[{"id":384,"web_url":"https://patchwork.libcamera.org/comment/384/","msgid":"<20190117203739.GB23244@pendragon.ideasonboard.com>","date":"2019-01-17T20:37:39","subject":"Re: [libcamera-devel] [PATCH 3/5] libcamera: timer: Fix 32 bit wrap","submitter":{"id":2,"url":"https://patchwork.libcamera.org/api/people/2/","name":"Laurent Pinchart","email":"laurent.pinchart@ideasonboard.com"},"content":"Hi Kieran,\n\nThank you for the patch.\n\nOn Thu, Jan 17, 2019 at 08:20:41PM +0000, Kieran Bingham wrote:\n> The msec parameter was multiplied as a 32 bit value when converting to\n> nanosecond resolution. This wraps at 4.2949 seconds, and causes timers\n> longer than this to fail.\n> \n> Fix the multiplication to upcast to 64 bit using an unsigned long long\n> specifier on the multiplier.\n> \n> While we're here, initialise the two integer class members in the\n> constructor initialiser list.\n> \n\nA Fixes: tag would be nice. Apart from that,\n\nReviewed-by: Laurent Pinchart \n\n> Signed-off-by: Kieran Bingham \n> ---\n> src/libcamera/timer.cpp | 3 ++-\n> 1 file changed, 2 insertions(+), 1 deletion(-)\n> \n> diff --git a/src/libcamera/timer.cpp b/src/libcamera/timer.cpp\n> index b5212ba26869..306825fde3c0 100644\n> --- a/src/libcamera/timer.cpp\n> +++ b/src/libcamera/timer.cpp\n> @@ -36,6 +36,7 @@ namespace libcamera {\n> * \\brief Construct a timer\n> */\n> Timer::Timer()\n> +\t: interval_(0), deadline_(0)\n> {\n> }\n> \n> @@ -51,7 +52,7 @@ void Timer::start(unsigned int msec)\n> \tclock_gettime(CLOCK_MONOTONIC, &tp);\n> \n> \tinterval_ = msec;\n> -\tdeadline_ = tp.tv_sec * 1000000000ULL + tp.tv_nsec + msec * 1000000;\n> +\tdeadline_ = tp.tv_sec * 1000000000ULL + tp.tv_nsec + msec * 1000000ULL;\n> \n> \tLOG(Debug) << \"Starting timer \" << this << \" with interval \" << msec\n> \t\t << \": deadline \" << deadline_;","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 3BEAE60B2D\n\tfor ;\n\tThu, 17 Jan 2019 21:37:40 +0100 (CET)","from pendragon.ideasonboard.com\n\t(dfj612yhrgyx302h3jwwy-3.rev.dnainternet.fi\n\t[IPv6:2001:14ba:21f5:5b00:ce28:277f:58d7:3ca4])\n\tby perceval.ideasonboard.com (Postfix) with ESMTPSA id A514A53E;\n\tThu, 17 Jan 2019 21:37:39 +0100 (CET)"],"DKIM-Signature":"v=1; a=rsa-sha256; c=relaxed/simple; d=ideasonboard.com;\n\ts=mail; t=1547757459;\n\tbh=h0IXU2HftupNP9XR3YMBb+YrlX+vA11vahwutridTZk=;\n\th=Date:From:To:Cc:Subject:References:In-Reply-To:From;\n\tb=f+z3SKBdOGkSahmJvRHjYoBOfEv4a+aECiggWb90hBXfAkIWqpCv3nImM/14fLHP2\n\t2B2pZ8m7Gb4E1b3mgIHi3TZvBqq6QP6ShWbYZr9gYMpERD8/L5cCpi2nHV1CVwfkIw\n\tFFDnefTs18tpBcmAEM8S29kRkm4Y3AmREPWxao6g=","Date":"Thu, 