[英]Why am I getting an error and crash code 0 after all was processed?
嗨,我有一个使用boost的日志记录类,在initLogging中,我这样做:
// Create a backend
boost::shared_ptr< SinkTextFileBakend > sink = boost::log::add_file_log(
sm_folderOfLogFiles + "optimisations_%Y-%m-%d_%H-%M-%S.%N.log",
boost::log::keywords::format = boost::log::expressions::stream
<< boost::log::expressions::attr< boost::log::attributes::current_process_name::value_type >("Executable") << "("
<< boost::log::expressions::attr< boost::log::attributes::current_process_id::value_type >("ExeUID") << ") CID("
<< correlid << ") " << severity << "["
<< boost::log::expressions::format_date_time< boost::posix_time::ptime >("TimeStamp", "%Y-%m-%d %H:%M:%S.%f")
<< "] [" << boost::log::expressions::attr< boost::log::attributes::current_thread_id::value_type >("ThreadID")
<< "] " << classname << " - " << boost::log::expressions::smessage,
boost::log::keywords::open_mode = (std::ios::out | std::ios::app),
boost::log::keywords::rotation_size = 2 * 1024 * 1024,
boost::log::keywords::auto_flush = true
);
sink->locked_backend()->set_open_handler(&openingHandler);
boost::log::core::get()->set_filter(severity >= SeverityLevels::info);
boost::log::core::get()->add_sink(sink);
// for logging in console, too
boost::shared_ptr< boost::log::sinks::text_ostream_backend > backend =
boost::make_shared< boost::log::sinks::text_ostream_backend >();
backend->add_stream(
boost::shared_ptr< std::ostream >(&std::cout));
// Enable auto-flushing after each log record written
backend->auto_flush(true);
// Wrap it into the frontend and register in the core.
// The backend requires synchronization in the frontend.
boost::shared_ptr< boost::log::sinks::synchronous_sink< boost::log::sinks::text_ostream_backend > > backend_sink(
new boost::log::sinks::synchronous_sink< boost::log::sinks::text_ostream_backend >(backend)); // for testing and printing log in sysout
backend_sink->set_formatter(
boost::log::expressions::stream
// line id will be written in hex, 8-digits, zero-filled
<< boost::log::expressions::attr< boost::log::attributes::current_process_name::value_type >("Executable")
<< "(" << boost::log::expressions::attr< boost::log::attributes::current_process_name::value_type >("ExeUID")
<< ") CID(" << correlid << ") " << severity << " ["
<< boost::log::expressions::format_date_time< boost::posix_time::ptime >("TimeStamp", "%Y-%m-%d %H:%M:%S.%f")
<< "] [" << boost::log::expressions::attr< boost::log::attributes::current_thread_id::value_type >("ThreadID")
<< "] " << classname << " - " << boost::log::expressions::smessage);
boost::log::core::get()->add_sink(backend_sink); // for testing and printing log in sysout
因此,我有2个后端,一个用于写入文件,另一个用于在控制台中打印。 在执行结束时,我会收到如下错误:
*** Error in `/home/sop/project/build/proj': double free or corruption (out): 0x00000000008caaa0 ***
*** Crashed with return code: 0 ***
(在IDE中为KDevelop):
*** Error in `./proj': double free or corruption (out): 0x00000000008caaa0 ***
Aborted (core dumped)
(如果在终端中运行)
我已经做了一些测试,如果我删除了登录控制台的部分,那么这个问题就消失了。 如果它只是控制台日志记录的一部分,则似乎出现了相同的错误,因此似乎所有问题都出在该部分。 我不明白我在做什么错,请提供任何帮助。 谢谢
这行是有问题的:
backend->add_stream(
boost::shared_ptr< std::ostream >(&std::cout));
std::cout
是全局对象,不能使用operator delete
,而boost::shared_ptr
销毁时会发生这种情况。 您应该使用boost::null_deleter
:
backend->add_stream(
boost::shared_ptr< std::ostream >(&std::cout, boost::null_deleter()));
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