1 files changed, 83 insertions, 0 deletions
diff --git a/cpp/src/Ice/Buffer.cpp b/cpp/src/Ice/Buffer.cpp
new file mode 100644
index 00000000000..516721d8fd7
--- /dev/null
+++ b/cpp/src/Ice/Buffer.cpp
@@ -0,0 +1,83 @@
+// **********************************************************************
+//
+// Copyright (c) 2003-2011 ZeroC, Inc. All rights reserved.
+//
+// This copy of Ice is licensed to you under the terms described in the
+// ICE_LICENSE file included in this distribution.
+//
+// **********************************************************************
+
+#include <Ice/Buffer.h>
+#include <Ice/LocalException.h>
+
+using namespace std;
+using namespace Ice;
+using namespace IceInternal;
+
+void
+IceInternal::Buffer::swapBuffer(Buffer& other)
+{
+    b.swap(other.b);
+    std::swap(i, other.i); 
+}
+
+IceInternal::Buffer::Container::Container(size_type maxCapacity) :
+    _buf(0),
+    _size(0),
+    _capacity(0),
+    _maxCapacity(maxCapacity)
+{
+}
+
+IceInternal::Buffer::Container::~Container()
+{
+    ::free(_buf);
+}
+
+void
+IceInternal::Buffer::Container::swap(Container& other)
+{
+    std::swap(_buf, other._buf);
+
+    std::swap(_size, other._size);
+    std::swap(_capacity, other._capacity);
+    std::swap(_shrinkCounter, other._shrinkCounter);
+}
+
+void
+IceInternal::Buffer::Container::clear()
+{
+    free(_buf);
+    _buf = 0;
+    _size = 0;
+    _capacity = 0;
+}
+
+void
+IceInternal::Buffer::Container::reserve(size_type n)
+{
+    size_type c = _capacity;
+    if(n > _capacity)
+    {
+        _capacity = std::max<size_type>(n, std::min(2 * _capacity, _maxCapacity));
+        _capacity = std::max<size_type>(static_cast<size_type>(240), _capacity);
+    }
+    else if(n < _capacity)
+    {
+        _capacity = n;
+    }
+    else
+    {
+        return;
+    }
+    
+    pointer p = reinterpret_cast<pointer>(::realloc(_buf, _capacity));
+    if(!p)
+    {
+        _capacity = c; // Restore the previous capacity.
+        SyscallException ex(__FILE__, __LINE__);
+        ex.error = getSystemErrno();
+        throw ex;
+    }
+    _buf = p;
+}