[Sysfence-commit] sysfence datastruct.h,NONE,1.1

[Michal S. <em...@us...>]

Update of /cvsroot/sysfence/sysfence
In directory sc8-pr-cvs1.sourceforge.net:/tmp/cvs-serv14695

Added Files:
	datastruct.h 
Log Message:
+ new data structures, (almost) all in one file


--- NEW FILE: datastruct.h ---
/*
 
  copyright (c) 2004, Michal Salaban <em...@pl...>

  This program is free software; you can redistribute it and/or modify
  it under the terms of the GNU General Public License, version 2 as
  published by the Free Software Foundation (see file COPYING for details).

  You should have received a copy of the GNU General Public License
  along with this program; if not, write to the Free Software
  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  
  $Id: datastruct.h,v 1.1 2004/05/23 20:53:01 emes Exp $
 
*/

#include    <sys/types.h>

#define     STAT_MAX_ARGS   2

#define     PROC_RUN        1
#define     PROC_SLEEP      2
#define     PROC_STOP       4
#define     PROC_ZOMBIE     8

/***************************************************************************
    All-purpose list
 ***************************************************************************/

typedef struct _sf_list {
    int                 elsize;
    void                *el;
    struct _sf_list     *next;
} sf_list;

/***************************************************************************
    Stats
 ***************************************************************************/

typedef enum {
    //      Label describing stat type
    ST_LOAD,
    ST_MEM,
    ST_SWAP,
    ST_FS,
    ST_PROC,

    ST_NONE
} sf_stat_label;

typedef enum {
    //      Label describing data type (used with void* pointers)
    DOUBLE,
    INTEGER,
    PERCENT
} sf_type;

typedef enum {
    //      Selector of value associated with resource
    VA_USED,
    VA_FREE,
    VA_AVAIL,
    VA_TOTAL,

    VA_LAST
} sf_res_state;

typedef union {
    //      Selector or option describing stat
    int             laminutes;      // load
    sf_res_state    resstat;        // resources
    int             procstates;     // processes
    sf_list         *uids;          // processes
    char            *path;          // filesystem
} sf_stat_arg;

typedef struct {
    //      Stat definition
    sf_stat_label   label;
    sf_stat_arg     arg[ STAT_MAX_ARGS ];
} sf_stat_def;

typedef struct {
    //      Value with known type
    sf_type         type;
    void            *ptr;
} sf_value;

typedef struct {
    //      Full stat (definition and value)
    sf_stat_def     stat;
    sf_value        val;
} sf_stat_value;

/***************************************************************************
    Rules
 ***************************************************************************/

typedef struct {
    //      Node (relation) of an expression
    enum {
        RELATION,
        ATOMIC
    }       type;

    void    *arg1;
    void    *arg2;
    token   op;
} sf_expression;

typedef struct {
    //      Atomic relation (between stat and threshold)
    sf_stat_def     stat;
    sf_value        thresh;
    token           op;
} sf_atomic;

typedef struct {
    //      Command to be run
    int         once;
    char        *command;
} sf_rundata;

typedef struct {
    //      Log action
    int         once;
} sf_logdata;

typedef struct {
    //      One rule
    char            *name;
    sf_expression   *expr;
    sf_rundata      *run;
    sf_logdata      *log;
    unsigned int    step;

    // indicate if expression was true after this check and previous one
    int             hit,
                    prevhit;
} sf_rule;

/***************************************************************************
    Stat values database
 ***************************************************************************/

typedef struct {
    //      Statistics of underlying filesystem in path
    char        *path;
    long int    val[ VA_LAST ];
} sf_fs_stats;

typedef struct {
    //      Main statistics database
    double      load[3];
    long int    mem[ VA_LAST ];
    long int    swap[ VA_LAST ];
    sf_list     *fs;
    void        *proc;      // NIY
} sf_database;

/* $Id: datastruct.h,v 1.1 2004/05/23 20:53:01 emes Exp $ */