Cache OTA manifest in update_engine
When resuming download of an OTA package, update_engine needs to
redownload the manifest of OTA package, located at beginning of file.
However, the manifest blob can be as large as ~150K for some updates.
This CL caches manifest on disk, so that update engine no longer has to
redownload the manifest for every resume.
Test: Perform OTA, pause and resume, verify that update succeeds
Bug: 70736331
Change-Id: Iaf157ef57e68e4842d5867dea5467a3ab34f8286
diff --git a/payload_consumer/download_action.h b/payload_consumer/download_action.h
index 61c93d2..740416d 100644
--- a/payload_consumer/download_action.h
+++ b/payload_consumer/download_action.h
@@ -131,6 +131,10 @@
// called or if CloseP2PSharingFd() has been called.
void WriteToP2PFile(const void* data, size_t length, off_t file_offset);
+ // Attempt to load cached manifest data from prefs
+ // return true on success, false otherwise.
+ bool LoadCachedManifest(int64_t manifest_size);
+
// Start downloading the current payload using delta_performer.
void StartDownloading();
