stats.c File Reference

Include dependency graph for stats.c:


Functions
static int	CounterUpdate (vlc_object_t p_handler, counter_t p_counter, vlc_value_t val, vlc_value_t *new_val)
	Update a statistics counter, according to its type If needed, perform a bit of computation (derivative, mostly) This function must be entered with stats handler lock.
static void	TimerDump (vlc_object_t p_this, counter_t p_counter, bool)
counter_t *	stats_CounterCreate (vlc_object_t *p_this, int i_type, int i_compute_type)
	Create a statistics counter.
int	stats_Update (vlc_object_t p_this, counter_t p_counter, vlc_value_t val, vlc_value_t *val_new)
	Update a counter element with new values.
int	stats_Get (vlc_object_t p_this, counter_t p_counter, vlc_value_t *val)
	Get the aggregated value for a counter.
input_stats_t *	stats_NewInputStats (input_thread_t *p_input)
void	stats_ComputeInputStats (input_thread_t p_input, input_stats_t p_stats)
void	stats_ReinitInputStats (input_stats_t *p_stats)
void	stats_DumpInputStats (input_stats_t *p_stats)
void	stats_TimerStart (vlc_object_t p_obj, const char psz_name, unsigned int i_id)
void	stats_TimerStop (vlc_object_t *p_obj, unsigned int i_id)
void	stats_TimerDump (vlc_object_t *p_obj, unsigned int i_id)
void	stats_TimersDumpAll (vlc_object_t *p_obj)
void	stats_TimerClean (vlc_object_t *p_obj, unsigned int i_id)
void	stats_TimersCleanAll (vlc_object_t *p_obj)
void	stats_CounterClean (counter_t *p_c)

Function Documentation

static int CounterUpdate	(	vlc_object_t *	p_handler,
		counter_t *	p_counter,
		vlc_value_t	val,
		vlc_value_t *	new_val
	)			`[static]`

Update a statistics counter, according to its type If needed, perform a bit of computation (derivative, mostly) This function must be entered with stats handler lock.

Parameters:

	p_counter	the counter to update
	val	the "new" value

Returns:: an error code

References counter_sample_t::date, vlc_value_t::f_float, counter_t::i_compute_type, vlc_value_t::i_int, counter_t::i_samples, counter_t::i_type, INSERT_ELEM, counter_t::last_update, mdate(), msg_Err, counter_t::pp_samples, counter_t::psz_name, vlc_value_t::psz_string, REMOVE_ELEM, STATS_COUNTER, STATS_DERIVATIVE, STATS_LAST, STATS_MAX, STATS_MIN, counter_t::update_interval, counter_sample_t::value, VLC_EGENERIC, VLC_SUCCESS, VLC_VAR_FLOAT, VLC_VAR_INTEGER, and VLC_VAR_STRING.

Referenced by stats_Update().

void stats_ComputeInputStats	(	input_thread_t *	p_input,
		input_stats_t *	p_stats
	)

Referenced by End(), and MainLoopStatistic().

void stats_CounterClean ( counter_t * p_c )

References i, counter_t::i_samples, counter_t::pp_samples, counter_t::psz_name, and REMOVE_ELEM.

Referenced by stats_TimerClean(), and stats_TimersCleanAll().

counter_t* stats_CounterCreate	(	vlc_object_t *	p_this,
		int	i_type,
		int	i_compute_type
	)

Create a statistics counter.

Parameters:

	p_this	a VLC object
	i_type	the type of stored data. One of VLC_VAR_STRING, VLC_VAR_INTEGER, VLC_VAR_FLOAT
	i_compute_type	the aggregation type. One of STATS_LAST (always keep the last value), STATS_COUNTER (increment by the passed value), STATS_MAX (keep the maximum passed value), STATS_MIN, or STATS_DERIVATIVE (keep a time derivative of the value)

References counter_t::i_compute_type, counter_t::i_samples, counter_t::i_type, counter_t::last_update, counter_t::pp_samples, counter_t::psz_name, and counter_t::update_interval.

void stats_DumpInputStats ( input_stats_t * p_stats )

References input_stats_t::f_demux_bitrate, input_stats_t::f_input_bitrate, input_stats_t::f_send_bitrate, input_stats_t::i_demux_read_bytes, input_stats_t::i_demux_read_packets, input_stats_t::i_displayed_pictures, input_stats_t::i_lost_abuffers, input_stats_t::i_lost_pictures, input_stats_t::i_played_abuffers, input_stats_t::i_read_bytes, input_stats_t::i_read_packets, input_stats_t::lock, vlc_mutex_lock(), and vlc_mutex_unlock().

int stats_Get	(	vlc_object_t *	p_this,
		counter_t *	p_counter,
		vlc_value_t *	val
	)

Get the aggregated value for a counter.

Parameters:

	p_this	an object
	p_counter	the counter
	val	a pointer to an initialized vlc_value union. It will contain the retrieved value

Returns:: an error code

References counter_sample_t::date, vlc_value_t::f_float, counter_t::i_compute_type, vlc_value_t::i_int, counter_t::i_samples, counter_t::i_type, libvlc_stats, counter_t::pp_samples, STATS_COUNTER, STATS_DERIVATIVE, STATS_LAST, STATS_MAX, STATS_MIN, counter_sample_t::value, VLC_EGENERIC, VLC_SUCCESS, and VLC_VAR_INTEGER.

input_stats_t* stats_NewInputStats ( input_thread_t * p_input )

References input_stats_t::lock, stats_ReinitInputStats(), and vlc_mutex_init().

Referenced by Create().

void stats_ReinitInputStats ( input_stats_t * p_stats )

int stats_Update	(	vlc_object_t *	p_this,
		counter_t *	p_counter,
		vlc_value_t	val,
		vlc_value_t *	val_new
	)

Update a counter element with new values.

Parameters:

	p_this	a VLC object
	p_counter	the counter to update
	val	the vlc_value union containing the new value to aggregate. For more information on how data is aggregated,

See also:: stats_Create

Parameters:

val_new

a pointer that will be filled with new data

References CounterUpdate(), libvlc_stats, and VLC_EGENERIC.

Referenced by stats_UpdateFloat(), and stats_UpdateInteger().

static void TimerDump	(	vlc_object_t *	p_this,
		counter_t *	p_counter,
		bool	b_total
	)			`[static]`

References vlc_value_t::b_bool, counter_sample_t::date, vlc_value_t::i_int, counter_t::i_samples, mdate(), msg_Dbg, msg_Err, counter_t::pp_samples, counter_t::psz_name, and counter_sample_t::value.

Referenced by stats_TimerDump(), and stats_TimersDumpAll().

stats.c File Reference

Functions

Function Documentation