What do the following two statements mean? signal(SIGALRM, quitNow); alarm(120); /* Don't freeze */
It will make the else branch quit execution, won't it? If so, the child process will return right away and the following code will not be executed. That is what I observed. --Xinan --- On Mon, 8/31/09, Luca Deri <[email protected]> wrote: From: Luca Deri <[email protected]> Subject: Re: [Ntop-dev] "Utility: Data Dump is broken" To: [email protected], [email protected] Date: Monday, August 31, 2009, 3:45 PM On Aug 26, 2009, at 9:18 PM, [email protected] wrote: > After several-day hacking, I finally make the Data Dump working again. The > version based is 3.3.10. > > First, here is deadcode in http.c starting at line 2681, the parent will > return(0) in the then branch and the child will quit (signal(SIGALRM, > quitNow)) in the else branch. Therefore, the nested strncasecmp() after > that will NEVER be executed, and thus actual function of CONST_DUMP_DATA_HTML > will not be executed. > > What is the purpose to have such kind of dead code? I don't see any dead code. Can you please explain? Luca > > Thanks > > --Xinan > > > > ----------------- > else { > *usedFork = 1; > /* This is zero in the parent copy of the structure */ > if(myGlobals.childntoppid) { > /* father process */ > myGlobals.numChildren++; > compressFile = 0; > if(domainNameParm != NULL) free(domainNameParm); > if(db_key != NULL) free(db_key); > if(db_val != NULL) free(db_val); > return(0); > } else { > detachFromTerminalUnderUnix(0); > /* Close inherited sockets */ > #ifdef HAVE_OPENSSL > if(myGlobals.sslInitialized) closeNwSocket(&myGlobals.sock_ssl); > #endif /* HAVE_OPENSSL */ > if(myGlobals.runningPref.webPort > 0) >closeNwSocket(&myGlobals.sock); > //!#if defined(HAVE_ALARM) && defined(PARM_FORK_CHILD_PROCESS) && > (!defined(WIN32)) > signal(SIGALRM, quitNow); > alarm(120); /* Don't freeze */ > } > } > -------------------------------------------------- > _______________________________________________ > Ntop-dev mailing list > [email protected] > http://listgateway.unipi.it/mailman/listinfo/ntop-dev
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