data: Added basic support for arrays.

[sysdb.git] / src / include / core / data.h

diff --git a/src/include/core/data.h b/src/include/core/data.h
index c8c7482e796f4438aeafdb8eebe4588223636e7b..cfdf48db8ea7d63fd1c2ef718901706bd10ca2e0 100644 (file)
--- a/src/include/core/data.h
+++ b/src/include/core/data.h
@@ -48,6 +48,9 @@ enum {
        SDB_TYPE_DATETIME,
        SDB_TYPE_BINARY,
        SDB_TYPE_REGEX, /* extended, case-insensitive POSIX regex */
+
+       /* flags: */
+       SDB_TYPE_ARRAY = 1 << 8,
 };
 
 #define SDB_TYPE_TO_STRING(t) \
@@ -58,26 +61,36 @@ enum {
                : ((t) == SDB_TYPE_BINARY) ? "BINARY" \
                : ((t) == SDB_TYPE_REGEX) ? "REGEX" : "UNKNOWN")
 
+union sdb_datum;
+typedef union sdb_datum sdb_datum_t;
+
+union sdb_datum {
+       int64_t     integer;  /* SDB_TYPE_INTEGER */
+       double      decimal;  /* SDB_TYPE_DECIMAL */
+       char       *string;   /* SDB_TYPE_STRING  */
+       sdb_time_t  datetime; /* SDB_TYPE_DATETIME */
+       struct {
+               size_t length;
+               unsigned char *datum;
+       } binary;             /* SDB_TYPE_BINARY */
+       struct {
+               char *raw;
+               regex_t regex;
+       } re;                 /* SDB_TYPE_REGEX */
+
+       struct {
+               size_t length;
+               void *values;
+       } array;
+};
+
 /*
  * sdb_data_t:
- * A datum retrieved from an arbitrary data source.
+ * An arbitrary value of a specified type.
  */
 typedef struct {
-       int type;
-       union {
-               int64_t     integer;  /* SDB_TYPE_INTEGER */
-               double      decimal;  /* SDB_TYPE_DECIMAL */
-               char       *string;   /* SDB_TYPE_STRING  */
-               sdb_time_t  datetime; /* SDB_TYPE_DATETIME */
-               struct {
-                       size_t length;
-                       unsigned char *datum;
-               } binary;             /* SDB_TYPE_BINARY */
-               struct {
-                       char *raw;
-                       regex_t regex;
-               } re;                 /* SDB_TYPE_REGEX */
-       } data;
+       int type;  /* type of the datum */
+       sdb_datum_t data;
 } sdb_data_t;
 #define SDB_DATA_INIT { SDB_TYPE_NULL, { .integer = 0 } }