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nmtst: add nmtst_rand_buf() util

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This commit is contained in:
Thomas Haller 2016-04-06 16:53:02 +02:00
parent fbfe2ef216
commit 0e78ce5ed6
1 changed files with 28 additions and 0 deletions
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28
shared/nm-test-utils.h
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@ -782,6 +782,34 @@ nmtst_get_rand_int (void)
return g_rand_int (nmtst_get_rand ());
}
inline static gpointer
nmtst_rand_buf (GRand *rand, gpointer buffer, gsize buffer_length)
{
guint32 v;
guint8 *b = buffer;
if (!buffer_length)
return buffer;
g_assert (buffer);
if (!rand)
rand = nmtst_get_rand ();
for (; buffer_length >= sizeof (guint32); buffer_length -= sizeof (guint32), b += sizeof (guint32)) {
v = g_rand_int (rand);
memcpy (b, &v, sizeof (guint32));
}
if (buffer_length > 0) {
v = g_rand_int (rand);
do {
*(b++) = v & 0xFF;
v >>= 8;
} while (--buffer_length > 0);
}
return buffer;
}
inline static void *
nmtst_rand_perm (GRand *rand, void *dst, const void *src, gsize elmt_size, gsize n_elmt)
{