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{ "id": 344, "url": "https://patchwork.libcamera.org/api/covers/344/?format=api", "web_url": "https://patchwork.libcamera.org/cover/344/", "project": { "id": 1, "url": "https://patchwork.libcamera.org/api/projects/1/?format=api", "name": "libcamera", "link_name": "libcamera", "list_id": "libcamera_core", "list_email": "libcamera-devel@lists.libcamera.org", "web_url": "", "scm_url": "", "webscm_url": "" }, "msgid": "<20190123085923.12524-1-laurent.pinchart@ideasonboard.com>", "date": "2019-01-23T08:59:19", "name": "[libcamera-devel,0/4] Event dispatcher enhancements", "submitter": { "id": 2, "url": "https://patchwork.libcamera.org/api/people/2/?format=api", "name": "Laurent Pinchart", "email": "laurent.pinchart@ideasonboard.com" }, "mbox": "https://patchwork.libcamera.org/cover/344/mbox/", "series": [ { "id": 120, "url": "https://patchwork.libcamera.org/api/series/120/?format=api", "web_url": "https://patchwork.libcamera.org/project/libcamera/list/?series=120", "date": "2019-01-23T08:59:19", "name": "Event dispatcher enhancements", "version": 1, "mbox": "https://patchwork.libcamera.org/series/120/mbox/" } ], "comments": "https://patchwork.libcamera.org/api/covers/344/comments/", "headers": { "Return-Path": "<laurent.pinchart@ideasonboard.com>", "Received": [ "from perceval.ideasonboard.com (perceval.ideasonboard.com\n\t[213.167.242.64])\n\tby lancelot.ideasonboard.com (Postfix) with ESMTPS id 9084160B1B\n\tfor <libcamera-devel@lists.libcamera.org>;\n\tWed, 23 Jan 2019 09:59:28 +0100 (CET)", "from pendragon.bb.dnainternet.fi (81-175-216-236.bb.dnainternet.fi\n\t[81.175.216.236])\n\tby perceval.ideasonboard.com (Postfix) with ESMTPSA id ECF8423D\n\tfor <libcamera-devel@lists.libcamera.org>;\n\tWed, 23 Jan 2019 09:59:27 +0100 (CET)" ], "DKIM-Signature": "v=1; a=rsa-sha256; c=relaxed/simple; d=ideasonboard.com;\n\ts=mail; t=1548233968;\n\tbh=2/3N+MKlqqcnjxXlFEFN80wN4MXLQT5VBb5XnjVuUZo=;\n\th=From:To:Subject:Date:From;\n\tb=YZAfsLaBcatw//YiU/1vEGxagVlHT1tKuEHSkMwQdI5Bv3kbeh1WNrzkhxC3HLZ7B\n\tx/lQYmCpT4EjtRXYI77aqiROdwS7pN8a7wNKCPTQdbqzC0pqZNzYg0bin5WDnfuz9w\n\t+BGBHqGjdoEJdDfvOauMF2xq1scm13ZOHslECOk0=", "From": "Laurent Pinchart <laurent.pinchart@ideasonboard.com>", "To": "libcamera-devel@lists.libcamera.org", "Date": "Wed, 23 Jan 2019 10:59:19 +0200", "Message-Id": "<20190123085923.12524-1-laurent.pinchart@ideasonboard.com>", "X-Mailer": "git-send-email 2.19.2", "MIME-Version": "1.0", "Content-Transfer-Encoding": "8bit", "Subject": "[libcamera-devel] [PATCH 0/4] Event dispatcher enhancements", "X-BeenThere": "libcamera-devel@lists.libcamera.org", "X-Mailman-Version": "2.1.23", "Precedence": "list", "List-Id": "<libcamera-devel.lists.libcamera.org>", "List-Unsubscribe": "<https://lists.libcamera.org/options/libcamera-devel>,\n\t<mailto:libcamera-devel-request@lists.libcamera.org?subject=unsubscribe>", "List-Archive": "<https://lists.libcamera.org/pipermail/libcamera-devel/>", "List-Post": "<mailto:libcamera-devel@lists.libcamera.org>", "List-Help": "<mailto:libcamera-devel-request@lists.libcamera.org?subject=help>", "List-Subscribe": "<https://lists.libcamera.org/listinfo/libcamera-devel>,\n\t<mailto:libcamera-devel-request@lists.libcamera.org?subject=subscribe>", "X-List-Received-Date": "Wed, 23 Jan 2019 08:59:28 -0000" }, "content": "Hello,\n\nThis patch series enhances the event dispatcher with two new features.\nIn patch 2/4 we get EINTR support to automatically restart the ppoll()\ncall if it gets interrupted by a signal, and in patch 3/4 the event\ndispatcher API is extended with a function to interrupt in-progress\nprocessEvents() calls. This is needed in order to interrupt event loops\ngracefully.\n\nThe series starts in patch 1/4 by adding a test that fails, to outline\nmissing EINTR support, which is then fixed by patch 2/4. It ends with\nanother test case for the new EventDispatcher::interrupt() method.\n\nLaurent Pinchart (4):\n tests: Test event dispatcher interruption by signal\n libcamera: event_dispatcher_poll: Handle interrupted ppoll() calls\n libcamera: event_dispatcher: Add interrupt() function\n tests: event-dispatcher: Add processEvents() interruption test\n\n include/libcamera/event_dispatcher.h | 2 +\n src/libcamera/event_dispatcher.cpp | 10 ++\n src/libcamera/event_dispatcher_poll.cpp | 82 ++++++++++----\n src/libcamera/include/event_dispatcher_poll.h | 4 +\n test/event-dispatcher.cpp | 103 ++++++++++++++++++\n test/meson.build | 9 +-\n 6 files changed, 184 insertions(+), 26 deletions(-)\n create mode 100644 test/event-dispatcher.cpp" }