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diff --git a/src/libcore/kill.h b/src/libcore/kill.h
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+#pragma once
+
+/***
+ This file is part of systemd.
+
+ Copyright 2012 Lennart Poettering
+
+ systemd is free software; you can redistribute it and/or modify it
+ under the terms of the GNU Lesser General Public License as published by
+ the Free Software Foundation; either version 2.1 of the License, or
+ (at your option) any later version.
+
+ systemd 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
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with systemd; If not, see <http://www.gnu.org/licenses/>.
+***/
+
+typedef struct KillContext KillContext;
+
+#include <stdbool.h>
+#include <stdio.h>
+
+#include "macro.h"
+
+typedef enum KillMode {
+ /* The kill mode is a property of a unit. */
+ KILL_CONTROL_GROUP = 0,
+ KILL_PROCESS,
+ KILL_MIXED,
+ KILL_NONE,
+ _KILL_MODE_MAX,
+ _KILL_MODE_INVALID = -1
+} KillMode;
+
+struct KillContext {
+ KillMode kill_mode;
+ int kill_signal;
+ bool send_sigkill;
+ bool send_sighup;
+};
+
+typedef enum KillWho {
+ /* Kill who is a property of an operation */
+ KILL_MAIN,
+ KILL_CONTROL,
+ KILL_ALL,
+ KILL_MAIN_FAIL,
+ KILL_CONTROL_FAIL,
+ KILL_ALL_FAIL,
+ _KILL_WHO_MAX,
+ _KILL_WHO_INVALID = -1
+} KillWho;
+
+void kill_context_init(KillContext *c);
+void kill_context_dump(KillContext *c, FILE *f, const char *prefix);
+
+const char *kill_mode_to_string(KillMode k) _const_;
+KillMode kill_mode_from_string(const char *s) _pure_;
+
+const char *kill_who_to_string(KillWho k) _const_;
+KillWho kill_who_from_string(const char *s) _pure_;