質問編集履歴
2
誤字
test
CHANGED
|
File without changes
|
test
CHANGED
|
@@ -58,11 +58,11 @@
|
|
|
58
58
|
|
|
59
59
|
|
|
60
60
|
|
|
61
|
-
#include <stdio.h>
|
|
61
|
+
\#include <stdio.h>
|
|
62
|
-
|
|
62
|
+
|
|
63
|
-
#include <windows.h>
|
|
63
|
+
\#include <windows.h>
|
|
64
|
-
|
|
64
|
+
|
|
65
|
-
#include <conio.h>
|
|
65
|
+
\#include <conio.h>
|
|
66
66
|
|
|
67
67
|
|
|
68
68
|
|
1
エラーメッセージ・コード・環境の追記
test
CHANGED
|
File without changes
|
test
CHANGED
|
@@ -21,3 +21,277 @@
|
|
|
21
21
|
|
|
22
22
|
|
|
23
23
|
稚拙な説明で申し訳ございませんが、何卒よろしくお願いいたします。
|
|
24
|
+
|
|
25
|
+
|
|
26
|
+
|
|
27
|
+
|
|
28
|
+
|
|
29
|
+
◆追記
|
|
30
|
+
|
|
31
|
+
|
|
32
|
+
|
|
33
|
+
|
|
34
|
+
|
|
35
|
+
環境：Microsoft Visual Studio Community 2019 Version 16.7.2
|
|
36
|
+
|
|
37
|
+
|
|
38
|
+
|
|
39
|
+
エラーメッセージ：Bull様が提示してくださった通り、
|
|
40
|
+
|
|
41
|
+
Debug Assertion Failed!
|
|
42
|
+
|
|
43
|
+
Expression: (L"Buffer is too small" && 0)
|
|
44
|
+
|
|
45
|
+
と表示されます。
|
|
46
|
+
|
|
47
|
+
|
|
48
|
+
|
|
49
|
+
コード：dodox86様、Bull様のおっしゃる通り、
|
|
50
|
+
|
|
51
|
+
上記のコードを編集し、現在は以下の通りです。
|
|
52
|
+
|
|
53
|
+
scanf,gets等はscanf_s等、対応するものに書き換えました。
|
|
54
|
+
|
|
55
|
+
|
|
56
|
+
|
|
57
|
+
/* filemapping01.c */
|
|
58
|
+
|
|
59
|
+
|
|
60
|
+
|
|
61
|
+
#include <stdio.h>
|
|
62
|
+
|
|
63
|
+
#include <windows.h>
|
|
64
|
+
|
|
65
|
+
#include <conio.h>
|
|
66
|
+
|
|
67
|
+
|
|
68
|
+
|
|
69
|
+
int FRead(LPSTR);
|
|
70
|
+
|
|
71
|
+
int FWrite(LPSTR);
|
|
72
|
+
|
|
73
|
+
|
|
74
|
+
|
|
75
|
+
HANDLE hFMWrite;
|
|
76
|
+
|
|
77
|
+
|
|
78
|
+
|
|
79
|
+
|
|
80
|
+
|
|
81
|
+
int main()
|
|
82
|
+
|
|
83
|
+
{
|
|
84
|
+
|
|
85
|
+
|
|
86
|
+
|
|
87
|
+
static LPSTR lpAddress1, lpAddress2;
|
|
88
|
+
|
|
89
|
+
|
|
90
|
+
|
|
91
|
+
int szNo=0;
|
|
92
|
+
|
|
93
|
+
BOOL bEnd = FALSE;
|
|
94
|
+
|
|
95
|
+
|
|
96
|
+
|
|
97
|
+
while (1) {
|
|
98
|
+
|
|
99
|
+
printf("***************\n");
|
|
100
|
+
|
|
101
|
+
printf("1. Writre\n");
|
|
102
|
+
|
|
103
|
+
printf("2. Read\n");
|
|
104
|
+
|
|
105
|
+
printf("0. End\n");
|
|
106
|
+
|
|
107
|
+
printf("***************\n");
|
|
108
|
+
|
|
109
|
+
printf("No. = ");
|
|
110
|
+
|
|
111
|
+
scanf_s("%d",&szNo);
|
|
112
|
+
|
|
113
|
+
|
|
114
|
+
|
|
115
|
+
switch (szNo) {
|
|
116
|
+
|
|
117
|
+
case 1:
|
|
118
|
+
|
|
119
|
+
FWrite(lpAddress1);
|
|
120
|
+
|
|
121
|
+
break;
|
|
122
|
+
|
|
123
|
+
case 2:
|
|
124
|
+
|
|
125
|
+
FRead(lpAddress2);
|
|
126
|
+
|
|
127
|
+
break;
|
|
128
|
+
|
|
129
|
+
case 0:
|
|
130
|
+
|
|
131
|
+
bEnd = TRUE;
|
|
132
|
+
|
|
133
|
+
break;
|
|
134
|
+
|
|
135
|
+
default:
|
|
136
|
+
|
|
137
|
+
printf("正しくない番号です\n\n");
|
|
138
|
+
|
|
139
|
+
break;
|
|
140
|
+
|
|
141
|
+
}
|
|
142
|
+
|
|
143
|
+
if (bEnd)
|
|
144
|
+
|
|
145
|
+
break;
|
|
146
|
+
|
|
147
|
+
}
|
|
148
|
+
|
|
149
|
+
|
|
150
|
+
|
|
