310 lines
8.0 KiB
C
310 lines
8.0 KiB
C
/* KS_Chan.c */
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/*
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* Copyright (c) 1997-2010, 2013-2014 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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/* includes */
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#include <microkernel/k_struct.h>
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#include <kchan.h>
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#include <minik.h>
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#include <microkernel/chan.h>
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#include <toolchain.h>
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/*******************************************************************************
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*
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* task_pipe_put - put data on a channel
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*
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* RETURNS: RC_OK or RC_FAIL
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*/
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int task_pipe_put(kpipe_t id,
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void *buffer,
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int NrOfBytesToWrite,
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int *NrOfBytesWritten,
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K_PIPE_OPTION opt)
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{
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if (OBJ_NODE(id) != 0) { /* a target channel */
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if (unlikely(pKS_Channel_PutWT == NULL))
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return RC_FAIL; /* or an assert */
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return (*pKS_Channel_PutWT)(id,
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buffer,
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NrOfBytesToWrite,
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NrOfBytesWritten,
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opt,
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TICKS_NONE);
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}
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#ifdef ENABLE_DEVICE_CHANNEL
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else if (id & _DEVICE_CHANNEL) { /* a device channel */
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if (unlikely(pKS_Device_Put == NULL))
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return RC_FAIL; /* or an assert */
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return (*pKS_Device_Put)(
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id, buffer, NrOfBytesToWrite, NrOfBytesWritten, opt);
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}
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#endif
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else {
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/* a host channel */
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if (unlikely(pHS_Channel_Put == NULL))
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return RC_FAIL; /* or an assert */
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return (*pHS_Channel_Put)(
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id, buffer, NrOfBytesToWrite, NrOfBytesWritten, opt);
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}
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}
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/*******************************************************************************
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*
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* task_pipe_put_wait - put data on a channel
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*
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* RETURNS: RC_OK or RC_FAIL
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*/
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int task_pipe_put_wait(kpipe_t id,
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void *buffer,
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int NrOfBytesToWrite,
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int *NrOfBytesWritten,
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K_PIPE_OPTION opt)
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{
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if (OBJ_NODE(id) != 0) { /* a target channel */
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if (unlikely(pKS_Channel_PutWT == NULL))
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return RC_FAIL; /* or an assert */
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return (*pKS_Channel_PutWT)(id,
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buffer,
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NrOfBytesToWrite,
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NrOfBytesWritten,
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opt,
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TICKS_UNLIMITED);
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}
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#ifdef ENABLE_DEVICE_CHANNEL
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else if (id & _DEVICE_CHANNEL) { /* a device channel */
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if (unlikely(pKS_Device_PutW == NULL))
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return RC_FAIL; /* or an assert */
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return (*pKS_Device_PutW)(
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id, buffer, NrOfBytesToWrite, NrOfBytesWritten, opt);
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}
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#endif
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else {
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/* a host channel */
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if (unlikely(pHS_Channel_PutW == NULL))
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return RC_FAIL; /* or an assert */
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return (*pHS_Channel_PutW)(
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id, buffer, NrOfBytesToWrite, NrOfBytesWritten, opt);
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}
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}
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/*******************************************************************************
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*
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* task_pipe_put_wait_timeout - put data on a channel
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*
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* RETURNS: RC_OK, RC_TIME or RC_FAIL
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*/
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int task_pipe_put_wait_timeout(kpipe_t id,
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void *buffer,
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int NrOfBytesToWrite,
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int *NrOfBytesWritten,
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K_PIPE_OPTION opt,
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int32_t TimeOut)
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{
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if (OBJ_NODE(id) != 0) { /* a target channel */
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if (unlikely(pKS_Channel_PutWT == NULL))
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return RC_FAIL; /* or an assert */
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return (*pKS_Channel_PutWT)(id,
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buffer,
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NrOfBytesToWrite,
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NrOfBytesWritten,
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opt,
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TimeOut);
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}
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#ifdef ENABLE_DEVICE_CHANNEL
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else if (id & _DEVICE_CHANNEL) { /* a device channel */
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if (unlikely(pKS_Device_PutWT == NULL))
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return RC_FAIL; /* or an assert */
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return (*pKS_Device_PutWT)(id,
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buffer,
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NrOfBytesToWrite,
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NrOfBytesWritten,
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opt,
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TimeOut);
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}
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#endif
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else {
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/* a host channel */
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if (unlikely(pHS_Channel_PutWT == NULL))
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return RC_FAIL; /* or an assert */
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return (*pHS_Channel_PutWT)(id,
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buffer,
