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fix: resp inline parsing correctly resets itself (#4458)

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With empty inline string, the parser failed to continue parsing correctly the non-inline input.
Signed-off-by: Roman Gershman <roman@dragonflydb.io>
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Roman Gershman 2025-01-15 08:45:22 +02:00 • committed by GitHub
parent f6441df57a
commit e89c15bc6a
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2 changed files with 13 additions and 2 deletions
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8
src/facade/redis_parser.cc
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@ -232,8 +232,12 @@ auto RedisParser::ParseInline(Buffer str) -> ResultConsumed {
}
uint32_t last_consumed = ptr - str.data();
if (ptr == end) { // we have not finished parsing.
is_broken_token_ = ptr[-1] > 32; // we stopped in the middle of the token.
if (ptr == end) { // we have not finished parsing.
if (cached_expr_->empty()) {
state_ = CMD_COMPLETE_S; // have not found anything besides whitespace.
} else {
is_broken_token_ = ptr[-1] > 32; // we stopped in the middle of the token.
}
return {INPUT_PENDING, last_consumed};
}

7
src/facade/redis_parser_test.cc
View file

@ -281,4 +281,11 @@ TEST_F(RedisParserTest, InlineSplit) {
ASSERT_EQ(RedisParser::OK, Parse("ING\n"));
}
TEST_F(RedisParserTest, InlineReset) {
ASSERT_EQ(RedisParser::INPUT_PENDING, Parse("\t \r\n"));
EXPECT_EQ(4, consumed_);
ASSERT_EQ(RedisParser::OK, Parse("*1\r\n$3\r\nfoo\r\n"));
EXPECT_EQ(13, consumed_);
}
} // namespace facade