Move buffer to the details namespace

2 files changed, 96 insertions, 0 deletions

diff --git a/odb/details/buffer.cxx b/odb/details/buffer.cxx
new file mode 100644
index 0000000..0d02460
--- /dev/null
+++ b/odb/details/buffer.cxx
@@ -0,0 +1,37 @@
+// file      : odb/details/buffer.cxx
+// author    : Boris Kolpackov <boris@codesynthesis.com>
+// copyright : Copyright (c) 2009-2010 Code Synthesis Tools CC
+// license   : GNU GPL v2; see accompanying LICENSE file
+
+#include <cstring> // std::memcpy
+
+#include <odb/details/buffer.hxx>
+
+using namespace std;
+
+namespace odb
+{
+  namespace details
+  {
+    void buffer::
+    capacity (size_t c, size_t data_size)
+    {
+      if (c > capacity_)
+      {
+        size_t n (capacity_ * 2 > c ? capacity_ * 2 : c);
+        char* d (static_cast<char*> (operator new (n)));
+
+        if (data_ != 0)
+        {
+          if (data_size != 0)
+            memcpy (d, data_, data_size);
+
+          operator delete (data_);
+        }
+
+        data_ = d;
+        capacity_ = n;
+      }
+    }
+  }
+}
diff --git a/odb/details/buffer.hxx b/odb/details/buffer.hxx
new file mode 100644
index 0000000..4393114
--- /dev/null
+++ b/odb/details/buffer.hxx
@@ -0,0 +1,59 @@
+// file      : odb/details/buffer.hxx
+// author    : Boris Kolpackov <boris@codesynthesis.com>
+// copyright : Copyright (c) 2009-2010 Code Synthesis Tools CC
+// license   : GNU GPL v2; see accompanying LICENSE file
+
+#ifndef ODB_BUFFER_DETAILS_HXX
+#define ODB_BUFFER_DETAILS_HXX
+
+#include <new>
+#include <cstddef> // std::size_t
+
+namespace odb
+{
+  namespace details
+  {
+    class buffer
+    {
+    public:
+      ~buffer ()
+      {
+        if (data_)
+          operator delete (data_);
+      }
+
+      buffer ()
+          : capacity_ (512)
+      {
+        data_ = static_cast<char*> (operator new (capacity_));
+      }
+
+      char*
+      data ()
+      {
+        return data_;
+      }
+
+      const char*
+      data () const
+      {
+        return data_;
+      }
+
+      std::size_t
+      capacity () const
+      {
+        return capacity_;
+      }
+
+      void
+      capacity (std::size_t, std::size_t data_size = 0);
+
+    private:
+      char* data_;
+      std::size_t capacity_;
+    };
+  }
+}
+
+#endif // ODB_BUFFER_DETAILS_HXX