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systemd/automount.c
2010-04-06 02:43:58 +02:00

137 lines
4.1 KiB
C

/*-*- Mode: C; c-basic-offset: 8 -*-*/
/***
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 General Public License as published by
the Free Software Foundation; either version 2 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
General Public License for more details.
You should have received a copy of the GNU General Public License
along with systemd; If not, see <http://www.gnu.org/licenses/>.
***/
#include <errno.h>
#include "unit.h"
#include "automount.h"
#include "load-fragment.h"
#include "load-dropin.h"
static int automount_init(Unit *u, UnitLoadState *new_state) {
int r;
Automount *a = AUTOMOUNT(u);
assert(a);
exec_context_init(&a->exec_context);
/* Load a .automount file */
if ((r = unit_load_fragment(u, new_state)) < 0)
return r;
if (*new_state == UNIT_STUB)
*new_state = UNIT_LOADED;
/* Load drop-in directory data */
if ((r = unit_load_dropin(unit_follow_merge(u))) < 0)
return r;
if (*new_state == UNIT_LOADED) {
if ((r = unit_add_dependency(u, UNIT_BEFORE, UNIT(a->mount))) < 0)
return r;
if ((r = unit_add_exec_dependencies(u, &a->exec_context)) < 0)
return r;
if ((r = unit_add_default_cgroup(u)) < 0)
return r;
}
return 0;
}
static void automount_done(Unit *u) {
Automount *d = AUTOMOUNT(u);
assert(d);
free(d->path);
}
static void automount_dump(Unit *u, FILE *f, const char *prefix) {
static const char* const state_table[_AUTOMOUNT_STATE_MAX] = {
[AUTOMOUNT_DEAD] = "dead",
[AUTOMOUNT_START_PRE] = "start-pre",
[AUTOMOUNT_START_POST] = "start-post",
[AUTOMOUNT_WAITING] = "waiting",
[AUTOMOUNT_RUNNING] = "running",
[AUTOMOUNT_STOP_PRE] = "stop-pre",
[AUTOMOUNT_STOP_POST] = "stop-post",
[AUTOMOUNT_MAINTAINANCE] = "maintainance"
};
static const char* const command_table[_AUTOMOUNT_EXEC_MAX] = {
[AUTOMOUNT_EXEC_START_PRE] = "StartPre",
[AUTOMOUNT_EXEC_START_POST] = "StartPost",
[AUTOMOUNT_EXEC_STOP_PRE] = "StopPre",
[AUTOMOUNT_EXEC_STOP_POST] = "StopPost"
};
AutomountExecCommand c;
Automount *s = AUTOMOUNT(u);
assert(s);
fprintf(f,
"%sAutomount State: %s\n"
"%sPath: %s\n",
prefix, state_table[s->state],
prefix, s->path);
exec_context_dump(&s->exec_context, f, prefix);
for (c = 0; c < _AUTOMOUNT_EXEC_MAX; c++) {
ExecCommand *i;
LIST_FOREACH(command, i, s->exec_command[c])
fprintf(f, "%s%s: %s\n", prefix, command_table[c], i->path);
}
}
static UnitActiveState automount_active_state(Unit *u) {
static const UnitActiveState table[_AUTOMOUNT_STATE_MAX] = {
[AUTOMOUNT_DEAD] = UNIT_INACTIVE,
[AUTOMOUNT_START_PRE] = UNIT_ACTIVATING,
[AUTOMOUNT_START_POST] = UNIT_ACTIVATING,
[AUTOMOUNT_WAITING] = UNIT_ACTIVE,
[AUTOMOUNT_RUNNING] = UNIT_ACTIVE,
[AUTOMOUNT_STOP_PRE] = UNIT_DEACTIVATING,
[AUTOMOUNT_STOP_POST] = UNIT_DEACTIVATING,
[AUTOMOUNT_MAINTAINANCE] = UNIT_INACTIVE,
};
return table[AUTOMOUNT(u)->state];
}
const UnitVTable automount_vtable = {
.suffix = ".mount",
.init = automount_init,
.done = automount_done,
.dump = automount_dump,
.active_state = automount_active_state
};