On Aug 1, 2008, at 4:39 PM, Chris D'Annunzio wrote:
Hello,
I am in the process of upgrading from version 0.9.7 to 0.10.0 of the
log4cxx library. I’ve successfully built the library and I am now in
the process of integrating into our product.
Some of the methods that we were previously calling have a new
required log4cxx::helpers::Pool parameter. For example, we are
calling the activateOptions() method on an log4cxx::AppenderPtr.
From what I can tell, this appears to be a memory pool interface
that log4cxx uses internally. What is the proper way to get this
Pool object? Am I supposed to create one myself during
initialization? I can’t seem to find any mention of it in the
documentation.
Any help would be greatly appreciated.
Best Regards,
Chris D’Annunzio
Pool parameters are a memory pool that is used for just that
operation. No memory or other resource from that pool is expected to
live beyond the duration of the call. You could either create a new
subpool of the global pool for each call:
log4cxx::helpers::Pool p;
appender->activateOptions(p);
or share the same pool between multiple calls:
log4cxx::helpers::Pool p;
// whatever loop you may already have in your program
for(std::vector<AppenderPtr>::interator iter = appenders.begin();
iter != appender.end(); iter++) {
(*iter)->activateOptions(p);
}
The Pool constructor calls apr_pool_create() and the destructor calls
apr_pool_destroy.
