import java.io.FileOutputStream;
import java.io.InputStream;
+import java.io.IOException;
import java.io.OutputStream;
import java.io.File;
import java.nio.file.Files;
public static void nativeInit() {
if (isNativeInited)
return;
-
+
if (System.getProperty("os.name").toLowerCase().startsWith("win"))
NativeLib.nativeInit("winpthread-1");
NativeLib.nativeInit("simgrid");
- NativeLib.nativeInit("surf-java");
NativeLib.nativeInit("simgrid-java");
isNativeInited = true;
}
try {
/* Prefer the version of the library bundled into the jar file and use it */
loadLib(name);
- } catch (SimGridLibNotFoundException e) {
+ } catch (LinkageException embeededException) {
/* If not found, try to see if we can find a version on disk */
try {
System.loadLibrary(name);
- } catch (UnsatisfiedLinkError e2) {
- System.err.println("Cannot load the bindings to the "+name+" library in path "+getPath());
- e.printStackTrace();
- System.err.println("This jar file does not seem to fit your system, and I cannot find an installation of SimGrid.");
- System.exit(1);
+ } catch (UnsatisfiedLinkError systemException) {
+ if (! name.equals("boost_context")) { // Ignore when we cannot load boost_context
+
+ System.err.println("\nCannot load the bindings to the "+name+" library in path "+getPath());
+ Throwable cause = embeededException.getCause();
+ if (cause instanceof java.lang.UnsatisfiedLinkError) {
+ if (cause.getMessage().matches(".*libcgraph.so.*"))
+ System.err.println("HINT: Try to install the libcgraph package (sudo apt-get install libcgraph).");
+ else if (cause.getMessage().matches(".*libboost_context.so.*"))
+ System.err.println("HINT: Try to install the boost-context package (sudo apt-get install libboost-context-dev).");
+ else
+ System.err.println("Try to install the missing dependencies, which name should appear above.");
+ } else {
+ System.err.println("This jar file does not seem to fit your system, and no usable SimGrid installation found on disk.");
+ }
+ System.err.println();
+ cause.printStackTrace();
+ System.exit(1);
+ }
}
}
}
public static String getPath() {
+ // Inspiration: https://github.com/xerial/snappy-java/blob/develop/src/main/java/org/xerial/snappy/OSInfo.java
String prefix = "NATIVE";
String os = System.getProperty("os.name");
String arch = System.getProperty("os.arch");
return prefix + "/" + os + "/" + arch + "/";
}
static Path tempDir = null;
- private static void loadLib (String name) throws SimGridLibNotFoundException {
+ private static void loadLib (String name) throws LinkageException {
String Path = NativeLib.getPath();
String filename=name;
in = NativeLib.class.getClassLoader().getResourceAsStream(Path+filename);
}
if (in == null) {
- throw new SimGridLibNotFoundException("Cannot find library "+name+" in path "+Path+". Sorry, but this jar does not seem to be usable on your machine.");
+ throw new LinkageException("Cannot find library "+name+" in path "+Path+". Sorry, but this jar does not seem to be usable on your machine.");
}
try {
// We must write the lib onto the disk before loading it -- stupid operating systems
in.close();
out.close();
System.load(fileOut.getAbsolutePath());
- } catch (Exception e) {
- System.err.println("Error while extracting the native library from the jar: ");
- e.printStackTrace();
- throw new SimGridLibNotFoundException("Cannot load the bindings to the "+name+" library in path "+getPath(), e);
+ } catch (SecurityException|UnsatisfiedLinkError|IOException e) {
+ throw new LinkageException("Cannot load the bindings to the "+name+" library in path "+getPath(), e);
}
}
public FileCleaner(File dir) {
this.dir = dir;
}
+ @Override
public void run() {
try {
for (File f : dir.listFiles())
}
}
-class SimGridLibNotFoundException extends Exception {
+class LinkageException extends Exception {
private static final long serialVersionUID = 1L;
- public SimGridLibNotFoundException(String msg) {
+ public LinkageException(String msg) {
super(msg);
}
- public SimGridLibNotFoundException(String msg, Exception e) {
+ public LinkageException(String msg, Throwable e) {
super(msg,e);
}
-}
\ No newline at end of file
+}