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index c3029c75078db3c0ee6d35b0fcbe602a799f41f6..9968aba468eab75c8dfc8b4da86c915504c1c3e9 100644 (file)
--- a/src/core/store_lookup.c
+++ b/src/core/store_lookup.c
if (obj->type != SDB_HOST)
return INT_MAX;
- if (sdb_store_expr_eval(ATTR_C(cond)->expr, obj, &value))
+ if (sdb_store_expr_eval(ATTR_C(cond)->expr, obj, &value, filter))
return INT_MAX;
attr = attr_get(HOST(obj), ATTR_C(cond)->name, filter);
if (! attr)
status = INT_MAX;
else if (attr->value.type != value.type)
- status = INT_MAX;
+ status = sdb_data_strcmp(&attr->value, &value);
else
status = sdb_data_cmp(&attr->value, &value);
sdb_data_free_datum(&value);
static int
obj_cmp(sdb_store_obj_t *obj, sdb_store_cond_t *cond,
- sdb_store_matcher_t __attribute__((unused)) *filter)
+ sdb_store_matcher_t *filter)
{
sdb_data_t obj_value = SDB_DATA_INIT;
sdb_data_t value = SDB_DATA_INIT;
int status;
- if (sdb_store_get_field(obj, OBJ_C(cond)->field, &obj_value))
- return INT_MAX;
- if (sdb_store_expr_eval(OBJ_C(cond)->expr, obj, &value))
+ if (sdb_store_expr_eval(OBJ_C(cond)->expr, obj, &value, filter))
return INT_MAX;
- if (obj_value.type != value.type) {
- sdb_data_free_datum(&value);
- return INT_MAX;
- }
- else if (OBJ_C(cond)->field == SDB_FIELD_BACKEND) {
+ if (OBJ_C(cond)->field == SDB_FIELD_BACKEND) {
/* this implementation is not actually a conditional but rather checks
* for equality (or rather, existence) only */
size_t i;
+
+ if (value.type != SDB_TYPE_STRING)
+ return INT_MAX;
+
status = INT_MAX;
for (i = 0; i < obj->backends_num; ++i) {
if (! strcasecmp(obj->backends[i], value.data.string)) {
break;
}
}
+ sdb_data_free_datum(&value);
+ return status;
}
- else {
- status = sdb_data_cmp(&obj_value, &value);
+
+ if (sdb_store_get_field(obj, OBJ_C(cond)->field, &obj_value))
+ return INT_MAX;
+ if (obj_value.type != value.type) {
+ sdb_data_free_datum(&obj_value);
+ sdb_data_free_datum(&value);
+ return INT_MAX;
}
+
+ status = sdb_data_cmp(&obj_value, &value);
+ sdb_data_free_datum(&obj_value);
sdb_data_free_datum(&value);
return status;
} /* obj_cmp */
return 0;
} /* match_attr */
+static int
+match_child(sdb_store_matcher_t *m, sdb_store_obj_t *obj,
+ sdb_store_matcher_t *filter)
+{
+ sdb_avltree_iter_t *iter = NULL;
+ int status = 0;
+
+ assert((m->type == MATCHER_SERVICE)
+ || (m->type == MATCHER_METRIC)
+ || (m->type == MATCHER_ATTRIBUTE));
+
+ /* TODO: support all object types */
+ if (obj->type != SDB_HOST)
+ return 0;
+
+ if (m->type == MATCHER_SERVICE)
+ iter = sdb_avltree_get_iter(HOST(obj)->services);
+ else if (m->type == MATCHER_METRIC)
+ iter = sdb_avltree_get_iter(HOST(obj)->metrics);
+ else if (m->type == SDB_ATTRIBUTE)
+ iter = sdb_avltree_get_iter(HOST(obj)->attributes);
+
+ while (sdb_avltree_iter_has_next(iter)) {
+ sdb_object_t *child = sdb_avltree_iter_get_next(iter);
+ if (filter && (! sdb_store_matcher_matches(filter,
+ STORE_OBJ(child), NULL)))
+ continue;
+
+ if (sdb_store_matcher_matches(CHILD_M(m)->m, obj, filter)) {
+ status = 1;
+ break;
+ }
+ }
+ sdb_avltree_iter_destroy(iter);
+ return status;
+} /* match_child */
+
static int
match_lt(sdb_store_matcher_t *m, sdb_store_obj_t *obj,
sdb_store_matcher_t *filter)
return (status != INT_MAX) && (status > 0);
} /* match_gt */
+/*
+ * 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.
