fingigcc::TcpClient::sendMsgToServerErrorHandler, this, boost::asio::placeholders::error, boost::asio::placeholders::bytes_transferred)); std::string sentMsg = "Sent Msg: " + msg; Logger::debug(sentMsg, __LINE__, __FILE__); return 0; } else { return -1; } } void TcpClient::sendMsgToServerErrorHandler( const boost::system::error_code&amp; error, std::size_t bytes_transferred) { Logger::debug("Sending complete: ", __LINE__, __FILE__); sendResponseSequence++; int i = error.value(); std::stringstream ss; ss.clear(); ss &lt;&lt; i; Logger::debug("RESULTCODE: " + ss.str(), __LINE__, __FILE__); if (i == 0) { Logger::debug("RESULT: " + error.message(), __LINE__, __FILE__); } else { Logger::crit(error.message(), __LINE__, __FILE__); m_Socket.close(); isConnected = false; connectionStateChanged(isConnected); } } </code></pre> <p>now this function works fine if i just run it in the main thread ( not running doing a boost test)</p> <p>my boost test function looks like this:</p> <pre><code>BOOST_AUTO_TEST_CASE( CommunicationCore_sendTcpIpMsg_test ) { CommunicationCoreFixture f; int compare = f.c-&gt;initializeTcpIpConnection(serverAddress, serverPort); // i initialize the connection here. runs fine with any issue sleep(2); compare = f.c-&gt;sendMsgToServer("IDENTIFY console-2"); BOOST_MESSAGE("Sending returned value : " &lt;&lt; compare); BOOST_CHECK(compare == 0); } </code></pre> <p>and it fails with the following error:</p> <pre><code> Entering test case "CommunicationCore_sendTcpIpMsg_test" unknown location(0): fatal error in "CommunicationCore_sendTcpIpMsg_test": memory access violation at address: 0x01003255: no mapping at fault address *****************Test is aborted </code></pre> <p>Is there anything i should be aware of while testing such async functions?</p> <p>my build information is:</p> <pre><code>Platform: linux Compiler: GNU C++ version 4.7.2 STL : GNU libstdc++ version 20120920 Boost : 1.49.0 </code></pre> <hr> <p>EDIT:</p> <p>I have tried modifying it in the following manner as well..but still getting the same error:</p> <pre><code>int TcpClient::sendMsgToServer(string msg) { if (isConnected == true) { Logger::debug("Asynch send request for msg: " + msg, __LINE__, __FILE__); sendSequence++; msg.append("\r\n"); char *buffer = new char[msg.size() + 1]; buffer[msg.size()] = 0; memcpy(buffer, msg.c_str(), msg.size()); Logger::debug(buffer, __LINE__, __FILE__); m_Socket.async_send(boost::asio::buffer(buffer, (msg.size() + 1)), boost::bind(&amp;fingigcc::TcpClient::sendMsgToServerErrorHandler, this, boost::asio::placeholders::error, boost::asio::placeholders::bytes_transferred)); std::string sentMsg = "Sent Msg: " + msg; Logger::debug(sentMsg, __LINE__, __FILE__); return 0; } else { return -1; } } </code></pre>
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    1. USShrouk Khan
    1. USShrouk Khan
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      1. POboost test and async IO : memory access violation at address : no mapping at fault address
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      1. VTUpMod
    1. CODoes the default constructor of `CommunicationCoreFixture` make sure its `c` member points at a valid object?
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      1. POboost test and async IO : memory access violation at address : no mapping at fault address
      1. USJoseph Mansfield
    2. COyes. infact i should mention that if i remove the part: m_Socket.async_send(boost::asio::buffer(buffer, length), boost::bind(&fingigcc::TcpClient::sendMsgToServerErrorHandler, this, boost::asio::placeholders::error, boost::asio::placeholders::bytes_transferred)); it runs without issue.
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      1. POboost test and async IO : memory access violation at address : no mapping at fault address
      1. USShrouk Khan
 

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