ERROR_CODE CConnectivityAgentProxy::deallocateChannel(UInt32 channel_id)
{
LOG4CPLUS_TRACE_METHOD(logger, __PRETTY_FUNCTION__);
LOG4CPLUS_INFO(logger,
"CConnectivityAgentProxy::deallocateChannel(chID = "
+ convertIntegerToString(channel_id) + ")");
ERROR_CODE ret = ERR_NOTFOUND;
mRegistryMutex.lockWrite();
// Channel info will be saved in info and removed from registry here.
// In case of some errors, it will be restored in registry.
tChannelInfo info;
tChannelsRegistryMap::iterator iter = mChannelRegistry.find(channel_id);
if (iter == mChannelRegistry.end())
{
LOG4CPLUS_ERROR(logger,
"CConnectivityAgentProxy::deallocateChannel(chID = "
+ convertIntegerToString(channel_id) + ") => ERROR: Channel not found! ");
} else
{
ret = ERR_OK;
info = iter->second;
iter->second.mChannelBuffer.forgetData();
mChannelRegistry.erase(iter);
mChannelOnDeallocSet.insert(channel_id);
}
mRegistryMutex.unlockWrite();
if (ret != ERR_OK)
return ret;
CDataAccessor requestDA;
requestDA.setChannelID(channel_id);
requestDA.setOpCode(E_DEALLOCATE_CHANNEL);
UInt8* buf = new UInt8[requestDA.getObjectSize()];
requestDA.copyToRawArray(buf);
// response will be sent later as a separate request
UInt32 respSize = 0;
CError err = mpIpc->request(mMsgIdGen.next(), buf, requestDA.getObjectSize(), NULL, respSize);
delete[] buf;
if (!err.isNoError())
{
LOG4CPLUS_WARN(logger, static_cast<std::string>(err));
ret = ERR_FAIL;
} else
{
CDataAccessor responseDA;
mDeallocateRequestResultCond.lock();
{
LOG4CPLUS_INFO(logger,
"CConnectivityAgentProxy::deallocateChannel waiting for mLastRequestResultDA");
while (mDeallocateRequestResultMap.find(channel_id) == mDeallocateRequestResultMap.end())
{
LOG4CPLUS_INFO(logger, "before wait");
mDeallocateRequestResultCond.wait();
LOG4CPLUS_INFO(logger, "after wait");
}
responseDA = mDeallocateRequestResultMap[channel_id];
mDeallocateRequestResultMap.erase(channel_id);
}
mDeallocateRequestResultCond.unlock();
if (responseDA.getData())
{
if ((E_DEALLOCATE_CHANNEL_RESP == responseDA.getOpCode())
&& (channel_id == responseDA.getChannelID()))
{
UInt32 data = 0;
memcpy(&data, responseDA.getData(), sizeof(UInt32));
responseDA.resetAll();
ret = static_cast<ERROR_CODE>(data);
} else
{
LOG4CPLUS_ERROR(logger,
"CConnectivityAgentProxy::deallocateChannel() => ERROR: wrong response type("
+ convertIntegerToString(responseDA.getOpCode())
+ ") from Agent !!! ");
ret = ERR_WRONG_SEQUENCE;
}
} else
{
LOG4CPLUS_INFO(logger, "CConnectivityAgentProxy::deallocateChannel() => "
"channel already deleted form other side");
ret = ERR_OK;
}
}
if (ret != ERR_OK)
{
// something gone wrong, we need to restore information in registry
mRegistryMutex.lockWrite();
if (mChannelRegistry.find(channel_id) != mChannelRegistry.end())
{
LOG4CPLUS_WARN(logger, "CConnectivityAgentProxy::deallocateChannel: "
"something gone wrong and I'm unable to restore channel info - "
"there is a channel in registry with such id");
} else
{
mChannelRegistry[channel_id] = info;
info.mChannelBuffer.forgetData();
LOG4CPLUS_INFO(logger,
"CConnectivityAgentProxy::deallocateChannel:"
"unable to delete channel " + convertIntegerToString(channel_id)
+ ", so channel info is restored");
}
mRegistryMutex.unlockWrite();
}
mRegistryMutex.lockWrite();
mChannelOnDeallocSet.erase(channel_id);
mRegistryMutex.unlockWrite();
