Merge pull request #707 from redboltz/ts_c

Added timestamp minimal support for C.

Author: redboltz

Files.cmake

@@ -142,6 +142,7 @@ LIST (APPEND msgpackc_HEADERS
     include/msgpack/predef/version_number.h
     include/msgpack/sbuffer.h
     include/msgpack/sysdep.h
+    include/msgpack/timestamp.h
     include/msgpack/unpack.h
     include/msgpack/unpack_define.h
     include/msgpack/unpack_template.h

include/msgpack/pack.h

@@ -12,6 +12,7 @@
 
 #include "pack_define.h"
 #include "object.h"
+#include "timestamp.h"
 #include <stdlib.h>
 
 #ifdef __cplusplus
@@ -98,6 +99,8 @@ static int msgpack_pack_bin_body(msgpack_packer* pk, const void* b, size_t l);
 static int msgpack_pack_ext(msgpack_packer* pk, size_t l, int8_t type);
 static int msgpack_pack_ext_body(msgpack_packer* pk, const void* b, size_t l);
 
+static int msgpack_pack_timestamp(msgpack_packer* pk, const msgpack_timestamp* d);
+
 MSGPACK_DLLEXPORT
 int msgpack_pack_object(msgpack_packer* pk, msgpack_object d);
 

include/msgpack/pack_template.h

@@ -890,6 +890,34 @@ msgpack_pack_inline_func(_ext_body)(msgpack_pack_user x, const void* b, size_t l
     msgpack_pack_append_buffer(x, (const unsigned char*)b, l);
 }
 
+msgpack_pack_inline_func(_timestamp)(msgpack_pack_user x, const msgpack_timestamp* d)
+{
+    if ((((int64_t)d->tv_sec) >> 34) == 0) {
+        uint64_t data64 = ((uint64_t) d->tv_nsec << 34) | d->tv_sec;
+        if ((data64 & 0xffffffff00000000L) == 0)   {
+            // timestamp 32
+            char buf[4];
+            uint32_t data32 = (uint32_t)data64;
+            msgpack_pack_ext(x, 4, -1);
+            _msgpack_store32(buf, data32);
+            msgpack_pack_append_buffer(x, buf, 4);
+        } else {
+            // timestamp 64
+            char buf[8];
+            msgpack_pack_ext(x, 8, -1);
+            _msgpack_store64(buf, data64);
+            msgpack_pack_append_buffer(x, buf, 8);
+        }
+    } else  {
+        // timestamp 96
+        char buf[12];
+        _msgpack_store32(&buf[0], d->tv_nsec);
+        _msgpack_store64(&buf[4], d->tv_sec);
+        msgpack_pack_ext(x, 12, -1);
+        msgpack_pack_append_buffer(x, buf, 12);
+    }
+}
+
 #undef msgpack_pack_inline_func
 #undef msgpack_pack_user
 #undef msgpack_pack_append_buffer

include/msgpack/timestamp.h

@@ -0,0 +1,54 @@
+/*
+ * 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 <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;
+        _msgpack_load32(uint32_t, obj->via.ext.ptr, &ts->tv_sec);
+        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 & 0x00000003ffffffffL;
+        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 */

test/msgpack_c.cpp

@@ -627,6 +627,105 @@ TEST(MSGPACKC, simple_buffer_fixext_4byte_65536)
     msgpack_sbuffer_destroy(&sbuf);
 }
 
