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1 | ////////////////////////////////////////////////////////////////////////////// |
2 | // | |
3 | // (C) Copyright Ion Gaztanaga 2011-2012. Distributed under the Boost | |
4 | // Software License, Version 1.0. (See accompanying file | |
5 | // LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) | |
6 | // | |
7 | // See http://www.boost.org/libs/interprocess for documentation. | |
8 | // | |
9 | ////////////////////////////////////////////////////////////////////////////// | |
10 | #ifndef BOOST_INTERPROCESS_WINDOWS_NAMED_MUTEX_HPP | |
11 | #define BOOST_INTERPROCESS_WINDOWS_NAMED_MUTEX_HPP | |
12 | ||
13 | #ifndef BOOST_CONFIG_HPP | |
14 | # include <boost/config.hpp> | |
15 | #endif | |
16 | # | |
17 | #if defined(BOOST_HAS_PRAGMA_ONCE) | |
18 | # pragma once | |
19 | #endif | |
20 | ||
21 | #include <boost/interprocess/detail/config_begin.hpp> | |
22 | #include <boost/interprocess/detail/workaround.hpp> | |
23 | #include <boost/interprocess/creation_tags.hpp> | |
24 | #include <boost/interprocess/permissions.hpp> | |
25 | #include <boost/interprocess/detail/interprocess_tester.hpp> | |
26 | #include <boost/interprocess/detail/posix_time_types_wrk.hpp> | |
27 | #include <boost/interprocess/sync/windows/sync_utils.hpp> | |
28 | #include <boost/interprocess/sync/windows/named_sync.hpp> | |
29 | #include <boost/interprocess/sync/windows/winapi_mutex_wrapper.hpp> | |
30 | #include <boost/interprocess/errors.hpp> | |
31 | #include <boost/interprocess/exceptions.hpp> | |
32 | #include <limits> | |
33 | ||
34 | namespace boost { | |
35 | namespace interprocess { | |
36 | namespace ipcdetail { | |
37 | ||
38 | ||
39 | ||
40 | class windows_named_mutex | |
41 | { | |
42 | #if !defined(BOOST_INTERPROCESS_DOXYGEN_INVOKED) | |
43 | ||
44 | //Non-copyable | |
45 | windows_named_mutex(); | |
46 | windows_named_mutex(const windows_named_mutex &); | |
47 | windows_named_mutex &operator=(const windows_named_mutex &); | |
48 | #endif //#ifndef BOOST_INTERPROCESS_DOXYGEN_INVOKED | |
49 | ||
50 | public: | |
51 | windows_named_mutex(create_only_t, const char *name, const permissions &perm = permissions()); | |
52 | ||
53 | windows_named_mutex(open_or_create_t, const char *name, const permissions &perm = permissions()); | |
54 | ||
55 | windows_named_mutex(open_only_t, const char *name); | |
56 | ||
57 | ~windows_named_mutex(); | |
58 | ||
59 | void unlock(); | |
60 | void lock(); | |
61 | bool try_lock(); | |
62 | bool timed_lock(const boost::posix_time::ptime &abs_time); | |
63 | ||
64 | static bool remove(const char *name); | |
65 | ||
66 | #if !defined(BOOST_INTERPROCESS_DOXYGEN_INVOKED) | |
67 | private: | |
68 | friend class interprocess_tester; | |
69 | void dont_close_on_destruction(); | |
70 | winapi_mutex_wrapper m_mtx_wrapper; | |
71 | windows_named_sync m_named_sync; | |
72 | ||
73 | class named_mut_callbacks : public windows_named_sync_interface | |
74 | { | |
75 | public: | |
76 | named_mut_callbacks(winapi_mutex_wrapper &mtx_wrapper) | |
77 | : m_mtx_wrapper(mtx_wrapper) | |
78 | {} | |
79 | ||
80 | virtual std::size_t get_data_size() const | |