+ */
+static int
+cmp_expr(sdb_store_expr_t *e1, sdb_store_expr_t *e2,
+ sdb_store_obj_t *obj, sdb_store_matcher_t *filter)
+{
+ sdb_data_t v1 = SDB_DATA_INIT, v2 = SDB_DATA_INIT;
+ int status;
+
+ if (sdb_store_expr_eval(e1, obj, &v1, filter))
+ return INT_MAX;
+ if (sdb_store_expr_eval(e2, obj, &v2, filter)) {
+ sdb_data_free_datum(&v1);
+ return INT_MAX;
+ }
+
+ if (v1.type == v2.type)
+ status = sdb_data_cmp(&v1, &v2);
+ else
+ status = sdb_data_strcmp(&v1, &v2);
+
+ sdb_data_free_datum(&v1);
+ sdb_data_free_datum(&v2);
+ return status;
+} /* cmp_expr */
+
+static int
+match_cmp_lt(sdb_store_matcher_t *m, sdb_store_obj_t *obj,
+ sdb_store_matcher_t *filter)
+{
+ int status;
+ assert(m->type == MATCHER_CMP_LT);
+ status = cmp_expr(CMP_M(m)->left, CMP_M(m)->right, obj, filter);
+ return (status != INT_MAX) && (status < 0);
+} /* match_cmp_lt */
+
+static int
+match_cmp_le(sdb_store_matcher_t *m, sdb_store_obj_t *obj,
+ sdb_store_matcher_t *filter)
+{
+ int status;
+ assert(m->type == MATCHER_CMP_LE);
+ status = cmp_expr(CMP_M(m)->left, CMP_M(m)->right, obj, filter);
+ return (status != INT_MAX) && (status <= 0);
+} /* match_cmp_le */
+
+static int
+match_cmp_eq(sdb_store_matcher_t *m, sdb_store_obj_t *obj,
+ sdb_store_matcher_t *filter)
+{
+ int status;
+ assert(m->type == MATCHER_CMP_EQ);
+ status = cmp_expr(CMP_M(m)->left, CMP_M(m)->right, obj, filter);
+ return (status != INT_MAX) && (! status);
+} /* match_cmp_eq */
+
+static int
+match_cmp_ge(sdb_store_matcher_t *m, sdb_store_obj_t *obj,
+ sdb_store_matcher_t *filter)
+{
+ int status;
+ assert(m->type == MATCHER_CMP_GE);
+ status = cmp_expr(CMP_M(m)->left, CMP_M(m)->right, obj, filter);
+ return (status != INT_MAX) && (status >= 0);
+} /* match_cmp_ge */
+
+static int
+match_cmp_gt(sdb_store_matcher_t *m, sdb_store_obj_t *obj,
+ sdb_store_matcher_t *filter)
+{
+ int status;
+ assert(m->type == MATCHER_CMP_GT);
+ status = cmp_expr(CMP_M(m)->left, CMP_M(m)->right, obj, filter);
+ return (status != INT_MAX) && (status > 0);
+} /* match_cmp_gt */
+
static int
match_isnull(sdb_store_matcher_t *m, sdb_store_obj_t *obj,
sdb_store_matcher_t *filter)
match_unary,
match_name,
match_attr,
+ match_child,
+ match_child,
+ match_child,
match_lt,
match_le,
match_eq,
match_ge,
match_gt,
+ match_cmp_lt,
+ match_cmp_le,
+ match_cmp_eq,
+ match_cmp_ge,
+ match_cmp_gt,
match_isnull,
};
return buf;
}
- if (sdb_store_expr_eval(expr, NULL, &value))
+ if (sdb_store_expr_eval(expr, /* obj */ NULL, &value, /* filter */ NULL))
snprintf(value_str, sizeof(value_str), "ERR");
else if (sdb_data_format(&value, value_str, sizeof(value_str),
SDB_SINGLE_QUOTED) < 0)
return buf;
} /* op_tostring */
+static int
+child_matcher_init(sdb_object_t *obj, va_list ap)
+{
+ M(obj)->type = va_arg(ap, int);
+ CHILD_M(obj)->m = va_arg(ap, sdb_store_matcher_t *);
+
+ if (! CHILD_M(obj)->m)
