hotspot/src/os/aix/vm/libo4.hpp
changeset 34647 fafb32d71489
child 35594 cc13089c6327
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/src/os/aix/vm/libo4.hpp	Mon Nov 16 10:58:14 2015 +0100
@@ -0,0 +1,77 @@
+/*
+ * Copyright 2012, 2015 SAP AG. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code 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
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ *
+ */
+
+// A C++ wrapper around the libo4 porting library. The libo4 porting library
+// is a set of bridge functions into native AS/400 functionality.
+
+#ifndef OS_AIX_VM_LIBO4_HPP
+#define OS_AIX_VM_LIBO4_HPP
+
+
+class libo4 {
+public:
+
+  // Initialize the libo4 porting library.
+  // Returns true if succeeded, false if error.
+  static bool init();
+
+  // cleanup of the libo4 porting library.
+  static void cleanup();
+
+  // returns a number of memory statistics from the
+  // AS/400.
+  //
+  // Specify NULL for numbers you are not interested in.
+  //
+  // returns false if an error happened. Activate OsMisc trace for
+  // trace output.
+  //
+  static bool get_memory_info (unsigned long long* p_virt_total, unsigned long long* p_real_total,
+    unsigned long long* p_real_free, unsigned long long* p_pgsp_total, unsigned long long* p_pgsp_free);
+
+  // returns information about system load
+  // (similar to "loadavg()" under other Unices)
+  //
+  // Specify NULL for numbers you are not interested in.
+  //
+  // returns false if an error happened. Activate OsMisc trace for
+  // trace output.
+  //
+  static bool get_load_avg (double* p_avg1, double* p_avg5, double* p_avg15);
+
+  // this is a replacement for the "realpath()" API which does not really work
+  // on PASE
+  //
+  // Specify NULL for numbers you are not interested in.
+  //
+  // returns false if an error happened. Activate OsMisc trace for
+  // trace output.
+  //
+  static bool realpath (const char* file_name,
+      char* resolved_name, int resolved_name_len);
+
+};
+
+#endif // OS_AIX_VM_LIBO4_HPP
+