hotspot/src/os/aix/vm/libo4.hpp

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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 * 2 along with this work; if not, write to the Free Software Foundation,
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// 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