degesch: shuffle some code
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parent
1b2fabe4cc
commit
699636d9a2
234
degesch.c
234
degesch.c
@ -1666,72 +1666,6 @@ init_colors (struct app_context *ctx)
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g_log_message_real = log_message_attributed;
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}
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// --- Signals -----------------------------------------------------------------
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static int g_signal_pipe[2]; ///< A pipe used to signal... signals
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/// Program termination has been requested by a signal
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static volatile sig_atomic_t g_termination_requested;
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/// The window has changed in size
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static volatile sig_atomic_t g_winch_received;
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static void
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sigterm_handler (int signum)
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{
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(void) signum;
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g_termination_requested = true;
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int original_errno = errno;
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if (write (g_signal_pipe[1], "t", 1) == -1)
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soft_assert (errno == EAGAIN);
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errno = original_errno;
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}
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static void
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sigwinch_handler (int signum)
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{
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(void) signum;
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g_winch_received = true;
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int original_errno = errno;
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if (write (g_signal_pipe[1], "w", 1) == -1)
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soft_assert (errno == EAGAIN);
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errno = original_errno;
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}
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static void
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setup_signal_handlers (void)
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{
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if (pipe (g_signal_pipe) == -1)
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exit_fatal ("%s: %s", "pipe", strerror (errno));
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set_cloexec (g_signal_pipe[0]);
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set_cloexec (g_signal_pipe[1]);
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// So that the pipe cannot overflow; it would make write() block within
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// the signal handler, which is something we really don't want to happen.
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// The same holds true for read().
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set_blocking (g_signal_pipe[0], false);
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set_blocking (g_signal_pipe[1], false);
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signal (SIGPIPE, SIG_IGN);
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struct sigaction sa;
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sa.sa_flags = SA_RESTART;
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sa.sa_handler = sigwinch_handler;
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sigemptyset (&sa.sa_mask);
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if (sigaction (SIGWINCH, &sa, NULL) == -1)
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exit_fatal ("sigaction: %s", strerror (errno));
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sa.sa_handler = sigterm_handler;
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if (sigaction (SIGINT, &sa, NULL) == -1
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|| sigaction (SIGTERM, &sa, NULL) == -1)
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exit_fatal ("sigaction: %s", strerror (errno));
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}
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// --- Output formatter --------------------------------------------------------
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// This complicated piece of code makes attributed text formatting simple.
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@ -5796,49 +5730,6 @@ app_editline_init (struct input *self)
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#endif // HAVE_EDITLINE
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// --- I/O event handlers ------------------------------------------------------
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static void
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on_signal_pipe_readable (const struct pollfd *fd, struct app_context *ctx)
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{
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char dummy;
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(void) read (fd->fd, &dummy, 1);
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if (g_termination_requested && !ctx->quitting)
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{
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// There may be a timer set to reconnect to the server
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// TODO: multiserver
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struct server *s = &ctx->server;
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// TODO: a faster timer for quitting
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irc_reset_connection_timeouts (s);
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// FIXME: use a normal quit message
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if (irc_is_connected (s))
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irc_send (s, "QUIT :Terminated by signal");
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initiate_quit (ctx);
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}
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if (g_winch_received)
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{
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input_on_terminal_resized (&ctx->input);
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update_screen_size ();
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}
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}
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static void
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on_tty_readable (const struct pollfd *fd, struct app_context *ctx)
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{
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(void) ctx;
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if (fd->revents & ~(POLLIN | POLLHUP | POLLERR))
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print_debug ("fd %d: unexpected revents: %d", fd->fd, fd->revents);
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// XXX: this may loop for a bit: stop the event or eat the input?
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// (This prevents a segfault when the input has been stopped.)
