sim: Add a checkpoint function to test for entries

When loading a checkpoint, it's sometimes desirable to be able to test
whether an entry within a secion exists. This is currently done
automatically in the UNSERIALIZE_OPT_SCALAR macro, but it isn't
possible to do for arrays, containers, or enums. Instead of adding
even more macros, add a helper function (CheckpointIn::entryExists())
that tests for the presence of an entry.

Change-Id: I4b4646b03276b889fd3916efefff3bd552317dbc
Signed-off-by: Andreas Sandberg <andreas.sandberg@arm.com>
Reviewed-by: Nikos Nikoleris <nikos.nikoleris@arm.com>

1 files changed, 6 insertions, 0 deletions

diff --git a/src/base/inifile.hh b/src/base/inifile.hh
index b4892d60a..447ec7c0f 100644
--- a/src/base/inifile.hh
+++ b/src/base/inifile.hh
@@ -184,6 +184,12 @@ class IniFile
     bool find(const std::string &section, const std::string &entry,
               std::string &value) const;
 
+    /// Determine whether the entry exists within named section exists
+    /// in the .ini file.
+    /// @return True if the section exists.
+    bool entryExists(const std::string &section,
+                     const std::string &entry) const;
+
     /// Determine whether the named section exists in the .ini file.
     /// Note that the 'Section' class is (intentionally) not public,
     /// so all clients can do is get a bool that says whether there