LibCore: Remove leading C from filenames

1 files changed, 122 insertions, 0 deletions

diff --git a/Libraries/LibCore/EventLoop.h b/Libraries/LibCore/EventLoop.h
new file mode 100644
index 0000000000..388b21310b
--- /dev/null
+++ b/Libraries/LibCore/EventLoop.h
@@ -0,0 +1,122 @@
+/*
+ * Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice, this
+ *    list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#pragma once
+
+#include <AK/Badge.h>
+#include <AK/HashMap.h>
+#include <AK/OwnPtr.h>
+#include <AK/Vector.h>
+#include <AK/WeakPtr.h>
+#include <LibCore/Event.h>
+#include <LibCore/LocalServer.h>
+#include <LibThread/Lock.h>
+#include <sys/select.h>
+#include <sys/time.h>
+#include <time.h>
+
+namespace Core {
+
+class Object;
+class Notifier;
+
+class EventLoop {
+public:
+    EventLoop();
+    ~EventLoop();
+
+    int exec();
+
+    enum class WaitMode {
+        WaitForEvents,
+        PollForEvents,
+    };
+
+    // processe events, generally called by exec() in a loop.
+    // this should really only be used for integrating with other event loops
+    void pump(WaitMode = WaitMode::WaitForEvents);
+
+    void post_event(Object& receiver, NonnullOwnPtr<Event>&&);
+
+    static EventLoop& main();
+    static EventLoop& current();
+
+    bool was_exit_requested() const { return m_exit_requested; }
+
+    static int register_timer(Object&, int milliseconds, bool should_reload, TimerShouldFireWhenNotVisible);
+    static bool unregister_timer(int timer_id);
+
+    static void register_notifier(Badge<Notifier>, Notifier&);
+    static void unregister_notifier(Badge<Notifier>, Notifier&);
+
+    void quit(int);
+    void unquit();
+
+    void take_pending_events_from(EventLoop& other)
+    {
+        m_queued_events.append(move(other.m_queued_events));
+    }
+
+    static void wake();
+
+private:
+    void wait_for_event(WaitMode);
+    void get_next_timer_expiration(timeval&);
+
+    struct QueuedEvent {
+        WeakPtr<Object> receiver;
+        NonnullOwnPtr<Event> event;
+    };
+
+    Vector<QueuedEvent, 64> m_queued_events;
+
+    bool m_exit_requested { false };
+    int m_exit_code { 0 };
+
+    static int s_wake_pipe_fds[2];
+
+    LibThread::Lock m_lock;
+
+    struct EventLoopTimer {
+        int timer_id { 0 };
+        int interval { 0 };
+        timeval fire_time { 0, 0 };
+        bool should_reload { false };
+        TimerShouldFireWhenNotVisible fire_when_not_visible { TimerShouldFireWhenNotVisible::No };
+        WeakPtr<Object> owner;
+
+        void reload(const timeval& now);
+        bool has_expired(const timeval& now) const;
+    };
+
+    static HashMap<int, NonnullOwnPtr<EventLoopTimer>>* s_timers;
+
+    static HashTable<Notifier*>* s_notifiers;
+
+    static RefPtr<LocalServer> s_rpc_server;
+};
+
+}