8898456df4
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@38787 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
89 lines
2.3 KiB
C++
89 lines
2.3 KiB
C++
/////////////////////////////////////////////////////////////////////////////
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// Name: src/common/ipcbase.cpp
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// Purpose: IPC base classes
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// Author: Julian Smart
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// Modified by:
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// Created: 04/01/98
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// RCS-ID: $Id$
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// Copyright: (c) Julian Smart
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// Licence: wxWindows licence
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/////////////////////////////////////////////////////////////////////////////
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// For compilers that support precompilation, includes "wx.h".
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#include "wx/wxprec.h"
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#ifdef __BORLANDC__
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#pragma hdrstop
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#endif
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#ifndef WX_PRECOMP
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#endif
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#include "wx/ipcbase.h"
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IMPLEMENT_CLASS(wxServerBase, wxObject)
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IMPLEMENT_CLASS(wxClientBase, wxObject)
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IMPLEMENT_CLASS(wxConnectionBase, wxObject)
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wxConnectionBase::wxConnectionBase(wxChar *buffer, int bytes)
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: m_connected(true),
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m_buffer(buffer),
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m_buffersize(bytes),
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m_deletebufferwhendone(false)
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{
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if ( buffer == (wxChar *)NULL )
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{ // behave like next constructor
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m_buffersize = 0;
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m_deletebufferwhendone = true;
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}
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}
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wxConnectionBase::wxConnectionBase()
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: m_connected(true),
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m_buffer(NULL),
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m_buffersize(0),
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m_deletebufferwhendone(true)
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{
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}
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wxConnectionBase::wxConnectionBase(const wxConnectionBase& copy)
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: wxObject(),
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m_connected(copy.m_connected),
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m_buffer(copy.m_buffer),
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m_buffersize(copy.m_buffersize),
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m_deletebufferwhendone(false)
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{
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// copy constructor would require ref-counted pointer to buffer
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wxFAIL_MSG( _T("Copy constructor of wxConnectionBase not implemented") );
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}
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wxConnectionBase::~wxConnectionBase(void)
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{
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if ( m_deletebufferwhendone && m_buffer )
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delete m_buffer;
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}
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wxChar *wxConnectionBase::GetBufferAtLeast( size_t bytes )
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{
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if ( m_buffersize >= bytes )
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return m_buffer;
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else
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{ // need to resize buffer
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if ( m_deletebufferwhendone )
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{ // we're in charge of buffer, increase it
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if ( m_buffer )
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delete m_buffer;
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// the argument specifies **byte size**, but m_buffer is of type
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// wxChar. Under unicode: sizeof(wxChar) > 1, so the buffer size is
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// bytes / sizeof(wxChar) rounded upwards.
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m_buffer = new wxChar[(bytes + sizeof(wxChar) - 1) / sizeof(wxChar)];
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m_buffersize = bytes;
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return m_buffer;
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} // user-supplied buffer, fail
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else
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return NULL;
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}
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}
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