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added method to serialise/deserialise groups to/from memory and export of GxsIdentities to memory chunk in radix format

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This commit is contained in:
csoler 2017-04-08 19:07:33 +02:00
parent 4067c95761
commit 4f5da86aca
5 changed files with 175 additions and 7 deletions
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52
libretroshare/src/gxs/rsgenexchange.cc
View file

@ -1273,6 +1273,58 @@ bool RsGenExchange::getMsgRelatedMeta(const uint32_t &token, GxsMsgRelatedMetaMa
return ok;
}
bool RsGenExchange::getSerializedGroupData(const uint32_t &token, RsGxsGroupId& id,unsigned char *& data,uint32_t& size)
{
RS_STACK_MUTEX(mGenMtx) ;
std::list<RsNxsGrp*> nxsGrps;
if(!mDataAccess->getGroupData(token, nxsGrps))
return false ;
if(nxsGrps.size() != 1)
{
std::cerr << "(EE) getSerializedGroupData() got multiple groups in single request. This is unexpected." << std::endl;
for(std::list<RsNxsGrp*>::const_iterator it(nxsGrps.begin());it!=nxsGrps.end();++it)
delete *it ;
return false ;
}
RsNxsGrp *nxs_grp = *(nxsGrps.begin());
size = nxs_grp->serial_size() ;
id = nxs_grp->metaData->mGroupId ;
if(size > 1024*1024 || NULL==(data = (unsigned char *)rs_malloc(size)))
{
std::cerr << "(EE) getSerializedGroupData() cannot allocate mem chunk of size " << size << ". Too big, or no room." << std::endl;
delete nxs_grp ;
return false ;
}
return nxs_grp->serialise(data,size) ;
}
bool RsGenExchange::deserializeGroupData(unsigned char *data,uint32_t size)
{
RS_STACK_MUTEX(mGenMtx) ;
RsItem *item = mSerialiser->deserialise(data, &size);
RsNxsGrp *nxs_grp = dynamic_cast<RsNxsGrp*>(item) ;
if(item == NULL)
{
std::cerr << "(EE) RsGenExchange::deserializeGroupData(): cannot deserialise this data. Something's wrong." << std::endl;
delete item ;
return false ;
}
mReceivedGrps.push_back( GxsPendingItem<RsNxsGrp*, RsGxsGroupId>(nxs_grp, nxs_grp->metaData->mGroupId,time(NULL)) );
return true ;
}
bool RsGenExchange::getGroupData(const uint32_t &token, std::vector<RsGxsGrpItem *>& grpItem)
{

14
libretroshare/src/gxs/rsgenexchange.h
View file

@ -288,6 +288,20 @@ protected:
*/
bool getGroupData(const uint32_t &token, std::vector<RsGxsGrpItem*>& grpItem);
/*!
* \brief getSerializedGroupData
* Retrieves the complete group data serialized into a chunk of memory. This can be useful to
* transfer a full group from one machine to another.
*
* \param token token previously obtained from cache request
* \param data memory chunk allocated (using malloc)
* \param size size of the memory chunk.
* \return
*/
bool getSerializedGroupData(const uint32_t &token, RsGxsGroupId &id, unsigned char *& data, uint32_t& size);
bool deserializeGroupData(unsigned char *data, uint32_t size);
template<class GrpType>
bool getGroupDataT(const uint32_t &token, std::vector<GrpType*>& grpItem)
{