wx: Fix callback problems

Commands could be executed twice, if the command was dispatched
from a callback and caused a recursive invocation of command loop.
Solution is to mark op as -1 before calling wxWidgets.

Also commands could be missed when idle processing was done inside
while executing a recursive callback, solved be always resetting peak
index after idle processing is done.

1 files changed, 2 insertions, 2 deletions

diff --git a/lib/wx/c_src/wxe_helpers.cpp b/lib/wx/c_src/wxe_helpers.cpp
index 76958a346f..4798e605e8 100644
--- a/lib/wx/c_src/wxe_helpers.cpp
+++ b/lib/wx/c_src/wxe_helpers.cpp
@@ -47,8 +47,8 @@ void wxeCommand::Delete()
     if(len > 64)
       driver_free(buffer);
     buffer = NULL;
-    op = -1;
   }
+  op = -1;
 }
 
 /* ****************************************************************************
@@ -226,7 +226,7 @@ unsigned int wxeFifo::Cleanup(unsigned int def)
     // Realloced we need to start from the beginning
     return 0;
   } else {
-    return def;
+    return def < cb_start? def : cb_start;
   }
 }