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index 513b6a64a7a824c5263eec708945c14a3812cfe6..eab37b4787bb2ba7e752ab6c06eb4b8bc019a7ea 100644 (file)
--- a/src/core/store_lookup.c
+++ b/src/core/store_lookup.c
#include <limits.h>
/*
- * private data types
+ * matcher implementations
*/
-typedef struct {
- sdb_store_matcher_t *m;
- sdb_store_matcher_t *filter;
- sdb_store_lookup_cb cb;
- void *user_data;
-} scan_iter_data_t;
-
/*
- * private helper functions
+ * cmp_expr:
+ * Compare two values using the specified matcher operator. If strcmp_fallback
+ * is enabled, compare the string values in case of a type mismatch.
*/
-
static int
-scan_iter(sdb_store_obj_t *obj, void *user_data)
+cmp_value(int op, sdb_data_t *v1, sdb_data_t *v2, _Bool strcmp_fallback)
{
- scan_iter_data_t *d = user_data;
+ int status;
- if (sdb_store_matcher_matches(d->m, obj, d->filter))
- return d->cb(obj, d->user_data);
- return 0;
-} /* scan_iter */
+ if (sdb_data_isnull(v1) || (sdb_data_isnull(v2)))
+ status = INT_MAX;
+ else if (v1->type == v2->type)
+ status = sdb_data_cmp(v1, v2);
+ else if (! strcmp_fallback)
+ status = INT_MAX;
+ else
+ status = sdb_data_strcmp(v1, v2);
-/*
- * matcher implementations
- */
+ if (status == INT_MAX)
+ return 0;
+ else if (op == MATCHER_LT)
+ return status < 0;
+ else if (op == MATCHER_LE)
+ return status <= 0;
+ else if (op == MATCHER_EQ)
+ return status == 0;
+ else if (op == MATCHER_NE)
+ return status != 0;
+ else if (op == MATCHER_GE)
+ return status >= 0;
+ else if (op == MATCHER_GT)
+ return status > 0;
+ return 0;
+} /* cmp_value */
static int
match_logical(sdb_store_matcher_t *m, sdb_store_obj_t *obj,
return !sdb_store_matcher_matches(UOP_M(m)->op, obj, filter);
} /* match_unary */
+/* iterate arrays: ANY/ALL <array> <cmp> <value> */
+static int
+match_iter_array(sdb_store_matcher_t *m, sdb_store_obj_t *obj,
+ sdb_store_matcher_t *filter)
+{
+ sdb_store_expr_t *e1, *e2;
+ sdb_data_t v1 = SDB_DATA_INIT;
+ sdb_data_t v2 = SDB_DATA_INIT;
+
+ int status;
+
+ /* TODO: fully support arbitrary operators (?) */
+ if ((ITER_M(m)->m->type < MATCHER_LT) || (MATCHER_GT < ITER_M(m)->m->type))
+ return 0;
+
+ e1 = CMP_M(ITER_M(m)->m)->left;
+ e2 = CMP_M(ITER_M(m)->m)->right;
+
+ if (sdb_store_expr_eval(e1, obj, &v1, filter))
+ return 0;
+ if (sdb_store_expr_eval(e2, obj, &v2, filter)) {
+ sdb_data_free_datum(&v1);
+ return 0;
+ }
+
+ if ((! (v1.type & SDB_TYPE_ARRAY)) || (v2.type & SDB_TYPE_ARRAY))
+ status = 0;
+ else if (sdb_data_isnull(&v1) || (sdb_data_isnull(&v2)))
+ status = 0;
+ else {
+ size_t i;
+ int all = (int)(m->type == MATCHER_ALL);
+
+ status = all;
+ for (i = 0; i < v1.data.array.length; ++i) {
+ sdb_data_t v = SDB_DATA_INIT;
+ if (sdb_data_array_get(&v1, i, &v)) {
+ status = 0;
+ break;
+ }
+
+ if (cmp_value(ITER_M(m)->m->type, &v, &v2,
+ (e1->data_type) < 0 || (e2->data_type < 0))) {
+ if (! all) {
+ status = 1;
+ break;
+ }
+ }
+ else if (all) {
+ status = 0;
+ break;
+ }
+ }
+ }
+
+ sdb_data_free_datum(&v1);
+ sdb_data_free_datum(&v2);
+ return status;
+} /* match_iter_array */
+
static int
