source: source/ariba/utility/transport/asio/unique_io_service.h@ 10688

Last change on this file since 10688 was 10653, checked in by Michael Tänzer, 12 years ago

Merge the ASIO branch back into trunk

File size: 3.2 KB
Line 
1// [License]
2// The Ariba-Underlay Copyright
3//
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37// [License]
38
39
40#ifndef UNIQUE_IO_SERVICE_H_
41#define UNIQUE_IO_SERVICE_H_
42
43#include <boost/thread.hpp>
44#include <boost/asio.hpp>
45#include <boost/noncopyable.hpp>
46
47namespace ariba {
48namespace transport {
49namespace detail {
50
51/**
52 * Multiplexes an asio_io_service so it can be used by multiple components.
53 * This class is _not_ threadsafe (use only from ariba thread/system queue)
54 *
55 * @author Mario Hock <mario@omnifile.org>, Michael TÀnzer <neo@nhng.de>
56 */
57class unique_io_service : public boost::noncopyable
58{
59public:
60 unique_io_service();
61 ~unique_io_service();
62
63 /**
64 * Returned io_service is only valid during the lifetime of the
65 * unique_io_service object.
66 */
67 boost::asio::io_service& get_asio_io_service();
68
69 /**
70 * Executes the io_service::run() method in a parallel thread.
71 * Multiple calls don't lead to multiple threads.
72 */
73 void start();
74
75 /**
76 * Make the io_service::run() method return and stop thread if this is the
77 * last stop() call (number of start() calls == number of stop() calls)
78 */
79 void stop();
80
81private:
82 static void thread_function();
83
84
85private:
86 static boost::asio::io_service* asio_io_service;
87 static int asio_io_service_ref_count;
88
89 static boost::thread* thread;
90 static int run_count;
91
92 static boost::mutex thread_stopped_mutex;
93 static boost::condition_variable thread_stopped_cond;
94 static bool thread_stopped;
95
96 bool running;
97};
98
99}}} // namespace ariba::transport::detail
100
101#endif /* UNIQUE_IO_SERVICE_H_ */
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