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index 1fe45dfe11f58510cd5ec6a884dc48135130cc5b..6613c21f503b375456661af679a9218485d5ddff 100644 (file)
--- a/src/core/store_lookup.c
+++ b/src/core/store_lookup.c
#include <stdlib.h>
#include <string.h>
+#include <limits.h>
+
/*
* private data types
*/
typedef struct {
sdb_store_matcher_t *m;
+ sdb_store_matcher_t *filter;
sdb_store_lookup_cb cb;
void *user_data;
-} lookup_iter_data_t;
+} scan_iter_data_t;
/*
* private helper functions
*/
static int
-lookup_iter(sdb_store_base_t *obj, void *user_data)
+scan_iter(sdb_store_obj_t *obj, void *user_data)
{
- lookup_iter_data_t *d = user_data;
+ 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;
-} /* lookup_iter */
+} /* scan_iter */
/*
* matcher implementations
*/
static int
-match_logical(sdb_store_matcher_t *m, sdb_store_base_t *obj);
-static int
-match_unary(sdb_store_matcher_t *m, sdb_store_base_t *obj);
-static int
-match_obj(sdb_store_matcher_t *m, sdb_store_base_t *obj);
-
-/* specific matchers */
-
-static int
-match_obj_name(name_matcher_t *m, const char *name)
+match_string(string_matcher_t *m, const char *name)
{
- assert(m);
-
if ((! m->name) && (! m->name_re))
return 1;
/* matches */ 0, NULL, /* flags = */ 0))
return 0;
return 1;
-} /* match_obj_name */
-
-static char *
-obj_name_tostring(name_matcher_t *m, char *buf, size_t buflen)
-{
- snprintf(buf, buflen, "{ %s%s%s, %p }",
- m->name ? "'" : "", m->name ? m->name : "NULL", m->name ? "'" : "",
- m->name_re);
- return buf;
-} /* obj_name_tostring */
+} /* match_string */
-static char *
-logical_tostring(sdb_store_matcher_t *m, char *buf, size_t buflen)
-{
- char left[buflen + 1], right[buflen + 1];
-
- if (! m) {
- /* this should not happen */
- snprintf(buf, buflen, "()");
- return buf;
- }
-
- assert((m->type == MATCHER_OR) || (m->type == MATCHER_AND));
- snprintf(buf, buflen, "(%s, %s, %s)",
- m->type == MATCHER_OR ? "OR" : "AND",
- sdb_store_matcher_tostring(OP_M(m)->left, left, sizeof(left)),
- sdb_store_matcher_tostring(OP_M(m)->right, right, sizeof(right)));
- return buf;
-} /* logical_tostring */
-
-static char *
-unary_tostring(sdb_store_matcher_t *m, char *buf, size_t buflen)
+static int
+match_logical(sdb_store_matcher_t *m, sdb_store_obj_t *obj,
+ sdb_store_matcher_t *filter)
{
- char op[buflen + 1];
-
- if (! m) {
- /* this should not happen */
- snprintf(buf, buflen, "()");
- return buf;
- }
-
- assert(m->type == MATCHER_NOT);
- snprintf(buf, buflen, "(NOT, %s)",
- sdb_store_matcher_tostring(UOP_M(m)->op, op, sizeof(op)));
- return buf;
-} /* unary_tostring */
+ int status;
-static char *
-name_tostring(sdb_store_matcher_t *m, char *buf, size_t buflen)
-{
- char name[buflen + 1];
- assert(m->type == MATCHER_NAME);
- snprintf(buf, buflen, "OBJ[%s]{ NAME%s }",
- SDB_STORE_TYPE_TO_NAME(OBJ_M(m)->obj_type),
- obj_name_tostring(&OBJ_M(m)->name, name, sizeof(name)));
- return buf;
-} /* name_tostring */
+ assert((m->type == MATCHER_AND) || (m->type == MATCHER_OR));
+ assert(OP_M(m)->left && OP_M(m)->right);
-static char *
-attr_tostring(sdb_store_matcher_t *m, char *buf, size_t buflen)
-{
- char name[buflen + 1], value[buflen + 1];
