02-08-2012
Amongst my reply, the only bit that matters is:
Quote:
When executed as . ./filename the script executes in the current environment and you can see the change. This is the same way your profile works.
The rest of the issues with executing the script are due to the permissions of the file or due to fact that the directory containing the script is not in $PATH. This is actually irrelevant as
. ./filename is the only sensible way to execute the script if you want the environment variable to be set in the current environment. In some modern Bourne-like Shells you may find the "source" command which has the same effect but it is not a standard command and is not valid in "ksh".
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LEARN ABOUT DEBIAN
globus_thread_once
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)