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// --------------------------------------------------------------------------
//
// File
// Name: BBStoreDHousekeeping.cpp
// Purpose: Implementation of housekeeping functions for bbstored
// Created: 11/12/03
//
// --------------------------------------------------------------------------
#include "Box.h"
#include <stdio.h>
#include <syslog.h>
#include "BackupStoreDaemon.h"
#include "BackupStoreAccountDatabase.h"
#include "BackupStoreAccounts.h"
#include "HousekeepStoreAccount.h"
#include "BoxTime.h"
#include "Configuration.h"
#include "MemLeakFindOn.h"
// --------------------------------------------------------------------------
//
// Function
// Name: BackupStoreDaemon::HousekeepingProcess()
// Purpose: Do housekeeping
// Created: 11/12/03
//
// --------------------------------------------------------------------------
void BackupStoreDaemon::HousekeepingProcess()
{
// Get the time between housekeeping runs
const Configuration &rconfig(GetConfiguration());
int64_t housekeepingInterval = SecondsToBoxTime((uint32_t)rconfig.GetKeyValueInt("TimeBetweenHousekeeping"));
int64_t lastHousekeepingRun = 0;
while(!StopRun())
{
// Time now
int64_t timeNow = GetCurrentBoxTime();
// Do housekeeping if the time interval has elapsed since the last check
if((timeNow - lastHousekeepingRun) >= housekeepingInterval)
{
// Store the time
lastHousekeepingRun = timeNow;
::syslog(LOG_INFO, "Starting housekeeping");
// Get the list of accounts
std::vector<int32_t> accounts;
if(mpAccountDatabase)
{
mpAccountDatabase->GetAllAccountIDs(accounts);
}
SetProcessTitle("housekeeping, active");
// Check them all
for(std::vector<int32_t>::const_iterator i = accounts.begin(); i != accounts.end(); ++i)
{
try
{
if(mpAccounts)
{
// Get the account root
std::string rootDir;
int discSet = 0;
mpAccounts->GetAccountRoot(*i, rootDir, discSet);
// Do housekeeping on this account
HousekeepStoreAccount housekeeping(*i, rootDir, discSet, *this);
housekeeping.DoHousekeeping();
}
}
catch(BoxException &e)
{
::syslog(LOG_ERR, "while housekeeping account %08X, exception %s (%d/%d) -- aborting housekeeping run for this account",
*i, e.what(), e.GetType(), e.GetSubType());
}
catch(std::exception &e)
{
::syslog(LOG_ERR, "while housekeeping account %08X, exception %s -- aborting housekeeping run for this account",
*i, e.what());
}
catch(...)
{
::syslog(LOG_ERR, "while housekeeping account %08X, unknown exception -- aborting housekeeping run for this account",
*i);
}
// Check to see if there's any message pending
CheckForInterProcessMsg(0 /* no account */);
// Stop early?
if(StopRun())
{
break;
}
}
::syslog(LOG_INFO, "Finished housekeeping");
}
// Placed here for accuracy, if StopRun() is true, for example.
SetProcessTitle("housekeeping, idle");
// Calculate how long should wait before doing the next housekeeping run
timeNow = GetCurrentBoxTime();
int64_t secondsToGo = BoxTimeToSeconds((lastHousekeepingRun + housekeepingInterval) - timeNow);
if(secondsToGo < 1) secondsToGo = 1;
if(secondsToGo > 60) secondsToGo = 60;
int32_t millisecondsToGo = ((int)secondsToGo) * 1000;
// Check to see if there's any message pending
CheckForInterProcessMsg(0 /* no account */, millisecondsToGo);
}
}
// --------------------------------------------------------------------------
//
// Function
// Name: BackupStoreDaemon::CheckForInterProcessMsg(int, int)
// Purpose: Process a message, returning true if the housekeeping process
// should abort for the specified account.
// Created: 11/12/03
//
// --------------------------------------------------------------------------
bool BackupStoreDaemon::CheckForInterProcessMsg(int AccountNum, int MaximumWaitTime)
{
// First, check to see if it's EOF -- this means something has gone wrong, and the housekeeping should terminate.
if(mInterProcessComms.IsEOF())
{
SetTerminateWanted();
return true;
}
// Get a line, and process the message
std::string line;
if(mInterProcessComms.GetLine(line, false /* no pre-processing */, MaximumWaitTime))
{
TRACE1("housekeeping received command '%s' over interprocess comms\n", line.c_str());
int account = 0;
if(line == "h")
{
// HUP signal received by main process
SetReloadConfigWanted();
return true;
}
else if(line == "t")
{
// Terminate signal received by main process
SetTerminateWanted();
return true;
}
else if(sscanf(line.c_str(), "r%x", &account) == 1)
{
// Main process is trying to lock an account -- are we processing it?
if(account == AccountNum)
{
// Yes! -- need to stop now so when it retries to get the lock, it will succeed
::syslog(LOG_INFO, "Housekeeping giving way to connection for account 0x%08x", AccountNum);
return true;
}
}
}
return false;
}
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