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index 750a0b32bbb4e83706f5ac7658e25cf8e48904bf..2f9d96cd068b989f908ad94b88c071bbf19f3924 100644 (file)
--- a/src/core/store-private.h
+++ b/src/core/store-private.h
*/
/*
- * private data structures used by the store module
+ * private data structures used by the memstore module
*/
#ifndef SDB_CORE_STORE_PRIVATE_H
* core types
*/
-struct sdb_store_obj {
+struct sdb_memstore_obj {
sdb_object_t super;
+#define _name super.name
/* object type */
int type;
sdb_time_t interval; /* moving average */
char **backends;
size_t backends_num;
- sdb_store_obj_t *parent;
+ sdb_memstore_obj_t *parent;
};
-#define STORE_OBJ(obj) ((sdb_store_obj_t *)(obj))
-#define STORE_CONST_OBJ(obj) ((const sdb_store_obj_t *)(obj))
+#define STORE_OBJ(obj) ((sdb_memstore_obj_t *)(obj))
+#define STORE_CONST_OBJ(obj) ((const sdb_memstore_obj_t *)(obj))
typedef struct {
- sdb_store_obj_t super;
+ sdb_memstore_obj_t super;
sdb_data_t value;
-} sdb_attribute_t;
-#define ATTR(obj) ((sdb_attribute_t *)(obj))
-#define CONST_ATTR(obj) ((const sdb_attribute_t *)(obj))
+} attr_t;
+#define ATTR(obj) ((attr_t *)(obj))
+#define CONST_ATTR(obj) ((const attr_t *)(obj))
typedef struct {
- sdb_store_obj_t super;
+ sdb_memstore_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))
+} service_t;
+#define SVC(obj) ((service_t *)(obj))
+#define CONST_SVC(obj) ((const service_t *)(obj))
typedef struct {
- sdb_store_obj_t super;
+ sdb_memstore_obj_t super;
sdb_avltree_t *attributes;
struct {
char *type;
char *id;
} store;
-} sdb_metric_t;
-#define METRIC(obj) ((sdb_metric_t *)(obj))
+} metric_t;
+#define METRIC(obj) ((metric_t *)(obj))
typedef struct {
- sdb_store_obj_t super;
+ sdb_memstore_obj_t super;
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))
+} host_t;
+#define HOST(obj) ((host_t *)(obj))
+#define CONST_HOST(obj) ((const host_t *)(obj))
/* shortcuts for accessing service/host attributes */
#define _last_update super.last_update
#define _interval super.interval
+/*
+ * querying
+ */
+
+struct sdb_memstore_query {
+ sdb_object_t super;
+ sdb_ast_node_t *ast;
+ sdb_memstore_matcher_t *matcher;
+ sdb_memstore_matcher_t *filter;
+};
+#define QUERY(m) ((sdb_memstore_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 {
+struct sdb_memstore_expr {
sdb_object_t super;
int type; /* see above */
+ int data_type;
- sdb_store_expr_t *left;
- sdb_store_expr_t *right;
+ sdb_memstore_expr_t *left;
+ sdb_memstore_expr_t *right;
sdb_data_t data;
};
-
-/*
- * conditionals
- */
-
-/* compares an object using the specified conditional and taking the specified
- * filter into account */
-typedef int (*cmp_cb)(sdb_store_obj_t *, sdb_store_cond_t *,
- sdb_store_matcher_t *);
-
-struct sdb_store_cond {
- sdb_object_t super;
- cmp_cb cmp;
-};
-
-typedef struct {
- sdb_store_cond_t super;
- char *name;
- sdb_store_expr_t *expr;
-} attr_cond_t;
-#define ATTR_C(obj) ((attr_cond_t *)(obj))
-
-typedef struct {
- sdb_store_cond_t super;
- int field;
- sdb_store_expr_t *expr;
-} obj_cond_t;
-#define OBJ_C(obj) ((obj_cond_t *)(obj))
+#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 'MATCHER_SYM' below as well as '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_SERVICE,
- MATCHER_METRIC,
- MATCHER_ATTRIBUTE,
+ MATCHER_ANY,
+ MATCHER_ALL,
+ MATCHER_IN,
+
+ /* unary operators */
+ MATCHER_ISNULL,
+ MATCHER_ISTRUE,
+ MATCHER_ISFALSE,
+
+ /* ary operators */
MATCHER_LT,
MATCHER_LE,
MATCHER_EQ,
+ MATCHER_NE,
MATCHER_GE,
MATCHER_GT,
- MATCHER_CMP_LT,
- MATCHER_CMP_LE,
- MATCHER_CMP_EQ,
- MATCHER_CMP_NE,
