/*****************************************************************************

Copyright (c) 1995, 2021, Oracle and/or its affiliates.

This program is free software; you can redistribute it and/or modify it under
the terms of the GNU General Public License, version 2.0, as published by the
Free Software Foundation.

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*****************************************************************************/

/** @file os/os0proc.cc
 The interface to the operating system
 process control primitives

 Created 9/30/1995 Heikki Tuuri
 *******************************************************/

#include "my_config.h"

#include <errno.h>
#include <stddef.h>
#include <sys/types.h>
#include "ha_prototypes.h"
#include "os0proc.h"
#include "srv0srv.h"
#include "ut0byte.h"
#include "ut0mem.h"

/** The total amount of memory currently allocated from the operating
system with os_mem_alloc_large(). */
std::atomic<ulint> os_total_large_mem_allocated{0};

/** Whether to use large pages in the buffer pool */
bool os_use_large_pages;

/** Large page size. This may be a boot-time option on some platforms */
uint os_large_page_size;

/** Converts the current process id to a number.
@return process id as a number */
ulint os_proc_get_number(void) {
#ifdef _WIN32
  return (static_cast<ulint>(GetCurrentProcessId()));
#else
  return (static_cast<ulint>(getpid()));
#endif
}
