{"id":23021,"url":"https://patchwork.libcamera.org/api/1.1/patches/23021/?format=json","web_url":"https://patchwork.libcamera.org/patch/23021/","project":{"id":1,"url":"https://patchwork.libcamera.org/api/1.1/projects/1/?format=json","name":"libcamera","link_name":"libcamera","list_id":"libcamera_core","list_email":"libcamera-devel@lists.libcamera.org","web_url":"","scm_url":"","webscm_url":""},"msgid":"<20250325180821.1456154-4-barnabas.pocze@ideasonboard.com>","date":"2025-03-25T18:08:15","name":"[RFC,v3,3/9] libcamera: process: Use `pid_` member to decide if running","commit_ref":null,"pull_url":null,"state":"superseded","archived":false,"hash":"167d4ea854b70f5d54bbe725f9c3d8b916ea5499","submitter":{"id":216,"url":"https://patchwork.libcamera.org/api/1.1/people/216/?format=json","name":"Barnabás Pőcze","email":"barnabas.pocze@ideasonboard.com"},"delegate":null,"mbox":"https://patchwork.libcamera.org/patch/23021/mbox/","series":[{"id":5079,"url":"https://patchwork.libcamera.org/api/1.1/series/5079/?format=json","web_url":"https://patchwork.libcamera.org/project/libcamera/list/?series=5079","date":"2025-03-25T18:08:12","name":"libcamera: process: Remove `ProcessManager` singleton","version":3,"mbox":"https://patchwork.libcamera.org/series/5079/mbox/"}],"comments":"https://patchwork.libcamera.org/api/patches/23021/comments/","check":"pending","checks":"https://patchwork.libcamera.org/api/patches/23021/checks/","tags":{},"headers":{"Return-Path":"","X-Original-To":"parsemail@patchwork.libcamera.org","Delivered-To":["parsemail@patchwork.libcamera.org","kbingham@ideasonboard.com"],"Received":["from perceval.ideasonboard.com (perceval.ideasonboard.com\n\t[213.167.242.64])\n\tby patchwork.libcamera.org (Postfix) with ESMTPS id 23F55C3213\n\tfor ;\n\tTue, 25 Mar 2025 19:20:48 +0000 (UTC)","from pendragon.ideasonboard.com\n\t(cpc89244-aztw30-2-0-cust6594.18-1.cable.virginm.net\n\t[86.31.185.195])\n\tby perceval.ideasonboard.com (Postfix) with ESMTPSA id D2A88353\n\tfor ;\n\tTue, 25 Mar 2025 20:19:00 +0100 (CET)","from perceval.ideasonboard.com\n\tby perceval.ideasonboard.com with LMTP id KJMRAcrw4mfsuS8A4E0KoQ\n\t(envelope-from )\n\tfor ; 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a=rsa-sha256; c=relaxed/simple; d=ideasonboard.com;\n\ts=mail; t=1742926017;\n\tbh=JYVrXzg3/6kpyzn1pqSQm7ylA7r/8ZaMlbV173Qo9PM=;\n\th=From:To:Subject:Date:In-Reply-To:References:From;\n\tb=q0xWf3ZLw/fcU4dXsXy/f40AatEmLGGQxaaWGmj0IJXch8X/YGoOBDmuccl6Aytgt\n\ttjbAA5KZNVpJv4i32KwUg/que39OxsJlrvTN2olRoJoui7u8hwvTnCTkNWOhmfcjvJ\n\tlkHw8CJtwbsh/6jy5VL0PRdB20PrAwOPERvwwZok="],"Authentication-Results":["perceval.ideasonboard.com; dkim=pass (1024-bit key; \n\tunprotected) header.d=ideasonboard.com\n\theader.i=@ideasonboard.com\n\theader.a=rsa-sha256 header.s=mail header.b=q0xWf3ZL; dkim-atps=neutral","lancelot.ideasonboard.com; dkim=pass (1024-bit key; \n\tunprotected) header.d=ideasonboard.com\n\theader.i=@ideasonboard.com\n\theader.b=\"q0xWf3ZL\";\tdkim-atps=neutral"],"From":"=?utf-8?q?Barnab=C3=A1s_P=C5=91cze?