Function McGenEventRegister

system/lib/mimalloc/src/prim/windows/etw.h:559–604

This function is for use by MC-generated code and should not be used directly.

#pragma warning(disable:6103)
// This function is for use by MC-generated code and should not be used directly.
DECLSPEC_NOINLINE __inline
ULONG __stdcall
McGenEventRegister(
    _In_ LPCGUID ProviderId,
    _In_opt_ _mcgen_PENABLECALLBACK EnableCallback,
    _In_opt_ PVOID CallbackContext,
    _Inout_ PREGHANDLE RegHandle
    )
/*++

Routine Description:

    This function registers the provider with ETW.

Arguments:

    ProviderId - Provider ID to register with ETW.

    EnableCallback - Callback to be used.

    CallbackContext - Context for the callback.

    RegHandle - Pointer to registration handle.

Remarks:

    Should not be called if the provider is already registered (i.e. should not
    be called if *RegHandle != 0). Repeatedly registering a provider is a bug
    and may indicate a race condition. However, for compatibility with previous
    behavior, this function will return SUCCESS in this case.

--*/
{
    ULONG Error;

    if (*RegHandle != 0)
    {
        Error = 0; // ERROR_SUCCESS
    }
    else
    {
        Error = MCGEN_EVENTREGISTER(ProviderId, EnableCallback, CallbackContext, RegHandle);
    }

    return Error;
}
#pragma warning(pop)

// This macro is for use by MC-generated code and should not be used directly.