mirror of
https://github.com/SerenityOS/serenity.git
synced 2026-11-07 04:29:30 -10:00
Lucas CHOLLET
7e0a81baf1
The Kernel will now write to a .partial file until it is done writing, and then rename the file by removing the extension. This makes the final coredump appear atomically on the file system and thus remove the need for special handling of partial files in CrashDaemon.
49 lines
1.5 KiB
C++
49 lines
1.5 KiB
C++
/*
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* Copyright (c) 2020, Itamar S. <[email protected]>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include <LibCore/FileWatcher.h>
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#include <LibCore/MappedFile.h>
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#include <LibCore/Process.h>
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#include <LibCore/System.h>
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#include <LibMain/Main.h>
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static void launch_crash_reporter(ByteString const& coredump_path, bool unlink_on_exit)
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{
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auto pid = Core::Process::spawn("/bin/CrashReporter"sv,
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unlink_on_exit
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? Array { "--unlink", coredump_path.characters() }.span()
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: Array { coredump_path.characters() }.span());
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if (pid.is_error())
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warnln("Failed to launch CrashReporter");
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}
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ErrorOr<int> serenity_main(Main::Arguments)
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{
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TRY(Core::System::pledge("stdio rpath wpath cpath proc exec"));
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Core::BlockingFileWatcher watcher;
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TRY(watcher.add_watch("/tmp/coredump", Core::FileWatcherEvent::Type::ChildCreated));
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while (true) {
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auto event = watcher.wait_for_event().value();
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if (event.type != Core::FileWatcherEvent::Type::ChildCreated)
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continue;
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auto& coredump_path = event.event_path;
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if (coredump_path.ends_with(".partial"sv))
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continue;
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dbgln("New coredump file: {}", coredump_path);
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auto file_or_error = Core::MappedFile::map(coredump_path);
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if (file_or_error.is_error()) {
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dbgln("Unable to map coredump {}: {}", coredump_path, file_or_error.error());
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continue;
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}
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launch_crash_reporter(coredump_path, true);
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}
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}
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