src/conv-core/memory-isomalloc.h

   1 /*Contains declarations used by memory-isomalloc.c to provide
   2 migratable heap allocation to arbitrary clients.
   3 */
   4 #ifndef CMK_MEMORY_ISOMALLOC_H
   5 #define CMK_MEMORY_ISOMALLOC_H
   6
   7 /*Grab CmiIsomalloc* protoypes, and CmiIsomallocBlock*/
   8 #include <stddef.h>
   9 #include "conv-config.h"
  10
  11 #ifdef __cplusplus
  12 extern "C" {
  13 #endif
  14
  15 /****** Isomalloc: Migratable Memory Allocation ********/
  16 /*Simple block-by-block interface:*/
  17 void  CmiIsomallocPup(pup_er p,void **block);
  18 void  CmiIsomallocFree(void *block);
  19 int   CmiIsomallocEnabled();
  20 void  CmiEnableIsomalloc();
  21 void  CmiDisableIsomalloc();
  22
  23 CmiInt8   CmiIsomallocLength(void *block);
  24 int   CmiIsomallocInRange(void *addr);
  25
  26 #if CMK_USE_MEMPOOL_ISOMALLOC
  27 struct mempool_type;
  28 #endif
  29
  30 /*List-of-blocks interface:*/
  31 struct CmiIsomallocBlockList {/*Circular doubly-linked list of blocks:*/
  32   struct CmiIsomallocBlockList *prev, *next;
  33 #if CMK_USE_MEMPOOL_ISOMALLOC
  34   struct mempool_type *pool;
  35 #endif
  36   /*actual data of block follows here...*/
  37 };
  38 typedef struct CmiIsomallocBlockList CmiIsomallocBlockList;
  39
  40 /*Build/pup/destroy an entire blockList.*/
  41 CmiIsomallocBlockList *CmiIsomallocBlockListNew(void);
  42 void CmiIsomallocBlockListPup(pup_er p, CmiIsomallocBlockList **l);
  43 void CmiIsomallocBlockListDelete(CmiIsomallocBlockList *l);
  44
  45 /*Allocate/free a block from this blockList*/
  46 void *CmiIsomallocBlockListMalloc(CmiIsomallocBlockList *l,size_t nBytes);
  47 void *CmiIsomallocBlockListMallocAlign(CmiIsomallocBlockList *l,size_t align,size_t nBytes);
  48 void CmiIsomallocBlockListFree(void *doomedMallocedBlock);
  49
  50 /* Allocate a block from the blockList associated with a thread */
  51 void *CmiIsomallocMallocForThread(CthThread th, size_t nBytes);
  52 void *CmiIsomallocMallocAlignForThread(CthThread th, size_t align, size_t nBytes);
  53
  54 /*Allocate non-migratable memory*/
  55 void *malloc_nomigrate(size_t size);
  56 void free_nomigrate(void *mem);
  57
  58 /*Reentrant versions of memory routines, used inside isomalloc*/
  59 void *malloc_reentrant(size_t size);
  60 void free_reentrant(void *mem);
  61
  62 /*Make this blockList active (returns the old blocklist).*/
  63 CmiIsomallocBlockList *CmiIsomallocBlockListActivate(CmiIsomallocBlockList *l);
  64 CmiIsomallocBlockList *CmiIsomallocBlockListCurrent();
  65
  66 #ifdef __cplusplus
  67 }
  68 #endif
  69
  70 #endif
  71