Jacek Caban : wininet: Never do blocking reads in chunked_read if zero chunk size is aready read.
Alexandre Julliard
julliard at winehq.org
Thu Aug 17 18:55:08 CDT 2017
Module: wine
Branch: master
Commit: 59395d8845931c76dce482fc0c59158138865c1f
URL: http://source.winehq.org/git/wine.git/?a=commit;h=59395d8845931c76dce482fc0c59158138865c1f
Author: Jacek Caban <jacek at codeweavers.com>
Date: Thu Aug 17 19:09:52 2017 +0200
wininet: Never do blocking reads in chunked_read if zero chunk size is aready read.
Signed-off-by: Jacek Caban <jacek at codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard at winehq.org>
---
dlls/wininet/http.c | 14 ++++++++++----
1 file changed, 10 insertions(+), 4 deletions(-)
diff --git a/dlls/wininet/http.c b/dlls/wininet/http.c
index c5ada87..d6fdedd 100644
--- a/dlls/wininet/http.c
+++ b/dlls/wininet/http.c
@@ -2706,17 +2706,23 @@ static DWORD chunked_read(data_stream_t *stream, http_request_t *req, BYTE *buf,
/* Ensure that we have data in the buffer for states that need it. */
if(!chunked_stream->buf_size) {
+ BOOL blocking_read = allow_blocking;
+
switch(chunked_stream->state) {
- case CHUNKED_STREAM_STATE_READING_CHUNK_SIZE:
+ case CHUNKED_STREAM_STATE_DISCARD_EOL_AT_END:
case CHUNKED_STREAM_STATE_DISCARD_EOL_AFTER_SIZE:
+ /* never allow blocking after 0 chunk size */
+ if(!chunked_stream->chunk_size)
+ blocking_read = FALSE;
+ /* fall through */
+ case CHUNKED_STREAM_STATE_READING_CHUNK_SIZE:
case CHUNKED_STREAM_STATE_DISCARD_EOL_AFTER_DATA:
- case CHUNKED_STREAM_STATE_DISCARD_EOL_AT_END:
chunked_stream->buf_pos = 0;
- res = NETCON_recv(req->netconn, chunked_stream->buf, sizeof(chunked_stream->buf), allow_blocking, &read_bytes);
+ res = NETCON_recv(req->netconn, chunked_stream->buf, sizeof(chunked_stream->buf), blocking_read, &read_bytes);
if(res == ERROR_SUCCESS && read_bytes) {
chunked_stream->buf_size += read_bytes;
}else if(res == WSAEWOULDBLOCK) {
- if(ret_read)
+ if(ret_read || allow_blocking)
res = ERROR_SUCCESS;
continue_read = FALSE;
continue;
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