PR_Sleep
========
Causes the current thread to yield for a specified amount of time.
Syntax
------
.. code::
#include <prthread.h>
PRStatus PR_Sleep(PRIntervalTime ticks);
Parameter
~~~~~~~~~
:ref:`PR_Sleep` has the following parameter:
``ticks``
The number of ticks you want the thread to sleep for (see
:ref:`PRIntervalTime`).
Returns
~~~~~~~
Calling :ref:`PR_Sleep` with a parameter equivalent to
``PR_INTERVAL_NO_TIMEOUT`` is an error and results in a ``PR_FAILURE``
error.
Description
-----------
:ref:`PR_Sleep` simply waits on a condition for the amount of time
specified. If you set ticks to ``PR_INTERVAL_NO_WAIT``, the thread
yields.
If ticks is not ``PR_INTERVAL_NO_WAIT``, :ref:`PR_Sleep` uses an existing
lock, but has to create a new condition for this purpose. If you have
already created such structures, it is more efficient to use them
directly.
Calling :ref:`PR_Sleep` with the value of ticks set to
``PR_INTERVAL_NO_WAIT`` simply surrenders the processor to ready threads
of the same priority. All other values of ticks cause :ref:`PR_Sleep` to
block the calling thread for the specified interval.
Threads blocked in :ref:`PR_Sleep` are interruptible.
