/******************************************************
The interface to the operating system
process control primitives

(c) 1995 Innobase Oy

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

#ifndef os0proc_h
#define os0proc_h

#include "univ.i"

typedef void*			os_process_t;
typedef unsigned long int	os_process_id_t;

/********************************************************************
Converts the current process id to a number. It is not guaranteed that the
number is unique. In Linux returns the 'process number' of the current
thread. That number is the same as one sees in 'top', for example. In Linux
the thread id is not the same as one sees in 'top'. */

ulint
os_proc_get_number(void);
/*====================*/
/********************************************************************
Allocates non-cacheable memory. */

void*
os_mem_alloc_nocache(
/*=================*/
			/* out: allocated memory */
	ulint	n);	/* in: number of bytes */
#ifdef notdefined
/********************************************************************
Creates a new process. */

ibool
os_process_create(
/*==============*/
	char*		name,	/* in: name of the executable to start
				or its full path name */
	char*		cmd,	/* in: command line for the starting
				process, or NULL if no command line
				specified */
	os_process_t*	proc,	/* out: handle to the process */
	os_process_id_t* id);	/* out: process id */
/**************************************************************************
Exits a process. */

void
os_process_exit(
/*============*/
	ulint	code);	/* in: exit code */
/**************************************************************************
Gets process exit code. */

ibool
os_process_get_exit_code(
/*=====================*/
				/* out: TRUE if succeed, FALSE if fail */
	os_process_t	proc,	/* in: handle to the process */
	ulint*		code);	/* out: exit code */
#endif
/********************************************************************
Sets the priority boost for threads released from waiting within the current
process. */

void
os_process_set_priority_boost(
/*==========================*/
	ibool	do_boost);	/* in: TRUE if priority boost should be done,
				FALSE if not */

#ifndef UNIV_NONINL
#include "os0proc.ic"
#endif

#endif 
