Prefs: Implement and use Prefs::GetBoolean/SetBoolean.
Adds a pair of functions GetBoolean/SetBoolean to the list Prefs
class to read and write persisted boolean values. The stored
values are not compatible with the SetInt64 and will return
false when attempting to get or set a value of the other type.
These functions are now used to store the update over cellular
user setting.
BUG=chromium:213401
TEST=sudo ./update_engine_unittests
Change-Id: I44107e33f8e81ae900671d9ba6a4f5779c2353db
Reviewed-on: https://gerrit.chromium.org/gerrit/61352
Reviewed-by: Joy Chen <joychen@chromium.org>
Tested-by: Alex Deymo <deymo@chromium.org>
Reviewed-by: mukesh agrawal <quiche@chromium.org>
Commit-Queue: Alex Deymo <deymo@chromium.org>
diff --git a/prefs_interface.h b/prefs_interface.h
index 9456d52..0e7ad7d 100644
--- a/prefs_interface.h
+++ b/prefs_interface.h
@@ -34,6 +34,15 @@
// false otherwise.
virtual bool SetInt64(const std::string& key, const int64_t value) = 0;
+ // Gets a boolean |value| associated with |key|. Returns true on
+ // success, false on failure (including when the |key| is not
+ // present in the store).
+ virtual bool GetBoolean(const std::string& key, bool* value) = 0;
+
+ // Associates |key| with a boolean |value|. Returns true on success,
+ // false otherwise.
+ virtual bool SetBoolean(const std::string& key, const bool value) = 0;
+
// Returns true if the setting exists (i.e. a file with the given key
// exists in the prefs directory)
virtual bool Exists(const std::string& key) = 0;