int
save_database()
{
FILE *out;
int ret = 0;
struct db_enumerator e = init_db_enumerator(ENUM_ALL);
char *datafile_new = strconcat(datafile, ".new", NULL);
char *datafile_old = strconcat(datafile, "~", NULL);
if( (out = abook_fopen(datafile_new, "w")) == NULL ) {
ret = -1;
goto out;
}
if(!list_is_empty())
/*
* Possibly should check if write_database failed.
* Currently it returns always zero.
*/
write_database(out, e);
fclose(out);
if(access(datafile, F_OK) == 0 &&
(rename(datafile, datafile_old)) == -1)
ret = -1;
if((rename(datafile_new, datafile)) == -1)
ret = -1;
out:
free(datafile_new);
free(datafile_old);
return ret;
}
void nfosc_stop() {
int i;
if (!running) return;
running = false;
if( main_thread ) pthread_detach(main_thread);
main_thread = NULL;
lo_bundle osc_bundle = lo_bundle_new(LO_TT_IMMEDIATE);
for (i=0;i<buffer_size;i++) {
lo_message del_message = lo_message_new();
lo_message_add_int32(del_message, tag_buffer[i].device_id);
lo_message_add_int32(del_message, tag_buffer[i].symbol_id);
lo_message_add_int32(del_message, tag_buffer[i].type_id);
lo_message_add_string(del_message, tag_buffer[i].uid_str);
lo_bundle_add_message(osc_bundle, "/nfosc/del", del_message);
if (verbose) printf("del %d %d %d %s\n",tag_buffer[i].session_id,tag_buffer[i].symbol_id,tag_buffer[i].type_id,tag_buffer[i].uid_str);
}
lo_timetag frame_time;
lo_timetag_now (&frame_time);
for (int dev=0;dev<no_devices;dev++) {
if (pnd[dev]==NULL) continue;
lo_message frm_message = lo_message_new();
lo_message_add_int32(frm_message, -1);
lo_message_add_timetag(frm_message, frame_time);
lo_message_add_int32(frm_message, 0); // sensor dim
if (device_count>1) sprintf(source_string, "NFOSC:%d",dev);
lo_message_add_string(frm_message, source_string); // source name
lo_bundle_add_message(osc_bundle, "/tuio2/frm", frm_message);
lo_message sid_message = lo_message_new();
lo_bundle_add_message(osc_bundle, "/tuio2/alv", sid_message);
}
int ret = lo_send_bundle(target, osc_bundle);
if(ret == -1) {
fprintf(stderr, "an OSC error occured: %s\n", lo_address_errstr(target));
exit(1);
}
for (int dev=0;dev<no_devices;dev++) {
if (pnd[dev]!=NULL) {
printf("closing NFC reader #%d: %s\n",dev,nfc_device_get_name(pnd[dev]));
nfc_close(pnd[dev]);
}
}
nfc_exit(context);
write_database();
}
int main(int argc, char *argv[])
{
dict_t db;
char *infile;
if (argc < 2 || argc > 3) {
fprintf(stderr, "%s usage: %s <dbfile> [outputfile]\n\n", argv[0], argv[0]);
fprintf(stderr, "If [outputfile] is specified, dbfile is rewritten into outputfile after being\nparsed.\n\n");
fprintf(stderr, "<dbfile> and/or [outputfile] may be given as '-' to use stdin and stdout,\nrespectively.\n");
return 1;
}
tools_init();
if (!strcmp(argv[1], "-")) {
infile = "/dev/stdin";
} else {
infile = argv[1];
}
if (!(db = parse_database(infile))) return 2;
fprintf(stdout, "Database read okay.\n");
fflush(stdout);
if (dict_foreach(db, check_record, 0)) return 3;
if (!bad) {
fprintf(stdout, "Database checked okay.\n");
fflush(stdout);
}
if (argc == 3) {
FILE *f;
if (!strcmp(argv[2], "-")) {
f = stdout;
} else {
if (!(f = fopen(argv[2], "w+"))) {
fprintf(stderr, "fopen: %s\n", strerror(errno));
return 4;
}
}
write_database(f, db);
fclose(f);
fprintf(stdout, "Database written okay.\n");
fflush(stdout);
}
return 0;
}
void sigint_handler(int signal_number)
{
int status=0;
system(CLEAR_SC);
printf(" -->Waiting for last clients to be attended\n");
while(wait(&status)!=-1); /*Waits until there is no more childs*/
/* Save changes in the database to the disk */
printf(" -->Terminating the server correctly\n");
printf(" -->Closing the database\n");
data_person * users = (data_person *) shmat(users_shared_memory,0,0);
int * newid = (int *) shmat(newid_shared_memory,0,0);
write_database(users,newid);
shmdt(users);
shmdt(newid);
/* Deallocate Shared Memory Segment */
shmctl(users_shared_memory, IPC_RMID, 0);
shmctl(newid_shared_memory, IPC_RMID, 0);
/* Deallocate Semaphore */
binary_semaphore_deallocate(semaphore);
/* Release the lock. */
lock.l_type = F_UNLCK;
fcntl (database, F_SETLKW, &lock);
close(database);
printf(" -->Have a nice day\n");
exit(status);
}
