-/* Copyright (c) 2009 Nicira Networks.
+/* Copyright (c) 2009, 2010 Nicira Networks.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
struct list src_arcs; /* Forward arcs (ovsdb_idl_arc.src_node). */
struct list dst_arcs; /* Backward arcs (ovsdb_idl_arc.dst_node). */
struct ovsdb_idl_table *table; /* Containing table. */
- struct ovsdb_datum *fields; /* Row data, or null if orphaned. */
+ struct ovsdb_datum *old; /* Committed data (null if orphaned). */
+
+ /* Transactional data. */
+ struct ovsdb_datum *new; /* Modified data (null to delete row). */
+ unsigned long int *prereqs; /* Bitmap of columns to verify in "old". */
+ unsigned long int *written; /* Bitmap of columns from "new" to write. */
+ struct hmap_node txn_node; /* Node in ovsdb_idl_txn's list. */
};
struct ovsdb_idl_column {
char *name;
struct ovsdb_type type;
+ void (*parse)(struct ovsdb_idl_row *, const struct ovsdb_datum *);
+ void (*unparse)(struct ovsdb_idl_row *);
};
struct ovsdb_idl_table_class {
const struct ovsdb_idl_column *columns;
size_t n_columns;
size_t allocation_size;
- void (*parse)(struct ovsdb_idl_row *);
- void (*unparse)(struct ovsdb_idl_row *);
+};
+
+enum ovsdb_idl_mode {
+ /* Client reads and may write this column and wants to be alerted upon
+ * updates to it.
+ *
+ * This is the default. */
+ OVSDB_IDL_MODE_RW,
+
+ /* Client may read and write this column, but doesn't care to be alerted
+ * when it is updated.
+ *
+ * This is useful for columns that a client treats as "write-only", that
+ * is, it updates them but doesn't want to get alerted about its own
+ * updates. It also won't be alerted about other clients' updates, so this
+ * is suitable only for use by a client that "owns" a particular column. */
+ OVSDB_IDL_MODE_WO,
+
+ /* Client won't read or write this column at all. The IDL code can't
+ * prevent reading the column, but writing will cause assertion
+ * failures. */
+ OVSDB_IDL_MODE_NONE
};
struct ovsdb_idl_table {
const struct ovsdb_idl_table_class *class;
+ unsigned char *modes; /* One of OVSDB_MODE_*, indexed by column. */
struct shash columns; /* Contains "const struct ovsdb_idl_column *"s. */
struct hmap rows; /* Contains "struct ovsdb_idl_row"s. */
struct ovsdb_idl *idl; /* Containing idl. */
};
struct ovsdb_idl_class {
+ const char *database; /* <db-name> for this database. */
const struct ovsdb_idl_table_class *tables;
size_t n_tables;
};
struct ovsdb_idl_table_class *dst_table,
const struct uuid *dst_uuid);
-struct ovsdb_idl_row *ovsdb_idl_first_row(
- const struct ovsdb_idl *, const struct ovsdb_idl_table_class *);
+void ovsdb_idl_txn_verify(const struct ovsdb_idl_row *,
+ const struct ovsdb_idl_column *);
-struct ovsdb_idl_row *ovsdb_idl_next_row(const struct ovsdb_idl_row *);
+struct ovsdb_idl_txn *ovsdb_idl_txn_get(const struct ovsdb_idl_row *);
#endif /* ovsdb-idl-provider.h */