static enum req_fsm_nxt cnt_deliver(struct worker *wrk, struct req *req) { struct busyobj *bo; CHECK_OBJ_NOTNULL(wrk, WORKER_MAGIC); CHECK_OBJ_NOTNULL(req, REQ_MAGIC); CHECK_OBJ_NOTNULL(req->objcore, OBJCORE_MAGIC); CHECK_OBJ_NOTNULL(req->objcore->objhead, OBJHEAD_MAGIC); AN(req->vcl); assert(req->objcore->refcnt > 0); if (req->objcore->exp_flags & OC_EF_EXP) EXP_Touch(req->objcore, req->t_prev); HTTP_Setup(req->resp, req->ws, req->vsl, SLT_RespMethod); AZ(HTTP_Decode(req->resp, ObjGetattr(req->wrk, req->objcore, OA_HEADERS, NULL))); http_ForceField(req->resp, HTTP_HDR_PROTO, "HTTP/1.1"); if (req->is_hit) http_PrintfHeader(req->resp, "X-Varnish: %u %u", VXID(req->vsl->wid), ObjGetXID(wrk, req->objcore)); else http_PrintfHeader(req->resp, "X-Varnish: %u", VXID(req->vsl->wid)); /* We base Age calculation upon the last timestamp taken during client request processing. This gives some inaccuracy, but since Age is only full second resolution that shouldn't matter. (Last request timestamp could be a Start timestamp taken before the object entered into cache leading to negative age. Truncate to zero in that case). */ http_PrintfHeader(req->resp, "Age: %.0f", fmax(0., req->t_prev - req->objcore->exp.t_origin)); http_SetHeader(req->resp, "Via: 1.1 varnish-v4"); if (cache_param->http_gzip_support && ObjCheckFlag(req->wrk, req->objcore, OF_GZIPED) && !RFC2616_Req_Gzip(req->http)) RFC2616_Weaken_Etag(req->resp); VCL_deliver_method(req->vcl, wrk, req, NULL, NULL); VSLb_ts_req(req, "Process", W_TIM_real(wrk)); /* Stop the insanity before it turns "Hotel California" on us */ if (req->restarts >= cache_param->max_restarts) wrk->handling = VCL_RET_DELIVER; if (wrk->handling != VCL_RET_DELIVER) { (void)HSH_DerefObjCore(wrk, &req->objcore); http_Teardown(req->resp); switch (wrk->handling) { case VCL_RET_RESTART: req->req_step = R_STP_RESTART; break; case VCL_RET_SYNTH: req->req_step = R_STP_SYNTH; break; default: INCOMPL(); } return (REQ_FSM_MORE); } assert(wrk->handling == VCL_RET_DELIVER); if (!(req->objcore->flags & OC_F_PASS) && req->esi_level == 0 && http_IsStatus(req->resp, 200) && req->http->conds && RFC2616_Do_Cond(req)) http_PutResponse(req->resp, "HTTP/1.1", 304, NULL); /* Grab a ref to the bo if there is one, and hand it down */ bo = HSH_RefBusy(req->objcore); if (bo != NULL) { if (req->esi_level == 0 && bo->state == BOS_FINISHED) { VBO_DerefBusyObj(wrk, &bo); } else if (!bo->do_stream) { VBO_waitstate(bo, BOS_FINISHED); VBO_DerefBusyObj(wrk, &bo); } } cnt_vdp(req, bo); if (bo != NULL) VBO_DerefBusyObj(wrk, &bo); VSLb_ts_req(req, "Resp", W_TIM_real(wrk)); if (http_HdrIs(req->resp, H_Connection, "close")) req->doclose = SC_RESP_CLOSE; if ((req->objcore->flags & OC_F_PASS) && bo != NULL) { VBO_waitstate(bo, BOS_FINISHED); ObjSlim(wrk, req->objcore); } (void)HSH_DerefObjCore(wrk, &req->objcore); http_Teardown(req->resp); return (REQ_FSM_DONE); }
