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Cleanups and optimizations.

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This commit is contained in:
JoelKatz
2012-02-07 19:48:10 -08:00
parent 43c70696ce
commit bb5f70cd73
3 changed files with 11 additions and 7 deletions
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4
SHAMap.h
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@@ -72,9 +72,9 @@ class hash_SMN
{ // These must be randomized for release { // These must be randomized for release
public: public:
std::size_t operator() (const SHAMapNode& mn) const std::size_t operator() (const SHAMapNode& mn) const
{ return mn.getDepth() ^ static_cast<std::size_t>(mn.getNodeID().PeekAt(0)); } { return mn.getDepth() ^ static_cast<std::size_t>(mn.getNodeID().GetAt(0)); }
std::size_t operator() (const uint256& u) const std::size_t operator() (const uint256& u) const
{ return static_cast<std::size_t>(u.PeekAt(0)); } { return static_cast<std::size_t>(u.GetAt(0)); }
}; };
class SHAMapItem class SHAMapItem

7
SHAMapNodes.cpp
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@@ -99,10 +99,9 @@ SHAMapNode SHAMapNode::getChildNodeID(int m) const
{ // This can be optimized to avoid the << if needed { // This can be optimized to avoid the << if needed
assert((m>=0) && (m<16)); assert((m>=0) && (m<16));
uint256 branch=m; uint256 child(mNodeID);
branch<<=mDepth*4; child.PeekAt(mDepth/8) |= m << (4*(mDepth%8));
return SHAMapNode(mDepth+1, child);
return SHAMapNode(mDepth+1, mNodeID | branch);
} }
int SHAMapNode::selectBranch(const uint256& hash) const int SHAMapNode::selectBranch(const uint256& hash) const

7
uint256.h
View File

@@ -303,7 +303,12 @@ public:
return (!(a == b)); return (!(a == b));
} }
unsigned int PeekAt(int j) const unsigned int GetAt(int j) const
{
return pn[j];
}
unsigned int& PeekAt(int j)
{ {
return pn[j]; return pn[j];
} }