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1 | ///////////////////////////////////////////////////////////////////////////// |
2 | // Name: ipcbase.cpp | |
3 | // Purpose: IPC base classes | |
4 | // Author: Julian Smart | |
5 | // Modified by: | |
6 | // Created: 04/01/98 | |
7 | // RCS-ID: $Id$ | |
55d99c7a | 8 | // Copyright: (c) Julian Smart |
7beb59f3 | 9 | // Licence: wxWindows licence |
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10 | ///////////////////////////////////////////////////////////////////////////// |
11 | ||
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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 | #include "wx/defs.h" | |
21 | #endif | |
22 | ||
23 | #include "wx/ipcbase.h" | |
24 | ||
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25 | IMPLEMENT_CLASS(wxServerBase, wxObject) |
26 | IMPLEMENT_CLASS(wxClientBase, wxObject) | |
27 | IMPLEMENT_CLASS(wxConnectionBase, wxObject) | |
c801d85f | 28 | |
9d860992 | 29 | wxConnectionBase::wxConnectionBase(wxChar *buffer, int bytes) |
7beb59f3 | 30 | : m_connected(true), |
b7282ad2 | 31 | m_buffer(buffer), |
9d860992 | 32 | m_buffersize(bytes), |
7beb59f3 | 33 | m_deletebufferwhendone(false) |
44379ce6 JS |
34 | { |
35 | if ( buffer == (wxChar *)NULL ) | |
36 | { // behave like next constructor | |
37 | m_buffersize = 0; | |
7beb59f3 | 38 | m_deletebufferwhendone = true; |
44379ce6 JS |
39 | } |
40 | } | |
41 | ||
42 | wxConnectionBase::wxConnectionBase() | |
7beb59f3 | 43 | : m_connected(true), |
bbcd408a JS |
44 | m_buffer(NULL), |
45 | m_buffersize(0), | |
7beb59f3 | 46 | m_deletebufferwhendone(true) |
44379ce6 JS |
47 | { |
48 | } | |
49 | ||
fbfb8bcc | 50 | wxConnectionBase::wxConnectionBase(const wxConnectionBase& copy) |
60431236 WS |
51 | : wxObject(), |
52 | m_connected(copy.m_connected), | |
bbcd408a JS |
53 | m_buffer(copy.m_buffer), |
54 | m_buffersize(copy.m_buffersize), | |
7beb59f3 | 55 | m_deletebufferwhendone(false) |
bbcd408a | 56 | |
44379ce6 JS |
57 | { |
58 | // copy constructor would require ref-counted pointer to buffer | |
59 | wxFAIL_MSG( _T("Copy constructor of wxConnectionBase not implemented") ); | |
60 | } | |
61 | ||
62 | ||
63 | wxConnectionBase::~wxConnectionBase(void) | |
64 | { | |
65 | if ( m_deletebufferwhendone && m_buffer ) | |
66 | delete m_buffer; | |
67 | } | |
68 | ||
69 | wxChar *wxConnectionBase::GetBufferAtLeast( size_t bytes ) | |
70 | { | |
71 | if ( m_buffersize >= bytes ) | |
72 | return m_buffer; | |
73 | else | |
74 | { // need to resize buffer | |
75 | if ( m_deletebufferwhendone ) | |
76 | { // we're in charge of buffer, increase it | |
01d0d0e5 | 77 | if ( m_buffer ) |
44379ce6 | 78 | delete m_buffer; |
9d860992 JS |
79 | // the argument specifies **byte size**, but m_buffer is of type |
80 | // wxChar. Under unicode: sizeof(wxChar) > 1, so the buffer size is | |
81 | // bytes / sizeof(wxChar) rounded upwards. | |
82 | m_buffer = new wxChar[(bytes + sizeof(wxChar) - 1) / sizeof(wxChar)]; | |
44379ce6 JS |
83 | m_buffersize = bytes; |
84 | return m_buffer; | |
85 | } // user-supplied buffer, fail | |
86 | else | |
87 | return NULL; | |
88 | } | |
89 | } | |
c801d85f | 90 |