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#include <sys/types.h>
#include <sys/stat.h>
#include <unistd.h>
#include <dirent.h>
#include <fcntl.h>
#include <limits.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "gt.h"
static void
usage(char *progname)
{
fprintf(stderr, "usage: %s node_count\n", progname);
exit(1);
}
// rm -rf
static void
delete_tree(char *rootpath)
{
int retval;
struct stat statbuf;
retval = lstat(rootpath, &statbuf);
if (retval < 0) {
return;
}
if (S_ISDIR(statbuf.st_mode)) {
DIR *dir;
struct dirent *dent;
char pathbuf[PATH_MAX];
dir = opendir(rootpath);
while ((dent = readdir(dir)) != NULL) {
if (0 == strcmp(".", dent->d_name)) {
continue;
}
if (0 == strcmp("..", dent->d_name)) {
continue;
}
snprintf(pathbuf, sizeof(pathbuf),
"%s/%s", rootpath, dent->d_name);
delete_tree(pathbuf);
}
closedir(dir);
(void)rmdir(rootpath);
} else {
(void)unlink(rootpath);
}
}
static void
create_subdir(char *dirpath)
{
int i;
mkdir(dirpath, 0775);
for (i = 0; i < SUBDIR_FILES; i++) {
char pathbuf[PATH_MAX];
int fd;
snprintf(pathbuf, sizeof(pathbuf),
"%s/WA_RC_%d", dirpath, i);
fd = open(pathbuf, O_RDWR|O_CREAT, 0664);
write(fd, pathbuf, strlen(pathbuf));
close(fd);
}
}
static void
create_tree(char *rootpath, int node_count)
{
int n;
mkdir(rootpath, 0775);
for (n = 1; n <= node_count; n++) {
char pathbuf[PATH_MAX];
int fd;
snprintf(pathbuf, sizeof(pathbuf),
"%s/%d", rootpath, n);
mkdir(pathbuf, 0775);
create_subdir(pathbuf);
}
}
int
main(int argc, char **argv)
{
char *arg_ptr;
long node_count;
if (argc != 2) {
usage(argv[0]);
}
node_count = strtol(argv[1], &arg_ptr, 10);
if (*arg_ptr != '\0') {
usage(argv[0]);
}
delete_tree(BASE_PATH);
create_tree(BASE_PATH, node_count);
exit(0);
}
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