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If buffer is empty, read more data before calling parser.

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This commit is contained in:
Robert G. Jakabosky 2018-09-01 02:25:05 +08:00
parent a42a8a2321
commit 66881d7dd1
1 changed files with 17 additions and 16 deletions
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33
src/client/parser.rs
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@ -39,6 +39,23 @@ impl HttpResponseParser {
T: IoStream,
{
loop {
// Don't call parser until we have data to parse.
if !buf.is_empty() {
match HttpResponseParser::parse_message(buf)
.map_err(HttpResponseParserError::Error)?
{
Async::Ready((msg, decoder)) => {
self.decoder = decoder;
return Ok(Async::Ready(msg));
}
Async::NotReady => {
if buf.capacity() >= MAX_BUFFER_SIZE {
return Err(HttpResponseParserError::Error(ParseError::TooLarge));
}
// Parser needs more data.
}
}
}
// Read some more data into the buffer for the parser.
match io.read_available(buf) {
Ok(Async::Ready((false, true))) => {
@ -50,22 +67,6 @@ impl HttpResponseParser {
return Err(HttpResponseParserError::Error(err.into()))
}
}
// Call HTTP response parser.
match HttpResponseParser::parse_message(buf)
.map_err(HttpResponseParserError::Error)?
{
Async::Ready((msg, decoder)) => {
self.decoder = decoder;
return Ok(Async::Ready(msg));
}
Async::NotReady => {
if buf.capacity() >= MAX_BUFFER_SIZE {
return Err(HttpResponseParserError::Error(ParseError::TooLarge));
}
// Parser needs more data. Loop and read more data.
}
}
}
}