source: trunk-3.0/source/tests/os2_delete.c@ 103

Last change on this file since 103 was 1, checked in by Paul Smedley, 19 years ago

Initial code import
File size: 3.9 KB
Line 
1/*
2 test readdir/unlink pattern that OS/2 uses
3 tridge@samba.org July 2005
4*/
5
6#include <stdio.h>
7#include <stdlib.h>
8#include <sys/stat.h>
9#include <unistd.h>
10#include <sys/types.h>
11#include <dirent.h>
12#include <errno.h>
13#include <string.h>
14#include <fcntl.h>
15
16#define NUM_FILES 700
17#define READDIR_SIZE 100
18#define DELETE_SIZE 4
19
20#define TESTDIR "test.dir"
21
22#define FAILED(d) (fprintf(stderr, "Failed for %s - %s\n", d, strerror(errno)), exit(1), 1)
23
24#ifndef MIN
25#define MIN(a,b) ((a)<(b)?(a):(b))
26#endif
27
28static void cleanup(void)
29{
30 /* I'm a lazy bastard */
31 system("rm -rf " TESTDIR);
32 mkdir(TESTDIR, 0700) == 0 || FAILED("mkdir");
33}
34
35static void create_files()
36{
37 int i;
38 for (i=0;i<NUM_FILES;i++) {
39 char fname[40];
40 sprintf(fname, TESTDIR "/test%u.txt", i);
41 close(open(fname, O_CREAT|O_RDWR, 0600)) == 0 || FAILED("close");
42 }
43}
44
45static int os2_delete(DIR *d)
46{
47 off_t offsets[READDIR_SIZE];
48 int i, j;
49 struct dirent *de;
50 char names[READDIR_SIZE][30];
51
52 /* scan, remembering offsets */
53 for (i=0, de=readdir(d);
54 de && i < READDIR_SIZE;
55 de=readdir(d), i++) {
56 offsets[i] = telldir(d);
57 strcpy(names[i], de->d_name);
58 }
59
60 if (i == 0) {
61 return 0;
62 }
63
64 /* delete the first few */
65 for (j=0; j<MIN(i, DELETE_SIZE); j++) {
66 char fname[40];
67 sprintf(fname, TESTDIR "/%s", names[j]);
68 unlink(fname) == 0 || FAILED("unlink");
69 }
70
71 /* seek to just after the deletion */
72 seekdir(d, offsets[j-1]);
73
74 /* return number deleted */
75 return j;
76}
77
78int main(void)
79{
80 int total_deleted = 0;
81 DIR *d;
82 struct dirent *de;
83
84 cleanup();
85 create_files();
86
87 d = opendir(TESTDIR);
88
89 /* skip past . and .. */
90 de = readdir(d);
91 strcmp(de->d_name, ".") == 0 || FAILED("match .");
92 de = readdir(d);
93 strcmp(de->d_name, "..") == 0 || FAILED("match ..");
94
95 while (1) {
96 int n = os2_delete(d);
97 if (n == 0) break;
98 total_deleted += n;
99 }
100 closedir(d);
101
102 printf("Deleted %d files of %d\n", total_deleted, NUM_FILES);
103
104 rmdir(TESTDIR) == 0 || FAILED("rmdir");
105
106 return 0;
107}
108/*
109 test readdir/unlink pattern that OS/2 uses
110 tridge@samba.org July 2005
111*/
112
113#include <stdio.h>
114#include <stdlib.h>
115#include <sys/stat.h>
116#include <unistd.h>
117#include <sys/types.h>
118#include <dirent.h>
119#include <errno.h>
120#include <string.h>
121#include <fcntl.h>
122
123#define NUM_FILES 700
124#define READDIR_SIZE 100
125#define DELETE_SIZE 4
126
127#define TESTDIR "test.dir"
128
129#define FAILED(d) (fprintf(stderr, "Failed for %s - %s\n", d, strerror(errno)), exit(1), 1)
130
131#ifndef MIN
132#define MIN(a,b) ((a)<(b)?(a):(b))
133#endif
134
135static void cleanup(void)
136{
137 /* I'm a lazy bastard */
138 system("rm -rf " TESTDIR);
139 mkdir(TESTDIR, 0700) == 0 || FAILED("mkdir");
140}
141
142static void create_files()
143{
144 int i;
145 for (i=0;i<NUM_FILES;i++) {
146 char fname[40];
147 sprintf(fname, TESTDIR "/test%u.txt", i);
148 close(open(fname, O_CREAT|O_RDWR, 0600)) == 0 || FAILED("close");
149 }
150}
151
152static int os2_delete(DIR *d)
153{
154 off_t offsets[READDIR_SIZE];
155 int i, j;
156 struct dirent *de;
157 char names[READDIR_SIZE][30];
158
159 /* scan, remembering offsets */
160 for (i=0, de=readdir(d);
161 de && i < READDIR_SIZE;
162 de=readdir(d), i++) {
163 offsets[i] = telldir(d);
164 strcpy(names[i], de->d_name);
165 }
166
167 if (i == 0) {
168 return 0;
169 }
170
171 /* delete the first few */
172 for (j=0; j<MIN(i, DELETE_SIZE); j++) {
173 char fname[40];
174 sprintf(fname, TESTDIR "/%s", names[j]);
175 unlink(fname) == 0 || FAILED("unlink");
176 }
177
178 /* seek to just after the deletion */
179 seekdir(d, offsets[j-1]);
180
181 /* return number deleted */
182 return j;
183}
184
185int main(void)
186{
187 int total_deleted = 0;
188 DIR *d;
189 struct dirent *de;
190
191 cleanup();
192 create_files();
193
194 d = opendir(TESTDIR);
195
196 /* skip past . and .. */
197 de = readdir(d);
198 strcmp(de->d_name, ".") == 0 || FAILED("match .");
199 de = readdir(d);
200 strcmp(de->d_name, "..") == 0 || FAILED("match ..");
201
202 while (1) {
203 int n = os2_delete(d);
204 if (n == 0) break;
205 total_deleted += n;
206 }
207 closedir(d);
208
209 printf("Deleted %d files of %d\n", total_deleted, NUM_FILES);
210
211 rmdir(TESTDIR) == 0 || FAILED("rmdir");
212
213 return 0;
214}
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