2427317b10
<libguile.h> in Guile 2.x used to include these, but this is no longer the case with 3.0. * src/cron.c, src/mcron.h: Include <string.h>. * src/utils.c: Include <stdio.h>.
80 lines
2.6 KiB
C
80 lines
2.6 KiB
C
/* cron.c -- run jobs at scheduled times
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Copyright © 2003, 2014 Dale Mellor <dale_mellor@users.sourceforge.net>
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Copyright © 2015, 2016, 2017 Mathieu Lirzin <mthl@gnu.org>
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This file is part of GNU Mcron.
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GNU Mcron is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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GNU Mcron is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GNU Mcron. If not, see <http://www.gnu.org/licenses/>. */
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#include "utils.h"
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#include <signal.h>
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#include <string.h>
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/* Forward declarations. */
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static void inner_main (void *closure, int argc, char *argv[]);
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static void react_to_terminal_signal (int sig);
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static SCM set_cron_signals (void);
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int
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main (int argc, char *argv[])
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{
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/* Set Guile load paths to ensure that Mcron modules will be found after
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installation. In a build environment let the 'pre-inst-env' script set
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the correct paths. */
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if (getenv ("MCRON_UNINSTALLED") == NULL)
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{
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wrap_env_path ("GUILE_LOAD_PATH", PACKAGE_LOAD_PATH);
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wrap_env_path ("GUILE_LOAD_COMPILED_PATH", PACKAGE_LOAD_COMPILED_PATH);
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}
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scm_boot_guile (argc, argv, inner_main, NULL);
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return EXIT_SUCCESS;
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}
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/* Launch the Mcron Guile main program. */
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static void
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inner_main (void *closure, int argc, char *argv[])
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{
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scm_set_current_module (scm_c_resolve_module ("mcron scripts cron"));
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scm_c_define_gsubr ("c-set-cron-signals", 0, 0, 0, set_cron_signals);
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scm_call_0 (scm_variable_ref (scm_c_lookup ("main")));
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}
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/* Set up all the signal handlers. This is necessary to perform the signal
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processing in C because the sigaction function won't work when called from
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Guile. */
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static SCM
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set_cron_signals ()
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{
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static struct sigaction sa;
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memset (&sa, 0, sizeof (sa));
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sa.sa_handler = react_to_terminal_signal;
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sigaction (SIGTERM, &sa, 0);
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sigaction (SIGINT, &sa, 0);
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sigaction (SIGQUIT, &sa, 0);
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sigaction (SIGHUP, &sa, 0);
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return SCM_BOOL_T;
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}
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/* Handle signal SIG and exit. All signals that cron handles will produce the
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same behavior so we don't need to use SIG in the implementation. */
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static void
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react_to_terminal_signal (int sig)
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{
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scm_c_eval_string ("(delete-run-file)");
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exit (EXIT_FAILURE);
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}
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