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wpiutil: uv::Loop: Store the thread ID of the loop

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This commit is contained in:
Peter Johnson
2018-09-23 16:15:54 -07:00
parent de6d6c9a5c
commit 36000ddb36
1 changed files with 13 additions and 2 deletions
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15
wpiutil/src/main/native/include/wpi/uv/Loop.h
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@@ -10,9 +10,11 @@
#include <uv.h>
#include <atomic>
#include <chrono>
#include <functional>
#include <memory>
#include <thread>
#include <utility>
#include "wpi/Signal.h"
@@ -95,8 +97,10 @@ class Loop final : public std::enable_shared_from_this<Loop> {
* @return True when done, false in all other cases.
*/
bool Run(Mode mode = kDefault) {
return uv_run(m_loop, static_cast<uv_run_mode>(static_cast<int>(mode))) ==
0;
m_tid = std::this_thread::get_id();
int rv = uv_run(m_loop, static_cast<uv_run_mode>(static_cast<int>(mode)));
m_tid = std::thread::id{};
return rv == 0;
}
/**
@@ -223,6 +227,12 @@ class Loop final : public std::enable_shared_from_this<Loop> {
*/
void SetData(std::shared_ptr<void> data) { m_data = std::move(data); }
/**
* Get the thread id of the loop thread. If the loop is not currently
* running, returns default-constructed thread id.
*/
std::thread::id GetThreadId() const { return m_tid; }
/**
* Error signal
*/
@@ -238,6 +248,7 @@ class Loop final : public std::enable_shared_from_this<Loop> {
std::shared_ptr<void> m_data;
uv_loop_t* m_loop;
uv_loop_t m_loopStruct;
std::atomic<std::thread::id> m_tid;
};
} // namespace uv