Update API: initial support

Initial pieces of the Update API callback framework.

- move the status callback params to a new object, UpdateEngineStatus to
allow for the easier addition of new params in the future.
- switch the IUpdateEngineStatusCallback to provide a
ParcelableUpdateEngineStatus instead of a series of individual params
- move the various GetStatus() methods to use the UpdateEngineStatus
object instead of a series of params (which will need future expansion)
- Add current and new product/os versions to both the UpdateEngineStatus
and the ParcelableUpdateEngineStatus.

Bug: 64808702
Test: unit tests, and performing OTAs via a test app calling
  IUpdateEngine::AttemptUpdate() via UpdateManager::performUpdateNow()

Change-Id: I53f66f3511049f0809855814e1e758023cd8cc08
(cherry picked from commit 4f96ebf85022837603f2e10100a044d234b7d86f)

1 files changed, 21 insertions, 0 deletions

diff --git a/client_library/include/update_engine/update_status.h b/client_library/include/update_engine/update_status.h
index 3e9af5b6..76dd8654 100644
--- a/client_library/include/update_engine/update_status.h
+++ b/client_library/include/update_engine/update_status.h
@@ -17,6 +17,8 @@
 #ifndef UPDATE_ENGINE_CLIENT_LIBRARY_INCLUDE_UPDATE_ENGINE_UPDATE_STATUS_H_
 #define UPDATE_ENGINE_CLIENT_LIBRARY_INCLUDE_UPDATE_ENGINE_UPDATE_STATUS_H_
 
+#include <string>
+
 namespace update_engine {
 
 enum class UpdateStatus {
@@ -32,6 +34,25 @@ enum class UpdateStatus {
   DISABLED,
 };
 
+struct UpdateEngineStatus {
+  // When the update_engine last checked for updates (ms since Epoch)
+  int64_t last_checked_time_ms;
+  // the current status/operation of the update_engine
+  UpdateStatus status;
+  // the current product version (oem bundle id)
+  std::string current_version;
+  // the current system version
+  std::string current_system_version;
+  // The current progress (0.0f-1.0f).
+  double progress;
+  // the size of the update (bytes)
+  uint64_t new_size_bytes;
+  // the new product version
+  std::string new_version;
+  // the new system version, if there is one (empty, otherwise)
+  std::string new_system_version;
+};
+
 }  // namespace update_engine
 
 #endif  // UPDATE_ENGINE_CLIENT_LIBRARY_INCLUDE_UPDATE_ENGINE_UPDATE_STATUS_H_