org.apache.tomcat.jni.OS Maven / Gradle / Ivy
/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.tomcat.jni;
/** OS
*
* @author Mladen Turk
* @version $Id: OS.java 939309 2010-04-29 13:54:26Z kkolinko $
*/
public class OS {
/* OS Enums */
private static final int UNIX = 1;
private static final int NETWARE = 2;
private static final int WIN32 = 3;
private static final int WIN64 = 4;
private static final int LINUX = 5;
private static final int SOLARIS = 6;
private static final int BSD = 7;
private static final int MACOSX = 8;
public static final int LOG_EMERG = 1;
public static final int LOG_ERROR = 2;
public static final int LOG_NOTICE = 3;
public static final int LOG_WARN = 4;
public static final int LOG_INFO = 5;
public static final int LOG_DEBUG = 6;
/**
* Check for OS type.
* @param type OS type to test.
*/
private static native boolean is(int type);
public static final boolean IS_UNIX = is(UNIX);
public static final boolean IS_NETWARE = is(NETWARE);
public static final boolean IS_WIN32 = is(WIN32);
public static final boolean IS_WIN64 = is(WIN64);
public static final boolean IS_LINUX = is(LINUX);
public static final boolean IS_SOLARIS = is(SOLARIS);
public static final boolean IS_BSD = is(BSD);
public static final boolean IS_MACOSX = is(MACOSX);
/**
* Get the name of the system default character set.
* @param pool the pool to allocate the name from, if needed
*/
public static native String defaultEncoding(long pool);
/**
* Get the name of the current locale character set.
* Defers to apr_os_default_encoding if the current locale's
* data can't be retrieved on this system.
* @param pool the pool to allocate the name from, if needed
*/
public static native String localeEncoding(long pool);
/**
* Generate random bytes.
* @param buf Buffer to fill with random bytes
* @param len Length of buffer in bytes
*/
public static native int random(byte [] buf, int len);
/**
* Gather system info.
*
* On exit the inf array will be filled with:
* inf[0] - Total usable main memory size
* inf[1] - Available memory size
* inf[2] - Total page file/swap space size
* inf[3] - Page file/swap space still available
* inf[4] - Amount of shared memory
* inf[5] - Memory used by buffers
* inf[6] - Memory Load
*
* inf[7] - Idle Time in microseconds
* inf[8] - Kernel Time in microseconds
* inf[9] - User Time in microseconds
*
* inf[10] - Process creation time (apr_time_t)
* inf[11] - Process Kernel Time in microseconds
* inf[12] - Process User Time in microseconds
*
* inf[13] - Current working set size.
* inf[14] - Peak working set size.
* inf[15] - Number of page faults.
*
* @param inf array that will be filled with system information.
* Array length must be at least 16.
*/
public static native int info(long [] inf);
/**
* Expand environment variables.
* @param str String to expand
* @return Expanded string with replaced environment variables.
*/
public static native String expand(String str);
/**
* Initialize system logging.
* @param domain String that will be prepended to every message
*/
public static native void sysloginit(String domain);
/**
* Log message.
* @param level Log message severity. See LOG_XXX enums.
* @param message Message to log
*/
public static native void syslog(int level, String message);
}