madara::transport::BandwidthMonitor Class Reference

Provides monitoring capability of a transport's bandwidth. More...

#include <BandwidthMonitor.h>

Collaboration diagram for madara::transport::BandwidthMonitor:

Public Member Functions
	BandwidthMonitor (time_t window_in_secs=10)
	Default constructor. More...
	BandwidthMonitor (const BandwidthMonitor &rhs)
	Copy constructor. More...
virtual	~BandwidthMonitor ()
	Destructor. More...
void	add (uint64_t size)
	Adds a message to the monitor. More...
void	add (time_t timestamp, uint64_t size)
	Adds a message to the monitor. More...
void	clear (void)
	Clears the bandwidth monitor. More...
uint64_t	get_bytes_per_second (void)
	Queries the monitor for the current bandwidth utilization per second over the past window. More...
size_t	get_number_of_messages (void)
	Returns the number of messages in the past window. More...
uint64_t	get_utilization (void)
	Queries the monitor for the current bandwidth utilization. More...
bool	is_bandwidth_violated (int64_t limit)
	Checks send and receive bandwidth against send and receive limits. More...
void	operator= (const BandwidthMonitor &rhs)
	Assignment operator. More...
void	print_utilization (void)
	Prints the number of messages and utilization within the past window. More...
void	set_window (time_t window_in_secs)
	Sets the window in seconds to measure bandwidth. More...

Protected Member Functions
time_t	update_utilization (void)
	Updates utilization for most public functions. More...

Protected Attributes
BandwidthMessages	messages_
	Map of timestamps to messages. More...
MADARA_LOCK_TYPE	mutex_
	Mutex for supporting multithreaded monitor calls. More...
uint64_t	utilization_
	Utilization. More...
time_t	window_
	Time window for useful messages to bandwidth calculations. More...

Detailed Description

Provides monitoring capability of a transport's bandwidth.

Definition at line 35 of file BandwidthMonitor.h.

Constructor & Destructor Documentation

madara::transport::BandwidthMonitor::BandwidthMonitor

(

time_t

window_in_secs = 10

)

Default constructor.

Parameters

window_in_secs

Time window to measure bandwidth usage

Definition at line 7 of file BandwidthMonitor.cpp.

madara::transport::BandwidthMonitor::BandwidthMonitor

(

const BandwidthMonitor &

rhs

)

Copy constructor.

Parameters

rhs	the value to be copied into this class

Definition at line 13 of file BandwidthMonitor.cpp.

madara::transport::BandwidthMonitor::~BandwidthMonitor ( )

virtual

Destructor.

Definition at line 20 of file BandwidthMonitor.cpp.

Member Function Documentation

void madara::transport::BandwidthMonitor::add

(

uint64_t

size

)

Adds a message to the monitor.

Parameters

size	the size of the message

Definition at line 47 of file BandwidthMonitor.cpp.

void madara::transport::BandwidthMonitor::add	(	time_t	timestamp,
		uint64_t	size
	)

Adds a message to the monitor.

Parameters

timestamp	the time the message occured
size	the size of the message

Definition at line 61 of file BandwidthMonitor.cpp.

void madara::transport::BandwidthMonitor::clear

(

void

)

Clears the bandwidth monitor.

Definition at line 108 of file BandwidthMonitor.cpp.

uint64_t madara::transport::BandwidthMonitor::get_bytes_per_second

(

void

)

Queries the monitor for the current bandwidth utilization per second over the past window.

Returns

current bandwidth utilization in bytes/s

Definition at line 98 of file BandwidthMonitor.cpp.

size_t madara::transport::BandwidthMonitor::get_number_of_messages

(

void

)

Returns the number of messages in the past window.

Returns

the number of types that have filters

Definition at line 130 of file BandwidthMonitor.cpp.

uint64_t madara::transport::BandwidthMonitor::get_utilization

(

void

)

Queries the monitor for the current bandwidth utilization.

Returns

current bandwidth utilization in bytes over the entire window (this is not bytes/s)

Definition at line 88 of file BandwidthMonitor.cpp.

bool madara::transport::BandwidthMonitor::is_bandwidth_violated

(

int64_t

limit

)

Checks send and receive bandwidth against send and receive limits.

Parameters

limit

if -1, does not check. If positive, checks against current usage

Definition at line 76 of file BandwidthMonitor.cpp.

void madara::transport::BandwidthMonitor::operator=

(

const BandwidthMonitor &

rhs

)

Assignment operator.

Parameters

rhs	the value to be copied into this class

Definition at line 25 of file BandwidthMonitor.cpp.

void madara::transport::BandwidthMonitor::print_utilization

(

void

)

Prints the number of messages and utilization within the past window.

Definition at line 116 of file BandwidthMonitor.cpp.

void madara::transport::BandwidthMonitor::set_window

(

time_t

window_in_secs

)

Sets the window in seconds to measure bandwidth.

Parameters

window_in_secs

Time window to measure bandwidth usage

Definition at line 38 of file BandwidthMonitor.cpp.

time_t madara::transport::BandwidthMonitor::update_utilization ( void  )

inlineprotected

Updates utilization for most public functions.

Returns

current time

if we have an old message, remove it from utilization and schedule a deletion

Definition at line 8 of file BandwidthMonitor.inl.

Member Data Documentation

BandwidthMessages madara::transport::BandwidthMonitor::messages_

protected

Map of timestamps to messages.

Definition at line 132 of file BandwidthMonitor.h.

MADARA_LOCK_TYPE madara::transport::BandwidthMonitor::mutex_

mutableprotected

Mutex for supporting multithreaded monitor calls.

Definition at line 127 of file BandwidthMonitor.h.

uint64_t madara::transport::BandwidthMonitor::utilization_

protected

Utilization.

Definition at line 137 of file BandwidthMonitor.h.

time_t madara::transport::BandwidthMonitor::window_

protected

Time window for useful messages to bandwidth calculations.

Definition at line 142 of file BandwidthMonitor.h.

---

The documentation for this class was generated from the following files:

• include/madara/transport/BandwidthMonitor.h
• include/madara/transport/BandwidthMonitor.cpp
• include/madara/transport/BandwidthMonitor.inl