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/*
* include/haproxy/vars-t.h
* Macros and structures definitions for variables.
*
* Copyright (C) 2015 Thierry FOURNIER <tfournier@arpalert.org>
*
* 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 _HAPROXY_VARS_T_H
#define _HAPROXY_VARS_T_H
#include <haproxy/sample_data-t.h>
#include <haproxy/thread-t.h>
/* flags used when setting/clearing variables */
#define VF_CREATEONLY 0x00000001 // do nothing if the variable already exists
#define VF_PERMANENT 0x00000002 // variables known to the config parser
#define VF_COND_IFEXISTS 0x00000004 // only set variable if it already exists
#define VF_COND_IFNOTEXISTS 0x00000008 // only set variable if it did not exist yet
#define VF_COND_IFEMPTY 0x00000010 // only set variable if sample is empty
#define VF_COND_IFNOTEMPTY 0x00000020 // only set variable if sample is not empty
#define VF_COND_IFSET 0x00000040 // only set variable if its type is not SMP_TYPE_ANY
#define VF_COND_IFNOTSET 0x00000080 // only set variable if its type is ANY
#define VF_COND_IFGT 0x00000100 // only set variable if its value is greater than the sample's
#define VF_COND_IFLT 0x00000200 // only set variable if its value is less than the sample's
enum vars_scope {
SCOPE_SESS = 0,
SCOPE_TXN,
SCOPE_REQ,
SCOPE_RES,
SCOPE_PROC,
SCOPE_CHECK,
};
struct vars {
struct list head;
enum vars_scope scope;
unsigned int size;
__decl_thread(HA_RWLOCK_T rwlock);
};
/* This struct describes a variable as found in an arg_data */
struct var_desc {
uint64_t name_hash;
enum vars_scope scope;
};
struct var {
struct list l; /* Used for chaining vars. */
uint64_t name_hash; /* XXH3() of the variable's name */
uint flags; // VF_*
/* 32-bit hole here */
struct sample_data data; /* data storage. */
};
#endif
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