X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=elogind.git;a=blobdiff_plain;f=src%2Fsystemd%2Fsd-id128.h;h=9f445278bbf6481399ca9c16d736893bd46c00f6;hp=fb82b6fa48a123803f42582ad416f9c1565d995e;hb=8b89c78c709c597c8838095ff33845ffa7b1f268;hpb=9bf3b53533cdc9b95c921b71da755401f223f765

diff --git a/src/systemd/sd-id128.h b/src/systemd/sd-id128.h
index fb82b6fa4..9f445278b 100644
--- a/src/systemd/sd-id128.h
+++ b/src/systemd/sd-id128.h
@@ -29,7 +29,7 @@
 
 _SD_BEGIN_DECLARATIONS;
 
-/* 128 Bit ID APIs. See sd-id128(3) for more information. */
+/* 128-bit ID APIs. See sd-id128(3) for more information. */
 
 typedef union sd_id128 sd_id128_t;
 
@@ -54,9 +54,13 @@ int sd_id128_get_boot(sd_id128_t *ret);
         ((const sd_id128_t) { .bytes = { 0x##v0, 0x##v1, 0x##v2, 0x##v3, 0x##v4, 0x##v5, 0x##v6, 0x##v7, \
                                    0x##v8, 0x##v9, 0x##v10, 0x##v11, 0x##v12, 0x##v13, 0x##v14, 0x##v15 }})
 
+#define SD_ID128_ARRAY(v0, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15) \
+        { .bytes = { 0x##v0, 0x##v1, 0x##v2, 0x##v3, 0x##v4, 0x##v5, 0x##v6, 0x##v7, \
+                     0x##v8, 0x##v9, 0x##v10, 0x##v11, 0x##v12, 0x##v13, 0x##v14, 0x##v15 }}
+
 /* Note that SD_ID128_FORMAT_VAL will evaluate the passed argument 16
  * times. It is hence not a good idea to call this macro with an
- * expensive function as paramater or an expression with side
+ * expensive function as parameter or an expression with side
  * effects */
 
 #define SD_ID128_FORMAT_STR "%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x"
@@ -102,6 +106,10 @@ _sd_pure_ static inline int sd_id128_equal(sd_id128_t a, sd_id128_t b) {
         return memcmp(&a, &b, 16) == 0;
 }
 
+_sd_pure_ static inline int sd_id128_is_null(sd_id128_t a) {
+        return a.qwords[0] == 0 && a.qwords[1] == 0;
+}
+
 #define SD_ID128_NULL ((const sd_id128_t) { .qwords = { 0, 0 }})
 
 _SD_END_DECLARATIONS;