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172e438cd6
Other handles can only be used within the loop itself, but Async is intended to be used from another thread. This introduces the possibility of a race condition between the loop being destroyed and the Async being destroyed. Change Async to keep a weak reference to a loop and check it before performing libuv operations.
38 lines
1.1 KiB
C++
38 lines
1.1 KiB
C++
/*----------------------------------------------------------------------------*/
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/* Copyright (c) 2018 FIRST. All Rights Reserved. */
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/* Open Source Software - may be modified and shared by FRC teams. The code */
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/* must be accompanied by the FIRST BSD license file in the root directory of */
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/* the project. */
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/*----------------------------------------------------------------------------*/
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#include "wpi/uv/Async.h"
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#include "wpi/uv/Loop.h"
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namespace wpi {
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namespace uv {
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Async<>::~Async() noexcept {
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if (auto loop = m_loop.lock())
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Close();
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else
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ForceClosed();
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}
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std::shared_ptr<Async<>> Async<>::Create(const std::shared_ptr<Loop>& loop) {
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auto h = std::make_shared<Async>(loop, private_init{});
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int err = uv_async_init(loop->GetRaw(), h->GetRaw(), [](uv_async_t* handle) {
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Async& h = *static_cast<Async*>(handle->data);
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h.wakeup();
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});
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if (err < 0) {
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loop->ReportError(err);
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return nullptr;
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}
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h->Keep();
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return h;
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}
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} // namespace uv
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} // namespace wpi
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