mirror of
https://github.com/haproxy/haproxy.git
synced 2026-02-10 14:23:37 -05:00
2df28e8110
It makes more sense to store the list of analysers in the buffer than in the session since they are precisely plugged onto one buffer.
104 lines
4.2 KiB
C
104 lines
4.2 KiB
C
/*
|
|
include/types/buffers.h
|
|
Buffer management definitions, macros and inline functions.
|
|
|
|
Copyright (C) 2000-2008 Willy Tarreau - w@1wt.eu
|
|
|
|
This library is free software; you can redistribute it and/or
|
|
modify it under the terms of the GNU Lesser General Public
|
|
License as published by the Free Software Foundation, version 2.1
|
|
exclusively.
|
|
|
|
This library is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
Lesser General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Lesser General Public
|
|
License along with this library; if not, write to the Free Software
|
|
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
|
|
*/
|
|
|
|
#ifndef _TYPES_BUFFERS_H
|
|
#define _TYPES_BUFFERS_H
|
|
|
|
#include <common/config.h>
|
|
#include <common/memory.h>
|
|
|
|
/* The BF_* macros designate Buffer Flags, which may be ORed in the bit field
|
|
* member 'flags' in struct buffer. Some of them are persistent (BF_SHUT*),
|
|
* some of them (BF_EMPTY,BF_FULL) may only be set by the low-level read/write
|
|
* functions as well as those who change the buffer's read limit.
|
|
*/
|
|
#define BF_EMPTY 1 /* buffer is empty */
|
|
#define BF_FULL 2 /* buffer cannot accept any more data (l >= rlim-data) */
|
|
|
|
#define BF_SHUTR 4 /* producer has already shut down */
|
|
#define BF_SHUTW 8 /* consumer has already shut down */
|
|
|
|
#define BF_PARTIAL_READ 16
|
|
#define BF_COMPLETE_READ 32
|
|
#define BF_READ_ERROR 64
|
|
#define BF_READ_NULL 128
|
|
#define BF_READ_STATUS (BF_PARTIAL_READ|BF_COMPLETE_READ|BF_READ_ERROR|BF_READ_NULL)
|
|
#define BF_CLEAR_READ (~BF_READ_STATUS)
|
|
|
|
#define BF_PARTIAL_WRITE 256
|
|
#define BF_COMPLETE_WRITE 512
|
|
#define BF_WRITE_ERROR 1024
|
|
#define BF_WRITE_NULL 2048
|
|
#define BF_WRITE_STATUS (BF_PARTIAL_WRITE|BF_COMPLETE_WRITE|BF_WRITE_ERROR|BF_WRITE_NULL)
|
|
#define BF_CLEAR_WRITE (~BF_WRITE_STATUS)
|
|
|
|
#define BF_STREAMER 4096
|
|
#define BF_STREAMER_FAST 8192
|
|
|
|
#define BF_MAY_FORWARD 16384 /* consumer side is allowed to forward the data */
|
|
#define BF_READ_TIMEOUT 32768 /* timeout while waiting for producer */
|
|
#define BF_WRITE_TIMEOUT 65536 /* timeout while waiting for consumer */
|
|
|
|
|
|
/* Analysers (buffer->analysers).
|
|
* Those bits indicate that there are some processing to do on the buffer
|
|
* contents. It will probably evolved into a linked list later. Those
|
|
* analysers could be compared to higher level processors.
|
|
* The field is blanked by buffer_init() and only by analysers themselves
|
|
* afterwards.
|
|
*/
|
|
#define AN_REQ_INSPECT 0x00000001 /* inspect request contents */
|
|
#define AN_REQ_HTTP_HDR 0x00000002 /* inspect HTTP request headers */
|
|
#define AN_REQ_HTTP_BODY 0x00000004 /* inspect HTTP request body */
|
|
#define AN_RTR_HTTP_HDR 0x00000008 /* inspect HTTP response headers */
|
|
|
|
/* describes a chunk of string */
|
|
struct chunk {
|
|
char *str; /* beginning of the string itself. Might not be 0-terminated */
|
|
int len; /* size of the string from first to last char. <0 = uninit. */
|
|
};
|
|
|
|
struct buffer {
|
|
unsigned int flags; /* BF_* */
|
|
int rex; /* expiration date for a read, in ticks */
|
|
int wex; /* expiration date for a write or connect, in ticks */
|
|
int rto; /* read timeout, in ticks */
|
|
int wto; /* write timeout, in ticks */
|
|
int cto; /* connect timeout, in ticks */
|
|
unsigned int l; /* data length */
|
|
char *r, *w, *lr; /* read ptr, write ptr, last read */
|
|
char *rlim; /* read limit, used for header rewriting */
|
|
unsigned int analysers; /* bit field indicating what to do on the buffer */
|
|
unsigned char xfer_large; /* number of consecutive large xfers */
|
|
unsigned char xfer_small; /* number of consecutive small xfers */
|
|
unsigned long long total; /* total data read */
|
|
char data[BUFSIZE];
|
|
};
|
|
|
|
|
|
#endif /* _TYPES_BUFFERS_H */
|
|
|
|
/*
|
|
* Local variables:
|
|
* c-indent-level: 8
|
|
* c-basic-offset: 8
|
|
* End:
|
|
*/
|