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463 lines
13 KiB
C
463 lines
13 KiB
C
/*
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===========================================================================
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Copyright (C) 1999-2005 Id Software, Inc.
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This file is part of Quake III Arena source code.
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Quake III Arena source code is free software; you can redistribute it
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and/or modify it under the terms of the GNU General Public License as
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published by the Free Software Foundation; either version 2 of the License,
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or (at your option) any later version.
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Quake III Arena source code is distributed in the hope that it will be
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useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with Foobar; if not, write to the Free Software
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Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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===========================================================================
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*/
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/*****************************************************************************
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* name: l_memory.c
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*
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* desc: memory allocation
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*
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* $Archive: /MissionPack/code/botlib/l_memory.c $
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*
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*****************************************************************************/
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#include "../game/q_shared.h"
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#include "../game/botlib.h"
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#include "l_log.h"
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#include "be_interface.h"
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//#define MEMDEBUG
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//#define MEMORYMANEGER
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#define MEM_ID 0x12345678l
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#define HUNK_ID 0x87654321l
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int allocatedmemory;
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int totalmemorysize;
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int numblocks;
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#ifdef MEMORYMANEGER
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typedef struct memoryblock_s
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{
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unsigned long int id;
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void *ptr;
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int size;
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#ifdef MEMDEBUG
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char *label;
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char *file;
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int line;
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#endif //MEMDEBUG
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struct memoryblock_s *prev, *next;
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} memoryblock_t;
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memoryblock_t *memory;
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//===========================================================================
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//
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// Parameter: -
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// Returns: -
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// Changes Globals: -
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//===========================================================================
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void LinkMemoryBlock(memoryblock_t *block)
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{
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block->prev = NULL;
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block->next = memory;
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if (memory) memory->prev = block;
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memory = block;
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} //end of the function LinkMemoryBlock
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//===========================================================================
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//
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// Parameter: -
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// Returns: -
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// Changes Globals: -
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//===========================================================================
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void UnlinkMemoryBlock(memoryblock_t *block)
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{
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if (block->prev) block->prev->next = block->next;
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else memory = block->next;
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if (block->next) block->next->prev = block->prev;
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} //end of the function UnlinkMemoryBlock
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//===========================================================================
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//
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// Parameter: -
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// Returns: -
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// Changes Globals: -
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//===========================================================================
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#ifdef MEMDEBUG
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void *GetMemoryDebug(unsigned long size, char *label, char *file, int line)
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#else
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void *GetMemory(unsigned long size)
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#endif //MEMDEBUG
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{
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void *ptr;
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memoryblock_t *block;
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assert(botimport.GetMemory); // bk001129 - was NULL'ed
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ptr = botimport.GetMemory(size + sizeof(memoryblock_t));
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block = (memoryblock_t *) ptr;
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block->id = MEM_ID;
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block->ptr = (char *) ptr + sizeof(memoryblock_t);
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block->size = size + sizeof(memoryblock_t);
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#ifdef MEMDEBUG
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block->label = label;
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block->file = file;
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block->line = line;
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#endif //MEMDEBUG
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LinkMemoryBlock(block);
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allocatedmemory += block->size;
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totalmemorysize += block->size + sizeof(memoryblock_t);
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numblocks++;
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return block->ptr;
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} //end of the function GetMemoryDebug
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//===========================================================================
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//
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// Parameter: -
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// Returns: -
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// Changes Globals: -
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//===========================================================================
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#ifdef MEMDEBUG
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void *GetClearedMemoryDebug(unsigned long size, char *label, char *file, int line)
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#else
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void *GetClearedMemory(unsigned long size)
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#endif //MEMDEBUG
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{
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void *ptr;
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#ifdef MEMDEBUG
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ptr = GetMemoryDebug(size, label, file, line);
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#else
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ptr = GetMemory(size);
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#endif //MEMDEBUG
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Com_Memset(ptr, 0, size);
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return ptr;
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} //end of the function GetClearedMemory
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//===========================================================================
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//
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// Parameter: -
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// Returns: -
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// Changes Globals: -
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//===========================================================================
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#ifdef MEMDEBUG
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void *GetHunkMemoryDebug(unsigned long size, char *label, char *file, int line)
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#else
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void *GetHunkMemory(unsigned long size)
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#endif //MEMDEBUG
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{
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void *ptr;
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memoryblock_t *block;
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ptr = botimport.HunkAlloc(size + sizeof(memoryblock_t));
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block = (memoryblock_t *) ptr;
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block->id = HUNK_ID;
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block->ptr = (char *) ptr + sizeof(memoryblock_t);
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block->size = size + sizeof(memoryblock_t);
