minix/kernel/type.h

#ifndef TYPE_H
#define TYPE_H

#include <minix/com.h>

typedef _PROTOTYPE( void task_t, (void) );

/* Process table and system property related types. */ 
typedef int proc_nr_t;			/* process table entry number */
typedef short sys_id_t;			/* system process index */
typedef struct {			/* bitmap for system indexes */
  bitchunk_t chunk[BITMAP_CHUNKS(NR_SYS_PROCS)];
} sys_map_t;

struct boot_image {
  proc_nr_t proc_nr;			/* process number to use */
  task_t *initial_pc;			/* start function for tasks */
  int flags;				/* process flags */
  unsigned char quantum;		/* quantum (tick count) */
  int priority;				/* scheduling priority */
  int stksize;				/* stack size for tasks */
  short trap_mask;			/* allowed system call traps */
  bitchunk_t ipc_to;			/* send mask protection */
  int *k_calls;				/* kern. call protection */
  int nr_k_calls;
  char proc_name[P_NAME_LEN];		/* name in process table */
  endpoint_t endpoint;			/* endpoint number when started */
};

struct memory {
  phys_clicks base;			/* start address of chunk */
  phys_clicks size;			/* size of memory chunk */
};

/* The kernel outputs diagnostic messages in a circular buffer. */
struct kmessages {
  int km_next;				/* next index to write */
  int km_size;				/* current size in buffer */
  char km_buf[KMESS_BUF_SIZE];		/* buffer for messages */
};

struct randomness {
  struct {
	int r_next;				/* next index to write */
	int r_size;				/* number of random elements */
	unsigned short r_buf[RANDOM_ELEMENTS]; /* buffer for random info */
  } bin[RANDOM_SOURCES];
};

typedef unsigned long irq_policy_t;	
typedef unsigned long irq_id_t;	

typedef struct irq_hook {
  struct irq_hook *next;		/* next hook in chain */
  int (*handler)(struct irq_hook *);	/* interrupt handler */
  int irq;				/* IRQ vector number */ 
  int id;				/* id of this hook */
  int proc_nr_e;			/* (endpoint) NONE if not in use */
  irq_id_t notify_id;			/* id to return on interrupt */
  irq_policy_t policy;			/* bit mask for policy */
} irq_hook_t;

typedef int (*irq_handler_t)(struct irq_hook *);

#endif /* TYPE_H */