151
|
+
|
|
152
|
+
|
|
153
|
+
if (hFMWrite) {
|
|
154
|
+
|
|
155
|
+
if (CloseHandle(hFMWrite) == 0)
|
|
156
|
+
|
|
157
|
+
printf("書き込みハンドルクローズ失敗\n");
|
|
158
|
+
|
|
159
|
+
else
|
|
160
|
+
|
|
161
|
+
printf("書き込みハンドルクローズ成功\n");
|
|
162
|
+
|
|
163
|
+
}
|
|
164
|
+
|
|
165
|
+
|
|
166
|
+
|
|
167
|
+
return 0;
|
|
168
|
+
|
|
169
|
+
}
|
|
170
|
+
|
|
171
|
+
|
|
172
|
+
|
|
173
|
+
int FWrite(LPSTR lpStr)
|
|
174
|
+
|
|
175
|
+
{
|
|
176
|
+
|
|
177
|
+
char szStr[1024];
|
|
178
|
+
|
|
179
|
+
|
|
180
|
+
|
|
181
|
+
if (!hFMWrite)
|
|
182
|
+
|
|
183
|
+
CloseHandle(hFMWrite);
|
|
184
|
+
|
|
185
|
+
|
|
186
|
+
|
|
187
|
+
|
|
188
|
+
|
|
189
|
+
hFMWrite = CreateFileMapping(
|
|
190
|
+
|
|
191
|
+
(HANDLE)-1,
|
|
192
|
+
|
|
193
|
+
NULL,
|
|
194
|
+
|
|
195
|
+
PAGE_READWRITE,
|
|
196
|
+
|
|
197
|
+
0,
|
|
198
|
+
|
|
199
|
+
1024,
|
|
200
|
+
|
|
201
|
+
"NEKODEMOWAKARU");
|
|
202
|
+
|
|
203
|
+
if (hFMWrite == NULL)
|
|
204
|
+
|
|
205
|
+
return -1;
|
|
206
|
+
|
|
207
|
+
if (GetLastError() == ERROR_ALREADY_EXISTS)
|
|
208
|
+
|
|
209
|
+
printf("すでにマッピングオブジェクトが存在しました\n");
|
|
210
|
+
|
|
211
|
+
|
|
212
|
+
|
|
213
|
+
lpStr = (LPSTR)MapViewOfFile(hFMWrite,
|
|
214
|
+
|
|
215
|
+
FILE_MAP_ALL_ACCESS, 0, 0, 0);
|
|
216
|
+
|
|
217
|
+
if (lpStr == NULL)
|
|
218
|
+
|
|
219
|
+
return -2;
|
|
220
|
+
|
|
221
|
+
|
|
222
|
+
|
|
223
|
+
printf("書き込み==");
|
|
224
|
+
|
|
225
|
+
scanf_s(szStr,1024);
|
|
226
|
+
|
|
227
|
+
strcpy_s(lpStr,1024, szStr);
|
|
228
|
+
|
|
229
|
+
strcat_s(lpStr,1024, "\n");
|
|
230
|
+
|
|
231
|
+
|
|
232
|
+
|
|
233
|
+
UnmapViewOfFile(lpStr);
|
|
234
|
+
|
|
235
|
+
|
|
236
|
+
|
|
237
|
+
printf("書き込みました\n");
|
|
238
|
+
|
|
239
|
+
return 0;
|
|
240
|
+
|
|
241
|
+
}
|
|
242
|
+
|
|
243
|
+
|
|
244
|
+
|
|
245
|
+
int FRead(LPSTR lpStr)
|
|
246
|
+
|
|
247
|
+
{
|
|
248
|
+
|
|
249
|
+
HANDLE hFM;
|
|
250
|
+
|
|
251
|
+
|
|
252
|
+
|
|
253
|
+
hFM = OpenFileMapping(FILE_MAP_ALL_ACCESS, FALSE, "NEKODEMOWAKARU");
|
|
254
|
+
|
|
255
|
+
|
|
256
|
+
|
|
257
|
+
lpStr = (LPSTR)MapViewOfFile(hFM,
|
|
258
|
+
|
|
259
|
+
FILE_MAP_ALL_ACCESS, 0, 0, 0);
|
|
260
|
+
|
|
261
|
+
|
|
262
|
+
|
|
263
|
+
if (lpStr == NULL) {
|
|
264
|
+
|
|
265
|
+
printf("受信失敗\n");
|
|
266
|
+
|
|
267
|
+
CloseHandle(hFM);
|
|
268
|
+
|
|
269
|
+
return -1;
|
|
270
|
+
|
|
271
|
+
}
|
|
272
|
+
|
|
273
|
+
printf(lpStr);
|
|
274
|
+
|
|
275
|
+
if (UnmapViewOfFile(lpStr) == 0) {
|
|
276
|
+
|
|
277
|
+
printf("読み込み用アドレスアンマップ失敗\n");
|
|
278
|
+
|
|
279
|
+
}
|
|
280
|
+
|
|
281
|
+
else {
|
|
282
|
+
|
|
283
|
+
printf("読み込み用アドレスアンマップ成功\n");
|
|
284
|
+
|
|
285
|
+
lpStr = NULL;
|
|
286
|
+
|
|
287
|
+
}
|
|
288
|
+
|
|
289
|
+
|
|
290
|
+
|
|
291
|
+
CloseHandle(hFM);
|
|
292
|
+
|
|
293
|
+
|
|
294
|
+
|
|
295
|
+
return 0;
|
|
296
|
+
|
|
297
|
+
}
|