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https://github.com/uroni/urbackup_backend.git
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57 lines
1.2 KiB
C++
57 lines
1.2 KiB
C++
#include "WalCheckpointThread.h"
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#include "../urbackupcommon/os_functions.h"
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#include "../Interface/File.h"
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#include "../Interface/Server.h"
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#include "database.h"
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#include "../Interface/Database.h"
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#include <memory>
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void WalCheckpointThread::checkpoint(bool in_transaction)
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{
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int mode = MODE_READ;
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#ifdef _WIN32
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mode=MODE_READ_DEVICE;
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#endif
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std::auto_ptr<IFile> wal_file(Server->openFile(L"urbackup" + os_file_sep() + L"backup_server.db-wal", mode));
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if(wal_file.get()!=NULL)
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{
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if(wal_file->Size()>1*1024*1024*1024) //>1GiB
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{
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wal_file.reset();
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Server->Log("WAL file greater than 1GiB. Doing WAL checkpoint...", LL_INFO);
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IDatabase* db=Server->getDatabase(Server->getThreadID(), URBACKUPDB_SERVER);
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if(in_transaction)
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{
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db->Write("BEGIN EXCLUSIVE");
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}
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db->Write("PRAGMA wal_checkpoint(RESTART)");
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if(in_transaction)
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{
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db->EndTransaction();
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}
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checkpoint(true);
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}
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}
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else
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{
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Server->Log("Could not open WAL file (checking for WAL file size)", LL_DEBUG);
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}
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}
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void WalCheckpointThread::operator()()
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{
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while(true)
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{
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Server->wait(1*60*1000); //every min
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checkpoint();
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}
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}
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