kolibrios-fun/programs/system/shell/cmd/cmd_waitfor.c

/* waits for LASTPID or pid in param */
int cmd_waitfor(char param[]) {
	int		i, n, sel, sel_pid;
	char		*buf1k;
	unsigned	PID;
	short		STATE;

	sel = param && strlen(param) > 0;
	sel_pid = LAST_PID;
	if (sel) {
		sel_pid = atoi(param);
	}
	if (0 == sel_pid) return FALSE;

	printf(CMD_WAITFOR_FMT, sel_pid);

	buf1k = malloc(1024);
	if (NULL == buf1k)
		return FALSE;

	while(1) {
		for (i = 1;;i++) {
			n = kol_process_info(i, buf1k);
			PID = *(buf1k+30);
			STATE = *(buf1k+50);
			if (PID == sel_pid)
				if(9 == STATE)
					goto exit_normal;
				else break;
			if (i == n)
				goto exit_normal;
		}
		kol_sleep(10); // 100ms
	}

	exit_normal:
	free(buf1k);
	return TRUE;

}