1 /* -*- mode: C++; c-basic-offset: 4; indent-tabs-mode: nil -*- */
2 // vim: ft=cpp:expandtab:ts=8:sw=4:softtabstop=4:
3 #ident "$Id$"
4 /*======
5 This file is part of PerconaFT.
6
7
8 Copyright (c) 2006, 2015, Percona and/or its affiliates. All rights reserved.
9
10 PerconaFT is free software: you can redistribute it and/or modify
11 it under the terms of the GNU General Public License, version 2,
12 as published by the Free Software Foundation.
13
14 PerconaFT is distributed in the hope that it will be useful,
15 but WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 GNU General Public License for more details.
18
19 You should have received a copy of the GNU General Public License
20 along with PerconaFT. If not, see <http://www.gnu.org/licenses/>.
21
22 ----------------------------------------
23
24 PerconaFT is free software: you can redistribute it and/or modify
25 it under the terms of the GNU Affero General Public License, version 3,
26 as published by the Free Software Foundation.
27
28 PerconaFT is distributed in the hope that it will be useful,
29 but WITHOUT ANY WARRANTY; without even the implied warranty of
30 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
31 GNU Affero General Public License for more details.
32
33 You should have received a copy of the GNU Affero General Public License
34 along with PerconaFT. If not, see <http://www.gnu.org/licenses/>.
35 ======= */
36
37 #ident "Copyright (c) 2006, 2015, Percona and/or its affiliates. All rights reserved."
38
39 #include <my_global.h>
40 #include "portability/toku_portability.h"
41
42 #include "ft/msg.h"
43 #include "ft/txn/xids.h"
44 #include "util/dbt.h"
45
ft_msg(const DBT * key,const DBT * val,enum ft_msg_type t,MSN m,XIDS x)46 ft_msg::ft_msg(const DBT *key, const DBT *val, enum ft_msg_type t, MSN m, XIDS x) :
47 _key(key ? *key : toku_empty_dbt()),
48 _val(val ? *val : toku_empty_dbt()),
49 _type(t), _msn(m), _xids(x) {
50 }
51
deserialize_from_rbuf(struct rbuf * rb,XIDS * x,bool * is_fresh)52 ft_msg ft_msg::deserialize_from_rbuf(struct rbuf *rb, XIDS *x, bool *is_fresh) {
53 const void *keyp, *valp;
54 uint32_t keylen, vallen;
55 enum ft_msg_type t = (enum ft_msg_type) rbuf_char(rb);
56 *is_fresh = rbuf_char(rb);
57 MSN m = rbuf_MSN(rb);
58 toku_xids_create_from_buffer(rb, x);
59 rbuf_bytes(rb, &keyp, &keylen);
60 rbuf_bytes(rb, &valp, &vallen);
61
62 DBT k, v;
63 return ft_msg(toku_fill_dbt(&k, keyp, keylen), toku_fill_dbt(&v, valp, vallen), t, m, *x);
64 }
65
deserialize_from_rbuf_v13(struct rbuf * rb,MSN m,XIDS * x)66 ft_msg ft_msg::deserialize_from_rbuf_v13(struct rbuf *rb, MSN m, XIDS *x) {
67 const void *keyp, *valp;
68 uint32_t keylen, vallen;
69 enum ft_msg_type t = (enum ft_msg_type) rbuf_char(rb);
70 toku_xids_create_from_buffer(rb, x);
71 rbuf_bytes(rb, &keyp, &keylen);
72 rbuf_bytes(rb, &valp, &vallen);
73
74 DBT k, v;
75 return ft_msg(toku_fill_dbt(&k, keyp, keylen), toku_fill_dbt(&v, valp, vallen), t, m, *x);
76 }
77
kdbt() const78 const DBT *ft_msg::kdbt() const {
79 return &_key;
80 }
81
vdbt() const82 const DBT *ft_msg::vdbt() const {
83 return &_val;
84 }
85
type() const86 enum ft_msg_type ft_msg::type() const {
87 return _type;
88 }
89
msn() const90 MSN ft_msg::msn() const {
91 return _msn;
92 }
93
xids() const94 XIDS ft_msg::xids() const {
95 return _xids;
96 }
97
total_size() const98 size_t ft_msg::total_size() const {
99 // Must store two 4-byte lengths
100 static const size_t key_val_overhead = 8;
101
102 // 1 byte type, 1 byte freshness, then 8 byte MSN
103 static const size_t msg_overhead = 2 + sizeof(MSN);
104
105 static const size_t total_overhead = key_val_overhead + msg_overhead;
106
107 const size_t keyval_size = _key.size + _val.size;
108 const size_t xids_size = toku_xids_get_serialize_size(xids());
109 return total_overhead + keyval_size + xids_size;
110 }
111
serialize_to_wbuf(struct wbuf * wb,bool is_fresh) const112 void ft_msg::serialize_to_wbuf(struct wbuf *wb, bool is_fresh) const {
113 wbuf_nocrc_char(wb, (unsigned char) _type);
114 wbuf_nocrc_char(wb, (unsigned char) is_fresh);
115 wbuf_MSN(wb, _msn);
116 wbuf_nocrc_xids(wb, _xids);
117 wbuf_nocrc_bytes(wb, _key.data, _key.size);
118 wbuf_nocrc_bytes(wb, _val.data, _val.size);
119 }
120
121