Hi Tanguy,
> static Mutex s_mutex;
>
> const char * getSingletonGlExtensionDisable()
> {
> ScopedLock lock(s_mutex);
>
> static const char * env = getenv("OSG_GL_EXTENSION_DISABLE");
>
> return env;
> }
This doesn't make sense, because 'getenv' is called only once, during
the initialization of the static variable 'env'. After that the
value of 'env' doesn't change, but for every call to
'getSingletonGlExtensionDisable' a lock is used.
If the value of 'OSG_GL_EXTENSION_DISABLE' shouldn't change during
runtime:
static Mutex s_mutex;
const char* getSingletonGlExtensionDisable()
{
static char* env = 0L;
if (env == 0L) {
ScopedLock lock(s_mutex);
env = getenv("OSG_GL_EXTENSION_DISABLE");
}
return env;
}
Greetings,
Daniel
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