void* read_file(void* argv){
int i, file;
char buffer[NUM_CHARS] = "";
struct arg_struct *argumentos = (struct arg_struct *)argv;
file = open_lock_file(argumentos->file_name);
lseek(file, NUM_CHARS-1 + ((argumentos->parte * (NUM_LINES-1) / NUM_THREADS) * (NUM_CHARS-1)) ,SEEK_SET);
for(i = 0; i < (NUM_LINES-1) / NUM_THREADS; i++){
read(file,buffer,NUM_CHARS-1);
if(strcmp(buffer,argumentos->comp_string)!=0){
/*Retorna -1*/
printf("Parte: %d ERROR\n",argumentos -> parte );
close(file);
errado = 1;
pthread_exit((void*) -1);
}
}
/* SUCESS*/
printf("Parte: %d SUCESS\n",argumentos -> parte);
close(file);
pthread_exit((void*)0);
}
static krb5_error_code
NDBM_open(krb5_context context, HDB *db, int flags, mode_t mode)
{
krb5_error_code ret;
struct ndbm_db *d = malloc(sizeof(*d));
if(d == NULL) {
krb5_set_error_message(context, ENOMEM, "malloc: out of memory");
return ENOMEM;
}
d->db = dbm_open((char*)db->hdb_name, flags, mode);
if(d->db == NULL){
ret = errno;
free(d);
krb5_set_error_message(context, ret, "dbm_open(%s): %s", db->hdb_name,
strerror(ret));
return ret;
}
ret = open_lock_file(context, db->hdb_name, &d->lock_fd);
if (ret) {
ret = errno;
dbm_close(d->db);
free(d);
krb5_set_error_message(context, ret, "open(lock file): %s",
strerror(ret));
return ret;
}
db->hdb_db = d;
if((flags & O_ACCMODE) == O_RDONLY)
ret = hdb_check_db_format(context, db);
else
ret = hdb_init_db(context, db);
if(ret == HDB_ERR_NOENTRY)
return 0;
if (ret) {
NDBM_close(context, db);
krb5_set_error_message(context, ret, "hdb_open: failed %s database %s",
(flags & O_ACCMODE) == O_RDONLY ?
"checking format of" : "initialize",
db->hdb_name);
}
return ret;
}
int main(int argc, char *argv[])
{
struct timeval tvstart;
int contador = 0 , i, file;
char buffer[NUM_CHARS] = "";
char first[NUM_CHARS]= "";
char filename[] = FILE_NAME;
char letters[NUM_STRINGS][NUM_CHARS] = {AAA,BBB,CCC,DDD,EEE,FFF,GGG,HHH,III,JJJ};
gettimeofday(&tvstart, NULL);
srand((tvstart.tv_sec) * 1000 + (tvstart.tv_usec) / 1000 );
file = open_lock_file(filename, argv[1]);
read(file, buffer, NUM_CHARS-1);
strcpy(first,buffer);
if((confirma_string(first, letters)) != 0){
close_unlock_file(file);
printf("Something went wrong (Confirma String)...\n\n\n");
return -1;
}
while(strcmp(buffer,first) == 0){
i = read(file, buffer,NUM_CHARS-1);
contador++;
if(i == 0){
close_unlock_file(file);
printf("Check!\n");
return !(contador == NUM_LINES);
}
}
printf("Something went wrong (Durante a Leitura)...\n");
close_unlock_file(file);
return -1;
}
static krb5_error_code
NDBM_rename(krb5_context context, HDB *db, const char *new_name)
{
int ret;
char *old_dir, *old_pag, *new_dir, *new_pag;
int old_lock_fd, new_lock_fd;
/* lock old and new databases */
ret = open_lock_file(context, db->hdb_name, &old_lock_fd);
if (ret)
return ret;
ret = hdb_lock(old_lock_fd, HDB_WLOCK);
if(ret) {
close(old_lock_fd);
return ret;
}
ret = open_lock_file(context, new_name, &new_lock_fd);
if (ret) {
hdb_unlock(old_lock_fd);
close(old_lock_fd);
return ret;
}
ret = hdb_lock(new_lock_fd, HDB_WLOCK);
if(ret) {
hdb_unlock(old_lock_fd);
close(old_lock_fd);
close(new_lock_fd);
return ret;
}
asprintf(&old_dir, "%s.dir", db->hdb_name);
asprintf(&old_pag, "%s.pag", db->hdb_name);
asprintf(&new_dir, "%s.dir", new_name);
asprintf(&new_pag, "%s.pag", new_name);
ret = rename(old_dir, new_dir) || rename(old_pag, new_pag);
if (ret) {
ret = errno;
if (ret == 0)
ret = EPERM;
krb5_set_error_message(context, ret, "rename: %s", strerror(ret));
}
free(old_dir);
free(old_pag);
free(new_dir);
free(new_pag);
hdb_unlock(new_lock_fd);
hdb_unlock(old_lock_fd);
close(new_lock_fd);
close(old_lock_fd);
if(ret)
return ret;
free(db->hdb_name);
db->hdb_name = strdup(new_name);
return 0;
}
