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Commit be0e44d0 authored Jan 21, 2020 by Alessio Balsini

snapshot: helper to get access snapshot_state path



/metadata/ota/snapshot_state is a temporary file that keeps track of
snapshot merge operations across reboots.

Bug: 138817833
Test: m
Change-Id: I9785db3f73e1575b8ac8a522d938d09f8948e1b0
Signed-off-by: Alessio Balsini <balsini@google.com>

parent e6f2b7d8

fs_mgr/libsnapshot/include/libsnapshot/snapshot.h

+4 −0

Original line number	Diff line number	Diff line
		@@ -395,6 +395,10 @@ class SnapshotManager final {
		bool WriteSnapshotUpdateStatus(LockedFile* file, const SnapshotUpdateStatus& status);
		std::string GetStateFilePath() const;

		// Interact with /metadata/ota/merge_state.
		// This file contains information related to the snapshot merge process.
		std::string GetMergeStateFilePath() const;

		// Helpers for merging.
		bool SwitchSnapshotToMerge(LockedFile* lock, const std::string& name);
		bool RewriteSnapshotDeviceTable(const std::string& dm_name);

fs_mgr/libsnapshot/snapshot.cpp

+4 −0

Original line number	Diff line number	Diff line
		@@ -1739,6 +1739,10 @@ std::string SnapshotManager::GetStateFilePath() const {
		return metadata_dir_ + "/state"s;
		}

		std::string SnapshotManager::GetMergeStateFilePath() const {
		return metadata_dir_ + "/merge_state"s;
		}

		std::string SnapshotManager::GetLockPath() const {
		return metadata_dir_;
		}