diff options
Diffstat (limited to 'pki/base/osutil/src/com/netscape/osutil/LibC.java')
-rw-r--r-- | pki/base/osutil/src/com/netscape/osutil/LibC.java | 81 |
1 files changed, 81 insertions, 0 deletions
diff --git a/pki/base/osutil/src/com/netscape/osutil/LibC.java b/pki/base/osutil/src/com/netscape/osutil/LibC.java new file mode 100644 index 000000000..0cc18b9d6 --- /dev/null +++ b/pki/base/osutil/src/com/netscape/osutil/LibC.java @@ -0,0 +1,81 @@ +// --- BEGIN COPYRIGHT BLOCK --- +// This program 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; version 2 of the License. +// +// This program 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 this program; if not, write to the Free Software Foundation, Inc., +// 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. +// +// (C) 2007 Red Hat, Inc. +// All rights reserved. +// --- END COPYRIGHT BLOCK --- +package com.netscape.osutil; + + +import java.io.*; + + +/** + * This class is a miscellanous collection of Unix system calls + * needed for process control + */ +public class LibC { + + /** + * Return the current process id of the Java VM + */ + public static native int getpid(); + + /** + * Return the parent process id of the Java VM + */ + public static native int getppid(); + + /** + * Change the detach from the current tty + */ + public static native int detach(); + + static { + boolean mNativeLibrariesLoaded = false; + if (File.separatorChar == '/') { + String os = System.getProperty( "os.name" ); + if( ( os.equals( "Linux" ) ) ) { + // Check for 64-bit library availability + // prior to 32-bit library availability. + mNativeLibrariesLoaded = + OSUtil.tryLoad( "/usr/lib64/osutil/libosutil.so" ); + if( mNativeLibrariesLoaded ) { + System.out.println( "64-bit osutil library loaded" ); + } else { + // REMINDER: May be trying to run a 32-bit app + // on 64-bit platform. + mNativeLibrariesLoaded = + OSUtil.tryLoad( "/usr/lib/osutil/libosutil.so" ); + if( mNativeLibrariesLoaded ) { + System.out.println( "32-bit osutil library loaded"); + } else { + System.out.println( "FAILED loading osutil library!"); + System.exit( -1 ); + } + } + } else { + try { + System.loadLibrary( "osutil" ); + System.out.println( "osutil library loaded" ); + mNativeLibrariesLoaded = true; + } catch( Throwable t ) { + // This is bad news, the program is doomed at this point + t.printStackTrace(); + } + } + } + } +} + |