4 * Copyright (c) 2017 Samsung Electronics Co., Ltd.
6 * Licensed under the Apache License, Version 2.0 (the "License");
7 * you may not use this file except in compliance with the License.
8 * You may obtain a copy of the License at
10 * http://www.apache.org/licenses/LICENSE-2.0
12 * Unless required by applicable law or agreed to in writing, software
13 * distributed under the License is distributed on an "AS IS" BASIS,
14 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
15 * See the License for the specific language governing permissions and
16 * limitations under the License.
20 #include "sensor_listener.h"
22 #include <channel_handler.h>
23 #include <sensor_log.h>
24 #include <sensor_types.h>
25 #include <command_types.h>
26 #include <ipc_client.h>
28 using namespace sensor;
30 class listener_handler : public ipc::channel_handler
33 listener_handler(sensor_listener *listener)
34 : m_listener(listener)
36 void connected(ipc::channel *ch) {}
37 void disconnected(ipc::channel *ch)
39 /* If channel->disconnect() is not explicitly called,
40 * listener will be restored */
41 m_listener->restore();
44 void read(ipc::channel *ch, ipc::message &msg)
46 switch (msg.header()->type) {
47 case CMD_LISTENER_EVENT:
48 if (m_listener->get_event_handler())
49 m_listener->get_event_handler()->read(ch, msg);
51 case CMD_LISTENER_ACC_EVENT:
52 if (m_listener->get_accuracy_handler())
53 m_listener->get_accuracy_handler()->read(ch, msg);
58 void read_complete(ipc::channel *ch) {}
59 void error_caught(ipc::channel *ch, int error) {}
62 sensor_listener *m_listener;
65 sensor_listener::sensor_listener(sensor_t sensor)
67 , m_sensor(reinterpret_cast<sensor_info *>(sensor))
79 sensor_listener::~sensor_listener()
84 bool sensor_listener::init(void)
86 m_client = new(std::nothrow) ipc::ipc_client(SENSOR_CHANNEL_PATH);
87 retvm_if(!m_client, false, "Failed to allocate memory");
89 m_handler = new(std::nothrow) listener_handler(this);
106 void sensor_listener::deinit(void)
116 m_attributes.clear();
119 int sensor_listener::get_id(void)
124 sensor_t sensor_listener::get_sensor(void)
126 return static_cast<sensor_t>(m_sensor);
129 void sensor_listener::restore(void)
131 ret_if(!is_connected());
132 retm_if(!connect(), "Failed to restore listener");
134 /* Restore attributes/status */
135 if (m_started.load())
138 auto interval = m_attributes.find(SENSORD_ATTRIBUTE_INTERVAL);
139 if (interval != m_attributes.end())
140 set_interval(m_attributes[SENSORD_ATTRIBUTE_INTERVAL]);
142 auto latency = m_attributes.find(SENSORD_ATTRIBUTE_MAX_BATCH_LATENCY);
143 if (latency != m_attributes.end())
144 set_max_batch_latency(m_attributes[SENSORD_ATTRIBUTE_MAX_BATCH_LATENCY]);
146 _D("Restored listener[%d]", get_id());
149 bool sensor_listener::connect(void)
151 m_channel = m_client->connect(m_handler, &m_loop);
152 retvm_if(!m_channel, false, "Failed to connect to server");
156 cmd_listener_connect_t buf = {0, };
158 memcpy(buf.sensor, m_sensor->get_uri().c_str(), m_sensor->get_uri().size());
159 msg.set_type(CMD_LISTENER_CONNECT);
160 msg.enclose((const char *)&buf, sizeof(buf));
161 m_channel->send_sync(&msg);
163 m_channel->read_sync(reply);
164 reply.disclose((char *)&buf);
166 m_id = buf.listener_id;
167 m_connected.store(true);
169 _D("Listener ID[%d]", get_id());
174 void sensor_listener::disconnect(void)
176 ret_if(!is_connected());
177 m_connected.store(false);
182 msg.set_type(CMD_LISTENER_DISCONNECT);
183 m_channel->send_sync(&msg);
185 m_channel->read_sync(reply);
186 m_channel->disconnect();
191 _I("Disconnected[%d]", get_id());
194 bool sensor_listener::is_connected(void)
196 return m_connected.load();
199 ipc::channel_handler *sensor_listener::get_event_handler(void)
201 return m_evt_handler;
204 void sensor_listener::set_event_handler(ipc::channel_handler *handler)
206 m_evt_handler = handler;
209 void sensor_listener::unset_event_handler(void)
211 delete m_evt_handler;
212 m_evt_handler = NULL;
215 ipc::channel_handler *sensor_listener::get_accuracy_handler(void)
