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

1 files changed, 45 insertions, 0 deletions

diff --git a/libs/services/src/os/StatsLogEventWrapper.cpp b/libs/services/src/os/StatsLogEventWrapper.cpp
new file mode 100644
index 000000000000..8b3aa9ab4257
--- /dev/null
+++ b/libs/services/src/os/StatsLogEventWrapper.cpp
@@ -0,0 +1,45 @@
+/*
+ * 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.
+ */
+#include <android/os/StatsLogEventWrapper.h>
+
+#include <binder/Parcel.h>
+#include <binder/Parcelable.h>
+#include <binder/Status.h>
+#include <utils/RefBase.h>
+#include <vector>
+
+using android::Parcel;
+using android::Parcelable;
+using android::status_t;
+using std::vector;
+
+namespace android {
+namespace os {
+
+StatsLogEventWrapper::StatsLogEventWrapper(){};
+
+status_t StatsLogEventWrapper::writeToParcel(Parcel* out) const {
+    out->writeByteVector(bytes);
+    return ::android::NO_ERROR;
+};
+
+status_t StatsLogEventWrapper::readFromParcel(const Parcel* in) {
+    in->readByteVector(&bytes);
+    return ::android::NO_ERROR;
+};
+
+} // Namespace os
+} // Namespace android