commit 2576cb63b3fe1592f54816625036566b9eb0793a
author Peng Xu <pengxu@google.com> Wed Jan 20 00:22:09 2016 -0800
committer Peng Xu <pengxu@google.com> Mon Jan 25 01:56:49 2016 -0800
tree d2c981c0e0383e678054d067e59568ca0dcb7ca4
parent 59d761f822c5ae4c2a268cea0ea9f1c38854b87c

Dynamic Sensor Discovery implementation

Defined the dynamic sensor meta data type and UUID of sensor.

Implementation in sensorservice and the native SensorManager to
support Dynamic sensor discovery.

Change-Id: I9df2f2ae51d46cd946a9757393f7a60b52cc4fb8

libs/gui/Sensor.cpp

diff --git a/libs/gui/Sensor.cpp b/libs/gui/Sensor.cpp
index 0a0fc4b..a6cb908 100644
--- a/libs/gui/Sensor.cpp
+++ b/libs/gui/Sensor.cpp
@@ -188,7 +188,7 @@
         if (halVersion < SENSORS_DEVICE_API_VERSION_1_3) {
             mFlags |= SENSOR_FLAG_WAKE_UP;
         }
-         break;
+        break;
     case SENSOR_TYPE_WAKE_GESTURE:
         mStringType = SENSOR_STRING_TYPE_WAKE_GESTURE;
         mFlags |= SENSOR_FLAG_ONE_SHOT_MODE;
@@ -217,6 +217,10 @@
             mFlags |= SENSOR_FLAG_WAKE_UP;
         }
         break;
+    case SENSOR_TYPE_DYNAMIC_SENSOR_META:
+        mStringType = SENSOR_STRING_TYPE_DYNAMIC_SENSOR_META;
+        mFlags = SENSOR_FLAG_SPECIAL_REPORTING_MODE; // special trigger and non-wake up
+        break;
     default:
         // Only pipe the stringType, requiredPermission and flags for custom sensors.
         if (halVersion > SENSORS_DEVICE_API_VERSION_1_0 && hwSensor->stringType) {
@@ -368,13 +372,18 @@
     return ((mFlags & REPORTING_MODE_MASK) >> REPORTING_MODE_SHIFT);
 }
 
+const Sensor::uuid_t& Sensor::getUuid() const {
+    return mUuid;
+}
+
 size_t Sensor::getFlattenedSize() const
 {
     size_t fixedSize =
-            sizeof(int32_t) * 3 +
-            sizeof(float) * 4 +
-            sizeof(int32_t) * 6 +
-            sizeof(bool);
+            sizeof(mVersion) + sizeof(mHandle) + sizeof(mType) +
+            sizeof(mMinValue) + sizeof(mMaxValue) + sizeof(mResolution) +
+            sizeof(mPower) + sizeof(mMinDelay) + sizeof(mFifoMaxEventCount) +
+            sizeof(mFifoMaxEventCount) + sizeof(mRequiredPermissionRuntime) +
+            sizeof(mRequiredAppOp) + sizeof(mMaxDelay) + sizeof(mFlags) + sizeof(mUuid);
 
     size_t variableSize =
             sizeof(uint32_t) + FlattenableUtils::align<4>(mName.length()) +
@@ -408,6 +417,7 @@
     FlattenableUtils::write(buffer, size, mRequiredAppOp);
     FlattenableUtils::write(buffer, size, mMaxDelay);
     FlattenableUtils::write(buffer, size, mFlags);
+    FlattenableUtils::write(buffer, size, mUuid);
     return NO_ERROR;
 }
 
@@ -419,11 +429,11 @@
         return NO_MEMORY;
     }
 
-    size_t fixedSize =
-            sizeof(int32_t) * 3 +
-            sizeof(float) * 4 +
-            sizeof(int32_t) * 5;
-    if (size < fixedSize) {
+    size_t fixedSize1 =
+            sizeof(mVersion) + sizeof(mHandle) + sizeof(mType) + sizeof(mMinValue) +
+            sizeof(mMaxValue) + sizeof(mResolution) + sizeof(mPower) + sizeof(mMinDelay) +
+            sizeof(mFifoMaxEventCount) + sizeof(mFifoMaxEventCount);
+    if (size < fixedSize1) {
         return NO_MEMORY;
     }
 
@@ -444,10 +454,19 @@
     if (!unflattenString8(buffer, size, mRequiredPermission)) {
         return NO_MEMORY;
     }
+
+    size_t fixedSize2 =
+            sizeof(mRequiredPermissionRuntime) + sizeof(mRequiredAppOp) + sizeof(mMaxDelay) +
+            sizeof(mFlags) + sizeof(mUuid);
+    if (size < fixedSize2) {
+        return NO_MEMORY;
+    }
+
     FlattenableUtils::read(buffer, size, mRequiredPermissionRuntime);
     FlattenableUtils::read(buffer, size, mRequiredAppOp);
     FlattenableUtils::read(buffer, size, mMaxDelay);
     FlattenableUtils::read(buffer, size, mFlags);
+    FlattenableUtils::read(buffer, size, mUuid);
     return NO_ERROR;
 }