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/* Copyright (C) 2002-2003 RealVNC Ltd. All Rights Reserved.
*
* This is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This software is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this software; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
* USA.
*/
// -=- RegConfig.cxx
#include <malloc.h>
#include <rfb_win32/RegConfig.h>
#include <rfb/LogWriter.h>
#include <rfb/util.h>
#include <rdr/HexOutStream.h>
using namespace rfb;
using namespace rfb::win32;
static LogWriter vlog("RegConfig");
class rfb::win32::RegReaderThread : public Thread {
public:
RegReaderThread(RegistryReader& reader, const HKEY key);
~RegReaderThread();
virtual void run();
virtual Thread* join();
protected:
RegistryReader& reader;
RegKey key;
HANDLE event;
};
RegReaderThread::RegReaderThread(RegistryReader& reader_, const HKEY key_) : Thread("RegConfig"), reader(reader_), key(key_) {
}
RegReaderThread::~RegReaderThread() {
}
void
RegReaderThread::run() {
vlog.debug("RegReaderThread started");
while (key) {
// - Wait for changes
vlog.debug("waiting for changes");
key.awaitChange(true, REG_NOTIFY_CHANGE_NAME | REG_NOTIFY_CHANGE_LAST_SET);
// - Load settings
RegistryReader::loadRegistryConfig(key);
// - Notify specified thread of changes
if (reader.notifyThread)
PostThreadMessage(reader.notifyThread->getThreadId(),
reader.notifyMsg.message,
reader.notifyMsg.wParam,
reader.notifyMsg.lParam);
else if (reader.notifyWindow)
PostMessage(reader.notifyWindow,
reader.notifyMsg.message,
reader.notifyMsg.wParam,
reader.notifyMsg.lParam);
}
}
Thread*
RegReaderThread::join() {
RegKey old_key = key;
key.close();
if ((HKEY)old_key) {
// *** Closing the key doesn't always seem to work
// Writing to it always will, instead...
vlog.debug("closing key");
old_key.setString(_T("dummy"), _T(""));
}
return Thread::join();
}
RegistryReader::RegistryReader() : thread(0), notifyThread(0) {
memset(¬ifyMsg, 0, sizeof(notifyMsg));
}
RegistryReader::~RegistryReader() {
if (thread) delete thread->join();
}
bool RegistryReader::setKey(const HKEY rootkey, const TCHAR* keyname) {
if (thread) delete thread->join();
thread = 0;
RegKey key;
try {
key.createKey(rootkey, keyname);
loadRegistryConfig(key);
} catch (rdr::Exception& e) {
vlog.debug(e.str());
return false;
}
thread = new RegReaderThread(*this, key);
if (thread) thread->start();
return true;
}
void
RegistryReader::loadRegistryConfig(RegKey& key) {
DWORD i = 0;
try {
while (1) {
TCharArray name = tstrDup(key.getValueName(i++));
if (!name.buf) break;
TCharArray value = key.getRepresentation(name.buf);
if (!value.buf || !Configuration::setParam(CStr(name.buf), CStr(value.buf)))
vlog.info("unable to process %s", CStr(name.buf));
}
} catch (rdr::SystemException& e) {
if (e.err != 6)
vlog.error(e.str());
}
}
bool RegistryReader::setNotifyThread(Thread* thread, UINT winMsg, WPARAM wParam, LPARAM lParam) {
notifyMsg.message = winMsg;
notifyMsg.wParam = wParam;
notifyMsg.lParam = lParam;
notifyThread = thread;
notifyWindow = 0;
return true;
}
bool RegistryReader::setNotifyWindow(HWND window, UINT winMsg, WPARAM wParam, LPARAM lParam) {
notifyMsg.message = winMsg;
notifyMsg.wParam = wParam;
notifyMsg.lParam = lParam;
notifyWindow = window;
notifyThread = 0;
return true;
}
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