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[orbis-kernel] evf: fix set data race, Multi mode fixes

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This commit is contained in:
DH 2023-07-05 22:23:42 +03:00
parent 0d7b090032
commit cd9ced41d8
2 changed files with 26 additions and 24 deletions
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28
orbis-kernel/include/orbis/evf.hpp
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@ -61,6 +61,12 @@ struct EventFlag {
shared_mutex queueMtx;
enum class NotifyType {
Set,
Cancel,
Destroy
};
explicit EventFlag(std::int32_t attrs) : attrs(attrs) {}
ErrorCode wait(Thread *thread, std::uint8_t waitMode,
@ -68,33 +74,23 @@ struct EventFlag {
std::uint32_t *timeout);
ErrorCode tryWait(Thread *thread, std::uint8_t waitMode,
std::uint64_t bitPattern, std::uint64_t *patternSet);
std::size_t notify(bool isCancel = false, std::uint64_t cancelValue = 0);
std::size_t notify(NotifyType type, std::uint64_t bits);
std::size_t destroy() {
isDeleted = true;
return notify();
return notify(NotifyType::Destroy, {});
}
std::size_t cancel(std::uint64_t value) {
return notify(true, value);
return notify(NotifyType::Cancel, value);
}
std::size_t set(std::uint64_t bits) {
{
writer_lock lock(queueMtx);
value.fetch_or(bits, std::memory_order::relaxed);
}
return notify();
return notify(NotifyType::Set, bits);
}
void clear(std::uint64_t bits) {
{
writer_lock lock(queueMtx);
value.fetch_and(bits, std::memory_order::relaxed);
}
value &= bits;
writer_lock lock(queueMtx);
value.fetch_and(bits, std::memory_order::relaxed);
}
void incRef() { references.fetch_add(1, std::memory_order::relaxed); }