From 11eecb7f91a7cbbcde676727a2aba1b5838b83d9 Mon Sep 17 00:00:00 2001
From: Boris Kolpackov <boris@codesynthesis.com>
Date: Fri, 19 Sep 2014 14:35:46 +0200
Subject: Add stderr_full_tracer that additionally traces statement preparation

---
 odb/forward.hxx |  1 +
 odb/tracer.cxx  | 30 +++++++++++++++++++++++++++++-
 2 files changed, 30 insertions(+), 1 deletion(-)

diff --git a/odb/forward.hxx b/odb/forward.hxx
index c727215..2e54471 100644
--- a/odb/forward.hxx
+++ b/odb/forward.hxx
@@ -59,6 +59,7 @@ namespace odb
   //
   class tracer; // Not in core.
   extern LIBODB_EXPORT tracer& stderr_tracer;
+  extern LIBODB_EXPORT tracer& stderr_full_tracer;
 
   namespace common
   {
diff --git a/odb/tracer.cxx b/odb/tracer.cxx
index 6a617f4..ec79033 100644
--- a/odb/tracer.cxx
+++ b/odb/tracer.cxx
@@ -42,27 +42,55 @@ namespace odb
 
   class stderr_tracer_type: public tracer
   {
+  public:
+    stderr_tracer_type (bool full): full_ (full) {}
+
+    virtual void
+    prepare (connection&, const statement&);
+
     virtual void
     execute (connection&, const char* statement);
 
+    virtual void
+    deallocate (connection&, const statement&);
+
     // Override the other version to get rid of a Sun CC warning.
     //
     virtual void
     execute (connection&, const statement&);
+
+  private:
+    bool full_;
   };
 
   void stderr_tracer_type::
+  prepare (connection&, const statement& s)
+  {
+    if (full_)
+      cerr << "PREPARE " << s.text () << endl;
+  }
+
+  void stderr_tracer_type::
   execute (connection&, const char* s)
   {
     cerr << s << endl;
   }
 
   void stderr_tracer_type::
+  deallocate (connection&, const statement& s)
+  {
+    if (full_)
+      cerr << "DEALLOCATE " << s.text () << endl;
+  }
+
+  void stderr_tracer_type::
   execute (connection& c, const statement& s)
   {
     execute (c, s.text ());
   }
 
-  static stderr_tracer_type stderr_tracer_;
+  static stderr_tracer_type stderr_tracer_ (false);
+  static stderr_tracer_type stderr_full_tracer_ (true);
   tracer& stderr_tracer = stderr_tracer_;
+  tracer& stderr_full_tracer = stderr_full_tracer_;
 }
-- 
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