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// java.lang.System
// An implementation of the Java Language Specification section 20.18
// Written by Charles Briscoe-Smith; refer to the file LEGAL for details.
package java.lang;
import java.io.InputStream;
import java.io.PrintStream;
import java.io.FileDescriptor;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.BufferedOutputStream;
import java.util.Properties;
public final class System {
private System() { }
public static InputStream in=new FileInputStream(FileDescriptor.in);
public static PrintStream out
=new PrintStream(new BufferedOutputStream(
new FileOutputStream(
FileDescriptor.out)),
true);
public static PrintStream err
=new PrintStream(new FileOutputStream(FileDescriptor.err),
true);
private static SecurityManager secMan=null;
public static SecurityManager getSecurityManager()
{
return secMan;
}
public static void setSecurityManager(SecurityManager sm)
throws SecurityException
{
if (secMan!=null) throw new SecurityException();
secMan=sm;
}
public static native long currentTimeMillis()
"struct timeval tv;"
"gettimeofday(&tv, 0L);"
"return tv.tv_sec*1000+tv.tv_usec/1000;"
;
private static Properties props;
public static Properties getProperties()
throws SecurityException
{
if (secMan!=null) secMan.checkPropertiesAccess();
if (props==null) {
props=new Properties();
props.put("java.version", "1.0-incomplete");
props.put("java.vendor", "Charles Briscoe-Smith");
props.put("java.vendor.url",
"http://alethea.ukc.ac.uk/wp?95cpb4");
props.put("java.home", "none");
props.put("java.class.version", "none");
props.put("java.class.path", "none");
props.put("os.name", "unknown");
props.put("os.arch", "unknown");
props.put("os.version", "unknown");
props.put("file.separator", "/");
props.put("path.separator", ":");
props.put("line.separator", "\n");
props.put("user.name", "unknown");
props.put("user.home", "unknown");
props.put("user.dir", "unknown");
}
return props;
}
public static void setProperties(Properties p) throws SecurityException
{
if (secMan!=null) secMan.checkPropertiesAccess();
props=p;
}
public static String getProperty(String n) throws SecurityException
{
getProperty(n, null);
}
public static String getProperty(String n, String d)
throws SecurityException
{
if (secMan!=null) secMan.checkPropertyAccess(n);
return getProperties().getProperty(n, d);
}
public static void exit(int rv) throws SecurityException
{
Runtime.getRuntime().exit(rv);
}
public static void gc()
{
Runtime.getRuntime().gc();
}
public static void runFinalization()
{
Runtime.getRuntime().runFinalization();
}
public static void load(String file)
throws SecurityException, UnsatisfiedLinkError
{
Runtime.getRuntime().load(file);
}
public static void loadLibrary(String file)
throws SecurityException, UnsatisfiedLinkError
{
Runtime.getRuntime().loadLibrary(file);
}
public static void arraycopy(Object src, int srcOff,
Object dest, int destOff, int len)
throws NullPointerException, ArrayStoreException,
IndexOutOfBoundsException
{
throw new InternalError("arraycopy() not yet implemented");
}
}
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