Question

我在Unity论坛上交叉发布了这个内容;如果这违反了行为，我会道歉。

嗨伙计

当我尝试通过插件在Unity中使用C ++中的std :: map时，我遇到了崩溃。我没有从插件中将地图内容传递给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）

当我将插件加载到C ++控制台应用程序中但代码在Unity中崩溃时，代码执行正常。我怀疑有一个编组/内存分配问题，Unity不允许我分配某种类型的内存

附件是Player.log输出和调用Unity脚本以及被调用者C ++代码。任何帮助将不胜感激。

此致

Lancophone

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);
}
.....

Callee 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：

.....
  sourceIDMap的内容：
  我快死了...... :-(
  接收未处理的NULL异常
  获得27个堆叠帧   ＃0 0x00000111a00b91在std :: __ 1 :: __ tree_iterator，std :: __ 1 :: allocator＆gt;，int＆gt;，std :: __ 1 :: __ tree_node，std :: __ 1 :: allocator＆gt;，int＆gt;，void *＆gt; *，长＆gt; std :: __ 1 :: __ tree，std :: __ 1 :: allocator＆gt;，int＆gt;，std :: __ 1 :: __ map_value_compare，std :: __ 1 :: allocator＆gt;，std :: __ 1 :: __ value_type，std :: __1 :: allocator＆gt;，int＆gt ;,std :: __ 1 :: less，std :: __ 1 :: allocator＆gt; ＆gt;，true＆gt;，std :: __ 1 :: allocator，std :: __ 1 :: allocator＆gt;，int＆gt; ＆GT; ＆gt; :: find，std :: __ 1 :: allocator＆gt; ＆gt;（std :: __ 1 :: basic_string，std :: __ 1 :: allocator＆gt; const＆amp;）
  ＃1 0x000001119fdb21 in   uap :: SoundBank :: getIDForName（std :: __ 1 :: basic_string，std :: __ 1 :: allocator＆gt;＆amp;）
  ＃2 0x00000111a06891在addSoundToRendererBank中   ......

Answer 1

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

Native Plugin Null Exception OSX

1 个答案: