/* System.c -- native code for java.lang.System Copyright (C) 1998, 1999, 2000, 2002 Free Software Foundation, Inc. This file is part of GNU Classpath. GNU Classpath is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2, or (at your option) any later version. GNU Classpath is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with GNU Classpath; see the file COPYING. If not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. Linking this library statically or dynamically with other modules is making a combined work based on this library. Thus, the terms and conditions of the GNU General Public License cover the whole combination. As a special exception, the copyright holders of this library give you permission to link this library with independent modules to produce an executable, regardless of the license terms of these independent modules, and to copy and distribute the resulting executable under terms of your choice, provided that you also meet, for each linked independent module, the terms and conditions of the license of that module. An independent module is a module which is not derived from or based on this library. If you modify this library, you may extend this exception to your version of the library, but you are not obligated to do so. If you do not wish to do so, delete this exception statement from your version. */ #include "java_lang_VMSystem.h" #include #include /* * Class: java_lang_VMSystem * Method: setIn0 * Signature: (Ljava/io/InputStream;)V */ JNIEXPORT void JNICALL Java_java_lang_VMSystem_setIn0 (JNIEnv * env, jclass thisClass, jobject in) { jfieldID inField = (*env)->GetStaticFieldID(env, thisClass, "in", "Ljava/io/InputStream;"); (*env)->SetStaticObjectField(env, thisClass, inField, in); } /* * Class: java_lang_VMSystem * Method: setOut0 * Signature: (Ljava/io/PrintStream;)V */ JNIEXPORT void JNICALL Java_java_lang_VMSystem_setOut0 (JNIEnv * env, jclass thisClass, jobject out) { jfieldID outField = (*env)->GetStaticFieldID(env, thisClass, "out", "Ljava/io/PrintStream;"); (*env)->SetStaticObjectField(env, thisClass, outField, out); } /* * Class: java_lang_VMSystem * Method: setErr0 * Signature: (Ljava/io/PrintStream;)V */ JNIEXPORT void JNICALL Java_java_lang_VMSystem_setErr0 (JNIEnv * env, jclass thisClass, jobject err) { jfieldID errField = (*env)->GetStaticFieldID(env, thisClass, "err", "Ljava/io/PrintStream;"); (*env)->SetStaticObjectField(env, thisClass, errField, err); } /* * Class: java_lang_VMSystem * Method: currentTimeMillis * Signature: ()J */ JNIEXPORT jlong JNICALL Java_java_lang_VMSystem_currentTimeMillis (JNIEnv * env, jclass thisClass) { /* Note: this implementation copied directly from Japhar's, by Chris Toshok. */ jlong result; struct timeval tp; if (gettimeofday(&tp, NULL) == -1) (*env)->FatalError(env, "gettimeofday call failed."); result = (jlong)tp.tv_sec; result *= 1000; result += (tp.tv_usec / 1000); return result; } JNIEXPORT jboolean JNICALL Java_java_lang_VMSystem_isWordsBigEndian (JNIEnv *env, jclass clazz) { /* Are we little or big endian? From Harbison&Steele. */ union { long l; char c[sizeof (long)]; } u; u.l = 1; return (u.c[sizeof (long) - 1] == 1); }