* QSBR read lock/unlock are guaranteed to be no-ops. Therefore, we expose them
* in the LGPL header for any code to use. However, the debug version is not
* nops and may contain sanity checks. To activate it, applications must be
* QSBR read lock/unlock are guaranteed to be no-ops. Therefore, we expose them
* in the LGPL header for any code to use. However, the debug version is not
* nops and may contain sanity checks. To activate it, applications must be