Added a device manager for devices monitoring

git-svn-id: file:///srv/svn/repos/haiku/trunk/current@8666 a95241bf-73f2-0310-859d-f6bbb57e9c96

src/servers/input/DeviceManager.cpp

@@ -0,0 +1,119 @@
+/*
+** Copyright 2004, the OpenBeOS project. All rights reserved.
+** Distributed under the terms of the OpenBeOS License.
+**
+** Author : Jérôme Duval
+** Original authors: Marcus Overhagen, Axel Dörfler
+*/
+
+
+#include <Autolock.h>
+#include <Directory.h>
+#include <Entry.h>
+#include <FindDirectory.h>
+#include <Path.h>
+#include <String.h>
+
+#include <image.h>
+#include <stdio.h>
+#include <string.h>
+
+#include "DeviceManager.h"
+#include "InputServer.h"
+
+
+DeviceManager::DeviceManager()
+	:
+ 	fLock("device manager")
+{
+}
+
+
+DeviceManager::~DeviceManager()
+{
+}
+
+
+void
+DeviceManager::LoadState()
+{
+	class IAHandler : public AddOnMonitorHandler {
+	private:
+		DeviceManager * fManager;
+	public:
+		IAHandler(DeviceManager * manager) {
+			fManager = manager;
+		}
+		virtual void	AddOnCreated(const add_on_entry_info * entry_info) {
+		}
+		virtual void	AddOnEnabled(const add_on_entry_info * entry_info) {
+			CALLED();
+			entry_ref ref;
+			make_entry_ref(entry_info->dir_nref.device, entry_info->dir_nref.node,
+			               entry_info->name, &ref);
+			BEntry entry(&ref, false);
+			//fManager->RegisterAddOn(entry);
+		}
+		virtual void	AddOnDisabled(const add_on_entry_info * entry_info) {
+			CALLED();
+			entry_ref ref;
+			make_entry_ref(entry_info->dir_nref.device, entry_info->dir_nref.node,
+			               entry_info->name, &ref);
+			BEntry entry(&ref, false);
+			//fManager->UnregisterAddOn(entry);
+		}
+		virtual void	AddOnRemoved(const add_on_entry_info * entry_info) {
+		}
+	};
+
+	fHandler = new IAHandler(this);
+	fAddOnMonitor = new AddOnMonitor(fHandler);
+}
+
+
+void
+DeviceManager::SaveState()
+{
+	CALLED();
+	BMessenger messenger(fAddOnMonitor);
+	messenger.SendMessage(B_QUIT_REQUESTED);
+	int32 exit_value;
+	wait_for_thread(fAddOnMonitor->Thread(), &exit_value);
+	delete fHandler;
+}
+
+
+status_t 
+DeviceManager::StartMonitoringDevice(_BDeviceAddOn_ *addon, 
+				const char *device)
+{
+	status_t err;
+	node_ref nref;
+	BDirectory directory;
+	BPath path("/dev");
+	if (((err = path.Append(device)) == B_OK)
+		&& ((err = directory.SetTo(path.Path())) == B_OK) 
+		&& ((err = directory.GetNodeRef(&nref)) == B_OK)
+		&& ((err = fHandler->AddDirectory(&nref)) == B_OK) ) {
+		return B_OK;
+	} else
+		return err;
+}
+
+
+status_t 
+DeviceManager::StopMonitoringDevice(_BDeviceAddOn_ *addon, 
+				const char *device)
+{
+	status_t err;
+	node_ref nref;
+	BDirectory directory;
+	BPath path("/dev");
+	if (((err = path.Append(device)) == B_OK)
+		&& ((err = directory.SetTo(path.Path())) == B_OK) 
+		&& ((err = directory.GetNodeRef(&nref)) == B_OK)
+		/*&& ((err = fHandler->RemoveDirectory(&nref)) ==B_OK)*/) {
+		return B_OK;
+	} else
+		return err;
+}

