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shared: optimize nm_hash_str() for NULL to not use siphash24()

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This commit is contained in:
Thomas Haller 2017-11-15 15:14:19 +01:00
parent 3751cceeec
commit c3d98a3df6
2 changed files with 8 additions and 5 deletions
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4
libnm-core/tests/test-general.c
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@ -171,6 +171,10 @@ test_nm_hash (void)
g_assert (nm_hash_static (0));
g_assert (nm_hash_static (777));
g_assert (nm_hash_str (NULL));
g_assert (nm_hash_str (""));
g_assert (nm_hash_str ("a"));
_test_hash_str ("");
_test_hash_str ("a");
_test_hash_str ("aa");

9
shared/nm-utils/nm-hash-utils.c
View file

@ -127,11 +127,10 @@ nm_hash_str (const char *str)
{
NMHashState h;
if (str) {
nm_hash_init (&h, 1867854211u);
nm_hash_update_str (&h, str);
} else
nm_hash_init (&h, 842995561u);
if (!str)
return nm_hash_static (1867854211u);
nm_hash_init (&h, 1867854211u);
nm_hash_update_str (&h, str);
return nm_hash_complete (&h);
}