- MATCHER_CMP_GE,
- MATCHER_CMP_GT,
- MATCHER_IN,
MATCHER_REGEX,
MATCHER_NREGEX,
- MATCHER_ISNULL,
- MATCHER_ISNNULL,
+
+ /* a generic query */
+ MATCHER_QUERY,
};
#define MATCHER_SYM(t) \
(((t) == MATCHER_OR) ? "OR" \
: ((t) == MATCHER_AND) ? "AND" \
: ((t) == MATCHER_NOT) ? "NOT" \
- : ((t) == MATCHER_NAME) ? "NAME" \
- : ((t) == MATCHER_ATTR) ? "ATTR" \
- : ((t) == MATCHER_SERVICE) ? "SERVICE" \
- : ((t) == MATCHER_METRIC) ? "METRIC" \
- : ((t) == MATCHER_ATTRIBUTE) ? "ATTRIBUTE" \
+ : ((t) == MATCHER_ANY) ? "ANY" \
+ : ((t) == MATCHER_ALL) ? "ALL" \
+ : ((t) == MATCHER_IN) ? "IN" \
+ : ((t) == MATCHER_ISNULL) ? "IS NULL" \
+ : ((t) == MATCHER_ISTRUE) ? "IS TRUE" \
+ : ((t) == MATCHER_ISFALSE) ? "IS FALSE" \
: ((t) == MATCHER_LT) ? "<" \
: ((t) == MATCHER_LE) ? "<=" \
: ((t) == MATCHER_EQ) ? "=" \
- : ((t) == MATCHER_CMP_NE) ? "!=" \
+ : ((t) == MATCHER_NE) ? "!=" \
: ((t) == MATCHER_GE) ? ">=" \
: ((t) == MATCHER_GT) ? ">" \
- : ((t) == MATCHER_IN) ? "IN" \
: ((t) == MATCHER_REGEX) ? "=~" \
: ((t) == MATCHER_NREGEX) ? "!~" \
- : ((t) == MATCHER_ISNULL) ? "IS NULL" \
- : ((t) == MATCHER_ISNNULL) ? "IS NOT NULL" \
+ : ((t) == MATCHER_QUERY) ? "QUERY" \
: "UNKNOWN")
-/* match the name of something */
-typedef struct {
- char *name;
- regex_t *name_re;
-} string_matcher_t;
-
/* matcher base type */
-struct sdb_store_matcher {
+struct sdb_memstore_matcher {
sdb_object_t super;
/* type of the matcher */
int type;
};
-#define M(m) ((sdb_store_matcher_t *)(m))
+#define M(m) ((sdb_memstore_matcher_t *)(m))
/* infix operator matcher */
typedef struct {
- sdb_store_matcher_t super;
+ sdb_memstore_matcher_t super;
/* left and right hand operands */
- sdb_store_matcher_t *left;
- sdb_store_matcher_t *right;
+ sdb_memstore_matcher_t *left;
+ sdb_memstore_matcher_t *right;
} op_matcher_t;
#define OP_M(m) ((op_matcher_t *)(m))
/* unary operator matcher */
typedef struct {
- sdb_store_matcher_t super;
+ sdb_memstore_matcher_t super;
/* operand */
- sdb_store_matcher_t *op;
+ sdb_memstore_matcher_t *op;
} uop_matcher_t;
#define UOP_M(m) ((uop_matcher_t *)(m))
-/* child matcher */
+/* iter matcher */
typedef struct {
- sdb_store_matcher_t super;
- sdb_store_matcher_t *m;
-} child_matcher_t;
-#define CHILD_M(m) ((child_matcher_t *)(m))
+ sdb_memstore_matcher_t super;
+ sdb_memstore_expr_t *iter;
+ sdb_memstore_matcher_t *m;
+} iter_matcher_t;
+#define ITER_M(m) ((iter_matcher_t *)(m))
/* compare operator matcher */
typedef struct {
- sdb_store_matcher_t super;
+ sdb_memstore_matcher_t super;
/* left and right hand expressions */
- sdb_store_expr_t *left;
- sdb_store_expr_t *right;
+ sdb_memstore_expr_t *left;
+ sdb_memstore_expr_t *right;
} cmp_matcher_t;
#define CMP_M(m) ((cmp_matcher_t *)(m))
-/* match any type of object by it's name */
-typedef struct {
- sdb_store_matcher_t super;
-
- int obj_type;
- string_matcher_t name;
-} name_matcher_t;
-#define NAME_M(m) ((name_matcher_t *)(m))
-
-/* match attributes */
-typedef struct {
- sdb_store_matcher_t super;
- char *name;
- string_matcher_t value;
-} attr_matcher_t;
-#define ATTR_M(m) ((attr_matcher_t *)(m))
-
-typedef struct {
- sdb_store_matcher_t super;
- sdb_store_expr_t *expr;
-} isnull_matcher_t;
-#define ISNULL_M(m) ((isnull_matcher_t *)(m))
-
-/* match using conditionals */
typedef struct {
- sdb_store_matcher_t super;
- sdb_store_cond_t *cond;
-} cond_matcher_t;
-#define COND_M(m) ((cond_matcher_t *)(m))
+ sdb_memstore_matcher_t super;
+ sdb_memstore_expr_t *expr;
+} unary_matcher_t;
+#define UNARY_M(m) ((unary_matcher_t *)(m))
#ifdef __cplusplus
} /* extern "C" */