81 | { return 0u; } | |
82 | ||
83 | virtual const void *buffer_with_init_data_to_file() | |
84 | { return 0; } | |
85 | ||
86 | virtual const void *buffer_with_final_data_to_file() | |
87 | { return 0; } | |
88 | ||
89 | virtual void *buffer_to_store_init_data_from_file() | |
90 | { return 0; } | |
91 | ||
92 | virtual bool open(create_enum_t, const char *id_name) | |
93 | { | |
94 | std::string aux_str = "Global\\bipc.mut."; | |
95 | aux_str += id_name; | |
96 | // | |
97 | permissions mut_perm; | |
98 | mut_perm.set_unrestricted(); | |
99 | return m_mtx_wrapper.open_or_create(aux_str.c_str(), mut_perm); | |
100 | } | |
101 | ||
102 | virtual void close() | |
103 | { | |
104 | m_mtx_wrapper.close(); | |
105 | } | |
106 | ||
107 | virtual ~named_mut_callbacks() | |
108 | {} | |
109 | ||
110 | private: | |
111 | winapi_mutex_wrapper& m_mtx_wrapper; | |
112 | }; | |
113 | #endif //#ifndef BOOST_INTERPROCESS_DOXYGEN_INVOKED | |
114 | }; | |
115 | ||
116 | inline windows_named_mutex::~windows_named_mutex() | |
117 | { | |
118 | named_mut_callbacks callbacks(m_mtx_wrapper); | |
119 | m_named_sync.close(callbacks); | |
120 | } | |
121 | ||
122 | inline void windows_named_mutex::dont_close_on_destruction() | |
123 | {} | |
124 | ||
125 | inline windows_named_mutex::windows_named_mutex | |
126 | (create_only_t, const char *name, const permissions &perm) | |
127 | : m_mtx_wrapper() | |
128 | { | |
129 | named_mut_callbacks callbacks(m_mtx_wrapper); | |
130 | m_named_sync.open_or_create(DoCreate, name, perm, callbacks); | |
131 | } | |
132 | ||
133 | inline windows_named_mutex::windows_named_mutex | |
134 | (open_or_create_t, const char *name, const permissions &perm) | |
135 | : m_mtx_wrapper() | |
136 | { | |
137 | named_mut_callbacks callbacks(m_mtx_wrapper); | |
138 | m_named_sync.open_or_create(DoOpenOrCreate, name, perm, callbacks); | |
139 | } | |
140 | ||
141 | inline windows_named_mutex::windows_named_mutex(open_only_t, const char *name) | |
142 | : m_mtx_wrapper() | |
143 | { | |
144 | named_mut_callbacks callbacks(m_mtx_wrapper); | |
145 | m_named_sync.open_or_create(DoOpen, name, permissions(), callbacks); | |
146 | } | |
147 | ||
148 | inline void windows_named_mutex::unlock() | |
149 | { | |
150 | m_mtx_wrapper.unlock(); | |
151 | } | |
152 | ||
153 | inline void windows_named_mutex::lock() | |
154 | { | |
155 | m_mtx_wrapper.lock(); | |
156 | } | |
157 | ||
158 | inline bool windows_named_mutex::try_lock() | |
159 | { | |
160 | return m_mtx_wrapper.try_lock(); | |
161 | } | |
162 | ||
163 | inline bool windows_named_mutex::timed_lock(const boost::posix_time::ptime &abs_time) | |
164 | { | |
165 | return m_mtx_wrapper.timed_lock(abs_time); | |
166 | } | |
167 | ||
168 | inline bool windows_named_mutex::remove(const char *name) | |
169 | { | |
170 | return windows_named_sync::remove(name); | |
171 | } | |
172 | ||
173 | } //namespace ipcdetail { | |
174 | } //namespace interprocess { | |
175 | } //namespace boost { | |
176 | ||
177 | #include <boost/interprocess/detail/config_end.hpp> | |
178 | ||
179 | #endif //BOOST_INTERPROCESS_WINDOWS_NAMED_MUTEX_HPP |