W dniu piątek, 2 czerwca 2017 15:33:24 UTC+2 użytkownik Przemysław Sobala napisał: > > I'm about to compile and try rr. Meanwhile I've run my code in the > production environment and caught some segmentation faults. I'd be pleased > if you take a look: > https://docs.google.com/document/d/1hOX9FLcx5N6gdLQ-aAMwNpPqCzpfXqDKjNaHqFGGbSY/edit?usp=sharing >
I've reviewed my design and revealed a potential flaw. As you can see in post #1 I've got 1 main thread with uv_loop running continuously and request accepting threads that call curl_multi_add_handle. It turns out that curl_multi_add_handle calls start_timeout callback function (see https://github.com/curl/curl/blob/master/docs/examples/multi-uv.c) that calls uv_timer_start and uv_timer_stop. This log confirms that: <thread id> I0605 11:46:54.860105 22880 FileDownloader.cpp:107] File downloading loop started I0605 11:47:03.028491 22883 FileDownloader.cpp:254] start timeout 0ms I0605 11:47:03.028506 22883 FileDownloader.cpp:265] /start timeout I0605 11:47:03.028512 22883 FileDownloader.cpp:103] Downloading http://i.wp.pl/a/f/jpeg/37211/sarah-cover-photo-1280x.jpeg?i=0 -> /tmp/ir.download I0605 11:47:03.029150 22880 FileDownloader.cpp:273] handle_socket (action: 2, socket: 0) I0605 11:47:03.029168 22880 FileDownloader.cpp:303] /handle_socket I0605 11:47:03.029171 22880 FileDownloader.cpp:254] start timeout 0ms I0605 11:47:03.029173 22880 FileDownloader.cpp:265] /start timeout I0605 11:47:03.030094 22880 FileDownloader.cpp:273] handle_socket (action: 1, socket: 0x7fc9d0002920) I0605 11:47:03.030102 22880 FileDownloader.cpp:303] /handle_socket I0605 11:47:03.030105 22880 FileDownloader.cpp:254] start timeout 199ms I0605 11:47:03.030107 22880 FileDownloader.cpp:265] /start timeout I0605 11:47:03.047816 22880 FileDownloader.cpp:273] handle_socket (action: 4, socket: 0x7fc9d0002920) I0605 11:47:03.047832 22880 FileDownloader.cpp:303] /handle_socket I0605 11:47:03.047835 22880 FileDownloader.cpp:192] Finished http://i.wp.pl/a/f/jpeg/37211/sarah-cover-photo-1280x.jpeg?i=0 (0 - No error, code: 200, time: 19.287 ms, speed: 250303 kb/s) I0605 11:47:03.047858 22880 FileDownloader.cpp:254] start timeout -1ms I0605 11:47:03.047863 22880 FileDownloader.cpp:265] /start timeout If I understand correctly these functions cannot be called simultaneously from other threads with running uv_loop in main thread. How can I fix that? Should I use uv_async_send() to call uv_timer_start() and uv_timer_stop()? -- Regards Przemysław Sobala -- You received this message because you are subscribed to the Google Groups "libuv" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at https://groups.google.com/group/libuv. For more options, visit https://groups.google.com/d/optout.
