forked from nats-io/nats-server
/
const.go
131 lines (97 loc) · 3.94 KB
/
const.go
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
// Copyright 2012-2018 The NATS Authors
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package server
import (
"time"
)
// Command is a signal used to control a running gnatsd process.
type Command string
// Valid Command values.
const (
CommandStop = Command("stop")
CommandQuit = Command("quit")
CommandReopen = Command("reopen")
CommandReload = Command("reload")
// private for now
commandLDMode = Command("ldm")
)
var (
// gitCommit injected at build
gitCommit string
)
const (
// VERSION is the current version for the server.
VERSION = "1.4.1"
// PROTO is the currently supported protocol.
// 0 was the original
// 1 maintains proto 0, adds echo abilities for CONNECT from the client. Clients
// should not send echo unless proto in INFO is >= 1.
PROTO = 1
// DEFAULT_PORT is the default port for client connections.
DEFAULT_PORT = 4222
// RANDOM_PORT is the value for port that, when supplied, will cause the
// server to listen on a randomly-chosen available port. The resolved port
// is available via the Addr() method.
RANDOM_PORT = -1
// DEFAULT_HOST defaults to all interfaces.
DEFAULT_HOST = "0.0.0.0"
// MAX_CONTROL_LINE_SIZE is the maximum allowed protocol control line size.
// 4k should be plenty since payloads sans connect/info string are separate.
MAX_CONTROL_LINE_SIZE = 4096
// MAX_PAYLOAD_SIZE is the maximum allowed payload size. Should be using
// something different if > 1MB payloads are needed.
MAX_PAYLOAD_SIZE = (1024 * 1024)
// MAX_PENDING_SIZE is the maximum outbound pending bytes per client.
MAX_PENDING_SIZE = (64 * 1024 * 1024)
// DEFAULT_MAX_CONNECTIONS is the default maximum connections allowed.
DEFAULT_MAX_CONNECTIONS = (64 * 1024)
// TLS_TIMEOUT is the TLS wait time.
TLS_TIMEOUT = 500 * time.Millisecond
// AUTH_TIMEOUT is the authorization wait time.
AUTH_TIMEOUT = 2 * TLS_TIMEOUT
// DEFAULT_PING_INTERVAL is how often pings are sent to clients and routes.
DEFAULT_PING_INTERVAL = 2 * time.Minute
// DEFAULT_PING_MAX_OUT is maximum allowed pings outstanding before disconnect.
DEFAULT_PING_MAX_OUT = 2
// CR_LF string
CR_LF = "\r\n"
// LEN_CR_LF hold onto the computed size.
LEN_CR_LF = len(CR_LF)
// DEFAULT_FLUSH_DEADLINE is the write/flush deadlines.
DEFAULT_FLUSH_DEADLINE = 2 * time.Second
// DEFAULT_HTTP_PORT is the default monitoring port.
DEFAULT_HTTP_PORT = 8222
// ACCEPT_MIN_SLEEP is the minimum acceptable sleep times on temporary errors.
ACCEPT_MIN_SLEEP = 10 * time.Millisecond
// ACCEPT_MAX_SLEEP is the maximum acceptable sleep times on temporary errors
ACCEPT_MAX_SLEEP = 1 * time.Second
// DEFAULT_ROUTE_CONNECT Route solicitation intervals.
DEFAULT_ROUTE_CONNECT = 1 * time.Second
// DEFAULT_ROUTE_RECONNECT Route reconnect intervals.
DEFAULT_ROUTE_RECONNECT = 1 * time.Second
// DEFAULT_ROUTE_DIAL Route dial timeout.
DEFAULT_ROUTE_DIAL = 1 * time.Second
// PROTO_SNIPPET_SIZE is the default size of proto to print on parse errors.
PROTO_SNIPPET_SIZE = 32
// MAX_MSG_ARGS Maximum possible number of arguments from MSG proto.
MAX_MSG_ARGS = 4
// MAX_PUB_ARGS Maximum possible number of arguments from PUB proto.
MAX_PUB_ARGS = 3
// DEFAULT_REMOTE_QSUBS_SWEEPER
DEFAULT_REMOTE_QSUBS_SWEEPER = 30 * time.Second
// DEFAULT_MAX_CLOSED_CLIENTS
DEFAULT_MAX_CLOSED_CLIENTS = 10000
// DEFAULT_LAME_DUCK_DURATION is the time in which the server spreads
// the closing of clients when signaled to go in lame duck mode.
DEFAULT_LAME_DUCK_DURATION = 30 * time.Second
)