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index 8aa8ab085e4dd1fc40eb2586e95ea62cb506ba2c..c3029c75078db3c0ee6d35b0fcbe602a799f41f6 100644 (file)
--- a/src/core/store_lookup.c
+++ b/src/core/store_lookup.c
typedef struct {
sdb_store_matcher_t *m;
+ sdb_store_matcher_t *filter;
sdb_store_lookup_cb cb;
void *user_data;
} scan_iter_data_t;
{
scan_iter_data_t *d = user_data;
- if (sdb_store_matcher_matches(d->m, obj))
+ if (sdb_store_matcher_matches(d->m, obj, d->filter))
return d->cb(obj, d->user_data);
return 0;
} /* scan_iter */
static sdb_attribute_t *
-attr_get(sdb_host_t *host, const char *name)
+attr_get(sdb_host_t *host, const char *name, sdb_store_matcher_t *filter)
{
sdb_avltree_iter_t *iter = NULL;
sdb_attribute_t *attr = NULL;
break;
}
sdb_avltree_iter_destroy(iter);
+
+ if (filter && (! sdb_store_matcher_matches(filter, STORE_OBJ(attr),
+ NULL)))
+ return NULL;
return attr;
} /* attr_get */
*/
static int
-attr_cmp(sdb_host_t *host, sdb_store_cond_t *cond)
+attr_cmp(sdb_store_obj_t *obj, sdb_store_cond_t *cond,
+ sdb_store_matcher_t *filter)
{
sdb_attribute_t *attr;
+ sdb_data_t value = SDB_DATA_INIT;
+ int status;
- attr = attr_get(host, ATTR_C(cond)->name);
- if (! attr)
+ if (obj->type != SDB_HOST)
return INT_MAX;
- if (attr->value.type != ATTR_C(cond)->value.type)
+
+ if (sdb_store_expr_eval(ATTR_C(cond)->expr, obj, &value))
return INT_MAX;
- return sdb_data_cmp(&attr->value, &ATTR_C(cond)->value);
+
+ 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;
+ else
+ status = sdb_data_cmp(&attr->value, &value);
+ sdb_data_free_datum(&value);
+ return status;
} /* attr_cmp */
+static int
+obj_cmp(sdb_store_obj_t *obj, sdb_store_cond_t *cond,
+ sdb_store_matcher_t __attribute__((unused)) *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))
+ 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) {
+ /* this implementation is not actually a conditional but rather checks
+ * for equality (or rather, existence) only */
+ size_t i;
+ status = INT_MAX;
+ for (i = 0; i < obj->backends_num; ++i) {
+ if (! strcasecmp(obj->backends[i], value.data.string)) {
+ status = 0;
+ break;
+ }
+ }
+ }
+ else {
+ status = sdb_data_cmp(&obj_value, &value);
+ }
+ sdb_data_free_datum(&value);
+ return status;
+} /* obj_cmp */
+
/*
* matcher implementations
*/
} /* match_string */
static int
-match_logical(sdb_store_matcher_t *m, sdb_host_t *host)
+match_logical(sdb_store_matcher_t *m, sdb_store_obj_t *obj,
+ sdb_store_matcher_t *filter)
{
int status;
assert((m->type == MATCHER_AND) || (m->type == MATCHER_OR));
assert(OP_M(m)->left && OP_M(m)->right);
- status = sdb_store_matcher_matches(OP_M(m)->left, STORE_OBJ(host));
+ status = sdb_store_matcher_matches(OP_M(m)->left, obj, filter);
+
/* lazy evaluation */
if ((! status) && (m->type == MATCHER_AND))
return status;
else if (status && (m->type == MATCHER_OR))
return status;
- return sdb_store_matcher_matches(OP_M(m)->right, STORE_OBJ(host));
+ return sdb_store_matcher_matches(OP_M(m)->right, obj, filter);
} /* match_logical */
static int
-match_unary(sdb_store_matcher_t *m, sdb_host_t *host)
+match_unary(sdb_store_matcher_t *m, sdb_store_obj_t *obj,
+ sdb_store_matcher_t *filter)
{
assert(m->type == MATCHER_NOT);
assert(UOP_M(m)->op);
- return !sdb_store_matcher_matches(UOP_M(m)->op, STORE_OBJ(host));
+ return !sdb_store_matcher_matches(UOP_M(m)->op, obj, filter);
} /* match_unary */
