Add HandleManager debug statements.

Object memory management is a very important aspect of TPM programming,
and can lead to hard to diagnose errors. This adds debug statements
for the addition and removal of object handles to assist in tracing
when an object is added or removed.

Signed-off-by: William Brown <william.brown@suse.com>

Author: Firstyear

tss-esapi/src/context/handle_manager.rs

@@ -48,6 +48,7 @@ impl HandleManager {
             }
         }
 
+        log::trace!("add handle {:#010X}", handle.value());
         let _ = self.open_handles.insert(handle, handle_drop_action);
         Ok(())
     }
@@ -58,6 +59,7 @@ impl HandleManager {
     /// If the handle was not set to be flushed then this will cause an
     /// error but the handle will still be removed from the handler.
     pub fn set_as_flushed(&mut self, handle: ObjectHandle) -> Result<()> {
+        log::trace!("set as flushed handle {:#010X}", handle.value());
         self.open_handles
             .remove(&handle)
             .ok_or_else(|| {
@@ -83,6 +85,7 @@ impl HandleManager {
     /// If the handle was set to be flushed then this will cause an
     /// error but the handle will still be removed from the handler.
     pub fn set_as_closed(&mut self, handle: ObjectHandle) -> Result<()> {
+        log::trace!("set as closed handle {:#010X}", handle.value());
         self.open_handles
             .remove(&handle)
             .ok_or_else(|| {