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445 lines
15 KiB
445 lines
15 KiB
5 years ago
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//========= Copyright Valve Corporation, All rights reserved. ============//
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//
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//=======================================================================================//
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#include "cl_sessioninfodownloader.h"
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#include "replay/ienginereplay.h"
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#include "replay/shared_defs.h"
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#include "cl_recordingsession.h"
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#include "cl_recordingsessionblock.h"
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#include "cl_replaycontext.h"
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#include "cl_sessionblockdownloader.h"
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#include "KeyValues.h"
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#include "convar.h"
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#include "dbg.h"
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#include "vprof.h"
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#include "sessioninfoheader.h"
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#include "utlbuffer.h"
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// memdbgon must be the last include file in a .cpp file!!!
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#include "tier0/memdbgon.h"
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//----------------------------------------------------------------------------------------
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extern IEngineReplay *g_pEngine;
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//----------------------------------------------------------------------------------------
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CSessionInfoDownloader::CSessionInfoDownloader()
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: m_pDownloader( NULL ),
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m_pSession( NULL ),
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m_flLastDownloadTime( 0.0f ),
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m_nError( ERROR_NONE ),
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m_nHttpError( HTTP_ERROR_NONE ),
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m_bDone( false )
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{
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}
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CSessionInfoDownloader::~CSessionInfoDownloader()
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{
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Assert( m_pDownloader == NULL ); // We should have deleted the downloader already
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}
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void CSessionInfoDownloader::CleanupDownloader()
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{
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if ( m_pDownloader )
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{
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m_pDownloader->AbortDownloadAndCleanup();
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m_pDownloader = NULL;
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}
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}
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void CSessionInfoDownloader::DownloadSessionInfoAndUpdateBlocks( CBaseRecordingSession *pSession )
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{
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Assert( m_pDownloader == NULL );
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// Cache session
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m_pSession = pSession;
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// Download the session info now
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m_pDownloader = new CHttpDownloader( this );
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m_pDownloader->BeginDownload( pSession->GetSessionInfoURL(), NULL );
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}
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float CSessionInfoDownloader::GetNextThinkTime() const
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{
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extern ConVar replay_sessioninfo_updatefrequency;
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return m_flLastDownloadTime + replay_sessioninfo_updatefrequency.GetFloat();
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}
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void CSessionInfoDownloader::Think()
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{
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VPROF_BUDGET( "CSessionInfoDownloader::Think", VPROF_BUDGETGROUP_REPLAY );
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CBaseThinker::Think();
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// If we're not downloading, no need to think
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if ( !m_pDownloader )
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return;
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// If the download's complete
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if ( m_pDownloader->IsDone() && m_pDownloader->CanDelete() )
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{
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// We're done - CanDelete() will now return true
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delete m_pDownloader;
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m_pDownloader = NULL;
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}
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else
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{
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// Otherwise, think...
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m_pDownloader->Think();
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}
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}
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void CSessionInfoDownloader::OnDownloadComplete( CHttpDownloader *pDownloader, const unsigned char *pData )
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{
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Assert( pDownloader );
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// Clear out any previous error
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m_nError = ERROR_NONE;
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m_nHttpError = HTTP_ERROR_NONE;
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bool bUpdatedSomething = false;
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#if _DEBUG
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extern ConVar replay_simulatedownloadfailure;
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const bool bForceError = replay_simulatedownloadfailure.GetInt() == 2;
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#else
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const bool bForceError = false;
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#endif
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if ( pDownloader->GetStatus() != HTTP_DONE || bForceError )
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{
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m_nError = ERROR_DOWNLOAD_FAILED;
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m_nHttpError = pDownloader->GetError();
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DBG( "Session info download FAILED.\n" );
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}
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else
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{
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Assert( pData );
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// Read header
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SessionInfoHeader_t header;
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if ( !ReadSessionInfoHeader( pData, pDownloader->GetSize(), header ) )
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{
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m_nError = ERROR_NOT_ENOUGH_DATA;
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}
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else
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{
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IF_REPLAY_DBG( Warning( "Session info downloaded successfully for session %s\n", header.m_szSessionName ) );
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// Get number of blocks for data validation
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const int nNumBlocks = header.m_nNumBlocks;
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if ( nNumBlocks <= 0 )
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{
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m_nError = ERROR_BAD_NUM_BLOCKS;
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}
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else
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{
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// The block has either been found or created - now, fill it with data
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const char *pSessionName = header.m_szSessionName;
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if ( !pSessionName || !pSessionName[0] )
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{
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m_nError = ERROR_NO_SESSION_NAME;
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}
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else
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{
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// Now that we have the session name, find it in the client session manager
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CClientRecordingSession *pSession = CL_CastSession( CL_GetRecordingSessionManager()->FindSessionByName( pSessionName ) ); Assert( pSession );
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if ( !pSession )
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{
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AssertMsg( 0, "Session should always exist by this point" );
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m_nError = ERROR_UNKNOWN_SESSION;
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}
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else
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{
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// Get recording state for session
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pSession->m_bRecording = header.m_bRecording;
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const CompressorType_t nHeaderCompressorType = header.m_nCompressorType;
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uint8 *pPayload = (uint8 *)pData + sizeof( SessionInfoHeader_t );
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uint8 *pUncompressedPayload = NULL;
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unsigned int uUncompressedPayloadSize = header.m_uPayloadSizeUC;
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// Validate the payload with the MD5 digest
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bool bPayloadValid = g_pEngine->MD5_HashBuffer( header.m_aHash, (const uint8 *)pPayload, header.m_uPayloadSize, NULL );
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if ( !bPayloadValid )
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{
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m_nError = ERROR_PAYLOAD_HASH_FAILED;
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}
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else
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{
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if ( nHeaderCompressorType == COMPRESSORTYPE_INVALID )
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{
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// Uncompressed payload is read to go
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pUncompressedPayload = pPayload;
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}
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else
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{
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// Attempt to decompress the payload
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ICompressor *pCompressor = CreateCompressor( header.m_nCompressorType );
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if ( !pCompressor )
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{
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bPayloadValid = false;
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m_nError = ERROR_COULD_NOT_CREATE_COMPRESSOR;
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}
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else
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{
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// Uncompressed size big enough to read at least one block?
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if ( header.m_uPayloadSizeUC <= MIN_SESSION_INFO_PAYLOAD_SIZE )
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{
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bPayloadValid = false;
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m_nError = ERROR_INVALID_UNCOMPRESSED_SIZE;
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}
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else
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{
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// Attempt to decompress payload now
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pUncompressedPayload = new uint8[ uUncompressedPayloadSize ];
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if ( !pCompressor->Decompress( (char *)pUncompressedPayload, &uUncompressedPayloadSize, (const char *)pPayload, header.m_uPayloadSize ) )
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{
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bPayloadValid = false;
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m_nError = ERROR_PAYLOAD_DECOMPRESS_FAILED;
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}
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}
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}
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}
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if ( bPayloadValid )
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{
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AssertMsg( pUncompressedPayload, "This should never be NULL here." );
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AssertMsg( uUncompressedPayloadSize >= MIN_SESSION_INFO_PAYLOAD_SIZE, "This size should always be valid here." );
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RecordingSessionBlockSpec_t DummyBlock;
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CUtlBuffer buf( pUncompressedPayload, uUncompressedPayloadSize, CUtlBuffer::READ_ONLY );
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// Optimization: start the read at the first block we care about, which is one block after the last consecutive, downloaded block.
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// This optimization should come in handy on servers that run lengthy rounds, so we're not reiterating over inconsequential blocks
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// (i.e. they were already downloaded).
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int iStartBlock = pSession->GetGreatestConsecutiveBlockDownloaded() + 1;
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if ( iStartBlock > 0 )
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{
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buf.SeekGet( CUtlBuffer::SEEK_HEAD, iStartBlock * sizeof( RecordingSessionBlockSpec_t ) );
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}
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// If for some reason the seek caused a 'get' overflow, try reading from the start of the buffer.
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if ( !buf.IsValid() )
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{
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iStartBlock = 0;
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buf.SeekGet( CUtlBuffer::SEEK_HEAD, 0 );
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}
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// Read blocks, starting from the calculated start block.
