diff options
Diffstat (limited to 'src/nativewindow/classes/com')
| -rw-r--r-- | src/nativewindow/classes/com/jogamp/nativewindow/impl/x11/X11Util.java | 228 |
1 files changed, 198 insertions, 30 deletions
diff --git a/src/nativewindow/classes/com/jogamp/nativewindow/impl/x11/X11Util.java b/src/nativewindow/classes/com/jogamp/nativewindow/impl/x11/X11Util.java index 95fd6c72b..41ffccc42 100644 --- a/src/nativewindow/classes/com/jogamp/nativewindow/impl/x11/X11Util.java +++ b/src/nativewindow/classes/com/jogamp/nativewindow/impl/x11/X11Util.java @@ -34,6 +34,9 @@ package com.jogamp.nativewindow.impl.x11; import java.util.HashMap; import java.util.Map; +import java.util.Collection; +import java.util.ArrayList; +import java.util.Iterator; import javax.media.nativewindow.*; @@ -41,7 +44,7 @@ import com.jogamp.nativewindow.impl.*; /** * Contains a thread safe X11 utility to retrieve thread local display connection,<br> - * as well as the static global discplay connection.<br> + * as well as the static global display connection.<br> * * The TLS variant is thread safe per se, but be aware of the memory leak risk * where an application heavily utilizing this class on temporary new threads.<br> @@ -51,27 +54,98 @@ public class X11Util { static { NativeLibLoaderBase.loadNativeWindow("x11"); + installIOErrorHandler(); } private X11Util() {} private static ThreadLocal currentDisplayMap = new ThreadLocal(); + // not exactly thread safe, but good enough for our purpose, + // which is to tag a NamedDisplay uncloseable after creation. + private static Object globalLock = new Object(); + private static Collection globalNamedDisplayActive = new ArrayList(); + private static Collection globalNamedDisplayPassive = new ArrayList(); + + public static final String nullDeviceName = "nil" ; + public static class NamedDisplay implements Cloneable { - private String name; - private long handle; + String name; + long handle; + int refCount; + boolean unCloseable; protected NamedDisplay(String name, long handle) { this.name=name; this.handle=handle; + this.refCount=1; + this.unCloseable=false; } - public String getName() { return name; } - public long getHandle() { return handle; } + public final String getName() { return name; } + public final String getNameSafe() { return null == name ? nullDeviceName : name; } + public final long getHandle() { return handle; } + public final int getRefCount() { return refCount; } + public final boolean isUncloseable() { return unCloseable; } public Object clone() throws CloneNotSupportedException { return super.clone(); } + + public String toString() { + return "NamedX11Display["+name+", 0x"+Long.toHexString(handle)+", refCount "+refCount+", unCloseable "+unCloseable+"]"; + } + } + + /** Returns the number of unclosed X11 Displays. + * @param realXClosePendingDisplays if true, call XCloseDisplay on the remaining ones + */ + public static int shutdown(boolean realXClosePendingDisplays, boolean verbose) { + int num=0; + String msg; + if(DEBUG||verbose) { + msg = "X11Util.Display: Shutdown (active: "+globalNamedDisplayActive.size()+ + ", passive: "+globalNamedDisplayPassive.size() + ")"; + if(DEBUG) { + Exception e = new Exception(msg); + e.printStackTrace(); + } else if(verbose) { + System.err.println(msg); + } + } + + msg = realXClosePendingDisplays ? "Close" : "Keep" ; + + synchronized(globalLock) { + // for all passive displays .. + Collection namedDisplays = globalNamedDisplayPassive; + globalNamedDisplayPassive = new ArrayList(); + for(Iterator iter=namedDisplays.iterator(); iter.hasNext(); ) { + NamedDisplay ndpy = (NamedDisplay)iter.next(); + if(DEBUG||verbose) { + System.err.println(msg+" passive: "+ndpy); + } + if(realXClosePendingDisplays) { + X11Lib.XCloseDisplay(ndpy.getHandle()); + } + num++; + } + + // for all active displays .. + namedDisplays = globalNamedDisplayActive; + globalNamedDisplayActive = new ArrayList(); + for(Iterator iter=namedDisplays.iterator(); iter.hasNext(); ) { + NamedDisplay ndpy = (NamedDisplay)iter.next(); + if(DEBUG||verbose) { + System.err.println(msg+" active: "+ndpy); + } + if(realXClosePendingDisplays) { + X11Lib.XCloseDisplay(ndpy.getHandle()); + } + num++; + } + } + return num; } /** Returns a clone of the thread local display map, you may {@link Object#wait()} on it */ @@ -79,48 +153,120 @@ public class X11Util { return (Map) ((HashMap)getCurrentDisplayMapImpl()).clone(); } - /** Returns this thread current default display. If it doesn not exist, it is being created */ - public static long getThreadLocalDefaultDisplay() { - return getThreadLocalDisplay(null); + /** Returns this thread current default display. If it doesn not exist, it is being created, otherwise the reference count is increased */ + public static long createThreadLocalDefaultDisplay() { + return createThreadLocalDisplay(null); } - /** Returns this thread named display. If it doesn not exist, it is being created */ - public static long getThreadLocalDisplay(String name) { + /** Returns this thread named display. If it doesn not exist, it is being created, otherwise the reference count is increased */ + public static long createThreadLocalDisplay(String name) { NamedDisplay namedDpy = getCurrentDisplay(name); if(null==namedDpy) { + synchronized(globalLock) { + namedDpy = getNamedDisplay(globalNamedDisplayPassive, name); + if(null != namedDpy) { + if(!globalNamedDisplayPassive.remove(namedDpy)) { throw new RuntimeException("Internal: "+namedDpy); } + globalNamedDisplayActive.add(namedDpy); + addCurrentDisplay( namedDpy ); + } + } + } + if(null==namedDpy) { long dpy = X11Lib.XOpenDisplay(name); if(0==dpy) { throw new NativeWindowException("X11Util.Display: Unable to create a display("+name+") connection in Thread "+Thread.currentThread().getName()); } namedDpy = new NamedDisplay(name, dpy); - setCurrentDisplay( namedDpy ); + synchronized(globalLock) { + globalNamedDisplayActive.add(namedDpy); + addCurrentDisplay( namedDpy ); + } if(DEBUG) { - Exception e = new Exception("X11Util.Display: Created new TLS display("+name+") connection 0x"+Long.toHexString(dpy)+" in thread "+Thread.currentThread().getName()); + Exception e = new Exception("X11Util.Display: Created new TLS "+namedDpy+" in thread "+Thread.currentThread().getName()); + e.printStackTrace(); + } + } else { + namedDpy.refCount++; + if(DEBUG) { + Exception e = new Exception("X11Util.Display: Reused TLS "+namedDpy+" in thread "+Thread.currentThread().getName()); e.printStackTrace(); } } return namedDpy.getHandle(); } - /** Closes this thread named display. It returns the handle of the closed display or 0, if it does not exist. */ + /** Decrease the reference count of this thread named display. If it reaches 0, close it. + It returns the handle of the to be closed display. + It throws a RuntimeException in case the named display does not exist, + or the reference count goes below 0. + */ public static long closeThreadLocalDisplay(String name) { - NamedDisplay namedDpy = removeCurrentDisplay(name); + NamedDisplay namedDpy = getCurrentDisplay(name); if(null==namedDpy) { + throw new RuntimeException("X11Util.Display: Display("+name+") with given handle is not mapped to TLS in thread "+Thread.currentThread().getName()); + } + if(0==namedDpy.refCount) { + throw new RuntimeException("X11Util.Display: "+namedDpy+" has refCount already 0 in thread "+Thread.currentThread().getName()); + } + long dpy = namedDpy.getHandle(); + namedDpy.refCount--; + if(0==namedDpy.refCount) { + synchronized(globalLock) { + if(!globalNamedDisplayActive.remove(namedDpy)) { throw new RuntimeException("Internal: "+namedDpy); } + if(namedDpy.isUncloseable()) { + globalNamedDisplayPassive.add(namedDpy); + } else { + X11Lib.XCloseDisplay(dpy); + } + removeCurrentDisplay(namedDpy); + } if(DEBUG) { - Exception e = new Exception("X11Util.Display: Display("+name+") with given handle is not mapped to TLS in thread "+Thread.currentThread().getName()); + String type = namedDpy.isUncloseable() ? "passive" : "real" ; + Exception e = new Exception("X11Util.Display: Closing ( "+type+" ) TLS "+namedDpy+" in