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Refactor Ledger and LedgerEntrySet:

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Member functions and free functions on Ledger and LedgerEntrySet are
rewritten in terms of new abstract interfaces `BasicView` and `View`,
representing the set of non-decomposable primitives necessary to read
and write state map items in a ledger, and to overlay a discardable
view onto a Ledger that can calculate metadata during transaction
processing. const-correctness is enforced through the parameter and
return types.

The MetaView now supports multi-level stacking: A MetaView can be
stacked on top of either a Ledger or another MetaView, up to any
number of levels.

The getSLEi member function is removed. The CachedView wrapper
replaces it, wrapping a View such that any function called with a
CachedView will go through the SLECache.

* Add BasicView, View, CachedView
* Rename LedgerEntrySet to MetaView
* Factor out free functions
* Consolidate free functions in ViewAPI
* Remove unused class members and free functions
This commit is contained in:
Vinnie Falco
2015-06-13 20:33:47 -07:00
parent 7d329570f4
commit d468deee12
115 changed files with 5530 additions and 4521 deletions
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8
src/ripple/app/paths/PathRequest.cpp
View File

@@ -480,7 +480,7 @@ Json::Value PathRequest::doUpdate (RippleLineCache::ref cache, bool fast)
if (valid)
{
LedgerEntrySet lesSandbox(
MetaView sandbox(
cache->getLedger(), tapNONE);
auto& sourceAccount = !isXRP (currIssuer.account)
? currIssuer.account
@@ -493,7 +493,7 @@ Json::Value PathRequest::doUpdate (RippleLineCache::ref cache, bool fast)
m_journal.debug << iIdentifier
<< " Paths found, calling rippleCalc";
auto rc = path::RippleCalc::rippleCalculate (
lesSandbox,
sandbox,
saMaxAmount,
saDstAmount,
raDstAccount.getAccountID (),
@@ -506,9 +506,9 @@ Json::Value PathRequest::doUpdate (RippleLineCache::ref cache, bool fast)
m_journal.debug
<< iIdentifier << " Trying with an extra path element";
spsPaths.push_back (fullLiquidityPath);
reconstruct(lesSandbox, cache->getLedger (), tapNONE);
reconstruct(sandbox, cache->getLedger (), tapNONE);
rc = path::RippleCalc::rippleCalculate (
lesSandbox,
sandbox,
saMaxAmount,
saDstAmount,
raDstAccount.getAccountID (),