Migrate primary external storage.
When requested, kick off a thread that will migrate storage contents
between two locations. This is performed in several steps that
also interact with the framework:
1. Take old and new volumes offline during migration
2. Wipe new location clean (10% of progress)
3. Copy files from old to new (60% of progress)
4. Inform framework that move was successful so it can persist
5. Wipe old location clean (15% of progress)
Derives a hacky progress estimate by using a rough proxy of free
disk space changes while a cp/rm is taking place.
Add new internal path for direct access to volumes to bypass any
FUSE emulation overhead, and send it to framework. Remove mutex
around various exec calls since setexeccon() is already per-thread.
Bug: 19993667
Change-Id: Ibcb4f6fe0126d05b2365f316f53e71dc3e79a2b8
diff --git a/Utils.h b/Utils.h
index 7e083f6..6ad87ae 100644
--- a/Utils.h
+++ b/Utils.h
@@ -69,6 +69,8 @@
status_t ForkExecvp(const std::vector<std::string>& args,
std::vector<std::string>& output, security_context_t context);
+pid_t ForkExecvpAsync(const std::vector<std::string>& args);
+
status_t ReadRandomBytes(size_t bytes, std::string& out);
/* Converts hex string to raw bytes, ignoring [ :-] */
@@ -76,6 +78,9 @@
/* Converts raw bytes to hex string */
status_t StrToHex(const std::string& str, std::string& hex);
+uint64_t GetFreeBytes(const std::string& path);
+uint64_t GetTreeBytes(const std::string& path);
+
} // namespace vold
} // namespace android