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-rw-r--r--src/java/com/jogamp/gluegen/runtime/ProcAddressTable.java93
1 files changed, 62 insertions, 31 deletions
diff --git a/src/java/com/jogamp/gluegen/runtime/ProcAddressTable.java b/src/java/com/jogamp/gluegen/runtime/ProcAddressTable.java
index e137385..a175c89 100644
--- a/src/java/com/jogamp/gluegen/runtime/ProcAddressTable.java
+++ b/src/java/com/jogamp/gluegen/runtime/ProcAddressTable.java
@@ -1,5 +1,6 @@
/*
* Copyright (c) 2003-2005 Sun Microsystems, Inc. All Rights Reserved.
+ * Copyright (c) 2013 JogAmp Community. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
@@ -36,6 +37,8 @@
package com.jogamp.gluegen.runtime;
import com.jogamp.common.os.DynamicLookupHelper;
+import com.jogamp.common.util.SecurityUtil;
+
import java.io.BufferedOutputStream;
import java.io.File;
import java.io.FileOutputStream;
@@ -75,7 +78,8 @@ import java.util.TreeMap;
*/
public abstract class ProcAddressTable {
- public static final String PROCADDRESS_VAR_PREFIX = "_addressof_";
+ private static final String PROCADDRESS_VAR_PREFIX = "_addressof_";
+ private static final int PROCADDRESS_VAR_PREFIX_LEN = PROCADDRESS_VAR_PREFIX.length();
protected static boolean DEBUG;
protected static String DEBUG_PREFIX;
@@ -106,24 +110,28 @@ public abstract class ProcAddressTable {
/**
* Resets the complete table.
+ * @throws SecurityException if caller has not all-permissions in case a SecurityManager is installed
*/
- public void reset(DynamicLookupHelper lookup) throws RuntimeException {
-
+ public void reset(DynamicLookupHelper lookup) throws SecurityException, RuntimeException {
+ SecurityUtil.checkAllPermissions();
+
if(null==lookup) {
throw new RuntimeException("Passed null DynamicLookupHelper");
}
- PrintStream dout = getDebugOutStream();
-
+ final PrintStream dout;
if (DEBUG) {
+ dout = getDebugOutStream();
dout.println(getClass().getName()+".reset()");
+ } else {
+ dout = null;
}
- Field[] fields = getClass().getFields();
+ final Field[] fields = getClass().getFields();
for (int i = 0; i < fields.length; ++i) {
- String fieldName = fields[i].getName();
- if (isAddressField(fieldName)) {
- String funcName = fieldToFunctionName(fieldName);
+ final String fieldName = fields[i].getName();
+ if ( isAddressField(fieldName) ) {
+ final String funcName = fieldToFunctionName(fieldName);
setEntry(fields[i], funcName, lookup);
}
}
@@ -139,13 +147,15 @@ public abstract class ProcAddressTable {
/**
* Initializes the mapping for a single function.
* @throws IllegalArgumentException if this function is not in this table.
+ * @throws SecurityException if caller has not all-permissions in case a SecurityManager is installed
*/
- public void initEntry(String name, DynamicLookupHelper lookup) {
+ public void initEntry(String name, DynamicLookupHelper lookup) throws SecurityException, IllegalArgumentException {
+ SecurityUtil.checkAllPermissions();
Field field = fieldForFunction(name);
setEntry(field, name, lookup);
}
- protected void setEntry(Field addressField, String funcName, DynamicLookupHelper lookup) {
+ private final void setEntry(Field addressField, String funcName, DynamicLookupHelper lookup) {
try {
assert (addressField.getType() == Long.TYPE);
long newProcAddress = resolver.resolve(funcName, lookup);
@@ -160,11 +170,11 @@ public abstract class ProcAddressTable {
}
}
- protected String fieldToFunctionName(String addressFieldName) {
- return addressFieldName.substring(PROCADDRESS_VAR_PREFIX.length());
+ private final String fieldToFunctionName(String addressFieldName) {
+ return addressFieldName.substring(PROCADDRESS_VAR_PREFIX_LEN);
}
- protected Field fieldForFunction(String name) {
+ private final Field fieldForFunction(String name) throws IllegalArgumentException {
try {
return getClass().getField(PROCADDRESS_VAR_PREFIX + name);
} catch (NoSuchFieldException ex) {
@@ -172,11 +182,11 @@ public abstract class ProcAddressTable {
}
}
- protected boolean isAddressField(String fieldName) {
+ private final boolean isAddressField(String fieldName) {
return fieldName.startsWith(PROCADDRESS_VAR_PREFIX);
}
- protected static PrintStream getDebugOutStream() {
+ private final static PrintStream getDebugOutStream() {
PrintStream out = null;
if (DEBUG) {
if (DEBUG_PREFIX != null) {
@@ -197,14 +207,13 @@ public abstract class ProcAddressTable {
/**
* Returns this table as map with the function name as key and the address as value.
