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Fix a thread safety issue in TimeZoneInfo

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disarray2077 2021-06-21 17:06:33 -03:00
parent e61d702da1
commit 47a5785179
1 changed files with 4 additions and 1 deletions
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5
BeefLibs/corlib/src/TimeZoneInfo.bf
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@ -253,7 +253,10 @@ namespace System {
if (rule != null) if (rule != null)
rule = rule.Clone(); rule = rule.Clone();
oneYearLocFromUtc = new OffsetAndRule(year, currentYear.BaseUtcOffset, rule); oneYearLocFromUtc = new OffsetAndRule(year, currentYear.BaseUtcOffset, rule);
m_oneYearLocalFromUtc = oneYearLocFromUtc; if (Interlocked.CompareExchange(ref m_oneYearLocalFromUtc, null, oneYearLocFromUtc) != null) {
delete oneYearLocFromUtc;
oneYearLocFromUtc = m_oneYearLocalFromUtc;
}
} }
return oneYearLocFromUtc; return oneYearLocFromUtc;
} }