6c12b52e19
"Scope" units are very much like service units, however with the difference that they are created from pre-existing processes, rather than processes that systemd itself forks off. This means they are generated programmatically via the bus API as transient units rather than from static configuration read from disk. Also, they do not provide execution-time parameters, as at the time systemd adds the processes to the scope unit they already exist and the parameters cannot be applied anymore. The primary benefit of this new unit type is to create arbitrary cgroups for worker-processes forked off an existing service. This commit also adds a a new mode to "systemd-run" to run the specified processes in a scope rather then a transient service.
101 lines
2.9 KiB
C
101 lines
2.9 KiB
C
/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
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#pragma once
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/***
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This file is part of systemd.
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Copyright 2010 Lennart Poettering
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systemd is free software; you can redistribute it and/or modify it
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under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation; either version 2.1 of the License, or
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(at your option) any later version.
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systemd is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with systemd; If not, see <http://www.gnu.org/licenses/>.
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***/
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#include <stdbool.h>
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#include "macro.h"
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#define UNIT_NAME_MAX 256
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typedef enum UnitType UnitType;
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typedef enum UnitLoadState UnitLoadState;
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enum UnitType {
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UNIT_SERVICE = 0,
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UNIT_SOCKET,
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UNIT_TARGET,
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UNIT_DEVICE,
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UNIT_MOUNT,
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UNIT_AUTOMOUNT,
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UNIT_SNAPSHOT,
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UNIT_TIMER,
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UNIT_SWAP,
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UNIT_PATH,
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UNIT_SLICE,
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UNIT_SCOPE,
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_UNIT_TYPE_MAX,
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_UNIT_TYPE_INVALID = -1
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};
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enum UnitLoadState {
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UNIT_STUB = 0,
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UNIT_LOADED,
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UNIT_NOT_FOUND,
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UNIT_ERROR,
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UNIT_MERGED,
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UNIT_MASKED,
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_UNIT_LOAD_STATE_MAX,
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_UNIT_LOAD_STATE_INVALID = -1
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};
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const char *unit_type_to_string(UnitType i) _const_;
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UnitType unit_type_from_string(const char *s) _pure_;
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const char *unit_load_state_to_string(UnitLoadState i) _const_;
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UnitLoadState unit_load_state_from_string(const char *s) _pure_;
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int unit_name_to_instance(const char *n, char **instance);
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char* unit_name_to_prefix(const char *n);
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char* unit_name_to_prefix_and_instance(const char *n);
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bool unit_name_is_valid(const char *n, bool template_ok) _pure_;
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bool unit_prefix_is_valid(const char *p) _pure_;
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bool unit_instance_is_valid(const char *i) _pure_;
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UnitType unit_name_to_type(const char *n) _pure_;
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char *unit_name_change_suffix(const char *n, const char *suffix);
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char *unit_name_build(const char *prefix, const char *instance, const char *suffix);
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char *unit_name_escape(const char *f);
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char *unit_name_unescape(const char *f);
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char *unit_name_path_escape(const char *f);
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char *unit_name_path_unescape(const char *f);
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bool unit_name_is_template(const char *n) _pure_;
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bool unit_name_is_instance(const char *n) _pure_;
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char *unit_name_replace_instance(const char *f, const char *i);
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char *unit_name_template(const char *f);
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char *unit_name_from_path(const char *path, const char *suffix);
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char *unit_name_from_path_instance(const char *prefix, const char *path, const char *suffix);
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char *unit_name_to_path(const char *name);
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char *unit_dbus_path_from_name(const char *name);
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char *unit_name_mangle(const char *name);
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char *unit_name_mangle_with_suffix(const char *name, const char *suffix);
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