[Mesa-dev] [PATCH v2 04/19] swr: [rasterizer core] utility function for getenv

[Ian Romanick]

This doesn't appear to be used anywhere.  Maybe I missed it in some late
patch?  As far as I can tell, getenv works on Windows (core Mesa uses it
all over the place), so the added value isn't clear to me.

On 05/17/2016 03:36 PM, Tim Rowley wrote:
> ---
>  src/gallium/drivers/swr/rasterizer/core/utils.h | 17 +++++++++++++++++
>  1 file changed, 17 insertions(+)
> 
> diff --git a/src/gallium/drivers/swr/rasterizer/core/utils.h b/src/gallium/drivers/swr/rasterizer/core/utils.h
> index e3c534d..1c4780a 100644
> --- a/src/gallium/drivers/swr/rasterizer/core/utils.h
> +++ b/src/gallium/drivers/swr/rasterizer/core/utils.h
> @@ -866,3 +866,20 @@ struct TemplateArgUnroller
>      }
>  };
>  
> +//////////////////////////////////////////////////////////////////////////
> +/// Helper used to get an environment variable
> +//////////////////////////////////////////////////////////////////////////
> +static INLINE std::string GetEnv(const std::string& variableName)
> +{
> +    std::string output;
> +#if defined(_WIN32)
> +    DWORD valueSize = GetEnvironmentVariableA(variableName.c_str(), nullptr, 0);
> +    if (!valueSize) return output;
> +    output.resize(valueSize - 1); // valueSize includes null, output.resize() does not
> +    GetEnvironmentVariableA(variableName.c_str(), &output[0], valueSize);
> +#else
> +    output = getenv(variableName.c_str());
> +#endif
> +
> +    return output;
> +}
> \ No newline at end of file
>