X-Git-Url: https://git.tokkee.org/?p=sysdb.git;a=blobdiff_plain;f=src%2Fcore%2Fstore-private.h;h=1342a5b58fca93508d93f00571753be9b7e3d5db;hp=64a70c31059f519f432a5ea40227441956bd7d25;hb=d8d03b18f0e0a4c39e2adec3cc2cd093d52c1f93;hpb=b0af45ebf920955095b9fdeaddbde0107c6e519f

diff --git a/src/core/store-private.h b/src/core/store-private.h
index 64a70c3..1342a5b 100644
--- a/src/core/store-private.h
+++ b/src/core/store-private.h
@@ -33,6 +33,7 @@
 #define SDB_CORE_STORE_PRIVATE_H 1
 
 #include "core/store.h"
+#include "utils/avltree.h"
 
 #include <sys/types.h>
 #include <regex.h>
@@ -41,7 +42,11 @@
 extern "C" {
 #endif
 
-struct sdb_store_base {
+/*
+ * core types
+ */
+
+struct sdb_store_obj {
 	sdb_object_t super;
 
 	/* object type */
@@ -50,53 +55,149 @@ struct sdb_store_base {
 	/* common meta information */
 	sdb_time_t last_update;
 	sdb_time_t interval; /* moving average */
-	sdb_store_base_t *parent;
+	char **backends;
+	size_t backends_num;
+	sdb_store_obj_t *parent;
 };
-#define STORE_BASE(obj) ((sdb_store_base_t *)(obj))
-#define STORE_CONST_BASE(obj) ((const sdb_store_base_t *)(obj))
+#define STORE_OBJ(obj) ((sdb_store_obj_t *)(obj))
+#define STORE_CONST_OBJ(obj) ((const sdb_store_obj_t *)(obj))
 
 typedef struct {
-	sdb_store_base_t super;
+	sdb_store_obj_t super;
 
 	sdb_data_t value;
 } sdb_attribute_t;
-#define SDB_ATTR(obj) ((sdb_attribute_t *)(obj))
-#define SDB_CONST_ATTR(obj) ((const sdb_attribute_t *)(obj))
+#define ATTR(obj) ((sdb_attribute_t *)(obj))
+#define CONST_ATTR(obj) ((const sdb_attribute_t *)(obj))
+
+typedef struct {
+	sdb_store_obj_t super;
+
+	sdb_avltree_t *attributes;
+} sdb_service_t;
+#define SVC(obj) ((sdb_service_t *)(obj))
+#define CONST_SVC(obj) ((const sdb_service_t *)(obj))
+
+typedef struct {
+	sdb_store_obj_t super;
+
+	sdb_avltree_t *attributes;
+	struct {
+		char *type;
+		char *id;
+	} store;
+} sdb_metric_t;
+#define METRIC(obj) ((sdb_metric_t *)(obj))
 
 typedef struct {
-	sdb_store_base_t super;
+	sdb_store_obj_t super;
 
-	sdb_llist_t *children;
-	sdb_llist_t *attributes;
-} sdb_store_obj_t;
-#define SDB_STORE_OBJ(obj) ((sdb_store_obj_t *)(obj))
-#define SDB_CONST_STORE_OBJ(obj) ((const sdb_store_obj_t *)(obj))
+	sdb_avltree_t *services;
+	sdb_avltree_t *metrics;
+	sdb_avltree_t *attributes;
+} sdb_host_t;
+#define HOST(obj) ((sdb_host_t *)(obj))
+#define CONST_HOST(obj) ((const sdb_host_t *)(obj))
 
-/* shortcuts for accessing the sdb_store_obj_t attributes
- * of inheriting objects */
+/* shortcuts for accessing service/host attributes */
 #define _last_update super.last_update
 #define _interval super.interval
 
+/*
+ * querying
+ */
+
+struct sdb_store_query {
+	sdb_object_t super;
+	sdb_ast_node_t *ast;
+	sdb_store_matcher_t *matcher;
+	sdb_store_matcher_t *filter;
+};
+#define QUERY(m) ((sdb_store_query_t *)(m))
+
+/*
+ * expressions
+ */
+
+enum {
+	TYPED_EXPR  = -3, /* obj type stored in data.data.integer */
+	ATTR_VALUE  = -2, /* attr name stored in data.data.string */
+	FIELD_VALUE = -1, /* field type stored in data.data.integer */
+	/*  0: const value (stored in data) */
+	/* >0: operator id */
+};
+
+struct sdb_store_expr {
+	sdb_object_t super;
+
+	int type; /* see above */
+	int data_type;
+
+	sdb_store_expr_t *left;
+	sdb_store_expr_t *right;
+
+	sdb_data_t data;
+};
+#define CONST_EXPR(v) { SDB_OBJECT_INIT, 0, (v).type, NULL, NULL, (v) }
+#define EXPR_TO_STRING(e) \
+	(((e)->type == TYPED_EXPR) ? "<typed>" \
+		: ((e)->type == ATTR_VALUE) ? "attribute" \
+		: ((e)->type == FIELD_VALUE) ? SDB_FIELD_TO_NAME((e)->data.data.integer) \
+		: ((e)->type == 0) ? "<constant>" \
+		: ((e)->type > 0) ? SDB_DATA_OP_TO_STRING((e)->type) \
+		: "<unknown>")
+
 /*
  * matchers
  */
 
