Disks.h File Reference
#include "store/Controlled.h"
#include "store/forward.h"
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class  Store::Disks
 summary view of all disk caches (cache_dirs) combined More...




typedef int STDIRSELECT(const StoreEntry *e)


void storeDirOpenSwapLogs (void)
int storeDirWriteCleanLogs (int reopen)
void storeDirCloseSwapLogs (void)
void allocate_new_swapdir (Store::DiskConfig *swap)
void free_cachedir (Store::DiskConfig *swap)
void storeDirSwapLog (const StoreEntry *e, int op)



Typedef Documentation


typedef int STDIRSELECT(const StoreEntry *e)

Definition at line 78 of file Disks.h.

Function Documentation

◆ allocate_new_swapdir()

void allocate_new_swapdir ( Store::DiskConfig swap)

◆ free_cachedir()

◆ storeDirCloseSwapLogs()

void storeDirCloseSwapLogs ( void  )

Definition at line 577 of file Disks.cc.

References SquidConfig::cacheSwap, Config, INDEXSD, and Store::DiskConfig::n_configured.

Referenced by mainReconfigureStart().

◆ storeDirOpenSwapLogs()

void storeDirOpenSwapLogs ( void  )

◆ storeDirSwapLog()

void storeDirSwapLog ( const StoreEntry e,
int  op 

An entry written to the swap log MUST have the following properties.

  1. It MUST be a public key. It does no good to log a public ADD, change the key, then log a private DEL. So we need to log a DEL before we change a key from public to private.
  2. It MUST have a valid (> -1) swap_filen.

Definition at line 733 of file Disks.cc.

References assert, debugs, EBIT_TEST, ENTRY_SPECIAL, StoreEntry::flags, StoreEntry::getMD5Text(), StoreEntry::hasDisk(), INDEXSD, KEY_PRIVATE, Store::NewLocalSearch(), STUB_RETVAL, StoreEntry::swap_dirn, StoreEntry::swap_filen, SWAP_LOG_MAX, SWAP_LOG_NOP, and swap_log_op_str.

Referenced by Fs::Ufs::RebuildState::addIfFresh(), Store::Disks::evictCached(), StoreEntry::forcePublicKey(), and storeSwapOutFileClosed().

◆ storeDirWriteCleanLogs()

int storeDirWriteCleanLogs ( int  reopen)


Writes a "clean" swap log file from in-memory metadata. This is a rewrite of the original function to troll each StoreDir and write the logs, and flush at the end of the run. Thanks goes to Eric Stern, since this solution came out of his COSS code.

Definition at line 593 of file Disks.cc.

References SquidConfig::cacheSwap, Store::Disk::canLog(), Store::Disk::cleanLog, Config, current_time, DBG_IMPORTANT, debugs, getCurrentTime(), Store::Disk::index, INDEXSD, Store::DiskConfig::n_configured, Store::Disk::CleanLog::nextEntry(), NULL, Store::Controller::store_dirs_rebuilding, storeDirOpenSwapLogs(), tvSubDsec(), Store::Disk::CleanLog::write(), and Store::Disk::writeCleanStart().

Referenced by death(), fatal(), fatal_dump(), mainRotate(), SquidShutdown(), and testUfs::testUfsSearch().

Variable Documentation

◆ storeDirSelectSwapDir

STDIRSELECT* storeDirSelectSwapDir

This function pointer is set according to 'store_dir_select_algorithm' in squid.conf.

Definition at line 28 of file Disks.cc.

Referenced by Store::Disks::init(), and storeCreate().






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