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/* IBM_PROLOG_BEGIN_TAG */
/* This is an automatically generated prolog. */
/* */
/* $Source: src/usr/errl/errlud.C $ */
/* */
/* OpenPOWER HostBoot Project */
/* */
/* COPYRIGHT International Business Machines Corp. 2011,2014 */
/* */
/* Licensed under the Apache License, Version 2.0 (the "License"); */
/* you may not use this file except in compliance with the License. */
/* You may obtain a copy of the License at */
/* */
/* http://www.apache.org/licenses/LICENSE-2.0 */
/* */
/* Unless required by applicable law or agreed to in writing, software */
/* distributed under the License is distributed on an "AS IS" BASIS, */
/* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or */
/* implied. See the License for the specific language governing */
/* permissions and limitations under the License. */
/* */
/* IBM_PROLOG_END_TAG */
/**
* @file errlud.C
*
* @brief <Brief Description of this file>
*
* <Detailed description of what this file does, functions it includes,
* etc,>
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <hbotcompid.H>
#include <errl/errlentry.H>
namespace ERRORLOG
{
extern trace_desc_t* g_trac_errl;
//***************************************************************************
// Constructor
ErrlUD::ErrlUD(
const void * i_data,
uint64_t i_size,
compId_t i_compid,
uint8_t i_ver,
uint8_t i_sst ) :
ErrlSctn( ERRL_SID_USER_DEFINED, 0, i_ver, i_sst, i_compid ),
iv_pData( NULL ),
iv_Size( 0 )
{
uint64_t l_cb;
l_cb = addData( i_data, i_size );
if( 0 == l_cb )
{
// Rare.
TRACFCOMP( g_trac_errl, "ErrlUD::ErrlUD(): addData rets error");
}
}
/*****************************************************************************/
// Destructor
ErrlUD::~ErrlUD()
{
free( iv_pData );
}
/*****************************************************************************/
// Add data. This works the first time when there is no data and works for
// subsequent times when you want to append data. Return [new] size of buffer.
uint64_t ErrlUD::addData(const void *i_data, const uint64_t i_size)
{
// Expected new size of user data.
uint64_t l_newsize = iv_Size + i_size;
// Resize memory block
iv_pData = static_cast<uint8_t*>(realloc(iv_pData, l_newsize));
// Copy new data to new area, past existing data (if any)
memcpy( iv_pData + iv_Size, i_data, i_size );
// Save new size of the user-provided data. This will also
// be what this method returns.
iv_Size = l_newsize;
return iv_Size;
}
/*****************************************************************************/
// Data Export size
uint64_t ErrlUD::flatSize()
{
uint64_t l_rc = 0;
l_rc = iv_header.flatSize() + iv_Size;
// Round up to next nearest 4-byte boundary.
l_rc = ( l_rc + 3 ) & ~3;
return l_rc;
}
/*****************************************************************************/
// Data Export. Return how many bytes were written or zero on error.
uint64_t ErrlUD::flatten( void * o_pBuffer, const uint64_t i_cbBuffer )
{
uint64_t l_rc = 0;
uint64_t l_cb = 0;
uint8_t * pBuffer = static_cast<uint8_t *>(o_pBuffer);
uint64_t l_cbFlat = this->flatSize();
if ( i_cbBuffer >= l_cbFlat )
{
// Tell the PEL section header what is the new length.
iv_header.iv_slen = l_cbFlat;
// Flatten the PEL section header
l_cb = iv_header.flatten( pBuffer, i_cbBuffer );
pBuffer += l_cb;
// Followed by the user data
memcpy( pBuffer, iv_pData, iv_Size );
pBuffer += iv_Size;
// Buffer is rounded up to the nearst 4-byte boundary, pad with zeroes
for (uint64_t i = l_cb + iv_Size; i < l_cbFlat; i++)
{
*pBuffer++ = 0;
}
// return how many bytes were flattened
l_rc = l_cbFlat;
}
else
{
TRACFCOMP( g_trac_errl, "ErrlUD::flatten: buffer too small");
}
return l_rc;
}
uint64_t ErrlUD::unflatten( const void * i_buf )
{
const uint8_t * p =
static_cast<const uint8_t *>(i_buf);
p += iv_header.unflatten(p);
iv_Size = iv_header.iv_slen - iv_header.flatSize();
iv_pData = static_cast<uint8_t*>(realloc(iv_pData, iv_Size));
memcpy(iv_pData,p,iv_Size);
return flatSize();
}
} //namespace
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