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/*
* Copyright (c) 2010, Sven Gothel
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* * Neither the name of Sven Gothel nor the
* names of its contributors may be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL Sven Gothel BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package com.jogamp.common.os;
import java.util.*;
import java.security.*;
import com.jogamp.common.jvm.JNILibLoaderBase;
import com.jogamp.common.util.MiscUtils;
/**
* Provides bundling of:<br>
* <ul>
* <li>The to-be-glued native library, eg OpenGL32.dll. From hereon this is referred as the Tool.</li>
* <li>The JNI glue-code native library, eg jogl_desktop.dll. From heron this is referred as the Glue</li>
* </ul><br>
* An instance provides a complete {@link com.jogamp.common.os.DynamicLookupHelper}
* to {@link com.jogamp.gluegen.runtime.ProcAddressTable#reset(com.jogamp.common.os.DynamicLookupHelper lookup)}
* the {@link com.jogamp.gluegen.runtime.ProcAddressTable}.<br>
* At construction, it loads the Tool native library, loads Glue native library via
* {@link com.jogamp.common.os.DynamicLibraryBundleInfo#loadJNILibrary()}
* and resolves the optional Tool's <pre>GetProcAddress</pre> using {@link com.jogamp.common.os.DynamicLibraryBundleInfo#getToolGetProcAddressFuncNameList()}.
*/
public class DynamicLibraryBundle implements DynamicLookupHelper {
protected static final boolean DEBUG = NativeLibrary.DEBUG;
protected static final boolean DEBUG_LOOKUP = NativeLibrary.DEBUG_LOOKUP;
private DynamicLibraryBundleInfo info;
private List/*<List<String>>*/ toolLibNames;
private boolean[] toolLibLoaded;
private int toolLibLoadedNumber;
protected List/*<NativeLibrary>*/ nativeLibraries;
private List/*<String>*/ glueLibNames;
private boolean[] glueLibLoaded;
private int glueLibLoadedNumber;
private long toolGetProcAddressHandle;
private HashSet toolGetProcAddressFuncNameSet;
private List toolGetProcAddressFuncNameList;
public DynamicLibraryBundle(DynamicLibraryBundleInfo info) {
if(null==info) {
throw new RuntimeException("Null DynamicLibraryBundleInfo");
}
this.info = info;
if(DEBUG) {
System.out.println("DynamicLibraryBundle.init start with: "+info.getClass().getName());
}
nativeLibraries = new ArrayList();
toolLibNames = info.getToolLibNames();
glueLibNames = info.getGlueLibNames();
loadLibraries();
toolGetProcAddressFuncNameList = info.getToolGetProcAddressFuncNameList();
if(null!=toolGetProcAddressFuncNameList) {
toolGetProcAddressFuncNameSet = new HashSet(toolGetProcAddressFuncNameList);
toolGetProcAddressHandle = getToolGetProcAddressHandle();
} else {
toolGetProcAddressFuncNameSet = new HashSet();
toolGetProcAddressHandle = 0;
}
if(DEBUG) {
System.out.println("DynamicLibraryBundle.init Summary: "+info.getClass().getName());
System.out.println(" toolGetProcAddressFuncNameList: "+MiscUtils.toString(toolGetProcAddressFuncNameList));
System.out.println(" Tool Lib Names : "+MiscUtils.toString(toolLibNames));
System.out.println(" Tool Lib Loaded: "+getToolLibLoadedNumber()+"/"+getToolLibNumber()+", complete "+isToolLibComplete());
System.out.println(" Glue Lib Names : "+MiscUtils.toString(glueLibNames));
System.out.println(" Glue Lib Loaded: "+getGlueLibLoadedNumber()+"/"+getGlueLibNumber()+", complete "+isGlueLibComplete());
System.out.println(" All Complete: "+isLibComplete());
}
}
public final boolean isLibComplete() {
return isToolLibComplete() && isGlueLibComplete() ;
}
public final int getToolLibNumber() {
return toolLibNames.size();
}
public final int getToolLibLoadedNumber() {
return toolLibLoadedNumber;
}
public final boolean isToolLibComplete() {
return getToolLibNumber() == getToolLibLoadedNumber();
}
public final boolean isToolLibLoaded() {
return 0 < toolLibLoadedNumber;
}
public final boolean isToolLibLoaded(int i) {
if(0 <= i && i < toolLibLoaded.length) {
return toolLibLoaded[i];
}
return false;
}
public final int getGlueLibNumber() {
return glueLibNames.size();
}
public final int getGlueLibLoadedNumber() {
return glueLibLoadedNumber;
}
public final boolean isGlueLibComplete() {
return getGlueLibNumber() == getGlueLibLoadedNumber();
}
public final boolean isGlueLibLoaded(int i) {
if(0 <= i && i < glueLibLoaded.length) {
return glueLibLoaded[i];
}
return false;
}
public final DynamicLibraryBundleInfo getBundleInfo() { return info; }
protected long getToolGetProcAddressHandle() {
if(!isToolLibLoaded()) {
return 0;
}
long aptr = 0;
for(Iterator iter=toolGetProcAddressFuncNameList.iterator(); 0==aptr && iter.hasNext(); ) {
