Based on suggestion/patch from James Blackburn we also add more verbosity when going through the folders, this is more reassuring to the user then to see a blank "Binary Thread search"

fixes for PR:149428
 PR74387

core/org.eclipse.cdt.core/model/org/eclipse/cdt/internal/core/model/BinaryRunner.java

@@ -1,5 +1,5 @@
 /*******************************************************************************
- * Copyright (c) 2000, 2005 QNX Software Systems and others.
+ * Copyright (c) 2000, 2005, 2006 QNX Software Systems and others.
  * All rights reserved. This program and the accompanying materials
  * are made available under the terms of the Eclipse Public License v1.0
  * which accompanies this distribution, and is available at
@@ -83,6 +83,7 @@ public class BinaryRunner {
 
 	public void start() {
 		String taskName = CCorePlugin.getResourceString("CoreModel.BinaryRunner.Binary_Search_Thread"); //$NON-NLS-1$
+		taskName += " (" + cproject.getElementName() + ")";
 		runner = new Job(taskName) {
 
 			/*
@@ -91,10 +92,10 @@ public class BinaryRunner {
 			 * @see org.eclipse.core.runtime.jobs.Job#run(org.eclipse.core.runtime.IProgressMonitor)
 			 */
 			protected IStatus run(IProgressMonitor monitor) {
+				IStatus status = Status.OK_STATUS;
 				if (cproject == null || monitor.isCanceled()) {
-					return Status.CANCEL_STATUS;
-				}
-				
+					status = Status.CANCEL_STATUS;
+				} else {
 					try {
 						monitor.beginTask(getName(), IProgressMonitor.UNKNOWN);
 
@@ -109,11 +110,12 @@ public class BinaryRunner {
 						CModelOperation op = new BinaryRunnerOperation(cproject);
 						op.runOperation(monitor);
 
-					monitor.done();
 					} catch (CoreException e) {
-					return e.getStatus();
+						status = e.getStatus();
 					}
-				return Status.OK_STATUS;
+				}
+				monitor.done();
+				return status;
 			}
 		};
 		runner.schedule();
@@ -172,6 +174,8 @@ public class BinaryRunner {
 			
 			// check against known content types
 			String name = proxy.getName();
+			vMonitor.subTask(name); // give a hint to the user of what we are doing
+
 			IContentType contentType = CCorePlugin.getContentType(project, name);
 			if (contentType != null && textContentType != null) {
 				if (contentType != null && contentType.isKindOf(textContentType)) {

core/org.eclipse.cdt.core/model/org/eclipse/cdt/internal/core/model/CModelManager.java

@@ -13,7 +13,6 @@
 
 package org.eclipse.cdt.internal.core.model;
 
-import java.io.File;
 import java.io.IOException;
 import java.io.InputStream;
 import java.util.ArrayList;
@@ -408,8 +407,7 @@ public class CModelManager implements IResourceChangeListener, ICDescriptorListe
 			return null;
 		}
 		if (path.isAbsolute()) {
-			File file = path.toFile();
-			if (file == null || !file.isFile()) {
+			if (! Util.isNonZeroLengthFile(path)) {
 				return null;
 			}
 			try {
@@ -434,8 +432,7 @@ public class CModelManager implements IResourceChangeListener, ICDescriptorListe
 				IIncludeReference[] includeReferences = cproject.getIncludeReferences();
 				for (int i = 0; i < includeReferences.length; i++) {
 					IPath includePath = includeReferences[i].getPath().append(path);
-					File file = includePath.toFile();
-					if (file != null && file.isFile()) {
+					if (Util.isNonZeroLengthFile(includePath)) {
 						String id = CoreModel.getRegistedContentTypeId(cproject.getProject(), includePath.lastSegment());
 						if (id == null) {
 							// fallbakc to C Header
@@ -567,11 +564,9 @@ public class CModelManager implements IResourceChangeListener, ICDescriptorListe
 
 	public IBinaryFile createBinaryFile(IFile file) {
 		//Avoid name special devices, empty files and the like
-		File f = new File(file.getLocationURI());
-		if (!f.isFile() || f.length() == 0) {
+		if (! Util.isNonZeroLengthFile(file.getLocationURI())) {
 			return null;
 		}
-		
 		BinaryParserConfig[] parsers = getBinaryParser(file.getProject());
 		int hints = 0;
 		
@@ -659,13 +654,14 @@ public class CModelManager implements IResourceChangeListener, ICDescriptorListe
 		}
 	}
 
-	public BinaryRunner getBinaryRunner(ICProject project, boolean start) {
+	public BinaryRunner getBinaryRunner(ICProject cproject, boolean start) {
 		BinaryRunner runner = null;
 		synchronized (binaryRunners) {
-			runner = (BinaryRunner)binaryRunners.get(project.getProject());
+			IProject project = cproject.getProject();
+			runner = (BinaryRunner)binaryRunners.get(project);
 			if (runner == null) {
-				runner = new BinaryRunner(project.getProject());
-				binaryRunners.put(project.getProject(), runner);
+				runner = new BinaryRunner(project);
+				binaryRunners.put(project, runner);
 				if (start) {
 					runner.start();
 				}

core/org.eclipse.cdt.core/model/org/eclipse/cdt/internal/core/model/Util.java

@@ -17,6 +17,7 @@ import java.io.ByteArrayInputStream;
 import java.io.IOException;
 import java.io.InputStream;
 import java.io.InputStreamReader;
+import java.net.URI;
 import java.text.MessageFormat;
 
 import org.eclipse.cdt.core.CCorePlugin;
@@ -25,8 +26,12 @@ import org.eclipse.cdt.core.model.CModelException;
 import org.eclipse.cdt.core.model.ICModelStatusConstants;
 import org.eclipse.cdt.internal.core.model.IDebugLogConstants.DebugLogConstant;
 import org.eclipse.cdt.internal.core.util.CharArrayBuffer;
+import org.eclipse.core.filesystem.EFS;
+import org.eclipse.core.filesystem.IFileInfo;
+import org.eclipse.core.filesystem.URIUtil;
 import org.eclipse.core.resources.IFile;
 import org.eclipse.core.runtime.CoreException;
+import org.eclipse.core.runtime.IPath;
 import org.eclipse.core.runtime.IStatus;
 import org.eclipse.core.runtime.Status;
 
@@ -423,5 +428,30 @@ public class Util implements ICLogConstants {
 		return null;
 	}
 
+	/**
+	 * Return true if the file is not a directory and has length > 0
+	 * @param path
+	 * @return
+	 */
+	public static boolean isNonZeroLengthFile(IPath path) {
+		return isNonZeroLengthFile(URIUtil.toURI(path));
+	}
 
+	/**
+	 * Return true if the file is not a directory and has length > 0
+	 * @param path
+	 * @return
+	 */
+	public static boolean isNonZeroLengthFile(URI uri) {
+		try {
+			IFileInfo file = EFS.getStore(uri).fetchInfo();
+			if (file.getLength() == EFS.NONE) {
+				return false;
+			}
+			return true;
+		} catch (CoreException e) {
+			// ignore
+		}
+		return false;
+	}
 }