| 1 | /* $Id: FTMInternal.h 31895 2010-08-24 09:00:14Z vboxsync $ */
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| 2 | /** @file
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| 3 | * FTM - Internal header file.
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| 4 | */
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| 5 |
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| 6 | /*
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| 7 | * Copyright (C) 2010 Oracle Corporation
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| 8 | *
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| 9 | * This file is part of VirtualBox Open Source Edition (OSE), as
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| 10 | * available from http://www.virtualbox.org. This file is free software;
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| 11 | * you can redistribute it and/or modify it under the terms of the GNU
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| 12 | * General Public License (GPL) as published by the Free Software
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| 13 | * Foundation, in version 2 as it comes in the "COPYING" file of the
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| 14 | * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
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| 15 | * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
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| 16 | */
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| 17 |
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| 18 | #ifndef ___FTMInternal_h
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| 19 | #define ___FTMInternal_h
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| 20 |
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| 21 | #include <VBox/cdefs.h>
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| 22 | #include <VBox/types.h>
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| 23 | #include <VBox/ftm.h>
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| 24 | #include <VBox/stam.h>
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| 25 | #include <VBox/pdmcritsect.h>
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| 26 |
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| 27 | /** @defgroup grp_ftm_int Internals.
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| 28 | * @ingroup grp_ftm
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| 29 | * @{
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| 30 | */
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| 31 |
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| 32 | typedef enum
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| 33 | {
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| 34 | /* Sync the changed memory pages. */
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| 35 | FTMSYNCSTATE_DELTA_MEMORY,
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| 36 | /* Sync the changed state (memory + vm/device internal state) */
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| 37 | FTMSYNCSTATE_DELTA_VM,
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| 38 | /* Sync the entire VM state. */
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| 39 | FTMSYNCSTATE_FULL
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| 40 | } FTMSYNCSTATE;
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| 41 |
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| 42 |
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| 43 | /**
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| 44 | * FTM VM Instance data.
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| 45 | * Changes to this must checked against the padding of the ftm union in VM!
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| 46 | */
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| 47 | typedef struct FTM
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| 48 | {
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| 49 | /** Address of the standby VM. */
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| 50 | R3PTRTYPE(char *) pszAddress;
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| 51 | /** Password to access the syncing server of the standby VM. */
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| 52 | R3PTRTYPE(char *) pszPassword;
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| 53 | /** Port of the standby VM. */
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| 54 | unsigned uPort;
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| 55 | /** Syncing interval in ms. */
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| 56 | unsigned uInterval;
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| 57 |
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| 58 | /** Set when this VM is the standby FT node. */
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| 59 | bool fIsStandbyNode;
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| 60 | /** Set when this master VM is busy with checkpointing. */
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| 61 | bool fCheckpointingActive;
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| 62 | bool fAlignment[6];
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| 63 |
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| 64 | /** Current active socket. */
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| 65 | RTSOCKET hSocket;
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| 66 | #if HC_ARCH_BITS == 32
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| 67 | RTSOCKET hSocketAlignment; /**< Alignment padding. */
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| 68 | #endif
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| 69 |
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| 70 | /** State sync. */
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| 71 | struct
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| 72 | {
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| 73 | unsigned uOffStream;
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| 74 | unsigned cbReadBlock;
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| 75 | bool fStopReading;
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| 76 | bool fIOError;
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| 77 | bool fEndOfStream;
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| 78 | bool fAlignment[5];
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| 79 | } syncstate;
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| 80 |
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| 81 | struct
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| 82 | {
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| 83 | R3PTRTYPE(PRTTCPSERVER) hServer;
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| 84 | } standby;
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| 85 |
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| 86 | struct
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| 87 | {
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| 88 | RTSEMEVENT hShutdownEvent;
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| 89 | } master;
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| 90 |
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| 91 | /** FTM critical section.
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| 92 | * This makes sure only the checkpoint or sync is active
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| 93 | */
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| 94 | PDMCRITSECT CritSect;
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| 95 |
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| 96 | STAMCOUNTER StatReceivedMem;
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| 97 | STAMCOUNTER StatReceivedState;
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| 98 | STAMCOUNTER StatSentMem;
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| 99 | STAMCOUNTER StatSentState;
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| 100 | } FTM;
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| 101 | AssertCompileMemberAlignment(FTM, CritSect, 8);
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| 102 |
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| 103 | /** @} */
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| 104 |
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| 105 | #endif
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