match_iter(sdb_store_matcher_t *m, sdb_store_obj_t *obj,
sdb_store_matcher_t *filter)
assert((m->type == MATCHER_ANY) || (m->type == MATCHER_ALL));
- /* TODO: support all object types */
- if (obj->type != SDB_HOST)
- return 0;
-
- if (ITER_M(m)->type == SDB_SERVICE)
- iter = sdb_avltree_get_iter(HOST(obj)->services);
- else if (ITER_M(m)->type == SDB_METRIC)
- iter = sdb_avltree_get_iter(HOST(obj)->metrics);
- else if (ITER_M(m)->type == SDB_ATTRIBUTE)
- iter = sdb_avltree_get_iter(HOST(obj)->attributes);
+ if (ITER_M(m)->type == SDB_FIELD_BACKEND)
+ return match_iter_array(m, obj, filter);
+
+ if (obj->type == SDB_HOST) {
+ if (ITER_M(m)->type == SDB_SERVICE)
+ iter = sdb_avltree_get_iter(HOST(obj)->services);
+ else if (ITER_M(m)->type == SDB_METRIC)
+ iter = sdb_avltree_get_iter(HOST(obj)->metrics);
+ else if (ITER_M(m)->type == SDB_ATTRIBUTE)
+ iter = sdb_avltree_get_iter(HOST(obj)->attributes);
+ } else if (obj->type == SDB_SERVICE) {
+ if (ITER_M(m)->type == SDB_ATTRIBUTE)
+ iter = sdb_avltree_get_iter(SVC(obj)->attributes);
+ } else if (obj->type == SDB_METRIC) {
+ if (ITER_M(m)->type == SDB_ATTRIBUTE)
+ iter = sdb_avltree_get_iter(METRIC(obj)->attributes);
+ }
status = all;
while (sdb_avltree_iter_has_next(iter)) {
return status;
} /* match_iter */
-/*
- * cmp_expr:
- * Compare the values of two expressions when evaluating them using the
- * specified stored object and filter. Returns a value less than, equal to, or
- * greater than zero if the value of the first expression compares less than,
- * equal to, or greater than the value of the second expression. Returns
- * INT_MAX if any of the expressions could not be evaluated or if any of them
- * evaluated to NULL.
- */
static int
-cmp_expr(sdb_store_expr_t *e1, sdb_store_expr_t *e2,
- sdb_store_obj_t *obj, sdb_store_matcher_t *filter)
+match_cmp(sdb_store_matcher_t *m, sdb_store_obj_t *obj,
+ sdb_store_matcher_t *filter)
{
+ sdb_store_expr_t *e1 = CMP_M(m)->left;
+ sdb_store_expr_t *e2 = CMP_M(m)->right;
sdb_data_t v1 = SDB_DATA_INIT, v2 = SDB_DATA_INIT;
int status;
+ assert((m->type == MATCHER_LT)
+ || (m->type == MATCHER_LE)
+ || (m->type == MATCHER_EQ)
+ || (m->type == MATCHER_NE)
+ || (m->type == MATCHER_GE)
+ || (m->type == MATCHER_GT));
+
if (sdb_store_expr_eval(e1, obj, &v1, filter))
- return INT_MAX;
+ return 0;
if (sdb_store_expr_eval(e2, obj, &v2, filter)) {
sdb_data_free_datum(&v1);
- return INT_MAX;
+ return 0;
}
- if (sdb_data_isnull(&v1) || (sdb_data_isnull(&v2)))
- status = INT_MAX;
- else if (v1.type == v2.type)
- status = sdb_data_cmp(&v1, &v2);
- else if ((e1->data_type >= 0) && (e2->data_type >= 0))
- status = INT_MAX;
- else
- status = sdb_data_strcmp(&v1, &v2);
+ status = cmp_value(m->type, &v1, &v2,
+ (e1->data_type) < 0 || (e2->data_type < 0));
sdb_data_free_datum(&v1);
sdb_data_free_datum(&v2);
return status;
-} /* cmp_expr */
-
-static int
-match_lt(sdb_store_matcher_t *m, sdb_store_obj_t *obj,
- sdb_store_matcher_t *filter)
-{
- int status;
- assert(m->type == MATCHER_LT);
- status = cmp_expr(CMP_M(m)->left, CMP_M(m)->right, obj, filter);
- return (status != INT_MAX) && (status < 0);
