[PATCH v2 6/9] cli: change the data structure for notmuch address deduplication
Jani Nikula
jani at nikula.org
Thu Sep 24 11:34:30 PDT 2015
On Thu, 24 Sep 2015, David Bremner <david at tethera.net> wrote:
> 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.
Probably depends on whether you're accustomed to using !! for
"normalizing" zero and non-zero to 0 and 1, respectively.
The alternative seemed a bit too verbose for my liking:
if (m1->name && m2->name)
v = strcmp (m1->name, m2->name);
else if (!m1->name && !m2->name)
v = 0;
else if (m1->name)
v = 1;
else
v = -1;
I can live with that if you think the verbosity is in order here. (Or am
I missing an obvious better alternative?)
BR,
Jani.
>
>> /* 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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