hxopwaveudpsock.cpp
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上传日期:2007-06-06
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文件大小:15k
- /* ***** BEGIN LICENSE BLOCK *****
- * Version: RCSL 1.0/RPSL 1.0
- *
- * Portions Copyright (c) 1995-2002 RealNetworks, Inc. All Rights Reserved.
- *
- * The contents of this file, and the files included with this file, are
- * subject to the current version of the RealNetworks Public Source License
- * Version 1.0 (the "RPSL") available at
- * http://www.helixcommunity.org/content/rpsl unless you have licensed
- * the file under the RealNetworks Community Source License Version 1.0
- * (the "RCSL") available at http://www.helixcommunity.org/content/rcsl,
- * in which case the RCSL will apply. You may also obtain the license terms
- * directly from RealNetworks. You may not use this file except in
- * compliance with the RPSL or, if you have a valid RCSL with RealNetworks
- * applicable to this file, the RCSL. Please see the applicable RPSL or
- * RCSL for the rights, obligations and limitations governing use of the
- * contents of the file.
- *
- * This file is part of the Helix DNA Technology. RealNetworks is the
- * developer of the Original Code and owns the copyrights in the portions
- * it created.
- *
- * This file, and the files included with this file, is distributed and made
- * available on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
- * EXPRESS OR IMPLIED, AND REALNETWORKS HEREBY DISCLAIMS ALL SUCH WARRANTIES,
- * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, FITNESS
- * FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
- *
- * Technology Compatibility Kit Test Suite(s) Location:
- * http://www.helixcommunity.org/content/tck
- *
- * Contributor(s):
- *
- * ***** END LICENSE BLOCK ***** */
- #include "hxopwaveudpsock.h"
- #include "debug.h"
- #include "hxassert.h"
- #include "ihxpckts.h"
- #include "smartptr.h"
- #define D_UDPSOCKET 0x10000000
- HXOpwaveUDPSocket::HXOpwaveUDPSocket(IHXCommonClassFactory* pCCF)
- : OpSocket(kUDP)
- , m_lRefCount(0)
- , m_pResponse(0)
- , m_pCCF(0)
- , m_state(udpNotInitialized)
- , m_ulRemoteAddr(0)
- , m_nRemotePort(0)
- , m_nLocalPort(0)
- , m_ulLocalAddr(0)
- , m_ulReadSize(0)
- , m_pWriteBuffer(NULL)
- , m_ulBytesLeftToWrite(0)
- , m_pReadBuffer(NULL)
- {
-
- if (pCCF)
- {
- m_pCCF = pCCF;
- m_pCCF->AddRef();
- }
- }
- HXOpwaveUDPSocket::~HXOpwaveUDPSocket()
- {
-
- DPRINTF(D_UDPSOCKET, ("HXOpwaveUDPSocket::~HXOpwaveUDPSocket()n"));
-
- CloseSocket(HXR_OK);
- HX_RELEASE(m_pResponse);
- HX_RELEASE(m_pCCF);
- }
- /*
- * IUnknown methods
- */
- STDMETHODIMP
- HXOpwaveUDPSocket::QueryInterface(THIS_
- REFIID riid,
- void** ppvObj)
- {
-
- DPRINTF(D_UDPSOCKET, ("HXOpwaveUDPSocket::QueryInterface()n"));
-
- if (IsEqualIID(riid, IID_IHXUDPSocket))
- {
-
- AddRef();
- *ppvObj = (IHXUDPSocket*)this;
- return HXR_OK;
- }
- else if (IsEqualIID(riid, IID_IHXSetSocketOption))
- {
- AddRef();
- *ppvObj = (IHXSetSocketOption*)this;
- return HXR_OK;
- }
- else if (IsEqualIID(riid, IID_IUnknown))
- {
- AddRef();
- *ppvObj = (IUnknown*)(IHXUDPSocket*)this;
- return HXR_OK;
- }
-
- *ppvObj = NULL;
- return HXR_NOINTERFACE;
- }
- STDMETHODIMP_(ULONG32)
- HXOpwaveUDPSocket::AddRef(THIS)
- {
- return InterlockedIncrement(&m_lRefCount);
- }
- STDMETHODIMP_(ULONG32)
- HXOpwaveUDPSocket::Release(THIS)
- {
- if (InterlockedDecrement(&m_lRefCount) > 0)
- {
- return m_lRefCount;
- }
-
- delete this;
- return 0;
- }
- /*
- * IHXUDPSocket methods
- *
- * Network addresses and ports are in native byte order
- *
- */
- STDMETHODIMP
- HXOpwaveUDPSocket::Init(THIS_
- ULONG32 ulAddr,
- UINT16 nPort,
- IHXUDPResponse* pUDPResponse)
- {
- DPRINTF(D_UDPSOCKET, ("HXOpwaveUDPSocket::Init(%08lx, %u)n",
- ulAddr, nPort));
-
- HX_RESULT res = HXR_OK;
- if (m_state != udpNotInitialized)
- {
- return res;
- }
- if (pUDPResponse)
- {
- HX_RELEASE(m_pResponse);
- m_pResponse = pUDPResponse;
- m_pResponse->AddRef();
- }
- m_ulRemoteAddr = ulAddr;
- m_nRemotePort = nPort;
-
- if (m_ulRemoteAddr != 0 && m_nRemotePort != 0)
- {
- m_state = udpInitialized;
- if (m_state != udpBound)
- {
-
- /// Openwave sdk does bind inside connect
- /// we do binding here due to when Bind is called, the Init is not called
- /// with valid m_nRemotePort and m_ulRemoteAddr.
