show_bdbuf.c File Reference

Enable the Monitor to Show bdbuf Information. More...

#include <rtems.h>
#include <rtems/monitor.h>
#include <rtems/bdbuf.h>
#include <string.h>
#include <ctype.h>
#include <stdio.h>
#include <rtems/libio.h>
#include <inttypes.h>

Data Structures
struct	show_bdbuf_filter_t
struct	show_bdbuf_selector_t
struct	show_bdbuf_bdbuf_info_t

Macros
#define	DISABLE_PREEMPTION(key)
#define	ENABLE_PREEMPTION(key)
#define	ARRAY_CNT(arr)   (sizeof((arr))/sizeof((arr)[0]))

Typedefs
typedef rtems_mode	preemption_key_t

Enumerations
enum	bdbuf_chain_identifier_t { bdbuf_chain_ident_none, bdbuf_chain_ident_free, bdbuf_chain_ident_lru, bdbuf_chain_ident_mod }

Functions
rtems_status_code	rtems_bdbuf_show_follow_chain_node_to_head (const Chain_Node *the_node, Chain_Control **the_head)
rtems_status_code	rtems_bdbuf_show_determine_chain_of_bdbuf (const bdbuf_buffer *the_bdbuf, const bdbuf_pool *curr_pool, bdbuf_chain_identifier_t *chn_ident)
rtems_status_code	rtems_bdbuf_show_getargs (int argc, char **argv, show_bdbuf_filter_t *filter, show_bdbuf_selector_t *selector)
rtems_status_code	rtems_bdbuf_show_get_bufpool (struct bdbuf_pool **pool_base_pptr, int *pool_cnt_ptr)
rtems_status_code	rtems_bdbuf_show_pool_header (int pool_idx, bdbuf_pool *pool_ptr)
rtems_status_code	rtems_show_bdbuf_get_bdbuf_info (const bdbuf_buffer *the_bdbuf, int bdbuf_idx, const bdbuf_pool *curr_pool, show_bdbuf_bdbuf_info_t *bdbuf_info)
rtems_status_code	rtems_show_bdbuf_match_filter (const show_bdbuf_bdbuf_info_t *bdbuf_info, const show_bdbuf_filter_t *filter, bool *is_match)
rtems_status_code	rtems_show_bdbuf_print_wait_chain (bdbuf_buffer *the_bdbuf)
rtems_status_code	rtems_show_bdbuf_print (const show_bdbuf_bdbuf_info_t *bdbuf_info, show_bdbuf_selector_t *selector, bool print_header)
void	rtems_bdbuf_show_fnc (int argc, char **argv, rtems_monitor_command_arg_t *command_arg, bool verbose)
rtems_status_code	rtems_bdbuf_show_init (void)

Detailed Description

Enable the Monitor to Show bdbuf Information.

This module inspects the bdbuf data structures, assuming they are static, but in fact they are used very dynamically. Therefore the results show MAY BE INCORRECT in some cases. And, to cure this a bit, this module may block preemption for a rather long time and therefore it may BREAK THE REALTIME BEHAVIOUR OF YOUR SYSTEM (when in use)

Macro Definition Documentation

DISABLE_PREEMPTION

#define DISABLE_PREEMPTION

(

key

)

Value:

do {                                                               \
        rtems_task_mode(RTEMS_NO_PREEMPT, RTEMS_PREEMPT_MASK, &(key)); \
    } while (0)

ENABLE_PREEMPTION

#define ENABLE_PREEMPTION

(

key

)

Value:

do {                                                        \
        rtems_mode temp;                                        \
        rtems_task_mode((key), RTEMS_PREEMPT_MASK, &temp);      \
    } while (0)