core: add support for RestartKillSignal= to override signal used for restart jobs

[thirdparty/systemd.git] / src / core / kill.h

/* SPDX-License-Identifier: LGPL-2.1+ */
#pragma once

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;
        int restart_kill_signal;
        int final_kill_signal;
        int watchdog_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_;

static inline int restart_kill_signal(const KillContext *c) {
        if (c->restart_kill_signal != 0)
                return c->restart_kill_signal;
        return c->kill_signal;
}