static int
-match_name(sdb_store_matcher_t *m, sdb_host_t *host)
+match_name(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_NAME);
+ if (obj->type == NAME_M(m)->obj_type)
+ return match_string(&NAME_M(m)->name, SDB_OBJ(obj)->name);
+ else if (obj->type != SDB_HOST)
+ return 0;
+
switch (NAME_M(m)->obj_type) {
- case SDB_HOST:
- return match_string(&NAME_M(m)->name, SDB_OBJ(host)->name);
- break;
case SDB_SERVICE:
- iter = sdb_avltree_get_iter(host->services);
+ iter = sdb_avltree_get_iter(HOST(obj)->services);
+ break;
+ case SDB_METRIC:
+ iter = sdb_avltree_get_iter(HOST(obj)->metrics);
break;
case SDB_ATTRIBUTE:
- iter = sdb_avltree_get_iter(host->attributes);
+ iter = sdb_avltree_get_iter(HOST(obj)->attributes);
break;
}
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 (match_string(&NAME_M(m)->name, child->name)) {
status = 1;
break;
} /* match_name */
static int
-match_attr(sdb_store_matcher_t *m, sdb_host_t *host)
+match_attr(sdb_store_matcher_t *m, sdb_store_obj_t *obj,
+ sdb_store_matcher_t *filter)
{
sdb_attribute_t *attr;
assert(m->type == MATCHER_ATTR);
assert(ATTR_M(m)->name);
- attr = attr_get(host, ATTR_M(m)->name);
+ if (obj->type != SDB_HOST)
+ return 0;
+
+ attr = attr_get(HOST(obj), ATTR_M(m)->name, filter);
if (attr) {
char buf[sdb_data_strlen(&attr->value) + 1];
if (sdb_data_format(&attr->value, buf, sizeof(buf), SDB_UNQUOTED) <= 0)
} /* match_attr */
static int
-match_lt(sdb_store_matcher_t *m, sdb_host_t *host)
+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 = COND_M(m)->cond->cmp(host, COND_M(m)->cond);
+ status = COND_M(m)->cond->cmp(obj, COND_M(m)->cond, filter);
return (status != INT_MAX) && (status < 0);
} /* match_lt */
static int
-match_le(sdb_store_matcher_t *m, sdb_host_t *host)
+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 = COND_M(m)->cond->cmp(host, COND_M(m)->cond);
+ status = COND_M(m)->cond->cmp(obj, COND_M(m)->cond, filter);
return (status != INT_MAX) && (status <= 0);
} /* match_le */
static int
-match_eq(sdb_store_matcher_t *m, sdb_host_t *host)
+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 = COND_M(m)->cond->cmp(host, COND_M(m)->cond);
+ status = COND_M(m)->cond->cmp(obj, COND_M(m)->cond, filter);
return (status != INT_MAX) && (! status);
} /* match_eq */
static int
-match_ge(sdb_store_matcher_t *m, sdb_host_t *host)
+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 = COND_M(m)->cond->cmp(host, COND_M(m)->cond);
+ status = COND_M(m)->cond->cmp(obj, COND_M(m)->cond, filter);
return (status != INT_MAX) && (status >= 0);
} /* match_ge */
static int
-match_gt(sdb_store_matcher_t *m, sdb_host_t *host)
+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 = COND_M(m)->cond->cmp(host, COND_M(m)->cond);
+ status = COND_M(m)->cond->cmp(obj, COND_M(m)->cond, filter);
return (status != INT_MAX) && (status > 0);
} /* match_gt */
static int
-match_isnull(sdb_store_matcher_t *m, sdb_host_t *host)
+match_isnull(sdb_store_matcher_t *m, sdb_store_obj_t *obj,
+ sdb_store_matcher_t *filter)
{
assert(m->type == MATCHER_ISNULL);
- return attr_get(host, ISNULL_M(m)->attr_name) == NULL;
+ if (obj->type != SDB_HOST)
+ return 0;
+ return attr_get(HOST(obj), ISNULL_M(m)->attr_name, filter) == NULL;
} /* match_isnull */
-typedef int (*matcher_cb)(sdb_store_matcher_t *, sdb_host_t *);
+typedef int (*matcher_cb)(sdb_store_matcher_t *, sdb_store_obj_t *,