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for ( int i = iStartBlock; i < header.m_nNumBlocks; ++i )
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{
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// Attempt to read the current block from the buffer
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buf.Get( &DummyBlock, sizeof( DummyBlock ) );
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if ( !buf.IsValid() )
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{
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m_nError = ERROR_BLOCK_READ_FAILED;
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break;
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}
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IF_REPLAY_DBG( Warning( "processing block with recon index: %i\n", DummyBlock.m_iReconstruction ) );
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// Get reconstruction index
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const int iBlockReconstruction = (ReplayHandle_t)DummyBlock.m_iReconstruction;
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if ( iBlockReconstruction < 0 )
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{
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m_nError = ERROR_INVALID_ORDER;
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continue;
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}
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// Check status
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const int nRemoteStatus = (int)DummyBlock.m_uRemoteStatus;
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if ( nRemoteStatus < 0 || nRemoteStatus >= CBaseRecordingSessionBlock::MAX_STATUS )
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{
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// Status not found or invalid status
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m_nError = ERROR_INVALID_REPLAY_STATUS;
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continue;
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}
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// Get the block file size
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const uint32 uFileSize = (uint32)DummyBlock.m_uFileSize;
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// Get the uncompressed block size
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const uint32 uUncompressedSize = (uint32)DummyBlock.m_uUncompressedSize;
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// Get the compressor type
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const int nCompressorType = (uint32)DummyBlock.m_nCompressorType;
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// Attempt to find the block in the session
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CClientRecordingSessionBlock *pBlock = CL_CastBlock( CL_GetRecordingSessionBlockManager()->FindBlockForSession( m_pSession->GetHandle(), iBlockReconstruction ) );
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// If the block exists and has already been downloaded, we have nothing more to update
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if ( pBlock && !pBlock->NeedsUpdate() )
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continue;
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bool bBlockDataChanged = false;
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// If the block doesn't exist in the session block manager, create it now
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if ( !pBlock )
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{
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CClientRecordingSessionBlock *pNewBlock = CL_CastBlock( CL_GetRecordingSessionBlockManager()->CreateAndGenerateHandle() );
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pNewBlock->m_iReconstruction = iBlockReconstruction;
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// pNewBlock->m_strFullFilename = Replay_va(
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const char *pFullFilename = Replay_va(
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"%s%s_part_%i.%s",
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pNewBlock->GetPath(),
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pSession->m_strName.Get(), pNewBlock->m_iReconstruction,
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BLOCK_FILE_EXTENSION
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);
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V_strcpy( pNewBlock->m_szFullFilename, pFullFilename );
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pNewBlock->m_hSession = pSession->GetHandle();
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// Add to session block manager
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CL_GetRecordingSessionBlockManager()->Add( pNewBlock );
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// Add the block to the session (marks session as dirty)
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pSession->AddBlock( pNewBlock, false );
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// Use the new block
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pBlock = pNewBlock;
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bBlockDataChanged = true;
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}
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IF_REPLAY_DBG2( Warning( " Block %i status=%s\n", pBlock->m_iReconstruction, pBlock->GetRemoteStatusStringSafe( pBlock->m_nRemoteStatus ) ) );
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// Now that we've got a block, replicate the server data/fill it in
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if ( pBlock->m_nRemoteStatus != nRemoteStatus )
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{
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pBlock->m_nRemoteStatus = (CBaseRecordingSessionBlock::RemoteStatus_t)nRemoteStatus;
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bBlockDataChanged = true;
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}
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// Block file size needs to be set?
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if ( pBlock->m_uFileSize != uFileSize )
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{
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pBlock->m_uFileSize = uFileSize;
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bBlockDataChanged = true;
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}
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// Uncompressed block file size needs to be set?
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if ( pBlock->m_uUncompressedSize != uUncompressedSize )
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{
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Assert( nCompressorType >= COMPRESSORTYPE_INVALID );
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pBlock->m_uUncompressedSize = uUncompressedSize;
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bBlockDataChanged = true;
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}
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// Compressor type needs to be set?
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if ( pBlock->m_nCompressorType != (CompressorType_t)nCompressorType )
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{
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pBlock->m_nCompressorType = (CompressorType_t)nCompressorType;
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bBlockDataChanged = true;
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}
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// Attempt to read the hash if we haven't already done so
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if ( !pBlock->HasValidHash() )
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{
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V_memcpy( pBlock->m_aHash, DummyBlock.m_aHash, sizeof( pBlock->m_aHash ) );
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bBlockDataChanged = true;
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}
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// Shift the block's state from waiting to ready-to-download if the block is ready on the server.
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if ( pBlock->m_nDownloadStatus == CClientRecordingSessionBlock::DOWNLOADSTATUS_WAITING &&
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nRemoteStatus == CBaseRecordingSessionBlock::STATUS_READYFORDOWNLOAD )
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{
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pBlock->m_nDownloadStatus = CClientRecordingSessionBlock::DOWNLOADSTATUS_READYTODOWNLOAD;
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}
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// Save
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if ( bBlockDataChanged )
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{
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CL_GetRecordingSessionBlockManager()->FlagForFlush( pBlock, false );
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bUpdatedSomething = true;
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}
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}
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// If this session is not recording, make sure the max number of blocks in the session is in check.
