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annotate src/nucleus/er_defs.h @ 0:92470e5d0b9e

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src: partial import from FC Selenite
author Mychaela Falconia <falcon@freecalypso.org>
date Fri, 15 May 2020 01:28:16 +0000
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92470e5d0b9e src: partial import from FC Selenite
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2 #ifndef ER_DEFS_H
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3 #define ER_DEFS_H
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5 #ifdef NU_DEBUG_MEMORY
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7 /* NU_DEBUG_MEMORY can only service one memory pool each time it is
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8 compiled. It will examine the memory pool NU_DEBUG_POOL points to.*/
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9 #define NU_DEBUG_POOL System_Memory
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11 typedef struct ER_DEBUG_ALLOCATION_STRUCT
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12 {
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14 /* prev is the link needed to maintain a linked list of all the
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15 ER_DEBUG_ALLOCATION structures. The head of the list is the global
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16 variable ERD_RecentAllocation. */
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17 struct ER_DEBUG_ALLOCATION_STRUCT *prev;
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18 /* size is the number of bytes used for the users memory allocation */
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19 unsigned int size;
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20 /* Assignes each allocation an unique ID */
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21 unsigned long AllocSequenceCounter;
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22 /* line and file refer to the place in the code where the call to the
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23 allocation is made in the application. These variables are filled
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24 in with compiler specific macros. */
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25 unsigned long line;
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26 const char * file;
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27 /* head and foot contain the non-null terminated strings "HEAD" and
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28 "FOOT" so this module can spot some instances where pointers write
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29 to memory locations beyond thier bounds. data is the user's data
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30 which the allocation call is intended. */
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31 unsigned char head[4];
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32 unsigned char data[1];
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34 } ER_DEBUG_ALLOCATION;
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36 #endif /* NU_DEBUG_MEMORY */
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38 #endif /* ER_DEFS_H */
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