| | varnish-cache/bin/varnishd/cache/cache_req.c |
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/*- |
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* Copyright (c) 2006 Verdens Gang AS |
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* Copyright (c) 2006-2011 Varnish Software AS |
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* All rights reserved. |
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* |
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* Author: Poul-Henning Kamp <phk@phk.freebsd.dk> |
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* |
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* SPDX-License-Identifier: BSD-2-Clause |
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* |
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* Redistribution and use in source and binary forms, with or without |
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* modification, are permitted provided that the following conditions |
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* are met: |
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* 1. Redistributions of source code must retain the above copyright |
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* notice, this list of conditions and the following disclaimer. |
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* 2. Redistributions in binary form must reproduce the above copyright |
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* notice, this list of conditions and the following disclaimer in the |
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* documentation and/or other materials provided with the distribution. |
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* |
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND |
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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* ARE DISCLAIMED. IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE |
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
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* SUCH DAMAGE. |
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* |
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* Request management |
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* |
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*/ |
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|
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#include "config.h" |
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|
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122251 |
#include <stdio.h> |
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122251 |
#include <stdlib.h> |
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122251 |
|
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122251 |
#include "cache_varnishd.h" |
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#include "cache_filter.h" |
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#include "cache_pool.h" |
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#include "cache_transport.h" |
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|
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#include "common/heritage.h" |
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#include "vtim.h" |
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|
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void |
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218959 |
Req_AcctLogCharge(struct VSC_main_wrk *ds, struct req *req) |
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{ |
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struct acct_req *a; |
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|
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218959 |
AN(ds); |
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218959 |
CHECK_OBJ_NOTNULL(req, REQ_MAGIC); |
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|
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218959 |
a = &req->acct; |
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|
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218959 |
if (!IS_NO_VXID(req->vsl->wid) && !req->res_pipe) { |
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318086 |
VSLb(req->vsl, SLT_ReqAcct, "%ju %ju %ju %ju %ju %ju", |
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159043 |
(uintmax_t)a->req_hdrbytes, |
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159043 |
(uintmax_t)a->req_bodybytes, |
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159043 |
(uintmax_t)(a->req_hdrbytes + a->req_bodybytes), |
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159043 |
(uintmax_t)a->resp_hdrbytes, |
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159043 |
(uintmax_t)a->resp_bodybytes, |
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159043 |
(uintmax_t)(a->resp_hdrbytes + a->resp_bodybytes)); |
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159043 |
} |
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|
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218959 |
if (IS_TOPREQ(req)) { |
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#define ACCT(foo) ds->s_##foo += a->foo; |
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#include "tbl/acct_fields_req.h" |
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} |
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218959 |
memset(a, 0, sizeof *a); |
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218959 |
} |
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|
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void |
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46721 |
Req_LogHit(struct worker *wrk, struct req *req, struct objcore *oc, |
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intmax_t fetch_progress) |
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{ |
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const char *clen, *sep; |
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|
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46721 |
CHECK_OBJ_NOTNULL(wrk, WORKER_MAGIC); |
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46721 |
CHECK_OBJ_NOTNULL(req, REQ_MAGIC); |
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46721 |
CHECK_OBJ_NOTNULL(oc, OBJCORE_MAGIC); |
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|
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46721 |
if (fetch_progress >= 0) { |
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4171 |
clen = HTTP_GetHdrPack(wrk, oc, H_Content_Length); |
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4171 |
if (clen == NULL) |
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384 |
clen = sep = ""; |
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else |
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3787 |
sep = " "; |
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8342 |
VSLb(req->vsl, SLT_Hit, "%ju %.6f %.6f %.6f %jd%s%s", |
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4171 |
VXID(ObjGetXID(wrk, oc)), EXP_Dttl(req, oc), |
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4171 |
oc->grace, oc->keep, |
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4171 |
fetch_progress, sep, clen); |
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4171 |
} else { |
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85100 |
VSLb(req->vsl, SLT_Hit, "%ju %.6f %.6f %.6f", |
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42550 |
VXID(ObjGetXID(wrk, oc)), EXP_Dttl(req, oc), |
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42550 |
oc->grace, oc->keep); |
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} |
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46721 |
} |
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|
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const char * |
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154265 |
Req_LogStart(const struct worker *wrk, struct req *req) |
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{ |
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const char *ci, *cp, *endpname; |
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|
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154265 |
CHECK_OBJ_NOTNULL(wrk, WORKER_MAGIC); |
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154265 |
CHECK_OBJ_NOTNULL(req, REQ_MAGIC); |
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154265 |
CHECK_OBJ_NOTNULL(req->sp, SESS_MAGIC); |
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|
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154265 |
ci = SES_Get_String_Attr(req->sp, SA_CLIENT_IP); |
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154265 |
cp = SES_Get_String_Attr(req->sp, SA_CLIENT_PORT); |
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154265 |
CHECK_OBJ_NOTNULL(req->sp->listen_sock, LISTEN_SOCK_MAGIC); |
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154265 |
endpname = req->sp->listen_sock->name; |
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154265 |
AN(endpname); |
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154265 |
VSLb(req->vsl, SLT_ReqStart, "%s %s %s", ci, cp, endpname); |
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|
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154265 |
return (ci); |
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} |
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|
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/*-------------------------------------------------------------------- |
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* Alloc/Free a request |
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*/ |
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|
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struct req * |
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122626 |
Req_New(struct sess *sp, const struct req *preq) |
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{ |
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struct pool *pp; |
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struct req *req; |
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uint16_t nhttp; |
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unsigned sz, hl; |
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char *p, *e; |
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|
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122626 |
CHECK_OBJ_NOTNULL(sp, SESS_MAGIC); |
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122626 |
pp = sp->pool; |
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122626 |
CHECK_OBJ_NOTNULL(pp, POOL_MAGIC); |
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122626 |
CHECK_OBJ_ORNULL(preq, REQ_MAGIC); |
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|
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122626 |
req = MPL_Get(pp->mpl_req, &sz); |
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122626 |
AN(req); |
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122626 |
req->magic = REQ_MAGIC; |
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122626 |
req->sp = sp; |
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|
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122626 |
e = (char*)req + sz; |
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122626 |
p = (char*)(req + 1); |
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122626 |
p = (void*)PRNDUP(p); |
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122626 |
assert(p < e); |
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|
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122626 |
nhttp = (uint16_t)cache_param->http_max_hdr; |
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122626 |
hl = HTTP_estimate(nhttp); |
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|
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122626 |
req->http = HTTP_create(p, nhttp, hl); |
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122626 |
p += hl; |
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122626 |
p = (void*)PRNDUP(p); |
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122626 |
assert(p < e); |
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|
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122626 |
req->http0 = HTTP_create(p, nhttp, hl); |
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122626 |
p += hl; |
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122626 |
p = (void*)PRNDUP(p); |
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122626 |
assert(p < e); |
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|
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122626 |
req->resp = HTTP_create(p, nhttp, hl); |
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122626 |
p += hl; |
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122626 |
p = (void*)PRNDUP(p); |
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122626 |
assert(p < e); |
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|
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122626 |
sz = cache_param->vsl_buffer; |
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122626 |
VSL_Setup(req->vsl, p, sz); |
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122626 |
p += sz; |
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122626 |
p = (void*)PRNDUP(p); |
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|
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122626 |
req->vfc = (void*)p; |
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122626 |
INIT_OBJ(req->vfc, VFP_CTX_MAGIC); |
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122626 |
p = (void*)PRNDUP(p + sizeof(*req->vfc)); |
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|
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122626 |
req->vdc = (void*)p; |
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122626 |
ZERO_OBJ(req->vdc, sizeof *req->vdc); |
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122626 |
p = (void*)PRNDUP(p + sizeof(*req->vdc)); |
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|
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122626 |
req->htc = (void*)p; |
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122626 |
INIT_OBJ(req->htc, HTTP_CONN_MAGIC); |
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122626 |
req->htc->doclose = SC_NULL; |
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122626 |
p = (void*)PRNDUP(p + sizeof(*req->htc)); |
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|
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122626 |
if (UNLIKELY(preq != NULL)) |
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14643 |
req->top = preq->top; |
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else { |
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107983 |
req->top = (void*)p; |
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107983 |
INIT_OBJ(req->top, REQTOP_MAGIC); |
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107983 |
req->top->topreq = req; |
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107983 |
p = (void*)PRNDUP(p + sizeof(*req->top)); |
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} |
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|
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122626 |
assert(p < e); |
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|
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122626 |
WS_Init(req->ws, "req", p, e - p); |
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|
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122626 |
req->t_first = NAN; |
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122626 |
req->t_prev = NAN; |
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122626 |
req->t_req = NAN; |
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122626 |
req->req_step = R_STP_TRANSPORT; |
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122626 |
req->doclose = SC_NULL; |
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122626 |
req->max_restarts = cache_param->max_restarts; |
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|
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122626 |
return (req); |
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} |
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|
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void |
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122251 |
Req_Release(struct req *req) |
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{ |
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struct sess *sp; |
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struct pool *pp; |
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|
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122251 |
CHECK_OBJ_NOTNULL(req, REQ_MAGIC); |
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|
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/* Make sure the request counters have all been zeroed */ |
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#define ACCT(foo) \ |
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AZ(req->acct.foo); |
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#include "tbl/acct_fields_req.h" |
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|
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122251 |
AZ(req->vcl); |
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122251 |
if (!IS_NO_VXID(req->vsl->wid)) |
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80 |
VSL_End(req->vsl); |
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#ifdef ENABLE_WORKSPACE_EMULATOR |
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WS_Rollback(req->ws, 0); |
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#endif |
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122251 |
TAKE_OBJ_NOTNULL(sp, &req->sp, SESS_MAGIC); |
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pp = sp->pool; |
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122251 |
CHECK_OBJ_NOTNULL(pp, POOL_MAGIC); |
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122251 |
CHECK_OBJ_NOTNULL(req, REQ_MAGIC); |
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MPL_AssertSane(req); |
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VSL_Flush(req->vsl, 0); |
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MPL_Free(pp->mpl_req, req); |
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} |
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|
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/*---------------------------------------------------------------------- |
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* TODO: |
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* - check for code duplication with cnt_recv_prep |
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* - re-check if complete |
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* - XXX should PRIV_TOP use vcl0? |
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* - XXX PRIV_TOP does not get rolled back, should it for !IS_TOPREQ ? |
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*/ |
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|
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void |
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7556 |
Req_Rollback(VRT_CTX) |
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{ |
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struct req *req; |
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|
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7556 |
CHECK_OBJ_NOTNULL(ctx, VRT_CTX_MAGIC); |
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7556 |
req = ctx->req; |
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7556 |
CHECK_OBJ_NOTNULL(req, REQ_MAGIC); |
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|
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7556 |
if (IS_TOPREQ(req)) |
| 253 |
7435 |
VCL_TaskLeave(ctx, req->top->privs); |
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7556 |
VCL_TaskLeave(ctx, req->privs); |
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7556 |
VCL_TaskEnter(req->privs); |
| 256 |
7556 |
if (IS_TOPREQ(req)) |
| 257 |
7429 |
VCL_TaskEnter(req->top->privs); |
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7556 |
HTTP_Clone(req->http, req->http0); |
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7556 |
req->vdp_filter_list = NULL; |
| 260 |
7556 |
req->vfp_filter_list = NULL; |
| 261 |
7556 |
req->vcf = NULL; |
| 262 |
7556 |
if (WS_Overflowed(req->ws)) |
| 263 |
400 |
req->wrk->stats->ws_client_overflow++; |
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7556 |
AN(req->ws_req); |
| 265 |
7556 |
WS_Rollback(req->ws, req->ws_req); |
| 266 |
7556 |
} |
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|
| 268 |
|
/*---------------------------------------------------------------------- |
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* TODO: remove code duplication with cnt_recv_prep |
| 270 |
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*/ |
| 271 |
|
|
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void |
| 273 |
166120 |
Req_Cleanup(struct sess *sp, struct worker *wrk, struct req *req) |
| 274 |
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{ |
| 275 |
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|
| 276 |
166120 |
CHECK_OBJ_NOTNULL(sp, SESS_MAGIC); |
| 277 |
166120 |
CHECK_OBJ_NOTNULL(wrk, WORKER_MAGIC); |
| 278 |
166120 |
CHECK_OBJ_NOTNULL(req, REQ_MAGIC); |
| 279 |
166120 |
assert(sp == req->sp); |
| 280 |
166120 |
if (IS_TOPREQ(req)) |
| 281 |
151472 |
AZ(req->top->vcl0); |
| 282 |
|
|
| 283 |
166120 |
AZ(req->director_hint); |
| 284 |
166120 |
req->restarts = 0; |
| 285 |
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|
| 286 |
166120 |
if (req->vcl != NULL) |
| 287 |
135713 |
VCL_Recache(wrk, &req->vcl); |
| 288 |
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|
| 289 |
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/* Charge and log byte counters */ |
| 290 |
166120 |
if (!IS_NO_VXID(req->vsl->wid)) { |
| 291 |
159918 |
Req_AcctLogCharge(wrk->stats, req); |
| 292 |
159918 |
if (!IS_SAME_VXID(req->vsl->wid, sp->vxid)) |
| 293 |
153806 |
VSL_End(req->vsl); |
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else |
| 295 |
6112 |
req->vsl->wid = NO_VXID; /* ending an h2 stream 0 */ |
| 296 |
159918 |
} |
| 297 |
|
|
| 298 |
166120 |
if (!isnan(req->t_prev) && req->t_prev > 0. && req->t_prev > sp->t_idle) |
| 299 |
150574 |
sp->t_idle = req->t_prev; |
| 300 |
|
else |
| 301 |
15546 |
sp->t_idle = W_TIM_real(wrk); |
| 302 |
|
|
| 303 |
166120 |
req->t_first = NAN; |
| 304 |
166120 |
req->t_prev = NAN; |
| 305 |
166120 |
req->t_req = NAN; |
| 306 |
166120 |
req->req_body_status = NULL; |
| 307 |
|
|
| 308 |
166120 |
req->hash_always_miss = 0; |
| 309 |
166120 |
req->hash_ignore_busy = 0; |
| 310 |
166120 |
req->hash_ignore_vary = 0; |
| 311 |
166120 |
req->esi_level = 0; |
| 312 |
166120 |
req->is_hit = 0; |
| 313 |
166120 |
req->req_step = R_STP_TRANSPORT; |
| 314 |
166120 |
req->vcf = NULL; |
| 315 |
166120 |
req->doclose = SC_NULL; |
| 316 |
166120 |
req->htc->doclose = SC_NULL; |
| 317 |
166120 |
req->htc->body_status = NULL; |
| 318 |
|
|
| 319 |
166120 |
if (WS_Overflowed(req->ws)) |
| 320 |
6680 |
wrk->stats->ws_client_overflow++; |
| 321 |
|
|
| 322 |
166120 |
wrk->seen_methods = 0; |
| 323 |
|
|
| 324 |
166120 |
VDP_Fini(req->vdc); |
| 325 |
166120 |
} |
| 326 |
|
|
| 327 |
|
/*---------------------------------------------------------------------- |
| 328 |
|
*/ |
| 329 |
|
|
| 330 |
|
void v_matchproto_(vtr_req_fail_f) |
| 331 |
1236 |
Req_Fail(struct req *req, stream_close_t reason) |
| 332 |
|
{ |
| 333 |
1236 |
CHECK_OBJ_NOTNULL(req, REQ_MAGIC); |
| 334 |
|
|
| 335 |
1236 |
AN(req->transport->req_fail); |
| 336 |
1236 |
req->transport->req_fail(req, reason); |
| 337 |
1236 |
} |