Loop - checking for lock to clear

Question

My application uses tables that are refreshed from their sources. I have a table with a field in it that if set to "locked" (by an external process or another user of the application).
I set an item (P1_LOCK_STATUS) to the results of the select statement on the column. On pages where I am accessesing data, I redirect to a page that explains that the application is "locked".
This all seems to work.
What I want to do (and my reason for this thread) is to:
1) get the page go into some sort of a loop that reads the column to determine if it has changed to "unlocked".
2) While it's detecting whether the lock has changed, I'd like to have some movement on the screen to show that it is doing something.
Something graphical might be nice...
3) When it detects that it is unlocked, I'd like it to branch to the calling page or some other page.
Yep... I'm a newbie ;-) and this may be a stupid question, but I can't think of how to do this...
-Scott

Answer 1

Just replace???
I'm writing an example code
char myArray[10] = {....}; //array populated;
char userItem = .....; //any character typed by the user
for (int i = 0; i < myArray.length; i++) {
  if (myArray[i] == userItem) {
    myArray[i] = userItem; //here occurs the replace
}I hope to help you
Junior