upstream_blocked   46 event/ngx_event_pipe.c         p->upstream_blocked = 0;
upstream_blocked   54 event/ngx_event_pipe.c         if (!p->read && !p->upstream_blocked) {
upstream_blocked  212 event/ngx_event_pipe.c                 p->upstream_blocked = 1;
upstream_blocked   56 event/ngx_event_pipe.h     unsigned           upstream_blocked:1;