Hi there, function ngx_shmtx_lock: if (*mtx->lock == 0 && ngx_atomic_cmp_set(mtx->lock, 0, ngx_pid)) and ngx_trylock (ngx_atomic.h): (*(lock) == 0 && ngx_atomic_cmp_set(lock, 0, 1))
I think ngx_atomic_cmp_set is enough, why Nginx do extra judgement ahead of it ? _______________________________________________ nginx-devel mailing list nginx-devel@nginx.org http://mailman.nginx.org/mailman/listinfo/nginx-devel
