fdo-mirrors/NetworkManager
1
0
Fork 0
mirror of https://gitlab.freedesktop.org/NetworkManager/NetworkManager.git synced 2026-02-04 14:10:36 +01:00
Code Issues Projects Releases Packages Wiki Activity Actions

shared: inline fast-path for hash _get_hash_key()

Browse source
This commit is contained in:
Thomas Haller 2017-11-16 11:40:19 +01:00
parent 6fbd280b35
commit 3751cceeec
1 changed files with 13 additions and 2 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

15
shared/nm-utils/nm-hash-utils.c
View file

@ -35,10 +35,11 @@
G_STATIC_ASSERT (sizeof (guint) * HASH_KEY_SIZE_GUINT >= HASH_KEY_SIZE);
static const guint8 *volatile global_seed = NULL;
static const guint8 *
_get_hash_key (void)
_get_hash_key_init (void)
{
static const guint8 *volatile global_seed = NULL;
/* the returned hash is aligned to guin64, hence, it is safe
* to use it as guint* or guint64* pointer. */
static union {
@ -80,6 +81,16 @@ _get_hash_key (void)
return g_arr.v8;
}
#define _get_hash_key() \
({ \
const guint8 *_g; \
\
_g = global_seed; \
if (G_UNLIKELY (_g == NULL)) \
_g = _get_hash_key_init (); \
_g; \
})
guint
nm_hash_static (guint static_seed)
{