String name = (String) iter.next();
aptr = dynamicLookupFunctionOnLibs(name);
if(DEBUG) {
System.out.println("getToolGetProcAddressHandle: "+name+" -> 0x"+Long.toHexString(aptr));
}
}
return aptr;
}
protected NativeLibrary loadFirstAvailable(List/*<String>*/ libNames, ClassLoader loader, boolean global) {
for (Iterator iter = libNames.iterator(); iter.hasNext(); ) {
NativeLibrary lib = NativeLibrary.open((String) iter.next(), loader, global);
if (lib != null) {
return lib;
}
}
return null;
}
private void loadLibraries() {
if( null == toolLibNames || toolLibNames.size() == 0) {
if(DEBUG) {
System.out.println("No Tool native library names given");
}
return;
}
if( null == glueLibNames || glueLibNames.size() == 0 ) {
if(DEBUG) {
System.out.println("No Glue native library names given");
}
return;
}
toolLibLoadedNumber = 0;
int i;
toolLibLoaded = new boolean[toolLibNames.size()];
for(i=0; i<toolLibNames.size(); i++) {
toolLibLoaded[i] = false;
}
glueLibLoaded = new boolean[glueLibNames.size()];
for(i=0; i<glueLibNames.size(); i++) {
glueLibLoaded[i] = false;
}
ClassLoader loader = getClass().getClassLoader();
NativeLibrary lib = null;
i=0;
for(Iterator iter = toolLibNames.iterator(); iter.hasNext(); i++) {
Object listObj = iter.next();
List/*<String>*/ libNames = null;
if(listObj instanceof List) {
libNames = (List) listObj;
} else if(listObj instanceof String) {
libNames = new ArrayList();
libNames.add((String)listObj);
} else {
throw new RuntimeException("List element "+i+" must be either a List or String: "+MiscUtils.toString(toolLibNames));
}
if( null != libNames && libNames.size() > 0 ) {
lib = loadFirstAvailable(libNames, loader, info.shallLinkGlobal());
if ( null == lib ) {
if(DEBUG) {
System.out.println("Unable to load any Tool library of: "+MiscUtils.toString(libNames));
}
} else {
nativeLibraries.add(lib);
toolLibLoaded[i]=true;
toolLibLoadedNumber++;
if(DEBUG) {
System.out.println("Loaded Tool library: "+lib);
}
}
}
}
if( !isToolLibLoaded() ) {
if(DEBUG) {
System.out.println("No Tool libraries loaded");
}
return;
}
glueLibLoadedNumber = 0;
i=0;
for(Iterator iter = glueLibNames.iterator(); iter.hasNext(); i++) {
String libName = (String) iter.next();
boolean ignoreError = true;
boolean res;
try {
res = GlueJNILibLoaderBase.loadLibrary(libName, ignoreError);
if(DEBUG && !res) {
System.out.println("Info: Could not load JNI/Glue library: "+libName);
}
} catch (UnsatisfiedLinkError e) {
res = false;
if(DEBUG) {
System.out.println("Unable to load JNI/Glue library: "+libName);
e.printStackTrace();
}
}
glueLibLoaded[i] = res;
if(res) {
glueLibLoadedNumber++;
}
}
}
private long dynamicLookupFunctionOnLibs(String funcName) {
if(!isToolLibLoaded() || null==funcName) {
if(DEBUG_LOOKUP && !isToolLibLoaded()) {
System.err.println("Lookup-Native: <" + funcName + "> ** FAILED ** Tool native library not loaded");
}
return 0;
}
long addr = 0;
NativeLibrary lib = null;
if(info.shallLookupGlobal()) {
// Try a global symbol lookup first ..
addr = NativeLibrary.dynamicLookupFunctionGlobal(funcName);
}
// Look up this function name in all known libraries
for (Iterator iter = nativeLibraries.iterator(); 0==addr && iter.hasNext(); ) {
lib = (NativeLibrary) iter.next();
addr = lib.dynamicLookupFunction(funcName);
}
if(DEBUG_LOOKUP) {
String libName = ( null == lib ) ? "GLOBAL" : lib.toString();
if(0!=addr) {
System.err.println("Lookup-Native: <" + funcName + "> 0x" + Long.toHexString(addr) + " in lib " + libName );
} else {
System.err.println("Lookup-Native: <" + funcName + "> ** FAILED ** in libs " + MiscUtils.toString(nativeLibraries));
}
}
return addr;
}
public long dynamicLookupFunction(String funcName) {
if(!isToolLibLoaded() || null==funcName) {
if(DEBUG_LOOKUP && !isToolLibLoaded()) {
System.err.println("Lookup: <" + funcName + "> ** FAILED ** Tool native library not loaded");
}
return 0;
}
if(toolGetProcAddressFuncNameSet.contains(funcName)) {
return toolGetProcAddressHandle;
}
long addr = 0;
if(0 != toolGetProcAddressHandle) {
addr = info.toolDynamicLookupFunction(toolGetProcAddressHandle, funcName);
if(DEBUG_LOOKUP) {
if(0!=addr) {
System.err.println("Lookup-Tool: <"+funcName+"> 0x"+Long.toHexString(addr));
}
}
}
if(0==addr) {
addr = dynamicLookupFunctionOnLibs(funcName);
}
return addr;
}
/** Inherit access */
static class GlueJNILibLoaderBase extends JNILibLoaderBase {
protected static synchronized boolean loadLibrary(String libname, boolean ignoreError) {
return JNILibLoaderBase.loadLibrary(libname, ignoreError);
}
}
}
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