AcceptedLedger::AcceptedLedger (Ledger::ref ledger) : mLedger (ledger)
{
SHAMap& txSet = *ledger->peekTransactionMap ();
for (SHAMapItem::pointer item = txSet.peekFirstItem (); item;
item = txSet.peekNextItem (item->getTag ()))
{
SerializerIterator sit (item->peekSerializer ());
insert (std::make_shared<AcceptedLedgerTx> (ledger, std::ref (sit)));
}
}
static bool confuseMap (SHAMap& map, int count)
{
// add a bunch of random states to a map, then remove them
// map should be the same
uint256 beforeHash = map.getHash ();
std::list<uint256> items;
for (int i = 0; i < count; ++i)
{
SHAMapItem::pointer item = makeRandomAS ();
items.push_back (item->getTag ());
if (!map.addItem (*item, false, false))
{
WriteLog (lsFATAL, SHAMap) << "Unable to add item to map";
return false;
}
}
for (std::list<uint256>::iterator it = items.begin (); it != items.end (); ++it)
{
if (!map.delItem (*it))
{
WriteLog (lsFATAL, SHAMap) << "Unable to remove item from map";
return false;
}
}
if (beforeHash != map.getHash ())
{
WriteLog (lsFATAL, SHAMap) << "Hashes do not match";
return false;
}
return true;
}
// Get state nodes from a ledger
// Inputs:
// limit: integer, maximum number of entries
// marker: opaque, resume point
// binary: boolean, format
// Outputs:
// ledger_hash: chosen ledger's hash
// ledger_index: chosen ledger's index
// state: array of state nodes
// marker: resume point, if any
Json::Value doLedgerData (RPC::Context& context)
{
context.lock_.unlock ();
int const BINARY_PAGE_LENGTH = 256;
int const JSON_PAGE_LENGTH = 2048;
Ledger::pointer lpLedger;
Json::Value jvResult = RPC::lookupLedger (context.params_, lpLedger, context.netOps_);
if (!lpLedger)
return jvResult;
uint256 resumePoint;
if (context.params_.isMember ("marker"))
{
Json::Value const& jMarker = context.params_["marker"];
if (!jMarker.isString ())
return RPC::expected_field_error ("marker", "valid");
if (!resumePoint.SetHex (jMarker.asString ()))
return RPC::expected_field_error ("marker", "valid");
}
bool isBinary = false;
if (context.params_.isMember ("binary"))
{
Json::Value const& jBinary = context.params_["binary"];
if (!jBinary.isBool ())
return RPC::expected_field_error ("binary", "bool");
isBinary = jBinary.asBool ();
}
int limit = -1;
int maxLimit = isBinary ? BINARY_PAGE_LENGTH : JSON_PAGE_LENGTH;
if (context.params_.isMember ("limit"))
{
Json::Value const& jLimit = context.params_["limit"];
if (!jLimit.isIntegral ())
return RPC::expected_field_error ("limit", "integer");
limit = jLimit.asInt ();
}
if ((limit < 0) || ((limit > maxLimit) && (context.role_ != Config::ADMIN)))
limit = maxLimit;
Json::Value jvReply = Json::objectValue;
jvReply["ledger_hash"] = to_string (lpLedger->getHash());
jvReply["ledger_index"] = beast::lexicalCastThrow <std::string> (lpLedger->getLedgerSeq ());
Json::Value& nodes = (jvReply["state"] = Json::arrayValue);
SHAMap& map = *(lpLedger->peekAccountStateMap ());
for (;;)
{
SHAMapItem::pointer item = map.peekNextItem (resumePoint);
if (!item)
break;
resumePoint = item->getTag();
if (limit-- <= 0)
{
--resumePoint;
jvReply["marker"] = to_string (resumePoint);
break;
}
if (isBinary)
{
Json::Value& entry = nodes.append (Json::objectValue);
entry["data"] = strHex (item->peekData().begin(), item->peekData().size());
entry["index"] = to_string (item->getTag ());
}
else
{
SLE sle (item->peekSerializer(), item->getTag ());
Json::Value& entry = nodes.append (sle.getJson (0));
entry["index"] = to_string (item->getTag ());
}
}
return jvReply;
}