/*
* This procedure restores the last state of the lists (lwps, processes,
* users and project) from the file defined by 'file'.
* param file - the file name to be used
* return 0, or -1 on error and store the error message in
* the global buffer 'errmsg'.
*/
int
list_restore(char *file)
{
int storefd;
int listt, elemn, listn;
int64_t timestamp;
time_t tv;
int version;
int ret = -1;
if ((storefd = open(file, O_RDONLY)) == -1)
return (ret);
log_msg("reading persistence file: %s\n", file);
/*
* the next do {..} while (false); statement is a replacement
* of goto;
*/
do {
if (open_prot(storefd, "r") == -1)
break;
if (skip_line() == -1)
break;
if ((version = r_value(LTDB_VERSION_KEY)) == -1)
break;
if (version != LTDB_VERSION) {
(void) fprintf(stderr,
"wrong version %d of db file %s\n",
version, file);
break;
}
if ((timestamp = r_value(LTDB_TIMESTAMP)) == -1)
break;
/* check the file decay time is expired */
(void) time(&tv);
if ((tv - timestamp) > LTDB_DECAYTIME)
break;
if ((listn = r_lshead()) == -1)
break;
while (listn-- > 0) {
if ((elemn = r_lhead(&listt)) == -1)
break;
if (list_read(listt, elemn) != 0) {
break;
}
}
ret = 0;
} while (ret);
if (ret == 0) {
struct stat stat_buf;
(void) fstat(storefd, &stat_buf);
log_msg("read: %ld bytes\n", stat_buf.st_size);
}
/* close_prot(); */
(void) close(storefd);
(void) unlink(file);
return (ret);
}
int main() {
/*
Creates a vector<Order> from user input, writes to a file, creates another vector from that file, sorts by name, and writes another file
Creates a list<Order> from user input, writes to a third file, creates another list from the second file, sorts by address, and writes to fourth file
Creates another vector<Order> from the fourth file, merges the two vectors, then writes to a fifth file
*/
cout << "Making Vector" << endl;
vect_write(make_vector(10), "file1.txt");
vector<Order> v1 = vect_read("file1.txt");
sort(v1.begin(), v1.end(), cmp_name);
vect_write(v1, "file2.txt");
cout << "Making List" << endl;
list_write(make_list(10), "file3.txt");
list<Order> l = list_read("file3.txt");
l.sort(cmp_add);
list_write(l, "file4.txt");
vector<Order> v2 = vect_read("file4.txt");
sort(v2.begin(), v2.end(), cmp_name);
vector<Order> v3(20);
merge(v1.begin(), v1.end(), v2.begin(), v2.end(), v3.begin(), cmp_name);
vect_write(v3, "file5.txt");
}
void select_method (char **argv) {
int x = 1;
if (x==1)
matrix_read(argv[3], atoi(argv[2]));
else if(!x)
list_read(argv[3]);
else
exit(1);
}
int ipv4_black_list_read(const char *file_name)
{
int rv;
FUN("ipv4_black_list_read");
rv = list_read(file_name,
&black_list, &black_list_items, &black_list_alloc);
return rv;
}