+ status = sdb_store_matcher_matches(OP_M(m)->left, obj, filter);
- if (! m) {
- snprintf(buf, buflen, "ATTR{}");
- return buf;
- }
+ /* lazy evaluation */
+ if ((! status) && (m->type == MATCHER_AND))
+ return status;
+ else if (status && (m->type == MATCHER_OR))
+ return status;
- assert(m->type == MATCHER_ATTR);
- snprintf(buf, buflen, "ATTR{ NAME%s, VALUE%s }",
- obj_name_tostring(&OBJ_M(m)->name, name, sizeof(name)),
- obj_name_tostring(&ATTR_M(m)->value, value, sizeof(value)));
- return buf;
-} /* attr_tostring */
+ return sdb_store_matcher_matches(OP_M(m)->right, obj, filter);
+} /* match_logical */
-static char *
-host_tostring(sdb_store_matcher_t *m, char *buf, size_t buflen)
+static int
+match_unary(sdb_store_matcher_t *m, sdb_store_obj_t *obj,
+ sdb_store_matcher_t *filter)
{
- char name[buflen + 1], attr[buflen + 1];
-
- if (! m) {
- snprintf(buf, buflen, "HOST{}");
- return buf;
- }
+ assert(m->type == MATCHER_NOT);
+ assert(UOP_M(m)->op);
- assert(m->type == MATCHER_HOST);
- snprintf(buf, buflen, "HOST{ NAME%s, %s }",
- obj_name_tostring(&OBJ_M(m)->name, name, sizeof(name)),
- attr_tostring(SDB_STORE_MATCHER(HOST_M(m)->attr),
- attr, sizeof(attr)));
- return buf;
-} /* host_tostring */
+ return !sdb_store_matcher_matches(UOP_M(m)->op, obj, filter);
+} /* match_unary */
static int
-match_name(sdb_store_matcher_t *m, sdb_store_base_t *obj)
+match_name(sdb_store_matcher_t *m, sdb_store_obj_t *obj,
+ sdb_store_matcher_t *filter)
{
- sdb_llist_iter_t *iter = NULL;
+ sdb_avltree_iter_t *iter = NULL;
int status = 0;
- assert(m && obj);
+ assert(m->type == MATCHER_NAME);
- if (obj->type != SDB_HOST)
+ 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 (OBJ_M(m)->obj_type) {
- case SDB_HOST:
- return match_obj_name(&OBJ_M(m)->name, obj->super.name);
- break;
+ switch (NAME_M(m)->obj_type) {
case SDB_SERVICE:
- iter = sdb_llist_get_iter(SDB_STORE_OBJ(obj)->children);
+ 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_llist_get_iter(SDB_STORE_OBJ(obj)->attributes);
+ iter = sdb_avltree_get_iter(HOST(obj)->attributes);
break;
}
- while (sdb_llist_iter_has_next(iter)) {
- sdb_store_base_t *child = STORE_BASE(sdb_llist_iter_get_next(iter));
- if (match_obj_name(&OBJ_M(m)->name, child->super.name)) {
+ 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;
}
}
- sdb_llist_iter_destroy(iter);
+ sdb_avltree_iter_destroy(iter);
return status;
} /* match_name */
-/* match attribute specific values;
- * always call this function through match_obj() */
static int
-match_attr(attr_matcher_t *m, sdb_store_base_t *obj)
+match_child(sdb_store_matcher_t *m, sdb_store_obj_t *obj,
+ sdb_store_matcher_t *filter)
{
- assert(m && obj);
+ sdb_avltree_iter_t *iter = NULL;
+ int status = 0;
+
+ assert((m->type == MATCHER_SERVICE)
+ || (m->type == MATCHER_METRIC)
+ || (m->type == MATCHER_ATTRIBUTE));
- if (obj->type != SDB_ATTRIBUTE)
+ /* TODO: support all object types */
+ if (obj->type != SDB_HOST)
return 0;
- {
- sdb_attribute_t *attr = SDB_ATTR(obj);
- char buf[sdb_data_strlen(&attr->value) + 1];
+ 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 == MATCHER_ATTRIBUTE)
+ iter = sdb_avltree_get_iter(HOST(obj)->attributes);
