In C, I handle it by creating file-scoped variables. not quite global,
but not local either. If you want to remove as much risk as possible,
I'd recommend declaring a file-scoped variable in a file with only the
few functions that actually need to access the variable directly.
(then, call it a "module". haha) example:
//////////////////////////////////////////////// file starts
#include <whatever.h>
static int filescoped_special_timer_id = 0;
void
start_timer( void )
{
filescoped_special_timer_id = whatever( callback );
}
/* only call this from within this file or through the callback */
static void
callback( void )
{
/* do something */
}
void
remove_timer( void )
{
whatever_3( filescoped_special_timer_id );
}
//////////////////////////////////////////////// file ends
nothing outside of the file can access filescoped_special_timer_id
directly. It's only accessible through this "module's public interface"
which is declared in the header file. This scope is analogous to C++'s
"private" class variables, while the "module" (aka, the file) is
analogous to a C++ class.
- Anna
On Sat, Jul 08, 2006 at 09:23:54AM +0800, chao yeaj wrote:
> Hello,all
> You know ,we can register a timeout function using g_timeout_add
> and g_timeout_add return an ID
>
> And,we must mannually remove the timeout function using g_source_remove
>
>
> The problem is,in my application,there are several timeout
> functions ,in many modules
>
> In my application,when and how to remove the timeout function is
> depents on many conditions
>
> I have no idea about how to store the ID returned by
> g_timeout_add,I think using global variable is not a good idea
>
> How to mange the id? I need your advise!
> Any comments would be much appreciated , thanks in advance !
> _______________________________________________
>
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> http://mail.gnome.org/mailman/listinfo/gtk-list
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