- connect(m_nLocalPort, m_nRemotePort, m_ulRemoteAddr);
-
- //OpDPRINTF("UDP::Init: this=%p, ulLocalAddr=%d, localport=%d, remotePort=%d, remoteaddr=%dn", this,
- // m_ulLocalAddr,m_nLocalPort, m_nRemotePort, m_ulRemoteAddr);
- m_state = udpBound;
- m_bWritable = FALSE;
- m_bReadable = FALSE;
- }
- }
- return res;
- }
- STDMETHODIMP
- HXOpwaveUDPSocket::Bind(THIS_
- UINT32 ulLocalAddr,
- UINT16 nPort)
- {
-
- DPRINTF(D_UDPSOCKET, ("HXOpwaveUDPSocket::Bind(%08lx, %u)n", ulLocalAddr, nPort));
-
- /// Until OpSocket implement the DNS layer, this is nothting but cache address and
- /// port values
- /// OpSocket has bind function built into connect
-
- HX_RESULT res = HXR_OK;
-
- m_ulLocalAddr = ulLocalAddr;
- m_nLocalPort = nPort;
- if (m_state == udpInitialized && m_state != udpBound && m_nLocalPort != 0)
- {
- /// Only do binding if it is initialized
- /// Openwave sdk does bind inside connect
- connect(m_nLocalPort, m_nRemotePort, m_ulRemoteAddr);
-
- //OpDPRINTF("UDP::Bind: this=%p, ulLocalAddr=%d, localport=%d, remotePort=%d, remoteaddr=%dn", this,
- // m_ulLocalAddr,m_nLocalPort, m_nRemotePort, m_ulRemoteAddr);
- m_state = udpBound;
- m_bWritable = FALSE;
- m_bReadable = FALSE;
- }
- return res;
- }
- STDMETHODIMP
- HXOpwaveUDPSocket::Read(THIS_
- UINT16 Size)
- {
-
- DPRINTF(D_UDPSOCKET, ("HXOpwaveUDPSocket::Read(%u)n", Size));
-
- HX_RESULT res = HXR_OK;
- m_ulReadSize = Size;
- //OpDPRINTF("UDP:Read: this=%p, size=%d, bread=%d, state=%d, bwrite=%dn", this, Size, m_bReadable, m_state, m_bWritable);
- if (m_state == udpBound)
- {
- if (m_bReadable && m_ulReadSize)
- {
- /// avoid recursion that might occur because
- /// OnReadDone call in DoRead invoke ::Read again
- m_bReadable = FALSE;
- res = DoRead();
- }
- }
- return res;
-
- }
- /// Work horse for reading. As long as we are initilized once
- /// to read, we always try to read something of the socket.
