SP_LFServer shutdowns on any catched signal (including SIGUSRx) #28

GoogleCodeExporter · 2015-03-14T13:29:31Z

Hello.

I'm writing simple http-server which processes some signals such as 
SIGUSRx, and using SP_LFServer for it (like in testhttp.cpp). But I've 
found that my server shuts down on the next request after it received 
SIGUSRx signal. After some investigation I've found that SP_LFServer uses 
pause() in SP_LFServer::runForever(), which "causes the calling process (or 
thread) to sleep until a signal is delivered that either terminates the 
process or causes the invocation of a signal-catching function", which is 
my case. Isn't is more convenient to use sigwait(), specifying SIGKILL and 
SIGTERM for it, than simple pause()? Below is the code I'm using and it 
seems it works for me.

void SP_LFServer :: runForever()
{
    run();
    sigset_t ss;
    sigemptyset(&ss);
    sigaddset(&ss, SIGKILL);
    sigaddset(&ss, SIGTERM);
    int signum;
    sigwait(&ss, &signum);
    struct sigaction sa;
    sigaction(signum, 0, &sa);
    sa.sa_handler(signum);
    //pause();
}

Original issue reported on code.google.com by artem.iglikov on 2 Feb 2010 at 3:12

The text was updated successfully, but these errors were encountered:

GoogleCodeExporter added Type-Defect Priority-Medium auto-migrated labels Mar 14, 2015

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SP_LFServer shutdowns on any catched signal (including SIGUSRx) #28

SP_LFServer shutdowns on any catched signal (including SIGUSRx) #28

SP_LFServer shutdowns on any catched signal (including SIGUSRx) #28

SP_LFServer shutdowns on any catched signal (including SIGUSRx) #28

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