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index 90ca2fed6060b36e15b8d4e04ea6fbdc341c0b07..476e0e717d9fb5c788651722d5e2a4948dcd696e 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;
-} lookup_iter_data_t;
+} scan_iter_data_t;
/*
* private helper functions
*/
static int
-lookup_iter(sdb_store_obj_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 */
-static sdb_store_obj_t *
-attr_get(sdb_host_t *host, const char *name)
+static sdb_attribute_t *
+attr_get(sdb_host_t *host, const char *name, sdb_store_matcher_t *filter)
{
- sdb_llist_iter_t *iter = NULL;
- sdb_store_obj_t *attr = NULL;
+ sdb_avltree_iter_t *iter = NULL;
+ sdb_attribute_t *attr = NULL;
- iter = sdb_llist_get_iter(host->attributes);
- while (sdb_llist_iter_has_next(iter)) {
- sdb_attribute_t *a = ATTR(sdb_llist_iter_get_next(iter));
+ iter = sdb_avltree_get_iter(host->attributes);
+ while (sdb_avltree_iter_has_next(iter)) {
+ sdb_attribute_t *a = ATTR(sdb_avltree_iter_get_next(iter));
if (strcasecmp(name, SDB_OBJ(a)->name))
continue;
- attr = STORE_OBJ(a);
+
+ assert(STORE_OBJ(a)->type == SDB_ATTRIBUTE);
+ attr = a;
break;
}
- sdb_llist_iter_destroy(iter);
+ 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_store_obj_t *obj, 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(attr_get(HOST(obj), 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, &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 */
/*
} /* match_string */
static int
-match_logical(sdb_store_matcher_t *m, sdb_store_obj_t *obj)
+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, obj);
+ 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, obj);
+ return sdb_store_matcher_matches(OP_M(m)->right, obj, filter);
} /* match_logical */
static int
-match_unary(sdb_store_matcher_t *m, sdb_store_obj_t *obj)
+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, obj);
+ return !sdb_store_matcher_matches(UOP_M(m)->op, obj, filter);
} /* match_unary */
static int
-match_name(sdb_store_matcher_t *m, sdb_store_obj_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->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, obj->super.name);
- break;
case SDB_SERVICE:
- iter = sdb_llist_get_iter(HOST(obj)->services);
+ iter = sdb_avltree_get_iter(HOST(obj)->services);
break;
case SDB_ATTRIBUTE:
- iter = sdb_llist_get_iter(HOST(obj)->attributes);
+ iter = sdb_avltree_get_iter(HOST(obj)->attributes);
break;
}
- while (sdb_llist_iter_has_next(iter)) {
- sdb_store_obj_t *child = STORE_OBJ(sdb_llist_iter_get_next(iter));
- if (match_string(&NAME_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 */
static int
-match_attr(sdb_store_matcher_t *m, sdb_store_obj_t *obj)
+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(attr_get(HOST(obj), 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_store_obj_t *obj)
+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(obj, 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_store_obj_t *obj)
+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(obj, 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_store_obj_t *obj)
+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(obj, 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_store_obj_t *obj)
+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(obj, 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_store_obj_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 = COND_M(m)->cond->cmp(obj, COND_M(m)->cond);
+ status = COND_M(m)->cond->cmp(obj, COND_M(m)->cond, filter);
return (status != INT_MAX) && (status > 0);
} /* match_gt */
-typedef int (*matcher_cb)(sdb_store_matcher_t *, sdb_store_obj_t *);
+static int
+match_isnull(sdb_store_matcher_t *m, sdb_store_obj_t *obj,
+ sdb_store_matcher_t *filter)
+{
+ assert(m->type == MATCHER_ISNULL);
+ 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_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[] = {
+static matcher_cb
+matchers[] = {
match_logical,
match_logical,
match_unary,
match_eq,
match_ge,
match_gt,
+ match_isnull,
};
/*
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 = {