217 return m_acc_handler;
220 void sensor_listener::set_accuracy_handler(ipc::channel_handler *handler)
222 m_acc_handler = handler;
225 void sensor_listener::unset_accuracy_handler(void)
227 delete m_acc_handler;
228 m_acc_handler = NULL;
231 int sensor_listener::start(void)
235 cmd_listener_start_t buf;
237 retvm_if(!m_channel, -EINVAL, "Failed to connect to server");
239 buf.listener_id = m_id;
240 msg.set_type(CMD_LISTENER_START);
241 msg.enclose((char *)&buf, sizeof(buf));
243 m_channel->send_sync(&msg);
244 m_channel->read_sync(reply);
246 if (reply.header()->err < 0)
247 return reply.header()->err;
249 m_started.store(true);
254 int sensor_listener::stop(void)
258 cmd_listener_stop_t buf;
260 retvm_if(!m_channel, -EINVAL, "Failed to connect to server");
261 retvm_if(!m_started.load(), -EAGAIN, "Already stopped");
263 buf.listener_id = m_id;
264 msg.set_type(CMD_LISTENER_STOP);
265 msg.enclose((char *)&buf, sizeof(buf));
267 m_channel->send_sync(&msg);
268 m_channel->read_sync(reply);
270 if (reply.header()->err < 0)
271 return reply.header()->err;
273 m_started.store(false);
278 int sensor_listener::get_interval(void)
280 auto it = m_attributes.find(SENSORD_ATTRIBUTE_INTERVAL);
281 retv_if(it == m_attributes.end(), -1);
283 return m_attributes[SENSORD_ATTRIBUTE_INTERVAL];
286 int sensor_listener::get_max_batch_latency(void)
288 auto it = m_attributes.find(SENSORD_ATTRIBUTE_MAX_BATCH_LATENCY);
289 retv_if(it == m_attributes.end(), -1);
291 return m_attributes[SENSORD_ATTRIBUTE_MAX_BATCH_LATENCY];
294 int sensor_listener::get_pause_policy(void)
296 auto it = m_attributes.find(SENSORD_ATTRIBUTE_PAUSE_POLICY);
297 retv_if(it == m_attributes.end(), -1);
299 return m_attributes[SENSORD_ATTRIBUTE_PAUSE_POLICY];
302 int sensor_listener::get_passive_mode(void)
304 auto it = m_attributes.find(SENSORD_ATTRIBUTE_PASSIVE_MODE);
305 retv_if(it == m_attributes.end(), -1);
307 return m_attributes[SENSORD_ATTRIBUTE_PASSIVE_MODE];
310 int sensor_listener::set_interval(unsigned int interval)
314 /* TODO: move this logic to server */
316 _interval = DEFAULT_INTERVAL;
317 else if (interval < (unsigned int)m_sensor->get_min_interval())
318 _interval = m_sensor->get_min_interval();
320 _interval = interval;
322 return set_attribute(SENSORD_ATTRIBUTE_INTERVAL, _interval);
325 int sensor_listener::set_max_batch_latency(unsigned int max_batch_latency)
327 return set_attribute(SENSORD_ATTRIBUTE_MAX_BATCH_LATENCY, max_batch_latency);
330 int sensor_listener::set_passive_mode(bool passive)
332 return set_attribute(SENSORD_ATTRIBUTE_PASSIVE_MODE, passive);
335 int sensor_listener::flush(void)
337 return set_attribute(SENSORD_ATTRIBUTE_FLUSH, 1);
340 int sensor_listener::set_attribute(int attribute, int value)
344 cmd_listener_attr_int_t buf;
346 retvm_if(!m_channel, false, "Failed to connect to server");
348 buf.listener_id = m_id;
349 buf.attribute = attribute;
351 msg.set_type(CMD_LISTENER_ATTR_INT);
352 msg.enclose((char *)&buf, sizeof(buf));
354 m_channel->send_sync(&msg);
355 m_channel->read_sync(reply);
357 if (reply.header()->err < 0)
358 return reply.header()->err;
360 m_attributes[attribute] = value;
365 int sensor_listener::set_attribute(int attribute, const char *value, int len)
369 cmd_listener_attr_str_t buf;
371 retvm_if(!m_channel, false, "Failed to connect to server");
373 msg.set_type(CMD_LISTENER_ATTR_STR);
374 buf.listener_id = m_id;
375 buf.attribute = attribute;
376 memcpy(buf.value, value, len);
379 msg.enclose((char *)&buf, sizeof(buf) + len);
381 m_channel->send_sync(&msg);
382 m_channel->read_sync(reply);
384 return reply.header()->err;
387 int sensor_listener::get_sensor_data(sensor_data_t *data)
391 cmd_listener_get_data_t buf;
393 retvm_if(!m_channel, false, "Failed to connect to server");
395 buf.listener_id = m_id;
396 msg.set_type(CMD_LISTENER_GET_DATA);
397 msg.enclose((char *)&buf, sizeof(buf));
398 m_channel->send_sync(&msg);
400 m_channel->read_sync(reply);
403 reply.disclose((char *)&buf);
404 memcpy(data, buf.data, sizeof(buf.len));