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wasm-micro-runtime/samples/simple/wasm-apps/event_publisher.c

58 lines
1.4 KiB
C

/*
* Copyright (C) 2019 Intel Corporation. All rights reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "wasm_app.h"
int num = 0;
void publish_overheat_event()
{
attr_container_t *event;
event = attr_container_create("event");
attr_container_set_string(&event, "warning", "temperature is over high");
api_publish_event("alert/overheat", FMT_ATTR_CONTAINER, event,
attr_container_get_serialize_length(event));
attr_container_destroy(event);
}
/* Timer callback */
void timer1_update(user_timer_t timer)
{
publish_overheat_event();
}
void start_timer()
{
user_timer_t timer;
/* set up a timer */
timer = api_timer_create(1000, true, false, timer1_update);
api_timer_restart(timer, 1000);
}
void on_init()
{
start_timer();
}
void on_destroy()
{
/* real destroy work including killing timer and closing sensor is accomplished in wasm app library version of on_destroy() */
}