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POPantheios not logging into one file with MFC app comprise (one exe + two DLLs)
 

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  1. POPantheios not logging into one file with MFC app comprise (one exe + two DLLs)
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    <p>I have got an MFC app comprised of one exe and two DLLs. The exe calls functions from those two DLLs. Now I am trying to add some logging by using the Pantheios logging lib.</p> <p>What I want to achieve:<br> The exe and the two DLLs are all logging to the same log file in hard drive.</p> <p>Here is what I have done:<br></p> <p>1) Using implicit linking in main exe program:</p> <hr> <pre><code>#include "stdafx.h" #include &lt;pantheios/implicit_link/core.h&gt; #include &lt;pantheios/implicit_link/fe.simple.h&gt; #include &lt;pantheios/implicit_link/be.file.h&gt; #define USER_SPECIFIED_LEVEL #ifndef USER_SPECIFIED_LEVEL #include &lt;pantheios/implicit_link/fe.simple.h&gt; #endif #ifdef USER_SPECIFIED_LEVEL PANTHEIOS_CALL(int) pantheios_fe_init(void* reserved,void** ptoken) { *ptoken = NULL; return 0; } PANTHEIOS_CALL(void) pantheios_fe_uninit(void* token) {} PANTHEIOS_CALL(PAN_CHAR_T const*) pantheios_fe_getProcessIdentity (void * token) { return PANTHEIOS_LITERAL_STRING(MY_PROGRAM_ID); } PANTHEIOS_CALL(int) pantheios_fe_isSeverityLogged(void* token , int severity , int backEndId) { //SEV_CRITICAL=2 &lt; SEV_ERROR=3 &lt; SEV_WARNING=4 &lt; SEV_INFORMATIONAL=6 if(severity &lt;= pantheios::SEV_INFORMATIONAL) return 1;//allow output for anything above information lvl return 0; } #endif </code></pre> <hr> <p>In the main exe program where I need to add logging I use (after looked this <a href="https://stackoverflow.com/questions/10219300/connect-pantheios-logging-in-a-dll-to-the-main-applications-logging">link</a> in SO talking about <code>PANTHEIOS_BE_FILE_F_SHARE_ON_WINDOWS</code>):</p> <pre><code>pantheios_be_file_setFilePath(PSTR("C:\\TestLog.log"),**PANTHEIOS_BE_FILE_F_SHARE_ON_WINDOWS**, 0, PANTHEIOS_BEID_ALL); pantheios::log_NOTICE(PSTR("process id: ["), pantheios::processId, PSTR("]")); pantheios::log_NOTICE(PSTR("thread id: ["), pantheios::threadId, PSTR("]")); pantheios::log_INFORMATIONAL(PSTR("testing log messagse")); </code></pre> <p>This works fine, and I can get logging in c:\TestLog.log file as expected. However, I cannot get logging at all in those two DLLs, it simply gives erros for each logging call:</p> <pre><code> pantheios::log_INFORMATIONAL(PSTR("testing message")); </code></pre> <p>saying the token is emtpy, so I Googled and found a solution:</p> <p>2) I need to call:</p> <pre><code>pantheios::init(); </code></pre> <p>for each DLL initialization inside their <code>DllMain</code> function. This way, there is no more "empty token" error when I try to log in the DLL, but still there's nothing logged by the DLLs in the log file (again, the main exe program is fine). </p> <p>3) I tweaked stuff a bit and I have to change the logging file names in the DLL loggings so they all log to different files:</p> <p>DLL #1:</p> <pre><code>pantheios_be_file_setFilePath(PSTR("C:\\TestLogDll1.log"),PANTHEIOS_BE_FILE_F_SHARE_ON_WINDOWS, 0, PANTHEIOS_BEID_ALL); </code></pre> <p>DLL #2:</p> <pre><code>pantheios_be_file_setFilePath(PSTR("C:\\TestLogDll2.log"),PANTHEIOS_BE_FILE_F_SHARE_ON_WINDOWS, 0, PANTHEIOS_BEID_ALL); </code></pre> <p>This way I have 3 logging files all working fine:</p> <ul> <li>TestLog.log for the main program</li> <li>TestLogDll1.log for DLL #1</li> <li>TestLogDll2.log for DLL #2</li> </ul> <p>But still I just cannot get both DLLs logging to the same file as the main exe does (TestLog.log).</p>
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