+ sdb_store_matcher_t *);
/* this array needs to be indexable by the matcher types;
* -> update the enum in store-private.h when updating this */
attr_cond_init(sdb_object_t *obj, va_list ap)
{
const char *name = va_arg(ap, const char *);
- const sdb_data_t *value = va_arg(ap, const sdb_data_t *);
+ sdb_store_expr_t *expr = va_arg(ap, sdb_store_expr_t *);
if (! name)
return -1;
ATTR_C(obj)->name = strdup(name);
if (! ATTR_C(obj)->name)
return -1;
- if (sdb_data_copy(&ATTR_C(obj)->value, value))
- return -1;
+ ATTR_C(obj)->expr = expr;
+ sdb_object_ref(SDB_OBJ(expr));
return 0;
} /* attr_cond_init */
{
if (ATTR_C(obj)->name)
free(ATTR_C(obj)->name);
- sdb_data_free_datum(&ATTR_C(obj)->value);
+ sdb_object_deref(SDB_OBJ(ATTR_C(obj)->expr));
} /* attr_cond_destroy */
static sdb_type_t attr_cond_type = {
/* destroy = */ attr_cond_destroy,
};
+static int
+obj_cond_init(sdb_object_t *obj, va_list ap)
+{
+ int field = va_arg(ap, int);
+ sdb_store_expr_t *expr = va_arg(ap, sdb_store_expr_t *);
+
+ SDB_STORE_COND(obj)->cmp = obj_cmp;
+
+ OBJ_C(obj)->field = field;
+ OBJ_C(obj)->expr = expr;
+ sdb_object_ref(SDB_OBJ(expr));
+ return 0;
+} /* obj_cond_init */
+
+static void
+obj_cond_destroy(sdb_object_t *obj)
+{
+ sdb_object_deref(SDB_OBJ(OBJ_C(obj)->expr));
+} /* obj_cond_destroy */
+
+static sdb_type_t obj_cond_type = {
+ /* size = */ sizeof(obj_cond_t),
+ /* init = */ obj_cond_init,
+ /* destroy = */ obj_cond_destroy,
+};
+
/*
* private matcher types
*/
static char *
cond_tostring(sdb_store_matcher_t *m, char *buf, size_t buflen)
{
+ const char *type, *id;
+ sdb_data_t value = SDB_DATA_INIT;
+ char value_str[buflen];
+ sdb_store_expr_t *expr;
+
if (COND_M(m)->cond->cmp == attr_cmp) {
- char value[buflen];
- if (sdb_data_format(&ATTR_C(COND_M(m)->cond)->value,
- value, sizeof(value), SDB_SINGLE_QUOTED) < 0)
- snprintf(value, sizeof(value), "ERR");
- snprintf(buf, buflen, "ATTR[%s]{ %s %s }",
- ATTR_C(COND_M(m)->cond)->name, MATCHER_SYM(m->type), value);
+ type = "ATTR";
+ id = ATTR_C(COND_M(m)->cond)->name;
+ expr = ATTR_C(COND_M(m)->cond)->expr;
+ }
+ else if (COND_M(m)->cond->cmp == obj_cmp) {
+ type = "OBJ";
+ id = SDB_FIELD_TO_NAME(OBJ_C(COND_M(m)->cond)->field);
+ expr = OBJ_C(COND_M(m)->cond)->expr;
+ }
+ else {
+ snprintf(buf, buflen, "<unknown>");
+ return buf;
}
+
+ if (sdb_store_expr_eval(expr, NULL, &value))
+ snprintf(value_str, sizeof(value_str), "ERR");
+ else if (sdb_data_format(&value, value_str, sizeof(value_str),
+ SDB_SINGLE_QUOTED) < 0)
+ snprintf(value_str, sizeof(value_str), "ERR");
+ snprintf(buf, buflen, "%s[%s]{ %s %s }", type, id,
+ MATCHER_SYM(m->type), value_str);
+ sdb_data_free_datum(&value);
return buf;
} /* cond_tostring */
*/
sdb_store_cond_t *
-sdb_store_attr_cond(const char *name, const sdb_data_t *value)
+sdb_store_attr_cond(const char *name, sdb_store_expr_t *expr)
{
return SDB_STORE_COND(sdb_object_create("attr-cond", attr_cond_type,
- name, value));
+ name, expr));
} /* sdb_store_attr_cond */
+sdb_store_cond_t *
+sdb_store_obj_cond(int field, sdb_store_expr_t *expr)
+{
+ return SDB_STORE_COND(sdb_object_create("obj-cond", obj_cond_type,
+ field, expr));
+} /* sdb_store_obj_cond */
+
sdb_store_matcher_t *
sdb_store_name_matcher(int type, const char *name, _Bool re)
{
sdb_store_matcher_t *m;
if (re)
- m = M(sdb_object_create("name-matcher", name_type,
- NULL, name));
+ m = M(sdb_object_create("name-matcher", name_type, NULL, name));