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if ( !pSession->m_bRecording && pSession->GetLastBlockToDownload() >= nNumBlocks )
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{
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// This will adjust all replay max blocks
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pSession->AdjustLastBlockToDownload( nNumBlocks - 1 );
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}
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// If we've updated something, set cache the current time in the session
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if ( bUpdatedSomething )
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{
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pSession->RefreshLastUpdateTime();
|
||
|
|
}
|
||
|
|
else if ( pSession->GetLastUpdateTime() >= 0.0f && ( g_pEngine->GetHostTime() - pSession->GetLastUpdateTime() > DOWNLOAD_TIMEOUT_THRESHOLD ) )
|
||
|
|
{
|
||
|
|
pSession->OnDownloadTimeout();
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
// Display a message for the given download error
|
||
|
|
if ( m_nError != ERROR_NONE )
|
||
|
|
{
|
||
|
|
// Report an error to the user
|
||
|
|
const char *pErrorToken = GetErrorString( m_nError, m_nHttpError );
|
||
|
|
if ( m_nError == ERROR_DOWNLOAD_FAILED )
|
||
|
|
{
|
||
|
|
KeyValues *pParams = new KeyValues( "args", "url", pDownloader->GetURL() );
|
||
|
|
CL_GetErrorSystem()->AddFormattedErrorFromTokenName( pErrorToken, pParams );
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
CL_GetErrorSystem()->AddErrorFromTokenName( pErrorToken );
|
||
|
|
}
|
||
|
|
|
||
|
|
// Report error to OGS
|
||
|
|
CL_GetErrorSystem()->OGS_ReportSessioInfoDownloadError( pDownloader, pErrorToken );
|
||
|
|
}
|
||
|
|
|
||
|
|
// Flag as done
|
||
|
|
m_bDone = true;
|
||
|
|
|
||
|
|
// Cache download time
|
||
|
|
m_flLastDownloadTime = g_pEngine->GetHostTime();
|
||
|
|
}
|
||
|
|
|
||
|
|
const char *CSessionInfoDownloader::GetErrorString( int nError, HTTPError_t nHttpError ) const
|
||
|
|
{
|
||
|
|
switch ( nError )
|
||
|
|
{
|
||
|
|
case ERROR_NO_SESSION_NAME: return "#Replay_DL_Err_SI_NoSessionName";
|
||
|
|
case ERROR_REPLAY_NOT_FOUND: return "#Replay_DL_Err_SI_ReplayNotFound";
|
||
|
|
case ERROR_INVALID_REPLAY_STATUS: return "#Replay_DL_Err_SI_InvalidReplayStatus";
|
||
|
|
case ERROR_INVALID_ORDER: return "#Replay_DL_Err_SI_InvalidOrder";
|
||
|
|
case ERROR_UNKNOWN_SESSION: return "#Replay_DL_Err_SI_Unknown_Session";
|
||
|
|
case ERROR_BLOCK_READ_FAILED: return "#Replay_DL_Err_SI_BlockReadFailed";
|
||
|
|
case ERROR_NOT_ENOUGH_DATA: return "#Replay_DL_Err_SI_NotEnoughData";
|
||
|
|
case ERROR_COULD_NOT_CREATE_COMPRESSOR: return "#Replay_DL_Err_SI_CouldNotCreateCompressor";
|
||
|
|
case ERROR_INVALID_UNCOMPRESSED_SIZE: return "#Replay_DL_Err_SI_InvalidUncompressedSize";
|
||
|
|
case ERROR_PAYLOAD_DECOMPRESS_FAILED: return "#Replay_DL_Err_SI_PayloadDecompressFailed";
|
||
|
|
case ERROR_PAYLOAD_HASH_FAILED: return "#Replay_DL_Err_SI_PayloadHashFailed";
|
||
|
|
|
||
|
|
case ERROR_DOWNLOAD_FAILED:
|
||
|
|
switch ( m_nHttpError )
|
||
|
|
{
|
||
|
|
case HTTP_ERROR_ZERO_LENGTH_FILE: return "#Replay_DL_Err_SI_DownloadFailed_ZeroLengthFile";
|
||
|
|
case HTTP_ERROR_CONNECTION_CLOSED: return "#Replay_DL_Err_SI_DownloadFailed_ConnectionClosed";
|
||
|
|
case HTTP_ERROR_INVALID_URL: return "#Replay_DL_Err_SI_DownloadFailed_InvalidURL";
|
||
|
|
case HTTP_ERROR_INVALID_PROTOCOL: return "#Replay_DL_Err_SI_DownloadFailed_InvalidProtocol";
|
||
|
|
case HTTP_ERROR_CANT_BIND_SOCKET: return "#Replay_DL_Err_SI_DownloadFailed_CantBindSocket";
|
||
|
|
case HTTP_ERROR_CANT_CONNECT: return "#Replay_DL_Err_SI_DownloadFailed_CantConnect";
|
||
|
|
case HTTP_ERROR_NO_HEADERS: return "#Replay_DL_Err_SI_DownloadFailed_NoHeaders";
|
||
|
|
case HTTP_ERROR_FILE_NONEXISTENT: return "#Replay_DL_Err_SI_DownloadFailed_FileNonExistent";
|
||
|
|
default: return "#Replay_DL_Err_SI_DownloadFailed_UnknownError";
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return "#Replay_DL_Err_SI_Unknown";
|
||
|
|
}
|
||
|
|
|
||
|
|
//----------------------------------------------------------------------------------------
|