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
|
%%
%% %CopyrightBegin%
%%
%% Copyright Ericsson AB 1999-2022. All Rights Reserved.
%%
%% 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.
%%
%% %CopyrightEnd%
%%
%%
%% Distribution capabilities flags (corresponds with dist.h).
%%
-define(DFLAG_PUBLISHED, 16#01).
-define(DFLAG_ATOM_CACHE, 16#02).
-define(DFLAG_EXTENDED_REFERENCES, 16#04).
-define(DFLAG_DIST_MONITOR, 16#08).
-define(DFLAG_FUN_TAGS, 16#10).
-define(DFLAG_DIST_MONITOR_NAME, 16#20).
-define(DFLAG_HIDDEN_ATOM_CACHE, 16#40).
-define(DFLAG_NEW_FUN_TAGS, 16#80).
-define(DFLAG_EXTENDED_PIDS_PORTS, 16#100).
-define(DFLAG_EXPORT_PTR_TAG, 16#200).
-define(DFLAG_BIT_BINARIES, 16#400).
-define(DFLAG_NEW_FLOATS, 16#800).
-define(DFLAG_UNICODE_IO, 16#1000).
-define(DFLAG_DIST_HDR_ATOM_CACHE, 16#2000).
-define(DFLAG_SMALL_ATOM_TAGS, 16#4000).
-define(DFLAG_UTF8_ATOMS, 16#10000).
-define(DFLAG_MAP_TAG, 16#20000).
-define(DFLAG_BIG_CREATION, 16#40000).
-define(DFLAG_SEND_SENDER, 16#80000).
-define(DFLAG_BIG_SEQTRACE_LABELS, 16#100000).
%% -define(DFLAG_NO_MAGIC, 16#200000). %% Used internally only
-define(DFLAG_EXIT_PAYLOAD, 16#400000).
-define(DFLAG_FRAGMENTS, 16#00800000).
-define(DFLAG_HANDSHAKE_23, 16#01000000).
-define(DFLAG_UNLINK_ID, 16#02000000).
-define(DFLAG_MANDATORY_25_DIGEST, 16#04000000).
-define(DFLAG_RESERVED, 16#f8000000).
%% Second 32-bit flag word.
-define(DFLAG_SPAWN, (16#01 bsl 32)).
-define(DFLAG_NAME_ME, (16#02 bsl 32)).
-define(DFLAG_V4_NC, (16#04 bsl 32)).
-define(DFLAG_ALIAS, (16#08 bsl 32)).
%% The following flags are mandatory in OTP 25. OTP 25 and higher
%% will accept ?DFLAG_MANDATORY_25_DIGEST as a shorthand for all those
%% flags.
-define(MANDATORY_DFLAGS_25,
(?DFLAG_EXTENDED_REFERENCES bor
?DFLAG_FUN_TAGS bor
?DFLAG_EXTENDED_PIDS_PORTS bor
?DFLAG_NEW_FUN_TAGS bor
?DFLAG_EXPORT_PTR_TAG bor
?DFLAG_BIT_BINARIES bor
?DFLAG_NEW_FLOATS bor
?DFLAG_UTF8_ATOMS bor
?DFLAG_MAP_TAG bor
?DFLAG_BIG_CREATION bor
?DFLAG_HANDSHAKE_23)).
%% New mandatory flags in OTP 26
-define(MANDATORY_DFLAGS_26, (?DFLAG_V4_NC bor
?DFLAG_UNLINK_ID)).
%% All mandatory flags
-define(DFLAGS_MANDATORY, (?MANDATORY_DFLAGS_25 bor
?MANDATORY_DFLAGS_26)).
%% Also update dflag2str() in ../src/dist_util.erl
%% when adding flags...
-define(ERL_DIST_VER_6, 6). % OTP-23 at least
-define(ERL_DIST_VER_LOW, ?ERL_DIST_VER_6).
-define(ERL_DIST_VER_HIGH, ?ERL_DIST_VER_6).
%%%
%%% To avoid having to extend the number of distribution flags from 64
%%% to 128, a scheme for garbage collection of the flags was
%%% introduced in OTP 25.
%%%
%%% In OTP 25, ?DFLAG_MANDATORY_25_DIGEST was introduced as a synonym
%%% for the flags defined by ?MANDATORY_DFLAGS_25. OTP 25/26 will
%%% accept the old flags to support communication with 24 and earlier,
%%% as well as ?DFLAG_MANDATORY_25_DIGEST.
%%%
%%% OTP 27 will make ?DFLAG_MANDATORY_25_DIGEST mandatory, meaning that an
%%% OTP 27 node can only communicate with OTP 25 and higher.
%%%
%%% An OTP 27 node will also introduce the new flag
%%% ?DFLAG_MANDATORY_27_DIGEST:
%%%
%%% * If ?DFLAG_MANDATORY_27_DIGEST is set, it means that all bit
%%% numbers defined by ?MANDATORY_DFLAGS_25, as well as the bit
%%% number defined by ?DFLAG_MANDATORY_25_DIGEST and any other bits
%%% made mandatory in OTP 26/27, lose their previous meanings. New
%%% meanings can then be assigned to those bit numbers as
%%% needed. (This is for communication between nodes from OTP 27 and
%%% up.)
%%%
%%% * If ?DFLAG_MANDATORY_27_DIGEST is not set, then
%%% ?DFLAG_MANDATORY_25_DIGEST must be set and all bit numbers
%%% defined by ?MANDATORY_DFLAGS_25 are ignored. (This is for
%%% communication between an OTP 27 node and an OTP 25/26 node.)
%%%
|
