src/vendor/msgpack/timestamp.h

   1 /*
   2  * MessagePack for C TimeStamp
   3  *
   4  * Copyright (C) 2018 KONDO Takatoshi
   5  *
   6  *    Distributed under the Boost Software License, Version 1.0.
   7  *    (See accompanying file LICENSE_1_0.txt or copy at
   8  *    http://www.boost.org/LICENSE_1_0.txt)
   9  */
  10 #ifndef MSGPACK_TIMESTAMP_H
  11 #define MSGPACK_TIMESTAMP_H
  12
  13 #include <vendor/msgpack/object.h>
  14
  15 #ifdef __cplusplus
  16 extern "C" {
  17 #endif
  18
  19
  20 typedef struct msgpack_timestamp {
  21     int64_t tv_sec;
  22     uint32_t tv_nsec;
  23 } msgpack_timestamp;
  24
  25 static inline bool msgpack_object_to_timestamp(const msgpack_object* obj, msgpack_timestamp* ts) {
  26     if (obj->type != MSGPACK_OBJECT_EXT) return false;
  27     if (obj->via.ext.type != -1) return false;
  28     switch (obj->via.ext.size) {
  29     case 4:
  30         ts->tv_nsec = 0;
  31         {
  32             uint32_t v;
  33             _msgpack_load32(uint32_t, obj->via.ext.ptr, &v);
  34             ts->tv_sec = v;
  35         }
  36         return true;
  37     case 8: {
  38         uint64_t value;
  39         _msgpack_load64(uint64_t, obj->via.ext.ptr, &value);
  40         ts->tv_nsec = (uint32_t)(value >> 34);
  41         ts->tv_sec = value & 0x00000003ffffffffLL;
  42         return true;
  43     }
  44     case 12:
  45         _msgpack_load32(uint32_t, obj->via.ext.ptr, &ts->tv_nsec);
  46         _msgpack_load64(int64_t, obj->via.ext.ptr + 4, &ts->tv_sec);
  47         return true;
  48     default:
  49         return false;
  50     }
  51 }
  52
  53
  54 #ifdef __cplusplus
  55 }
  56 #endif
  57
  58 #endif /* msgpack/timestamp.h */