+ return -1;
+
+ sdb_object_ref(SDB_OBJ(CHILD_M(obj)->m));
+ return 0;
+} /* child_matcher_init */
+
+static void
+child_matcher_destroy(sdb_object_t *obj)
+{
+ sdb_object_deref(SDB_OBJ(CHILD_M(obj)->m));
+} /* child_matcher_destroy */
+
+static char *
+child_tostring(sdb_store_matcher_t *m, char *buf, size_t buflen)
+{
+ snprintf(buf, buflen, "%s:", MATCHER_SYM(m->type));
+ buf[buflen - 1] = '\0';
+ sdb_store_matcher_tostring(CHILD_M(m)->m,
+ buf + strlen(buf), buflen - strlen(buf));
+ return buf;
+} /* child_tostring */
+
+static int
+cmp_matcher_init(sdb_object_t *obj, va_list ap)
+{
+ M(obj)->type = va_arg(ap, int);
+
+ CMP_M(obj)->left = va_arg(ap, sdb_store_expr_t *);
+ sdb_object_ref(SDB_OBJ(CMP_M(obj)->left));
+ CMP_M(obj)->right = va_arg(ap, sdb_store_expr_t *);
+ sdb_object_ref(SDB_OBJ(CMP_M(obj)->right));
+
+ if ((! CMP_M(obj)->left) || (! CMP_M(obj)->right))
+ return -1;
+ return 0;
+} /* cmp_matcher_init */
+
+static void
+cmp_matcher_destroy(sdb_object_t *obj)
+{
+ sdb_object_deref(SDB_OBJ(CMP_M(obj)->left));
+ sdb_object_deref(SDB_OBJ(CMP_M(obj)->right));
+} /* cmp_matcher_destroy */
+
+static char *
+cmp_tostring(sdb_store_matcher_t *m, char *buf, size_t buflen)
+{
+ if (! m) {
+ /* this should not happen */
+ snprintf(buf, buflen, "()");
+ return buf;
+ }
+
+ /* TODO */
+ snprintf(buf, buflen, "CMP_MATCHER(%d)", m->type);
+ return buf;
+} /* cmp_tostring */
+
static int
uop_matcher_init(sdb_object_t *obj, va_list ap)
{
/* destroy = */ uop_matcher_destroy,
};
+static sdb_type_t child_type = {
+ /* size = */ sizeof(child_matcher_t),
+ /* init = */ child_matcher_init,
+ /* destroy = */ child_matcher_destroy,
+};
+
+static sdb_type_t cmp_type = {
+ /* size = */ sizeof(cmp_matcher_t),
+ /* init = */ cmp_matcher_init,
+ /* destroy = */ cmp_matcher_destroy,
+};
+
static sdb_type_t isnull_type = {
/* size = */ sizeof(isnull_matcher_t),
/* init = */ isnull_matcher_init,
uop_tostring,
name_tostring,
attr_tostring,
+ child_tostring,
+ child_tostring,
+ child_tostring,
cond_tostring,
cond_tostring,
cond_tostring,
cond_tostring,
cond_tostring,
+ cmp_tostring,
+ cmp_tostring,
+ cmp_tostring,
+ cmp_tostring,
+ cmp_tostring,
isnull_tostring,
};
return m;
} /* sdb_store_attr_matcher */
+sdb_store_matcher_t *
+sdb_store_child_matcher(int type, sdb_store_matcher_t *m)
+{
+ if (type == SDB_SERVICE)
+ type = MATCHER_SERVICE;
+ else if (type == SDB_METRIC)
+ type = MATCHER_METRIC;
+ else if (type == SDB_ATTRIBUTE)
+ type = MATCHER_ATTRIBUTE;
+ else
+ return NULL;
+ return M(sdb_object_create("any-matcher", child_type, type, m));
+} /* sdb_store_child_matcher */
+
sdb_store_matcher_t *
sdb_store_lt_matcher(sdb_store_cond_t *cond)
{
MATCHER_GT, cond));
} /* sdb_store_gt_matcher */
+/*
+ * TODO: Rename sdb_store_cmp_* to sdb_store_* once the old code is unused and
+ * has been removed.