-} /* match_lt */
-
-static int
-match_le(sdb_store_matcher_t *m, sdb_store_obj_t *obj,
- sdb_store_matcher_t *filter)
-{
- int status;
- assert(m->type == MATCHER_LE);
- status = cmp_expr(CMP_M(m)->left, CMP_M(m)->right, obj, filter);
- return (status != INT_MAX) && (status <= 0);
-} /* match_le */
-
-static int
-match_eq(sdb_store_matcher_t *m, sdb_store_obj_t *obj,
- sdb_store_matcher_t *filter)
-{
- int status;
- assert(m->type == MATCHER_EQ);
- status = cmp_expr(CMP_M(m)->left, CMP_M(m)->right, obj, filter);
- return (status != INT_MAX) && (! status);
-} /* match_eq */
-
-static int
-match_ne(sdb_store_matcher_t *m, sdb_store_obj_t *obj,
- sdb_store_matcher_t *filter)
-{
- int status;
- assert(m->type == MATCHER_NE);
- status = cmp_expr(CMP_M(m)->left, CMP_M(m)->right, obj, filter);
- return (status != INT_MAX) && status;
-} /* match_ne */
-
-static int
-match_ge(sdb_store_matcher_t *m, sdb_store_obj_t *obj,
- sdb_store_matcher_t *filter)
-{
- int status;
- assert(m->type == MATCHER_GE);
- status = cmp_expr(CMP_M(m)->left, CMP_M(m)->right, obj, filter);
- return (status != INT_MAX) && (status >= 0);
-} /* match_ge */
-
-static int
-match_gt(sdb_store_matcher_t *m, sdb_store_obj_t *obj,
- sdb_store_matcher_t *filter)
-{
- int status;
- assert(m->type == MATCHER_GT);
- status = cmp_expr(CMP_M(m)->left, CMP_M(m)->right, obj, filter);
- return (status != INT_MAX) && (status > 0);
-} /* match_gt */
+} /* match_cmp */
static int
match_in(sdb_store_matcher_t *m, sdb_store_obj_t *obj,
if ((sdb_store_expr_eval(CMP_M(m)->left, obj, &v, filter))
|| (sdb_data_isnull(&v)))
- status = 0;
+ status = INT_MAX;
else {
char value[sdb_data_strlen(&v) + 1];
if (sdb_data_format(&v, value, sizeof(value), SDB_UNQUOTED) < 0)
if (free_regex)
regfree(®ex);
sdb_data_free_datum(&v);
+ if (status == INT_MAX)
+ return 0;
if (m->type == MATCHER_NREGEX)
return !status;
return status;
match_unary,
match_iter,
match_iter,
- match_lt,
- match_le,
- match_eq,
- match_ne,
- match_ge,
- match_gt,
+ match_cmp,
+ match_cmp,
+ match_cmp,
+ match_cmp,
+ match_cmp,
+ match_cmp,
match_in,
match_regex,
match_regex,
sdb_store_any_matcher(int type, sdb_store_matcher_t *m)
{
if ((type != SDB_SERVICE) && (type != SDB_METRIC)
- && (type != SDB_ATTRIBUTE))
+ && (type != SDB_ATTRIBUTE) && (type != SDB_FIELD_BACKEND))
return NULL;
return M(sdb_object_create("any-matcher", iter_type,
MATCHER_ANY, type, m));
sdb_store_all_matcher(int type, sdb_store_matcher_t *m)
{
if ((type != SDB_SERVICE) && (type != SDB_METRIC)
- && (type != SDB_ATTRIBUTE))
+ && (type != SDB_ATTRIBUTE) && (type != SDB_FIELD_BACKEND))
return NULL;
return M(sdb_object_create("all-matcher", iter_type,
MATCHER_ALL, type, m));
return matchers[m->type](m, obj, filter);
} /* sdb_store_matcher_matches */
-int
-sdb_store_scan(sdb_store_matcher_t *m, sdb_store_matcher_t *filter,
- sdb_store_lookup_cb cb, void *user_data)
-{
- scan_iter_data_t data = { m, filter, cb, user_data };
-
- if (! cb)
- return -1;
- return sdb_store_iterate(scan_iter, &data);
-} /* sdb_store_scan */
-
/* vim: set tw=78 sw=4 ts=4 noexpandtab : */