- if (sdb_data_format(&attr->value, buf, sizeof(buf), SDB_UNQUOTED) <= 0)
- return 0;
- return match_obj_name(&m->value, buf);
+ 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;
+ }
}
-} /* match_attr */
+ sdb_avltree_iter_destroy(iter);
+ return status;
+} /* match_child */
-/* match host specific values;
- * always call this function through match_obj() */
+/*
+ * 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
-match_host(host_matcher_t *m, sdb_store_base_t *obj)
+cmp_expr(sdb_store_expr_t *e1, sdb_store_expr_t *e2,
+ sdb_store_obj_t *obj, sdb_store_matcher_t *filter)
{
- sdb_llist_iter_t *iter;
-
- assert(m && obj);
-
- if (obj->type != SDB_HOST)
- return 0;
+ sdb_data_t v1 = SDB_DATA_INIT, v2 = SDB_DATA_INIT;
+ int status;
- if (! m->attr)
- return 1;
+ 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;
+ }
- iter = sdb_llist_get_iter(SDB_STORE_OBJ(obj)->attributes);
- while (sdb_llist_iter_has_next(iter)) {
- sdb_store_base_t *attr = STORE_BASE(sdb_llist_iter_get_next(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
+ status = sdb_data_strcmp(&v1, &v2);
- /* if any attribute matches, we found a matching host */
- if (match_obj(M(m->attr), attr)) {
- sdb_llist_iter_destroy(iter);
- return 1;
- }
- }
- sdb_llist_iter_destroy(iter);
- return 0;
-} /* match_host */
+ sdb_data_free_datum(&v1);
+ sdb_data_free_datum(&v2);
+ return status;
+} /* cmp_expr */
-/* generic matchers */
+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 */
-typedef int (*matcher_cb)(sdb_store_matcher_t *, sdb_store_base_t *);
+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 */
-/* this array needs to be indexable by the matcher types;
- * -> update the enum in store-private.h when updating this */
-static matcher_cb matchers[] = {
- match_logical,
- match_logical,
- match_unary,
- match_name,
- match_obj,
- match_obj,
-};
+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 */
-typedef char *(*matcher_tostring_cb)(sdb_store_matcher_t *, char *, size_t);
+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 matcher_tostring_cb matchers_tostring[] = {
- logical_tostring,
- logical_tostring,
- unary_tostring,
- name_tostring,
- attr_tostring,
- host_tostring,
-};
+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_logical(sdb_store_matcher_t *m, sdb_store_base_t *obj)
+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 */
- assert(m && obj);
- assert(OP_M(m)->left && OP_M(m)->right);
+static int
+match_in(sdb_store_matcher_t *m, sdb_store_obj_t *obj,
+ sdb_store_matcher_t *filter)
+{
+ sdb_data_t value = SDB_DATA_INIT, array = SDB_DATA_INIT;
+ int status = 1;
- status = sdb_store_matcher_matches(OP_M(m)->left, obj);
- /* lazy evaluation */
- if ((! status) && (m->type == MATCHER_AND))
- return status;
- else if (status && (m->type == MATCHER_OR))
- return status;
+ assert(m->type == MATCHER_IN);
- return sdb_store_matcher_matches(OP_M(m)->right, obj);
-} /* match_logical */
+ if ((sdb_store_expr_eval(CMP_M(m)->left, obj, &value, filter))
+ || (sdb_store_expr_eval(CMP_M(m)->right, obj, &array, filter)))
+ status = 0;
+
+ if (status)
+ status = sdb_data_inarray(&value, &array);
+
+ sdb_data_free_datum(&value);
+ sdb_data_free_datum(&array);
+ return status;
+} /* match_in */
static int
-match_unary(sdb_store_matcher_t *m, sdb_store_base_t *obj)
+match_regex(sdb_store_matcher_t *m, sdb_store_obj_t *obj,
+ sdb_store_matcher_t *filter)
{
- assert(m && obj);
- assert(UOP_M(m)->op);
+ sdb_data_t v = SDB_DATA_INIT;
+ int status = 0;
- return !sdb_store_matcher_matches(UOP_M(m)->op, obj);
-} /* match_unary */
+ regex_t regex;
+ _Bool free_regex = 0;
+
+ assert((m->type == MATCHER_REGEX)
+ || (m->type == MATCHER_NREGEX));
+
+ if (! CMP_M(m)->right->type) {
+ assert(CMP_M(m)->right->data.type == SDB_TYPE_REGEX);
+ regex = CMP_M(m)->right->data.data.re.regex;
+ }
+ else {
+ sdb_data_t tmp = SDB_DATA_INIT;
+ char *raw;
+
+ if (sdb_store_expr_eval(CMP_M(m)->right, obj, &tmp, filter))
+ return 0;
+
+ if (tmp.type != SDB_TYPE_STRING) {
+ sdb_data_free_datum(&tmp);
+ return 0;
+ }
+
+ raw = tmp.data.string;
+ if (sdb_data_parse(raw, SDB_TYPE_REGEX, &tmp)) {
+ free(raw);
+ return 0;
+ }
+
+ regex = tmp.data.re.regex;
+ free_regex = 1;
+ free(tmp.data.re.raw);
+ free(raw);
+ }
+
+ if ((sdb_store_expr_eval(CMP_M(m)->left, obj, &v, filter))
+ || (sdb_data_isnull(&v)))
+ status = 0;
+ else {
+ char value[sdb_data_strlen(&v) + 1];
+ if (sdb_data_format(&v, value, sizeof(value), SDB_UNQUOTED) < 0)
+ status = 0;
+ else if (! regexec(®ex, value, 0, NULL, 0))
+ status = 1;
+ }
+
+ if (free_regex)
+ regfree(®ex);
+ sdb_data_free_datum(&v);
+ if (m->type == MATCHER_NREGEX)
+ return !status;
+ return status;
+} /* match_regex */
static int
-match_obj(sdb_store_matcher_t *m, sdb_store_base_t *obj)
+match_isnull(sdb_store_matcher_t *m, sdb_store_obj_t *obj,
+ sdb_store_matcher_t *filter)
{
+ sdb_data_t v = SDB_DATA_INIT;
int status;
- assert(m && obj);
+ assert((m->type == MATCHER_ISNULL) || (m->type == MATCHER_ISNNULL));
- status = match_obj_name(&OBJ_M(m)->name, obj->super.name);
- if (! status)
- return status;
+ /* TODO: this might hide real errors;
+ * improve error reporting and propagation */
+ if (sdb_store_expr_eval(ISNULL_M(m)->expr, obj, &v, filter)
+ || sdb_data_isnull(&v))
+ status = 1;
+ else
+ status = 0;
- switch (m->type) {
- case MATCHER_ATTR:
- return match_attr(ATTR_M(m), obj);
- break;
- case MATCHER_HOST:
- return match_host(HOST_M(m), obj);
- break;
- default:
- assert(m->type != m->type);
- break;
- }
- return 0;
-} /* match_obj */
+ sdb_data_free_datum(&v);
+ if (m->type == MATCHER_ISNNULL)
+ return !status;
+ return status;
+} /* match_isnull */
+
+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 */
+static matcher_cb
+matchers[] = {
+ match_logical,
+ match_logical,
+ match_unary,
+ match_name,
+ match_child,
+ match_child,
+ match_child,
+ match_lt,
+ match_le,
+ match_eq,
+ match_ne,
+ match_ge,
+ match_gt,
+ match_in,
+ match_regex,
+ match_regex,
+ match_isnull,
+ match_isnull,
+};
/*
* private matcher types
*/
-/* initializes a name matcher consuming two elements from ap */
+/* initializes a string matcher consuming two elements from ap */
static int
-name_matcher_init(name_matcher_t *m, va_list ap)
+string_matcher_init(string_matcher_t *m, va_list ap)
{
