Changes pulled data to use Parcel objects.
Previously, pulled data was returned as a string. We instead
return the data as an array of StatsLogEventWrapper, which encodes
using the binary-encoded format liblog uses. StatsD uses the same
parsing as for pushed events to convert these. This CL also fixes
the parsing of log_msg since the strings were previously emptied
before we had a chance to read the values.
Note that the cpp-aidl can't support List of Parcelable, so we
have to return the results as an array.
Test: Manual using the new command in StatsService to print results.
Also created a new unit-test by creating a dummy pull code of -1,
but this test is deleted since it required creating a fake output in
StatsCompanionService.
Change-Id: I1cfb9ea081a59292a60e934e8527adc40982ed80
diff --git a/libs/services/include/android/os/StatsLogEventWrapper.h b/libs/services/include/android/os/StatsLogEventWrapper.h
new file mode 100644
index 0000000..255619c
--- /dev/null
+++ b/libs/services/include/android/os/StatsLogEventWrapper.h
@@ -0,0 +1,47 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * 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.
+ */
+#ifndef STATS_LOG_EVENT_WRAPPER_H
+#define STATS_LOG_EVENT_WRAPPER_H
+
+#include <binder/Parcel.h>
+#include <binder/Parcelable.h>
+#include <binder/Status.h>
+#include <utils/RefBase.h>
+#include <vector>
+
+namespace android {
+namespace os {
+
+// Represents a parcelable object. Only used to send data from Android OS to statsd.
+class StatsLogEventWrapper : public android::Parcelable {
+ public:
+ StatsLogEventWrapper();
+
+ StatsLogEventWrapper(StatsLogEventWrapper&& in) = default;
+
+ android::status_t writeToParcel(android::Parcel* out) const;
+
+ android::status_t readFromParcel(const android::Parcel* in);
+
+ // These are public for ease of conversion.
+ std::vector<uint8_t> bytes;
+};
+} // Namespace os
+} // Namespace android
+
+
+#endif // STATS_LOG_EVENT_WRAPPER_H
+