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LibCore: Add Notifier::close

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If a file descriptor is being closed, we need to permanently disable
any Notifier and remove it from the event loop. This method removes
the notifier and disables it so that the EventLoop does not use a
invalid file descriptor.
This commit is contained in:
Tom 2020-09-16 09:42:59 -06:00 • committed by Andreas Kling
parent 0579a2db34
commit d67553e128
Notes: sideshowbarker 2024-07-19 02:23:04 +09:00
2 changed files with 12 additions and 0 deletions
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10
Libraries/LibCore/Notifier.cpp
View file

@ -46,12 +46,22 @@ Notifier::~Notifier()
void Notifier::set_enabled(bool enabled)
{
if (m_fd < 0)
return;
if (enabled)
Core::EventLoop::register_notifier({}, *this);
else
Core::EventLoop::unregister_notifier({}, *this);
}
void Notifier::close()
{
if (m_fd < 0)
return;
set_enabled(false);
m_fd = -1;
}
void Notifier::event(Core::Event& event)
{
if (event.type() == Core::Event::NotifierRead && on_ready_to_read) {

2
Libraries/LibCore/Notifier.h
View file

@ -48,6 +48,8 @@ public:
Function<void()> on_ready_to_read;
Function<void()> on_ready_to_write;
void close();
int fd() const { return m_fd; }
unsigned event_mask() const { return m_event_mask; }
void set_event_mask(unsigned event_mask) { m_event_mask = event_mask; }