tests/os2_delete.c

ソースコードを見る。

関数
static void	cleanup (void)
static void	create_files ()
static int	os2_delete (DIR *d)
int	main (void)

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関数

static void cleanup

(

void

)

[static]

os2_delete.c の 28 行で定義されています。

{
        /* I'm a lazy bastard */
        system("rm -rf " TESTDIR);
        mkdir(TESTDIR, 0700) == 0 || FAILED("mkdir");
}

static void create_files

(

void

)

[static]

os2_delete.c の 35 行で定義されています。

参照先 sprintf().

{
        int i;
        for (i=0;i<NUM_FILES;i++) {
                char fname[40];
                sprintf(fname, TESTDIR "/test%u.txt", i);
                close(open(fname, O_CREAT|O_RDWR, 0600)) == 0 || FAILED("close");
        }
}

static int os2_delete

(

DIR *

d

)

[static]

os2_delete.c の 45 行で定義されています。

参照先 readdir()・seekdir()・sprintf()・telldir().

{
        off_t offsets[READDIR_SIZE];
        int i, j;
        struct dirent *de;
        char names[READDIR_SIZE][30];

        /* scan, remembering offsets */
        for (i=0, de=readdir(d); 
             de && i < READDIR_SIZE; 
             de=readdir(d), i++) {
                offsets[i] = telldir(d);
                strcpy(names[i], de->d_name);
        }

        if (i == 0) {
                return 0;
        }

        /* delete the first few */
        for (j=0; j<MIN(i, DELETE_SIZE); j++) {
                char fname[40];
                sprintf(fname, TESTDIR "/%s", names[j]);
                unlink(fname) == 0 || FAILED("unlink");
        }

        /* seek to just after the deletion */
        seekdir(d, offsets[j-1]);

        /* return number deleted */
        return j;
}

int main

(

void

)

os2_delete.c の 78 行で定義されています。

参照先 cleanup()・closedir()・create_files()・opendir()・os2_delete()・printf()・readdir()・total_deleted.

{
        int total_deleted = 0;
        DIR *d;
        struct dirent *de;

        cleanup();
        create_files();
        
        d = opendir(TESTDIR);

        /* skip past . and .. */
        de = readdir(d);
        strcmp(de->d_name, ".") == 0 || FAILED("match .");
        de = readdir(d);
        strcmp(de->d_name, "..") == 0 || FAILED("match ..");

        while (1) {
                int n = os2_delete(d);
                if (n == 0) break;
                total_deleted += n;
        }
        closedir(d);

        printf("Deleted %d files of %d\n", total_deleted, NUM_FILES);

        rmdir(TESTDIR) == 0 || FAILED("rmdir");

        return 0;
}

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