const char *name = va_arg(ap, const char *);
const char *name_re = va_arg(ap, const char *);
return -1;
}
return 0;
-} /* name_matcher_init */
+} /* string_matcher_init */
static void
-name_matcher_destroy(name_matcher_t *m)
+string_matcher_destroy(string_matcher_t *m)
{
if (m->name)
free(m->name);
regfree(m->name_re);
free(m->name_re);
}
-} /* name_matcher_destroy */
+} /* string_matcher_destroy */
-/* initializes an object matcher consuming two elements from ap */
+/* initializes a name matcher */
static int
-obj_matcher_init(sdb_object_t *obj, va_list ap)
+name_matcher_init(sdb_object_t *obj, va_list ap)
{
- obj_matcher_t *m = OBJ_M(obj);
+ name_matcher_t *m = NAME_M(obj);
M(obj)->type = MATCHER_NAME;
- return name_matcher_init(&m->name, ap);
-} /* obj_matcher_init */
+ return string_matcher_init(&m->name, ap);
+} /* name_matcher_init */
static void
-obj_matcher_destroy(sdb_object_t *obj)
+name_matcher_destroy(sdb_object_t *obj)
{
- obj_matcher_t *m = OBJ_M(obj);
- name_matcher_destroy(&m->name);
-} /* obj_matcher_destroy */
+ name_matcher_t *m = NAME_M(obj);
+ string_matcher_destroy(&m->name);
+} /* name_matcher_destroy */
static int
-attr_matcher_init(sdb_object_t *obj, va_list ap)
+op_matcher_init(sdb_object_t *obj, va_list ap)
{
- attr_matcher_t *attr = ATTR_M(obj);
- int status;
+ M(obj)->type = va_arg(ap, int);
+ if ((M(obj)->type != MATCHER_OR) && (M(obj)->type != MATCHER_AND))
+ return -1;
- status = obj_matcher_init(obj, ap);
- if (! status)
- status = name_matcher_init(&attr->value, ap);
+ OP_M(obj)->left = va_arg(ap, sdb_store_matcher_t *);
+ sdb_object_ref(SDB_OBJ(OP_M(obj)->left));
+ OP_M(obj)->right = va_arg(ap, sdb_store_matcher_t *);
+ sdb_object_ref(SDB_OBJ(OP_M(obj)->right));
- M(obj)->type = MATCHER_ATTR;
- return status;
-} /* attr_matcher_init */
+ if ((! OP_M(obj)->left) || (! OP_M(obj)->right))
+ return -1;
+ return 0;
+} /* op_matcher_init */
static void
-attr_matcher_destroy(sdb_object_t *obj)
+op_matcher_destroy(sdb_object_t *obj)
{
- attr_matcher_t *attr = ATTR_M(obj);
-
- obj_matcher_destroy(obj);
- name_matcher_destroy(&attr->value);
-} /* attr_matcher_destroy */
+ if (OP_M(obj)->left)
+ sdb_object_deref(SDB_OBJ(OP_M(obj)->left));
+ if (OP_M(obj)->right)
+ sdb_object_deref(SDB_OBJ(OP_M(obj)->right));
+} /* op_matcher_destroy */
static int
-host_matcher_init(sdb_object_t *obj, va_list ap)
+child_matcher_init(sdb_object_t *obj, va_list ap)
{
- attr_matcher_t *attr;
- int status;
-
- status = obj_matcher_init(obj, ap);
- if (status)
- return status;
+ M(obj)->type = va_arg(ap, int);
+ CHILD_M(obj)->m = va_arg(ap, sdb_store_matcher_t *);
- attr = va_arg(ap, attr_matcher_t *);
- sdb_object_ref(SDB_OBJ(attr));
- HOST_M(obj)->attr = attr;
+ if (! CHILD_M(obj)->m)
+ return -1;
- M(obj)->type = MATCHER_HOST;
+ sdb_object_ref(SDB_OBJ(CHILD_M(obj)->m));
return 0;
-} /* host_matcher_init */
+} /* child_matcher_init */
static void
-host_matcher_destroy(sdb_object_t *obj)
+child_matcher_destroy(sdb_object_t *obj)
{
- obj_matcher_destroy(obj);
- sdb_object_deref(SDB_OBJ(HOST_M(obj)->attr));
-} /* host_matcher_destroy */
+ sdb_object_deref(SDB_OBJ(CHILD_M(obj)->m));
+} /* child_matcher_destroy */
