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00006 #include <stdio.h>
00007 #include <stdlib.h>
00008 #include <sys/stat.h>
00009 #include <unistd.h>
00010 #include <sys/types.h>
00011 #include <dirent.h>
00012 #include <errno.h>
00013 #include <string.h>
00014 #include <fcntl.h>
00015
00016 #define NUM_FILES 700
00017 #define READDIR_SIZE 100
00018 #define DELETE_SIZE 4
00019
00020 #define TESTDIR "test.dir"
00021
00022 #define FAILED(d) (fprintf(stderr, "Failed for %s - %s\n", d, strerror(errno)), exit(1), 1)
00023
00024 #ifndef MIN
00025 #define MIN(a,b) ((a)<(b)?(a):(b))
00026 #endif
00027
00028 static void cleanup(void)
00029 {
00030
00031 system("rm -rf " TESTDIR);
00032 mkdir(TESTDIR, 0700) == 0 || FAILED("mkdir");
00033 }
00034
00035 static void create_files()
00036 {
00037 int i;
00038 for (i=0;i<NUM_FILES;i++) {
00039 char fname[40];
00040 sprintf(fname, TESTDIR "/test%u.txt", i);
00041 close(open(fname, O_CREAT|O_RDWR, 0600)) == 0 || FAILED("close");
00042 }
00043 }
00044
00045 static int os2_delete(DIR *d)
00046 {
00047 off_t offsets[READDIR_SIZE];
00048 int i, j;
00049 struct dirent *de;
00050 char names[READDIR_SIZE][30];
00051
00052
00053 for (i=0, de=readdir(d);
00054 de && i < READDIR_SIZE;
00055 de=readdir(d), i++) {
00056 offsets[i] = telldir(d);
00057 strcpy(names[i], de->d_name);
00058 }
00059
00060 if (i == 0) {
00061 return 0;
00062 }
00063
00064
00065 for (j=0; j<MIN(i, DELETE_SIZE); j++) {
00066 char fname[40];
00067 sprintf(fname, TESTDIR "/%s", names[j]);
00068 unlink(fname) == 0 || FAILED("unlink");
00069 }
00070
00071
00072 seekdir(d, offsets[j-1]);
00073
00074
00075 return j;
00076 }
00077
00078 int main(void)
00079 {
00080 int total_deleted = 0;
00081 DIR *d;
00082 struct dirent *de;
00083
00084 cleanup();
00085 create_files();
00086
00087 d = opendir(TESTDIR);
00088
00089
00090 de = readdir(d);
00091 strcmp(de->d_name, ".") == 0 || FAILED("match .");
00092 de = readdir(d);
00093 strcmp(de->d_name, "..") == 0 || FAILED("match ..");
00094
00095 while (1) {
00096 int n = os2_delete(d);
00097 if (n == 0) break;
00098 total_deleted += n;
00099 }
00100 closedir(d);
00101
00102 printf("Deleted %d files of %d\n", total_deleted, NUM_FILES);
00103
00104 rmdir(TESTDIR) == 0 || FAILED("rmdir");
00105
00106 return 0;
00107 }
00108
00109
00110
00111
00112
00113 #include <stdio.h>
00114 #include <stdlib.h>
00115 #include <sys/stat.h>
00116 #include <unistd.h>
00117 #include <sys/types.h>
00118 #include <dirent.h>
00119 #include <errno.h>
00120 #include <string.h>
00121 #include <fcntl.h>
00122
00123 #define NUM_FILES 700
00124 #define READDIR_SIZE 100
00125 #define DELETE_SIZE 4
00126
00127 #define TESTDIR "test.dir"
00128
00129 #define FAILED(d) (fprintf(stderr, "Failed for %s - %s\n", d, strerror(errno)), exit(1), 1)
00130
00131 #ifndef MIN
00132 #define MIN(a,b) ((a)<(b)?(a):(b))
00133 #endif
00134
00135 static void cleanup(void)
00136 {
00137
00138 system("rm -rf " TESTDIR);
00139 mkdir(TESTDIR, 0700) == 0 || FAILED("mkdir");
00140 }
00141
00142 static void create_files()
00143 {
00144 int i;
00145 for (i=0;i<NUM_FILES;i++) {
00146 char fname[40];
00147 sprintf(fname, TESTDIR "/test%u.txt", i);
00148 close(open(fname, O_CREAT|O_RDWR, 0600)) == 0 || FAILED("close");
00149 }
00150 }
00151
00152 static int os2_delete(DIR *d)
00153 {
00154 off_t offsets[READDIR_SIZE];
00155 int i, j;
00156 struct dirent *de;
00157 char names[READDIR_SIZE][30];
00158
00159
00160 for (i=0, de=readdir(d);
00161 de && i < READDIR_SIZE;
00162 de=readdir(d), i++) {
00163 offsets[i] = telldir(d);
00164 strcpy(names[i], de->d_name);
00165 }
00166
00167 if (i == 0) {
00168 return 0;
00169 }
00170
00171
00172 for (j=0; j<MIN(i, DELETE_SIZE); j++) {
00173 char fname[40];
00174 sprintf(fname, TESTDIR "/%s", names[j]);
00175 unlink(fname) == 0 || FAILED("unlink");
00176 }
00177
00178
00179 seekdir(d, offsets[j-1]);
00180
00181
00182 return j;
00183 }
00184
00185 int main(void)
00186 {
00187 int total_deleted = 0;
00188 DIR *d;
00189 struct dirent *de;
00190
00191 cleanup();
00192 create_files();
00193
00194 d = opendir(TESTDIR);
00195
00196
00197 de = readdir(d);
00198 strcmp(de->d_name, ".") == 0 || FAILED("match .");
00199 de = readdir(d);
00200 strcmp(de->d_name, "..") == 0 || FAILED("match ..");
00201
00202 while (1) {
00203 int n = os2_delete(d);
00204 if (n == 0) break;
00205 total_deleted += n;
00206 }
00207 closedir(d);
00208
00209 printf("Deleted %d files of %d\n", total_deleted, NUM_FILES);
00210
00211 rmdir(TESTDIR) == 0 || FAILED("rmdir");
00212
00213 return 0;
00214 }