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-rw-r--r--lib/include/service.h47
1 files changed, 40 insertions, 7 deletions
diff --git a/lib/include/service.h b/lib/include/service.h
index eb92d85..6808bdd 100644
--- a/lib/include/service.h
+++ b/lib/include/service.h
@@ -1,19 +1,45 @@
+/* SPDX-License-Identifier: GPL-3.0-or-later */
+/*
+ * Copyright (C) 2018 - David Oberhollenzer
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <https://www.gnu.org/licenses/>.
+ */
#ifndef SERVICE_H
#define SERVICE_H
#include <sys/types.h>
enum {
+ /*
+ Start the service in the background and continue with
+ other services. The service will eventually terminate.
+ */
SVC_ONCE = 0,
- SVC_WAIT,
+ SVC_WAIT, /* run service and wait until it finishes */
+
+ /*
+ Similar to SVC_ONCE, but restart the service when
+ it terminates.
+ */
SVC_RESPAWN,
};
enum {
- TGT_BOOT = 0,
- TGT_SHUTDOWN,
- TGT_REBOOT,
- TGT_CAD,
+ TGT_BOOT = 0, /* run service when the system boots */
+ TGT_SHUTDOWN, /* run service when at system shut down */
+ TGT_REBOOT, /* run service when during system reboot */
+ TGT_CAD, /* run service when CTRL+ALT+DEL is pressed */
TGT_MAX
};
@@ -27,9 +53,9 @@ typedef struct service_t {
size_t num_exec; /* number of command lines */
char *ctty; /* controlling tty or log file */
- char **before;
+ char **before; /* services that must be executed later */
size_t num_before;
- char **after;
+ char **after; /* services that must be executed first */
size_t num_after;
pid_t pid;
@@ -49,6 +75,13 @@ service_t *rdsrv(int dirfd, const char *filename);
void delsrv(service_t *srv);
+/*
+ Rebuild a service list by scanning a directory and parsing all
+ service descriptions.
+
+ Returns 0 on success, -1 on failure. The function takes care of
+ printing error messages on failure.
+*/
int srvscan(const char *directory, service_list_t *list);
void del_srv_list(service_list_t *list);