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Metadata structures for deletion of unfunded offers.

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This commit is contained in:
JoelKatz
2012-07-25 18:40:08 -07:00
parent de6ef42baf
commit b575e72093
2 changed files with 29 additions and 0 deletions
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18
src/TransactionMeta.cpp
View File

@@ -89,6 +89,22 @@ Json::Value TMNEBalance::getJson(int p) const
return ret;
}
void TMNEUnfunded::addRaw(Serializer& sit) const
{
sit.add8(mType);
}
Json::Value TMNEUnfunded::getJson(int) const
{
return Json::Value("delete_unfunded");
}
int TMNEUnfunded::compare(const TransactionMetaNodeEntry&) const
{
assert(false); // Can't be two deletes for same node
return 0;
}
TransactionMetaNode::TransactionMetaNode(const uint256& node, SerializerIterator& sit) : mNode(node)
{
mNode = sit.get256();
@@ -100,6 +116,8 @@ TransactionMetaNode::TransactionMetaNode(const uint256& node, SerializerIterator
type = sit.get8();
if (type == TransactionMetaNodeEntry::TMNChangedBalance)
mEntries.insert(boost::shared_ptr<TransactionMetaNodeEntry>(new TMNEBalance(sit)));
if (type == TransactionMetaNodeEntry::TMNDeleteUnfunded)
mEntries.insert(boost::shared_ptr<TransactionMetaNodeEntry>(new TMNEUnfunded()));
else if (type != TransactionMetaNodeEntry::TMNEndOfMetadata)
throw std::runtime_error("Unparseable metadata");
} while (type != TransactionMetaNodeEntry::TMNEndOfMetadata);

11
src/TransactionMeta.h
View File

@@ -21,6 +21,7 @@ public:
static const int TMNEndOfMetadata = 0;
static const int TMNChangedBalance = 1;
static const int TMNDeleteUnfunded = 2;
int mType;
TransactionMetaNodeEntry(int type) : mType(type) { ; }
@@ -68,6 +69,15 @@ public:
virtual int compare(const TransactionMetaNodeEntry&) const;
};
class TMNEUnfunded : public TransactionMetaNodeEntry
{ // node was deleted because it was unfunded
public:
TMNEUnfunded() : TransactionMetaNodeEntry(TMNDeleteUnfunded) { ; }
virtual void addRaw(Serializer&) const;
virtual Json::Value getJson(int) const;
virtual int compare(const TransactionMetaNodeEntry&) const;
};
class TransactionMetaNode
{ // a node that has been affected by a transaction
public:
@@ -118,6 +128,7 @@ public:
void threadNode(const uint256& node, const uint256& previousTransaction, uint32 previousLedger);
bool signedBy(const uint256& node, const STAmount& fee);
bool deleteUnfunded(const uint256& node);
bool adjustBalance(const uint256& node, unsigned flags, const STAmount &amount);
bool adjustBalances(const uint256& node, unsigned flags, const STAmount &firstAmt, const STAmount &secondAmt);
};