- HX_RESULT
- HXOpwaveUDPSocket::DoRead()
- {
- /// Create a new IHXBuffer for every read
- HX_RESULT res = HXR_FAIL;
- IHXBuffer* pReadBuffer = NULL;
- res = m_pCCF->CreateInstance(IID_IHXBuffer, (void**)&pReadBuffer);
- if (SUCCEEDED(res))
- {
- res = pReadBuffer->SetSize(m_ulReadSize);
-
- UCHAR* pData = pReadBuffer->GetBuffer();
- int nRead = read(pData, m_ulReadSize);
-
- //OpDPRINTF("UDP::DoRead: this=%p, read=%d, askfor=%dn", this, nRead, m_ulReadSize);
- if (nRead > 0)
- {
- pReadBuffer->SetSize(nRead);
- m_pReadBuffer = pReadBuffer;
- // Don't ADDREF, m_pReadBuffer will be released in the callback OnReadDone
-
- if (m_pResponse)
- {
- /// still to be found that address and port arguments
- /// should be put here (remote or local)
- m_pResponse->ReadDone(res, m_pReadBuffer,
- m_ulRemoteAddr, m_nRemotePort);
- }
-
- }
- }
- HX_RELEASE(m_pReadBuffer);
- return res;
- }
- STDMETHODIMP
- HXOpwaveUDPSocket::Write(THIS_
- IHXBuffer* pBuffer)
- {
-
- DPRINTF(D_UDPSOCKET, ("HXOpwaveUDPSocket::Write()n"));
- HX_RESULT res = HXR_OK;
- if (!pBuffer)
- {
- res = HXR_INVALID_PARAMETER;
- }
-
- //OpDPRINTF("UDP:Write: this=%p, lwsize=%d, bread=%d, newwritesize=%d, bwrite=%dn", this, m_ulBytesLeftToWrite, m_bReadable, pBuffer->GetSize(), m_bWritable);
- if (SUCCEEDED(res) && (m_state == udpBound))
- {
- /// First add to our list
- pBuffer->AddRef();
- m_writeList.AddTail(pBuffer);
- /// decide if we need to do a write
- /// because last time when it is ready to write, there is no data
- /// to be written.
- if (m_bWritable)
- {
- if (!m_pWriteBuffer)
- {
- m_pWriteBuffer = (IHXBuffer*)m_writeList.RemoveHead();
- m_ulBytesLeftToWrite = m_pWriteBuffer->GetSize();
- }
- res =DoWrite();
- if (SUCCEEDED(res))
- {
- m_bWritable = FALSE;
- }
- }
- }
- return res;
- }
- /// This is working method to do actual write from
- /// the m_pWriteBuffer which is guranteed to have data to be written
- /// and the socket is ready to accept data
- HX_RESULT HXOpwaveUDPSocket::DoWrite()
- {
- HX_RESULT res = HXR_OK;
-
- UCHAR* pBufData = m_pWriteBuffer->GetBuffer();
- size_t ulActualWritten = write(pBufData, m_ulBytesLeftToWrite);
-
- HX_ASSERT(m_ulBytesLeftToWrite >= ulActualWritten);
-
- //OpDPRINTF("UDP::DoWrite, this=%p, written%d, write=%dnn",this, ulActualWritten, m_ulBytesLeftToWrite);
- m_ulBytesLeftToWrite -= ulActualWritten;
- if (m_ulBytesLeftToWrite > 0)
- {
- // more left in this m_pWriteBuffer to be written out
- UCHAR* pLeftData = new UCHAR[m_ulBytesLeftToWrite];
- if (!pLeftData)
- {
- res = HXR_OUTOFMEMORY;
- OnWriteDone(res);
- return res;
- }
-
- memcpy(pLeftData, pBufData+ulActualWritten, m_ulBytesLeftToWrite);
- m_pWriteBuffer->Set(pLeftData, m_ulBytesLeftToWrite);
- delete pLeftData;
- }
- return res;
- }
- STDMETHODIMP
- HXOpwaveUDPSocket::GetLocalPort(THIS_
- REF(UINT16) port)
- {
-
- DPRINTF(D_UDPSOCKET, ("HXOpwaveUDPSocket::GetLocalPort()n"));
-
- HX_RESULT res = HXR_OK;
- port = m_nLocalPort;
- return res;
- }
- STDMETHODIMP
- HXOpwaveUDPSocket::SetOption(THIS_
- HX_SOCKET_OPTION option,
- UINT32 ulValue)
- {
-