else
- m = M(sdb_object_create("name-matcher", name_type,
- name, NULL));
+ m = M(sdb_object_create("name-matcher", name_type, name, NULL));
if (! m)
return NULL;
sdb_store_matcher_t *
sdb_store_attr_matcher(const char *name, const char *value, _Bool re)
{
+ sdb_store_matcher_t *m;
+
if (! name)
return NULL;
if (re)
- return M(sdb_object_create("attr-matcher", attr_type,
+ m = M(sdb_object_create("attr-matcher", attr_type,
name, NULL, value));
- return M(sdb_object_create("attr-matcher", attr_type,
- name, value, NULL));
+ else
+ m = M(sdb_object_create("attr-matcher", attr_type,
+ name, value, NULL));
+ return m;
} /* sdb_store_attr_matcher */
sdb_store_matcher_t *
MATCHER_ISNULL, attr_name));
} /* sdb_store_isnull_matcher */
+int
+sdb_store_parse_field_name(const char *name)
+{
+ if (! strcasecmp(name, "last_update"))
+ return SDB_FIELD_LAST_UPDATE;
+ else if (! strcasecmp(name, "age"))
+ return SDB_FIELD_AGE;
+ else if (! strcasecmp(name, "interval"))
+ return SDB_FIELD_INTERVAL;
+ else if (! strcasecmp(name, "backend"))
+ return SDB_FIELD_BACKEND;
+ return -1;
+} /* sdb_store_parse_field_name */
+
static sdb_store_matcher_t *
-parse_attr_cmp(const char *attr, const char *op, const sdb_data_t *value)
+maybe_inv_matcher(sdb_store_matcher_t *m, _Bool inv)
+{
+ sdb_store_matcher_t *tmp;
+
+ if ((! m) || (! inv))
+ return m;
+
+ tmp = sdb_store_inv_matcher(m);
+ /* pass ownership to the inverse matcher */
+ sdb_object_deref(SDB_OBJ(m));
+ return tmp;
+} /* maybe_inv_matcher */
+
+static int
+parse_cond_op(const char *op,
+ sdb_store_matcher_t *(**matcher)(sdb_store_cond_t *), _Bool *inv)
+{
+ *inv = 0;
+ if (! strcasecmp(op, "<"))
+ *matcher = sdb_store_lt_matcher;
+ else if (! strcasecmp(op, "<="))
+ *matcher = sdb_store_le_matcher;
+ else if (! strcasecmp(op, "="))
+ *matcher = sdb_store_eq_matcher;
+ else if (! strcasecmp(op, ">="))
+ *matcher = sdb_store_ge_matcher;
+ else if (! strcasecmp(op, ">"))
+ *matcher = sdb_store_gt_matcher;
+ else if (! strcasecmp(op, "!=")) {
+ *matcher = sdb_store_eq_matcher;
+ *inv = 1;
+ }
+ else
+ return -1;
+ return 0;
+} /* parse_cond_op */
+
+static sdb_store_matcher_t *
+parse_attr_cmp(const char *attr, const char *op, sdb_store_expr_t *expr)
{
sdb_store_matcher_t *(*matcher)(sdb_store_cond_t *) = NULL;
sdb_store_matcher_t *m;
return NULL;
if (! strcasecmp(op, "IS")) {
- if (! value)
+ if (! expr)
return sdb_store_isnull_matcher(attr);
else
return NULL;
}
- else if (! value)
+ else if (! expr)
return NULL;
- else if (! strcasecmp(op, "<"))
- matcher = sdb_store_lt_matcher;
- else if (! strcasecmp(op, "<="))
- matcher = sdb_store_le_matcher;
- else if (! strcasecmp(op, "="))
- matcher = sdb_store_eq_matcher;
- else if (! strcasecmp(op, ">="))
- matcher = sdb_store_ge_matcher;
- else if (! strcasecmp(op, ">"))
- matcher = sdb_store_gt_matcher;
- else if (! strcasecmp(op, "!=")) {
- matcher = sdb_store_eq_matcher;
- inv = 1;
- }
- else
+ else if (parse_cond_op(op, &matcher, &inv))
return NULL;
- cond = sdb_store_attr_cond(attr, value);
+ cond = sdb_store_attr_cond(attr, expr);
if (! cond)
return NULL;
m = matcher(cond);
/* pass ownership to 'm' or destroy in case of an error */
sdb_object_deref(SDB_OBJ(cond));
- if (! m)
- return NULL;
-
- if (inv) {
- sdb_store_matcher_t *tmp;
- tmp = sdb_store_inv_matcher(m);
- /* pass ownership to the inverse matcher */
