Changeset d0febca in mainline for uspace/app/sbi/src/rdata_t.h

Timestamp:

2010-03-13T12:04:37Z (14 years ago)

Author:

Jiri Svoboda <jiri@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

7715994

Parents:

94d484a

Message:

Update SBI to rev. 100.

File:

• uspace/app/sbi/src/rdata_t.h (modified) (1 diff)

uspace/app/sbi/src/rdata_t.h

@@ -131 +131 @@
 } rdata_var_t;
 
-/** Address item. */
-typedef struct rdata_address {
+/** Address class */
+typedef enum {
+        /** Variable address */
+        ac_var,
+
+        /** Property address */
+        ac_prop
+} address_class_t;
+
+/** Variable address */
+typedef struct {
         /** Targeted variable */
         rdata_var_t *vref;
+} rdata_addr_var_t;
+
+/** Named property address */
+typedef struct {
+        /** Delegate to the property */
+        rdata_deleg_t *prop_d;
+} rdata_aprop_named_t;
+
+/** Indexed property address */
+typedef struct {
+        /** Delegate to the object (or CSI) which is being indexed. */
+        rdata_deleg_t *object_d;
+
+        /** Arguments (indices) */
+        list_t args; /* of rdata_item_t */
+} rdata_aprop_indexed_t;
+
+typedef enum {
+        /* Named property address */
+        apc_named,
+
+        /* Indexed property address */
+        apc_indexed
+} aprop_class_t;
+
+/** Property address.
+ *
+ * When accessing part of a property that is non-scalar and mutable,
+ * a read-modify-write (or get-modify-set) operation is necessary.
+ * To accomodate this, the address item must hold a temporary copy of the
+ * property value.
+ */
+typedef struct {
+        aprop_class_t apc;
+
+        /** Temporary copy of property value or @c NULL when not used. */
+        struct rdata_value *tvalue;
+
+        /**
+         * Points to the specific var node within @c tvalue that is addressed
+         * or @c NULL when @c tvalue is not used.
+         */
+        rdata_var_t *tpos;
+
+        union {
+                rdata_aprop_named_t *named;
+                rdata_aprop_indexed_t *indexed;
+        } u;
+} rdata_addr_prop_t;
+
+/** Address item */
+typedef struct rdata_address {
+        address_class_t ac;
+
+        union {
+                rdata_addr_var_t *var_a;
+                rdata_addr_prop_t *prop_a;
+        } u;
 } rdata_address_t;