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);
50 case CMD_LISTENER_ACC_EVENT:
51 if (m_listener->get_accuracy_handler())
52 m_listener->get_accuracy_handler()->read(ch, msg);
56 void read_complete(ipc::channel *ch) {}
57 void error_caught(ipc::channel *ch, int error) {}
60 sensor_listener *m_listener;
63 sensor_listener::sensor_listener(sensor_t sensor)
65 , m_sensor(reinterpret_cast<sensor_info *>(sensor))
77 sensor_listener::~sensor_listener()
82 bool sensor_listener::init(void)
84 m_client = new(std::nothrow) ipc::ipc_client(SENSOR_CHANNEL_PATH);
85 retvm_if(!m_client, false, "Failed to allocate memory");
87 m_handler = new(std::nothrow) listener_handler(this);
104 void sensor_listener::deinit(void)
114 m_attributes.clear();
117 int sensor_listener::get_id(void)
122 sensor_t sensor_listener::get_sensor(void)
124 return static_cast<sensor_t>(m_sensor);
127 void sensor_listener::restore(void)
129 ret_if(!is_connected());
130 retm_if(!connect(), "Failed to restore listener");
132 /* Restore attributes/status */
133 if (m_started.load())
136 auto interval = m_attributes.find(SENSORD_ATTRIBUTE_INTERVAL);
137 if (interval != m_attributes.end())
138 set_interval(m_attributes[SENSORD_ATTRIBUTE_INTERVAL]);
140 auto latency = m_attributes.find(SENSORD_ATTRIBUTE_MAX_BATCH_LATENCY);
141 if (latency != m_attributes.end())
142 set_max_batch_latency(m_attributes[SENSORD_ATTRIBUTE_MAX_BATCH_LATENCY]);
144 _D("Restored listener[%d]", get_id());
147 bool sensor_listener::connect(void)
149 m_channel = m_client->connect(m_handler, &m_loop);
150 retvm_if(!m_channel, false, "Failed to connect to server");
154 cmd_listener_connect_t buf = {0, };
156 memcpy(buf.sensor, m_sensor->get_uri().c_str(), m_sensor->get_uri().size());
157 msg.set_type(CMD_LISTENER_CONNECT);
158 msg.enclose((const char *)&buf, sizeof(buf));
159 m_channel->send_sync(&msg);
161 m_channel->read_sync(reply);
162 reply.disclose((char *)&buf);
164 m_id = buf.listener_id;
165 m_connected.store(true);
167 _D("Listener ID[%d]", get_id());
172 void sensor_listener::disconnect(void)
174 ret_if(!is_connected());
175 m_connected.store(false);
180 msg.set_type(CMD_LISTENER_DISCONNECT);
181 m_channel->send_sync(&msg);
183 m_channel->read_sync(reply);
184 m_channel->disconnect();
189 _I("Disconnected[%d]", get_id());
192 bool sensor_listener::is_connected(void)
194 return m_connected.load();
197 ipc::channel_handler *sensor_listener::get_event_handler(void)
199 return m_evt_handler;
202 void sensor_listener::set_event_handler(ipc::channel_handler *handler)
204 m_evt_handler = handler;
207 void sensor_listener::unset_event_handler(void)
209 delete m_evt_handler;
210 m_evt_handler = NULL;
213 ipc::channel_handler *sensor_listener::get_accuracy_handler(void)
215 return m_acc_handler;
218 void sensor_listener::set_accuracy_handler(ipc::channel_handler *handler)
220 m_acc_handler = handler;
223 void sensor_listener::unset_accuracy_handler(void)
225 delete m_acc_handler;
226 m_acc_handler = NULL;
229 int sensor_listener::start(void)
233 cmd_listener_start_t buf;
235 retvm_if(!m_channel, -EINVAL, "Failed to connect to server");
237 buf.listener_id = m_id;
238 msg.set_type(CMD_LISTENER_START);
239 msg.enclose((char *)&buf, sizeof(buf));
241 m_channel->send_sync(&msg);
242 m_channel->read_sync(reply);
244 if (reply.header()->err < 0)
245 return reply.header()->err;
247 m_started.store(true);