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#ifdef MEMDEBUG
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block->label = label;
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block->file = file;
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block->line = line;
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#endif //MEMDEBUG
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LinkMemoryBlock(block);
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allocatedmemory += block->size;
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totalmemorysize += block->size + sizeof(memoryblock_t);
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numblocks++;
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return block->ptr;
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} //end of the function GetHunkMemoryDebug
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//===========================================================================
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//
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// Parameter: -
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// Returns: -
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// Changes Globals: -
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//===========================================================================
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#ifdef MEMDEBUG
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void *GetClearedHunkMemoryDebug(unsigned long size, char *label, char *file, int line)
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#else
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void *GetClearedHunkMemory(unsigned long size)
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#endif //MEMDEBUG
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{
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void *ptr;
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#ifdef MEMDEBUG
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ptr = GetHunkMemoryDebug(size, label, file, line);
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#else
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ptr = GetHunkMemory(size);
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#endif //MEMDEBUG
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Com_Memset(ptr, 0, size);
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return ptr;
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} //end of the function GetClearedHunkMemory
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//===========================================================================
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//
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// Parameter: -
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// Returns: -
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// Changes Globals: -
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//===========================================================================
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memoryblock_t *BlockFromPointer(void *ptr, char *str)
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{
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memoryblock_t *block;
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if (!ptr)
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{
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#ifdef MEMDEBUG
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//char *crash = (char *) NULL;
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//crash[0] = 1;
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botimport.Print(PRT_FATAL, "%s: NULL pointer\n", str);
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#endif // MEMDEBUG
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return NULL;
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} //end if
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block = (memoryblock_t *) ((char *) ptr - sizeof(memoryblock_t));
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if (block->id != MEM_ID && block->id != HUNK_ID)
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{
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botimport.Print(PRT_FATAL, "%s: invalid memory block\n", str);
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return NULL;
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} //end if
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if (block->ptr != ptr)
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{
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botimport.Print(PRT_FATAL, "%s: memory block pointer invalid\n", str);
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return NULL;
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} //end if
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return block;
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} //end of the function BlockFromPointer
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//===========================================================================
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//
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// Parameter: -
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// Returns: -
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// Changes Globals: -
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//===========================================================================
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void FreeMemory(void *ptr)
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{
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memoryblock_t *block;
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block = BlockFromPointer(ptr, "FreeMemory");
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if (!block) return;
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UnlinkMemoryBlock(block);
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allocatedmemory -= block->size;
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totalmemorysize -= block->size + sizeof(memoryblock_t);
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numblocks--;
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//
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if (block->id == MEM_ID)
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{
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botimport.FreeMemory(block);
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} //end if
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} //end of the function FreeMemory
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//===========================================================================
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//
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// Parameter: -
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// Returns: -
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// Changes Globals: -
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//===========================================================================
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int AvailableMemory(void)
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{
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return botimport.AvailableMemory();
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} //end of the function AvailableMemory
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//===========================================================================
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//
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// Parameter: -
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// Returns: -
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// Changes Globals: -
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//===========================================================================
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int MemoryByteSize(void *ptr)
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{
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memoryblock_t *block;
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block = BlockFromPointer(ptr, "MemoryByteSize");
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if (!block) return 0;
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return block->size;
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} //end of the function MemoryByteSize
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//===========================================================================
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//
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// Parameter: -
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// Returns: -
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// Changes Globals: -
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//===========================================================================
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void PrintUsedMemorySize(void)
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{
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botimport.Print(PRT_MESSAGE, "total allocated memory: %d KB\n", allocatedmemory >> 10);
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botimport.Print(PRT_MESSAGE, "total botlib memory: %d KB\n", totalmemorysize >> 10);
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botimport.Print(PRT_MESSAGE, "total memory blocks: %d\n", numblocks);
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} //end of the function PrintUsedMemorySize
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//===========================================================================
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//
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// Parameter: -
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// Returns: -
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// Changes Globals: -
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//===========================================================================
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void PrintMemoryLabels(void)
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{
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memoryblock_t *block;
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int i;
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PrintUsedMemorySize();
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i = 0;
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Log_Write("============= Botlib memory log ==============\r\n");
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Log_Write("\r\n");
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for (block = memory; block; block = block->next)
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{
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#ifdef MEMDEBUG
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if (block->id == HUNK_ID)
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{
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Log_Write("%6d, hunk %p, %8d: %24s line %6d: %s\r\n", i, block->ptr, block->size, block->file, block->line, block->label);
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} //end if
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else
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{
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Log_Write("%6d, %p, %8d: %24s line %6d: %s\r\n", i, block->ptr, block->size, block->file, block->line, block->label);
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} //end else
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#endif //MEMDEBUG
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i++;