17 Jan 2019 22:37:39 +0200","From":"Laurent Pinchart ","To":"Kieran Bingham ","Cc":"LibCamera Devel ","Message-ID":"<20190117203739.GB23244@pendragon.ideasonboard.com>","References":"<20190117202043.21420-1-kieran.bingham@ideasonboard.com>\n\t<20190117202043.21420-4-kieran.bingham@ideasonboard.com>","MIME-Version":"1.0","Content-Type":"text/plain; charset=utf-8","Content-Disposition":"inline","In-Reply-To":"<20190117202043.21420-4-kieran.bingham@ideasonboard.com>","User-Agent":"Mutt/1.10.1 (2018-07-13)","Subject":"Re: [libcamera-devel] [PATCH 3/5] libcamera: timer: Fix 32 bit wrap","X-BeenThere":"libcamera-devel@lists.libcamera.org","X-Mailman-Version":"2.1.23","Precedence":"list","List-Id":"","List-Unsubscribe":",\n\t","List-Archive":"","List-Post":"","List-Help":"","List-Subscribe":",\n\t","X-List-Received-Date":"Thu, 17 Jan 2019 20:37:40 -0000"}},{"id":388,"web_url":"https://patchwork.libcamera.org/comment/388/","msgid":"<9b574093-d23a-feba-2229-1e0dcdf9f236@ideasonboard.com>","date":"2019-01-17T21:32:34","subject":"Re: [libcamera-devel] [PATCH 3/5] libcamera: timer: Fix 32 bit wrap","submitter":{"id":4,"url":"https://patchwork.libcamera.org/api/people/4/","name":"Kieran Bingham","email":"kieran.bingham@ideasonboard.com"},"content":"On 17/01/2019 20:37, Laurent Pinchart wrote:\n> Hi Kieran,\n> \n> Thank you for the patch.\n> \n> On Thu, Jan 17, 2019 at 08:20:41PM +0000, Kieran Bingham wrote:\n>> The msec parameter was multiplied as a 32 bit value when converting to\n>> nanosecond resolution. This wraps at 4.2949 seconds, and causes timers\n>> longer than this to fail.\n>>\n>> Fix the multiplication to upcast to 64 bit using an unsigned long long\n>> specifier on the multiplier.\n>>\n>> While we're here, initialise the two integer class members in the\n>> constructor initialiser list.\n>>\n> \n> A Fixes: tag would be nice. Apart from that,\n\nWait, what? It was here? How did I lose that!\n\nI'll add it back.\n\n\nFixes: 1a57bcb8d1a7 (\"libcamera: Add event notification infrastructure\")\n\n\n> Reviewed-by: Laurent Pinchart \n> \n>> Signed-off-by: Kieran Bingham \n>> ---\n>> src/libcamera/timer.cpp | 3 ++-\n>> 1 file changed, 2 insertions(+), 1 deletion(-)\n>>\n>> diff --git a/src/libcamera/timer.cpp b/src/libcamera/timer.cpp\n>> index b5212ba26869..306825fde3c0 100644\n>> --- a/src/libcamera/timer.cpp\n>> +++ b/src/libcamera/timer.cpp\n>> @@ -36,6 +36,7 @@ namespace libcamera {\n>> * \\brief Construct a timer\n>> */\n>> Timer::Timer()\n>> +\t: interval_(0), deadline_(0)\n>> {\n>> }\n>> \n>> @@ -51,7 +52,7 @@ void Timer::start(unsigned int msec)\n>> \tclock_gettime(CLOCK_MONOTONIC, &tp);\n>> \n>> \tinterval_ = msec;\n>> -\tdeadline_ = tp.tv_sec * 1000000000ULL + tp.tv_nsec + msec * 1000000;\n>> +\tdeadline_ = tp.tv_sec * 1000000000ULL + tp.tv_nsec + msec * 1000000ULL;\n>> \n>> \tLOG(Debug) << \"Starting timer \" << this << \" with interval \" << msec\n>> \t\t << \": deadline \" << deadline_;\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 97D9D60B2D\n\tfor ;\n\tThu, 17 Jan 2019 22:32:37 +0100 (CET)","from [192.168.0.21]\n\t(cpc89242-aztw30-2-0-cust488.18-1.cable.virginm.net [86.31.129.233])\n\tby perceval.ideasonboard.com (Postfix) with ESMTPSA id C694B53E;\n\tThu, 17 Jan 2019 22:32:36 +0100 (CET)"],"DKIM-Signature":"v=1; a=rsa-sha256; c=relaxed/simple; d=ideasonboard.com;\n\ts=mail; t=1547760756;\n\tbh=11xXNE3p7f4y3zsAMbfTuFY64vofXDWQFpmLV7P8Vjo=;\n\th=Reply-To:Subject:To:Cc:References:From:Date:In-Reply-To:From;\n\tb=EWbxM8yj55M2wlRF3xjXp9Fqw+pndvv05OcUnzwx909povjVWtMGZkBQOD93Hc90P\n\tKyFrxLeB6X8R3+bP77h0zgL55mB6qXdvruxzZ56fo8heDTvcdUOo2UF1MSKLDTwaiT\n\tOWsvI394bDWKYclN61KxGopVg84mCC4SMi8eH2Qc=","Reply-To":"kieran.bingham@ideasonboard.com","To":"Laurent Pinchart ","Cc":"LibCamera Devel ","References":"<20190117202043.21420-1-kieran.bingham@ideasonboard.com>\n\t<20190117202043.21420-4-kieran.bingham@ideasonboard.com>\n\t<20190117203739.GB23244@pendragon.ideasonboard.com>","From":"Kieran Bingham ","Openpgp":"preference=signencrypt","Autocrypt":"addr=kieran.bingham@ideasonboard.com; keydata=\n\tmQINBFYE/WYBEACs1PwjMD9rgCu1hlIiUA1AXR4rv2v+BCLUq//vrX5S5bjzxKAryRf0uHat\n\tV/zwz6hiDrZuHUACDB7X8OaQcwhLaVlq6byfoBr25+hbZG7G3+5EUl9cQ7dQEdvNj6V6y/SC\n\trRanWfelwQThCHckbobWiQJfK9n7rYNcPMq9B8e9F020LFH7Kj6YmO95ewJGgLm+idg1Kb3C\n\tpotzWkXc1xmPzcQ1fvQMOfMwdS+4SNw4rY9f07Xb2K99rjMwZVDgESKIzhsDB5GY465sCsiQ\n\tcSAZRxqE49RTBq2+EQsbrQpIc8XiffAB8qexh5/QPzCmR4kJgCGeHIXBtgRj+nIkCJPZvZtf\n\tKr2EAbc6tgg6DkAEHJb+1okosV09+0+TXywYvtEop/WUOWQ+zo+Y/OBd+8Ptgt1pDRyOBzL8\n\tRXa8ZqRf0Mwg75D+dKntZeJHzPRJyrlfQokngAAs4PaFt6UfS+ypMAF37T6CeDArQC41V3ko\n\tlPn1yMsVD0p+6i3DPvA/GPIksDC4owjnzVX9kM8Zc5Cx+XoAN0w5Eqo4t6qEVbuettxx55gq\n\t8K8FieAjgjMSxngo/HST8TpFeqI5nVeq0/lqtBRQKumuIqDg+Bkr4L1V/PSB6XgQcOdhtd36\n\tOe9X9dXB8YSNt7VjOcO7BTmFn/Z8r92mSAfHXpb07YJWJosQOQARAQABtDBLaWVyYW4gQmlu\n\tZ2hhbSA8a2llcmFuLmJpbmdoYW1AaWRlYXNvbmJvYXJkLmNvbT6JAkAEEwEKACoCGwMFCwkI\n\tBwIGFQgJCgsCBBYCAwECHgECF4ACGQEFAlnDk/gFCQeA/YsACgkQoR5GchCkYf3X5w/9EaZ7\n\tcnUcT6dxjxrcmmMnfFPoQA1iQXr/MXQJBjFWfxRUWYzjvUJb2D/FpA8FY7y+vksoJP7pWDL7\n\tQTbksdwzagUEk7CU45iLWL/CZ/knYhj1I/+5LSLFmvZ/5Gf5xn2ZCsmg7C0MdW/GbJ8IjWA8\n\t/LKJSEYH8tefoiG6+9xSNp1p0Gesu3vhje/GdGX4wDsfAxx1rIYDYVoX4bDM+uBUQh7sQox/\n\tR1bS0AaVJzPNcjeC14MS226mQRUaUPc9250aj44WmDfcg44/kMsoLFEmQo2II9aOlxUDJ+x1\n\txohGbh9mgBoVawMO3RMBihcEjo/8ytW6v7xSF+xP4Oc+HOn7qebAkxhSWcRxQVaQYw3S9iZz\n\t2iA09AXAkbvPKuMSXi4uau5daXStfBnmOfalG0j+9Y6hOFjz5j0XzaoF6Pln0jisDtWltYhP\n\tX9LjFVhhLkTzPZB/xOeWGmsG4gv2V2ExbU3uAmb7t1VSD9+IO3Km4FtnYOKBWlxwEd8qOFpS\n\tjEqMXURKOiJvnw3OXe9MqG19XdeENA1KyhK5rqjpwdvPGfSn2V+SlsdJA0DFsobUScD9qXQw\n\tOvhapHe3XboK2+Rd7L+g/9Ud7ZKLQHAsMBXOVJbufA1AT+IaOt0ugMcFkAR5UbBg5+dZUYJj\n\t1QbPQcGmM3wfvuaWV5+SlJ+WeKIb8ta5Ag0EVgT9ZgEQAM4o5G/kmruIQJ3K9SYzmPishRHV\n\tDcUcvoakyXSX2mIoccmo9BHtD9MxIt+QmxOpYFNFM7YofX4lG0ld8H7FqoNVLd/+a0yru5Cx\n\tadeZBe3qr1eLns10Q90LuMo7/6zJhCW2w+HE7xgmCHejAwuNe3+7yt4QmwlSGUqdxl8cgtS1\n\tPlEK93xXDsgsJj/bw1EfSVdAUqhx8UQ3aVFxNug5OpoX9FdWJLKROUrfNeBE16RLrNrq2ROc\n\tiSFETpVjyC/oZtzRFnwD9Or7EFMi76/xrWzk+/b15RJ9WrpXGMrttHUUcYZEOoiC2lEXMSAF\n\tSSSj4vHbKDJ0vKQdEFtdgB1roqzxdIOg4rlHz5qwOTynueiBpaZI3PHDudZSMR5Fk6QjFooE\n\tXTw3sSl/km/lvUFiv9CYyHOLdygWohvDuMkV/Jpdkfq8XwFSjOle+vT/4VqERnYFDIGBxaRx\n\tkoBLfNDiiuR3lD8tnJ4A1F88K6ojOUs+jndKsOaQpDZV6iNFv8IaNIklTPvPkZsmNDhJMRHH\n\tIu60S7BpzNeQeT4yyY4dX9lC2JL/LOEpw8DGf5BNOP1KgjCvyp1/KcFxDAo89IeqljaRsCdP\n\t7WCIECWYem6pLwaw6IAL7oX+tEqIMPph/G/jwZcdS6Hkyt/esHPuHNwX4guqTbVEuRqbDzDI\n\t2DJO5FbxABEBAAGJAiUEGAEKAA8CGwwFAlnDlGsFCQeA/gIACgkQoR5GchCkYf1yYRAAq+Yo\n\tnbf9DGdK1kTAm2RTFg+w9oOp2Xjqfhds2PAhFFvrHQg1XfQR/UF/SjeUmaOmLSczM0s6XMeO\n\tVcE77UFtJ/+hLo4PRFKm5X1Pcar6g5m4xGqa+Xfzi9tRkwC29KMCoQOag1BhHChgqYaUH3yo\n\tUzaPwT/fY75iVI+yD0ih/e6j8qYvP8pvGwMQfrmN9YB0zB39YzCSdaUaNrWGD3iCBxg6lwSO\n\tLKeRhxxfiXCIYEf3vwOsP3YMx2JkD5doseXmWBGW1U0T/oJF+DVfKB6mv5UfsTzpVhJRgee7\n\t4jkjqFq4qsUGxcvF2xtRkfHFpZDbRgRlVmiWkqDkT4qMA+4q1y/dWwshSKi/uwVZNycuLsz+\n\t+OD8xPNCsMTqeUkAKfbD8xW4LCay3r/dD2ckoxRxtMD9eOAyu5wYzo/ydIPTh1QEj9SYyvp8\n\tO0g6CpxEwyHUQtF5oh15O018z3ZLztFJKR3RD42VKVsrnNDKnoY0f4U0z7eJv2NeF8xHMuiU\n\tRCIzqxX1GVYaNkKTnb/Qja8hnYnkUzY1Lc+OtwiGmXTwYsPZjjAaDX35J/RSKAoy5wGo/YFA\n\tJxB1gWThL4kOTbsqqXj9GLcyOImkW0lJGGR3o/fV91Zh63S5TKnf2YGGGzxki+ADdxVQAm+Q\n\tsbsRB8KNNvVXBOVNwko86rQqF9drZuw=","Organization":"Ideas on Board","Message-ID":"<9b574093-d23a-feba-2229-1e0dcdf9f236@ideasonboard.com>","Date":"Thu, 17 Jan 2019 21:32:34 +0000","User-Agent":"Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101\n\tThunderbird/60.2.1","MIME-Version":"1.0","In-Reply-To":"<20190117203739.GB23244@pendragon.ideasonboard.com>","Content-Type":"text/plain; charset=utf-8","Content-Language":"en-GB","Content-Transfer-Encoding":"8bit","Subject":"Re: [libcamera-devel] [PATCH 3/5] libcamera: timer: Fix 32 bit wrap","X-BeenThere":"libcamera-devel@lists.libcamera.org","X-Mailman-Version":"2.1.23","Precedence":"list","List-Id":"","List-Unsubscribe":",\n\t","List-Archive":"","List-Post":"","List-Help":"","List-Subscribe":",\n\t","X-List-Received-Date":"Thu, 17 Jan 2019 21:32:37 -0000"}},{"id":394,"web_url":"https://patchwork.libcamera.org/comment/394/","msgid":"<20190117220121.GN6484@bigcity.dyn.berto.se>","date":"2019-01-17T22:01:21","subject":"Re: [libcamera-devel] [PATCH 3/5] libcamera: timer: Fix 32 bit wrap","submitter":{"id":5,"url":"https://patchwork.libcamera.org/api/people/5/","name":"Niklas Söderlund","email":"niklas.soderlund@ragnatech.se"},"content":"Hi Kieran,\n\nThanks for your effort.\n\nOn 2019-01-17 20:20:41 +0000, Kieran Bingham wrote:\n> The msec parameter was multiplied as a 32 bit value when converting to\n> nanosecond resolution. This wraps at 4.2949 seconds, and causes timers\n> longer than this to fail.\n> \n> Fix the multiplication to upcast to 64 bit using an unsigned long long\n> specifier on the multiplier.\n> \n> While we're here, initialise the two integer class members in the\n> constructor initialiser list.\n> \n> Signed-off-by: Kieran Bingham \n\nReviewed-by: Niklas Söderlund \n\n> ---\n> src/libcamera/timer.cpp | 3 ++-\n> 1 file changed, 2 insertions(+), 1 deletion(-)\n> \n> diff --git a/src/libcamera/timer.cpp b/src/libcamera/timer.cpp\n> index b5212ba26869..306825fde3c0 100644\n> --- a/src/libcamera/timer.cpp\n> +++ b/src/libcamera/timer.cpp\n> @@ -36,6 +36,7 @@ namespace libcamera {\n> * \\brief Construct a timer\n> */\n> Timer::Timer()\n> +\t: interval_(0), deadline_(0)\n> {\n> }\n> \n> @@ -51,7 +52,7 @@ void Timer::start(unsigned int msec)\n> \tclock_gettime(CLOCK_MONOTONIC, &tp);\n> \n> \tinterval_ = msec;\n> -\tdeadline_ = tp.tv_sec * 1000000000ULL + tp.tv_nsec + msec * 1000000;\n> +\tdeadline_ = tp.tv_sec * 1000000000ULL + tp.tv_nsec + msec * 1000000ULL;\n> \n> \tLOG(Debug) << \"Starting timer \" << this << \" with interval \" << msec\n> \t\t << \": deadline \" << deadline_;\n> -- \n> 2.17.1\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 3C9C860B2D\n\tfor ;\n\tThu, 17 Jan 2019 23:01:23 +0100 (CET)","by mail-lf1-x141.google.com with SMTP id n18so8997329lfh.6\n\tfor ;\n\tThu, 17 Jan 2019 14:01:23 -0800 (PST)","from localhost (89-233-230-99.cust.bredband2.com. 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