mirror of
https://github.com/zephyrproject-rtos/zephyr
synced 2025-08-23 12:36:35 +00:00
b699ce5e4e
Removes a number of pipe related function declarations out of the publicly available header file "microkernel/k_chstr.h". The removed function declarations were already declared in the private header file "ch_buff.h". Change-Id: I389b0b898cddfb9320831b94d85054e4cf9458dc Signed-off-by: Peter Mitsis <peter.mitsis@windriver.com> Signed-off-by: Benjamin Walsh <benjamin.walsh@windriver.com>
94 lines
2.9 KiB
C
94 lines
2.9 KiB
C
/* microkernel/k_chstr.h */
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/*
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* Copyright (c) 1997-2012, 2015 Wind River Systems, Inc.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1) Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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*
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* 2) Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* 3) Neither the name of Wind River Systems nor the names of its contributors
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* may be used to endorse or promote products derived from this software without
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* specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef _K_CHANSTRUCT_H
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#define _K_CHANSTRUCT_H
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#ifdef __cplusplus
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extern "C" {
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#endif
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#define MAXNBR_MARKERS 10 /* 1==disable parallel transfers */
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struct marker {
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unsigned char *pointer; /* NULL == non valid marker == free */
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int size;
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BOOL bXferBusy;
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int Prev; /* -1 == no predecessor */
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int Next; /* -1 == no successor */
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};
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struct marker_list {
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int iNbrMarkers; /* Only used if STORE_NBR_MARKERS is defined */
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int iFirstMarker;
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int iLastMarker;
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int iAWAMarker; /* -1 means no AWAMarkers */
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struct marker aMarkers[MAXNBR_MARKERS];
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};
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typedef enum {
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BUFF_EMPTY, /* buffer is empty, disregarding the pending data Xfers
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(reads) still finishing up */
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BUFF_FULL, /* buffer is full, disregarding the pending data Xfers
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(writes) still finishing up */
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BUFF_OTHER
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} BUFF_STATE;
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struct chbuff {
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int iBuffSize;
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unsigned char *pBegin;
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unsigned char *pWrite;
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unsigned char *pRead;
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unsigned char *pWriteGuard; /* can be NULL --> invalid */
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unsigned char *pReadGuard; /* can be NULL --> invalid */
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int iFreeSpaceCont;
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int iFreeSpaceAWA;
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int iNbrPendingReads;
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int iAvailDataCont;
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int iAvailDataAWA; /* AWA == After Wrap Around */
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int iNbrPendingWrites;
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BOOL bWriteWA;
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BOOL bReadWA;
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BUFF_STATE BuffState;
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struct marker_list WriteMarkers;
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struct marker_list ReadMarkers;
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unsigned char *pEnd;
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unsigned char *pEndOrig;
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};
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#ifdef __cplusplus
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}
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#endif
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#endif /* _K_CHANSTRUCT_H */
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