lock
void lock() {if (valid) EnterCriticalSection(&cs);}
#define lock() k5_mutex_lock(&krb5int_error_info_support_mutex)
#define lock(f) ((rtm->rtm_rmx.rmx_locks & __CONCAT(RTV_,f)) ? 'L' : ' ')
#undef lock
osal_spinlock_t lock;
struct lock {