sessiond: Add msgpack-c 3.3.0 to the tree

[lttng-tools.git] / src / vendor / msgpack / timestamp.h

diff --git a/src/vendor/msgpack/timestamp.h b/src/vendor/msgpack/timestamp.h
new file mode 100644 (file)
index 0000000..df94253
--- /dev/null
+++ b/src/vendor/msgpack/timestamp.h
@@ -0,0 +1,58 @@
+/*
+ * MessagePack for C TimeStamp
+ *
+ * Copyright (C) 2018 KONDO Takatoshi
+ *
+ *    Distributed under the Boost Software License, Version 1.0.
+ *    (See accompanying file LICENSE_1_0.txt or copy at
+ *    http://www.boost.org/LICENSE_1_0.txt)
+ */
+#ifndef MSGPACK_TIMESTAMP_H
+#define MSGPACK_TIMESTAMP_H
+
+#include <vendor/msgpack/object.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+
+typedef struct msgpack_timestamp {
+    int64_t tv_sec;
+    uint32_t tv_nsec;
+} msgpack_timestamp;
+
+static inline bool msgpack_object_to_timestamp(const msgpack_object* obj, msgpack_timestamp* ts) {
+    if (obj->type != MSGPACK_OBJECT_EXT) return false;
+    if (obj->via.ext.type != -1) return false;
+    switch (obj->via.ext.size) {
+    case 4:
+        ts->tv_nsec = 0;
+        {
+            uint32_t v;
+            _msgpack_load32(uint32_t, obj->via.ext.ptr, &v);
+            ts->tv_sec = v;
+        }
+        return true;
+    case 8: {
+        uint64_t value;
+        _msgpack_load64(uint64_t, obj->via.ext.ptr, &value);
+        ts->tv_nsec = (uint32_t)(value >> 34);
+        ts->tv_sec = value & 0x00000003ffffffffLL;
+        return true;
+    }
+    case 12:
+        _msgpack_load32(uint32_t, obj->via.ext.ptr, &ts->tv_nsec);
+        _msgpack_load64(int64_t, obj->via.ext.ptr + 4, &ts->tv_sec);
+        return true;
+    default:
+        return false;
+    }
+}
+
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* msgpack/timestamp.h */