src/servers/input/DeviceManager.h

@@ -0,0 +1,44 @@
+/*
+** Copyright 2004, the OpenBeOS project. All rights reserved.
+** Distributed under the terms of the OpenBeOS License.
+**
+** Author : Jérôme Duval
+** Original authors: Marcus Overhagen, Axel Dörfler
+*/
+#ifndef _DEVICE_MANAGER_H
+#define _DEVICE_MANAGER_H
+
+// Manager for devices monitoring
+
+#include <Locker.h>
+#include <InputServerDevice.h>
+#include <InputServerFilter.h>
+#include <InputServerMethod.h>
+#include "AddOnMonitor.h"
+#include "AddOnMonitorHandler.h"
+#include "TList.h"
+
+class DeviceManager {
+	public:
+		DeviceManager();
+		~DeviceManager();
+
+		void		LoadState();
+		void		SaveState();
+		
+		status_t StartMonitoringDevice(_BDeviceAddOn_ *addon, 
+				const char *device);
+		status_t StopMonitoringDevice(_BDeviceAddOn_ *addon, 
+				const char *device);
+
+	private:
+		
+	private:
+		
+		BLocker fLock;
+		
+		AddOnMonitorHandler	*fHandler;
+		AddOnMonitor		*fAddOnMonitor;
+};
+
+#endif // _DEVICE_MANAGER_H

src/servers/input/InputServer.cpp

@@ -73,6 +73,8 @@ BLocker InputServer::gInputFilterListLocker;
 BList   InputServer::gInputMethodList;
 BLocker InputServer::gInputMethodListLocker;
 
+DeviceManager InputServer::gDeviceManager;
+
 /*BList InputServer::mInputServerDeviceList;
 BList InputServer::mInputServerFilterList;
 BList InputServer::mInputServerMethodList;*/
@@ -103,6 +105,8 @@ InputServer::InputServer(void) : BApplication("application/x-vnd.OBOS-input_serv
 	EventLoop(pointer);
 
 //	InitTestDevice();
+
+	gDeviceManager.LoadState();
 	
 	fAddOnManager = new AddOnManager();
 	fAddOnManager->LoadState();
@@ -484,6 +488,7 @@ InputServer::QuitRequested(void)
 {
 	CALLED();
 	fAddOnManager->SaveState();
+	gDeviceManager.SaveState();
 	
 	kill_thread(ISPortThread);
 	delete_port(EventLooperPort);

src/servers/input/InputServer.h

@@ -35,6 +35,7 @@
 #include <InputServerFilter.h>
 #include <InputServerMethod.h>
 #include "AddOnManager.h"
+#include "DeviceManager.h"
 
 #include <stdlib.h>
 #include <string.h>
@@ -169,6 +170,8 @@ public:
 	static BList   gInputMethodList;
 	static BLocker gInputMethodListLocker;
 	
+	static DeviceManager	gDeviceManager;
+	
 private:
 	/*void InitTestDevice();
 	

src/servers/input/InputServerDevice.cpp

@@ -229,10 +229,8 @@ BInputServerDevice::StartMonitoringDevice(const char *device)
 {
 	CALLED();
 	PRINT(("StartMonitoringDevice %s\n", device));
-	
-    status_t status = B_OK;
 
-    return status;
+    return InputServer::gDeviceManager.StartMonitoringDevice(fOwner, device);
 }
 
 
@@ -244,9 +242,7 @@ status_t
 BInputServerDevice::StopMonitoringDevice(const char *device)
 {
     CALLED();
-    status_t status = B_OK;
-
-    return status;
+    return InputServer::gDeviceManager.StopMonitoringDevice(fOwner, device);
 }
 
 /**

src/servers/input/Jamfile

@@ -17,6 +17,7 @@ Server input_server :
 	InputServerMethod.cpp
 
 	AddOnManager.cpp
+	DeviceManager.cpp
 
 	# storage
 	AddOnMonitor.cpp