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/* edrErrLogLib - edrErrLogLib header file */
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/* Copyright (c) 2003-2004, 2009-2011 Wind River Systems, Inc.
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*
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* The right to copy, distribute, modify or otherwise make use of this software
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* may be licensed only pursuant to the terms of an applicable Wind River
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* license agreement.
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*/
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/*
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modification history
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--------------------
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01l,21jan11,cww Updated EDR_ERR_LOG_NODE data field for alignment
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(WIND00251544)
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01k,18aug10,cww Additional 64-bit updates
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01j,29apr10,pad Moved extern C statement after include statements.
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01i,09jun09,pcs Updated to add support for LP64 data model.
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01h,17sep04,md add prototypes for node protection functions
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01g,26aug04,md make record size configurable
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01f,05aug04,md added committed state tracking
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01e,30mar04,md bump payload size to 4096 bytes
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01d,16feb04,md general cleanup and documentation
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01c,06nov03,aim reworked iterators
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01b,05nov03,aim reworked for intLock/intUnlock
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01a,24oct03,aim created
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*/
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#ifndef __INCedrErrLogLib_h
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#define __INCedrErrLogLib_h
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#include <vxWorks.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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/*
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The structure of the error log in memory is as follows:
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+------------------------+ ----+
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| endianness | |
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| magic | |
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| version | |
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+-> | payloadSize | |
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| | nodeSize | | -- EDR_ERR_LOG_HEADER
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| | size | |
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| | nPages | |
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| | nHeaderPages | |
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| | *pageProtect | |
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| | osVersion | |
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| | cpuType | |
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| | reserved [32] | |
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| +------------------------+ ----+
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+--- | checksum |
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+------------------------+
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| modCount |
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+------------------------+
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| genCount |
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+------------------------+
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| bootCount |
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+------------------------+
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| missedErrors |
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+------------------------+
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| reserved [32] |
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+------------------------+
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+------------------------+ ----+
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| maxNodeCount | |
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| oldestNode | |
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| nextNode | |-- EDR_ERR_LOG_NODE_LIST
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| nodeCount | |
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| reserved [32] | |
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+------------------------+ |
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+------------------------+ |
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| status | ---------+
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| position | | |
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| genCount | | |
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| logGenCount | | |-- EDR_ERR_LOG_NODE
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| bootCount | | |
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| committed | | |
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| reserved [32] | | |
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| data [] | ---------+
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+------------------------+ |
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| status | |
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| position | |
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| genCount | |
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| logGenCount | |
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| bootCount | |
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| committed | |
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| reserved [32] | |
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| data [] | |
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+------------------------+ |
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| status | |
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| position | |
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| genCount | |
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| logGenCount | |
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| bootCount | |
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| committed | |
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| reserved [32] | |
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| data [] | |
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+------------------------+ |
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| status | |
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| position | |
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| genCount | |
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| logGenCount | |
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| bootCount | |
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| committed | |
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| reserved [32] | |
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| data [] | |
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+------------------------+ |
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| . | |
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| . | |
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| . | |
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| . | |
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| . | |
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+------------------------+ ----+
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*/
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/* default payload size for each record */
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#define EDR_ERR_LOG_PAYLOAD_SIZE 4096
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/* minimum payload size for each record */
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#define EDR_ERR_LOG_MIN_PAYLOAD_SIZE 512
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/*
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* We use sizeof(EDR_ERR_LOG_NODE) when calculating record addresses, so in
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* LP64 this value must be a multiple of 8 to avoid misaligned members in the
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* error records. The offset of the data field must be an even 8-byte
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* in LP64 for a similar reason.
