[{"id":3586,"web_url":"https://patchwork.libcamera.org/comment/3586/","msgid":"<32f4c42f-21c4-3817-8f38-0256ac42e4d8@ideasonboard.com>","date":"2020-01-23T10:19:23","subject":"Re: [libcamera-devel] [PATCH 2/2] test: threads: Add wait() timeout\n\ttest","submitter":{"id":4,"url":"https://patchwork.libcamera.org/api/people/4/","name":"Kieran Bingham","email":"kieran.bingham@ideasonboard.com"},"content":"Hi Laurent\n\nOn 23/01/2020 02:55, Laurent Pinchart wrote:\n> Add a test case to wait with a timeout, testing both a too short and a\n> long enough duration.\n> \n> Signed-off-by: Laurent Pinchart \n\nSome discussion below, but this is fine stand-alone anyway.\n\nReviewed-by: Kieran Bingham \n\n> ---\n> test/threads.cpp | 33 ++++++++++++++++++++++++++-------\n> 1 file changed, 26 insertions(+), 7 deletions(-)\n> \n> diff --git a/test/threads.cpp b/test/threads.cpp\n> index 9a2d39dfd106..fc4b07cc6428 100644\n> --- a/test/threads.cpp\n> +++ b/test/threads.cpp\n> @@ -15,24 +15,22 @@\n> using namespace std;\n> using namespace libcamera;\n> \n> -class InstrumentedThread : public Thread\n> +class DelayThread : public Thread\n> {\n> public:\n> -\tInstrumentedThread(unsigned int iterations)\n> -\t\t: iterations_(iterations)\n> +\tDelayThread(chrono::steady_clock::duration duration)\n> +\t\t: duration_(duration)\n> \t{\n> \t}\n> \n> protected:\n> \tvoid run()\n> \t{\n> -\t\tfor (unsigned int i = 0; i < iterations_; ++i) {\n> -\t\t\tthis_thread::sleep_for(chrono::milliseconds(50));\n> -\t\t}\n> +\t\tthis_thread::sleep_for(duration_);\n> \t}\n> \n> private:\n> -\tunsigned int iterations_;\n> +\tchrono::steady_clock::duration duration_;\n> };\n> \n> class ThreadTest : public Test\n> @@ -82,6 +80,27 @@ protected:\n> \n> \t\tdelete thread;\n> \n> +\t\t/* Test waiting for completion with a timeout. */\n> +\t\tthread = new DelayThread(chrono::milliseconds(500));\n> +\t\tthread->start();\n> +\t\tthread->exit(0);\n> +\n> +\t\tbool timeout = thread->wait(chrono::milliseconds(100));\n> +\n> +\t\tif (!timeout) {\n> +\t\t\tcout << \"Waiting for thread didn't time out\" << endl;\n> +\t\t\treturn TestFail;\n> +\t\t}\n> +\n> +\t\ttimeout = thread->wait(chrono::milliseconds(1000));\n> +\n> +\t\tif (timeout) {\n> +\t\t\tcout << \"Waiting for thread timed out\" << endl;\n> +\t\t\treturn TestFail;\n> +\t\t}\n> +\n> +\t\tdelete thread;\n> +\n\nHow about a test for waiting on a thread that isn't running? (Perhaps\nput in an thread->wait(utils::duration::max()); after we know the thread\nhas already stopped here ?\n\n\nWhat happens if the wait receives a signal while it is waiting?\n\n\n> \t\treturn TestPass;\n> \t}\n> \n>","headers":{"Return-Path":"","Received":["from perceval.ideasonboard.com (perceval.ideasonboard.com\n\t[213.167.242.64])\n\tby lancelot.ideasonboard.com (Postfix) with ESMTPS id 1485B6044F\n\tfor ;\n\tThu, 23 Jan 2020 11:19:27 +0100 (CET)","from [192.168.0.65]\n\t(cpc85452-aztw29-2-0-cust211.18-1.cable.virginm.net [82.38.172.212])\n\tby perceval.ideasonboard.com (Postfix) with ESMTPSA id 7B5BD2E5;\n\tThu, 23 Jan 2020 11:19:26 +0100 (CET)"],"DKIM-Signature":"v=1; a=rsa-sha256; c=relaxed/simple; d=ideasonboard.com;\n\ts=mail; t=1579774766;\n\tbh=7jYTTjUwqrAV9wxAURtOYeTVnNnNJ+2driO1A+hLwzw=;\n\th=Reply-To:Subject:To:References:From:Date:In-Reply-To:From;\n\tb=duFHWdACcTLidPy1Nl4nn2IDEP5vX7HW1tTIeTRLK37sSL/hpyNetV/Q21N5Pj1bh\n\tdd9FMfk/qUOaC1m+SXBhod7IR5r4ceqFqSsEVB3kItIeF1wGKEn42gP+i6bYlw4X7O\n\t7VmrYGVUFcZkarIwc4VT0PqwuUbckzlMb5ycuqN4=","Reply-To":"kieran.bingham@ideasonboard.com","To":"Laurent Pinchart ,\n\tlibcamera-devel@lists.libcamera.org","References":"<20200123025520.12149-1-laurent.pinchart@ideasonboard.com>\n\t<20200123025520.12149-2-laurent.pinchart@ideasonboard.com>","From":"Kieran Bingham ","Openpgp":"preference=signencrypt","Autocrypt":"addr=kieran.bingham@ideasonboard.com; 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Linux x86_64; rv:60.0) Gecko/20100101\n\tThunderbird/60.9.0","MIME-Version":"1.0","In-Reply-To":"<20200123025520.12149-2-laurent.pinchart@ideasonboard.com>","Content-Type":"text/plain; charset=utf-8","Content-Language":"en-GB","Content-Transfer-Encoding":"8bit","Subject":"Re: [libcamera-devel] [PATCH 2/2] test: threads: Add wait() timeout\n\ttest","X-BeenThere":"libcamera-devel@lists.libcamera.org","X-Mailman-Version":"2.1.29","Precedence":"list","List-Id":"","List-Unsubscribe":",\n\t","List-Archive":"","List-Post":"","List-Help":"","List-Subscribe":",\n\t","X-List-Received-Date":"Thu, 23 Jan 2020 10:19:27 -0000"}},{"id":3587,"web_url":"https://patchwork.libcamera.org/comment/3587/","msgid":"<20200123131049.GA15437@pendragon.ideasonboard.com>","date":"2020-01-23T13:10:49","subject":"Re: [libcamera-devel] [PATCH 2/2] test: threads: Add wait() timeout\n\ttest","submitter":{"id":2,"url":"https://patchwork.libcamera.org/api/people/2/","name":"Laurent Pinchart","email":"laurent.pinchart@ideasonboard.com"},"content":"Hi Kieran,\n\nOn Thu, Jan 23, 2020 at 10:19:23AM +0000, Kieran Bingham wrote:\n> On 23/01/2020 02:55, Laurent Pinchart wrote:\n> > Add a test case to wait with a timeout, testing both a too short and a\n> > long enough duration.\n> > \n> > Signed-off-by: Laurent Pinchart \n> \n> Some discussion below, but this is fine stand-alone anyway.\n> \n> Reviewed-by: Kieran Bingham \n> \n> > ---\n> > test/threads.cpp | 33 ++++++++++++++++++++++++++-------\n> > 1 file changed, 26 insertions(+), 7 deletions(-)\n> > \n> > diff --git a/test/threads.cpp b/test/threads.cpp\n> > index 9a2d39dfd106..fc4b07cc6428 100644\n> > --- a/test/threads.cpp\n> > +++ b/test/threads.cpp\n> > @@ -15,24 +15,22 @@\n> > using namespace std;\n> > using namespace libcamera;\n> > \n> > -class InstrumentedThread : public Thread\n> > +class DelayThread : public Thread\n> > {\n> > public:\n> > -\tInstrumentedThread(unsigned int iterations)\n> > -\t\t: iterations_(iterations)\n> > +\tDelayThread(chrono::steady_clock::duration duration)\n> > +\t\t: duration_(duration)\n> > \t{\n> > \t}\n> > \n> > protected:\n> > \tvoid run()\n> > \t{\n> > -\t\tfor (unsigned int i = 0; i < iterations_; ++i) {\n> > -\t\t\tthis_thread::sleep_for(chrono::milliseconds(50));\n> > -\t\t}\n> > +\t\tthis_thread::sleep_for(duration_);\n> > \t}\n> > \n> > private:\n> > -\tunsigned