thread "+Thread.currentThread().getName()); e.printStackTrace(); } - return 0; - } - long dpy = namedDpy.getHandle(); - if(DEBUG) { - Exception e = new Exception("X11Util.Display: Closing TLS Display("+name+") with handle 0x"+Long.toHexString(dpy)+" in thread "+Thread.currentThread().getName()); + } else if(DEBUG) { + Exception e = new Exception("X11Util.Display: Keep TLS "+namedDpy+" in thread "+Thread.currentThread().getName()); e.printStackTrace(); } - X11Lib.XCloseDisplay(dpy); return dpy; } + public static String getThreadLocalDisplayName(long handle) { + NamedDisplay ndpy = getNamedDisplay(getCurrentDisplayMapImpl().values(), handle); + return null != ndpy ? ndpy.getName() : null; + } + + public static boolean markThreadLocalDisplayUndeletable(long handle) { + NamedDisplay ndpy = getNamedDisplay(getCurrentDisplayMapImpl().values(), handle); + if( null != ndpy ) { + ndpy.unCloseable=true; + return true; + } + return false; + } + + public static String getGlobalDisplayName(long handle, boolean active) { + String name; + synchronized(globalLock) { + NamedDisplay ndpy = getNamedDisplay(active ? globalNamedDisplayActive : globalNamedDisplayPassive, handle); + name = null != ndpy ? ndpy.getName() : null; + } + return name; + } + + public static boolean markGlobalDisplayUndeletable(long handle) { + boolean r=false; + synchronized(globalLock) { + NamedDisplay ndpy = getNamedDisplay(globalNamedDisplayActive, handle); + if( null != ndpy ) { + ndpy.unCloseable=true; + r=true; + } + } + return r; + } + private static Map getCurrentDisplayMapImpl() { Map displayMap = (Map) currentDisplayMap.get(); if(null==displayMap) { @@ -132,12 +278,11 @@ public class X11Util { /** maps the given display to the thread local display map * and notifies all threads synchronized to this display map. */ - private static NamedDisplay setCurrentDisplay(NamedDisplay newDisplay) { + private static NamedDisplay addCurrentDisplay(NamedDisplay newDisplay) { Map displayMap = getCurrentDisplayMapImpl(); NamedDisplay oldDisplay = null; synchronized(displayMap) { - String name = (null==newDisplay.getName())?"nil":newDisplay.getName(); - oldDisplay = (NamedDisplay) displayMap.put(name, newDisplay); + oldDisplay = (NamedDisplay) displayMap.put(newDisplay.getNameSafe(), newDisplay); displayMap.notifyAll(); } return oldDisplay; @@ -145,22 +290,45 @@ public class X11Util { /** removes the mapping of the given name from the thread local display map * and notifies all threads synchronized to this display map. */ - private static NamedDisplay removeCurrentDisplay(String name) { + private static NamedDisplay removeCurrentDisplay(NamedDisplay ndpy) { Map displayMap = getCurrentDisplayMapImpl(); - NamedDisplay oldDisplay = null; synchronized(displayMap) { - if(null==name) name="nil"; - oldDisplay = (NamedDisplay) displayMap.remove(name); + NamedDisplay ndpyDel = (NamedDisplay) displayMap.remove(ndpy.getNameSafe()); + if(ndpyDel!=ndpy) { + throw new RuntimeException("Wrong mapping req: "+ndpy+", got "+ndpyDel); + } displayMap.notifyAll(); } - return oldDisplay; + return ndpy; } /** Returns the thread local display mapped to the given name */ private static NamedDisplay getCurrentDisplay(String name) { - if(null==name) name="nil"; + if(null==name) name=nullDeviceName; Map displayMap = getCurrentDisplayMapImpl(); return (NamedDisplay) displayMap.get(name); } + private static NamedDisplay getNamedDisplay(Collection namedDisplays, String name) { + if(null==name) name=nullDeviceName; + for(Iterator iter=namedDisplays.iterator(); iter.hasNext(); ) { + NamedDisplay ndpy = (NamedDisplay)iter.next(); + if (ndpy.getNameSafe().equals(name)) { + return ndpy; + } + } + return null; + } + + private static NamedDisplay getNamedDisplay(Collection namedDisplays, long handle) { + for(Iterator iter=namedDisplays.iterator(); iter.hasNext(); ) { + NamedDisplay ndpy = (NamedDisplay)iter.next(); + if (ndpy.getHandle()==handle) { + return ndpy; + } + } + return null; + } + + private static native void installIOErrorHandler(); } |