From 8c27290245b7bcc7cd2f72f3b4a7562294b43bbe Mon Sep 17 00:00:00 2001
From: David Härdeman <david@hardeman.nu>
Date: Tue, 23 Jun 2020 16:25:36 +0200
Subject: Split directories better

---
 signal-handler.c | 195 -------------------------------------------------------
 1 file changed, 195 deletions(-)
 delete mode 100644 signal-handler.c

(limited to 'signal-handler.c')

diff --git a/signal-handler.c b/signal-handler.c
deleted file mode 100644
index 67c2e0b..0000000
--- a/signal-handler.c
+++ /dev/null
@@ -1,195 +0,0 @@
-#define _GNU_SOURCE
-#include <sys/signalfd.h>
-#include <signal.h>
-#include <fcntl.h>
-#include <unistd.h>
-#include <systemd/sd-daemon.h>
-
-#include "main.h"
-#include "signal-handler.h"
-#include "uring.h"
-#include "server.h"
-#include "server-config.h"
-#include "config-parser.h"
-#include "igmp.h"
-#include "announce.h"
-#include "idle.h"
-#include "ptimer.h"
-
-struct signal_ev {
-	struct uring_task task;
-	struct uring_task_buf tbuf;
-	int pipe[2];
-};
-
-static void
-signal_delete()
-{
-	assert_return(cfg->signal);
-
-	uring_task_destroy(&cfg->signal->task);
-}
-
-static void
-signalfd_read(struct uring_task *task, int res)
-{
-	struct signal_ev *signal = container_of(task, struct signal_ev, task);
-	struct server *server, *stmp;
-	static unsigned count = 0;
-	siginfo_t *si;
-
-	assert_return(task);
-	assert_task_alive(DBG_SIG, task);
-
-	si = (siginfo_t *)task->tbuf->buf;
-	if (res != sizeof(*si))
-		die("error in signalfd (%i)", res);
-
-	switch (si->si_signo) {
-	case SIGUSR1: {
-		struct dns_async *dns;
-
-		debug(DBG_SIG, "Got a SIGUSR1");
-		if (si->si_code != SI_ASYNCNL || !si->si_ptr) {
-			error("SIGUSR1: unexpected values in siginfo");
-			goto out;
-		}
-
-		dns = si->si_ptr;
-		if (!dns->cb) {
-			error("DNS callback not set");
-			goto out;
-		}
-
-		debug(DBG_DNS, "DNS lookup complete, dns: %p, dns->cb: %p",
-		      dns, dns->cb);
-		dns->cb(dns);
-		break;
-	}
-
-	case SIGUSR2:
-		debug(DBG_SIG, "got a SIGUSR2");
-		dump_tree();
-		break;
-
-	case SIGTERM:
-		debug(DBG_SIG, "Got a SIGINT/SIGHUP");
-		verbose("got a signal to quit");
-		sd_notifyf(0, "STOPPING=1\nSTATUS=Received signal, exiting");
-		exit(EXIT_SUCCESS);
-		break;
-
-	case SIGINT:
-	case SIGHUP:
-		count++;
-		if (count > 5) {
-			dump_tree();
-			exit(EXIT_FAILURE);
-		}
-
-		verbose("got a signal to dump tree");
-		sd_notifyf(0, "STOPPING=1\nSTATUS=Received signal, exiting");
-		dump_tree();
-		signal_delete();
-		ptimer_delete();
-		igmp_delete();
-		announce_delete();
-		idle_delete();
-		server_cfg_monitor_delete();
-		list_for_each_entry_safe(server, stmp, &cfg->servers, list)
-			server_delete(server);
-		uring_delete();
-		return;
-
-	default:
-		error("got an unknown signal: %i", si->si_signo);
-		break;
-	}
-
-out:
-	uring_tbuf_read(&signal->task, signalfd_read);
-}
-
-static void
-hack_signal_handler(int signum, siginfo_t *si, void *ucontext)
-{
-	ssize_t r;
-
-	assert_return(signum > 0 && si);
-
-	r = write(cfg->signal->pipe[PIPE_WR], si, sizeof(*si));
-	if (r != sizeof(*si))
-		error("write: %zi\n", r);
-
-}
-
-static void
-signal_free(struct uring_task *task)
-{
-	struct signal_ev *signal = container_of(task, struct signal_ev, task);
-
-	assert_return(task);
-
-	debug(DBG_SIG, "called");
-	close(signal->pipe[PIPE_WR]);
-	cfg->signal = NULL;
-	xfree(signal);
-}
-
-void
-signal_refdump()
-{
-	assert_return(cfg->signal);
-
-	uring_task_refdump(&cfg->signal->task);
-}
-
-void
-signal_init()
-{
-	//sigset_t mask;
-	struct signal_ev *signal;
-
-	assert_return(!cfg->signal);
-
-	signal = zmalloc(sizeof(*signal));
-	if (!signal)
-		die("malloc: %m");
-
-	if (pipe2(signal->pipe, O_CLOEXEC) < 0)
-		die("pipe2: %m");
-
-	/*
-	sigfillset(&mask);
-	if (sigprocmask(SIG_BLOCK, &mask, NULL) < 0)
-		die("sigprocmask: %m");
-
-	sfd = signalfd(-1, &mask, SFD_CLOEXEC);
-	if (sfd < 0)
-		die("signalfd: %m");
-	*/
-
-	struct sigaction action;
-	sigfillset(&action.sa_mask);
-	action.sa_sigaction = hack_signal_handler;
-	action.sa_flags = SA_SIGINFO;
-
-	sigaction(SIGINT, &action, NULL);
-	sigaction(SIGHUP, &action, NULL);
-	sigaction(SIGTERM, &action, NULL);
-	sigaction(SIGUSR1, &action, NULL);
-	sigaction(SIGUSR2, &action, NULL);
-
-	action.sa_handler = SIG_IGN;
-	action.sa_flags = 0;
-	sigaction(SIGPIPE, &action, NULL);
-
-	debug(DBG_SIG, "using pipe fds %i -> %i",
-	      signal->pipe[PIPE_WR], signal->pipe[PIPE_RD]);
-	uring_task_init(&signal->task, "signal", uring_parent(), signal_free);
-	uring_task_set_fd(&signal->task, signal->pipe[PIPE_RD]);
-	uring_task_set_buf(&signal->task, &signal->tbuf);
-	cfg->signal = signal;
-	uring_tbuf_read(&signal->task, signalfd_read);
-}
-
-- 
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