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1 | ///////////////////////////////////////////////////////////////////////////// | |
2 | // Name: src/common/ipcbase.cpp | |
3 | // Purpose: IPC base classes | |
4 | // Author: Julian Smart | |
5 | // Modified by: | |
6 | // Created: 04/01/98 | |
7 | // RCS-ID: $Id$ | |
8 | // Copyright: (c) Julian Smart | |
9 | // Licence: wxWindows licence | |
10 | ///////////////////////////////////////////////////////////////////////////// | |
11 | ||
12 | // For compilers that support precompilation, includes "wx.h". | |
13 | #include "wx/wxprec.h" | |
14 | ||
15 | #ifdef __BORLANDC__ | |
16 | #pragma hdrstop | |
17 | #endif | |
18 | ||
19 | #ifndef WX_PRECOMP | |
20 | #endif | |
21 | ||
22 | #include "wx/ipcbase.h" | |
23 | ||
24 | IMPLEMENT_CLASS(wxServerBase, wxObject) | |
25 | IMPLEMENT_CLASS(wxClientBase, wxObject) | |
26 | IMPLEMENT_CLASS(wxConnectionBase, wxObject) | |
27 | ||
28 | wxConnectionBase::wxConnectionBase(void *buffer, size_t bytes) | |
29 | : m_buffer((char *)buffer), | |
30 | m_buffersize(bytes), | |
31 | m_deletebufferwhendone(false), | |
32 | m_connected(true) | |
33 | { | |
34 | if ( buffer == NULL ) | |
35 | { // behave like next constructor | |
36 | m_buffersize = 0; | |
37 | m_deletebufferwhendone = true; | |
38 | } | |
39 | } | |
40 | ||
41 | wxConnectionBase::wxConnectionBase() | |
42 | : m_buffer(NULL), | |
43 | m_buffersize(0), | |
44 | m_deletebufferwhendone(true), | |
45 | m_connected(true) | |
46 | { | |
47 | } | |
48 | ||
49 | wxConnectionBase::wxConnectionBase(const wxConnectionBase& copy) | |
50 | : wxObject(), | |
51 | m_buffer(copy.m_buffer), | |
52 | m_buffersize(copy.m_buffersize), | |
53 | m_deletebufferwhendone(false), | |
54 | m_connected(copy.m_connected) | |
55 | ||
56 | { | |
57 | // copy constructor would require ref-counted pointer to buffer | |
58 | wxFAIL_MSG( _T("Copy constructor of wxConnectionBase not implemented") ); | |
59 | } | |
60 | ||
61 | ||
62 | wxConnectionBase::~wxConnectionBase(void) | |
63 | { | |
64 | if ( m_deletebufferwhendone && m_buffer ) | |
65 | delete m_buffer; | |
66 | } | |
67 | ||
68 | void *wxConnectionBase::GetBufferAtLeast( size_t bytes ) | |
69 | { | |
70 | if ( m_buffersize >= bytes ) | |
71 | return m_buffer; | |
72 | else | |
73 | { // need to resize buffer | |
74 | if ( m_deletebufferwhendone ) | |
75 | { // we're in charge of buffer, increase it | |
76 | if ( m_buffer ) | |
77 | delete m_buffer; | |
78 | m_buffer = new char[bytes]; | |
79 | m_buffersize = bytes; | |
80 | return m_buffer; | |
81 | } // user-supplied buffer, fail | |
82 | else | |
83 | return NULL; | |
84 | } | |
85 | } |