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Added hash function to utils so it can be reused

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This commit is contained in:
Jesse van den Kieboom 2008-10-02 21:47:00 +02:00
parent 4d6a67b23b
commit 1b911a24f8
3 changed files with 16 additions and 15 deletions
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16
gitg/gitg-repository.c
View file

@ -376,20 +376,6 @@ gitg_repository_class_init(GitgRepositoryClass *klass)
g_type_class_add_private(object_class, sizeof(GitgRepositoryPrivate));
}
static guint
hash_hash(gconstpointer v)
{
/* 31 bit hash function, copied from g_str_hash */
const signed char *p = v;
guint32 h = *p;
int i;
for (i = 1; i < 20; ++i)
h = (h << 5) - h + p[i];
return h;
}
static void
on_loader_update(GitgRunner *object, gchar **buffer, GitgRepository *self)
{
@ -433,7 +419,7 @@ static void
gitg_repository_init(GitgRepository *object)
{
object->priv = GITG_REPOSITORY_GET_PRIVATE(object);
object->priv->hashtable = g_hash_table_new_full(hash_hash, gitg_utils_hash_equal, NULL, NULL);
object->priv->hashtable = g_hash_table_new_full(gitg_utils_hash_hash, gitg_utils_hash_equal, NULL, NULL);
object->priv->column_types[0] = GITG_TYPE_REVISION;
object->priv->column_types[1] = G_TYPE_STRING;

14
gitg/gitg-utils.c
View file

@ -207,6 +207,20 @@ gitg_utils_convert_utf8(gchar const *str)
return convert_fallback(str, "?");
}
guint
gitg_utils_hash_hash(gconstpointer v)
{
/* 31 bit hash function, copied from g_str_hash */
const signed char *p = v;
guint32 h = *p;
int i;
for (i = 1; i < 20; ++i)
h = (h << 5) - h + p[i];
return h;
}
gboolean
gitg_utils_hash_equal(gconstpointer a, gconstpointer b)
{

1
gitg/gitg-utils.h
View file

@ -19,6 +19,7 @@ gchar const *todir, gchar * const *paths);
gchar *gitg_utils_convert_utf8(gchar const *str);
guint gitg_utils_hash_hash(gconstpointer v);
gboolean gitg_utils_hash_equal(gconstpointer a, gconstpointer b);
gint gitg_utils_null_length(gconstpointer *ptr);