- DPRINTF(D_UDPSOCKET, ("HXOpwaveUDPSocket::SetOption(%d, %lu)n", option, ulValue));
- HX_RESULT res = HXR_FAILED;
-
- if (m_state == udpNotInitialized)
- {
- switch(option)
- {
- case HX_SOCKOPT_REUSE_ADDR:
- case HX_SOCKOPT_REUSE_PORT:
- //// OpSocket doesn't support set socket options
- {
- res = HXR_NOTIMPL;
- }
- break;
- case HX_SOCKOPT_BROADCAST:
- case HX_SOCKOPT_SET_RECVBUF_SIZE:
- case HX_SOCKOPT_SET_SENDBUF_SIZE:
- case HX_SOCKOPT_MULTICAST_IF:
- res = HXR_UNEXPECTED;
- break;
- default:
- break;
- }
- }
-
- return res;
- }
- STDMETHODIMP
- HXOpwaveUDPSocket::WriteTo(THIS_ ULONG32 ulAddr, UINT16 nPort,
- IHXBuffer* pBuffer)
- {
- HX_RESULT res = HXR_OK;
- return res;
- }
- STDMETHODIMP
- HXOpwaveUDPSocket::JoinMulticastGroup(THIS_ ULONG32 ulMulticastAddr,
- ULONG32 ulInterfaceAddr)
- {
- HX_RESULT res = HXR_OK;
- return res;
- }
- STDMETHODIMP
- HXOpwaveUDPSocket::LeaveMulticastGroup (THIS_ ULONG32 ulMulticastAddr,
- ULONG32 ulInterfaceAddr)
- {
- HX_RESULT res = HXR_OK;
- return res;
- }
- void HXOpwaveUDPSocket::OnWriteDone(HX_RESULT status)
- {
-
- DPRINTF(D_UDPSOCKET, ("HXOpwaveUDPSocket::OnWriteDone(%ld)n", status));
- DECLARE_SMART_POINTER_UNKNOWN scopeRef((IHXUDPSocket*)this);
-
- if (status == HXR_OK)
- {
- HX_RELEASE(m_pWriteBuffer);
- if (m_writeList.GetCount() > 0)
- {
- m_pWriteBuffer = (IHXBuffer*)m_writeList.RemoveHead();
- m_ulBytesLeftToWrite = m_pWriteBuffer->GetSize();
- }
-
- }
- else
- {
- CloseSocket(status);
- }
- }
- void HXOpwaveUDPSocket::CloseSocket(HX_RESULT status)
- {
-
- DPRINTF(D_UDPSOCKET, ("HXOpwaveUDPSocket::CloseConnection(%ld)n", status));
-
- if (m_state != udpNotInitialized)
- {
- close(true);
- }
-
- // Clear the writer list
-
- while (m_writeList.GetCount() > 0)
- {
- // Release all the left unsent buffers in the list
- IHXBuffer* pBuffer = (IHXBuffer*)m_writeList.RemoveHead();
- HX_RELEASE(pBuffer);
- }
- m_state = udpNotInitialized;
-
- }
- void HXOpwaveUDPSocket::onReadable(OpSocketEvent *pSocketEvent)
- {
-
- HX_RESULT res = HXR_OK;
- //OpDPRINTF("UDP:onReadable: this=%p, mrsize=%d, bread=%d, state=%d, bwrite=%dn", this, m_ulReadSize, m_bReadable, m_state, m_bWritable);
-
- if (m_ulReadSize > 0)
- {
- /// avoid recursion that might occur because
- /// OnReadDone call in DoRead invoke ::Read again
- m_bReadable = FALSE;
- DoRead();
- }
- }
- void HXOpwaveUDPSocket::onWritable(OpSocketEvent *pSocketEvent)
- {
- HX_RESULT res = HXR_OK;
- m_bWritable = TRUE;
- //OpDPRINTF("UDP:onWritable: this=%p, mrsize=%d, bread=%d, lwsize=%d, bwrite=%dn", this, m_ulReadSize, m_bReadable, m_ulBytesLeftToWrite, m_bWritable);
-
-
- /// Normal write process
- /// Call OnWriteDone for handling the notification of last write
- if (m_ulBytesLeftToWrite == 0)
- {
- /// Notify last writing is completely done
- OnWriteDone(res);
- }
-
- /// Do the next writing
- if (m_pWriteBuffer && m_ulBytesLeftToWrite > 0)
- {
- if (DoWrite() == HXR_OK)
- {
- m_bWritable = FALSE;
- }
- }
- }
- void HXOpwaveUDPSocket::onException(OpSocketEvent *pSocketEvent)
- {
- static int num = 0;
- DPRINTF(D_UDPSOCKET, ("HXOpwaveUDPSocket::OnException(%ld)n", ++num));
- }