Collects, serializes and deserializes system-wide statistics. More...

#include <StatsSystem.h>

Inheritance diagram for Hypertable::StatsSystem:

Collaboration diagram for Hypertable::StatsSystem:

Public Types
enum	Category { CPUINFO = 0x0001, CPU = 0x0002, LOADAVG = 0x0004, MEMORY = 0x0008, DISK = 0x0010, SWAP = 0x0020, NETINFO = 0x0040, NET = 0x0080, OSINFO = 0x0100, PROCINFO = 0x0200, PROC = 0x0400, FS = 0x0800, TERMINFO = 0x1000 }
	All statistics categories that are provided by this class. More...

Public Member Functions
	StatsSystem ()
	Default constructor; creates an empty object. More...

	StatsSystem (int32_t categories)
	Constructor; collects the specified categories. More...

	StatsSystem (int32_t categories, std::vector< String > &dirs)
	Constructor; collects the specified categories. More...

void	add_categories (int32_t categories)
	Adds more categories to the already existing categories. More...

void	add_categories (int32_t categories, std::vector< String > &dirs)
	Adds more categories and data directories. More...

void	refresh ()
	Refreshes the statistics. More...

bool	operator== (const StatsSystem &other) const
	Equal operator. More...

bool	operator!= (const StatsSystem &other) const
	Not Equal operator. More...

Public Member Functions inherited from Hypertable::StatsSerializable
	StatsSerializable (uint16_t _id, uint8_t _group_count)
	Constructor; creates a new object with an ID and a number of groups. More...

	StatsSerializable (const StatsSerializable &other)
	Copy constructor. More...

StatsSerializable &	operator= (const StatsSerializable &other)
	Assignment operator. More...

size_t	encoded_length () const
	Returns the encoded length of this object. More...

void	encode (uint8_t **bufp) const
	Encodes the statistics to a serialized buffer. More...

void	decode (const uint8_t *bufp, size_t remainp)
	Deserializes this object from a buffer. More...

bool	operator== (const StatsSerializable &other) const
	Equal operator. More...

bool	operator!= (const StatsSerializable &other) const
	Not Equal operator. More...

Public Attributes
struct CpuInfo	cpu_info
	CPU information (vendor, model, cores, cache sizes etc) More...

struct CpuStat	cpu_stat
	CPU statistics (user load, system load, idle etc) More...

struct LoadAvgStat	loadavg_stat
	Load average normalized over number of cores. More...

struct MemStat	mem_stat
	Memory statistics (total size, free space, used etc) More...

struct SwapStat	swap_stat
	Swapping statistics (page in, page out etc) More...

struct NetInfo	net_info
	Network information (host name, primary interface, gateway etc) More...

struct NetStat	net_stat
	Network statistics (transfer rates, receiving rate etc) More...

struct OsInfo	os_info
	OS information (name, architecture, version etc) More...

struct ProcInfo	proc_info
	Process information (pid, user, working directory etc) More...

struct ProcStat	proc_stat
	Process statistics (CPU user time, system time, vm size etc) More...

struct TermInfo	term_info
	Terminal information (number of lines, number of columns etc) More...

std::vector< struct DiskStat >	disk_stat
	Per-Disk statistics (read-rate, write-rate, etc) More...

std::vector< struct FsStat >	fs_stat
	Filesystem statistics (free space, used space, aggregate files etc) More...

Protected Member Functions
virtual size_t	encoded_length_group (int group) const
	Returns the encoded length of a statistics group. More...

virtual void	encode_group (int group, uint8_t **bufp) const
	Serializes a statistics group to memory. More...

virtual void	decode_group (int group, uint16_t len, const uint8_t *bufp, size_t remainp)
	Deserializes a statistics group from memory. More...

Private Attributes
int32_t	m_categories

Additional Inherited Members
Protected Types inherited from Hypertable::StatsSerializable
enum	Identifier { SYSTEM = 1, RANGE = 2, TABLE = 3, RANGE_SERVER = 4 }
	Statistics identifer; assigned in constructor. More...

Protected Attributes inherited from Hypertable::StatsSerializable
uint16_t	id
	The statistics ID. More...

uint8_t	group_count
	Number of groups in group_ids. More...

uint8_t	group_ids [32]
	The actual group IDs. More...

Detailed Description

Collects, serializes and deserializes system-wide statistics.

Definition at line 43 of file StatsSystem.h.

Constructor & Destructor Documentation

Hypertable::StatsSystem::StatsSystem ( )

inline

Default constructor; creates an empty object.

Definition at line 63 of file StatsSystem.h.

