本机插件空异常 OSX

Question

我已经在 Unity 论坛上交叉发布了这个；如果这违反行为，我们深表歉意。

大家好

当我尝试通过插件从 Unity 在 C++ 中使用 std::map 时，我遇到了崩溃。我没有将地图的内容从插件传递给 Unity；我只是调用成员函数，例如 find() 函数（我的应用程序崩溃的地方）

当我将我的插件加载到 C++ 控制台应用程序时代码执行正常，但它在 Unity 中崩溃。我怀疑存在 marshalling/memory 分配问题，Unity 不允许我分配某种类型的内存

附件是 Player.log 输出以及调用 Unity 脚本和被调用方 C++ 代码。任何帮助将不胜感激。

此致

兰科电话

调用 C# 代码：

public string filename; // The name of the audio file this behaviour corresponds to

[DllImport ("Unity-Audio-Plugin")]
private static extern void addSoundToRendererBank(string filename);

[DllImport ("Unity-Audio-Plugin")]
private static extern void addSoundToRendererBankAtPosition(string filename, float xPos, float zPos);

[DllImport ("Unity-Audio-Plugin")]
private static extern bool setSoundWithNameToPosition (string filename, float xPos, float zPos);

[DllImport ("Unity-Audio-Plugin")]
private static extern bool deactivateSoundInRendererBank (string filename);

// Use this for initialization
public int incr;
void Start () {
    incr = 1;
    addSoundToRendererBank (filename);
    InvokeRepeating ("moveMe", 0, 0.3F);
}
.....

被调用者 C++ 代码：

 void addSoundToRendererBank(char *filename)
 {
     printf("Calling the addSoundToRendererBank function with %s as a filename\n", filename);
     copyStringFromManagedCaller(filename);
     std::string fileNameStr(&buffer[0]);

     int soundLoc = soundBank->getIDForName(fileNameStr);
     if (soundLoc > 0) { // Sound is already in the bank
         // If its just been deactivated, reactivate it
         std::string key(&buffer[0]);
         soundBank->activateSoundSource(key);
     }
     ...
     ...
     int SoundBank::getIDForName(std::string &filePath)
     {
          // Filepath -> sourceIDMap -> source -> ID
          std::string key(filePath);
          int location;

          std::cerr << "About to enter the try-catch block in the SoundBank::getIDForName() function using " << key << std::endl;

          // Print the current elements inside the map
          std::cerr << "The contents of the sourceIDMap:" << std::endl;
          SoundSourceMapIterator map_it;
        //        for (map_it = sourceIDMap.begin(); map_it != sourceIDMap.end(); ++map_it) {
        //            std::cerr << "Key: " << map_it->first << "\tValue: " << map_it->second << std::endl;
        //        }
          std::cerr << "I'm about to die.... :-(" << std::endl;

          // Throws randomers; using find instead
          //        try
          //        {
          //            location = sourceIDMap.at(key);
          //        }
          //        catch (const std::out_of_range& oorEx)
          //        {
          //            location = -1;
          //        }

          SoundSourceMapIterator it = sourceIDMap.find(key);
          if (it == sourceIDMap.end())
              location = -1;
          else
              location = it->second;
          .......

控制台输出：

.....
The contents of the sourceIDMap:
I'm about to die.... :-(
Receiving unhandled NULL exception
Obtained 27 stack frames.
#0 0x00000111a00b91 in std::__1::__tree_iterator, std::__1::allocator >, int>, std::__1::__tree_node, std::__1::allocator >, int>, void*>*, long> std::__1::__tree, std::__1::allocator >, int>, std::__1::__map_value_compare, std::__1::allocator >, std::__1::__value_type, std::__1::allocator >, int>, std::__1::less, std::__1::allocator > >, true>, std::__1::allocator, std::__1::allocator >, int> > >::find, std::__1::allocator > >(std::__1::basic_string, std::__1::allocator > const&)
#1 0x000001119fdb21 in
uap::SoundBank::getIDForName(std::__1::basic_string, std::__1::allocator >&)
#2 0x00000111a06891 in addSoundToRendererBank
......

Answer 1

我已经解决了这个问题 http://forum.unity3d.com/threads/native-plugin-null-exception-osx.314881/

本机插件空异常 OSX

Native Plugin Null Exception OSX

c#

c++

macos

unity3d