static int
-op_matcher_init(sdb_object_t *obj, va_list ap)
+cmp_matcher_init(sdb_object_t *obj, va_list ap)
{
M(obj)->type = va_arg(ap, int);
- if ((M(obj)->type != MATCHER_OR) && (M(obj)->type != MATCHER_AND))
- return -1;
- OP_M(obj)->left = va_arg(ap, sdb_store_matcher_t *);
- sdb_object_ref(SDB_OBJ(OP_M(obj)->left));
- OP_M(obj)->right = va_arg(ap, sdb_store_matcher_t *);
- sdb_object_ref(SDB_OBJ(OP_M(obj)->right));
+ 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 ((! OP_M(obj)->left) || (! OP_M(obj)->right))
+ if ((! CMP_M(obj)->left) || (! CMP_M(obj)->right))
return -1;
return 0;
-} /* op_matcher_init */
+} /* cmp_matcher_init */
static void
-op_matcher_destroy(sdb_object_t *obj)
+cmp_matcher_destroy(sdb_object_t *obj)
{
- if (OP_M(obj)->left)
- sdb_object_deref(SDB_OBJ(OP_M(obj)->left));
- if (OP_M(obj)->right)
- sdb_object_deref(SDB_OBJ(OP_M(obj)->right));
-} /* op_matcher_destroy */
+ sdb_object_deref(SDB_OBJ(CMP_M(obj)->left));
+ sdb_object_deref(SDB_OBJ(CMP_M(obj)->right));
+} /* cmp_matcher_destroy */
static int
uop_matcher_init(sdb_object_t *obj, va_list ap)
sdb_object_deref(SDB_OBJ(UOP_M(obj)->op));
} /* uop_matcher_destroy */
-static sdb_type_t name_type = {
- /* size = */ sizeof(obj_matcher_t),
- /* init = */ obj_matcher_init,
- /* destroy = */ obj_matcher_destroy,
-};
+static int
+isnull_matcher_init(sdb_object_t *obj, va_list ap)
+{
+ M(obj)->type = va_arg(ap, int);
+ if ((M(obj)->type != MATCHER_ISNULL) && (M(obj)->type != MATCHER_ISNNULL))
+ return -1;
-static sdb_type_t attr_type = {
- /* size = */ sizeof(attr_matcher_t),
- /* init = */ attr_matcher_init,
- /* destroy = */ attr_matcher_destroy,
-};
+ ISNULL_M(obj)->expr = va_arg(ap, sdb_store_expr_t *);
+ sdb_object_ref(SDB_OBJ(ISNULL_M(obj)->expr));
+ return 0;
+} /* isnull_matcher_init */
+
+static void
+isnull_matcher_destroy(sdb_object_t *obj)
+{
+ sdb_object_deref(SDB_OBJ(ISNULL_M(obj)->expr));
+ ISNULL_M(obj)->expr = NULL;
+} /* isnull_matcher_destroy */
-static sdb_type_t host_type = {
- /* size = */ sizeof(host_matcher_t),
- /* init = */ host_matcher_init,
- /* destroy = */ host_matcher_destroy,
+static sdb_type_t name_type = {
+ /* size = */ sizeof(name_matcher_t),
+ /* init = */ name_matcher_init,
+ /* destroy = */ name_matcher_destroy,
};
static sdb_type_t op_type = {
/* 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,
+ /* destroy = */ isnull_matcher_destroy,
+};
+
/*
* public API
*/
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;
- OBJ_M(m)->obj_type = type;
+ NAME_M(m)->obj_type = type;
return m;
} /* sdb_store_name_matcher */
sdb_store_matcher_t *
-sdb_store_attr_matcher(const char *attr_name, const char *attr_name_re,
- const char *attr_value, const char *attr_value_re)
+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_expr_t *left, sdb_store_expr_t *right)
+{
+ return M(sdb_object_create("lt-matcher", cmp_type,
+ MATCHER_LT, left, right));
+} /* sdb_store_lt_matcher */
+
+sdb_store_matcher_t *
+sdb_store_le_matcher(sdb_store_expr_t *left, sdb_store_expr_t *right)
+{
+ return M(sdb_object_create("le-matcher", cmp_type,
+ MATCHER_LE, left, right));
+} /* sdb_store_le_matcher */
+
