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#pragma once
 
// unique tag to fix pragma once gcc glueing: ./library/cpp/messagebus/defs.h

#include "codegen.h"
#include "netaddr.h"

#include <library/cpp/deprecated/enum_codegen/enum_codegen.h>

#include <util/generic/list.h>

#include <utility>

// For historical reasons TCrawlerModule need to access
// APIs that should be private.
class TCrawlerModule;

struct TDebugReceiverHandler;

namespace NBus {
    namespace NPrivate { 
        class TAcceptor; 
        struct TBusSessionImpl; 
        class TRemoteServerSession; 
        class TRemoteClientSession; 
        class TRemoteConnection; 
        class TRemoteServerConnection; 
        class TRemoteClientConnection; 
        class TBusSyncSourceSessionImpl; 

        struct TBusMessagePtrAndHeader; 

        struct TSessionDumpStatus; 

        struct TClientRequestImpl; 

    } 

    class TBusSession; 
    struct TBusServerSession; 
    struct TBusClientSession; 
    class TBusProtocol; 
    class TBusMessage; 
    class TBusMessageConnection; 
    class TBusMessageQueue; 
    class TBusLocator; 
    struct TBusQueueConfig; 
    struct TBusSessionConfig; 
    struct TBusHeader; 

    class IThreadHandler; 

    using TBusKey = ui64; 
    using TBusMessageList = TList<TBusMessage*>; 
    using TBusKeyVec = TVector<std::pair<TBusKey, TBusKey>>; 

    using TBusMessageQueuePtr = TIntrusivePtr<TBusMessageQueue>; 

    class TBusModule; 

    using TBusData = TString; 
    using TBusService = const char*; 

#define YBUS_KEYMIN TBusKey(0L) 
#define YBUS_KEYMAX TBusKey(-1L) 
#define YBUS_KEYLOCAL TBusKey(7L) 
#define YBUS_KEYINVALID TBusKey(99999999L)

    // Check that generated id is valid for remote message 
    inline bool IsBusKeyValid(TBusKey key) { 
        return key != YBUS_KEYINVALID && key != YBUS_KEYMAX && key > YBUS_KEYLOCAL; 
    } 

#define YBUS_VERSION 0 

#define YBUS_INFINITE (1u << 30u) 

#define YBUS_STATUS_BASIC 0x0000 
#define YBUS_STATUS_CONNS 0x0001 
#define YBUS_STATUS_INFLIGHT 0x0002

}