machine.h

unix下的各种类行主机下的top原码

/*
 *  This file defines the interface between top and the machine-dependent
 *  module.  It is NOT machine dependent and should not need to be changed
 *  for any specific machine.
 */
#include "utils.h"
/*
 * the statics struct is filled in by machine_init
 */
 /*下面是os.h的内容*/
#include <sys/types.h>
#include <sys/param.h>	/* This defines BSD */
#if defined(BSD) && !defined(BSD4_4) && !defined(__osf__)
# include <stdio.h>
# include <strings.h>
# define strchr(a, b)		index((a), (b))
# define strrchr(a, b)		rindex((a), (b))
# define memcpy(a, b, c)	bcopy((b), (a), (c))
# define memzero(a, b)		bzero((a), (b))
# define memcmp(a, b, c)	bcmp((a), (b), (c))
#if defined(NeXT)
  typedef void sigret_t;
#else
  typedef int sigret_t;
#endif

/* system routines that don't return int */
char *getenv();
caddr_t malloc();

#else 
# include <stdio.h>
# define setbuffer(f, b, s)	setvbuf((f), (b), (b) ? _IOFBF : _IONBF, (s))
# include <string.h>
# include <memory.h>
# include <stdlib.h>
# define memzero(a, b)		memset((a), 0, (b))
  typedef void sigret_t;
#endif

/* some systems declare sys_errlist in stdio.h! */
#if defined(__NetBSD__) || defined(__FreeBSD__)
#if !defined(__m68k__)
#  if !defined(__NetBSD132__)
#define SYS_ERRLIST_DECLARED
#  endif	/* __NetBSD132__ */
#endif
#endif

 /*下面是top.h的内容*/
 /*
 *  Top - a top users display for Berkeley Unix
 *
 *  General (global) definitions
 */

/* Current major version number */
#define VERSION		3

/* Number of lines of header information on the standard screen */
#define Header_lines	6

/* Maximum number of columns allowed for display */
#define MAX_COLS	128

/* Log base 2 of 1024 is 10 (2^10 == 1024) */
#define LOG1024		10

char *itoa();
char *itoa7();

char *version_string();

/* Special atoi routine returns either a non-negative number or one of: */
#define Infinity	-1
#define Invalid		-2

/* maximum number we can have */
#define Largest		0x7fffffff

/*
 * The entire display is based on these next numbers being defined as is.
 */

#define NUM_AVERAGES    3

/****************/
 
struct statics
{
    char **procstate_names;
    char **cpustate_names;
    char **memory_names;
#ifdef ORDER
    char **order_names;
#endif
};

/*
 * the system_info struct is filled in by a machine dependent routine.
 */

#ifdef p_active     /* uw7 define macro p_active */
#define P_ACTIVE p_pactive
#else
#define P_ACTIVE p_active
#endif

struct system_info
{
    int    last_pid;
    double load_avg[NUM_AVERAGES];
    int    p_total;
    int    P_ACTIVE;     /* number of procs considered "active" */
    int    *procstates;
    int    *cpustates;
    int    *memory;
};

/* cpu_states is an array of percentages * 10.  For example, 
   the (integer) value 105 is 10.5% (or .105).
 */

/*
 * the process_select struct tells get_process_info what processes we
 * are interested in seeing
 */

struct process_select
{
    int idle;		/* show idle processes */
    int system;		/* show system processes */
    int uid;		/* only this uid (unless uid == -1) */
    char *command;	/* only this command (unless == NULL) */
};

/* routines defined by the machine dependent module */

char *format_header();
char *format_next_process();

/* non-int routines typically used by the machine dependent module */
char *printable();