[Symbian] Useful Classes

1. Data Type
   
   • TInt, TInt8, TInt16, TInt32, TInt64
     
   • TUInt, TUInt8, TUInt16, TUInt32
   • TReal, TReal32, TReal64
   • TBool
   • TText, TText8 (unsigned char), TText16 (unsigned short)
   • TChar
   • TAny
     
2. Descriptor
   
   • TDes, TDesc
   • TBuf, TBufC
   • TPtr, TPtrC
   • HBufC
   • _LIT(xxx, "yyy") & _L("xxx")
     
   • xxx
     
3. Data Connectons
   
   • Arrays
     
     1. TFixedArray - Fixed array
     2. Descriptor Arrays
        
        • CDesC16ArrayFlat
        • CDesC16ArraySeg
        • CDesC8ArrayFlat
        • CDesC8ArraySeg
        • CDesCArrayFlat
        • CDesCArraySeg
        • CPtrC16Array
        • CPtrC8Array
        • CPtrCArray
     3. Dynamic Array
        
        • CArrayFixFlat
        • CArrayFixSeg
        • CArrayPtrFlat
        • CArrayPtrSeg
     4. RArray
     5. xxx
        
   • RPointerArray
     
   • TDblQueue - Double linked list
     
   • CCirBuf - Circular buffer of objects
     
4. Exception
   
   • TRAP & TRAPD
   • User::Leave
   • CleanupStack
     
5. Process & Thread
   
   • RProcess
   • RThread
     IPC (Inter Process Communication): RThread::WriteL & RThread::ReadL
     
   • RSemaphore
   • RCriticalSection
     
6. Active Object
   
   • CActive
   • TRequestStatus
7. Client/Server
   
   • Client Side
     
     • RSessionBase
   • Server Side
     
     • CServer -> CActive
     • CSession -> CSharableSession
     • RMessage
   • xxx
     
8. Network
   
   • BSD C Socket API
     
     • socket
     • connect
     • bind
     • send/recv
     • close
     • ...
   • Symbian OS Socket API (depends on insock.lib and esock.lib)
     
     • RSocket - Represent a single socket, like BSD C API 'socket'
       
     • RSocketServ
       
     • RHostResolver - Resolve host
       
     • TNetAddr - Network address
     • TNameEntry
       
     • RConnection - Select access point
       
     • xxx
       
   • xxx
     
9. xxx