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analog_from_button: Fix update_thread.join exception

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This commit aims to address an exception that occurs when trying to join the Analog object's update_thread.

By using an atomic bool for the status of the update thread, we ensure its value is consistent across the threads accessing it.
This commit is contained in:
ameerj 2021-01-29 18:41:22 -05:00
parent b786568c5a
commit ef8b3623f5
1 changed files with 9 additions and 5 deletions
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14
src/input_common/analog_from_button.cpp
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@ -2,6 +2,7 @@
// Licensed under GPLv2 or any later version // Licensed under GPLv2 or any later version
// Refer to the license.txt file included. // Refer to the license.txt file included.
#include <atomic>
#include <chrono> #include <chrono>
#include <cmath> #include <cmath>
#include <thread> #include <thread>
@ -20,13 +21,16 @@ public:
: up(std::move(up_)), down(std::move(down_)), left(std::move(left_)), : up(std::move(up_)), down(std::move(down_)), left(std::move(left_)),
right(std::move(right_)), modifier(std::move(modifier_)), modifier_scale(modifier_scale_), right(std::move(right_)), modifier(std::move(modifier_)), modifier_scale(modifier_scale_),
modifier_angle(modifier_angle_) { modifier_angle(modifier_angle_) {
update_thread_running.store(true);
update_thread = std::thread(&Analog::UpdateStatus, this); update_thread = std::thread(&Analog::UpdateStatus, this);
} }
~Analog() override { ~Analog() override {
update_thread_running = false; if (update_thread_running.load()) {
if (update_thread.joinable()) { update_thread_running.store(false);
update_thread.join(); if (update_thread.joinable()) {
update_thread.join();
}
} }
} }
@ -58,7 +62,7 @@ public:
} }
void UpdateStatus() { void UpdateStatus() {
while (update_thread_running) { while (update_thread_running.load()) {
const float coef = modifier->GetStatus() ? modifier_scale : 1.0f; const float coef = modifier->GetStatus() ? modifier_scale : 1.0f;
bool r = right->GetStatus(); bool r = right->GetStatus();
@ -160,7 +164,7 @@ private:
float angle{}; float angle{};
float amplitude{}; float amplitude{};
std::thread update_thread; std::thread update_thread;
bool update_thread_running{true}; std::atomic<bool> update_thread_running{};
}; };
std::unique_ptr<Input::AnalogDevice> AnalogFromButton::Create(const Common::ParamPackage& params) { std::unique_ptr<Input::AnalogDevice> AnalogFromButton::Create(const Common::ParamPackage& params) {