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-rw-r--r--lib/kernel/doc/src/pg2.xml10
-rw-r--r--lib/stdlib/doc/src/Makefile1
-rw-r--r--lib/stdlib/doc/src/pg.xml114
-rw-r--r--lib/stdlib/doc/src/ref_man.xml1
-rw-r--r--lib/stdlib/doc/src/specs.xml1
-rw-r--r--lib/stdlib/src/Makefile1
-rw-r--r--lib/stdlib/src/otp_internal.erl2
-rw-r--r--lib/stdlib/src/pg.erl187
-rw-r--r--lib/stdlib/src/stdlib.app.src1
9 files changed, 3 insertions, 315 deletions
diff --git a/lib/kernel/doc/src/pg2.xml b/lib/kernel/doc/src/pg2.xml
index 5eb63c1ef6..35cf85470a 100644
--- a/lib/kernel/doc/src/pg2.xml
+++ b/lib/kernel/doc/src/pg2.xml
@@ -34,11 +34,8 @@
<module>pg2</module>
<modulesummary>Distributed Named Process Groups</modulesummary>
<description>
- <p>This module implements process groups. The groups in this
- module differ from the groups in the module <c>pg</c> in several
- ways. In <c>pg</c>, each message is sent to all members in the
- group. In this module, each message may be sent to one, some, or
- all members.
+ <p>This module implements process groups. Each message may be sent
+ to one, some, or all members of the group.
</p>
<p>A group of processes can be accessed by a common name. For
example, if there is a group named <c>foobar</c>, there can be a
@@ -160,8 +157,7 @@
<section>
<title>See Also</title>
- <p><seealso marker="kernel_app">kernel(6)</seealso>,
- <seealso marker="stdlib:pg">pg(3)</seealso></p>
+ <p><seealso marker="kernel_app">kernel(6)</seealso></p>
</section>
</erlref>
diff --git a/lib/stdlib/doc/src/Makefile b/lib/stdlib/doc/src/Makefile
index ff77c3eea0..f5d8b2072a 100644
--- a/lib/stdlib/doc/src/Makefile
+++ b/lib/stdlib/doc/src/Makefile
@@ -76,7 +76,6 @@ XML_REF3_FILES = \
ms_transform.xml \
orddict.xml \
ordsets.xml \
- pg.xml \
pool.xml \
proc_lib.xml \
proplists.xml \
diff --git a/lib/stdlib/doc/src/pg.xml b/lib/stdlib/doc/src/pg.xml
deleted file mode 100644
index a3b69884b6..0000000000
--- a/lib/stdlib/doc/src/pg.xml
+++ /dev/null
@@ -1,114 +0,0 @@
-<?xml version="1.0" encoding="utf-8" ?>
-<!DOCTYPE erlref SYSTEM "erlref.dtd">
-
-<erlref>
- <header>
- <copyright>
- <year>1996</year>
- <year>2014</year>
- <holder>Ericsson AB, All Rights Reserved</holder>
- </copyright>
- <legalnotice>
- The contents of this file are subject to the Erlang Public License,
- Version 1.1, (the "License"); you may not use this file except in
- compliance with the License. You should have received a copy of the
- Erlang Public License along with this software. If not, it can be
- retrieved online at http://www.erlang.org/.
-
- Software distributed under the License is distributed on an "AS IS"
- basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
- the License for the specific language governing rights and limitations
- under the License.
-
- The Initial Developer of the Original Code is Ericsson AB.
- </legalnotice>
-
- <title>pg</title>
- <prepared></prepared>
- <docno></docno>
- <date></date>
- <rev></rev>
- </header>
- <module>pg</module>
- <modulesummary>Distributed, Named Process Groups</modulesummary>
- <description>
- <warning>
- <p>This module is deprecated and will be removed in Erlang/OTP 18.</p>
- </warning>
- <p>This (experimental) module implements process groups. A process
- group is a group of processes that can be accessed by a common
- name. For example, a group named <c>foobar</c> can include a set
- of processes as members of this group and they can be located on
- different nodes.</p>
- <p>When messages are sent to the named group, all members of
- the group receive the message. The messages are serialized. If
- the process <c>P1</c> sends the message <c>M1</c> to the group,
- and process <c>P2</c> simultaneously sends message <c>M2</c>, then
- all members of the group receive the two messages in the same
- order. If members of a group terminate, they are automatically
- removed from the group.</p>
- <p>This module is not complete. The module is inspired by the ISIS
- system and the causal order protocol of the ISIS system should
- also be implemented. At the moment, all messages are serialized
- by sending them through a group master process.</p>
- </description>
- <funcs>
- <func>
- <name name="create" arity="1"/>
- <fsummary>Create an empty group</fsummary>
- <desc>
- <p>Creates an empty group named <c><anno>PgName</anno></c> on the current
- node.</p>
- </desc>
- </func>
- <func>
- <name name="create" arity="2"/>
- <fsummary>Create an empty group on another node</fsummary>
- <desc>
- <p>Creates an empty group named <c><anno>PgName</anno></c> on the node
- <c><anno>Node</anno></c>.</p>
- </desc>
- </func>
- <func>
- <name name="join" arity="2"/>
- <fsummary>Join a pid to a process group</fsummary>
- <desc>
- <p>Joins the pid <c><anno>Pid</anno></c> to the process group
- <c><anno>PgName</anno></c>.