int iterations_;\n> > +\tchrono::steady_clock::duration duration_;\n> > };\n> > \n> > class ThreadTest : public Test\n> > @@ -82,6 +80,27 @@ protected:\n> > \n> > \t\tdelete thread;\n> > \n> > +\t\t/* Test waiting for completion with a timeout. */\n> > +\t\tthread = new DelayThread(chrono::milliseconds(500));\n> > +\t\tthread->start();\n> > +\t\tthread->exit(0);\n> > +\n> > +\t\tbool timeout = thread->wait(chrono::milliseconds(100));\n> > +\n> > +\t\tif (!timeout) {\n> > +\t\t\tcout << \"Waiting for thread didn't time out\" << endl;\n> > +\t\t\treturn TestFail;\n> > +\t\t}\n> > +\n> > +\t\ttimeout = thread->wait(chrono::milliseconds(1000));\n> > +\n> > +\t\tif (timeout) {\n> > +\t\t\tcout << \"Waiting for thread timed out\" << endl;\n> > +\t\t\treturn TestFail;\n> > +\t\t}\n> > +\n> > +\t\tdelete thread;\n> > +\n> \n> How about a test for waiting on a thread that isn't running? (Perhaps\n> put in an thread->wait(utils::duration::max()); after we know the thread\n> has already stopped here ?\n\nThat's a good idea. I'll add it as a separate patch.\n\n> What happens if the wait receives a signal while it is waiting?\n\nAs in a POSIX signal ? As far as I can tell, nothing.\n\n> > \t\treturn TestPass;\n> > \t}\n> >","headers":{"Return-Path":"","Received":["from perceval.ideasonboard.com (perceval.ideasonboard.com\n\t[IPv6:2001:4b98:dc2:55:216:3eff:fef7:d647])\n\tby lancelot.ideasonboard.com (Postfix) with ESMTPS id BB94760455\n\tfor ;\n\tThu, 23 Jan 2020 14:11:06 +0100 (CET)","from pendragon.ideasonboard.com (81-175-216-236.bb.dnainternet.fi\n\t[81.175.216.236])\n\tby perceval.ideasonboard.com (Postfix) with ESMTPSA id 3933D2E5;\n\tThu, 23 Jan 2020 14:11:06 +0100 (CET)"],"DKIM-Signature":"v=1; a=rsa-sha256; c=relaxed/simple; d=ideasonboard.com;\n\ts=mail; t=1579785066;\n\tbh=5EHvR3dDRLjfuyENVLec5wqDydlS6U5siLN7cEq39hc=;\n\th=Date:From:To:Cc:Subject:References:In-Reply-To:From;\n\tb=vn1ZYYRcsKmFqKbaffVwbqlb/goQqDi8H7uh7qTsURjL8AtYpcdSzP05Zj/NW7hWK\n\toXYelDJ9mvEdCiwXHh6q/dmZhOP2ma5vmilWNQuEGCYNZfQp84e+07oejtytZdILxc\n\t7mkbLf9fhUy+JPT9kCRegSorPlpYZNTyYlY5xRj0=","Date":"Thu, 23 Jan 2020 15:10:49 +0200","From":"Laurent Pinchart ","To":"Kieran Bingham ","Cc":"libcamera-devel@lists.libcamera.org","Message-ID":"<20200123131049.GA15437@pendragon.ideasonboard.com>","References":"<20200123025520.12149-1-laurent.pinchart@ideasonboard.com>\n\t<20200123025520.12149-2-laurent.pinchart@ideasonboard.com>\n\t<32f4c42f-21c4-3817-8f38-0256ac42e4d8@ideasonboard.com>","MIME-Version":"1.0","Content-Type":"text/plain; charset=utf-8","Content-Disposition":"inline","In-Reply-To":"<32f4c42f-21c4-3817-8f38-0256ac42e4d8@ideasonboard.com>","User-Agent":"Mutt/1.10.1 (2018-07-13)","Subject":"Re: [libcamera-devel] [PATCH 2/2] test: threads: Add wait() timeout\n\ttest","X-BeenThere":"libcamera-devel@lists.libcamera.org","X-Mailman-Version":"2.1.29","Precedence":"list","List-Id":"","List-Unsubscribe":",\n\t","List-Archive":"","List-Post":"","List-Help":"","List-Subscribe":",\n\t","X-List-Received-Date":"Thu, 23 Jan 2020 13:11:06 -0000"}},{"id":3645,"web_url":"https://patchwork.libcamera.org/comment/3645/","msgid":"<20200210211327.GB2429426@oden.dyn.berto.se>","date":"2020-02-10T21:13:27","subject":"Re: [libcamera-devel] [PATCH 2/2] test: threads: Add wait() timeout\n\ttest","submitter":{"id":5,"url":"https://patchwork.libcamera.org/api/people/5/","name":"Niklas Söderlund","email":"niklas.soderlund@ragnatech.se"},"content":"Hi Laurent,\n\nThanks for your work.\n\nOn 2020-01-23 04:55:20 +0200, Laurent Pinchart wrote:\n> Add a test case to wait with a timeout, testing both a too short and a\n> long enough duration.\n> \n> Signed-off-by: Laurent Pinchart \n\nReviewed-by: Niklas Söderlund \n\n> ---\n> test/threads.cpp | 33 ++++++++++++++++++++++++++-------\n> 1 file changed, 26 insertions(+), 7 deletions(-)\n> \n> diff --git a/test/threads.cpp b/test/threads.cpp\n> index 9a2d39dfd106..fc4b07cc6428 100644\n> --- a/test/threads.cpp\n> +++ b/test/threads.cpp\n> @@ -15,24 +15,22 @@\n> using namespace std;\n> using namespace libcamera;\n> \n> -class InstrumentedThread : public Thread\n> +class DelayThread : public Thread\n> {\n> public:\n> -\tInstrumentedThread(unsigned int iterations)\n> -\t\t: iterations_(iterations)\n> +\tDelayThread(chrono::steady_clock::duration duration)\n> +\t\t: duration_(duration)\n> \t{\n> \t}\n> \n> protected:\n> \tvoid run()\n> \t{\n> -\t\tfor (unsigned int i = 0; i < iterations_; ++i) {\n> -\t\t\tthis_thread::sleep_for(chrono::milliseconds(50));\n> -\t\t}\n> +\t\tthis_thread::sleep_for(duration_);\n> \t}\n> \n> private:\n> -\tunsigned int iterations_;\n> +\tchrono::steady_clock::duration duration_;\n> };\n> \n> class ThreadTest : public Test\n> @@ -82,6 +80,27 @@ protected:\n> \n> \t\tdelete thread;\n> \n> +\t\t/* Test waiting for completion with a timeout. */\n> +\t\tthread = new DelayThread(chrono::milliseconds(500));\n> +\t\tthread->start();\n> +\t\tthread->exit(0);\n> +\n> +\t\tbool timeout = thread->wait(chrono::milliseconds(100));\n> +\n> +\t\tif (!timeout) {\n> +\t\t\tcout << \"Waiting for thread didn't time out\" << endl;\n> +\t\t\treturn TestFail;\n> +\t\t}\n> +\n> +\t\ttimeout = thread->wait(chrono::milliseconds(1000));\n> +\n> +\t\tif (timeout) {\n> +\t\t\tcout << \"Waiting for thread timed out\" << endl;\n> +\t\t\treturn TestFail;\n> +\t\t}\n> +\n> +\t\tdelete thread;\n> +\n> \t\treturn TestPass;\n> \t}\n> \n> -- \n> Regards,\n> \n> Laurent Pinchart\n> \n> _______________________________________________\n> libcamera-devel mailing list\n> libcamera-devel@lists.libcamera.org\n> https://lists.libcamera.org/listinfo/libcamera-devel","headers":{"Return-Path":"","Received":["from mail-lf1-x141.google.com (mail-lf1-x141.google.com\n\t[IPv6:2a00:1450:4864:20::141])\n\tby lancelot.ideasonboard.com (Postfix) with ESMTPS id A4D5960990\n\tfor ;\n\tMon, 10 Feb 2020 22:13:29 +0100 (CET)","by mail-lf1-x141.google.com with SMTP id b15so5368962lfc.4\n\tfor ;\n\tMon, 10 Feb 2020 13:13:29 -0800 (PST)","from localhost (h-200-138.A463.priv.bahnhof.se. 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