"Fossies" - the Fresh Open Source Software Archive

Member "FunctionCheck-3.2.0/src/fcmanager/fc_memory_manager.h" (26 May 2012, 3326 Bytes) of package /linux/privat/old/FunctionCheck-3.2.0.tar.gz:

    1 /*
    2  * FunctionCheck profiler
    3  * (C) Copyright 2000-2012 Yannick Perret
    4  * 
    5  *  This program is free software; you can redistribute it and/or
    6  *  modify it under the terms of the GNU General Public License as
    7  *  published by the Free Software Foundation; either version 2 of the
    8  *  License, or (at your option) any later version.
    9  *
   10  *  This program is distributed in the hope that it will be useful,
   11  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
   12  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   13  *  General Public License for more details.
   14  *
   15  *  You should have received a copy of the GNU General Public License
   16  *  along with this program; if not, write to the Free Software
   17  *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
   18  */
   19 /** fc_memory_manager.h:  **/
   20 
   21 #ifndef __fc_memory_manager_h_
   22 #define __fc_memory_manager_h_
   23 
   24 #include <stdio.h>
   25 #include <stdlib.h>
   26 #include "fc_xhash.h"
   27 
   28 /** structure of memory list entries **/
   29 /* a such entry is created for each 'malloc/memalign'.
   30    for each realloc 'pointer' and 'realloc_place' are updated
   31    in case of free the entry is removed
   32    
   33    in case of free on a unknown entry (i.e. previously freed
   34      pointer) the entry is removed from the access table (hash-table)
   35      but not from the list (pointer/alloc place are used, and
   36      size is set to MAX_UINT)
   37 */
   38 #define FC_MAX_CALLSTACK 8
   39 
   40 typedef struct
   41 {
   42   void *pointer;      /* the pointer on the memory block */
   43   unsigned int size;  /* orig. size of the block */
   44   void *alloc_place;  /* addr in prog. space of the allocation */
   45   void *realloc_place;/* addr in prog. space of the last reallocation */
   46   int next;           /* next entry */
   47   int self;           /* our own index for optimization */
   48   void *alloc_stack[FC_MAX_CALLSTACK]; /* call-stack for alloc place (max 8) */
   49   char set;
   50 } FC_MEl;
   51 
   52 typedef struct
   53 {
   54   int nb_elements;
   55   int max_elements;
   56   int entry;
   57   FC_MEl *list;
   58   FC_Hash *hash;
   59 } FC_Memory;
   60 
   61 /* hum... this include MUST be here because some functions below
   62      use FC_Context structure, BUT FC_Context uses FC_Memory...
   63      so FC_Memory MUST be defined BEFORE including fc_context.h...
   64    In fact my .h have to be reorganized... */
   65 #include "fc_context.h"
   66 
   67 /* indicate the call-stack requested for memory actions */
   68 extern int fc_memory_stack_size;
   69 
   70 /* set the call-stack size requested */
   71 int fc_memory_set_stack_size(int size);
   72 
   73 /* create a memory */
   74 FC_Memory *fc_memory_create(int entry_size);
   75 
   76 /* destroy a memory */
   77 int fc_memory_delete(FC_Memory *mem);
   78 
   79 /* add an element in a memory/list (with reallocation if needed) and
   80      return the address of the element for the hash-table */
   81 FC_MEl *fc_memory_list_add(FC_Memory *mem);
   82 
   83 /* remove an element from the memory/list */
   84 int fc_memory_list_remove(FC_Memory *mem, FC_MEl *el);
   85 
   86 /* record a 'malloc' entry */
   87 int fc_memory_add_malloc(void *ctx, void *ptr, unsigned int size, void *where);
   88 
   89 /* record a 'memalign' entry */
   90 int fc_memory_add_memalign(void *ctx, void *ptr, unsigned int align, unsigned int size, void *where);
   91 
   92 /* record a 'free' action */
   93 int fc_memory_add_free(void *ctx, void *ptr, void *where);
   94 
   95 /* record a 'realloc' entry */
   96 int fc_memory_add_realloc(void *ctx, void *ptr, void *inc, unsigned int size, void *where);
   97 
   98 #endif /* __fc_memory_manager_h_ */