Hi,
I don't know why you should have RWLOCK mechanism on your problem, but it is
not 'safe' to update widget in other thread except the main thread,
g_idle_add() may suitable for you. This called in the main thread and you can
safely update any widget in this function. Please note the GSourceFunc return
value, when you returning TRUE (not 0) or FALSE (0), see the documentation.
gboolean update_widget (void *data)
{
/* do widget updating based on variables */
return FALSE;
}
void* thread_func (void *data)
{
/* variable manipulation */
g_idle_add ((GSourceFunc) update_widget, NULL);
}
--- donglongc...@163.com wrote:
From: donglongchao <donglongc...@163.com>
To: gtk-app <gtk-app-devel-list@gnome.org>
Subject: Do I need to use rwlock?
Date: Thu, 11 Jun 2009 10:55:14 +0800 (CST)
Hi,all
I have two threads.The first one is in charge of change data,and the second one
is in charge of refresh the GUI based on the data changed by the first
thread.For example,the second one will make a "entry" sensitive if a bool
variable is changed to be "true" by the first thread.
And what I want to know is that do I need to use rwlock(or something like that)
when I use the same variable in both the two threads?If yes,I want to know
whether there is a better method to solve this problem?Because I need to
refresh many many widgets based on many many variables.
Will someone help me?Thanks a lot.
Wish you happy.
Dong Longchao
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