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fix(npu): prevent ResourceCleaner timeout overflow on libstdc++ #142

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fix(npu): prevent ResourceCleaner timeout overflow on libstdc++ #142

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6d5e40b
fix(npu): prevent ResourceCleaner timeout overflow on libstdc++
cabelo Jul 30, 2026
6481783
Fix the indent
cabelo Jul 31, 2026
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18 changes: 13 additions & 5 deletions umd/level_zero_driver/source/context.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -258,12 +258,20 @@ ResourceCleaner::ResourceCleaner(Context *ctx, std::chrono::milliseconds timeout
, thread(
[this](Context *ctx) {
std::unique_lock<std::mutex> lock(mutex);
auto timeout = std::chrono::time_point<std::chrono::steady_clock>::max();
while (action != Action::BREAK) {
if (cv.wait_until(lock, timeout) == std::cv_status::timeout) {
const auto noTimeout =
std::chrono::time_point<std::chrono::steady_clock>::max();
auto timeout = noTimeout;
while (action != Action::BREAK) {
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if (timeout == noTimeout) {
cv.wait(lock);
} else if (cv.wait_until(lock, timeout) ==
std::cv_status::timeout) {
ctx->releaseMemory();
timeout = std::chrono::time_point<std::chrono::steady_clock>::max();
} else if (action == Action::PRUNE_AFTER_TIMEOUT) {
timeout = noTimeout;
continue;
}

if (action == Action::PRUNE_AFTER_TIMEOUT) {
timeout = std::chrono::steady_clock::now() + idleTimeout;
}
}
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