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NrOfBytesToWrite,
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NrOfBytesWritten,
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opt,
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TimeOut);
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}
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}
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/*******************************************************************************
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*
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* task_pipe_get - get data off a channel
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*
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* RETURNS: RC_OK or RC_FAIL
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*/
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int task_pipe_get(kpipe_t id,
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void *buffer,
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int NrOfBytesToRead,
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int *NrOfBytesRead,
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K_PIPE_OPTION opt)
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{
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if (OBJ_NODE(id) != 0) { /* a target channel */
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if (unlikely(pKS_Channel_GetWT == NULL))
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return RC_FAIL; /* or an assert */
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return (*pKS_Channel_GetWT)(id,
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buffer,
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NrOfBytesToRead,
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NrOfBytesRead,
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opt,
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TICKS_NONE);
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}
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#ifdef ENABLE_DEVICE_CHANNEL
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else if (id & _DEVICE_CHANNEL) { /* a device channel */
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if (unlikely(pKS_Device_GetWT == NULL))
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return RC_FAIL; /* or an assert */
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return (*pKS_Device_Get)(
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id, buffer, NrOfBytesToRead, NrOfBytesRead, opt);
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}
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#endif
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else {
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/* a host channel */
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if (unlikely(pHS_Channel_Get == NULL))
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return RC_FAIL; /* or an assert */
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return (*pHS_Channel_Get)(
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id, buffer, NrOfBytesToRead, NrOfBytesRead, opt);
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}
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}
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/*******************************************************************************
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*
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* task_pipe_get_wait - get data off a channel
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*
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* RETURNS: RC_OK or RC_FAIL
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*/
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int task_pipe_get_wait(kpipe_t id,
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void *buffer,
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int NrOfBytesToRead,
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int *NrOfBytesRead,
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K_PIPE_OPTION opt)
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{
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if (OBJ_NODE(id) != 0) { /* a target channel */
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if (unlikely(pKS_Channel_GetWT == NULL))
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return RC_FAIL; /* or an assert */
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return (*pKS_Channel_GetWT)(id,
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buffer,
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NrOfBytesToRead,
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NrOfBytesRead,
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opt,
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TICKS_UNLIMITED);
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}
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#ifdef ENABLE_DEVICE_CHANNEL
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else if (id & _DEVICE_CHANNEL) { /* a device channel */
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if (unlikely(pKS_Device_GetW == NULL))
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return RC_FAIL; /* or an assert */
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return (*pKS_Device_GetW)(
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id, buffer, NrOfBytesToRead, NrOfBytesRead, opt);
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}
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#endif
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else {
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/* a host channel */
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if (unlikely(pHS_Channel_GetW == NULL))
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return RC_FAIL; /* or an assert */
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return (*pHS_Channel_GetW)(
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id, buffer, NrOfBytesToRead, NrOfBytesRead, opt);
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}
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}
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/*******************************************************************************
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*
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* task_pipe_get_wait_timeout - get data off a channel
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*
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* RETURNS: RC_OK, RC_TIME or RC_FAIL
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*/
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int task_pipe_get_wait_timeout(kpipe_t id,
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void *buffer,
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int NrOfBytesToRead,
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int *NrOfBytesRead,
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K_PIPE_OPTION opt,
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int32_t TimeOut)
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{
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if (OBJ_NODE(id) != 0) { /* a target channel */
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if (unlikely(pKS_Channel_GetWT == NULL))
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return RC_FAIL; /* or an assert */
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return (*pKS_Channel_GetWT)(id,
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buffer,
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NrOfBytesToRead,
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NrOfBytesRead,
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opt,
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TimeOut);
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}
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#ifdef ENABLE_DEVICE_CHANNEL
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else if (id & _DEVICE_CHANNEL) { /* a device channel */
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if (unlikely(pKS_Device_GetWT == NULL))
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return RC_FAIL; /* or an assert */
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return (*pKS_Device_GetWT)(id,
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buffer,
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NrOfBytesToRead,
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NrOfBytesRead,
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opt,
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TimeOut);
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}
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#endif
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else {
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/* a host channel */
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if (unlikely(pHS_Channel_GetWT == NULL))
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return RC_FAIL; /* or an assert */
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return (*pHS_Channel_GetWT)(id,
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buffer,
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NrOfBytesToRead,
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NrOfBytesRead,
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opt,
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TimeOut);
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}
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}
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