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Eliminate spurious SHAMap::getFetchPack failure (RIPD-379)

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Howard Hinnant
2014-07-16 15:35:44 -04:00
committed by Vinnie Falco
parent 1ce0f94638
commit 28898031f0
1 changed files with 7 additions and 9 deletions
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16
src/ripple/module/app/shamap/SHAMapSync.cpp
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@@ -637,19 +637,17 @@ static void addFPtoList (std::list<SHAMap::fetchPackEntry_t>& list, const uint25
void SHAMap::getFetchPack (SHAMap* have, bool includeLeaves, int max,
std::function<void (const uint256&, const Blob&)> func)
{
ScopedReadLockType ul1 (mLock), ul2;
ScopedReadLockType ul1 (mLock, boost::defer_lock);
ScopedReadLockType ul2;
if (have)
{
ul2 = std::move (ScopedReadLockType (have->mLock, boost::try_to_lock));
if (! ul2.owns_lock ())
{
WriteLog (lsINFO, SHAMap) << "Unable to create pack due to lock";
return;
}
assert(this != have);
ul2 = ScopedReadLockType (have->mLock, boost::defer_lock);
std::lock(ul1, ul2);
}
else
ul1.lock();
if (root->getNodeHash ().isZero ())
return;