Merge branch 'refs/heads/master' of ssh://akwizgran@briar.git.sourceforge.net/gitroot/briar/prototype

This commit is contained in:
akwizgran
2011-11-24 14:59:04 +00:00
12 changed files with 179 additions and 78 deletions

View File

@@ -15,14 +15,18 @@ class ShutdownManagerImpl implements ShutdownManager {
hooks = new HashMap<Integer, Thread>();
}
public synchronized int addShutdownHook(Runnable runnable) {
public synchronized int addShutdownHook(Runnable r) {
int handle = nextHandle++;
Thread hook = new Thread(runnable);
Thread hook = createThread(r);
hooks.put(handle, hook);
Runtime.getRuntime().addShutdownHook(hook);
return handle;
}
protected Thread createThread(Runnable r) {
return new Thread(r);
}
public synchronized boolean removeShutdownHook(int handle) {
Thread hook = hooks.remove(handle);
if(hook == null) return false;

View File

@@ -1,21 +1,27 @@
package net.sf.briar.lifecycle;
import java.awt.HeadlessException;
import java.util.Map;
import java.util.TreeMap;
import java.util.concurrent.atomic.AtomicBoolean;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.swing.JFrame;
import net.sf.briar.util.OsUtils;
import com.sun.jna.Library;
import com.sun.jna.Native;
import com.sun.jna.Pointer;
import com.sun.jna.platform.win32.WinDef.HINSTANCE;
import com.sun.jna.platform.win32.WinDef.HMENU;
import com.sun.jna.platform.win32.WinDef.HWND;
import com.sun.jna.platform.win32.WinDef.LPARAM;
import com.sun.jna.platform.win32.WinDef.LRESULT;
import com.sun.jna.platform.win32.WinDef.WPARAM;
import com.sun.jna.platform.win32.WinUser.MSG;
import com.sun.jna.win32.StdCallLibrary;
import com.sun.jna.win32.StdCallLibrary.StdCallCallback;
import com.sun.jna.win32.W32APIFunctionMapper;
import com.sun.jna.win32.W32APITypeMapper;
class WindowsShutdownManagerImpl extends ShutdownManagerImpl {
@@ -23,36 +29,36 @@ class WindowsShutdownManagerImpl extends ShutdownManagerImpl {
Logger.getLogger(WindowsShutdownManagerImpl.class.getName());
private static final int WM_QUERYENDSESSION = 17;
private static final int WM_ENDSESSION = 22;
private static final int GWL_WNDPROC = -4;
private static final int WS_MINIMIZE = 0x20000000;
private final Map<String, Object> options;
private boolean initialised = false; // Locking: this
WindowsShutdownManagerImpl() {
// Use the Unicode versions of Win32 API calls
options = new TreeMap<String, Object>();
options.put(Library.OPTION_TYPE_MAPPER, W32APITypeMapper.UNICODE);
options.put(Library.OPTION_FUNCTION_MAPPER,
W32APIFunctionMapper.UNICODE);
}
@Override
public synchronized int addShutdownHook(Runnable runnable) {
public synchronized int addShutdownHook(Runnable r) {
if(!initialised) initialise();
return super.addShutdownHook(new RunOnce(runnable));
return super.addShutdownHook(r);
}
@Override
protected Thread createThread(Runnable r) {
return new StartOnce(r);
}
// Locking: this
private void initialise() {
if(OsUtils.isWindows()) {
try {
HWND hwnd = new HWND();
hwnd.setPointer(Native.getComponentPointer(new JFrame()));
User32 u = (User32) Native.loadLibrary("user32", User32.class);
try {
// Load the 64-bit functions
setCallback64Bit(u, hwnd);
} catch(UnsatisfiedLinkError e) {
// Load the 32-bit functions
setCallback32Bit(u, hwnd);
}
} catch(HeadlessException e) {
if(LOG.isLoggable(Level.WARNING)) LOG.warning(e.getMessage());
} catch(UnsatisfiedLinkError e) {
if(LOG.isLoggable(Level.WARNING)) LOG.warning(e.getMessage());
}
new EventLoop().start();
} else {
if(LOG.isLoggable(Level.WARNING))
LOG.warning("Windows shutdown manager used on non-Windows OS");
@@ -60,38 +66,6 @@ class WindowsShutdownManagerImpl extends ShutdownManagerImpl {
initialised = true;
}
private void setCallback64Bit(final User32 user32, HWND hwnd) {
final WindowProc oldProc = user32.GetWindowLongPtrW(hwnd, GWL_WNDPROC);
WindowProc newProc = new WindowProc() {
public LRESULT callback(HWND hwnd, int msg, WPARAM wp, LPARAM lp) {
if(msg == WM_QUERYENDSESSION) {
// It's safe to delay returning from this message
runShutdownHooks();
} else if(msg == WM_ENDSESSION) {
// Return immediately or the JVM crashes on return
}
return user32.CallWindowProcPtrW(oldProc, hwnd, msg, wp, lp);
}
};
user32.SetWindowLongPtrW(hwnd, GWL_WNDPROC, newProc);
}
private void setCallback32Bit(final User32 user32, HWND hwnd) {