+TEST(MSGPACKC, simple_buffer_timestamp_32)
+{
+    msgpack_timestamp ts = {
+        0xffffffff,
+        0
+    };
+
+    msgpack_sbuffer sbuf;
+    msgpack_sbuffer_init(&sbuf);
+    msgpack_packer pk;
+    msgpack_packer_init(&pk, &sbuf, msgpack_sbuffer_write);
+
+    msgpack_pack_timestamp(&pk, &ts);
+    msgpack_zone z;
+    msgpack_zone_init(&z, 2048);
+    msgpack_object obj;
+    msgpack_unpack_return ret =
+        msgpack_unpack(sbuf.data, sbuf.size, NULL, &z, &obj);
+    EXPECT_EQ(MSGPACK_UNPACK_SUCCESS, ret);
+    EXPECT_EQ(MSGPACK_OBJECT_EXT, obj.type);
+    EXPECT_EQ(4u, obj.via.ext.size);
+    EXPECT_EQ(-1, obj.via.ext.type);
+    msgpack_timestamp ts2;
+    bool r = msgpack_object_to_timestamp(&obj, &ts2);
+
+    EXPECT_TRUE(r);
+    EXPECT_EQ(ts.tv_sec, ts2.tv_sec);
+    EXPECT_EQ(ts.tv_nsec, ts2.tv_nsec);
+
+    msgpack_zone_destroy(&z);
+    msgpack_sbuffer_destroy(&sbuf);
+}
+
+TEST(MSGPACKC, simple_buffer_timestamp_64)
+{
+    msgpack_timestamp ts = {
+        0x3ffffffffL,
+        999999999
+    };
+
+    msgpack_sbuffer sbuf;
+    msgpack_sbuffer_init(&sbuf);
+    msgpack_packer pk;
+    msgpack_packer_init(&pk, &sbuf, msgpack_sbuffer_write);
+
+    msgpack_pack_timestamp(&pk, &ts);
+    msgpack_zone z;
+    msgpack_zone_init(&z, 2048);
+    msgpack_object obj;
+    msgpack_unpack_return ret =
+        msgpack_unpack(sbuf.data, sbuf.size, NULL, &z, &obj);
+    EXPECT_EQ(MSGPACK_UNPACK_SUCCESS, ret);
+    EXPECT_EQ(MSGPACK_OBJECT_EXT, obj.type);
+    EXPECT_EQ(8u, obj.via.ext.size);
+    EXPECT_EQ(-1, obj.via.ext.type);
+    msgpack_timestamp ts2;
+    bool r = msgpack_object_to_timestamp(&obj, &ts2);
+
+    EXPECT_TRUE(r);
+    EXPECT_EQ(ts.tv_sec, ts2.tv_sec);
+    EXPECT_EQ(ts.tv_nsec, ts2.tv_nsec);
+
+    msgpack_zone_destroy(&z);
+    msgpack_sbuffer_destroy(&sbuf);
+}
+
+TEST(MSGPACKC, simple_buffer_timestamp_96)
+{
+    msgpack_timestamp ts = {
+        0x7fffffffffffffffLL,
+        999999999
+    };
+
+    msgpack_sbuffer sbuf;
+    msgpack_sbuffer_init(&sbuf);
+    msgpack_packer pk;
+    msgpack_packer_init(&pk, &sbuf, msgpack_sbuffer_write);
+
+    msgpack_pack_timestamp(&pk, &ts);
+    msgpack_zone z;
+    msgpack_zone_init(&z, 2048);
+    msgpack_object obj;
+    msgpack_unpack_return ret =
+        msgpack_unpack(sbuf.data, sbuf.size, NULL, &z, &obj);
+    EXPECT_EQ(MSGPACK_UNPACK_SUCCESS, ret);
+    EXPECT_EQ(MSGPACK_OBJECT_EXT, obj.type);
+    EXPECT_EQ(12u, obj.via.ext.size);
+    EXPECT_EQ(-1, obj.via.ext.type);
+    msgpack_timestamp ts2;
+    bool r = msgpack_object_to_timestamp(&obj, &ts2);
+
+    EXPECT_TRUE(r);
+    EXPECT_EQ(ts.tv_sec, ts2.tv_sec);
+    EXPECT_EQ(ts.tv_nsec, ts2.tv_nsec);
+
+    msgpack_zone_destroy(&z);
+    msgpack_sbuffer_destroy(&sbuf);
+}
+
 TEST(MSGPACKC, simple_buffer_array)
 {
     unsigned int array_size = 5;