ngx_crypt_mutex    71 os/unix/ngx_user.c     if (ngx_mutex_trylock(ngx_crypt_mutex) != NGX_OK) {
ngx_crypt_mutex    90 os/unix/ngx_user.c         ngx_mutex_unlock(ngx_crypt_mutex);
ngx_crypt_mutex    98 os/unix/ngx_user.c     ngx_mutex_unlock(ngx_crypt_mutex);