我有一个项目使用CORBA / ACE进行两个分布式模块之间的连接,当我将我的解决方案从MSVS2008转移到MSVS2015时,我在每次使用 ACE_DEBUG 函数时遇到了访问冲突错误项目的时候,当我按照代码时,我发现空指针错误出现在这部分代码之前:
if (tracing)
this->start_tracing ();
这是在Log_Msg.cpp中,它是ace库的文件。以下是错误在其中生成的函数:
ssize_t
ACE_Log_Msg::log (ACE_Log_Record &log_record,
int suppress_stderr)
{
ssize_t result = 0;
// Format the message and print it to stderr and/or ship it off to
// the log_client daemon, and/or print it to the ostream. Of
// course, only print the message if "SILENT" mode is disabled.
if (ACE_BIT_DISABLED (ACE_Log_Msg::flags_,
ACE_Log_Msg::SILENT))
{
bool tracing = this->tracing_enabled ();
this->stop_tracing ();
#if !defined (ACE_WIN32)
// Make this block signal-safe.
ACE_Log_Msg_Sig_Guard sb;
#endif /* !ACE_WIN32 */
// Do the callback, if needed, before acquiring the lock
// to avoid holding the lock during the callback so we don't
// have deadlock if the callback uses the logger.
if (ACE_BIT_ENABLED (ACE_Log_Msg::flags_,
ACE_Log_Msg::MSG_CALLBACK)
&& this->msg_callback () != 0)
this->msg_callback ()->log (log_record);
// Make sure that the lock is held during all this.
ACE_MT (ACE_GUARD_RETURN (ACE_Recursive_Thread_Mutex, ace_mon,
*ACE_Log_Msg_Manager::get_lock (),
-1));
if (ACE_BIT_ENABLED (ACE_Log_Msg::flags_,
ACE_Log_Msg::STDERR)
&& !suppress_stderr) // This is taken care of by our caller.
log_record.print (ACE_Log_Msg::local_host_,
ACE_Log_Msg::flags_,
stderr);
if (ACE_BIT_ENABLED (ACE_Log_Msg::flags_, ACE_Log_Msg::CUSTOM) ||
ACE_BIT_ENABLED (ACE_Log_Msg::flags_, ACE_Log_Msg::SYSLOG) ||
ACE_BIT_ENABLED (ACE_Log_Msg::flags_, ACE_Log_Msg::LOGGER))
{
// Be sure that there is a message_queue_, with multiple threads.
ACE_MT (ACE_Log_Msg_Manager::init_backend ());
}
if (ACE_BIT_ENABLED (ACE_Log_Msg::flags_, ACE_Log_Msg::LOGGER) ||
ACE_BIT_ENABLED (ACE_Log_Msg::flags_, ACE_Log_Msg::SYSLOG))
{
result =
ACE_Log_Msg_Manager::log_backend_->log (log_record);
}
if (ACE_BIT_ENABLED (ACE_Log_Msg::flags_, ACE_Log_Msg::CUSTOM) &&
ACE_Log_Msg_Manager::custom_backend_ != 0)
{
result =
ACE_Log_Msg_Manager::custom_backend_->log (log_record);
}
// This must come last, after the other two print operations
// (see the <ACE_Log_Record::print> method for details).
if (ACE_BIT_ENABLED (ACE_Log_Msg::flags_,
ACE_Log_Msg::OSTREAM)
&& this->msg_ostream () != 0)
log_record.print (ACE_Log_Msg::local_host_,
ACE_Log_Msg::flags_,
#if defined (ACE_LACKS_IOSTREAM_TOTALLY)
static_cast<FILE *> (this->msg_ostream ())
#else /* ! ACE_LACKS_IOSTREAM_TOTALLY */
*this->msg_ostream ()
#endif /* ! ACE_LACKS_IOSTREAM_TOTALLY */
);
if (tracing)
this->start_tracing ();
}
return result;
}
我使用了__try / __除了和其他异常处理程序,但我无法解决它。我在MSVS2008中没有这样的错误。也许我应该设置一些设置或添加新文件,但我不知道它是什么。
请帮帮我:(
答案 0 :(得分:0)
您必须初始化ACE库。当你有一个常规的main()时,我们有一些宏来做这件事。可能你有一些特殊的主要内容,尝试在开始时调用ACE::init();
,最后调用ACE::fini();
。请参阅ACE_wrappers/tests/ACE_Init_Test.cpp
。
此外,您还必须使用Visual Studio 2015编译器编译ACE / TAO。也许直接升级到Visual Studio 2017,ACE / TAO 6.4.3 / 2.4.3支持该编译器。