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index 45e7839b2debfe2365c93a51f17a1d17a5564afb..bb32157402d8c047a20326aab81e069a4073e5f1 100644 (file)
--- a/src/core/store_lookup.c
+++ b/src/core/store_lookup.c
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 */
return 1;
} /* match_name */
+static char *
+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;
+} /* name_tostring */
+
+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)
+{
+ 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 */
+
+static char *
+attr_tostring(sdb_store_matcher_t *m, char *buf, size_t buflen)
+{
+ char name[buflen + 1], value[buflen + 1];
+
+ if (! m) {
+ snprintf(buf, buflen, "ATTR{}");
+ return buf;
+ }
+
+ assert(m->type == MATCHER_ATTR);
+ snprintf(buf, buflen, "ATTR{ NAME%s, VALUE%s }",
+ name_tostring(&OBJ_M(m)->name, name, sizeof(name)),
+ name_tostring(&ATTR_M(m)->value, value, sizeof(value)));
+ return buf;
+} /* attr_tostring */
+
+static char *
+service_tostring(sdb_store_matcher_t *m, char *buf, size_t buflen)
+{
+ char name[buflen + 1], attr[buflen + 1];
+
+ if (! m) {
+ snprintf(buf, buflen, "SERVICE{}");
+ return buf;
+ }
+
+ assert(m->type == MATCHER_SERVICE);
+ snprintf(buf, buflen, "SERVICE{ NAME%s, %s }",
+ name_tostring(&OBJ_M(m)->name, name, sizeof(name)),
+ attr_tostring(SDB_STORE_MATCHER(SERVICE_M(m)->attr),
+ attr, sizeof(attr)));
+ return buf;
+} /* service_tostring */
+
+static char *
+host_tostring(sdb_store_matcher_t *m, char *buf, size_t buflen)
+{
+ char name[buflen + 1], service[buflen + 1], attr[buflen + 1];
+
+ if (! m) {
+ snprintf(buf, buflen, "HOST{}");
+ return buf;
+ }
+
+ assert(m->type == MATCHER_HOST);
+ snprintf(buf, buflen, "HOST{ NAME%s, %s, %s }",
+ name_tostring(&OBJ_M(m)->name, name, sizeof(name)),
+ service_tostring(SDB_STORE_MATCHER(HOST_M(m)->service),
+ service, sizeof(service)),
+ attr_tostring(SDB_STORE_MATCHER(HOST_M(m)->attr),
+ attr, sizeof(attr)));
+ return buf;
+} /* host_tostring */
+
/* match attribute specific values;
* always call this function through match_obj() */
static int
static matcher_cb matchers[] = {
match_logical,
match_logical,
+ match_unary,
match_obj,
match_obj,
match_obj,
};
+typedef char *(*matcher_tostring_cb)(sdb_store_matcher_t *, char *, size_t);
+
+static matcher_tostring_cb matchers_tostring[] = {
+ logical_tostring,
+ logical_tostring,
+ unary_tostring,
+ attr_tostring,
+ service_tostring,
+ host_tostring,
+};
+
static int
match_logical(sdb_store_matcher_t *m, sdb_store_base_t *obj)
{
return sdb_store_matcher_matches(OP_M(m)->right, obj);
} /* match_logical */
+static int
+match_unary(sdb_store_matcher_t *m, sdb_store_base_t *obj)
+{
+ assert(m && obj);
+ assert(UOP_M(m)->op);
+
+ return !sdb_store_matcher_matches(UOP_M(m)->op, obj);
+} /* match_unary */
+
static int
match_obj(sdb_store_matcher_t *m, sdb_store_base_t *obj)
{
sdb_object_deref(SDB_OBJ(OP_M(obj)->right));
} /* op_matcher_destroy */
+static int
