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// **********************************************************************
//
// Copyright (c) 2003-2010 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;
}
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