mach_param.h   [plain text]


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/*
 */
/*
 *	File:	kern/mach_param.h
 *	Author:	Avadis Tevanian, Jr., Michael Wayne Young
 *	Date:	1986
 *
 *	Mach system sizing parameters
 *
 */

#ifdef	XNU_KERNEL_PRIVATE

#ifndef	_KERN_MACH_PARAM_H_
#define _KERN_MACH_PARAM_H_

extern int thread_max, task_threadmax, task_max;


#define THREAD_CHUNK	64		/* Allocation chunk */
#define TASK_CHUNK		64		/* Allocation chunk */

#define PORT_MAX	((task_max * 3 + thread_max)	/* kernel */ \
				+ (thread_max * 2)	/* user */ \
				+ 40000)		/* slop for objects */
					/* Number of ports, system-wide */

#define SET_MAX		(task_max + (thread_max * 2) + 200)
					/* Max number of port sets */

#define	SPACE_MAX	(task_max + 5)	/* Max number of IPC spaces */

#define SEMAPHORE_MAX   (PORT_MAX >> 1)	/* Maximum number of semaphores */

#endif	/* _KERN_MACH_PARAM_H_ */

#endif	/* XNU_KERNEL_PRIVATE */