ringbuffer, guid, iovec stuff, and mmio

2026-10-14 23:26:30 +02:00
parent 4c781f31ad
commit d7857f18cd
13 changed files with 701 additions and 12 deletions
@@ -0,0 +1,31 @@
+#include <zinnia/guid.h>
+#include <zinnia/print.h>
+#include <string.h>
+
+bool guid_is_zero(const struct guid* guid) {
+    static const struct guid zero = {};
+    return guid_equal(guid, &zero);
+}
+
+bool guid_equal(const struct guid* a, const struct guid* b) {
+    return memcmp(a, b, sizeof(struct guid)) == 0;
+}
+
+void guid_format(const struct guid* guid, char out[static GUID_STR_LEN]) {
+    ksnprintf(
+        out,
+        GUID_STR_LEN,
+        "%08x-%04x-%04x-%02x%02x-%02x%02x%02x%02x%02x%02x",
+        guid->time_low,
+        guid->time_mid,
+        guid->time_hi_version,
+        guid->clock_seq[0],
+        guid->clock_seq[1],
+        guid->node[0],
+        guid->node[1],
+        guid->node[2],
+        guid->node[3],
+        guid->node[4],
+        guid->node[5]
+    );
+}