- Returns a list of all old members of the group.</p>
- </desc>
- </func>
- <func>
- <name name="send" arity="2"/>
- <fsummary>Send a message to all members of a process group</fsummary>
- <desc>
- <p>Sends the tuple <c>{pg_message, From, PgName, Msg}</c> to
- all members of the process group <c><anno>PgName</anno></c>.</p>
- <p>Failure: <c>{badarg, {<anno>PgName</anno>, <anno>Msg</anno>}}</c>
- if <c><anno>PgName</anno></c> is
- not a process group (a globally registered name).</p>
- </desc>
- </func>
- <func>
- <name name="esend" arity="2"/>
- <fsummary>Send a message to all members of a process group, except ourselves</fsummary>
- <desc>
- <p>Sends the tuple <c>{pg_message, From, PgName, Msg}</c> to
- all members of the process group <c><anno>PgName</anno></c>, except
- ourselves.</p>
- <p>Failure: <c>{badarg, {<anno>PgName</anno>, <anno>Msg</anno>}}</c>
- if <c><anno>PgName</anno></c> is
- not a process group (a globally registered name).</p>
- </desc>
- </func>
- <func>
- <name name="members" arity="1"/>
- <fsummary>Return a list of all members of a process group</fsummary>
- <desc>
- <p>Returns a list of all members of the process group
- <c>PgName</c>.</p>
- </desc>
- </func>
- </funcs>
-</erlref>
-
diff --git a/lib/stdlib/doc/src/ref_man.xml b/lib/stdlib/doc/src/ref_man.xml
index 6c35578bdf..ea4009dc3e 100644
--- a/lib/stdlib/doc/src/ref_man.xml
+++ b/lib/stdlib/doc/src/ref_man.xml
@@ -73,7 +73,6 @@
<xi:include href="ms_transform.xml"/>
<xi:include href="orddict.xml"/>
<xi:include href="ordsets.xml"/>
- <xi:include href="pg.xml"/>
<xi:include href="pool.xml"/>
<xi:include href="proc_lib.xml"/>
<xi:include href="proplists.xml"/>
diff --git a/lib/stdlib/doc/src/specs.xml b/lib/stdlib/doc/src/specs.xml
index 60a04ed5e7..fd77b52da6 100644
--- a/lib/stdlib/doc/src/specs.xml
+++ b/lib/stdlib/doc/src/specs.xml
@@ -39,7 +39,6 @@
<xi:include href="../specs/specs_ms_transform.xml"/>
<xi:include href="../specs/specs_orddict.xml"/>
<xi:include href="../specs/specs_ordsets.xml"/>
- <xi:include href="../specs/specs_pg.xml"/>
<xi:include href="../specs/specs_pool.xml"/>
<xi:include href="../specs/specs_proc_lib.xml"/>
<xi:include href="../specs/specs_proplists.xml"/>
diff --git a/lib/stdlib/src/Makefile b/lib/stdlib/src/Makefile
index 9ab2cd4134..1b3744b6fb 100644
--- a/lib/stdlib/src/Makefile
+++ b/lib/stdlib/src/Makefile
@@ -97,7 +97,6 @@ MODULES= \
otp_internal \
orddict \
ordsets \
- pg \
re \
pool \
proc_lib \
diff --git a/lib/stdlib/src/otp_internal.erl b/lib/stdlib/src/otp_internal.erl
index c0ee8799c8..662a0aca74 100644
--- a/lib/stdlib/src/otp_internal.erl
+++ b/lib/stdlib/src/otp_internal.erl
@@ -577,8 +577,6 @@ obsolete_1(asn1rt, utf8_binary_to_list, 1) ->
{deprecated,{unicode,characters_to_list,1}};
obsolete_1(asn1rt, utf8_list_to_binary, 1) ->
{deprecated,{unicode,characters_to_binary,1}};
-obsolete_1(pg, _, _) ->
- {deprecated,"deprecated; will be removed in OTP 18"};
obsolete_1(_, _, _) ->
no.
diff --git a/lib/stdlib/src/pg.erl b/lib/stdlib/src/pg.erl
deleted file mode 100644
index a41fd329c2..0000000000
--- a/lib/stdlib/src/pg.erl
+++ /dev/null
@@ -1,187 +0,0 @@
-%%
-%% %CopyrightBegin%
-%%
-%% Copyright Ericsson AB 1996-2014. All Rights Reserved.
-%%
-%% The contents of this file are subject to the Erlang Public License,
-%% Version 1.1, (the "License"); you may not use this file except in
-%% compliance with the License. You should have received a copy of the
-%% Erlang Public License along with this software. If not, it can be
-%% retrieved online at http://www.erlang.org/.
-%%
-%% Software distributed under the License is distributed on an "AS IS"
-%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
-%% the License for the specific language governing rights and limitations
-%% under the License.
-%%
-%% %CopyrightEnd%
-%%
--module(pg).
