146 lines
5.3 KiB
Ada
146 lines
5.3 KiB
Ada
-------------------------------------------------------------------------------
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-- --
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-- 0MQ Ada-binding --
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-- --
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-- Z M Q . C O N T E X T S --
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-- --
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-- B o d y --
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-- --
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-- Copyright (C) 2013-2020, per.s.sandberg@bahnhof.se --
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-- --
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-- Permission is hereby granted, free of charge, to any person obtaining a --
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-- copy of this software and associated documentation files --
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-- (the "Software"), to deal in the Software without restriction, including --
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-- without limitation the rights to use, copy, modify, merge, publish, --
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-- distribute, sublicense, and / or sell copies of the Software, and to --
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-- permit persons to whom the Software is furnished to do so, subject to --
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-- the following conditions : --
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-- --
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-- The above copyright notice and this permission notice shall be included --
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-- in all copies or substantial portions of the Software. --
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-- --
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-- THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS --
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-- OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF --
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-- MERCHANTABILITY, --
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-- FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL --
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-- THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR --
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-- OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, --
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-- ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR --
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-- OTHER DEALINGS IN THE SOFTWARE. --
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-------------------------------------------------------------------------------
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with Interfaces.C;
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with ZMQ.Low_Level;
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with GNAT.OS_Lib;
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with GNAT.Source_Info;
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package body ZMQ.Contexts is
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use Interfaces.C;
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use System;
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----------------
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-- Initialize --
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----------------
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overriding procedure Initialize
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(This : in out Context)
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is
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begin
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Validate_Library_Version;
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if This.c /= Null_Address then
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raise ZMQ_Error with "Already Initialized";
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end if;
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This.c := Low_Level.zmq_ctx_new;
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if This.c = Null_Address then
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raise ZMQ_Error with Error_Message (GNAT.OS_Lib.Errno) & " in " &
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GNAT.Source_Info.Enclosing_Entity;
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end if;
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end Initialize;
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--------------
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-- Finalize --
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--------------
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overriding procedure Finalize
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(This : in out Context)
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is
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rc : int;
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begin
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if This.Is_Connected then
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rc := Low_Level.zmq_ctx_destroy (This.c);
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if rc /= 0 then
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raise ZMQ_Error with Error_Message (GNAT.OS_Lib.Errno) & " in " &
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GNAT.Source_Info.Enclosing_Entity;
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end if;
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This.c := Null_Address;
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end if;
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end Finalize;
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function Is_Connected (This : Context) return Boolean is
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begin
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return This.c /= Null_Address;
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end Is_Connected;
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function GetImpl (This : Context) return System.Address is
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begin
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return This.c;
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end GetImpl;
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not overriding
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procedure Set_number_of_IO_threads
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(This : in out Context; Threads : Natural := 1) is
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begin
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if Low_Level.zmq_ctx_set
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(This.c, Low_Level.Defs.ZMQ_IO_THREADS, int (Threads)) /= 0 then
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raise Program_Error with Error_Message (errno);
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end if;
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end Set_number_of_IO_threads;
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not overriding
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function get_number_of_IO_threads (This : in out Context) return Natural is
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begin
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return Natural
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(Low_Level.zmq_ctx_get (This.c, Low_Level.Defs.ZMQ_IO_THREADS));
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end get_number_of_IO_threads;
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not overriding
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procedure Set_maximum_number_of_sockets
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(This : in out Context; Count : Positive := 1024) is
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begin
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if Low_Level.zmq_ctx_set
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(This.c, Low_Level.Defs.ZMQ_MAX_SOCKETS, int (Count)) /= 0 then
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raise Program_Error with Error_Message (errno);
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end if;
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end Set_maximum_number_of_sockets;
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not overriding
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function Get_maximum_number_of_sockets
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(This : in out Context) return Natural is
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begin
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return Natural
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(Low_Level.zmq_ctx_get (This.c, Low_Level.Defs.ZMQ_MAX_SOCKETS));
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end Get_maximum_number_of_sockets;
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not overriding
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procedure Set_IPv6
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(This : in out Context; Enable : Boolean := False) is
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begin
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if Low_Level.zmq_ctx_set
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(This.c, Low_Level.Defs.ZMQ_IPV6, Boolean'Pos (Enable)) /= 0 then
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raise Program_Error with Error_Message (errno);
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end if;
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end Set_IPv6;
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not overriding
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function Get_IPv6 (This : in out Context) return Boolean is
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begin
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return Low_Level.zmq_ctx_get
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(This.c, Low_Level.Defs.ZMQ_MAX_SOCKETS) = 1;
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end Get_IPv6;
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end ZMQ.Contexts;
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