return ret;
}
ERROR_CODE CConnectivityAgentProxy::allocateChannel(TChannelPriority prio, UInt32 channel_id,
IChannelObserver* observer)
{
LOG4CPLUS_TRACE_METHOD(logger, __PRETTY_FUNCTION__);
LOG4CPLUS_INFO(logger,
"CConnectivityAgentProxy::allocateChannel(type = " + convertIntegerToString((int) prio)
+ ", id = " + convertIntegerToString(channel_id) + " ), this = "
+ convertIntegerToString((intptr_t) this));
ERROR_CODE ret = ERR_FAIL;
if ((channel_id > 0) && (channel_id <= 0xFFFF) && (NULL != observer))
{
mRegistryMutex.lockWrite();
bool channel_unknown = mChannelRegistry.find(channel_id) == mChannelRegistry.end();
mRegistryMutex.unlockWrite();
if (channel_unknown)
{
mAllocateRequestCond.lock();
bool channel_requested = mAllocateRequestMap.find(channel_id)
!= mAllocateRequestMap.end();
if (channel_requested)
{
ret = ERR_IN_PROGRESS;
channel_unknown = false;
LOG4CPLUS_WARN(logger,
"CConnectivityAgentProxy::allocateChannel() => ERROR: channel allocation in progress!");
} else
{
LOG4CPLUS_INFO(logger,
"CConnectivityAgentProxy::allocateChannel() => insert request");
mAllocateRequestMap.insert(
std::make_pair(channel_id,
AllocateRequestInfo(prio, observer, false, ERR_UNKNOWN)));
}
mAllocateRequestCond.unlock();
}
if (channel_unknown)
{
CDataAccessor requestDA;
requestDA.setChannelID(channel_id);
requestDA.setOpCode(E_ALLOCATE_CHANNEL);
UInt32 data = prio;
requestDA.setData(reinterpret_cast<UInt8 *>(&data), sizeof(UInt32));
UInt8* buf = new UInt8[requestDA.getObjectSize()];
requestDA.copyToRawArray(buf);
UInt8 respBuf[100];
UInt32 respSize = sizeof(respBuf);
CError err = mpIpc->request(mMsgIdGen.next(), buf, requestDA.getObjectSize(), respBuf,
respSize);
delete[] buf;
if (!err.isNoError())
{
LOG4CPLUS_WARN(logger, static_cast<std::string>(err));
ret = ERR_FAIL;
mAllocateRequestCond.lock();
mAllocateRequestMap.erase(channel_id);
mAllocateRequestCond.unlock();
LOG4CPLUS_WARN(logger,
"CConnectivityAgentProxy::allocateChannel() => ERROR: failed to send request");
} else
{
CDataAccessor responseDA;
if (respSize > 0)
{
responseDA = CDataAccessor(respBuf, respSize);
ret = static_cast<ERROR_CODE>(responseDA.getErrorCode());
mAllocateRequestCond.lock();
mAllocateRequestMap.erase(channel_id);
mAllocateRequestCond.unlock();
LOG4CPLUS_WARN(logger,
"CConnectivityAgentProxy::allocateChannel() => ERROR: got error response");
} else
{
mAllocateRequestCond.lock();
while (true)
{
tAllocateRequestMap::iterator it = mAllocateRequestMap.find(channel_id);
if (it == mAllocateRequestMap.end())
{
ret = ERR_FAIL;
LOG4CPLUS_WARN(logger,
"CConnectivityAgentProxy::allocateChannel() => ERROR: request was removed");
break;
}
AllocateRequestInfo & info = it->second;
if (info.mRequestDone)
{
LOG4CPLUS_INFO(logger,
"CConnectivityAgentProxy::allocateChannel() => request done");
ret = info.mResult;
mAllocateRequestMap.erase(it);
break;
}
LOG4CPLUS_INFO(logger,
"CConnectivityAgentProxy::allocateChannel() => before wait");
mAllocateRequestCond.wait();
LOG4CPLUS_INFO(logger,
"CConnectivityAgentProxy::allocateChannel() => after wait");
}
mAllocateRequestCond.unlock();
} // if response empty
} // if no ipc err
} else
{
LOG4CPLUS_ERROR(logger,
"CConnectivityAgentProxy::allocateChannel() => ERROR: channel already exists! ");
ret = ERR_NUMBER_BUSY;
}
}
return ret;
}