+sdb_store_matcher_t *
+sdb_store_eq_matcher(sdb_store_expr_t *left, sdb_store_expr_t *right)
+{
+ return M(sdb_object_create("eq-matcher", cmp_type,
+ MATCHER_EQ, left, right));
+} /* sdb_store_eq_matcher */
+
+sdb_store_matcher_t *
+sdb_store_ne_matcher(sdb_store_expr_t *left, sdb_store_expr_t *right)
+{
+ return M(sdb_object_create("ne-matcher", cmp_type,
+ MATCHER_NE, left, right));
+} /* sdb_store_ne_matcher */
+
+sdb_store_matcher_t *
+sdb_store_ge_matcher(sdb_store_expr_t *left, sdb_store_expr_t *right)
+{
+ return M(sdb_object_create("ge-matcher", cmp_type,
+ MATCHER_GE, left, right));
+} /* sdb_store_ge_matcher */
+
+sdb_store_matcher_t *
+sdb_store_gt_matcher(sdb_store_expr_t *left, sdb_store_expr_t *right)
+{
+ return M(sdb_object_create("gt-matcher", cmp_type,
+ MATCHER_GT, left, right));
+} /* sdb_store_gt_matcher */
+
+sdb_store_matcher_t *
+sdb_store_in_matcher(sdb_store_expr_t *left, sdb_store_expr_t *right)
+{
+ return M(sdb_object_create("in-matcher", cmp_type,
+ MATCHER_IN, left, right));
+} /* sdb_store_in_matcher */
+
+sdb_store_matcher_t *
+sdb_store_regex_matcher(sdb_store_expr_t *left, sdb_store_expr_t *right)
+{
+ if (! right->type) {
+ if ((right->data.type != SDB_TYPE_STRING)
+ && (right->data.type != SDB_TYPE_REGEX))
+ return NULL;
+
+ if (right->data.type == SDB_TYPE_STRING) {
+ char *raw = right->data.data.string;
+ if (sdb_data_parse(raw, SDB_TYPE_REGEX, &right->data))
+ return NULL;
+ free(raw);
+ }
+ }
+ return M(sdb_object_create("regex-matcher", cmp_type,
+ MATCHER_REGEX, left, right));
+} /* sdb_store_regex_matcher */
+
+sdb_store_matcher_t *
+sdb_store_nregex_matcher(sdb_store_expr_t *left, sdb_store_expr_t *right)
+{
+ sdb_store_matcher_t *m = sdb_store_regex_matcher(left, right);
+ if (! m)
+ return NULL;
+ m->type = MATCHER_NREGEX;
+ return m;
+} /* sdb_store_nregex_matcher */
+
+sdb_store_matcher_t *
+sdb_store_isnull_matcher(sdb_store_expr_t *expr)
{
- return M(sdb_object_create("attr-matcher", attr_type,
- attr_name, attr_name_re, attr_value, attr_value_re));
-} /* sdb_store_attr_matcher */
+ return M(sdb_object_create("isnull-matcher", isnull_type,
+ MATCHER_ISNULL, expr));
+} /* sdb_store_isnull_matcher */
sdb_store_matcher_t *
-sdb_store_host_matcher(const char *host_name, const char *host_name_re,
- sdb_store_matcher_t *attr_matcher)
+sdb_store_isnnull_matcher(sdb_store_expr_t *expr)
+{
+ return M(sdb_object_create("isnull-matcher", isnull_type,
+ MATCHER_ISNNULL, expr));
+} /* sdb_store_isnnull_matcher */
+
+sdb_store_matcher_op_cb
+sdb_store_parse_matcher_op(const char *op)
+{
+ if (! strcasecmp(op, "<"))
+ return sdb_store_lt_matcher;
+ else if (! strcasecmp(op, "<="))
+ return sdb_store_le_matcher;
+ else if (! strcasecmp(op, "="))
+ return sdb_store_eq_matcher;
+ else if (! strcasecmp(op, "!="))
+ return sdb_store_ne_matcher;
+ else if (! strcasecmp(op, ">="))
+ return sdb_store_ge_matcher;
+ else if (! strcasecmp(op, ">"))
+ return sdb_store_gt_matcher;
+ else if (! strcasecmp(op, "=~"))
+ return sdb_store_regex_matcher;
+ else if (! strcasecmp(op, "!~"))
+ return sdb_store_nregex_matcher;
+ return NULL;
+} /* sdb_store_parse_matcher_op */
+
+int
