Tracks range server memory used. More...

#include <MemoryTracker.h>

Collaboration diagram for Hypertable::MemoryTracker:

Public Member Functions
	MemoryTracker (FileBlockCache *block_cache, QueryCachePtr query_cache)
	Constructor. More...

void	add (int64_t amount)
	Add to memory used. More...

void	subtract (int64_t amount)
	Subtract to memory used. More...

int64_t	balance ()
	Return total range server memory used. More...

Private Attributes
std::mutex	m_mutex
	Mutex to serialize concurrent access More...

int64_t	m_memory_used {}
	Current range server memory used. More...

FileBlockCache *	m_block_cache
	Pointer to block cache. More...

QueryCachePtr	m_query_cache
	Pointer to query cache. More...

Detailed Description

Tracks range server memory used.

Definition at line 42 of file MemoryTracker.h.

Constructor & Destructor Documentation

Hypertable::MemoryTracker::MemoryTracker	(	FileBlockCache *	block_cache,
		QueryCachePtr	query_cache
	)

inline

Constructor.

Parameters

block_cache	Pointer to block cache
query_cache	Pointer to query cache

Definition at line 48 of file MemoryTracker.h.

Member Function Documentation

void Hypertable::MemoryTracker::add ( int64_t amount )

inline

Add to memory used.

Parameters

amount Amount of memory to add

Definition at line 53 of file MemoryTracker.h.

int64_t Hypertable::MemoryTracker::balance ( )

inline

Return total range server memory used.

This member function returns the total amount of memory used, computed as m_memory_used plus block cache memory used plus query cache memory used.

Returns: Total range server memory used

Definition at line 70 of file MemoryTracker.h.

void Hypertable::MemoryTracker::subtract ( int64_t amount )

inline

Subtract to memory used.

Parameters

amount Amount of memory to subtract

Definition at line 60 of file MemoryTracker.h.

Member Data Documentation

FileBlockCache* Hypertable::MemoryTracker::m_block_cache

private

Pointer to block cache.

Definition at line 85 of file MemoryTracker.h.

int64_t Hypertable::MemoryTracker::m_memory_used {}

private

Current range server memory used.

Definition at line 82 of file MemoryTracker.h.

std::mutex Hypertable::MemoryTracker::m_mutex

private

Mutex to serialize concurrent access

Definition at line 79 of file MemoryTracker.h.

QueryCachePtr Hypertable::MemoryTracker::m_query_cache

private

Pointer to query cache.

Definition at line 88 of file MemoryTracker.h.

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

/home/doug/src/hypertable/src/cc/Hypertable/RangeServer/MemoryTracker.h

Public Member Functions

Private Attributes

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation