It seems like the browser you are using has JavaScript disabled. As a result, the site will not function properly. We really want you to enable it so you may experience our site as we intended it. If you have no idea what we are talking about or if you need help, visit http://www.enable-javascript.com ×

Would you like to tell us how we are doing?

You bet No thanks

waitfor()

Wait until a path exists

Synopsis:

#include <libgen.h>

int waitfor( const char *path,
             int delay_ms,
             int poll_ms );

Since:

BlackBerry 10.0.0

Arguments:

path: The path you want to wait for.
delay_ms: The maximum time, in milliseconds, that you want to wait for.
poll_ms: The number of millseconds to delay between checks.

Library:

libc

Use the -l c option to qcc to link against this library. This library is usually included automatically.

Description:

The waitfor() function waits for the given path to exist, up to a maximum time of delay_ms milliseconds, checking every poll_ms milliseconds. If you're waiting for a mountpoint, polling isn't necessary; you can specify 0 for poll_ms in this case.

Returns:

0: The path exists.
-1: An error occurred ( errno is set).

Classification:

Safety:
Cancellation point	No
Interrupt handler	No
Signal handler	No
Thread	Yes

Related links

stat(), stat64()

on (Utilities Reference)

waitfor (Utilities Reference)

Last modified: 2014-06-24

Got questions about leaving a comment? Get answers from our Disqus FAQ.

comments powered by Disqus

1. Choose your focus

This is the focus controller. Use this controller to choose your primary development approach (Cascades or Core).

By selecting a focus, you get to decide what content should be front and center on the site.
2. Download the tools

Before you start developing, you'll need to visit the Downloads tab. Here you'll find downloads for the BlackBerry 10 Native SDK, BlackBerry 10 Device Simulator, and some other useful tools.
3. Try the sample apps

Now featuring a filter control, the Sample apps tab allows you to search for samples by name or by feature.

Select either the Core or Cascades check boxes to display the samples relevant to your focus.
4. Educate yourself

The Documentation tab contains tons of examples, tutorials, and best practices to guide you along the path towards building an awesome app.

The documentation for your preferred focus always appears at the top of the left-hand navigation, but you can still access the rest of the documentation at the bottom.
5. Start developing

The Reference tab is where you'll find essential details about how to use our APIs.

You can use the left-hand navigation to choose how you would like to browse the reference: by module, by topic, or alphabetically. If you have an idea of what you are looking for, start typing it in the Filter box.