ngx_event_pipe_read_upstream   14 src/event/ngx_event_pipe.c static ngx_int_t ngx_event_pipe_read_upstream(ngx_event_pipe_t *p);
ngx_event_pipe_read_upstream   49 src/event/ngx_event_pipe.c         if (ngx_event_pipe_read_upstream(p) == NGX_ABORT) {