- sdb_object_deref(SDB_OBJ(m));
- m = tmp;
- }
- return m;
+ return maybe_inv_matcher(m, inv);
} /* parse_attr_cmp */
sdb_store_matcher_t *
sdb_store_matcher_parse_cmp(const char *obj_type, const char *attr,
- const char *op, const sdb_data_t *value)
+ const char *op, sdb_store_expr_t *expr)
{
int type = -1;
_Bool inv = 0;
_Bool re = 0;
+ sdb_data_t value = SDB_DATA_INIT;
sdb_store_matcher_t *m = NULL;
if (! strcasecmp(obj_type, "host"))
type = SDB_HOST;
else if (! strcasecmp(obj_type, "service"))
type = SDB_SERVICE;
+ else if (! strcasecmp(obj_type, "metric"))
+ type = SDB_METRIC;
else if (! strcasecmp(obj_type, "attribute"))
type = SDB_ATTRIBUTE;
else
re = 1;
}
else if (type == SDB_ATTRIBUTE)
- return parse_attr_cmp(attr, op, value);
+ return parse_attr_cmp(attr, op, expr);
else
return NULL;
- if (! value)
+ if (! expr)
return NULL;
- if (value->type != SDB_TYPE_STRING) {
- if (type == SDB_ATTRIBUTE)
- return parse_attr_cmp(attr, op, value);
+ if (sdb_store_expr_eval(expr, NULL, &value))
return NULL;
+ if (value.type != SDB_TYPE_STRING) {
+ sdb_data_free_datum(&value);
+ return parse_attr_cmp(attr, op, expr);
}
if (! attr)
- m = sdb_store_name_matcher(type, value->data.string, re);
+ m = sdb_store_name_matcher(type, value.data.string, re);
else if (type == SDB_ATTRIBUTE)
- m = sdb_store_attr_matcher(attr, value->data.string, re);
+ m = sdb_store_attr_matcher(attr, value.data.string, re);
- if (! m)
+ sdb_data_free_datum(&value);
+ return maybe_inv_matcher(m, inv);
+} /* sdb_store_matcher_parse_cmp */
+
+sdb_store_matcher_t *
+sdb_store_matcher_parse_field_cmp(const char *name, const char *op,
+ sdb_store_expr_t *expr)
+{
+ sdb_store_matcher_t *(*matcher)(sdb_store_cond_t *) = NULL;
+ sdb_store_matcher_t *m;
+ sdb_store_cond_t *cond;
+ _Bool inv = 0;
+
+ int field;
+
+ if (! expr)
return NULL;
- if (inv) {
- sdb_store_matcher_t *tmp;
- tmp = sdb_store_inv_matcher(m);
- /* pass ownership to the inverse matcher */
- sdb_object_deref(SDB_OBJ(m));
- m = tmp;
- }
- return m;
-} /* sdb_store_matcher_parse_cmp */
+ field = sdb_store_parse_field_name(name);
+ if (field < 0)
+ return NULL;
+
+ if (parse_cond_op(op, &matcher, &inv))
+ return NULL;
+ cond = sdb_store_obj_cond(field, expr);
+ if (! cond)
+ return NULL;
+
+ assert(matcher);
+ m = matcher(cond);
+ /* pass ownership to 'm' or destroy in case of an error */
+ sdb_object_deref(SDB_OBJ(cond));
+ return maybe_inv_matcher(m, inv);
+} /* sdb_store_matcher_parse_field_cmp */
sdb_store_matcher_t *
sdb_store_dis_matcher(sdb_store_matcher_t *left, sdb_store_matcher_t *right)
} /* sdb_store_inv_matcher */
int
-sdb_store_matcher_matches(sdb_store_matcher_t *m, sdb_store_obj_t *obj)
+sdb_store_matcher_matches(sdb_store_matcher_t *m, sdb_store_obj_t *obj,
+ sdb_store_matcher_t *filter)
{
- if (obj->type != SDB_HOST)
+ if (filter && (! sdb_store_matcher_matches(filter, obj, NULL)))
return 0;
/* "NULL" always matches */
if ((m->type < 0) || ((size_t)m->type >= SDB_STATIC_ARRAY_LEN(matchers)))
return 0;
- return matchers[m->type](m, HOST(obj));
+ return matchers[m->type](m, obj, filter);
} /* sdb_store_matcher_matches */
char *
} /* sdb_store_matcher_tostring */
int
-sdb_store_scan(sdb_store_matcher_t *m, sdb_store_lookup_cb cb,
- void *user_data)
+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, cb, user_data };
+ scan_iter_data_t data = { m, filter, cb, user_data };
if (! cb)
return -1;