Mem Namespace Reference

Memory Management.

Classes
class	Allocator
class	AllocatorProxy
class	Meter
class	PoolMeter
class	PoolStats

Functions
void	Init ()
void	Stats (StoreEntry *)
void	CleanIdlePools (void *unused)
void	Report (std::ostream &)
void	PoolReport (const PoolStats *, const PoolMeter *, std::ostream &)
void	ZeroSensitiveMemory (void *dst, const size_t len)
size_t	GlobalStats (PoolStats &)

Function Documentation

CleanIdlePools()

void Mem::CleanIdlePools

(

void *

unused

)

Definition at line 247 of file old_api.cc.

References MemPools::clean(), clean_interval, eventAdd(), and MemPools::GetInstance().

Referenced by mainInitialize().

GlobalStats()

size_t Mem::GlobalStats

(

PoolStats &

stats

)

Fills a Mem::PoolStats with statistical data about overall usage for all pools.

Returns

Number of pools that have at least one object in use. Ie. number of dirty pools.

Definition at line 15 of file Stats.cc.

References MemPools::flushMeters(), MemPools::GetInstance(), Mem::PoolStats::label, Mem::PoolStats::meter, Mem::PoolStats::obj_size, Mem::PoolStats::overhead, MemPools::pools, and TheMeter.

Referenced by DumpInfo(), GetInfo(), memClean(), Report(), and snmp_prfSysFn().

Init()

void Mem::Init

(

)

Then initialize all pools.

Starting with generic buffer pools, then specific object types.

It does not hurt much to have a lot of pools since sizeof(MemPool) is small; someday we will figure out what to do with all the entries here that are never used or used only once; perhaps we should simply use malloc() for those? @?@

Definition at line 281 of file old_api.cc.

References assert, GetPool(), MEM_128B_BUF, MEM_16K_BUF, MEM_1K_BUF, MEM_256B_BUF, MEM_2K_BUF, MEM_32B_BUF, MEM_32K_BUF, MEM_4K_BUF, MEM_512B_BUF, MEM_64B_BUF, MEM_64K_BUF, MEM_8K_BUF, MEM_MAX, MEM_MD5_DIGEST, MEM_NONE, memDataInit(), Mgr::RegisterAction(), Mem::Allocator::setChunkSize(), SQUID_MD5_DIGEST_LENGTH, and Stats().

Referenced by TestUfs::commonInit(), commonInit(), fake_auth_setup(), GetPool(), TestHttp1Parser::globalSetup(), SquidMain(), MyTestProgram::startup(), and TestSBuf::testSBufConstructDestructAfterMemInit().

PoolReport()

void Mem::PoolReport	(	const PoolStats *	mp_st,
		const PoolMeter *	AllMeter,
		std::ostream &	stream
	)

Definition at line 478 of file old_api.cc.

References Mem::PoolMeter::alloc, Mem::PoolMeter::mgb_t::bytes, Mem::PoolStats::chunk_capacity, Mem::PoolStats::chunks_alloc, Mem::PoolStats::chunks_free, Mem::PoolStats::chunks_inuse, Mem::PoolStats::chunks_partial, Mem::PoolMeter::mgb_t::count, Mem::Meter::currentLevel(), Mem::PoolMeter::gb_allocated, Mem::PoolMeter::gb_oallocated, Mem::PoolMeter::gb_saved, Mem::PoolMeter::idle, int, Mem::PoolMeter::inuse, Mem::PoolStats::items_alloc, Mem::PoolStats::items_idle, Mem::PoolStats::items_inuse, Mem::PoolStats::label, Mem::PoolStats::meter, Mem::PoolStats::obj_size, Mem::Meter::peak(), Mem::Meter::peakTime(), squid_curtime, toKB, xdiv(), xm_deltat, and xpercent().

Referenced by Report().

Report()

void Mem::Report

(

std::ostream &

stream

)

Definition at line 548 of file old_api.cc.

References Mem::PoolMeter::mgb_t::bytes, Mem::PoolMeter::mgb_t::count, current_dtime, Mem::Meter::currentLevel(), double_to_str(), Mem::PoolMeter::gb_allocated, MemPools::GetInstance(), GlobalStats(), Mem::PoolMeter::inuse, Mem::PoolStats::meter, Mem::Allocator::meter, Mem::PoolStats::overhead, Mem::PoolStats::pool, PoolReport(), MemPools::pools, toMB, xm_deltat, xm_time, and xpercent().

Referenced by Stats().

Stats()

void Mem::Stats

(

StoreEntry *

sentry

)

Definition at line 77 of file old_api.cc.

References Mem::Meter::currentLevel(), DBG_IMPORTANT, debugs, HugeBufCountMeter, HugeBufVolumeMeter, and Report().

Referenced by Init(), DelayPools::RegisterWithCacheManager(), and Rock::Rebuild::Stats::SharedMemorySize().

ZeroSensitiveMemory()

void Mem::ZeroSensitiveMemory ( void *  dst, const size_t  len  )

inline

zeros the given memory area while disallowing the compiler to skip (i.e. optimize away) this cleanup, unlike a regular call to std::memset() or alike

Definition at line 19 of file Sensitive.h.

References assert.

Referenced by nmasldap_get_password(), and nmasldap_get_simple_pwd().