1 /* -*- Mode: C; tab-width: 4; c-basic-offset: 4; indent-tabs-mode: nil -*- */
2 /*
3 * Copyright 2014-2020 Couchbase, Inc.
4 *
5 * Licensed under the Apache License, Version 2.0 (the "License");
6 * you may not use this file except in compliance with the License.
7 * You may obtain a copy of the License at
8 *
9 * http://www.apache.org/licenses/LICENSE-2.0
10 *
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
16 */
17
18 #include <libcouchbase/couchbase.h>
19 #include <libcouchbase/pktfwd.h>
20 #include "mc/mcreq.h"
21 #include "mc/forward.h"
22 #include "internal.h"
23 #include "rdb/rope.h"
24
25 LIBCOUCHBASE_API
lcb_pktfwd3(lcb_INSTANCE *instance, const void *cookie, const lcb_CMDPKTFWD *cmd)26 lcb_STATUS lcb_pktfwd3(lcb_INSTANCE *instance, const void *cookie, const lcb_CMDPKTFWD *cmd)
27 {
28 int fwdopts = 0;
29 mc_PIPELINE *pl;
30 mc_PACKET *packet;
31 nb_IOV *iov, iov_s;
32 unsigned niov;
33 mc_IOVINFO ioi = {{0}};
34 lcb_STATUS err;
35
36 if (cmd->nomap) {
37 fwdopts |= MC_FWD_OPT_NOMAP;
38 if (cmd->server_index >= LCBT_NSERVERS(instance)) {
39 return LCB_ERR_NO_MATCHING_SERVER;
40 } else {
41 pl = (mc_PIPELINE *)LCBT_GET_SERVER(instance, cmd->server_index);
42 }
43 }
44
45 if (cmd->vb.vtype != LCB_KV_IOV) {
46 iov_s.iov_base = (void *)cmd->vb.u_buf.contig.bytes;
47 iov_s.iov_len = cmd->vb.u_buf.contig.nbytes;
48 iov = &iov_s;
49 niov = 1;
50
51 if (cmd->vb.vtype == LCB_KV_COPY) {
52 fwdopts |= MC_FWD_OPT_COPY;
53 }
54 } else {
55 iov = (nb_IOV *)cmd->vb.u_buf.multi.iov;
56 niov = cmd->vb.u_buf.multi.niov;
57 ioi.total = cmd->vb.u_buf.multi.total_length;
58 }
59 mc_iovinfo_init(&ioi, iov, niov);
60
61 err = mc_forward_packet(&instance->cmdq, &ioi, &packet, &pl, fwdopts);
62 if (err != LCB_SUCCESS) {
63 return err;
64 }
65
66 /* set the cookie */
67 packet->u_rdata.reqdata.cookie = cookie;
68 packet->u_rdata.reqdata.start = gethrtime();
69 packet->u_rdata.reqdata.deadline =
70 packet->u_rdata.reqdata.start + LCB_US2NS(LCBT_SETTING(instance, operation_timeout));
71 return err;
72 }
73
74 LIBCOUCHBASE_API
lcb_backbuf_ref(lcb_BACKBUF buf)75 void lcb_backbuf_ref(lcb_BACKBUF buf)
76 {
77 rdb_seg_ref(buf);
78 }
79
80 LIBCOUCHBASE_API
lcb_backbuf_unref(lcb_BACKBUF buf)81 void lcb_backbuf_unref(lcb_BACKBUF buf)
82 {
83 rdb_seg_unref(buf);
84 }
85