+uop_matcher_init(sdb_object_t *obj, va_list ap)
+{
+ M(obj)->type = va_arg(ap, int);
+ if (M(obj)->type != MATCHER_NOT)
+ return -1;
+
+ UOP_M(obj)->op = va_arg(ap, sdb_store_matcher_t *);
+ sdb_object_ref(SDB_OBJ(UOP_M(obj)->op));
+
+ if (! UOP_M(obj)->op)
+ return -1;
+ return 0;
+} /* uop_matcher_init */
+
+static void
+uop_matcher_destroy(sdb_object_t *obj)
+{
+ if (UOP_M(obj)->op)
+ sdb_object_deref(SDB_OBJ(UOP_M(obj)->op));
+} /* uop_matcher_destroy */
+
static sdb_type_t attr_type = {
/* size = */ sizeof(attr_matcher_t),
/* init = */ attr_matcher_init,
/* destroy = */ op_matcher_destroy,
};
+static sdb_type_t uop_type = {
+ /* size = */ sizeof(uop_matcher_t),
+ /* init = */ uop_matcher_init,
+ /* destroy = */ uop_matcher_destroy,
+};
+
/*
* public API
*/
host_name, host_name_re, service_matcher, attr_matcher));
} /* sdb_store_host_matcher */
+sdb_store_matcher_t *
+sdb_store_matcher_parse_cmp(const char *obj_type, const char *attr,
+ const char *op, const char *value)
+{
+ int typ = -1;
+ int inv = 0;
+
+ sdb_store_matcher_t *m = NULL;
+
+ const char *matcher = NULL;
+ const char *matcher_re = NULL;
+
+ if (! strcasecmp(obj_type, "host"))
+ typ = SDB_HOST;
+ else if (! strcasecmp(obj_type, "service"))
+ typ = SDB_SERVICE;
+ else if (! strcasecmp(obj_type, "attribute"))
+ typ = SDB_ATTRIBUTE;
+
+ /* TODO: support other operators */
+ if (! strcasecmp(op, "=")) {
+ matcher = value;
+ }
+ else if (! strcasecmp(op, "!=")) {
+ matcher = value;
+ inv = 1;
+ }
+ else if (! strcasecmp(op, "=~")) {
+ matcher_re = value;
+ }
+ else if (! strcasecmp(op, "!~")) {
+ matcher_re = value;
+ inv = 1;
+ }
+ else
+ return NULL;
+
+ if (! strcasecmp(attr, "name")) {
+ /* accept */
+ }
+ else if (typ == SDB_ATTRIBUTE)
+ m = sdb_store_host_matcher(/* name = */ NULL, NULL,
+ /* service = */ NULL,
+ sdb_store_attr_matcher(attr, NULL, matcher, matcher_re));
+ else
+ return NULL;
+
+ if (m) {
+ /* accept the attribute value matcher */
+ }
+ else if (typ == SDB_HOST)
+ m = sdb_store_host_matcher(matcher, matcher_re, NULL, NULL);
+ else if (typ == SDB_SERVICE)
+ m = sdb_store_host_matcher(/* name = */ NULL, NULL,
+ sdb_store_service_matcher(matcher, matcher_re, NULL),
+ /* attr = */ NULL);
+ else if (typ == SDB_ATTRIBUTE)
+ m = sdb_store_host_matcher(/* name = */ NULL, NULL,
+ /* service = */ NULL,
+ sdb_store_attr_matcher(matcher, matcher_re, NULL, NULL));
+
+ if (m && 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 */
+
sdb_store_matcher_t *
sdb_store_dis_matcher(sdb_store_matcher_t *left, sdb_store_matcher_t *right)
{
left, right));
} /* sdb_store_con_matcher */
+sdb_store_matcher_t *
+sdb_store_inv_matcher(sdb_store_matcher_t *m)
+{
+ return M(sdb_object_create("inv-matcher", uop_type, MATCHER_NOT, m));
+} /* sdb_store_inv_matcher */
+
int
sdb_store_matcher_matches(sdb_store_matcher_t *m, sdb_store_base_t *obj)
{
return matchers[m->type](m, obj);
} /* 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)