/****************************/

/* THIS IS OPEN SOURCE CODE */

/****************************/

/**

 * @file    linux-net.h

 * CVS:     $Id$

 *

 * @author  Haihang You

 *          you@cs.utk.edu

 *

 * @author  Jose Pedro Oliveira

 *          jpo@di.uminho.pt

 *

 * @ingroup papi_components

 *

 * @brief net component

 *  This file contains the source code for a component that enables

 *  PAPI-C to access network statistics through the /proc file system.

 *  This component will dynamically create a native events table for

 *  all the interfaces listed in /proc/net/dev (16 entries for each

 *  interface).

 */

#ifndef _PAPI_NET_H

#define _PAPI_NET_H

#include <unistd.h>

/*************************  DEFINES SECTION  ***********************************

 *******************************************************************************/

/* this number assumes that there will never be more events than indicated

 * 20 INTERFACES * 16 COUNTERS = 320 */

#define NET_MAX_COUNTERS 320

/** Structure that stores private information of each event */

typedef struct NET_register

{

    /* This is used by the framework.It likes it to be !=0 to do somehting */

    unsigned int selector;

} NET_register_t;

/*

 * The following structures mimic the ones used by other components. It is more

 * convenient to use them like that as programming with PAPI makes specific

 * assumptions for them.

 */

/** This structure is used to build the table of events */

typedef struct NET_native_event_entry

{

    NET_register_t resources;

    char name[PAPI_MAX_STR_LEN];

    char description[PAPI_MAX_STR_LEN];

} NET_native_event_entry_t;

typedef struct NET_reg_alloc

{

    NET_register_t ra_bits;

} NET_reg_alloc_t;

typedef struct NET_control_state

{

    long long values[NET_MAX_COUNTERS]; // used for caching

    long long lastupdate;

} NET_control_state_t;

typedef struct NET_context

{

    NET_control_state_t state;

} NET_context_t;

/*************************  GLOBALS SECTION  ***********************************

 *******************************************************************************/

#endif /* _PAPI_NET_H */

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