Writer.inl

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// Copyright Epic Games, Inc. All Rights Reserved.
 
#pragma once
 
#if TRACE_PRIVATE_MINIMAL_ENABLED
 
namespace UE {
namespace Trace {
namespace Private {
 
struct FWriteBuffer
{
    uint8                       Overflow[8];
    uint64                      PrevTimestamp;
    FWriteBuffer* __restrict    NextThread;
    FWriteBuffer* volatile      NextBuffer;
    uint8* __restrict           Cursor;
    uint8* __restrict volatile  Committed;
    uint8* __restrict           Reaped;
    int32 volatile              EtxOffset;
    uint16                      Size;
    uint16                      ThreadId;
};
 
TRACELOG_API uint64             TimeGetTimestamp();
TRACELOG_API FWriteBuffer*      Writer_NextBuffer();
TRACELOG_API FWriteBuffer*      Writer_GetBuffer();
 
#if IS_MONOLITHIC
extern thread_local FWriteBuffer* GTlsWriteBuffer;
inline FWriteBuffer* Writer_GetBuffer()
{
    return GTlsWriteBuffer;
}
#endif // IS_MONOLITHIC
 
inline uint64 Writer_GetTimestamp(FWriteBuffer* Buffer)
{
    uint64 Ret = TimeGetTimestamp() - Buffer->PrevTimestamp;
    Buffer->PrevTimestamp += Ret;
    return Ret;
}
 
} // namespace Private
} // namespace Trace
} // namespace UE
 
#endif // TRACE_PRIVATE_MINIMAL_ENABLED