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Custom variant type for packetheader

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Summary:
Make a custom variant type for PacketHeader. By not relying on boost::variant
this reduces the code size of the implementation.

This uses a combination of a union type as well as a enum type to emulate a variant

Reviewed By: yangchi

Differential Revision: D17187589

fbshipit-source-id: 00c2b9b8dd3f3e73af766d84888b13b9d867165a
This commit is contained in:
Subodh Iyengar
2019-09-19 17:30:13 -07:00
committed by Facebook Github Bot
parent c8da36d755
commit 04baa15a04
39 changed files with 593 additions and 641 deletions
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17
quic/codec/test/QuicHeaderCodecTest.cpp
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@@ -56,17 +56,12 @@ TEST_F(QuicHeaderCodecTest, ShortHeaderTest) {
auto packet = std::move(builder).buildPacket();
auto result = parseHeader(*packet.header);
auto& header = result->parsedHeader;
EXPECT_EQ(
getTestConnectionId(),
folly::variant_match(
header.value(),
[](const LongHeader& longHeader) {
return longHeader.getDestinationConnId();
},
[](const ShortHeader& shortHeader) {
return shortHeader.getConnectionId();
}));
LongHeader* longHeader = header->asLong();
if (longHeader) {
EXPECT_EQ(getTestConnectionId(), longHeader->getDestinationConnId());
} else {
EXPECT_EQ(getTestConnectionId(), header->asShort()->getConnectionId());
}
}
} // namespace test
} // namespace quic