Jdb_tbuf Class Reference

#include <jdb_tbuf.h>

Inheritance diagram for Jdb_tbuf:

List of all members.


Public Types
enum	{ Event = 1, Result = 2 }
Static Public Member Functions
static Tracebuffer_status *const	status ()
static void	clear_tbuf ()
	Clear tracebuffer.
static Tb_entry *	new_entry ()
	Return pointer to new tracebuffer entry.
static void	commit_entry ()
	Commit tracebuffer entry.
static Mword	unfiltered_entries ()
	Return number of entries currently allocated in tracebuffer.
static Mword	entries ()
static Mword	max_entries ()
	Return maximum number of entries in tracebuffer.
static void	max_entries (Mword num)
	Set maximum number of entries in tracebuffer.
static int	event_valid (Mword idx)
	Check if event is valid.
static Tb_entry *	unfiltered_lookup (Mword idx)
	Return pointer to tracebuffer event.
static Tb_entry *	lookup (Mword look_idx)
	Return pointer to tracebuffer event.
static Mword	unfiltered_idx (Tb_entry *e)
static Mword	idx (Tb_entry *e)
	Tb_entry => tracebuffer index.
static Tb_entry *	search (Mword nr)
	Event number => Tb_entry.
static Mword	search_to_idx (Mword nr)
	Event number => tracebuffer index.
static int	event (Mword idx, Mword number, Unsigned32 kclock, Unsigned64 tsc, Unsigned32 pmc1, Unsigned32 *pmc2)
	Return some information about log event.
static Tb_entry *	ipc_pair_event (Mword idx, Unsigned8 *type)
	Search the paired event to an ipc event or ipc result event.
static Tb_entry *	pf_pair_event (Mword idx, Unsigned8 *type)
	Search the paired event to a pagefault / result event.
static int	diff_tsc (Mword idx, Signed64 *delta)
	Get difference CPU cycles between event idx and event idx+1.
static int	diff_pmc (Mword idx, Mword nr, Signed32 *delta)
	Get difference perfcnt cycles between event idx and event idx+1.
static void	enable_filter ()
static void	disable_filter ()
Static Public Attributes
static void(*	direct_log_entry )(Tb_entry , const char ) = &direct_log_dummy
Static Protected Member Functions
static Tb_entry_fit *const	buffer ()
Static Protected Attributes
static Tb_entry_fit *	tbuf_act
static Tb_entry_fit *	tbuf_max
static Mword	_entries
static Mword	_max_entries
static Mword	_filter_enabled
static Mword	number
static Mword	count_mask1
static Mword	count_mask2
static Observer *	observer

Member Enumeration Documentation

anonymous enum

Enumeration values:

Event

Result

Member Function Documentation

Tb_entry_fit *const Jdb_tbuf::buffer ( ) [inline, static, protected]

void Jdb_tbuf::clear_tbuf ( ) [static]

Clear tracebuffer.

void Jdb_tbuf::commit_entry ( ) [static]

Commit tracebuffer entry.

int Jdb_tbuf::diff_pmc ( Mword idx,

Mword nr,

Signed32 * delta

) [static]

Get difference perfcnt cycles between event idx and event idx+1.

Parameters:

idx position of first event in tracebuffer

nr number of perfcounter (0=first, 1=second)

Return values:

difference in perfcnt cycles

Returns:
0 if something wrong, 1 if everything ok

int Jdb_tbuf::diff_tsc ( Mword idx,

Signed64 * delta

) [static]

Get difference CPU cycles between event idx and event idx+1.

Parameters:

idx position of first event in tracebuffer

Return values:

difference in CPU cycles

Returns:
0 if something wrong, 1 if everything ok

void Jdb_tbuf::disable_filter ( ) [inline, static]

void Jdb_tbuf::enable_filter ( ) [inline, static]

Mword Jdb_tbuf::entries ( ) [static]

int Jdb_tbuf::event ( Mword idx,

Mword * number,

Unsigned32 * kclock,

Unsigned64 * tsc,

Unsigned32 * pmc1,

Unsigned32 * pmc2

) [static]

Return some information about log event.

Parameters:

idx number of event to determine the info

Return values:

number event number

tsc event value of CPU cycles

pmc event value of perf counter cycles

Returns:
0 if something wrong, 1 if everything ok

int Jdb_tbuf::event_valid ( Mword idx ) [inline, static]

Check if event is valid.

Parameters:

idx position of event in tracebuffer

Returns:
0 if not valid, 1 if valid

Mword Jdb_tbuf::idx ( Tb_entry * e ) [static]

Tb_entry => tracebuffer index.

Tb_entry * Jdb_tbuf::ipc_pair_event ( Mword idx,

Unsigned8 * type

) [static]

Search the paired event to an ipc event or ipc result event.

Parameters:

idx number of event to search the pair event for

Return values:

type type of pair event

Returns:
number of pair event

Tb_entry * Jdb_tbuf::lookup ( Mword look_idx ) [static]

Return pointer to tracebuffer event.
Don't count hidden events.
Parameters:

position of event in tracebuffer: 0 is last event, 1 the event before and so on

Returns:
pointer to tracebuffer event
event with idx == 0 is the last event queued in event with idx == 1 is the event before

void Jdb_tbuf::max_entries ( Mword num ) [inline, static]

Set maximum number of entries in tracebuffer.

Mword Jdb_tbuf::max_entries ( ) [inline, static]

Return maximum number of entries in tracebuffer.

Returns:
number of entries

Tb_entry * Jdb_tbuf::new_entry ( ) [static]

Return pointer to new tracebuffer entry.

Tb_entry * Jdb_tbuf::pf_pair_event ( Mword idx,

Unsigned8 * type

) [static]

Search the paired event to a pagefault / result event.

Parameters:

idx position of event in tracebuffer to search the pair event for

Return values:

type type of pair event

Returns:
number of pair event

Tb_entry * Jdb_tbuf::search ( Mword nr ) [inline, static]

Event number => Tb_entry.

Mword Jdb_tbuf::search_to_idx ( Mword nr ) [static]

Event number => tracebuffer index.

Parameters:

nr number of event

Returns:
tracebuffer index of event which has the number nr or -1 if there is no event with this number or -2 if the event is currently hidden.

Tracebuffer_status *const Jdb_tbuf::status ( ) [inline, static]

Mword Jdb_tbuf::unfiltered_entries ( ) [inline, static]

Return number of entries currently allocated in tracebuffer.

Returns:
number of entries

Mword Jdb_tbuf::unfiltered_idx ( Tb_entry * e ) [static]

Tb_entry * Jdb_tbuf::unfiltered_lookup ( Mword idx ) [static]

Return pointer to tracebuffer event.

Parameters:

position of event in tracebuffer: 0 is last event, 1 the event before and so on

Returns:
pointer to tracebuffer event
event with idx == 0 is the last event queued in event with idx == 1 is the event before