mirror of
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117 lines
3.6 KiB
C
117 lines
3.6 KiB
C
/*
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* Copyright 2024 Google LLC
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include "tick_timer_service.h"
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#include "tick_timer_service_private.h"
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#include "event_service_client.h"
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#include "process_management/app_manager.h"
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#include "services/common/event_service.h"
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#include "services/common/tick_timer.h"
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#include "kernel/events.h"
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#include "kernel/kernel_applib_state.h"
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#include "process_state/app_state/app_state.h"
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#include "process_state/worker_state/worker_state.h"
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#include "syscall/syscall.h"
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#include "system/passert.h"
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// ----------------------------------------------------------------------------------------------------
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static TickTimerServiceState* prv_get_state(PebbleTask task) {
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if (task == PebbleTask_Unknown) {
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task = pebble_task_get_current();
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}
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if (task == PebbleTask_App) {
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return app_state_get_tick_timer_service_state();
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} else if (task == PebbleTask_Worker) {
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return worker_state_get_tick_timer_service_state();
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} else if (task == PebbleTask_KernelMain) {
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return kernel_applib_get_tick_timer_service_state();
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} else {
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WTF;
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}
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}
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static void do_handle(PebbleEvent *e, void *context) {
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TickTimerServiceState *state = prv_get_state(PebbleTask_Unknown);
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PBL_ASSERTN(state->handler != NULL);
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TimeUnits units_changed = 0;
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struct tm currtime;
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sys_localtime_r(&e->clock_tick.tick_time, &currtime);
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if (!state->first_tick) {
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if (state->last_time.tm_sec != currtime.tm_sec) {
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units_changed |= SECOND_UNIT;
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}
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if (state->last_time.tm_min != currtime.tm_min) {
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units_changed |= MINUTE_UNIT;
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}
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if (state->last_time.tm_hour != currtime.tm_hour) {
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units_changed |= HOUR_UNIT;
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}
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if (state->last_time.tm_mday != currtime.tm_mday) {
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units_changed |= DAY_UNIT;
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}
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if (state->last_time.tm_mon != currtime.tm_mon) {
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units_changed |= MONTH_UNIT;
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}
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if (state->last_time.tm_year != currtime.tm_year) {
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units_changed |= YEAR_UNIT;
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}
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}
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state->last_time = currtime;
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state->first_tick = false;
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if ((state->tick_units & units_changed) || (units_changed == 0)) {
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state->handler(&currtime, units_changed);
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}
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}
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void tick_timer_service_init(void) {
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TickTimerServiceState *state = prv_get_state(PebbleTask_Unknown);
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state->handler = NULL;
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event_service_init(PEBBLE_TICK_EVENT, &tick_timer_add_subscriber, &tick_timer_remove_subscriber);
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}
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void tick_timer_service_subscribe(TimeUnits tick_units, TickHandler handler) {
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TickTimerServiceState *state = prv_get_state(PebbleTask_Unknown);
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state->handler = handler;
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state->tick_units = tick_units;
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state->first_tick = true;
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event_service_client_subscribe(&state->tick_service_info);
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// TODO: make an effort to get this closer to the "actual" second tick
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}
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void tick_timer_service_unsubscribe(void) {
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TickTimerServiceState *state = prv_get_state(PebbleTask_Unknown);
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event_service_client_unsubscribe(&state->tick_service_info);
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state->handler = NULL;
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}
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void tick_timer_service_state_init(TickTimerServiceState *state) {
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*state = (TickTimerServiceState) {
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.tick_service_info = {
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.type = PEBBLE_TICK_EVENT,
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.handler = &do_handle,
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},
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};
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}
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