StatsSystem::StatsSystem ( int32_t categories )

Constructor; collects the specified categories.

Parameters

categories bit-wise ORed categories

Definition at line 55 of file StatsSystem.cc.

StatsSystem::StatsSystem	(	int32_t	categories,
		std::vector< String > &	dirs
	)

Constructor; collects the specified categories.

Parameters

categories	bit-wise ORed categories
dirs	Vector of data directories which are monitored

Definition at line 62 of file StatsSystem.cc.

Member Function Documentation

void StatsSystem::add_categories ( int32_t categories )

Adds more categories to the already existing categories.

Definition at line 69 of file StatsSystem.cc.

void StatsSystem::add_categories	(	int32_t	categories,
		std::vector< String > &	dirs
	)

Adds more categories and data directories.

Definition at line 117 of file StatsSystem.cc.

void StatsSystem::decode_group	(	int	group,
		uint16_t	len,
		const uint8_t **	bufp,
		size_t *	remainp
	)

protectedvirtual

Deserializes a statistics group from memory.

Implements Hypertable::StatsSerializable.

Definition at line 427 of file StatsSystem.cc.

void StatsSystem::encode_group	(	int	group,
		uint8_t **	bufp
	)		const

protectedvirtual

Serializes a statistics group to memory.

Implements Hypertable::StatsSerializable.

Definition at line 300 of file StatsSystem.cc.

size_t StatsSystem::encoded_length_group ( int group ) const

protectedvirtual

Returns the encoded length of a statistics group.

Implements Hypertable::StatsSerializable.

Definition at line 225 of file StatsSystem.cc.

bool Hypertable::StatsSystem::operator!= ( const StatsSystem & other ) const

inline

Not Equal operator.

Definition at line 92 of file StatsSystem.h.

bool StatsSystem::operator== ( const StatsSystem & other ) const

Equal operator.

Definition at line 168 of file StatsSystem.cc.

void StatsSystem::refresh ( )

Refreshes the statistics.

Definition at line 141 of file StatsSystem.cc.

Member Data Documentation

struct CpuInfo Hypertable::StatsSystem::cpu_info

CPU information (vendor, model, cores, cache sizes etc)

Definition at line 97 of file StatsSystem.h.

struct CpuStat Hypertable::StatsSystem::cpu_stat

CPU statistics (user load, system load, idle etc)

Definition at line 100 of file StatsSystem.h.

std::vector<struct DiskStat> Hypertable::StatsSystem::disk_stat

Per-Disk statistics (read-rate, write-rate, etc)

Definition at line 130 of file StatsSystem.h.

std::vector<struct FsStat> Hypertable::StatsSystem::fs_stat

Filesystem statistics (free space, used space, aggregate files etc)

Definition at line 133 of file StatsSystem.h.

struct LoadAvgStat Hypertable::StatsSystem::loadavg_stat

Load average normalized over number of cores.

Definition at line 103 of file StatsSystem.h.

int32_t Hypertable::StatsSystem::m_categories

private

Definition at line 147 of file StatsSystem.h.

struct MemStat Hypertable::StatsSystem::mem_stat

Memory statistics (total size, free space, used etc)

Definition at line 106 of file StatsSystem.h.

struct NetInfo Hypertable::StatsSystem::net_info

Network information (host name, primary interface, gateway etc)

Definition at line 112 of file StatsSystem.h.

struct NetStat Hypertable::StatsSystem::net_stat

Network statistics (transfer rates, receiving rate etc)

Definition at line 115 of file StatsSystem.h.

struct OsInfo Hypertable::StatsSystem::os_info

OS information (name, architecture, version etc)

Definition at line 118 of file StatsSystem.h.

struct ProcInfo Hypertable::StatsSystem::proc_info

Process information (pid, user, working directory etc)

Definition at line 121 of file StatsSystem.h.

struct ProcStat Hypertable::StatsSystem::proc_stat

Process statistics (CPU user time, system time, vm size etc)

Definition at line 124 of file StatsSystem.h.

struct SwapStat Hypertable::StatsSystem::swap_stat

Swapping statistics (page in, page out etc)

Definition at line 109 of file StatsSystem.h.

struct TermInfo Hypertable::StatsSystem::term_info

Terminal information (number of lines, number of columns etc)

Definition at line 127 of file StatsSystem.h.

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

/home/doug/src/hypertable/src/cc/Common/StatsSystem.h
/home/doug/src/hypertable/src/cc/Common/StatsSystem.cc

Public Types

Public Member Functions

Public Attributes

Protected Member Functions

Private Attributes

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation