/[pcsx2_0.9.7]/trunk/3rdparty/wxWidgets/src/msw/wince/filefnwce.cpp
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Contents of /trunk/3rdparty/wxWidgets/src/msw/wince/filefnwce.cpp

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Revision 10 - (show annotations) (download)
Mon Sep 6 11:40:06 2010 UTC (9 years, 9 months ago) by william
File size: 5383 byte(s)
exported r3113 from ./upstream/trunk
1 /////////////////////////////////////////////////////////////////////////////
2 // Name: src/msw/wince/filefn.cpp
3 // Purpose: File- and directory-related functions
4 // Author: Julian Smart
5 // Modified by:
6 // Created: 29/01/98
7 // RCS-ID: $Id: filefnwce.cpp 52111 2008-02-26 14:15:12Z JS $
8 // Copyright: (c) 1998 Julian Smart
9 // Licence: wxWindows licence
10 /////////////////////////////////////////////////////////////////////////////
11
12 // ============================================================================
13 // declarations
14 // ============================================================================
15
16 // ----------------------------------------------------------------------------
17 // headers
18 // ----------------------------------------------------------------------------
19
20 // For compilers that support precompilation, includes "wx.h".
21 #include "wx/wxprec.h"
22
23 #ifdef __BORLANDC__
24 #pragma hdrstop
25 #endif
26
27 #include "wx/file.h"
28
29 #include <ctype.h>
30 #include <stdio.h>
31 #include <stdlib.h>
32 #include <string.h>
33
34 #ifdef __WXWINCE__
35 #include "wx/msw/wince/missing.h"
36
37 int wxOpen(const wxChar *filename, int oflag, int WXUNUSED(pmode))
38 {
39 DWORD access = 0;
40 DWORD shareMode = 0;
41 DWORD disposition = 0;
42
43 if ((oflag & (O_RDONLY | O_WRONLY | O_RDWR)) == O_RDONLY)
44 {
45 access = GENERIC_READ;
46 shareMode = FILE_SHARE_READ|FILE_SHARE_WRITE;
47 disposition = OPEN_EXISTING;
48 }
49 else if ((oflag & (O_RDONLY | O_WRONLY | O_RDWR)) == O_WRONLY)
50 {
51 access = GENERIC_WRITE;
52 disposition = OPEN_ALWAYS;
53 }
54 else if ((oflag & (O_RDONLY | O_WRONLY | O_RDWR)) == O_RDWR)
55 {
56 access = GENERIC_READ|GENERIC_WRITE;
57 disposition = OPEN_ALWAYS;
58 }
59
60 if (oflag & O_APPEND)
61 {
62 if ( wxFile::Exists(filename) )
63 {
64 access |= GENERIC_WRITE;
65 shareMode = FILE_SHARE_READ;
66 disposition = OPEN_EXISTING;
67 }
68 else
69 {
70 oflag |= O_TRUNC;
71 }
72 }
73 if (oflag & O_TRUNC)
74 {
75 access |= GENERIC_WRITE;
76 shareMode = 0;
77 disposition = oflag & O_CREAT ? CREATE_ALWAYS : TRUNCATE_EXISTING;
78 }
79 else if (oflag & O_CREAT)
80 {
81 access |= GENERIC_WRITE;
82 shareMode = 0;
83 disposition = CREATE_NEW;
84 }
85 else if (oflag & O_EXCL)
86 {
87 access |= GENERIC_WRITE;
88 shareMode = 0;
89 disposition = TRUNCATE_EXISTING;
90 }
91
92 int fd = 0;
93 HANDLE fileHandle = ::CreateFile(filename, access, shareMode, NULL,
94 disposition, FILE_ATTRIBUTE_NORMAL, 0);
95 if (fileHandle == INVALID_HANDLE_VALUE)
96 fd = -1;
97 else
98 fd = (int) fileHandle;
99
100 return fd;
101 }
102
103 int wxAccess(const wxChar *name, int WXUNUSED(how))
104 {
105 HANDLE fileHandle = ::CreateFile(name, 0, FILE_SHARE_DELETE | FILE_SHARE_READ | FILE_SHARE_WRITE, NULL,
106 OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, 0);
107
108 if (fileHandle == INVALID_HANDLE_VALUE)
109 return -1;
110
111 CloseHandle(fileHandle);
112
113 return 0;
114 }
115
116 int wxClose(int fd)
117 {
118 if (CloseHandle((HANDLE)fd))
119 return 0;
120 return -1;
121 }
122
123 int wxEof(int fd)
124 {
125 DWORD off0 = SetFilePointer((HANDLE) fd, 0, NULL, FILE_CURRENT);
126 if (off0 == 0xFFFFFFFF && GetLastError() != NO_ERROR)
127 return -1;
128
129 DWORD off1 = SetFilePointer((HANDLE) fd, 0, NULL, FILE_END);
130 if (off1 == 0xFFFFFFFF && GetLastError() != NO_ERROR)
131 return -1;
132
133 if (off0 == off1)
134 return 1;
135 else
136 {
137 SetFilePointer((HANDLE) fd, off0, NULL, FILE_BEGIN);
138 return 0;
139 }
140 }
141
142 int wxRead(int fd, void *buf, unsigned int count)
143 {
144 DWORD bytesRead = 0;
145
146 if (ReadFile((HANDLE) fd, buf, (DWORD) count, &bytesRead, NULL))
147 return bytesRead;
148 else
149 return -1;
150 }
151
152 int wxWrite(int fd, const void *buf, unsigned int count)
153 {
154 DWORD bytesWritten = 0;
155
156 if (WriteFile((HANDLE) fd, buf, (DWORD) count, &bytesWritten, NULL))
157 return bytesWritten;
158 else
159 return -1;
160 }
161
162 __int64 wxSeek(int fd, __int64 offset, int origin)
163 {
164 int method;
165 switch ( origin ) {
166 default:
167 wxFAIL_MSG(_("unknown seek origin"));
168
169 case SEEK_SET:
170 method = FILE_BEGIN;
171 break;
172
173 case SEEK_CUR:
174 method = FILE_CURRENT;
175 break;
176
177 case SEEK_END:
178 method = FILE_END;
179 break;
180 }
181
182 DWORD res = SetFilePointer((HANDLE) fd, offset, NULL, method) ;
183 if (res == 0xFFFFFFFF && GetLastError() != NO_ERROR)
184 {
185 wxLogSysError(_("can't seek on file descriptor %d"), fd);
186 return wxInvalidOffset;
187 }
188 else
189 return (off_t)res;
190 }
191
192 __int64 wxTell(int fd)
193 {
194 // WinCE apparently doesn't support lpDistanceToMoveHigh.
195 // LONG high = 0;
196 DWORD res = SetFilePointer((HANDLE) fd, 0, NULL, FILE_CURRENT) ;
197 if (res == 0xFFFFFFFF && GetLastError() != NO_ERROR)
198 {
199 wxLogSysError(_("can't get seek position on file descriptor %d"), fd);
200 return wxInvalidOffset;
201 }
202 else
203 return res ; // + (((__int64)high) << 32);
204 }
205
206 int wxFsync(int WXUNUSED(fd))
207 {
208 return 0;
209 }
210
211 #endif //__WXWINCE__

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