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{ "id": 9087, "url": "https://patchwork.libcamera.org/api/covers/9087/?format=api", "web_url": "https://patchwork.libcamera.org/cover/9087/", "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": "<20200731133947.84258-1-email@uajain.com>", "date": "2020-07-31T13:39:52", "name": "[libcamera-devel,v3,0/3] Add Object::deleteLater() support", "submitter": { "id": 1, "url": "https://patchwork.libcamera.org/api/people/1/?format=api", "name": "Umang Jain", "email": "email@uajain.com" }, "mbox": "https://patchwork.libcamera.org/cover/9087/mbox/", "series": [ { "id": 1168, "url": "https://patchwork.libcamera.org/api/series/1168/?format=api", "web_url": "https://patchwork.libcamera.org/project/libcamera/list/?series=1168", "date": "2020-07-31T13:39:52", "name": "Add Object::deleteLater() support", "version": 3, "mbox": "https://patchwork.libcamera.org/series/1168/mbox/" } ], "comments": "https://patchwork.libcamera.org/api/covers/9087/comments/", "headers": { "Return-Path": "<libcamera-devel-bounces@lists.libcamera.org>", "X-Original-To": "parsemail@patchwork.libcamera.org", "Delivered-To": "parsemail@patchwork.libcamera.org", "Received": [ "from lancelot.ideasonboard.com (lancelot.ideasonboard.com\n\t[92.243.16.209])\n\tby patchwork.libcamera.org (Postfix) with ESMTPS id E96D0BD878\n\tfor <parsemail@patchwork.libcamera.org>;\n\tFri, 31 Jul 2020 13:39:55 +0000 (UTC)", "from lancelot.ideasonboard.com (localhost [IPv6:::1])\n\tby lancelot.ideasonboard.com (Postfix) with ESMTP id 411D261DCF;\n\tFri, 31 Jul 2020 15:39:55 +0200 (CEST)", "from o1.f.az.sendgrid.net (o1.f.az.sendgrid.net [208.117.55.132])\n\tby lancelot.ideasonboard.com (Postfix) with ESMTPS id 3F2F260398\n\tfor <libcamera-devel@lists.libcamera.org>;\n\tFri, 31 Jul 2020 15:39:54 +0200 (CEST)", "by filterdrecv-p3mdw1-7ff865655c-g882x with SMTP id\n\tfilterdrecv-p3mdw1-7ff865655c-g882x-20-5F241F28-4F\n\t2020-07-31 13:39:52.777678457 +0000 UTC m=+156222.255847520", "from mail.uajain.com (unknown)\n\tby ismtpd0006p1hnd1.sendgrid.net (SG) with ESMTP id\n\tk7-u94p2T0KoV6lnWcaagw for <libcamera-devel@lists.libcamera.org>;\n\tFri, 31 Jul 2020 13:39:52.366 +0000 (UTC)" ], "Authentication-Results": "lancelot.ideasonboard.com;\n\tdkim=fail reason=\"signature verification failed\" (1024-bit key;\n\tunprotected) header.d=uajain.com header.i=@uajain.com\n\theader.b=\"e/PRgMsR\"; dkim-atps=neutral", "DKIM-Signature": "v=1; a=rsa-sha256; c=relaxed/relaxed; d=uajain.com;\n\th=from:subject:mime-version:to:cc:content-transfer-encoding:\n\tcontent-type;\n\ts=s1; bh=ZFE6B/f5by20p3Ug15oaegZvlQiuBRRNoM6HSMeK4eY=;\n\tb=e/PRgMsRNk0jtudUNdFm2YkdTB4PYz4IVBUC8r2qHgq5cpE8YHspy/M5VtfTe3TT3w72\n\t73rTKH+/a3t4PWrC9aOsFW/B0CjlMYmhPxlzwadRL+tn+ANFwaEEACDO9FfWvzDM4ARyXh\n\tcX4mh6iElHT/VIAyagSSgBJP1wFbEwvfQ=", "From": "Umang Jain <email@uajain.com>", "Date": "Fri, 31 Jul 2020 13:39:52 +0000 (UTC)", "Message-Id": "<20200731133947.84258-1-email@uajain.com>", "Mime-Version": "1.0", "X-SG-EID": "1Q40EQ7YGir8a9gjSIAdTjhngY657NMk9ckeo4dbHZDiOpywc/L3L9rFqlwE4KPcp6CL6ozs3IeZvk96OtB41FraVTNUEerr68HEcxQWFp7KCL1EDPr1Toh858nCzu9GGoBcRYn338QJcRejp7o7IJwC5RFp37UsSgcGPjjGQyFWpXXEKh/7dCPZ9hraNKbXbtC8nLI+CdCiA6ErxskT4AAljraR2i13omJ1Px84uLU6k4aXGoVFOM+DSx8/9AAJRYWNfEHG0qnfTkyUL78dfg==", "To": "libcamera-devel@lists.libcamera.org", "Subject": "[libcamera-devel] [PATCH v3 0/3] Add Object::deleteLater() support", "X-BeenThere": "libcamera-devel@lists.libcamera.org", "X-Mailman-Version": "2.1.29", "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>", "Content-Type": "text/plain; charset=\"us-ascii\"", "Content-Transfer-Encoding": "7bit", "Errors-To": "libcamera-devel-bounces@lists.libcamera.org", "Sender": "\"libcamera-devel\" <libcamera-devel-bounces@lists.libcamera.org>" }, "content": "Implementation of Object::deleteLater() which ensures shared objects\nare deleted in the thread to which they belong. This fixes the issue\nwhere on hot-unplug, the Camera object is deleted in QCam's application\nthread instead of CameraManager's thread and triggering the ASSERT()\nin processNotifier (since the event notifier got deleted out of \ncontext in a different thread). See [1] for discussion.\n\n[1] https://lists.libcamera.org/pipermail/libcamera-devel/2020-July/010951.html\n\nChanges in v3:\n - Address review for 1/3. dispatchMessages() message loop changed to support\n handling dispatching of all or per type messages.\n\nChanges in v2:\n - Extend Thread::setEventDispatcher to selectively deliver messages\n - This will help if we want to explicitly deliver some messages if\n event loop is not running.\n - Include Object::deleteLater() unit test\n - One \\todo here as one case pending to cover; multiple\n deleteLater() should only delete the object once.\n - Review comments (mostly documentation fixes).\n\nUmang Jain (3):\n libcamera: thread: Support selective message dispatch to thread\n libcamera: object: Add deleteLater() support\n libcamera: camera: Ensure deletion via deleteLater()\n\n include/libcamera/camera.h | 3 +-\n include/libcamera/internal/message.h | 1 +\n include/libcamera/internal/thread.h | 3 +-\n include/libcamera/object.h | 2 +\n src/libcamera/camera.cpp | 2 +-\n src/libcamera/camera_manager.cpp | 6 +-\n src/libcamera/message.cpp | 2 +\n src/libcamera/object.cpp | 48 ++++++++++\n src/libcamera/thread.cpp | 30 +++++--\n test/meson.build | 1 +\n test/object-delete.cpp | 125 +++++++++++++++++++++++++++\n 11 files changed, 210 insertions(+), 13 deletions(-)\n create mode 100644 test/object-delete.cpp" }