store_lookup: Added sdb_store_inv_matcher().

[sysdb.git] / src / core / store_lookup.c

diff --git a/src/core/store_lookup.c b/src/core/store_lookup.c
index b73068486cf69811a85d7487b27ad7f41f741c5a..d43b9e32c764c10e0a372dabd71a79d3d30668f2 100644 (file)
--- a/src/core/store_lookup.c
+++ b/src/core/store_lookup.c
@@ -78,6 +78,8 @@ lookup_iter(sdb_store_base_t *obj, void *user_data)
 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 */
@@ -210,6 +212,7 @@ typedef int (*matcher_cb)(sdb_store_matcher_t *, sdb_store_base_t *);
 static matcher_cb matchers[] = {
        match_logical,
        match_logical,
+       match_unary,
        match_obj,
        match_obj,
        match_obj,
@@ -233,6 +236,15 @@ 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)
 {
@@ -416,6 +428,28 @@ op_matcher_destroy(sdb_object_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,
@@ -440,6 +474,12 @@ static sdb_type_t op_type = {
        /* 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
  */
@@ -524,6 +564,12 @@ sdb_store_con_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)
 {