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<p class="MsoNormal">Hi All,<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">I have a routine using OpenAPI which according to valgrind has a non fatal memory leak.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Valgrind’s output says:<o:p></o:p></p>
<p class="MsoNormal">==2097== Conditional jump or move depends on uninitialised value(s)<o:p></o:p></p>
<p class="MsoNormal">==2097== at 0x4481D5: MO_defstring (in /user/ingres/scripts_3.1/demo/API/test_api)<o:p></o:p></p>
<p class="MsoNormal">==2097== by 0x446937: MOattach (in /user/ingres/scripts_3.1/demo/API/test_api)<o:p></o:p></p>
<p class="MsoNormal">==2097== by 0x41CB01: IIapi_createConnHndl (in /user/ingres/scripts_3.1/demo/API/test_api)<o:p></o:p></p>
<p class="MsoNormal">==2097== by 0x4303BD: IIapi_setConnectParam (in /user/ingres/scripts_3.1/demo/API/test_api)<o:p></o:p></p>
<p class="MsoNormal">==2097== by 0x4177BF: setConnEnvAPI (ingresAPI.c:5083)<o:p></o:p></p>
<p class="MsoNormal">==2097== by 0x405256: connection_environment (test_api.c:636)<o:p></o:p></p>
<p class="MsoNormal">==2097== by 0x4047C6: main (test_api.c:296)<o:p></o:p></p>
<p class="MsoNormal">==2097== Uninitialised value was created by a stack allocation<o:p></o:p></p>
<p class="MsoNormal">==2097== at 0x41C8B4: IIapi_createConnHndl (in /user/ingres/scripts_3.1/demo/API/test_api)<o:p></o:p></p>
<p class="MsoNormal">==2097==<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">In the code snippet below the offending line is simply setting the qp_closure to NULL before the call to IIapi_setConnectParam()…which is what I thought you were supposed to do.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Is this a bug in my code or in API?<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Martin Bowes<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Code snippet is:<o:p></o:p></p>
<p class="MsoNormal"><span style="font-family:"Courier New"">IIAPI_STATUS<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier New"">setConnEnvAPI(<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier New""> II_PTR *connHandle,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier New""> II_LONG param,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier New""> II_PTR value<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier New"">)<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier New"">{<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier New""> II_CHAR Function[] = "setConnEnvAPI()";<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier New""><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier New""> IIAPI_SETCONPRMPARM setConnParm;<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier New""> IIAPI_MODCONNPARM modConnParm;<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier New""> IIAPI_WAITPARM waitParm = {IIAPI_WAIT_FOREVER};<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier New""><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier New"">#ifdef xDEBUG<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier New""> printf("%s: Called with connHandle = '%0X'\n", Function, *connHandle);<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier New"">#endif<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier New""> _init_errorAPI(&gINIT_C);<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier New""><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier New""> setConnParm.sc_genParm.gp_callback = NULL;<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier New""> setConnParm.sc_genParm.gp_closure = NULL;
<span style="background:yellow;mso-highlight:yellow">/* This is the line valgrind objects to! */</span><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier New""><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier New""> setConnParm.sc_connHandle = *connHandle;<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier New""> setConnParm.sc_paramID = param;<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier New""> setConnParm.sc_paramValue = value;<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier New""><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier New""> IIapi_setConnectParam( &setConnParm );<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier New""> while( setConnParm.sc_genParm.gp_completed == FALSE )<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier New""> IIapi_wait( &waitParm );<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier New""> if (setConnParm.sc_genParm.gp_status != IIAPI_ST_SUCCESS)<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier New""> {<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier New""> sprintf(gINIT_C.errorAPI.appError, "%s: Failed in call to IIapi_setConnectParam()\n", Function);<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier New""> _set_errorAPI(&gINIT_C, Function,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier New""> setConnParm.sc_genParm.gp_status,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier New""> setConnParm.sc_genParm.gp_errorHandle<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier New""> );<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier New""> return (IIAPI_ERROR);<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier New""> };<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier New""><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier New""> *connHandle = setConnParm.sc_connHandle;<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier New"">#ifdef xDEBUG<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier New""> printf("%s: Completed with connHandle = '%0X'!\n", Function, setConnParm.sc_connHandle);<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier New"">#endif<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier New""> return (IIAPI_OK);<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier New"">}; /* setConnEnvAPI() */<o:p></o:p></span></p>
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