[PATCH v2 6/9] cli: change the data structure for notmuch address deduplication
David Bremner
david at tethera.net
Thu Sep 24 05:32:13 PDT 2015
Jani Nikula <jani at nikula.org> writes:
> + else
> + v = !!m1->name - !!m2->name;
Is this really idiomatic? It seems a little difficult to follow to me.
> /* Returns TRUE iff name and addr is duplicate. If not, stores the
> * name/addr pair in order to detect subsequent duplicates. */
> static notmuch_bool_t
> is_duplicate (const search_context_t *ctx, const char *name, const char *addr)
> {
> char *key;
> + GList *list, *l;
> mailbox_t *mailbox;
>
> - key = talloc_asprintf (ctx->format, "%s <%s>", name, addr);
> - if (! key)
> - return FALSE;
> + list = g_hash_table_lookup (ctx->addresses, addr);
> + if (list) {
> + mailbox_t find = {
> + .name = name,
> + .addr = addr,
> + };
> +
> + l = g_list_find_custom (list, &find, mailbox_compare);
> + if (l) {
> + mailbox = l->data;
> + mailbox->count++;
> + return TRUE;
> + }
>
> - mailbox = g_hash_table_lookup (ctx->addresses, key);
> - if (mailbox) {
> - mailbox->count++;
> - talloc_free (key);
> - return TRUE;
> + mailbox = new_mailbox (ctx->format, name, addr);
> + if (! mailbox)
> + return FALSE;
> +
> + /*
> + * XXX: It would be more efficient to prepend to the list, but
> + * then we'd have to store the changed list head back to the
> + * hash table. This check is here just to avoid the compiler
> + * warning for unused result.
> + */
> + if (list != g_list_append (list, mailbox))
> + INTERNAL_ERROR ("appending to list changed list head\n");
> +
> + return FALSE;
> }
>
> + key = talloc_strdup (ctx->format, addr);
> + if (! key)
> + return FALSE;
> +
> mailbox = new_mailbox (ctx->format, name, addr);
> if (! mailbox)
> return FALSE;
>
> - g_hash_table_insert (ctx->addresses, key, mailbox);
> + list = g_list_append (NULL, mailbox);
> + if (! list)
> + return FALSE;
> +
> + g_hash_table_insert (ctx->addresses, key, list);
>
> return FALSE;
> }
> @@ -401,12 +445,21 @@ _talloc_free_for_g_hash (void *ptr)
> }
>
> static void
> -print_hash_value (unused (gpointer key), gpointer value, gpointer user_data)
> +_list_free_for_g_hash (void *ptr)
> +{
> + g_list_free_full (ptr, _talloc_free_for_g_hash);
> +}
> +
> +static void
> +print_list_value (void *mailbox, void *context)
> {
> - const mailbox_t *mailbox = value;
> - search_context_t *ctx = user_data;
> + print_mailbox (context, mailbox);
> +}
>
> - print_mailbox (ctx, mailbox);
> +static void
> +print_hash_value (unused (void *key), void *list, void *context)
> +{
> + g_list_foreach (list, print_list_value, context);
> }
>
> static int
> @@ -792,8 +845,9 @@ notmuch_address_command (notmuch_config_t *config, int argc, char *argv[])
> argc - opt_index, argv + opt_index))
> return EXIT_FAILURE;
>
> - ctx->addresses = g_hash_table_new_full (g_str_hash, g_str_equal,
> - _talloc_free_for_g_hash, _talloc_free_for_g_hash);
> + ctx->addresses = g_hash_table_new_full (strcase_hash, strcase_equal,
> + _talloc_free_for_g_hash,
> + _list_free_for_g_hash);
>
> ret = do_search_messages (ctx);
>
> --
> 2.1.4
>
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