93 lines
2.0 KiB
C
93 lines
2.0 KiB
C
/*-*- Mode: C; c-basic-offset: 8 -*-*/
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#include <errno.h>
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#include "unit.h"
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#include "target.h"
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#include "load-fragment.h"
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#include "log.h"
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static const UnitActiveState state_translation_table[_TARGET_STATE_MAX] = {
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[TARGET_DEAD] = UNIT_INACTIVE,
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[TARGET_ACTIVE] = UNIT_ACTIVE
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};
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static const char* const state_string_table[_TARGET_STATE_MAX] = {
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[TARGET_DEAD] = "dead",
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[TARGET_ACTIVE] = "active"
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};
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static int target_init(Unit *u) {
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int r;
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assert(u);
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/* Make sure this config file actually exists */
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if ((r = unit_load_fragment_and_dropin(u)) <= 0)
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return r < 0 ? r : -ENOENT;
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return 0;
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}
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static void target_dump(Unit *u, FILE *f, const char *prefix) {
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Target *t = TARGET(u);
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assert(t);
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assert(f);
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fprintf(f,
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"%sTarget State: %s\n",
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prefix, state_string_table[t->state]);
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}
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static void target_set_state(Target *t, TargetState state) {
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TargetState old_state;
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assert(t);
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old_state = t->state;
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t->state = state;
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log_debug("%s changed %s → %s", unit_id(UNIT(t)), state_string_table[old_state], state_string_table[state]);
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unit_notify(UNIT(t), state_translation_table[old_state], state_translation_table[state]);
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}
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static int target_start(Unit *u) {
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Target *t = TARGET(u);
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assert(t);
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assert(t->state == TARGET_DEAD);
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target_set_state(t, TARGET_ACTIVE);
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return 0;
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}
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static int target_stop(Unit *u) {
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Target *t = TARGET(u);
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assert(t);
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assert(t->state == TARGET_ACTIVE);
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target_set_state(t, TARGET_DEAD);
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return 0;
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}
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static UnitActiveState target_active_state(Unit *u) {
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assert(u);
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return state_translation_table[TARGET(u)->state];
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}
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const UnitVTable target_vtable = {
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.suffix = ".target",
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.init = target_init,
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.dump = target_dump,
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.start = target_start,
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.stop = target_stop,
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.active_state = target_active_state
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};
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