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if (ctx->input.active)
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input_on_readable (&ctx->input);
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}
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// --- Configuration loading ---------------------------------------------------
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static bool
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@ -5963,7 +5854,114 @@ load_configuration (struct app_context *ctx)
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get_config_integer (ctx, "server.reconnect_delay");
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}
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// --- Main program ------------------------------------------------------------
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// --- Signals -----------------------------------------------------------------
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static int g_signal_pipe[2]; ///< A pipe used to signal... signals
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/// Program termination has been requested by a signal
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static volatile sig_atomic_t g_termination_requested;
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/// The window has changed in size
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static volatile sig_atomic_t g_winch_received;
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static void
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sigterm_handler (int signum)
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{
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(void) signum;
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g_termination_requested = true;
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int original_errno = errno;
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if (write (g_signal_pipe[1], "t", 1) == -1)
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soft_assert (errno == EAGAIN);
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errno = original_errno;
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}
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static void
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sigwinch_handler (int signum)
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{
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(void) signum;
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g_winch_received = true;
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int original_errno = errno;
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if (write (g_signal_pipe[1], "w", 1) == -1)
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soft_assert (errno == EAGAIN);
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errno = original_errno;
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}
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static void
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setup_signal_handlers (void)
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{
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if (pipe (g_signal_pipe) == -1)
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exit_fatal ("%s: %s", "pipe", strerror (errno));
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set_cloexec (g_signal_pipe[0]);
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set_cloexec (g_signal_pipe[1]);
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// So that the pipe cannot overflow; it would make write() block within
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// the signal handler, which is something we really don't want to happen.
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// The same holds true for read().
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set_blocking (g_signal_pipe[0], false);
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set_blocking (g_signal_pipe[1], false);
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signal (SIGPIPE, SIG_IGN);
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struct sigaction sa;
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sa.sa_flags = SA_RESTART;
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sa.sa_handler = sigwinch_handler;
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sigemptyset (&sa.sa_mask);
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if (sigaction (SIGWINCH, &sa, NULL) == -1)
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exit_fatal ("sigaction: %s", strerror (errno));
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sa.sa_handler = sigterm_handler;
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if (sigaction (SIGINT, &sa, NULL) == -1
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|| sigaction (SIGTERM, &sa, NULL) == -1)
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exit_fatal ("sigaction: %s", strerror (errno));
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}
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// --- I/O event handlers ------------------------------------------------------
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static void
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on_signal_pipe_readable (const struct pollfd *fd, struct app_context *ctx)
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{
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char dummy;
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(void) read (fd->fd, &dummy, 1);
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if (g_termination_requested && !ctx->quitting)
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{
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// There may be a timer set to reconnect to the server
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// TODO: multiserver
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struct server *s = &ctx->server;
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// TODO: a faster timer for quitting
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irc_reset_connection_timeouts (s);
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// FIXME: use a normal quit message
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if (irc_is_connected (s))
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irc_send (s, "QUIT :Terminated by signal");
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initiate_quit (ctx);
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}
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if (g_winch_received)
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{
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input_on_terminal_resized (&ctx->input);
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update_screen_size ();
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}
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}
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static void
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on_tty_readable (const struct pollfd *fd, struct app_context *ctx)
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{
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(void) ctx;
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if (fd->revents & ~(POLLIN | POLLHUP | POLLERR))
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print_debug ("fd %d: unexpected revents: %d", fd->fd, fd->revents);
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// XXX: this may loop for a bit: stop the event or eat the input?
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// (This prevents a segfault when the input has been stopped.)
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if (ctx->input.active)
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input_on_readable (&ctx->input);
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}
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static void
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init_poller_events (struct app_context *ctx)
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@ -5979,17 +5977,19 @@ init_poller_events (struct app_context *ctx)
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poller_fd_set (&ctx->tty_event, POLLIN);
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}
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// --- Main program ------------------------------------------------------------
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static void
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display_logo (void)
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{
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const char *logo =
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" __ __ \n"
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" __/ / ____ ____ ____ ____ ____ / /_ \n"
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" / / / , / / / / , / / __/ / __/ / __ \\ \n"
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" / / / / __/ / / / / __/ /_ / / /_ / / / / \n"
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" /___/ /___/ /_ / /___/ /___/ /___/ /_/ /_/ \n"
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" /___/ \n"
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" ";
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" __ __ \n"
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" __/ / ____ ____ ____ ____ ____ / /_ \n"
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" / / / , / / / / , / / __/ / __/ / __ \\ \n"
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" / / / / __/ / / / / __/ /_ / / /_ / / / / \n"
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" /___/ /___/ /_ / /___/ /___/ /___/ /_/ /_/ \n"
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" /___/ \n"
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" ";
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struct str_vector v;
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str_vector_init (&v);
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