Fix for ICE-4841 - added no copy option when creating input stream

1 files changed, 19 insertions, 1 deletions

diff --git a/cpp/src/Ice/Buffer.cpp b/cpp/src/Ice/Buffer.cpp
index bed4c088b92..ec1fdf6730a 100644
--- a/cpp/src/Ice/Buffer.cpp
+++ b/cpp/src/Ice/Buffer.cpp
@@ -30,14 +30,28 @@ IceInternal::Buffer::Container::Container(size_type maxCapacity) :
 {
 }
 
+IceInternal::Buffer::Container::Container(const_iterator beg, const_iterator end) :
+    _buf(const_cast<iterator>(beg)),
+    _size(end - beg),
+    _capacity(0),
+    _maxCapacity(0),
+    _shrinkCounter(0)
+{
+}
+
 IceInternal::Buffer::Container::~Container()
 {
-    ::free(_buf);
+    if(_buf && _capacity > 0)
+    {
+        ::free(_buf);
+    }
 }
 
 void
 IceInternal::Buffer::Container::swap(Container& other)
 {
+    assert(!_buf || _capacity > 0);
+
     std::swap(_buf, other._buf);
 
     std::swap(_size, other._size);
@@ -48,6 +62,8 @@ IceInternal::Buffer::Container::swap(Container& other)
 void
 IceInternal::Buffer::Container::clear()
 {
+    assert(!_buf || _capacity > 0);
+
     free(_buf);
     _buf = 0;
     _size = 0;
@@ -57,6 +73,8 @@ IceInternal::Buffer::Container::clear()
 void
 IceInternal::Buffer::Container::reserve(size_type n)
 {
+    assert(!_buf || _capacity > 0);
+
     size_type c = _capacity;
     if(n > _capacity)
     {