252 int sensor_listener::stop(void)
256 cmd_listener_stop_t buf;
258 retvm_if(!m_channel, -EINVAL, "Failed to connect to server");
259 retvm_if(!m_started.load(), -EAGAIN, "Already stopped");
261 buf.listener_id = m_id;
262 msg.set_type(CMD_LISTENER_STOP);
263 msg.enclose((char *)&buf, sizeof(buf));
265 m_channel->send_sync(&msg);
266 m_channel->read_sync(reply);
268 if (reply.header()->err < 0)
269 return reply.header()->err;
271 m_started.store(false);
276 int sensor_listener::get_interval(void)
278 auto it = m_attributes.find(SENSORD_ATTRIBUTE_INTERVAL);
279 retv_if(it == m_attributes.end(), -1);
281 return m_attributes[SENSORD_ATTRIBUTE_INTERVAL];
284 int sensor_listener::get_max_batch_latency(void)
286 auto it = m_attributes.find(SENSORD_ATTRIBUTE_MAX_BATCH_LATENCY);
287 retv_if(it == m_attributes.end(), -1);
289 return m_attributes[SENSORD_ATTRIBUTE_MAX_BATCH_LATENCY];
292 int sensor_listener::get_pause_policy(void)
294 auto it = m_attributes.find(SENSORD_ATTRIBUTE_PAUSE_POLICY);
295 retv_if(it == m_attributes.end(), -1);
297 return m_attributes[SENSORD_ATTRIBUTE_PAUSE_POLICY];
300 int sensor_listener::get_passive_mode(void)
302 auto it = m_attributes.find(SENSORD_ATTRIBUTE_PASSIVE_MODE);
303 retv_if(it == m_attributes.end(), -1);
305 return m_attributes[SENSORD_ATTRIBUTE_PASSIVE_MODE];
308 int sensor_listener::set_interval(unsigned int interval)
312 /* TODO: move this logic to server */
314 _interval = DEFAULT_INTERVAL;
315 else if (interval < (unsigned int)m_sensor->get_min_interval())
316 _interval = m_sensor->get_min_interval();
318 _interval = interval;
320 return set_attribute(SENSORD_ATTRIBUTE_INTERVAL, _interval);
323 int sensor_listener::set_max_batch_latency(unsigned int max_batch_latency)
325 return set_attribute(SENSORD_ATTRIBUTE_MAX_BATCH_LATENCY, max_batch_latency);
328 int sensor_listener::set_passive_mode(bool passive)
330 return set_attribute(SENSORD_ATTRIBUTE_PASSIVE_MODE, passive);
333 int sensor_listener::flush(void)
335 return set_attribute(SENSORD_ATTRIBUTE_FLUSH, 1);
338 int sensor_listener::set_attribute(int attribute, int value)
342 cmd_listener_attr_int_t buf;
344 retvm_if(!m_channel, false, "Failed to connect to server");
346 buf.listener_id = m_id;
347 buf.attribute = attribute;
349 msg.set_type(CMD_LISTENER_ATTR_INT);
350 msg.enclose((char *)&buf, sizeof(buf));
352 m_channel->send_sync(&msg);
353 m_channel->read_sync(reply);
355 if (reply.header()->err < 0)
356 return reply.header()->err;
358 m_attributes[attribute] = value;
363 int sensor_listener::set_attribute(int attribute, const char *value, int len)
367 cmd_listener_attr_str_t buf;
369 retvm_if(!m_channel, false, "Failed to connect to server");
371 msg.set_type(CMD_LISTENER_ATTR_STR);
372 buf.listener_id = m_id;
373 buf.attribute = attribute;
374 memcpy(buf.value, value, len);
377 msg.enclose((char *)&buf, sizeof(buf) + len);
379 m_channel->send_sync(&msg);
380 m_channel->read_sync(reply);
382 return reply.header()->err;
385 int sensor_listener::get_sensor_data(sensor_data_t *data)
389 cmd_listener_get_data_t buf;
391 retvm_if(!m_channel, false, "Failed to connect to server");
393 buf.listener_id = m_id;
394 msg.set_type(CMD_LISTENER_GET_DATA);
395 msg.enclose((char *)&buf, sizeof(buf));
396 m_channel->send_sync(&msg);
398 m_channel->read_sync(reply);
401 reply.disclose((char *)&buf);
402 memcpy(data, buf.data, sizeof(buf.len));