store, frontend: Added support for matching NULL attributes.

[sysdb.git] / src / core / store-private.h

diff --git a/src/core/store-private.h b/src/core/store-private.h
index c7d99f9b910ee2abee60b4318c198db39f8ace1e..a2121f45c211dad50003007e6a438f9958725638 100644 (file)
--- a/src/core/store-private.h
+++ b/src/core/store-private.h
@@ -123,6 +123,7 @@ enum {
        MATCHER_EQ,
        MATCHER_GE,
        MATCHER_GT,
+       MATCHER_ISNULL,
 };
 
 #define MATCHER_SYM(t) \
@@ -136,6 +137,7 @@ enum {
                : ((t) == MATCHER_EQ) ? "=" \
                : ((t) == MATCHER_GE) ? ">=" \
                : ((t) == MATCHER_GT) ? ">" \
+               : ((t) == MATCHER_ISNULL) ? "IS NULL" \
                : "UNKNOWN")
 
 /* match the name of something */
@@ -188,6 +190,12 @@ typedef struct {
 } attr_matcher_t;
 #define ATTR_M(m) ((attr_matcher_t *)(m))
 
+typedef struct {
+       sdb_store_matcher_t super;
+       char *attr_name; /* we only support matching attributes */
+} isnull_matcher_t;
+#define ISNULL_M(m) ((isnull_matcher_t *)(m))
+
 /* match using conditionals */
 typedef struct {
        sdb_store_matcher_t super;