+sdb_store_parse_object_type_plural(const char *name)
{
- return M(sdb_object_create("host-matcher", host_type,
- host_name, host_name_re, attr_matcher));
-} /* sdb_store_host_matcher */
+ 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, "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;
+ 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 *
+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 */
sdb_store_matcher_t *
-sdb_store_matcher_parse_cmp(const char *obj_type, const char *attr,
- const char *op, const char *value)
+sdb_store_matcher_parse_cmp(const char *obj_type,
+ 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;
- const char *matcher = NULL;
- const char *matcher_re = 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
+ return NULL;
- /* TODO: support other operators */
+ /* XXX: this code sucks! */
if (! strcasecmp(op, "=")) {
- matcher = value;
+ /* nothing to do */
}
else if (! strcasecmp(op, "!=")) {
- matcher = value;
inv = 1;
}
else if (! strcasecmp(op, "=~")) {
- matcher_re = value;
re = 1;
}
else if (! strcasecmp(op, "!~")) {
- matcher_re = value;
inv = 1;
re = 1;
}
else
return NULL;
- if (! strcasecmp(attr, "name"))
- m = sdb_store_name_matcher(type, value, re);
- else if (type == SDB_ATTRIBUTE) {
- m = sdb_store_host_matcher(/* name = */ NULL, NULL,
- sdb_store_attr_matcher(attr, NULL, matcher, matcher_re));
-
- /* pass ownership to the host matcher */
- if (m)
- sdb_object_deref(SDB_OBJ(HOST_M(m)->attr));
- }
-
- if (! m)
+ 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;
+ if (sdb_store_expr_eval(expr, /* obj */ NULL, &value, /* filter */ NULL)
+ || (value.type != SDB_TYPE_STRING)) {
+ sdb_data_free_datum(&value);
+ return NULL;
}
- return m;
+
+ m = sdb_store_name_matcher(type, value.data.string, re);
+ sdb_data_free_datum(&value);
+ return maybe_inv_matcher(m, inv);
} /* sdb_store_matcher_parse_cmp */
sdb_store_matcher_t *
} /* sdb_store_inv_matcher */
int
-sdb_store_matcher_matches(sdb_store_matcher_t *m, sdb_store_base_t *obj)
+sdb_store_matcher_matches(sdb_store_matcher_t *m, sdb_store_obj_t *obj,
+ sdb_store_matcher_t *filter)
{
+ if (filter && (! sdb_store_matcher_matches(filter, obj, NULL)))
+ return 0;
+
/* "NULL" always matches */
if ((! m) || (! obj))
return 1;
if ((m->type < 0) || ((size_t)m->type >= SDB_STATIC_ARRAY_LEN(matchers)))
return 0;
- return matchers[m->type](m, obj);
+ return matchers[m->type](m, obj, filter);
} /* sdb_store_matcher_matches */
-char *
-sdb_store_matcher_tostring(sdb_store_matcher_t *m, char *buf, size_t buflen)
-{
- if (! m)
- return NULL;
-
- if ((m->type < 0)
- || (((size_t)m->type >= SDB_STATIC_ARRAY_LEN(matchers_tostring))))
- return NULL;
- return matchers_tostring[m->type](m, buf, buflen);
-} /* sdb_store_matcher_tostring */
-
int
-sdb_store_lookup(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)
{
- lookup_iter_data_t data = { m, cb, user_data };
+ scan_iter_data_t data = { m, filter, cb, user_data };
if (! cb)
return -1;
- return sdb_store_iterate(lookup_iter, &data);
-} /* sdb_store_lookup */
+ return sdb_store_iterate(scan_iter, &data);
+} /* sdb_store_scan */
/* vim: set tw=78 sw=4 ts=4 noexpandtab : */