+++ /dev/null
-// System.java - System-specific info.
-
-/* Copyright (C) 1998, 1999, 2000, 2001 Free Software Foundation
-
- This file is part of libgcj.
-
-This software is copyrighted work licensed under the terms of the
-Libgcj License. Please consult the file "LIBGCJ_LICENSE" for
-details. */
-
-package java.lang;
-
-import java.io.FileDescriptor;
-import java.io.FileInputStream;
-import java.io.FileOutputStream;
-import java.io.FilterInputStream;
-import java.io.InputStream;
-import java.io.PrintStream;
-import java.io.BufferedInputStream;
-import java.io.BufferedOutputStream;
-import java.util.Properties;
-import java.util.PropertyPermission;
-import java.util.TimeZone;
-
-/**
- * @author Tom Tromey <tromey@cygnus.com>
- * @date August 27, 1998
- */
-
-/* Written using "Java Class Libraries", 2nd edition, ISBN 0-201-31002-3
- * "The Java Language Specification", ISBN 0-201-63451-1
- * plus online API docs for JDK 1.2 beta from http://www.javasoft.com.
- * Status: 1.1. Some 1.2 methods missing. Properties code not fully
- * implemented.
- */
-
-public final class System
-{
- public static native void arraycopy (Object src, int srcOffset,
- Object dst, int dstOffset,
- int count);
-
- public static native long currentTimeMillis ();
-
- // FIXME: When merging with Classpath, remember to remove the call to
- // getDefaultTimeZoneId from java.util.Timezone.
- private static native String getSystemTimeZone ();
-
- // Get the System Timezone as reported by the OS. It should be in
- // the form PST8PDT so we'll need to parse it and check that it's valid.
- // The result is used to set the user.timezone property in init_properties.
- // FIXME: Using the code from Classpath for generating the System
- // Timezone IMO is suboptimal because it ignores whether the rules for
- // DST match up.
- private static String getDefaultTimeZoneId ()
- {
- String sysTimeZoneId = getSystemTimeZone ();
-
- // Check if this is a valid timezone. Make sure the IDs match
- // since getTimeZone returns GMT if no match is found.
- TimeZone tz = TimeZone.getTimeZone (sysTimeZoneId);
- if (tz.getID ().equals (sysTimeZoneId))
- return sysTimeZoneId;
-
- // Check if the base part of sysTimeZoneId is a valid timezone that
- // matches with daylight usage and rawOffset. Make sure the IDs match
- // since getTimeZone returns GMT if no match is found.
- // First find start of GMT offset info and any Daylight zone name.
- int startGMToffset = 0;
- int sysTimeZoneIdLength = sysTimeZoneId.length();
- for (int i = 0; i < sysTimeZoneIdLength && startGMToffset == 0; i++)
- {
- if (Character.isDigit (sysTimeZoneId.charAt (i)))
- startGMToffset = i;
- }
-
- int startDaylightZoneName = 0;
- boolean usesDaylight = false;
- for (int i = sysTimeZoneIdLength - 1;
- i >= 0 && !Character.isDigit (sysTimeZoneId.charAt (i)); --i)
- {
- startDaylightZoneName = i;
- }
- if (startDaylightZoneName > 0)
- usesDaylight = true;
-
- int GMToffset = Integer.parseInt (startDaylightZoneName == 0 ?
- sysTimeZoneId.substring (startGMToffset) :
- sysTimeZoneId.substring (startGMToffset, startDaylightZoneName));
-
- // Offset could be in hours or seconds. Convert to millis.
- if (GMToffset < 24)
- GMToffset *= 60 * 60;
- GMToffset *= -1000;
-
- String tzBasename = sysTimeZoneId.substring (0, startGMToffset);
- tz = TimeZone.getTimeZone (tzBasename);
- if (tz.getID ().equals (tzBasename) && tz.getRawOffset () == GMToffset)
- {
- boolean tzUsesDaylight = tz.useDaylightTime ();
- if (usesDaylight && tzUsesDaylight || !usesDaylight && !tzUsesDaylight)
- return tzBasename;
- }
-
- // If no match, see if a valid timezone has the same attributes as this
- // and then use it instead.
