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[winpr,stream] Add Stream_BufferAs macro

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* Add Stream_BufferAs, Stream_ConstBufferAs, Stream_GetBufferAs and
  Stream_GetPointerAs to get a pointer to the stream pointer or buffer
  casted to a specific type.
* Use WINPR_STREAM_CAST in these new macros for proper cast according to
  C or C++
This commit is contained in:
Armin Novak 2024-09-18 13:39:41 +02:00 committed by akallabeth
parent c5e8326d07
commit 46457a5033
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GPG Key ID: A49454A3FC909FD5
1 changed files with 25 additions and 1 deletions
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26
winpr/include/winpr/stream.h
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@ -1008,12 +1008,23 @@ extern "C"
Stream_Seek(_src, _n);
}
/** @brief Convenience macro to get a pointer to the stream buffer casted to a specific type
*
* @since version 3.9.0
*/
#define Stream_BufferAs(s, type) WINPR_STREAM_CAST(type*, Stream_Buffer(s))
static INLINE BYTE* Stream_Buffer(wStream* _s)
{
WINPR_ASSERT(_s);
return _s->buffer;
}
/** @brief Convenience macro to get a const pointer to the stream buffer casted to a specific type
*
* @since version 3.9.0
*/
#define Stream_ConstBufferAs(s, type) WINPR_STREAM_CAST(type*, Stream_ConstBuffer(s))
static INLINE const BYTE* Stream_ConstBuffer(const wStream* _s)
{
WINPR_ASSERT(_s);
@ -1021,7 +1032,14 @@ extern "C"
}
#define Stream_GetBuffer(_s, _b) _b = Stream_Buffer(_s)
#define Stream_PointerAs(s, type) (type*)Stream_Pointer(s)
/** @brief Convenience macro to get a pointer to the stream buffer casted to a specific type
*
* @since version 3.9.0
*/
#define Stream_GetBufferAs(_s, _b) _b = Stream_BufferAs(_s, typeof(_b))
#define Stream_PointerAs(s, type) WINPR_STREAM_CAST(type*, Stream_Pointer(s))
static INLINE void* Stream_Pointer(wStream* _s)
{
@ -1037,6 +1055,12 @@ extern "C"
#define Stream_GetPointer(_s, _p) _p = Stream_Pointer(_s)
/** @brief Convenience macro to get a pointer to the stream pointer casted to a specific type
*
* @since version 3.9.0
*/
#define Stream_GetPointerAs(_s, _p) _p = Stream_PointerAs(_s, typeof(_p))
#if defined(WITH_WINPR_DEPRECATED)
WINPR_API WINPR_DEPRECATED_VAR("Use Stream_SetPosition instead",
BOOL Stream_SetPointer(wStream* _s, BYTE* _p));