final WindowProc oldProc = user32.GetWindowLongW(hwnd, GWL_WNDPROC);
WindowProc newProc = new WindowProc() {
public LRESULT callback(HWND hwnd, int msg, WPARAM wp, LPARAM lp) {
if(msg == WM_QUERYENDSESSION) {
// It's safe to delay returning from this message
runShutdownHooks();
} else if(msg == WM_ENDSESSION) {
// Return immediately or the JVM crashes on return
}
return user32.CallWindowProcW(oldProc, hwnd, msg, wp, lp);
}
};
user32.SetWindowLongW(hwnd, GWL_WNDPROC, newProc);
}
// Package access for testing
synchronized void runShutdownHooks() {
// Start each hook in its own thread
@@ -106,33 +80,81 @@ class WindowsShutdownManagerImpl extends ShutdownManagerImpl {
}
}
private static class RunOnce implements Runnable {
private class EventLoop extends Thread {
@Override
public void run() {
try {
// Load user32.dll
final User32 user32 = (User32) Native.loadLibrary("user32",
User32.class, options);
// Create a callback to handle the WM_QUERYENDSESSION message
WindowProc proc = new WindowProc() {
public LRESULT callback(HWND hwnd, int msg, WPARAM wp,
LPARAM lp) {
if(msg == WM_QUERYENDSESSION) {
// It's safe to delay returning from this message
runShutdownHooks();
}
// Pass the message to the default window procedure
return user32.DefWindowProc(hwnd, msg, wp, lp);
}
};
// Create a native window
HWND hwnd = user32.CreateWindowEx(0, "STATIC", "", WS_MINIMIZE,
0, 0, 0, 0, null, null, null, null);
// Register the callback
try {
// Use SetWindowLongPtr if available (64-bit safe)
user32.SetWindowLongPtr(hwnd, GWL_WNDPROC, proc);
if(LOG.isLoggable(Level.INFO))
LOG.info("Registered 64-bit callback");
} catch(UnsatisfiedLinkError e) {
// Use SetWindowLong if SetWindowLongPtr isn't available
user32.SetWindowLong(hwnd, GWL_WNDPROC, proc);
if(LOG.isLoggable(Level.INFO))
LOG.info("Registered 32-bit callback");
}
// Handle events until the window is destroyed
MSG msg = new MSG();
while(user32.GetMessage(msg, null, 0, 0) > 0) {
user32.TranslateMessage(msg);
user32.DispatchMessage(msg);
}
} catch(UnsatisfiedLinkError e) {
if(LOG.isLoggable(Level.WARNING)) LOG.warning(e.getMessage());
}
}
}
private static class StartOnce extends Thread {
private final Runnable runnable;
private final AtomicBoolean called = new AtomicBoolean(false);
private RunOnce(Runnable runnable) {
this.runnable = runnable;
private StartOnce(Runnable r) {
super(r);
}
public void run() {
if(called.getAndSet(true)) return;
runnable.run();
@Override
public void start() {
// Ensure the thread is only started once
if(!called.getAndSet(true)) super.start();
}
}
private static interface User32 extends StdCallLibrary {
LRESULT CallWindowProcW(WindowProc oldProc, HWND hwnd, int msg,
WPARAM wp, LPARAM lp);
LRESULT CallWindowProcPtrW(WindowProc oldProc, HWND hwnd, int msg,
WPARAM wp, LPARAM lp);
HWND CreateWindowEx(int styleEx, String className, String windowName,
int style, int x, int y, int width, int height, HWND parent,
HMENU menu, HINSTANCE instance, Pointer param);
WindowProc GetWindowLongW(HWND hwnd, int index);
WindowProc GetWindowLongPtrW(HWND hwnd, int index);
LRESULT DefWindowProc(HWND hwnd, int msg, WPARAM wp, LPARAM lp);
LRESULT SetWindowLong(HWND hwnd, int index, WindowProc newProc);
LRESULT SetWindowLongPtr(HWND hwnd, int index, WindowProc newProc);
LRESULT SetWindowLongW(HWND hwnd, int index, WindowProc newProc);
LRESULT SetWindowLongPtrW(HWND hwnd, int index, WindowProc newProc);
int GetMessage(MSG msg, HWND hwnd, int filterMin, int filterMax);
boolean TranslateMessage(MSG msg);
LRESULT DispatchMessage(MSG msg);
}
private static interface WindowProc extends StdCallCallback {

View File

@@ -18,9 +18,14 @@ public class RemovableDrivePluginFactory implements BatchPluginFactory {
if(OsUtils.isLinux()) {
finder = new LinuxRemovableDriveFinder();
monitor = new LinuxRemovableDriveMonitor();
} else if(OsUtils.isMac()) {
} else if(OsUtils.isMacLeopardOrNewer()) {
finder = new MacRemovableDriveFinder();
monitor = new MacRemovableDriveMonitor();
} else if(OsUtils.isMac()) {
// JNotify requires OS X 10.5 or newer, so we have to poll
finder = new MacRemovableDriveFinder();
monitor = new PollingRemovableDriveMonitor(finder,
POLLING_INTERVAL);
} else if(OsUtils.isWindows()) {
finder = new WindowsRemovableDriveFinder();
monitor = new PollingRemovableDriveMonitor(finder,