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Merge #9674: Always enforce strict lock ordering (try or not)

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618ee92 Further-enforce lockordering by enforcing directly after TRY_LOCKs (Matt Corallo)
2a962d4 Fixup style a bit by moving { to the same line as if statements (Matt Corallo)
8465631 Always enforce lock strict lock ordering (try or not) (Matt Corallo)
fd13eca Lock cs_vSend and cs_inventory in a consistent order even in TRY (Matt Corallo)
This commit is contained in:
Wladimir J. van der Laan
2017-02-08 14:46:35 +01:00
parent 6a55515a9b 618ee9249b
commit dd163f5788
2 changed files with 20 additions and 48 deletions
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18
src/net.cpp
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@@ -1093,20 +1093,18 @@ void CConnman::ThreadSocketHandler()
BOOST_FOREACH(CNode* pnode, vNodesDisconnectedCopy)
{
// wait until threads are done using it
if (pnode->GetRefCount() <= 0)
{
if (pnode->GetRefCount() <= 0) {
bool fDelete = false;
{
TRY_LOCK(pnode->cs_vSend, lockSend);
if (lockSend)
{
TRY_LOCK(pnode->cs_inventory, lockInv);
if (lockInv)
fDelete = true;
TRY_LOCK(pnode->cs_inventory, lockInv);
if (lockInv) {
TRY_LOCK(pnode->cs_vSend, lockSend);
if (lockSend) {
fDelete = true;
}
}
}
if (fDelete)
{
if (fDelete) {
vNodesDisconnected.remove(pnode);
DeleteNode(pnode);
}