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wasm-micro-runtime/samples/simple/wasm-apps/sensor.c
Wenyong Huang 98bacfe6bb
Fix sensor framework timer issue and update sensor sample (#917)
Fix the sensor framework timer issue reported by #884 when setting
`ms_to_next_check`, and unify the type of time related args/vars to
uint32 to avoid potential type conversion issues, and fix the compile
warnings.

And update the sensor sample by creating two sensors to confirm that
the fix works correctly.
2021-12-28 08:44:19 +08:00

84 lines
1.9 KiB
C

/*
* Copyright (C) 2019 Intel Corporation. All rights reserved.
* SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
*/
#include "wasm_app.h"
#include "wa-inc/sensor.h"
static sensor_t sensor1 = NULL;
static sensor_t sensor2 = NULL;
static char *user_data = NULL;
/* Sensor event callback*/
void
sensor_event_handler(sensor_t sensor, attr_container_t *event, void *user_data)
{
if (sensor == sensor1) {
printf("### app get sensor event from sensor1\n");
attr_container_dump(event);
}
else {
printf("### app get sensor event from sensor2\n");
attr_container_dump(event);
}
}
void
on_init()
{
attr_container_t *config;
printf("### app on_init 1\n");
/* open a sensor */
user_data = malloc(100);
if (!user_data) {
printf("allocate memory failed\n");
return;
}
printf("### app on_init 2\n");
sensor1 = sensor_open("sensor_test1", 0, sensor_event_handler, user_data);
if (!sensor1) {
printf("open sensor1 failed\n");
return;
}
/* config the sensor */
sensor_config(sensor1, 1000, 0, 0);
printf("### app on_init 3\n");
sensor2 = sensor_open("sensor_test2", 0, sensor_event_handler, user_data);
if (!sensor2) {
printf("open sensor2 failed\n");
return;
}
/* config the sensor */
sensor_config(sensor2, 5000, 0, 0);
printf("### app on_init 4\n");
/*
config = attr_container_create("sensor config");
sensor_config(sensor, config);
attr_container_destroy(config);
*/
}
void
on_destroy()
{
if (NULL != sensor1) {
sensor_config(sensor1, 0, 0, 0);
}
if (NULL != sensor2) {
sensor_config(sensor2, 0, 0, 0);
}
if (NULL != user_data) {
free(user_data);
}
/* real destroy work including killing timer and closing sensor is
accomplished in wasm app library version of on_destroy() */
}