- String[] IDs = TimeZone.getAvailableIDs (GMToffset);
- for (int i = 0; i < IDs.length; ++i)
- {
- // FIXME: The daylight savings rules may not match the rules
- // for the desired zone.
- boolean IDusesDaylight =
- TimeZone.getTimeZone (IDs[i]).useDaylightTime ();
- if (usesDaylight && IDusesDaylight || !usesDaylight && !IDusesDaylight)
- return IDs[i];
- }
-
- // If all else fails, return null.
- return null;
- }
-
- public static void exit (int status)
- {
- Runtime.getRuntime().exit(status);
- }
-
- public static void gc ()
- {
- Runtime.getRuntime().gc();
- }
-
- // Marked deprecated in 1.1. We implement what the JCL book says.
- public static String getenv (String name)
- {
- throw new Error ();
- }
-
- private static native void init_properties ();
-
- public static Properties getProperties ()
- {
- if (secman != null)
- secman.checkPropertiesAccess();
- if (properties == null)
- init_properties ();
- return properties;
- }
-
- public static String getProperty (String property)
- {
- if (secman != null)
- secman.checkPropertyAccess(property);
- if (properties == null)
- init_properties ();
- return properties.getProperty(property);
- }
-
- public static String getProperty (String property, String defval)
- {
- if (secman != null)
- secman.checkPropertyAccess(property);
- if (properties == null)
- init_properties ();
- return properties.getProperty(property, defval);
- }
-
- public static SecurityManager getSecurityManager ()
- {
- return secman;
- }
-
- public static native int identityHashCode (Object obj);
-
- public static void load (String pathname)
- {
- Runtime.getRuntime().load(pathname);
- }
-
- public static void loadLibrary (String libname)
- {
- Runtime.getRuntime().loadLibrary(libname);
- }
-
- public static void runFinalization ()
- {
- Runtime.getRuntime().runFinalization();
- }
-
- // Marked as deprecated in 1.2.
- public static void runFinalizersOnExit (boolean run)
- {
- Runtime.getRuntime().runFinalizersOnExit(run);
- }
-
- private static void checkSetIO ()
- {
- // In 1.1, we are supposed to call checkExec, but the argument is
- // not specified. In 1.2, we are supposed to use checkPermission,
- // which doesn't exist in 1.1.
- if (secman != null)
- secman.checkExec("");
- }
-
- public static native void setErr (PrintStream newErr);
- public static native void setIn (InputStream newIn);
- public static native void setOut (PrintStream newOut);
-
- public static void setProperties (Properties props)
- {
- if (secman != null)
- secman.checkPropertiesAccess();
- synchronized (System.class)
- {
- properties = props;
- }
- }
-
- public static String setProperty (String key, String value)
- {
- if (secman != null)
- secman.checkPermission (new PropertyPermission (key, "write"));
- if (properties == null)
- init_properties ();
- return (String) properties.setProperty (key, value);
- }
-
- // TODO 1.2.
- // public static String mapLibraryName (String libname);
-
- public static void setSecurityManager (SecurityManager s)
- {
- if (secman != null)
- secman.checkPermission(new RuntimePermission("setSecurityManager"));
- secman = s;
- }
-
- // Public data.
- public static final InputStream in = new BufferedInputStream (new FileInputStream (FileDescriptor.in));
-
- public static final PrintStream out = new PrintStream (new BufferedOutputStream (new FileOutputStream (FileDescriptor.out)), true);
-
- public static final PrintStream err = new PrintStream (new BufferedOutputStream (new FileOutputStream (FileDescriptor.err)), true);
-
- // Don't allow System objects to be made.
- private System ()
- {
- }
-
- // Private data.
- private static SecurityManager secman = null;
- private static Properties properties = null;
-}
projects / msp430-gcc.git / blobdiff