87 lines
2.8 KiB
C
87 lines
2.8 KiB
C
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/*
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ChibiOS - Copyright (C) 2006..2016 Giovanni Di Sirio
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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/**
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* @file nullstreams.h
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* @brief Null streams structures and macros.
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* @addtogroup null_streams
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* @{
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*/
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#ifndef NULLSTREAMS_H
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#define NULLSTREAMS_H
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/*===========================================================================*/
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/* Driver constants. */
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/*===========================================================================*/
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/*===========================================================================*/
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/* Driver pre-compile time settings. */
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/*===========================================================================*/
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/*===========================================================================*/
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/* Derived constants and error checks. */
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/*===========================================================================*/
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/*===========================================================================*/
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/* Driver data structures and types. */
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/*===========================================================================*/
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/**
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* @brief @p NullStream specific data.
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*/
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#define _null_stream_data \
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_base_sequential_stream_data
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/**
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* @brief @p NullStream virtual methods table.
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*/
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struct NullStreamVMT {
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_base_sequential_stream_methods
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};
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/**
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* @extends BaseSequentialStream
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*
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* @brief Null stream object.
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*/
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typedef struct {
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/** @brief Virtual Methods Table.*/
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const struct NullStreamVMT *vmt;
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_null_stream_data
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} NullStream;
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/*===========================================================================*/
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/* Driver macros. */
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/*===========================================================================*/
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/*===========================================================================*/
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/* External declarations. */
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/*===========================================================================*/
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#ifdef __cplusplus
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extern "C" {
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#endif
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void nullObjectInit(NullStream *nsp);
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#ifdef __cplusplus
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}
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#endif
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#endif /* NULLSTREAMS_H */
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/** @} */
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