plan9fox/sys/include/pool.h

56 lines
1.2 KiB
C

typedef struct Pool Pool;
struct Pool {
char* name;
uintptr maxsize;
uintptr cursize;
uintptr curfree;
uintptr curalloc;
ulong minarena; /* smallest size of new arena */
ulong quantum; /* allocated blocks should be multiple of */
ulong minblock; /* smallest newly allocated block */
void* freeroot; /* actually Free* */
void* arenalist; /* actually Arena* */
void* (*alloc)(ulong);
int (*merge)(void*, void*);
void (*move)(void* from, void* to);
int flags;
int nfree;
int lastcompact;
void (*lock)(Pool*);
void (*unlock)(Pool*);
void (*print)(Pool*, char*, ...);
void (*panic)(Pool*, char*, ...);
void (*logstack)(Pool*);
void* private;
};
extern void* poolalloc(Pool*, ulong);
extern void* poolallocalign(Pool*, ulong, ulong, long, ulong);
extern void poolfree(Pool*, void*);
extern ulong poolmsize(Pool*, void*);
extern void* poolrealloc(Pool*, void*, ulong);
extern void poolcheck(Pool*);
extern int poolcompact(Pool*);
extern void poolblockcheck(Pool*, void*);
extern void pooldump(Pool*);
extern Pool* mainmem;
extern Pool* imagmem;
enum { /* flags */
POOL_ANTAGONISM = 1<<0,
POOL_PARANOIA = 1<<1,
POOL_VERBOSITY = 1<<2,
POOL_DEBUGGING = 1<<3,
POOL_LOGGING = 1<<4,
POOL_TOLERANCE = 1<<5,
POOL_NOREUSE = 1<<6,
};