1: #include <stdio.h>
2: #include <stdlib.h>
3: #include <string.h>
4: #include <fcntl.h>
5: #include <sys/mman.h>
6: #include <aitio.h>
7:
8:
9: int
10: main(int argc, char **argv)
11: {
12: FILE *f;
13: char b[BUFSIZ];
14: void *p = NULL;
15:
16: if (argc < 2)
17: f = io_fmapopen(NULL, 0, 0, PROT_READ | PROT_WRITE, 0, 2000);
18: else
19: f = io_fmapopen(argv[1], O_RDWR, 0, PROT_READ | PROT_WRITE, MAP_SHARED, 0);
20: if (!f) {
21: printf("Error:: #%d - %s\n", io_GetErrno(), io_GetError());
22: return 1;
23: }
24:
25: fwrite("123456789", 10, 1, f);
26: fseek(f, 0, SEEK_SET);
27: memset(b, 0, sizeof b);
28: fread(b, sizeof b, 1, f);
29: printf("b=%s\n", b);
30: // fread(b, sizeof b, 1, f);
31: fwrite("***", 4, 1, f);
32: fwrite("*|\n", 3, 1, f);
33: fseek(f, 100, SEEK_CUR);
34: fwrite("oOo", 3, 1, f);
35: fseek(f, -10, SEEK_END);
36: fwrite("123456789", 10, 1, f);
37: fseek(f, -10, SEEK_END);
38: memset(b, 0, sizeof b);
39: fread(b, sizeof b, 1, f);
40: printf("2.b=%s\n", b);
41:
42: fclose(f);
43:
44: // part 2
45:
46: f = io_fmemopen(&p, 100);
47: if (!f) {
48: printf("Error:: #%d - %s\n", io_GetErrno(), io_GetError());
49: return 2;
50: }
51:
52: fwrite("123456789", 10, 1, f);
53: fseek(f, 0, SEEK_SET);
54: memset(b, 0, sizeof b);
55: fread(b, sizeof b, 1, f);
56: printf("b=%s\n", b);
57: // fread(b, sizeof b, 1, f);
58: fwrite("***", 4, 1, f);
59: fwrite("*|\n", 3, 1, f);
60: fseek(f, 100, SEEK_CUR);
61: fwrite("oOo", 3, 1, f);
62: fseek(f, -10, SEEK_END);
63: fwrite("123456789", 10, 1, f);
64: fseek(f, -10, SEEK_END);
65: memset(b, 0, sizeof b);
66: fread(b, sizeof b, 1, f);
67: printf("2.b=%s\n", b);
68:
69: fclose(f);
70:
71: // part 3
72:
73: p = malloc(10000);
74: f = io_fmemopen(&p, 10000);
75: if (!f) {
76: printf("Error:: #%d - %s\n", io_GetErrno(), io_GetError());
77: return 3;
78: }
79:
80: fwrite("123456789", 10, 1, f);
81: fseek(f, 0, SEEK_SET);
82: memset(b, 0, sizeof b);
83: fread(b, sizeof b, 1, f);
84: printf("b=%s\n", b);
85: // fread(b, sizeof b, 1, f);
86: fwrite("***", 4, 1, f);
87: fwrite("*|\n", 3, 1, f);
88: fseek(f, 100, SEEK_CUR);
89: fwrite("oOo", 3, 1, f);
90: fseek(f, -10, SEEK_END);
91: fwrite("123456789", 10, 1, f);
92: fseek(f, -10, SEEK_END);
93: memset(b, 0, sizeof b);
94: fread(b, sizeof b, 1, f);
95: printf("2.b=%s\n", b);
96:
97: fclose(f);
98: free(p);
99:
100: return 0;
101: }
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