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param: Avoid strchrs

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Using prefixed property names like GtkWidget::visible
is very deprectated and basically never done. So avoid
paying the strchr cost before doing the first lookup.
This commit is contained in:
Matthias Clasen 2022-05-19 19:17:55 -04:00
parent 91dafa85fc
commit 51215bf7b8
1 changed files with 35 additions and 31 deletions
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18
gobject/gparam.c
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@ -1094,26 +1094,28 @@ g_param_spec_pool_lookup (GParamSpecPool *pool,
gboolean walk_ancestors)
{
GParamSpec *pspec;
gchar *delim;
g_return_val_if_fail (pool != NULL, NULL);
g_return_val_if_fail (param_name != NULL, NULL);
g_mutex_lock (&pool->mutex);
delim = pool->type_prefixing ? strchr (param_name, ':') : NULL;
/* try quick and away, i.e. without prefix */
if (!delim)
{
pspec = param_spec_ht_lookup (pool->hash_table, param_name, owner_type, walk_ancestors);
if (pspec)
{
g_mutex_unlock (&pool->mutex);
return pspec;
}
if (pool->type_prefixing)
{
char *delim;
delim = strchr (param_name, ':');
/* strip type prefix */
if (pool->type_prefixing && delim[1] == ':')
if (delim && delim[1] == ':')
{
guint l = delim - param_name;
gchar stack_buffer[32], *buffer = l < 32 ? stack_buffer : g_new (gchar, l + 1);
@ -1141,6 +1143,8 @@ g_param_spec_pool_lookup (GParamSpecPool *pool,
return pspec;
}
}
}
/* malformed param_name */
g_mutex_unlock (&pool->mutex);