84 lines
2 KiB
Go
84 lines
2 KiB
Go
//go:build windows
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/*
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* ============================================================================
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* Projekt.....: rs2322tcp
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* Datei.......: internal/client/virtual_port_open_windows.go
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* Copyright (C) 2026 Dieter Lang
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*
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* SPDX-License-Identifier: GPL-3.0-or-later
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*
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* Beschreibung:
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* Windows-spezifische Erzeugung eines verwalteten virtuellen rs2322tcp-Ports.
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*
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* Der konfigurierte virtuelle COM-Port wird über die bereits vorhandene
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* serielle Infrastruktur geöffnet.
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* ============================================================================
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*/
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package client
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import (
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"fmt"
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bugserial "go.bug.st/serial"
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)
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///////////////////////////////////////////////////////////////////////////////
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// Open virtual port
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///////////////////////////////////////////////////////////////////////////////
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// openVirtualPort creates and initializes a Windows virtual serial port.
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//
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// The port number must already have been reserved by the
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// VirtualPortManager.
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//
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// The visible COM port is provided by the platform-specific PortPath()
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// implementation. The actual COM-port pair configuration is managed
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// externally by the Windows virtual COM-port driver.
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func openVirtualPort(
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manager *VirtualPortManager,
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number int,
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) (*ManagedVirtualPort, error) {
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if manager == nil {
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return nil, fmt.Errorf("virtual port manager is nil")
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}
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portPath := manager.PortPath(number)
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if portPath == "" {
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return nil, fmt.Errorf(
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"virtual port path is empty for port %d",
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number,
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)
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}
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mode := &bugserial.Mode{
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BaudRate: 9600,
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DataBits: 8,
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Parity: bugserial.NoParity,
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StopBits: bugserial.OneStopBit,
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}
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serial, err := bugserial.Open(portPath, mode)
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if err != nil {
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return nil, fmt.Errorf(
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"open virtual serial port %s: %w",
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portPath,
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err,
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)
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}
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virtualPort := NewVirtualPort(
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portPath,
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&windowsSerial{
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port: serial,
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path: portPath,
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},
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)
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return &ManagedVirtualPort{
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port: virtualPort,
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manager: manager,
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number: number,
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}, nil
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}
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