Sensor Objects
This includes all the sensor objects including a few
implementations, including dbus and sysfs sensors.
Change-Id: I9897c79f9fd463f00f0e02aeb6c32ffa89635dbe
Signed-off-by: Patrick Venture <venture@google.com>
diff --git a/sensors/host.cpp b/sensors/host.cpp
new file mode 100644
index 0000000..44e83d8
--- /dev/null
+++ b/sensors/host.cpp
@@ -0,0 +1,73 @@
+/**
+ * Copyright 2017 Google Inc.
+ *
+ * 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 <cmath>
+#include <iostream>
+#include <memory>
+#include <mutex>
+
+#include "host.hpp"
+
+std::unique_ptr<Sensor> HostSensor::CreateTemp(
+ const std::string& name,
+ int64_t timeout,
+ sdbusplus::bus::bus& bus,
+ const char* objPath,
+ bool defer)
+{
+ auto sensor = std::make_unique<HostSensor>(name, timeout, bus, objPath, defer);
+ sensor->value(0);
+
+ // TODO(venture): Need to not hard-code that this is DegreesC and scale
+ // 10x-3 unless it is! :D
+ sensor->unit(ValueInterface::Unit::DegreesC);
+ sensor->scale(-3);
+ sensor->emit_object_added();
+
+ /* TODO(venture): Need to set that _updated is set to epoch or something
+ * else. what is the default value?
+ */
+ return sensor;
+}
+
+int64_t HostSensor::value(int64_t value)
+{
+ std::lock_guard<std::mutex> guard(_lock);
+
+ _updated = std::chrono::high_resolution_clock::now();
+ _value = value * pow(10, scale()); /* scale value */
+
+ return ValueObject::value(value);
+}
+
+ReadReturn HostSensor::read(void)
+{
+ std::lock_guard<std::mutex> guard(_lock);
+
+ /* This doesn't sanity check anything, that's the caller's job. */
+ struct ReadReturn r = {
+ _value,
+ _updated
+ };
+
+ return r;
+}
+
+void HostSensor::write(double value)
+{
+ throw std::runtime_error("Not Implemented.");
+}
+