apps: Share common source between applications

Multiple source files in the src/apps/cam/ directory are used by cam,
qcam and lc-compliance. They are compiled separately for each
application. Move them to a new src/apps/common/ directory and compile
them in a static library to decrease the number of compilation
operations.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Umang Jain <umang.jain@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>

1 files changed, 0 insertions, 68 deletions

diff --git a/src/apps/cam/event_loop.h b/src/apps/cam/event_loop.h
deleted file mode 100644
index ef79e8e5..00000000
--- a/src/apps/cam/event_loop.h
+++ /dev/null
@@ -1,68 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0-or-later */
-/*
- * Copyright (C) 2019, Google Inc.
- *
- * event_loop.h - cam - Event loop
- */
-
-#pragma once
-
-#include <chrono>
-#include <functional>
-#include <list>
-#include <memory>
-#include <mutex>
-
-#include <event2/util.h>
-
-struct event_base;
-
-class EventLoop
-{
-public:
-	enum EventType {
-		Read = 1,
-		Write = 2,
-	};
-
-	EventLoop();
-	~EventLoop();
-
-	static EventLoop *instance();
-
-	int exec();
-	void exit(int code = 0);
-
-	void callLater(const std::function<void()> &func);
-
-	void addFdEvent(int fd, EventType type,
-			const std::function<void()> &handler);
-
-	using duration = std::chrono::steady_clock::duration;
-	void addTimerEvent(const std::chrono::microseconds period,
-			   const std::function<void()> &handler);
-
-private:
-	struct Event {
-		Event(const std::function<void()> &callback);
-		~Event();
-
-		static void dispatch(int fd, short events, void *arg);
-
-		std::function<void()> callback_;
-		struct event *event_;
-	};
-
-	static EventLoop *instance_;
-
-	struct event_base *base_;
-	int exitCode_;
-
-	std::list<std::function<void()>> calls_;
-	std::list<std::unique_ptr<Event>> events_;
-	std::mutex lock_;
-
-	static void dispatchCallback(evutil_socket_t fd, short flags,
-				     void *param);
-	void dispatchCall();
-};