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index f1baea644a4c2f2b2ee16e18ecc3d531f0e4f723..05e6b74d51b70117bc01a06b1b17ca9ef0f77f50 100644 (file)
--- a/src/core/store_lookup.c
+++ b/src/core/store_lookup.c
return attr;
} /* attr_get */
-/*
- * conditional implementations
- */
-
-static int
-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;
-
- if (obj->type != SDB_HOST)
- return INT_MAX;
-
- 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 = sdb_data_strcmp(&attr->value, &value);
- 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 *filter)
-{
- sdb_data_t obj_value = SDB_DATA_INIT;
- sdb_data_t value = SDB_DATA_INIT;
- int status;
-
- if (sdb_store_expr_eval(OBJ_C(cond)->expr, obj, &value, filter))
- return INT_MAX;
-
- 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)) {
- status = 0;
- break;
- }
- }
- sdb_data_free_datum(&value);
- return status;
- }
-
- 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 */
-
/*
* matcher implementations
*/
return status;
} /* match_child */
-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 = 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,
- sdb_store_matcher_t *filter)
-{
- int status;
- assert(m->type == MATCHER_LE);
- 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,
- sdb_store_matcher_t *filter)
-{
- int status;
- assert(m->type == MATCHER_EQ);
- 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,
- sdb_store_matcher_t *filter)
-{
- int status;
- assert(m->type == MATCHER_GE);
- 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,
- sdb_store_matcher_t *filter)
-{
- int status;
- assert(m->type == MATCHER_GT);
- status = COND_M(m)->cond->cmp(obj, COND_M(m)->cond, filter);
- return (status != INT_MAX) && (status > 0);
-} /* match_gt */
-
/*
* cmp_expr:
* Compare the values of two expressions when evaluating them using the
free(raw);
}
- if (sdb_store_expr_eval(CMP_M(m)->left, obj, &v, filter))
+ 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];
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_isnull,
};
-/*
- * private conditional types
- */
-
-static int
-attr_cond_init(sdb_object_t *obj, va_list ap)
-{
- const char *name = va_arg(ap, const char *);
- sdb_store_expr_t *expr = va_arg(ap, sdb_store_expr_t *);
-
- if (! name)
- return -1;
-
- SDB_STORE_COND(obj)->cmp = attr_cmp;
-
- ATTR_C(obj)->name = strdup(name);
- if (! ATTR_C(obj)->name)
- return -1;
- ATTR_C(obj)->expr = expr;
- sdb_object_ref(SDB_OBJ(expr));
- return 0;
-} /* attr_cond_init */
-
-static void
-attr_cond_destroy(sdb_object_t *obj)
-{
- if (ATTR_C(obj)->name)
- free(ATTR_C(obj)->name);
- sdb_object_deref(SDB_OBJ(ATTR_C(obj)->expr));
-} /* attr_cond_destroy */
-
-static sdb_type_t attr_cond_type = {
- /* size = */ sizeof(attr_cond_t),
- /* init = */ attr_cond_init,
- /* 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
*/
string_matcher_destroy(&attr->value);
} /* attr_matcher_destroy */
-static int
-cond_matcher_init(sdb_object_t *obj, va_list ap)
-{
- int type = va_arg(ap, int);
- sdb_store_cond_t *cond = va_arg(ap, sdb_store_cond_t *);
-
- if (! cond)
- return -1;
-
- sdb_object_ref(SDB_OBJ(cond));
-
- M(obj)->type = type;
- COND_M(obj)->cond = cond;
- return 0;
-} /* cond_matcher_init */
-
-static void
-cond_matcher_destroy(sdb_object_t *obj)
-{
- sdb_object_deref(SDB_OBJ(COND_M(obj)->cond));
-} /* cond_matcher_destroy */
-
static int
op_matcher_init(sdb_object_t *obj, va_list ap)
{
/* destroy = */ attr_matcher_destroy,
};
-static sdb_type_t cond_type = {
- /* size = */ sizeof(cond_matcher_t),
- /* init = */ cond_matcher_init,
- /* destroy = */ cond_matcher_destroy,
-};
-
static sdb_type_t op_type = {
/* size = */ sizeof(op_matcher_t),
/* init = */ op_matcher_init,
* public API
*/
-sdb_store_cond_t *
-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, 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)
{
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)
-{
- return M(sdb_object_create("lt-matcher", cond_type,
- MATCHER_LT, cond));
-} /* sdb_store_lt_matcher */
-
-sdb_store_matcher_t *
-sdb_store_le_matcher(sdb_store_cond_t *cond)
-{
- return M(sdb_object_create("le-matcher", cond_type,
- MATCHER_LE, cond));
-} /* sdb_store_le_matcher */
-
-sdb_store_matcher_t *
-sdb_store_eq_matcher(sdb_store_cond_t *cond)
-{
- return M(sdb_object_create("eq-matcher", cond_type,
- MATCHER_EQ, cond));
-} /* sdb_store_eq_matcher */
-
-sdb_store_matcher_t *
-sdb_store_ge_matcher(sdb_store_cond_t *cond)
-{
- return M(sdb_object_create("ge-matcher", cond_type,
- MATCHER_GE, cond));
-} /* sdb_store_ge_matcher */
-
-sdb_store_matcher_t *
-sdb_store_gt_matcher(sdb_store_cond_t *cond)
-{
- return M(sdb_object_create("gt-matcher", cond_type,
- 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.
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;
- sdb_store_cond_t *cond;
- _Bool inv = 0;
-
- if (! attr)
- return NULL;
-
- if (! expr)
- return NULL;
- else if (parse_cond_op(op, &matcher, &inv))
- return NULL;
-
- 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));
- 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,
+sdb_store_matcher_parse_cmp(const char *obj_type,
const char *op, sdb_store_expr_t *expr)
{
int type = -1;
inv = 1;
re = 1;
}
- else if (type == SDB_ATTRIBUTE)
- return parse_attr_cmp(attr, op, expr);
else
return NULL;
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);
+ return NULL;
}
- 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_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_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;
-
- 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)
{