+ */
+
+sdb_store_matcher_t *
+sdb_store_cmp_lt(sdb_store_expr_t *left, sdb_store_expr_t *right)
+{
+ return M(sdb_object_create("lt-matcher", cmp_type,
+ MATCHER_CMP_LT, left, right));
+} /* sdb_store_cmp_lt */
+
+sdb_store_matcher_t *
+sdb_store_cmp_le(sdb_store_expr_t *left, sdb_store_expr_t *right)
+{
+ return M(sdb_object_create("le-matcher", cmp_type,
+ MATCHER_CMP_LE, left, right));
+} /* sdb_store_cmp_le */
+
+sdb_store_matcher_t *
+sdb_store_cmp_eq(sdb_store_expr_t *left, sdb_store_expr_t *right)
+{
+ return M(sdb_object_create("eq-matcher", cmp_type,
+ MATCHER_CMP_EQ, left, right));
+} /* sdb_store_cmp_eq */
+
+sdb_store_matcher_t *
+sdb_store_cmp_ge(sdb_store_expr_t *left, sdb_store_expr_t *right)
+{
+ return M(sdb_object_create("ge-matcher", cmp_type,
+ MATCHER_CMP_GE, left, right));
+} /* sdb_store_cmp_ge */
+
+sdb_store_matcher_t *
+sdb_store_cmp_gt(sdb_store_expr_t *left, sdb_store_expr_t *right)
+{
+ return M(sdb_object_create("gt-matcher", cmp_type,
+ MATCHER_CMP_GT, left, right));
+} /* sdb_store_cmp_gt */
+
sdb_store_matcher_t *
sdb_store_isnull_matcher(const char *attr_name)
{
MATCHER_ISNULL, attr_name));
} /* sdb_store_isnull_matcher */
+int
+sdb_store_parse_object_type_plural(const char *name)
+{
+ if (! strcasecmp(name, "hosts"))
+ return SDB_HOST;
+ else if (! strcasecmp(name, "services"))
+ return SDB_SERVICE;
+ else if (! strcasecmp(name, "metrics"))
+ return SDB_METRIC;
+ return -1;
+} /* sdb_store_parse_object_type_plural */
+
int
sdb_store_parse_field_name(const char *name)
{
- if (! strcasecmp(name, "last_update"))
+ if (! strcasecmp(name, "name"))
+ return SDB_FIELD_NAME;
+ else if (! strcasecmp(name, "last_update"))
return SDB_FIELD_LAST_UPDATE;
else if (! strcasecmp(name, "age"))
return SDB_FIELD_AGE;
if (! expr)
return NULL;
- if (sdb_store_expr_eval(expr, NULL, &value))
- return NULL;
- if (value.type != SDB_TYPE_STRING) {
+ if (sdb_store_expr_eval(expr, /* obj */ NULL, &value, /* filter */ NULL)
+ || (value.type != SDB_TYPE_STRING)) {
sdb_data_free_datum(&value);
+ if (type != SDB_ATTRIBUTE)
+ return NULL;
return parse_attr_cmp(attr, op, expr);
}