如何查看WinDbg中的.NET併發集合？

Question

有沒有什麼有效的方法來查看像ConcurrentQueue，ConcurrentDictionary，...，BlockingCollection等併發集合的內容？

有一個很好的extension netext，但是這可以轉儲只老&好Dictionary<..>和Hashtable。

老實說，我很驚訝，我沒有找到任何支持，因爲通過水桶，尾部&負責人在實例是有意義的緩慢的做法。

Answer 1

SOSEX'!mdt命令似乎相當確定的，如果你有一個支持DML一個WinDbg的版本，因爲你就可以點擊鏈接以顯示和擴大陣列

ConcurrentQueue（注意m_array是一個可點擊的鏈接）：

0:000> !mdt 000007fe959f4770 0000000002614660 -r:5 
0000000002614660 (System.Collections.Concurrent.ConcurrentQueue`1[[System.String, mscorlib]]) 
    m_head:0000000002614690 (System.Collections.Concurrent.ConcurrentQueue`1+Segment[[System.String, mscorlib]]) 
     m_array:00000000026146d0 (System.String[], Elements: 32) 
     m_state:00000000026147e8 (System.Collections.Concurrent.VolatileBool[], Elements: 32, ElementMT=000007fef41022d8) 
     m_next:NULL (System.Collections.Concurrent.ConcurrentQueue`1+Segment[[System.__Canon, mscorlib]]) 
     m_index:0x0 (System.Int64) 
     m_low:0x0 (System.Int32) 
     m_high:0x9 (System.Int32) 
     m_source:0000000002614660 (System.Collections.Concurrent.ConcurrentQueue`1[[System.String, mscorlib]]) 
      <RECURSIVE> 
    m_tail:0000000002614690 (System.Collections.Concurrent.ConcurrentQueue`1+Segment[[System.String, mscorlib]]) 
     m_array:00000000026146d0 (System.String[], Elements: 32) 
     m_state:00000000026147e8 (System.Collections.Concurrent.VolatileBool[], Elements: 32, ElementMT=000007fef41022d8) 
     m_next:NULL (System.Collections.Concurrent.ConcurrentQueue`1+Segment[[System.__Canon, mscorlib]]) 
     m_index:0x0 (System.Int64) 
     m_low:0x0 (System.Int32) 
     m_high:0x9 (System.Int32) 
     m_source:0000000002614660 (System.Collections.Concurrent.ConcurrentQueue`1[[System.String, mscorlib]]) 
      <RECURSIVE> 
    m_serializationArray:NULL (System.__Canon[]) 
    m_numSnapshotTakers:0x0 (System.Int32) 

0:000> !mdt 00000000026146d0 
00000000026146d0 (System.String[], Elements: 32) 
expand all 32 items          <--- DML Link 

0:000> !mdt -e:2 00000000026146d0 
00000000026146d0 (System.String[], Elements: 32) 
[0] 0000000002617508 "Hello WinDbg 0" 
[1] 0000000002617670 "Hello WinDbg 1" 
[2] 00000000026177d8 "Hello WinDbg 2" 
[3] 0000000002617940 "Hello WinDbg 3" 
[4] 0000000002617aa8 "Hello WinDbg 4" 
[5] 0000000002617c10 "Hello WinDbg 5" 
[6] 0000000002617d78 "Hello WinDbg 6" 
[7] 0000000002617ee0 "Hello WinDbg 7" 
[8] 0000000002618048 "Hello WinDbg 8" 
[9] 00000000026181b0 "Hello WinDbg 9" 

ConcurrentDictionary（注意m_buckets是一個可點擊的鏈接）

0:000> !mdt 0000000002614820 -r:6 
0000000002614820 (System.Collections.Concurrent.ConcurrentDictionary`2[[System.String, mscorlib],[System.String, mscorlib]]) 
    m_tables:0000000002614eb0 (System.Collections.Concurrent.ConcurrentDictionary`2+Tables[[System.String, mscorlib],[System.String, mscorlib]]) 
     m_buckets:0000000002614d98 (System.Collections.Concurrent.ConcurrentDictionary`2+Node[[System.String, mscorlib],[System.String, mscorlib]][], Elements: 32) 
     m_locks:00000000026148e8 (System.Object[], Elements: 32) 
     m_countPerLock:0000000002614d00 (System.Int32[], Elements: 32) 
     m_comparer:00000000026148d0 (System.Collections.Generic.GenericEqualityComparer`1[[System.String, mscorlib]]) 
    m_comparer:NULL (System.Collections.Generic.IEqualityComparer`1[[System.__Canon, mscorlib]]) 
    m_growLockArray:true (System.Boolean) 
    m_keyRehashCount:0x0 (System.Int32) 
    m_budget:0x1 (System.Int32) 
    m_serializationArray:NULL (System.Collections.Generic.KeyValuePair`2[[System.__Canon, mscorlib],[System.__Canon, mscorlib]][]) 
    m_serializationConcurrencyLevel:0x0 (System.Int32) 
    m_serializationCapacity:0x0 (System.Int32) 

0:000> !mdt 0000000002614d98 
0000000002614d98 (System.Collections.Concurrent.ConcurrentDictionary`2+Node[[System.String, mscorlib],[System.String, mscorlib]][], Elements: 32) 
expand all 32 items          <--- DML Link 

0:000> !mdt -e:2 0000000002614d98 
0000000002614d98 (System.Collections.Concurrent.ConcurrentDictionary`2+Node[[System.String, mscorlib],[System.String, mscorlib]][], Elements: 32) 
[...] 
[18] 0000000002618148 (System.Collections.Concurrent.ConcurrentDictionary`2+Node[[System.String, mscorlib],[System.String, mscorlib]]) 
    m_key:00000000026180b8 (System.String) Length=7, String="Hello 8" 
    m_value:0000000002618118 (System.String) Length=8, String="WinDbg 8" 
    m_next:NULL (System.Collections.Concurrent.ConcurrentDictionary`2+Node[[System.__Canon, mscorlib],[System.__Canon, mscorlib]]) 
    m_hashcode:0xd0fe55d2 (System.Int32) 
[19] 00000000026182b0 (System.Collections.Concurrent.ConcurrentDictionary`2+Node[[System.String, mscorlib],[System.String, mscorlib]]) 
    m_key:0000000002618220 (System.String) Length=7, String="Hello 9" 
    m_value:0000000002618280 (System.String) Length=8, String="WinDbg 9" 
    m_next:NULL (System.Collections.Concurrent.ConcurrentDictionary`2+Node[[System.__Canon, mscorlib],[System.__Canon, mscorlib]]) 
    m_hashcode:0xd0fe55d3 (System.Int32)