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shared: add nm_utils_mem_all_zero()

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Thomas Haller
2018-09-06 14:17:22 +02:00
parent 085a369446
commit 0feeeaac63
1 changed files with 16 additions and 0 deletions
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16
shared/nm-utils/nm-shared-utils.h
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@@ -190,6 +190,22 @@ nm_ip_addr_set (int addr_family, gpointer dst, const NMIPAddr *src)
/*****************************************************************************/ /*****************************************************************************/
static inline gboolean
nm_utils_mem_all_zero (gconstpointer mem, gsize len)
{
const guint8 *p;
for (p = mem; len-- > 0; p++) {
if (*p != 0)
return FALSE;
}
/* incidentally, a buffer with len==0, is also *all-zero*. */
return TRUE;
}
/*****************************************************************************/
/* like g_memdup(). The difference is that the @size argument is of type /* like g_memdup(). The difference is that the @size argument is of type
* gsize, while g_memdup() has type guint. Since, the size of container types * gsize, while g_memdup() has type guint. Since, the size of container types
* like GArray is guint as well, this means trying to g_memdup() an * like GArray is guint as well, this means trying to g_memdup() an