apu_dso_mutex_lock  148 srclib/apr-util/dbd/apr_dbd.c     rv = apu_dso_mutex_lock();
apu_dso_mutex_lock   37 srclib/apr-util/include/private/apu_internal.h apr_status_t apu_dso_mutex_lock(void);
apu_dso_mutex_lock   43 srclib/apr-util/ldap/apr_ldap_stub.c     rv = apu_dso_mutex_lock();