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authorDan Goodliffe <dan@randomdan.homeip.net>2021-08-27 20:12:35 +0100
committerDan Goodliffe <dan@randomdan.homeip.net>2021-08-27 20:12:35 +0100
commit998251f23d4ab5143cfc20e763c3d8e1b6188ec0 (patch)
tree7c2e793a6b9e9fb1c7a6ee2c7232c73e60533d09 /lib
parentExtract and test time2From24bit (diff)
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Extract datetime2From40bit
Diffstat (limited to 'lib')
-rw-r--r--lib/mysql_types.cpp23
-rw-r--r--lib/mysql_types.h1
2 files changed, 12 insertions, 12 deletions
diff --git a/lib/mysql_types.cpp b/lib/mysql_types.cpp
index 40614ef..ae1ee62 100644
--- a/lib/mysql_types.cpp
+++ b/lib/mysql_types.cpp
@@ -215,20 +215,19 @@ namespace MyGrate::MySQL {
Type<MYSQL_TYPE_DATETIME2>::read(RawDataReader & md, RawDataReader & data)
{
md.discard(1);
- union {
- uint64_t i;
- std::array<uint8_t, 5> b;
- } r {};
- r.b = data.readValue<decltype(r.b)>();
- std::reverse(r.b.begin(), r.b.end());
+ return datetime2From40bit(ntoh(data.readValue<uint64_t>(5)));
+ }
+ DateTime
+ datetime2From40bit(uint64_t dtint)
+ {
DateTime dt;
- dt.year = boost::numeric_cast<decltype(dt.year)>(bitslice<17>(r.i, 22) / 13);
- dt.month = boost::numeric_cast<decltype(dt.month)>(bitslice<17>(r.i, 22) % 13);
- dt.day = bitslice<5>(r.i, 17);
- dt.hour = bitslice<5>(r.i, 12);
- dt.minute = bitslice<6>(r.i, 6);
- dt.second = bitslice<6>(r.i, 0);
+ dt.year = boost::numeric_cast<decltype(dt.year)>(bitslice<17>(dtint, 46) / 13);
+ dt.month = boost::numeric_cast<decltype(dt.month)>(bitslice<17>(dtint, 46) % 13);
+ dt.day = bitslice<5>(dtint, 41);
+ dt.hour = bitslice<5>(dtint, 36);
+ dt.minute = bitslice<6>(dtint, 30);
+ dt.second = bitslice<6>(dtint, 24);
return dt;
}
}
diff --git a/lib/mysql_types.h b/lib/mysql_types.h
index d49cd2f..737cff7 100644
--- a/lib/mysql_types.h
+++ b/lib/mysql_types.h
@@ -85,6 +85,7 @@ namespace MyGrate {
#undef DEFINE_TYPE
Time time2From24bit(uint32_t tint);
+ DateTime datetime2From40bit(uint64_t dtint);
struct ReplicationPosition {
#ifndef __cpp_aggregate_paren_init