static enum req_fsm_nxt cnt_deliver(struct worker *wrk, struct req *req) { struct busyobj *bo; CHECK_OBJ_NOTNULL(wrk, WORKER_MAGIC); CHECK_OBJ_NOTNULL(req, REQ_MAGIC); CHECK_OBJ_NOTNULL(req->obj, OBJECT_MAGIC); CHECK_OBJ_NOTNULL(req->obj->objcore, OBJCORE_MAGIC); CHECK_OBJ_NOTNULL(req->obj->objcore->objhead, OBJHEAD_MAGIC); CHECK_OBJ_NOTNULL(req->vcl, VCL_CONF_MAGIC); assert(WRW_IsReleased(wrk)); assert(req->obj->objcore->refcnt > 0); if (req->obj->objcore->exp_flags & OC_EF_EXP) EXP_Touch(req->obj->objcore, req->t_prev); HTTP_Setup(req->resp, req->ws, req->vsl, SLT_RespMethod); http_FilterResp(req->obj->http, req->resp, 0); http_ForceField(req->resp, HTTP_HDR_PROTO, "HTTP/1.1"); if (req->wrk->stats.cache_hit) http_PrintfHeader(req->resp, "X-Varnish: %u %u", VXID(req->vsl->wid), VXID(req->obj->vxid)); else http_PrintfHeader(req->resp, "X-Varnish: %u", VXID(req->vsl->wid)); /* We base Age calculation upon the last timestamp taken during client request processing. This gives some inaccuracy, but since Age is only full second resolution that shouldn't matter. (Last request timestamp could be a Start timestamp taken before the object entered into cache leading to negative age. Truncate to zero in that case). */ http_PrintfHeader(req->resp, "Age: %.0f", fmax(0., req->t_prev - req->obj->objcore->exp.t_origin)); http_SetHeader(req->resp, "Via: 1.1 varnish-v4"); if (cache_param->http_gzip_support && req->obj->gziped && !RFC2616_Req_Gzip(req->http)) RFC2616_Weaken_Etag(req->resp); VCL_deliver_method(req->vcl, wrk, req, NULL, req->http->ws); VSLb_ts_req(req, "Process", W_TIM_real(wrk)); /* Stop the insanity before it turns "Hotel California" on us */ if (req->restarts >= cache_param->max_restarts) wrk->handling = VCL_RET_DELIVER; if (wrk->handling != VCL_RET_DELIVER) { (void)HSH_DerefObj(&wrk->stats, &req->obj); AZ(req->obj); http_Teardown(req->resp); switch (wrk->handling) { case VCL_RET_RESTART: req->req_step = R_STP_RESTART; break; case VCL_RET_SYNTH: req->req_step = R_STP_SYNTH; break; default: INCOMPL(); } return (REQ_FSM_MORE); } assert(wrk->handling == VCL_RET_DELIVER); if (!(req->obj->objcore->flags & OC_F_PASS) && req->esi_level == 0 && http_GetStatus(req->obj->http) == 200 && req->http->conds && RFC2616_Do_Cond(req)) { http_PutResponse(req->resp, "HTTP/1.1", 304, NULL); req->wantbody = 0; } /* Grab a ref to the bo if there is one, and hand it down */ bo = HSH_RefBusy(req->obj->objcore); V1D_Deliver(req, bo); if (bo != NULL) VBO_DerefBusyObj(req->wrk, &bo); VSLb_ts_req(req, "Resp", W_TIM_real(wrk)); if (http_HdrIs(req->resp, H_Connection, "close")) req->doclose = SC_RESP_CLOSE; if (req->obj->objcore->flags & OC_F_PASS) { /* * No point in saving the body if it is hit-for-pass, * but we can't yank it until the fetching thread has * finished/abandoned also. */ while (req->obj->objcore->busyobj != NULL) (void)usleep(100000); STV_Freestore(req->obj); } assert(WRW_IsReleased(wrk)); VSLb(req->vsl, SLT_Debug, "XXX REF %d", req->obj->objcore->refcnt); (void)HSH_DerefObj(&wrk->stats, &req->obj); http_Teardown(req->resp); return (REQ_FSM_DONE); }