X-Git-Url: https://pintos-os.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=lib%2Fovsdb-idl-provider.h;h=040a699964b38c0c9991517f67f4c0ac8ae3a155;hb=c06955bc63bf504fc6fa87fd9780993bc45cad09;hp=cf6c48646d9f933cdea28c13081f5d60ca22dce8;hpb=475281c01bd655c49f086d62d0cb4055a8f8d74b;p=openvswitch

diff --git a/lib/ovsdb-idl-provider.h b/lib/ovsdb-idl-provider.h
index cf6c4864..040a6999 100644
--- a/lib/ovsdb-idl-provider.h
+++ b/lib/ovsdb-idl-provider.h
@@ -1,4 +1,4 @@
-/* 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.
@@ -41,6 +41,8 @@ struct ovsdb_idl_row {
 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 {
@@ -48,18 +50,40 @@ 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;
 };
@@ -69,19 +93,9 @@ struct ovsdb_idl_row *ovsdb_idl_get_row_arc(
     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 *);
-
-struct ovsdb_idl_row *ovsdb_idl_next_row(const struct ovsdb_idl_row *);
-
-void ovsdb_idl_txn_write(struct ovsdb_idl_row *,
-                         const struct ovsdb_idl_column *,
-                         struct ovsdb_datum *);
 void ovsdb_idl_txn_verify(const struct ovsdb_idl_row *,
                           const struct ovsdb_idl_column *);
-void ovsdb_idl_txn_delete(struct ovsdb_idl_row *);
-struct ovsdb_idl_row *ovsdb_idl_txn_insert(
-    struct ovsdb_idl_txn *,
-    const struct ovsdb_idl_table_class *);
+
+struct ovsdb_idl_txn *ovsdb_idl_txn_get(const struct ovsdb_idl_row *);
 
 #endif /* ovsdb-idl-provider.h */