execute

One-time execution(3)						   globus common					     One-time execution(3)

NAME

       One-time execution -

   Data Structures
       union globus_thread_once_t
	   Thread once structure.

   Macros
       #define GLOBUS_THREAD_ONCE_INIT	 { .none = 0 }

   Functions
       int globus_thread_once (globus_thread_once_t *once, void(*init_routine)(void))

Detailed Description
       The globus_thread_once_t provides a way for applications and libraries to execute some code exactly one time, independent of the number of
       threads which attempt to execute it. To use this, statically initialize a globus_thread_once_t control with the value
       GLOBUS_THREAD_ONCE_INIT, and pass a pointer to a function to execute once, along with the control, to globus_thread_once().

Macro Definition Documentation
   #define GLOBUS_THREAD_ONCE_INIT   { .none = 0 }
       Thread once initializer value.

Function Documentation
   int globus_thread_once (globus_thread_once_t *once, void(*)(void)init_routine)
       Execute a function one time. .PP
       The globus_thread_once() function will execute the function pointed to
       by its @a init_routine parameter one time for each unique
       globus_thread_once_t object passed to it, independent of the number
       of threads calling it. The @a once value must be a static value
       initialized to GLOBUS_THREAD_ONCE_INIT.

       Parameters:
	   once A pointer to the value used to govern whether the function passed via the init_routine parameter has executed.
	   init_routine Function to execute one time. It is called with no parameters.

       Returns:
	   On success, globus_thread_once() guarantees that the function pointed to by init_routine has run, and that subsequent calls to
	   globus_thread_once() with the same value of once will not execute that function, and returns GLOBUS_SUCCESS. If an error occurs,
	   globus_thread_once() returns an implementation-specific non-zero error value.

Author
       Generated automatically by Doxygen for globus common from the source code.

Version 14.7							  Tue Nov 27 2012					     One-time execution(3)