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161 | -------------------------------------------------------------------------------
-- Copyright (C) 2020-2030, per.s.sandberg@bahnhof.se --
-- --
-- Permission is hereby granted, free of charge, to any person obtaining a --
-- copy of this software and associated documentation files --
-- (the "Software"), to deal in the Software without restriction, including --
-- without limitation the rights to use, copy, modify, merge, publish, --
-- distribute, sublicense, and / or sell copies of the Software, and to --
-- permit persons to whom the Software is furnished to do so, subject to --
-- the following conditions : --
-- --
-- The above copyright notice and this permission notice shall be included --
-- in all copies or substantial portions of the Software. --
-- --
-- THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS --
-- OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF --
-- MERCHANTABILITY, --
-- FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL --
-- THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR --
-- OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, --
-- ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR --
-- OTHER DEALINGS IN THE SOFTWARE. --
-------------------------------------------------------------------------------
with Ada.Text_IO; use Ada.Text_IO;
with GNAT.Exception_Traces;
with GNAT.Sockets;
with GNAT.Traceback.Symbolic;
with System.Address_To_Access_Conversions;
with ZMQ.Contexts;
with ZMQ.Low_Level;
with ZMQ.Messages;
with ZMQ.Sockets;
procedure ZMQ.Examples.Monitor is
use ZMQ.Sockets;
-- Port : constant String := "inproc://Zmq.pp";
-- Port : constant String := "tcp://127.0.0.1:61113";
-- Port : constant String := "tcp://lo:61112";
S_Port : constant String := "epgm://192.168.0.101;239.168.1.1:5555";
C_Port : constant String := "epgm://192.168.0.101;239.168.1.1:5555";
Monitor_URL : constant String := "inproc://monitor.req";
task type Server_Type (Ctx : not null access ZMQ.Contexts.Context) is
entry Done;
entry Start;
end Server_Type;
task body Server_Type is
S : ZMQ.Sockets.Socket;
begin
accept Start;
S.Initialize (Ctx.all, Sockets.SUB);
S.Connect (S_Port);
S.Set_Message_Filter ("hej");
loop
declare
Query : ZMQ.Messages.Message;
begin
S.Recv (Query);
Put_Line (Query.GetData);
exit when Query.GetData = END_MESSAGE;
end;
end loop;
S.DisConnect (S_Port);
accept Done;
end Server_Type;
task type Client_Type (Ctx : not null access ZMQ.Contexts.Context) is
entry Start;
entry Started;
entry Done;
end Client_Type;
task body Client_Type is
S : Sockets.Socket;
begin
accept Start;
S.Initialize (Ctx.all, Sockets.PUB);
S.Set_Monitor (Monitor_URL, Sockets.EVENT_ALL);
accept Started;
S.Connect (C_Port);
for I in 1 .. 5 loop
S.Send ("hej" & ASCII.NUL & ":" & GNAT.Sockets.Host_Name & ":" & I'Img);
S.Send ("hj" & ASCII.NUL & ":" & GNAT.Sockets.Host_Name & ":" & I'Img);
delay 0.5;
end loop;
S.Send (END_MESSAGE);
S.DisConnect (C_Port);
delay 0.2;
accept Done;
end Client_Type;
task type Monitor_Type (Ctx : not null access ZMQ.Contexts.Context) is
entry Done;
entry Start;
end Monitor_Type;
task body Monitor_Type is
S : Sockets.Socket;
E : aliased Low_Level.zmq_event_t;
package Conv is new
System.Address_To_Access_Conversions (Low_Level.Zmq_Event_T);
begin
accept Start;
S.Initialize (Ctx.all, Sockets.PAIR);
S.Connect (Monitor_URL);
loop
declare
Msg : ZMQ.Messages.Message;
begin
S.Recv (Msg);
E := Conv.To_Pointer (Msg.GetData).all;
Ada.Text_IO.Put_Line ("Monitor" & E.event'Img);
exit when Event_Type (E.event) = Sockets.EVENT_DISCONNECTED;
end;
end loop;
accept Done;
end Monitor_Type;
Ctx_1 : aliased ZMQ.Contexts.Context;
Ctx_2 : aliased ZMQ.Contexts.Context;
Monitor : Monitor_Type (Ctx_1'Access);
Server : Server_Type (Ctx_2'Access);
Client : Client_Type (Ctx_1'Access);
begin
GNAT.Exception_Traces.Trace_On (GNAT.Exception_Traces.Every_Raise);
GNAT.Exception_Traces.Set_Trace_Decorator
(GNAT.Traceback.Symbolic.Symbolic_Traceback'Access);
Ctx_1.Set_Number_Of_IO_Threads (2);
Client.Start; delay 0.01;
Monitor.Start; delay 0.01;
Server.Start; delay 0.01;
Client.Started; delay 0.01;
Client.Done; delay 0.1;
select
Server.Done;
or delay 0.2;
Ada.Text_IO.Put_Line ("abort Server");
abort Server;
end select;
select
Monitor.Done;
or delay 0.2;
Ada.Text_IO.Put_Line ("abort Monitor");
abort Monitor;
end select;
end ZMQ.Examples.Monitor;
|