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} //end for
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} //end of the function PrintMemoryLabels
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//===========================================================================
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//
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// Parameter: -
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// Returns: -
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// Changes Globals: -
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//===========================================================================
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void DumpMemory(void)
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{
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memoryblock_t *block;
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for (block = memory; block; block = memory)
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{
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FreeMemory(block->ptr);
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} //end for
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totalmemorysize = 0;
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allocatedmemory = 0;
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} //end of the function DumpMemory
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#else
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//===========================================================================
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//
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// Parameter: -
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// Returns: -
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// Changes Globals: -
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//===========================================================================
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#ifdef MEMDEBUG
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void *GetMemoryDebug(unsigned long size, char *label, char *file, int line)
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#else
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void *GetMemory(unsigned long size)
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#endif //MEMDEBUG
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{
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void *ptr;
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unsigned long int *memid;
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ptr = botimport.GetMemory(size + sizeof(unsigned long int));
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if (!ptr) return NULL;
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memid = (unsigned long int *) ptr;
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*memid = MEM_ID;
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return (unsigned long int *) ((char *) ptr + sizeof(unsigned long int));
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} //end of the function GetMemory
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//===========================================================================
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//
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// Parameter: -
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// Returns: -
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// Changes Globals: -
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//===========================================================================
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#ifdef MEMDEBUG
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void *GetClearedMemoryDebug(unsigned long size, char *label, char *file, int line)
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#else
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void *GetClearedMemory(unsigned long size)
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#endif //MEMDEBUG
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{
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void *ptr;
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#ifdef MEMDEBUG
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ptr = GetMemoryDebug(size, label, file, line);
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#else
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ptr = GetMemory(size);
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#endif //MEMDEBUG
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Com_Memset(ptr, 0, size);
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return ptr;
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} //end of the function GetClearedMemory
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//===========================================================================
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//
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// Parameter: -
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// Returns: -
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// Changes Globals: -
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//===========================================================================
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#ifdef MEMDEBUG
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void *GetHunkMemoryDebug(unsigned long size, char *label, char *file, int line)
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#else
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void *GetHunkMemory(unsigned long size)
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#endif //MEMDEBUG
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{
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void *ptr;
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unsigned long int *memid;
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ptr = botimport.HunkAlloc(size + sizeof(unsigned long int));
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if (!ptr) return NULL;
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memid = (unsigned long int *) ptr;
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*memid = HUNK_ID;
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return (unsigned long int *) ((char *) ptr + sizeof(unsigned long int));
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} //end of the function GetHunkMemory
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//===========================================================================
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//
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// Parameter: -
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// Returns: -
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// Changes Globals: -
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//===========================================================================
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#ifdef MEMDEBUG
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void *GetClearedHunkMemoryDebug(unsigned long size, char *label, char *file, int line)
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#else
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void *GetClearedHunkMemory(unsigned long size)
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#endif //MEMDEBUG
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{
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void *ptr;
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#ifdef MEMDEBUG
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ptr = GetHunkMemoryDebug(size, label, file, line);
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#else
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ptr = GetHunkMemory(size);
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#endif //MEMDEBUG
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Com_Memset(ptr, 0, size);
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return ptr;
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} //end of the function GetClearedHunkMemory
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//===========================================================================
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//
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// Parameter: -
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// Returns: -
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// Changes Globals: -
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//===========================================================================
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void FreeMemory(void *ptr)
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{
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unsigned long int *memid;
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memid = (unsigned long int *) ((char *) ptr - sizeof(unsigned long int));
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if (*memid == MEM_ID)
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{
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botimport.FreeMemory(memid);
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} //end if
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} //end of the function FreeMemory
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//===========================================================================
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//
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// Parameter: -
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// Returns: -
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// Changes Globals: -
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//===========================================================================
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int AvailableMemory(void)
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{
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return botimport.AvailableMemory();
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} //end of the function AvailableMemory
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//===========================================================================
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//
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// Parameter: -
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// Returns: -
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// Changes Globals: -
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//===========================================================================
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void PrintUsedMemorySize(void)
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{
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} //end of the function PrintUsedMemorySize
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//===========================================================================
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//
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// Parameter: -
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// Returns: -
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// Changes Globals: -
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//===========================================================================
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void PrintMemoryLabels(void)
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{
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} //end of the function PrintMemoryLabels
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#endif
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