Source code of Windows XP (NT5)
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
|
|
/* bufpool.h */
#ifndef BUFPOOL
#define BUFPOOL
#define NBLOCKS 32
typedef enum { is_allocated = 0xf3a1, is_free = 0xf1a2 } Magic;
typedef struct _buffer { struct _buffer *next; /* next buffer on free list */} Buffer ;
typedef struct Pool { Buffer *freelist; /* linked list of free buffers */ char *blocklist[NBLOCKS]; /* blocks of malloced memory */ int nextblock; /* next free block index */ char *curblock; /* last malloced block */ int buffersize; /* bytes per buffer */ int nextsize; /* size of next block of memory */ int nextfree; /* byte offset past next free buffer */#ifndef NDEBUG
char *name; /* name of the pool */ Magic magic; /* marker for valid pool */#endif
} Pool;
extern Pool *__gl_new_pool( int, int, char * );extern char *__gl_new_buffer( Pool * );extern void __gl_free_buffer( Pool *, void * );extern void __gl_clear_pool( Pool * );#endif
|
