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[wpilib] Throw early when EventLoop is modified while running (#6115)

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This commit is contained in:
Thad House
2023-12-31 22:45:10 -08:00
committed by GitHub
parent c16946c0ec
commit f9aabc5ab2
5 changed files with 91 additions and 1 deletions
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21
wpilibc/src/main/native/cpp/event/EventLoop.cpp
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@@ -4,20 +4,41 @@
#include "frc/event/EventLoop.h"
#include "frc/Errors.h"
using namespace frc;
namespace {
struct RunningSetter {
bool& m_running;
explicit RunningSetter(bool& running) noexcept : m_running{running} {
m_running = true;
}
~RunningSetter() noexcept { m_running = false; }
};
} // namespace
EventLoop::EventLoop() {}
void EventLoop::Bind(wpi::unique_function<void()> action) {
if (m_running) {
throw FRC_MakeError(err::Error,
"Cannot bind EventLoop while it is running");
}
m_bindings.emplace_back(std::move(action));
}
void EventLoop::Poll() {
RunningSetter runSetter{m_running};
for (wpi::unique_function<void()>& action : m_bindings) {
action();
}
}
void EventLoop::Clear() {
if (m_running) {
throw FRC_MakeError(err::Error,
"Cannot clear EventLoop while it is running");
}
m_bindings.clear();
}