*/
- public Map<String, Long> toMap() {
-
- SortedMap<String, Long> map = new TreeMap<String, Long>();
+ private final Map<String, Long> toMap() {
+ final SortedMap<String, Long> map = new TreeMap<String, Long>();
- Field[] fields = getClass().getFields();
+ final Field[] fields = getClass().getFields();
try {
for (int i = 0; i < fields.length; ++i) {
- String addressFieldName = fields[i].getName();
+ final String addressFieldName = fields[i].getName();
if (isAddressField(addressFieldName)) {
map.put(fieldToFunctionName(addressFieldName), (Long)fields[i].get(this));
}
@@ -221,23 +230,46 @@ public abstract class ProcAddressTable {
/**
* Returns true only if non null function pointer to this function exists.
*/
- public boolean isFunctionAvailable(String functionName) {
+ public final boolean isFunctionAvailable(String functionName) {
try{
- return getAddressFor(functionName) != 0;
- }catch (IllegalArgumentException ex) {
+ return isFunctionAvailableImpl(functionName);
+ } catch (IllegalArgumentException ex) {
return false;
}
}
/**
- * This is a convenience method to get (by name) the native function
- * pointer for a given function. It lets you avoid having to
+ * This is a convenience method to query the native function existence by name.
+ * <p>
+ * It lets you avoid having to
+ * manually compute the &quot;{@link #PROCADDRESS_VAR_PREFIX} + &lt;functionName&gt;&quot;
+ * member variable name and look it up via reflection.
+ * </p>
+ *
+ * @throws IllegalArgumentException if this function is not in this table.
+ */
+ protected boolean isFunctionAvailableImpl(String functionName) throws IllegalArgumentException {
+ Field addressField = fieldForFunction(functionName);
+ try {
+ return 0 != addressField.getLong(this);
+ } catch (IllegalAccessException ex) {
+ throw new RuntimeException(ex);
+ }
+ }
+
+ /**
+ * This is a convenience method to query the native function handle by name.
+ * <p>
+ * It lets you avoid having to
* manually compute the &quot;{@link #PROCADDRESS_VAR_PREFIX} + &lt;functionName&gt;&quot;
* member variable name and look it up via reflection.
+ * </p>
*
* @throws IllegalArgumentException if this function is not in this table.
+ * @throws SecurityException if caller has not all-permissions in case a SecurityManager is installed
*/
- public long getAddressFor(String functionName) {
+ public long getAddressFor(String functionName) throws SecurityException, IllegalArgumentException {
+ SecurityUtil.checkAllPermissions();
Field addressField = fieldForFunction(functionName);
try {
return addressField.getLong(this);
@@ -249,7 +281,7 @@ public abstract class ProcAddressTable {
/**
* Returns all functions pointing to null.
*/
- public Set<String> getNullPointerFunctions() {
+ public final Set<String> getNullPointerFunctions() {
Map<String, Long> table = toMap();
Set<String> nullPointers = new LinkedHashSet<String>();
for (Iterator<Map.Entry<String, Long>> it = table.entrySet().iterator(); it.hasNext();) {
@@ -262,12 +294,11 @@ public abstract class ProcAddressTable {
return nullPointers;
}
-// @Override
- public String toString() {
+ @Override
+ public final String toString() {
return getClass().getName()+""+toMap();
}
-
private static class One2OneResolver implements FunctionAddressResolver {
public long resolve(String name, DynamicLookupHelper lookup) {
return lookup.dynamicLookupFunction(name);
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-29 23:41:35 +0000