> On Aug 12, 2015, at 9:49 PM, Alex Wang <al...@nicira.com> wrote:
>
> diff --git a/lib/db-ctl-base.c b/lib/db-ctl-base.c
> index 3028c09..cbafff1 100644
> --- a/lib/db-ctl-base.c
> +++ b/lib/db-ctl-base.c
> @@ -1620,6 +1620,12 @@ pre_cmd_show(struct ctl_context *ctx)
> ovsdb_idl_add_column(ctx->idl, column);
> }
> }
> + if (show->wref_table.name_column) {
> + ovsdb_idl_add_column(ctx->idl, show->wref_table.name_column);
> + }
> + if (show->wref_table.wref_column) {
> + ovsdb_idl_add_column(ctx->idl, show->wref_table.wref_column);
> + }
Do you need to do a ovsdb_idl_add_table() on 'wref_table.table'?
> +/* Prints table entries that weak reference the 'cur_row'. */
> +static void
> +cmd_show_weak_ref(struct ctl_context *ctx, const struct cmd_show_table *show,
> + const struct ovsdb_idl_row *cur_row, int level)
> +{
> + const struct ovsdb_idl_row *row_wref;
> + const struct ovsdb_idl_table_class *table = show->wref_table.table;
> + const struct ovsdb_idl_column *name_column
> + = show->wref_table.name_column;
> + const struct ovsdb_idl_column *wref_column
> + = show->wref_table.wref_column;
> +
> + if (!table || !name_column || !wref_column) {
> + return;
> + }
> +
> + ds_put_char_multiple(&ctx->output, ' ', (level + 1) * 4);
> + ds_put_format(&ctx->output, "%s", table->name);
> + ds_put_char(&ctx->output, '\n');
> +
> + for (row_wref = ovsdb_idl_first_row(ctx->idl, table); row_wref;
> + row_wref = ovsdb_idl_next_row(row_wref)) {
> + const struct ovsdb_datum *wref_datum
> + = ovsdb_idl_read(row_wref, wref_column);
> + /* If weak reference refers to the 'cur_row', prints it. */
> + if (wref_datum->n
> + && uuid_equals(&cur_row->uuid, &wref_datum->keys[0].uuid)) {
> + const struct ovsdb_datum *name_datum
> + = ovsdb_idl_read(row_wref, name_column);
> +
> + ds_put_char_multiple(&ctx->output, ' ', (level + 2) * 4);
> + ds_put_format(&ctx->output, "%s: ", name_column->name);
> + ovsdb_datum_to_string(name_datum, &name_column->type,
> &ctx->output);
> + ds_put_char(&ctx->output, '\n');
> + }
> + }
> +}
I think this causes the "ovn-controller-vtep" test case to fail due to the text
printing before the "for" loop; that gets printed regardless of whether there
are any matches or not. I originally wrote a patch to just not print that
preamble if there were no matches. However, I think the attached patch might
be more consistent with commands like "ovs-vsctl show" which print the root
name for a row on the same line as the table name. It also passes the unit
tests.
For example, here's the output of the original patch:
-=-=-=-=-=-=-=-=-=-=-
Chassis "56b18105-5706-46ef-80c4-ff20979ab068"
Encap geneve
ip: "127.0.0.1"
Port_Binding
logical_port: "sw0-port0"
logical_port: "sw0-port1"
-=-=-=-=-=-=-=-=-=-=-
Here it is with the attached patch:
-=-=-=-=-=-=-=-=-=-=-
Chassis "56b18105-5706-46ef-80c4-ff20979ab068"
Encap geneve
ip: "127.0.0.1"
Port_Binding "sw0-port0"
Port_Binding "sw0-port1"
-=-=-=-=-=-=-=-=-=-=-
Does that seem reasonable? If we later want to add other columns from
Port_Binding, they can then be placed under each entry.
> @@ -157,11 +168,16 @@ struct ctl_command *ctl_parse_commands(int argc, char
> *argv[],
> *
> * - 'columns[]' allows user to specify the print of additional columns
> * in 'table'.
> + *
> + * - if 'wref_table' is filled, print the 'wref_table.table' rows that refer
> + * to the 'table'.
What do you think of this phrasing instead? I think it's a bit more
descriptive.
* - if 'wref_table' is populated, print 'wref_table.name_column' for
* each row in table 'wref_table.table' that has a reference to 'table'
* in 'wref_table.wref_column'. Every field must be populated.
Thanks a lot for doing this on short notice!
Acked-by: Justin Pettit <jpet...@nicira.com>
--Justin
-=-=-=-=-=-=-=-=-=-=-=-=-
diff --git a/lib/db-ctl-base.c b/lib/db-ctl-base.c
index cbafff1..142428e 100644
--- a/lib/db-ctl-base.c
+++ b/lib/db-ctl-base.c
@@ -1671,10 +1671,6 @@ cmd_show_weak_ref(struct ctl_context *ctx, const struct c
return;
}
- ds_put_char_multiple(&ctx->output, ' ', (level + 1) * 4);
- ds_put_format(&ctx->output, "%s", table->name);
- ds_put_char(&ctx->output, '\n');
-
for (row_wref = ovsdb_idl_first_row(ctx->idl, table); row_wref;
row_wref = ovsdb_idl_next_row(row_wref)) {
const struct ovsdb_datum *wref_datum
@@ -1685,8 +1681,8 @@ cmd_show_weak_ref(struct ctl_context *ctx, const struct cm
const struct ovsdb_datum *name_datum
= ovsdb_idl_read(row_wref, name_column);
- ds_put_char_multiple(&ctx->output, ' ', (level + 2) * 4);
- ds_put_format(&ctx->output, "%s: ", name_column->name);
+ ds_put_char_multiple(&ctx->output, ' ', (level + 1) * 4);
+ ds_put_format(&ctx->output, "%s ", table->name);
ovsdb_datum_to_string(name_datum, &name_column->type, &ctx->output)
ds_put_char(&ctx->output, '\n');
}
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