跨越 DLL 边界时，Boost 线程中断不起作用答案

【问题标题】：Boost thread interupt does not work when crossing a DLL boundary跨越 DLL 边界时，Boost 线程中断不起作用
【发布时间】：2016-03-14 12:46:17
【问题描述】：

我正在将应用程序移植到 Windows 上，并发现当跨 DLL 边界中断 boost::thread 时，线程不会被中断。

boost 库是静态链接的，并且使用调试运行时和链接到共享运行时库的多线程支持构建。 /MDd

该项目使用 msvc12 (2013) 编译（与编译 boost 的编译器相同）。

我制作了一个简短的示例项目来演示该问题：

test.cpp

#include <iostream>

#include "boost/thread.hpp"
#include "test_library.h"
#include <iostream>
int main()
{
  qDebug() << "Hello";

  Test_library test;

  qDebug() << "Starting thread";
  boost::thread thread = boost::thread(&Test_library::Loop, &test);
  boost::this_thread::sleep_for(boost::chrono::seconds(3));

  qDebug() << "interrupt thread";
  thread.interrupt();

  qDebug() << "Joining thread";
  thread.join();

  qDebug() << "Closing Program";
  return 0;
}

test_library.cpp

#include "test_library.h"
#include "boost/thread.hpp"


void Test_library::Loop()
{

  qDebug() << "Starting loop";
  while(true)
  {
    qDebug() << "Looping";
    boost::this_thread::interruption_point();
    boost::this_thread::sleep_for(boost::chrono::milliseconds(500));
  }

  qDebug() << "Looping finished";
}

test_library.h

#pragma once
#include "test_library_global.h"
#include <QtCore>

class TEST_LIBRARYSHARED_EXPORT Test_library
{
public:
  void Loop();
};

TestProject.pro（QMake 文件）

DESTDIR = ../TestProjectDeploy/

SOURCES += \
    test.cpp


LIBS += -L$$DESTDIR -ltest_library


include(../BoostIncludes.pri)

DESTDIR = ../TestProjectDeploy/

QT       -= gui

TARGET = test_library
TEMPLATE = lib

DEFINES += TEST_LIBRARY_LIBRARY

SOURCES += test_library.cpp

HEADERS += test_library.h

TestLibrary.pro

include(../BoostIncludes.pri)

DESTDIR = ../TestProjectDeploy/

QT       -= gui

TARGET = test_library
TEMPLATE = lib

DEFINES += TEST_LIBRARY_LIBRARY

SOURCES += test_library.cpp

HEADERS += test_library.h\
        test_library_global.h

unix {
    target.path = /usr/lib
    INSTALLS += target
}

BoostIncludes.pri

win32:INCLUDEPATH += "C:/Libraries/boost_1_60_0/" 

LIBS = "-LC:/Libraries/boost_1_60_0/stage/lib/"  \
"C:/Libraries/boost_1_60_0/stage/lib/libboost_thread-vc120-mt-gd-1_60.lib" \
"C:/Libraries/boost_1_60_0/stage/lib/libboost_system-vc120-mt-gd-1_60.lib" \
"C:/Libraries/boost_1_60_0/stage/lib/libboost_chrono-vc120-mt-gd-1_60.lib" \
"C:/Libraries/boost_1_60_0/stage/lib/libboost_timer-vc120-mt-gd-1_60.lib" \

程序输出：

Hello
Starting thread
Starting loop
Looping
Looping
Looping
Looping
Looping
Looping
interrupt thread
Looping
Joining thread
Looping
Looping
Looping
Looping
Looping
Looping

【问题讨论】：

标签： c++ multithreading boost

【解决方案1】：

这个问题是由于没有动态链接到 boost 线程 dll。在所有项目中还需要一个预处理器宏

DEFINES += BOOST_THREAD_USE_DLL


################### WINDOWS ###################
WINDOWS_BOOST_DEBUG_DLL = "-LC:/Libraries/boost_1_60_0/stage/lib/"  \
-l"boost_system-vc120-mt-gd-1_60"\
-l"boost_chrono-vc120-mt-gd-1_60"\
-l"boost_thread-vc120-mt-gd-1_60"\
-l"boost_timer-vc120-mt-gd-1_60"\

【讨论】：