flewkey/cuberite-2a
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Eliminate race condition in cRoot::FindAndDoWithPlayer

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Avoid a race condition where a player gets deleted during the FindAndDoWithPlayer callback by moving the callback into DoWithPlayer.
This commit is contained in:
worktycho 2015-04-24 12:45:44 +01:00
parent 0bfcd62556
commit 20593dcb35
1 changed files with 4 additions and 4 deletions
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8
src/Root.cpp
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@ -607,7 +607,7 @@ bool cRoot::FindAndDoWithPlayer(const AString & a_PlayerName, cPlayerListCallbac
size_t Rating = RateCompareString (m_PlayerName, a_pPlayer->GetName());
if ((Rating > 0) && (Rating >= m_BestRating))
{
m_BestMatch = a_pPlayer;
m_BestMatch = a_pPlayer->GetName();
if (Rating > m_BestRating)
{
m_NumMatches = 0;
@ -627,18 +627,18 @@ bool cRoot::FindAndDoWithPlayer(const AString & a_PlayerName, cPlayerListCallbac
m_BestRating(0),
m_NameLength(a_PlayerName.length()),
m_PlayerName(a_PlayerName),
m_BestMatch(nullptr),
m_BestMatch(),
m_NumMatches(0)
{}
cPlayer * m_BestMatch;
AString m_BestMatch;
unsigned m_NumMatches;
} Callback (a_PlayerName);
ForEachPlayer(Callback);
if (Callback.m_NumMatches == 1)
{
return a_Callback.Item(Callback.m_BestMatch);
return DoWithPlayer(Callback.m_BestMatch, a_Callback);
}
return false;
}