Subversion Repositories planix.SVN

typedef struct Packet Packet;

typedef struct Mem Mem;

typedef struct Frag Frag;

enum {

	BigMemSize = MaxFragSize,

	SmallMemSize = BigMemSize/8,

	NLocalFrag = 2,

};

/* position to carve out of a Mem */

enum {

	PFront,

	PMiddle,

	PEnd,

};

struct Mem

{

	Lock lk;

	int ref;

	uchar *bp;

	uchar *ep;

	uchar *rp;

	uchar *wp;

	Mem *next;

};

enum {

	FragLocalFree,

	FragLocalAlloc,

	FragGlobal,

};

struct Frag

{

	int state;

	Mem *mem;

	uchar *rp;

	uchar *wp;

	Frag *next;

};

struct Packet

{

	int size;

	int asize;  /* allocated memmory - always greater than size */

	Packet *next;

	Frag *first;

	Frag *last;

	Frag local[NLocalFrag];

};