-/* when adding to this, also update 'matchers' and 'matchers_tostring'
- * in store_lookup.c */
+/* when adding to this, also update 'MATCHER_SYM' below and 'matchers' in
+ * store_lookup.c */
 enum {
 	MATCHER_OR,
 	MATCHER_AND,
 	MATCHER_NOT,
-	MATCHER_NAME,
-	MATCHER_ATTR,
-	MATCHER_HOST,
+	MATCHER_ANY,
+	MATCHER_ALL,
+	MATCHER_IN,
+	MATCHER_NIN,
+
+	/* unary operators */
+	MATCHER_ISNULL,
+
+	/* ary operators */
+	MATCHER_LT,
+	MATCHER_LE,
+	MATCHER_EQ,
+	MATCHER_NE,
+	MATCHER_GE,
+	MATCHER_GT,
+	MATCHER_REGEX,
+	MATCHER_NREGEX,
+
+	/* a generic query */
+	MATCHER_QUERY,
 };
 
-/* match the name of something */
-typedef struct {
-	char    *name;
-	regex_t *name_re;
-} name_matcher_t;
+#define MATCHER_SYM(t) \
+	(((t) == MATCHER_OR) ? "OR" \
+		: ((t) == MATCHER_AND) ? "AND" \
+		: ((t) == MATCHER_NOT) ? "NOT" \
+		: ((t) == MATCHER_ANY) ? "ANY" \
+		: ((t) == MATCHER_ALL) ? "ALL" \
+		: ((t) == MATCHER_IN) ? "IN" \
+		: ((t) == MATCHER_NIN) ? "NOT IN" \
+		: ((t) == MATCHER_ISNULL) ? "IS NULL" \
+		: ((t) == MATCHER_LT) ? "<" \
+		: ((t) == MATCHER_LE) ? "<=" \
+		: ((t) == MATCHER_EQ) ? "=" \
+		: ((t) == MATCHER_NE) ? "!=" \
+		: ((t) == MATCHER_GE) ? ">=" \
+		: ((t) == MATCHER_GT) ? ">" \
+		: ((t) == MATCHER_REGEX) ? "=~" \
+		: ((t) == MATCHER_NREGEX) ? "!~" \
+		: ((t) == MATCHER_QUERY) ? "QUERY" \
+		: "UNKNOWN")
 
 /* matcher base type */
 struct sdb_store_matcher {
@@ -106,7 +207,7 @@ struct sdb_store_matcher {
 };
 #define M(m) ((sdb_store_matcher_t *)(m))
 
-/* logical infix operator matcher */
+/* infix operator matcher */
 typedef struct {
 	sdb_store_matcher_t super;
 
@@ -116,7 +217,7 @@ typedef struct {
 } op_matcher_t;
 #define OP_M(m) ((op_matcher_t *)(m))
 
-/* logical unary operator matcher */
+/* unary operator matcher */
 typedef struct {
 	sdb_store_matcher_t super;
 
@@ -125,33 +226,29 @@ typedef struct {
 } uop_matcher_t;
 #define UOP_M(m) ((uop_matcher_t *)(m))
 
-/* match any type of object by it's name */
+/* iter matcher */
 typedef struct {
 	sdb_store_matcher_t super;
+	sdb_store_expr_t *iter;
+	sdb_store_matcher_t *m;
+} iter_matcher_t;
+#define ITER_M(m) ((iter_matcher_t *)(m))
 
-	int obj_type;
+/* compare operator matcher */
+typedef struct {
+	sdb_store_matcher_t super;
 
-	/* match by the name of the object */
-	name_matcher_t name;
-} obj_matcher_t;
-#define OBJ_M(m) ((obj_matcher_t *)(m))
+	/* left and right hand expressions */
+	sdb_store_expr_t *left;
+	sdb_store_expr_t *right;
+} cmp_matcher_t;
+#define CMP_M(m) ((cmp_matcher_t *)(m))
 
-/* match attributes */
 typedef struct {
-	obj_matcher_t super;
-	/* XXX: this needs to be more flexible;
-	 *      add support for type-specific operators */
-	name_matcher_t value;
-} attr_matcher_t;
-#define ATTR_M(m) ((attr_matcher_t *)(m))
-
-/* match hosts */
-typedef struct {
-	obj_matcher_t super;
-	/* match by attributes assigned to the host */
-	attr_matcher_t *attr;
-} host_matcher_t;
-#define HOST_M(m) ((host_matcher_t *)(m))
+	sdb_store_matcher_t super;
+	sdb_store_expr_t *expr;
+} isnull_matcher_t;
+#define ISNULL_M(m) ((isnull_matcher_t *)(m))
 
 #ifdef __cplusplus
 } /* extern "C" */