1 files changed, 71 insertions, 0 deletions
diff --git a/include/haproxy/vars-t.h b/include/haproxy/vars-t.h
new file mode 100644
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+++ b/include/haproxy/vars-t.h
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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