= ","To":"libcamera-devel@lists.libcamera.org","Subject":"[RFC PATCH v3 3/9] libcamera: process: Use `pid_` member to decide\n\tif running","Date":"Tue, 25 Mar 2025 19:08:15 +0100","Message-ID":"<20250325180821.1456154-4-barnabas.pocze@ideasonboard.com>","X-Mailer":"git-send-email 2.49.0","In-Reply-To":"<20250325180821.1456154-1-barnabas.pocze@ideasonboard.com>","References":"<20250325180821.1456154-1-barnabas.pocze@ideasonboard.com>","MIME-Version":"1.0","Content-Type":"text/plain; charset=\"utf-8\"","Content-Transfer-Encoding":"quoted-printable","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","Errors-To":"libcamera-devel-bounces@lists.libcamera.org","Sender":"\"libcamera-devel\" ","X-TUID":"QYN3u8HQInw6","Resent-From":"Kieran Bingham ","Resent-To":"parsemail@patchwork.libcamera.org"},"content":"Instead of using a separate member variable, use `pid_ > 0` to determine\nif the process is still running. Previously the value of `pid_` was not\nreset to -1 when the process terminated, but since it is only meaningful\nwhile the process is running, reset it to -1 in `Process::died()`.\n\nNeither `pid_` nor `running_` are exposed, so this change has no effect\non the public interface or observable behaviour.\n\nSigned-off-by: Barnabás Pőcze \n---\n include/libcamera/internal/process.h | 1 -\n src/libcamera/process.cpp | 8 +++-----\n 2 files changed, 3 insertions(+), 6 deletions(-)","diff":"diff --git a/include/libcamera/internal/process.h b/include/libcamera/internal/process.h\nindex 58e3e41ce..030a1e66e 100644\n--- a/include/libcamera/internal/process.h\n+++ b/include/libcamera/internal/process.h\n@@ -49,7 +49,6 @@ private:\n \tvoid died(int wstatus);\n \n \tpid_t pid_;\n-\tbool running_;\n \tenum ExitStatus exitStatus_;\n \tint exitCode_;\n \ndiff --git a/src/libcamera/process.cpp b/src/libcamera/process.cpp\nindex 567b878d4..aa9e8f519 100644\n--- a/src/libcamera/process.cpp\n+++ b/src/libcamera/process.cpp\n@@ -208,7 +208,7 @@ const struct sigaction &ProcessManager::oldsa() const\n */\n \n Process::Process()\n-\t: pid_(-1), running_(false), exitStatus_(NotExited), exitCode_(0)\n+\t: pid_(-1), exitStatus_(NotExited), exitCode_(0)\n {\n }\n \n@@ -240,7 +240,7 @@ int Process::start(const std::string &path,\n {\n \tint ret;\n \n-\tif (running_)\n+\tif (pid_ > 0)\n \t\treturn 0;\n \n \tint childPid = fork();\n@@ -252,8 +252,6 @@ int Process::start(const std::string &path,\n \t\tpid_ = childPid;\n \t\tProcessManager::instance()->registerProcess(this);\n \n-\t\trunning_ = true;\n-\n \t\treturn 0;\n \t} else {\n \t\tif (isolate())\n@@ -327,7 +325,7 @@ int Process::isolate()\n */\n void Process::died(int wstatus)\n {\n-\trunning_ = false;\n+\tpid_ = -1;\n \texitStatus_ = WIFEXITED(wstatus) ? NormalExit : SignalExit;\n \texitCode_ = exitStatus_ == NormalExit ? WEXITSTATUS(wstatus) : -1;\n \n","prefixes":["RFC","v3","3/9"]}