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*/
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typedef struct edr_err_log_node
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{
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int status; /* current status of this node */
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UINT32 position; /* abs position of record in log */
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UINT32 genCount; /* generation count of node */
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UINT32 logGenCount; /* log gen count we belong to */
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UINT32 bootCount; /* boot count indicator */
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UINT32 committed; /* committed/uncommitted state */
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UINT32 reserved [32]; /* reserved for future use */
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long data[1]; /* payload */
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} EDR_ERR_LOG_NODE;
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typedef struct edr_err_log_node_list
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{
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int maxNodeCount; /* maximum number of nodes */
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int oldestNode; /* index of oldest node */
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int nextNode; /* index of next free node */
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int nodeCount; /* number of nodes[] in use */
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UINT32 reserved [32]; /* reserved for future use */
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EDR_ERR_LOG_NODE node [1]; /* variable-sized set of nodes */
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} EDR_ERR_LOG_NODE_LIST;
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typedef struct edr_err_log_header
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{
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int endianness; /* endianness identifier */
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int magic; /* log identifier */
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int version; /* log version number */
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int payloadSize; /* payload size (in bytes) */
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int nodeSize; /* node size (in bytes) */
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int size; /* log size (in bytes) */
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UINT32 nPages; /* log size (in pages) */
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UINT32 nHeaderPages; /* number of pages for header */
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UINT32 * pageProtect; /* page protection counts */
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UINT32 osVersion; /* version of OS/ED&R */
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UINT32 cpuType; /* WindRiver CPU type code */
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UINT32 reserved [32]; /* reserved for future use */
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} EDR_ERR_LOG_HEADER;
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typedef struct edr_err_log
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{
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EDR_ERR_LOG_HEADER header; /* log header */
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INT32 checksum; /* checksum for the header */
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UINT32 modCount; /* co-modification count */
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UINT32 genCount; /* generation count of error log */
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UINT32 bootCount; /* boot count indicator */
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UINT32 missedErrors; /* missed error count */
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UINT32 reserved [32]; /* reserved for future use */
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EDR_ERR_LOG_NODE_LIST nodeList; /* nodes; must be last member */
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} EDR_ERR_LOG;
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typedef struct edr_err_log_iter
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{
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EDR_ERR_LOG * pLog; /* log instance being iterated */
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int nodeCount; /* number of nodes to iterate */
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int nodeIndex; /* current node */
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int maxNodeCount; /* maximum node count */
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} EDR_ERR_LOG_ITER;
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EDR_ERR_LOG * edrErrLogCreate (void * pAddr, size_t size,
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size_t recordSize);
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BOOL edrErrLogIterCreate (EDR_ERR_LOG * pLog,
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EDR_ERR_LOG_ITER * pIter,
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int start, int count);
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EDR_ERR_LOG_NODE * edrErrLogIterNext (EDR_ERR_LOG_ITER * pIter);
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EDR_ERR_LOG * edrErrLogAttach (void * pAddr);
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BOOL edrErrLogClear (EDR_ERR_LOG * pLog);
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BOOL edrErrLogNodeCommit (EDR_ERR_LOG * pLog,
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EDR_ERR_LOG_NODE * pNode);
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EDR_ERR_LOG_NODE * edrErrLogNodeAlloc (EDR_ERR_LOG * pLog);
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int edrErrLogNodeCount (EDR_ERR_LOG * pLog);
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int edrErrLogMaxNodeCount (EDR_ERR_LOG * pLog);
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/* private routines */
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STATUS edrErrLogHeaderProtect (EDR_ERR_LOG * pLog);
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STATUS edrErrLogHeaderUnprotect (EDR_ERR_LOG * pLog);
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STATUS edrErrLogNodeProtect (EDR_ERR_LOG * pLog, EDR_ERR_LOG_NODE * pNode);
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STATUS edrErrLogNodeUnprotect (EDR_ERR_LOG * pLog, EDR_ERR_LOG_NODE * pNode);
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int edrErrLogNodePosition (EDR_ERR_LOG * pLog, EDR_ERR_LOG_NODE * pNode);
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BOOL edrErrLogValidate (EDR_ERR_LOG * pLog);
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#ifdef __cplusplus
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}
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#endif /* __cplusplus */
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#endif /* __INCedrErrLogLib_h */
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