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Minor modifications for testing.

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This commit is contained in:
counterpoint
2014-09-26 17:20:46 +01:00
parent fdab88cbb6
commit 32d66e6f84
10 changed files with 166 additions and 96 deletions
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20
server/include/buffer.h
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@ -40,6 +40,9 @@
* 16/07/2013 Massimiliano Pinto Added command type for the queue
* 10/07/2014 Mark Riddoch Addition of hints
* 15/07/2014 Mark Riddoch Added buffer properties
* 03/10/2014 Martin Brampton Pointer arithmetic standard conformity
* Add more buffer handling macros
* Add gwbuf_rtrim (handle chains)
*
* @endverbatim
*/
@ -147,19 +150,25 @@ typedef struct gwbuf {
/*<
* Macros to access the data in the buffers
*/
/*< First valid, uncomsumed byte in the buffer */
/*< First valid, unconsumed byte in the buffer */
#define GWBUF_DATA(b) ((b)->start)
/*< Number of bytes in the individual buffer */
#define GWBUF_LENGTH(b) ((unsigned int)(((uint8_t*)(b)->end) - ((uint8_t*)(b)->start)))
#define GWBUF_LENGTH(b) ((char *)(b)->end - (char *)(b)->start)
/*< Return the byte at offset byte from the start of the unconsumed portion of the buffer */
#define GWBUF_DATA_CHAR(b, byte) (GWBUF_LENGTH(b) < ((byte)+1) ? -1 : *(((char *)(b)->start)+4))
/*< Check that the data in a buffer has the SQL marker*/
#define GWBUF_IS_SQL(b) (0x03 == GWBUF_DATA_CHAR(b,4))
/*< True if all bytes in the buffer have been consumed */
#define GWBUF_EMPTY(b) ((b)->start == (b)->end)
#define GWBUF_EMPTY(b) ((char *)(b)->start >= (char *)(b)->end)
/*< Consume a number of bytes in the buffer */
#define GWBUF_CONSUME(b, bytes) (b)->start = (void*)((uint8_t*)(b)->start + (bytes))
#define GWBUF_CONSUME(b, bytes) ((b)->start = bytes > ((char *)(b)->end - (char *)(b)->start) ? (b)->end : (void *)((char *)(b)->start + (bytes)));
#define GWBUF_RTRIM(b, bytes) (b)->end = (void*)((uint8_t*)(b)->end - (bytes))
#define GWBUF_RTRIM(b, bytes) ((b)->end = bytes > ((char *)(b)->end - (char *)(b)->start) ? (b)->start : (void *)((char *)(b)->end - (bytes)));
#define GWBUF_TYPE(b) (b)->gwbuf_type
/*<
@ -171,6 +180,7 @@ extern GWBUF *gwbuf_clone(GWBUF *buf);
extern GWBUF *gwbuf_append(GWBUF *head, GWBUF *tail);
extern GWBUF *gwbuf_consume(GWBUF *head, unsigned int length);
extern GWBUF *gwbuf_trim(GWBUF *head, unsigned int length);
extern GWBUF *gwbuf_rtrim(GWBUF *head, unsigned int length);
extern unsigned int gwbuf_length(GWBUF *head);
extern GWBUF *gwbuf_clone_portion(GWBUF *head, size_t offset, size_t len);
extern GWBUF *gwbuf_clone_transform(GWBUF *head, gwbuf_type_t type);