Prep v221: Update and clean up build system to sync with upstream

This commit replays the moving around of source files that have been
done between systemd-219 and systemd-221.

Further the Makefile.am is synchronized with the upstream version and
then "re-cleaned".

A lot of functions, that are not used anywhere in elogind have been
coated into #if 0/#endif directives to further shorten the list of
dependencies.

All unneeded files have been removed.

1 files changed, 177 insertions, 0 deletions

diff --git a/src/basic/unit-name.h b/src/basic/unit-name.h
new file mode 100644
index 000000000..b2043d087
--- /dev/null
+++ b/src/basic/unit-name.h
@@ -0,0 +1,177 @@
+/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
+
+#pragma once
+
+/***
+  This file is part of systemd.
+
+  Copyright 2010 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/>.
+***/
+
+#include <stdbool.h>
+
+#include "macro.h"
+
+#define UNIT_NAME_MAX 256
+
+typedef enum UnitType UnitType;
+typedef enum UnitLoadState UnitLoadState;
+typedef enum UnitDependency UnitDependency;
+
+enum UnitType {
+        UNIT_SERVICE = 0,
+        UNIT_SOCKET,
+        UNIT_BUSNAME,
+        UNIT_TARGET,
+        UNIT_SNAPSHOT,
+        UNIT_DEVICE,
+        UNIT_MOUNT,
+        UNIT_AUTOMOUNT,
+        UNIT_SWAP,
+        UNIT_TIMER,
+        UNIT_PATH,
+        UNIT_SLICE,
+        UNIT_SCOPE,
+        _UNIT_TYPE_MAX,
+        _UNIT_TYPE_INVALID = -1
+};
+
+enum UnitLoadState {
+        UNIT_STUB = 0,
+        UNIT_LOADED,
+        UNIT_NOT_FOUND,
+        UNIT_ERROR,
+        UNIT_MERGED,
+        UNIT_MASKED,
+        _UNIT_LOAD_STATE_MAX,
+        _UNIT_LOAD_STATE_INVALID = -1
+};
+
+enum UnitDependency {
+        /* Positive dependencies */
+        UNIT_REQUIRES,
+        UNIT_REQUIRES_OVERRIDABLE,
+        UNIT_REQUISITE,
+        UNIT_REQUISITE_OVERRIDABLE,
+        UNIT_WANTS,
+        UNIT_BINDS_TO,
+        UNIT_PART_OF,
+
+        /* Inverse of the above */
+        UNIT_REQUIRED_BY,             /* inverse of 'requires' is 'required_by' */
+        UNIT_REQUIRED_BY_OVERRIDABLE, /* inverse of 'requires_overridable' is 'required_by_overridable' */
+        UNIT_REQUISITE_OF,            /* inverse of 'requisite' is 'requisite_of' */
+        UNIT_REQUISITE_OF_OVERRIDABLE,/* inverse of 'requisite_overridable' is 'requisite_of_overridable' */
+        UNIT_WANTED_BY,               /* inverse of 'wants' */
+        UNIT_BOUND_BY,                /* inverse of 'binds_to' */
+        UNIT_CONSISTS_OF,             /* inverse of 'part_of' */
+
+        /* Negative dependencies */
+        UNIT_CONFLICTS,               /* inverse of 'conflicts' is 'conflicted_by' */
+        UNIT_CONFLICTED_BY,
+
+        /* Order */
+        UNIT_BEFORE,                  /* inverse of 'before' is 'after' and vice versa */
+        UNIT_AFTER,
+
+        /* On Failure */
+        UNIT_ON_FAILURE,
+
+        /* Triggers (i.e. a socket triggers a service) */
+        UNIT_TRIGGERS,
+        UNIT_TRIGGERED_BY,
+
+        /* Propagate reloads */
+        UNIT_PROPAGATES_RELOAD_TO,
+        UNIT_RELOAD_PROPAGATED_FROM,
+
+        /* Joins namespace of */
+        UNIT_JOINS_NAMESPACE_OF,
+
+        /* Reference information for GC logic */
+        UNIT_REFERENCES,              /* Inverse of 'references' is 'referenced_by' */
+        UNIT_REFERENCED_BY,
+
+        _UNIT_DEPENDENCY_MAX,
+        _UNIT_DEPENDENCY_INVALID = -1
+};
+
+typedef enum UnitNameFlags {
+        UNIT_NAME_PLAIN = 1,      /* Allow foo.service */
+        UNIT_NAME_INSTANCE = 2,   /* Allow foo@bar.service */
+        UNIT_NAME_TEMPLATE = 4,   /* Allow foo@.service */
+        UNIT_NAME_ANY = UNIT_NAME_PLAIN|UNIT_NAME_INSTANCE|UNIT_NAME_TEMPLATE,
+} UnitNameFlags;
+
+bool unit_name_is_valid(const char *n, UnitNameFlags flags) _pure_;
+bool unit_prefix_is_valid(const char *p) _pure_;
+bool unit_instance_is_valid(const char *i) _pure_;
+bool unit_suffix_is_valid(const char *s) _pure_;
+
+static inline int unit_prefix_and_instance_is_valid(const char *p) {
+        /* For prefix+instance and instance the same rules apply */
+        return unit_instance_is_valid(p);
+}
+
+int unit_name_to_prefix(const char *n, char **prefix);
+int unit_name_to_instance(const char *n, char **instance);
+int unit_name_to_prefix_and_instance(const char *n, char **ret);
+
+UnitType unit_name_to_type(const char *n) _pure_;
+
+int unit_name_change_suffix(const char *n, const char *suffix, char **ret);
+
+int unit_name_build(const char *prefix, const char *instance, const char *suffix, char **ret);
+
+char *unit_name_escape(const char *f);
+int unit_name_unescape(const char *f, char **ret);
+int unit_name_path_escape(const char *f, char **ret);
+int unit_name_path_unescape(const char *f, char **ret);
+
+int unit_name_replace_instance(const char *f, const char *i, char **ret);
+
+int unit_name_template(const char *f, char **ret);
+
+int unit_name_from_path(const char *path, const char *suffix, char **ret);
+int unit_name_from_path_instance(const char *prefix, const char *path, const char *suffix, char **ret);
+int unit_name_to_path(const char *name, char **ret);
+
+char *unit_dbus_path_from_name(const char *name);
+int unit_name_from_dbus_path(const char *path, char **name);
+
+typedef enum UnitNameMangle {
+        UNIT_NAME_NOGLOB,
+        UNIT_NAME_GLOB,
+} UnitNameMangle;
+
+int unit_name_mangle_with_suffix(const char *name, UnitNameMangle allow_globs, const char *suffix, char **ret);
+
+static inline int unit_name_mangle(const char *name, UnitNameMangle allow_globs, char **ret) {
+        return unit_name_mangle_with_suffix(name, allow_globs, ".service", ret);
+}
+
+int slice_build_parent_slice(const char *slice, char **ret);
+int slice_build_subslice(const char *slice, const char*name, char **subslice);
+bool slice_name_is_valid(const char *name);
+
+const char *unit_type_to_string(UnitType i) _const_;
+UnitType unit_type_from_string(const char *s) _pure_;
+
+const char *unit_load_state_to_string(UnitLoadState i) _const_;
+UnitLoadState unit_load_state_from_string(const char *s) _pure_;
+
+const char *unit_dependency_to_string(UnitDependency i) _const_;
+UnitDependency unit_dependency_from_string(const char *s) _pure_;