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likewise 2003-04-03 19:11:02 +00:00
parent 6d3149714f
commit e36394e6cc
1 changed files with 9 additions and 9 deletions
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18
src/include/lwip/pbuf.h
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@ -55,28 +55,28 @@ typedef enum {
/* Definitions for the pbuf flag field (these are not the flags that /* Definitions for the pbuf flag field (these are not the flags that
are passed to pbuf_alloc()). */ are passed to pbuf_alloc()). */
#define PBUF_FLAG_RAM 0x00 /* Flags that pbuf data is stored in RAM. */ #define PBUF_FLAG_RAM 0x00 /* Flags that pbuf data is stored in RAM */
#define PBUF_FLAG_ROM 0x01 /* Flags that pbuf data is stored in ROM. */ #define PBUF_FLAG_ROM 0x01 /* Flags that pbuf data is stored in ROM */
#define PBUF_FLAG_POOL 0x02 /* Flags that the pbuf comes from the #define PBUF_FLAG_POOL 0x02 /* Flags that the pbuf comes from the pbuf pool */
pbuf pool. */ #define PBUF_FLAG_REF 0x04 /* Flags thet the pbuf payload refers to RAM */
#define PBUF_FLAG_REF 0x04
struct pbuf { struct pbuf {
/** next pbuf in singly linked pbuf chain */
struct pbuf *next; struct pbuf *next;
/** pointer to the actual data in the buffer. */ /** pointer to the actual data in the buffer */
void *payload; void *payload;
/** /**
* total length of this buffer and all chained buffers. * total length of this buffer and all next buffers in chain
* invariant: (p->tot_len == p->len + (p->next? p->next->tot_len: 0) * invariant: p->tot_len == p->len + (p->next? p->next->tot_len: 0)
*/ */
u16_t tot_len; u16_t tot_len;
/* length of this buffer */ /* length of this buffer */
u16_t len; u16_t len;
/* flags */ /* flags telling the type of pbuf */
u16_t flags; u16_t flags;
/** /**