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Diffstat (limited to 'pki/base/osutil/src/com/netscape/osutil/LibC.java')
-rw-r--r--pki/base/osutil/src/com/netscape/osutil/LibC.java81
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
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index 000000000..0cc18b9d6
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+++ 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();
+ }
+ }
+ }
+ }
+}
+