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Support SIGUSR2 to stop and start logging for an existing server. Also

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we currently only have two log levels so just use -v and -vv rather than
-v and -vvvv, and clarify the man page entry for -v.
This commit is contained in:
nicm
2017-06-04 08:25:57 +00:00
parent 184039044a
commit adf5628087
6 changed files with 51 additions and 6 deletions
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6
signal.c
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@ -29,6 +29,7 @@ static struct event ev_sigchld;
static struct event ev_sigcont;
static struct event ev_sigterm;
static struct event ev_sigusr1;
static struct event ev_sigusr2;
static struct event ev_sigwinch;
void
@ -59,6 +60,8 @@ set_signals(void (*handler)(int, short, void *), void *arg)
signal_add(&ev_sigterm, NULL);
signal_set(&ev_sigusr1, SIGUSR1, handler, arg);
signal_add(&ev_sigusr1, NULL);
signal_set(&ev_sigusr2, SIGUSR2, handler, arg);
signal_add(&ev_sigusr2, NULL);
signal_set(&ev_sigwinch, SIGWINCH, handler, arg);
signal_add(&ev_sigwinch, NULL);
}
@ -92,6 +95,8 @@ clear_signals(int after_fork)
fatal("sigaction failed");
if (sigaction(SIGUSR1, &sigact, NULL) != 0)
fatal("sigaction failed");
if (sigaction(SIGUSR2, &sigact, NULL) != 0)
fatal("sigaction failed");
if (sigaction(SIGWINCH, &sigact, NULL) != 0)
fatal("sigaction failed");
} else {
@ -100,6 +105,7 @@ clear_signals(int after_fork)
event_del(&ev_sigcont);
event_del(&ev_sigterm);
event_del(&ev_sigusr1);
event_del(&ev_sigusr2);
event_del(&ev_sigwinch);
}
}