mirror of
https://github.com/ondra-novak/gates_of_skeldal.git
synced 2025-07-04 21:50:38 -04:00
131 lines
4.4 KiB
C
131 lines
4.4 KiB
C
//#define LOGFILE
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#include <stdio.h>
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#include "logfile.h"
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#ifndef _MEMMAN_H_
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#define _MEMMAN_H_
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#ifdef __cplusplus
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extern "C" {
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#endif
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///decodes block if needed
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/**
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* @param src source data
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* @param size source size - you need to write own size if data has been converted
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* @param pointer either to src or newly allocated block with replacement (must be allocated by malloc)
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*/
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typedef const void *(*ABLOCK_DECODEPROC)(const void *src, int32_t *size);
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#define freemem(size) free(size);
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//#define malloc(size) getmem(size)
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#define New(typ) (typ *)getmem(sizeof(typ))
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#define NewArr(typ,count) (typ *)getmem(sizeof(typ)*(count))
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typedef struct meminfo {
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unsigned LargestBlockAvail;
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unsigned MaxUnlockedPage;
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unsigned LargestLockablePage;
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unsigned LinAddrSpace;
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unsigned NumFreePagesAvail;
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unsigned NumPhysicalPagesFree;
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unsigned TotalPhysicalPages;
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unsigned FreeLinAddrSpace;
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unsigned SizeOfPageFile;
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unsigned Reserved[3];
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} MEMINFO;
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typedef struct thandle_data
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{
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char src_file[12]; //12
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int32_t seekpos; //16
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const void *blockdata; //20
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char flags; //21
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uint8_t path; //22
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short status;
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ABLOCK_DECODEPROC loadproc;
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unsigned short lockcount; //32
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uint32_t counter;
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uint32_t size;
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}THANDLE_DATA;
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#define BK_MAJOR_HANDLES 256 // maximalni pocet skupin rukojeti
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#define BK_MINOR_HANDLES 256 // pocet rukojeti v jedne skupine
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typedef THANDLE_DATA handle_list[BK_MINOR_HANDLES];
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typedef handle_list *handle_groups[BK_MAJOR_HANDLES];
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//status
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#define BK_NOT_USED 0
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#define BK_NOT_LOADED 1
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#define BK_PRESENT 2
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#define BK_SWAPED 3
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#define BK_DIRLIST 4 //znaci ze handle je docasne pouzito pro adresarovy list
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//pokud je status=4 je automaticky chapan jako 1.
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#define BK_SAME_AS 5
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//flags
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#define BK_LOCKED 1
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#define BK_SWAPABLE 2
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#define BK_SHARED 4
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#define BK_PRELOAD 8
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#define BK_HSWAP 16
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#define BK_READONLY 32
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//extern char *const * mman_pathlist; //tento pointer musi byt naplnen ukazatelem na tabulku cest
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extern int memman_handle; //cislo handle naposled zpracovavaneho prikazem ablock
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extern char mman_patch; //jednicka zapina moznost pouziti patchu
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void *getmem(int32_t size); //alokace pameti pres memman. alokovat pomoci malloc lze ale hrozi nebezpeci ze vrati NULL
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void *grealloc(void *m,int32_t size); //realokace pameti pres memman
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void *load_file(const char *filename); //obycejne natahne soubor do pameti a vrati ukazatel.
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void init_manager(const char *filename,const char *swp); //inicializuje manager. Jmeno filename i swapname nejsou povinne (musi byt NULL kdyz nejsou pouzity)
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void def_mman_group_table(const char ** ); //define pointer to table of paths, for each group there is path
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THANDLE_DATA *def_handle(int handle,const char *filename,ABLOCK_DECODEPROC decompress,char path); //deklaruje rukojet. promenna decompress je ukazatel na funkci ktera upravi data pred vracenim ukazatele
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const void *ablock(int handle); //vraci ukazatel bloku spojeneho s handlem
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void *ablock_copy(int handle); //vraci ukazatel bloku spojeneho s handlem
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void alock(int handle); //zamyka blok
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void aunlock(int handle); //odmyka blok
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void aswap(int handle); //zapina swapovani pro blok
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void aunswap(int handle); //vypina swapovani pro blok
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//void free(void); //free
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void close_manager(void); //uzavre manager a uvolni veskerou pamet
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void undef_handle(int handle); //uvolni hadle k dalsimu pouziti
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THANDLE_DATA *zneplatnit_block(int handle); //zneplatni data bloku
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THANDLE_DATA *get_handle(int handle); //vraci informace o rukojeti
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int find_handle(const char *name,void *decomp); //hleda mezi rukojeti stejnou definici
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int test_file_exist(int group,char *filename); //testuje zda soubor existuje v ramci mmanageru
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void *afile(char *filename,int group,int32_t *blocksize); //nahraje do pameti soubor registrovany v ramci mmanageru
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int32_t get_handle_size(int handle);
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//void get_mem_info(MEMORYSTATUS *mem);
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void ablock_free(const void *ptr);
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int read_group(int index);
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char add_patch_file(char *filename); //pripojuje zaplatu
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FILE *afiletemp(char *filename, int group);
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#define MMA_READ 1
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#define MMA_SWAP 2
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#define MMA_SWAP_READ 3
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#define MMA_FREE 4
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#define MMR_FIRST 0
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#define MMR_NEXT 1
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extern void (*mman_action)(int action); //udalost volajici se pri akci mmanagera.
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void display_status(void); //zobrazi na display status memmanageru
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#ifdef __cplusplus
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}
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#endif
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#endif
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