cond_tostring(sdb_store_matcher_t *m, char *buf, size_t buflen)
{
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");
+ sdb_data_t value = SDB_DATA_INIT;
+ char value_str[buflen];
+ if (sdb_store_expr_eval(ATTR_C(COND_M(m)->cond)->expr, &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, "ATTR[%s]{ %s %s }",
- ATTR_C(COND_M(m)->cond)->name, MATCHER_SYM(m->type), value);
+ ATTR_C(COND_M(m)->cond)->name, MATCHER_SYM(m->type),
+ value_str);
+ sdb_data_free_datum(&value);
}
+ else
+ snprintf(buf, buflen, "<unknown>");
return buf;
} /* cond_tostring */
return buf;
} /* uop_tostring */
+static int
+isnull_matcher_init(sdb_object_t *obj, va_list ap)
+{
+ const char *name;
+
+ M(obj)->type = va_arg(ap, int);
+ if (M(obj)->type != MATCHER_ISNULL)
+ return -1;
+
+ name = va_arg(ap, const char *);
+ if (! name)
+ return -1;
+ ISNULL_M(obj)->attr_name = strdup(name);
+ if (! ISNULL_M(obj)->attr_name)
+ return -1;
+ return 0;
+} /* isnull_matcher_init */
+
+static void
+isnull_matcher_destroy(sdb_object_t *obj)
+{
+ if (ISNULL_M(obj)->attr_name)
+ free(ISNULL_M(obj)->attr_name);
+ ISNULL_M(obj)->attr_name = NULL;
+} /* isnull_matcher_destroy */
+
+static char *
+isnull_tostring(sdb_store_matcher_t *m, char *buf, size_t buflen)
+{
+ snprintf(buf, buflen, "(IS NULL, ATTR[%s])", ISNULL_M(m)->attr_name);
+ return buf;
+} /* isnull_tostring */
+
static sdb_type_t name_type = {
/* size = */ sizeof(name_matcher_t),
/* init = */ name_matcher_init,
/* destroy = */ uop_matcher_destroy,
};
+static sdb_type_t isnull_type = {
+ /* size = */ sizeof(isnull_matcher_t),
+ /* init = */ isnull_matcher_init,
+ /* destroy = */ isnull_matcher_destroy,
+};
+
typedef char *(*matcher_tostring_cb)(sdb_store_matcher_t *, char *, size_t);
/* this array needs to be indexable by the matcher types;
* -> update the enum in store-private.h when updating this */
-static matcher_tostring_cb matchers_tostring[] = {
+static matcher_tostring_cb
+matchers_tostring[] = {
op_tostring,
op_tostring,
uop_tostring,
cond_tostring,
cond_tostring,
cond_tostring,
+ isnull_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_matcher_t *
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_GT, cond));
} /* sdb_store_gt_matcher */
+sdb_store_matcher_t *
+sdb_store_isnull_matcher(const char *attr_name)
+{
+ return M(sdb_object_create("isnull-matcher", isnull_type,
+ MATCHER_ISNULL, attr_name));
+} /* sdb_store_isnull_matcher */
+
static sdb_store_matcher_t *
-parse_attr_cmp(const char *attr, const char *op, const sdb_data_t *value)
+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;
sdb_store_cond_t *cond;
_Bool inv = 0;
- /* TODO: this will reject any attributes called "name";
- * use a different syntax for querying objects by name */
- if (! strcasecmp(attr, "name"))
+ if (! attr)
return NULL;
- if (! strcasecmp(op, "<"))
+ if (! strcasecmp(op, "IS")) {
+ if (! expr)
+ return sdb_store_isnull_matcher(attr);
+ else
+ return NULL;
+ }
+ else if (! expr)
+ return NULL;
+ else if (! strcasecmp(op, "<"))
matcher = sdb_store_lt_matcher;
else if (! strcasecmp(op, "<="))
matcher = sdb_store_le_matcher;
else
return NULL;
- cond = sdb_store_attr_cond(attr, value);
+ cond = sdb_store_attr_cond(attr, expr);
if (! cond)
return NULL;
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"))
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->type != SDB_TYPE_STRING) {
- if (type == SDB_ATTRIBUTE)
- return parse_attr_cmp(attr, op, value);
+ if (! expr)
+ return NULL;
+
+ if (sdb_store_expr_eval(expr, &value))
return NULL;
+ if (value.type != SDB_TYPE_STRING) {
+ sdb_data_free_datum(&value);
+ return parse_attr_cmp(attr, op, expr);
}
- if (! strcasecmp(attr, "name"))
- m = sdb_store_name_matcher(type, value->data.string, re);
+ if (! attr)
+ 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);
+
+ sdb_data_free_datum(&value);
if (! m)
return NULL;
} /* 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, obj);
+ return matchers[m->type](m, obj, filter);
} /* sdb_store_matcher_matches */
char *
} /* 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 : */