--deprecated(module).
-
-%% pg provides a process group facility. Messages
-%% can be multicasted to all members in the group
-
--export([create/1,
- create/2,
- standby/2,
- join/2,
- send/2,
- esend/2,
- members/1,
- name_to_pid/1,
- master/1]).
-
-
-%% Create a brand new empty process group with the master residing
-%% at the local node
-
--spec create(PgName) -> 'ok' | {'error', Reason} when
- PgName :: term(),
- Reason :: 'already_created' | term().
-
-create(PgName) ->
- catch begin check(PgName),
- Pid = spawn(pg,master,[PgName]),
- global:register_name(PgName,Pid),
- ok end.
-
-%% Create a brand new empty process group with the master
-%% residing at Node
-
--spec create(PgName, Node) -> 'ok' | {'error', Reason} when
- PgName :: term(),
- Node :: node(),
- Reason :: 'already_created' | term().
-
-create(PgName, Node) ->
- catch begin check(PgName),
- Pid = spawn(Node,pg,master,[PgName]),
- global:register_name(PgName,Pid),
- ok end.
-
-%% Have a process on Node that will act as a standby for the process
-%% group manager. So if the node where the manager runs fails, the
-%% process group will continue to function.
-
--spec standby(term(), node()) -> 'ok'.
-
-standby(_PgName, _Node) ->
- ok.
-
-%% Tell process group PgName that Pid is a new member of the group
-%% synchronously return a list of all old members in the group
-
--spec join(PgName, Pid) -> Members when
- PgName :: term(),
- Pid :: pid(),
- Members :: [pid()].
-
-join(PgName, Pid) when is_atom(PgName) ->
- global:send(PgName, {join,self(),Pid}),
- receive
- {_P,{members,Members}} ->
- Members
- end.
-
-%% Multi cast Mess to all members in the group
-
--spec send(PgName, Msg) -> 'ok' when
- PgName :: term(),
- Msg :: term().
-
-send(PgName, Mess) when is_atom(PgName) ->
- global:send(PgName, {send, self(), Mess}),
- ok;
-send(Pg, Mess) when is_pid(Pg) ->
- Pg ! {send,self(),Mess},
- ok.
-
-%% multi cast a message to all members in the group but ourselves
-%% If we are a member
-
--spec esend(PgName, Msg) -> 'ok' when
- PgName :: term(),
- Msg :: term().
-
-esend(PgName, Mess) when is_atom(PgName) ->
- global:send(PgName, {esend,self(),Mess}),
- ok;
-esend(Pg, Mess) when is_pid(Pg) ->
- Pg ! {esend,self(),Mess},
- ok.
-
-%% Return the members of the group
-
--spec members(PgName) -> Members when
- PgName :: term(),
- Members :: [pid()].
-
-members(PgName) when is_atom(PgName) ->
- global:send(PgName, {self() ,members}),
- receive
- {_P,{members,Members}} ->
- Members
- end;
-members(Pg) when is_pid(Pg) ->
- Pg ! {self,members},
- receive
- {_P,{members,Members}} ->
- Members
- end.
-
--spec name_to_pid(atom()) -> pid() | 'undefined'.
-
-name_to_pid(PgName) when is_atom(PgName) ->
- global:whereis_name(PgName).
-
--spec master(term()) -> no_return().
-
-master(PgName) ->
- process_flag(trap_exit, true),
- master_loop(PgName, []).
-
-master_loop(PgName,Members) ->
- receive
- {send,From,Message} ->
- send_all(Members,{pg_message,From,PgName,Message}),
- master_loop(PgName,Members);
- {esend,From,Message} ->
- send_all(lists:delete(From,Members),
- {pg_message,From,PgName,Message}),
- master_loop(PgName,Members);
- {join,From,Pid} ->
- link(Pid),
- send_all(Members,{new_member,PgName,Pid}),
- From ! {self(),{members,Members}},
- master_loop(PgName,[Pid|Members]);
- {From,members} ->
- From ! {self(),{members,Members}},
- master_loop(PgName,Members);
- {'EXIT',From,_} ->
- L =
- case lists:member(From,Members) of
- true ->
- NewMembers = lists:delete(From,Members),
- send_all(NewMembers, {crashed_member,PgName,From}),
- NewMembers;
- false ->
- Members
- end,
- master_loop(PgName,L)
- end.
-
-send_all([], _) -> ok;
-send_all([P|Ps], M) ->
- P ! M,
- send_all(Ps, M).
-
-%% Check if the process group already exists
-
-check(PgName) ->
- case global:whereis_name(PgName) of
- Pid when is_pid(Pid) ->
- throw({error,already_created});
- undefined ->
- ok
- end.
diff --git a/lib/stdlib/src/stdlib.app.src b/lib/stdlib/src/stdlib.app.src
index d388410de0..42a787dacf 100644
--- a/lib/stdlib/src/stdlib.app.src
+++ b/lib/stdlib/src/stdlib.app.src
@@ -77,7 +77,6 @@
orddict,
ordsets,
otp_internal,
- pg,
pool,
proc_lib,
proplists,
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-20 18:35:43 +0000