From 9c55143bbf4ce24bef093301e46aab15b4a71d69 Mon Sep 17 00:00:00 2001 From: Denys Vlasenko Date: Thu, 16 Aug 2012 16:52:27 +0200 Subject: [PATCH] wget: try reading after poll timeout - stdio may have buffered data. Closes 5426 function old new delta retrieve_file_data 436 451 +15 Signed-off-by: Denys Vlasenko --- networking/wget.c | 21 ++++++++++++++------- 1 file changed, 14 insertions(+), 7 deletions(-) diff --git a/networking/wget.c b/networking/wget.c index 6d8f8a5..3416636 100644 --- a/networking/wget.c +++ b/networking/wget.c @@ -448,6 +448,9 @@ static void NOINLINE retrieve_file_data(FILE *dfp) # endif struct pollfd polldata; +# if ENABLE_FEATURE_WGET_TIMEOUT + second_cnt = G.timeout_seconds; +# endif polldata.fd = fileno(dfp); polldata.events = POLLIN | POLLPRI; #endif @@ -483,12 +486,7 @@ static void NOINLINE retrieve_file_data(FILE *dfp) } #if ENABLE_FEATURE_WGET_STATUSBAR || ENABLE_FEATURE_WGET_TIMEOUT -# if ENABLE_FEATURE_WGET_TIMEOUT - second_cnt = G.timeout_seconds; -# endif - while (1) { - if (safe_poll(&polldata, 1, 1000) != 0) - break; /* error, EOF, or data is available */ + if (safe_poll(&polldata, 1, 1000) == 0) { # if ENABLE_FEATURE_WGET_TIMEOUT if (second_cnt != 0 && --second_cnt == 0) { progress_meter(PROGRESS_END); @@ -497,6 +495,13 @@ static void NOINLINE retrieve_file_data(FILE *dfp) # endif /* Needed for "stalled" indicator */ progress_meter(PROGRESS_BUMP); + /* + * We used to loop back to poll here, + * but in chunked case, we can be here after + * fgets and it could buffer some data in dfp... + * which poll knows nothing about! + * Therefore let's try fread'ing anyway. + */ } /* fread internally uses read loop, which in our case @@ -527,7 +532,9 @@ static void NOINLINE retrieve_file_data(FILE *dfp) } xwrite(G.output_fd, G.wget_buf, n); - +#if ENABLE_FEATURE_WGET_TIMEOUT + second_cnt = G.timeout_seconds; +#endif #if ENABLE_FEATURE_WGET_STATUSBAR G.transferred += n; progress_meter(PROGRESS_BUMP); -- 2.7.4