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:
named_mut_callbacks(winapi_mutex_wrapper & mtx_wrapper)76 named_mut_callbacks(winapi_mutex_wrapper &mtx_wrapper)
77 : m_mtx_wrapper(mtx_wrapper)
78 {}
79
get_data_size() const80 virtual std::size_t get_data_size() const
81 { return 0u; }
82
buffer_with_init_data_to_file()83 virtual const void *buffer_with_init_data_to_file()
84 { return 0; }
85
buffer_with_final_data_to_file()86 virtual const void *buffer_with_final_data_to_file()
87 { return 0; }
88
buffer_to_store_init_data_from_file()89 virtual void *buffer_to_store_init_data_from_file()
90 { return 0; }
91
open(create_enum_t,const char * id_name)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
close()102 virtual void close()
103 {
104 m_mtx_wrapper.close();
105 }
106
~named_mut_callbacks()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
~windows_named_mutex()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
dont_close_on_destruction()122 inline void windows_named_mutex::dont_close_on_destruction()
123 {}
124
windows_named_mutex(create_only_t,const char * name,const permissions & perm)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
windows_named_mutex(open_or_create_t,const char * name,const permissions & perm)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
windows_named_mutex(open_only_t,const char * name)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
unlock()148 inline void windows_named_mutex::unlock()
149 {
150 m_mtx_wrapper.unlock();
151 }
152
lock()153 inline void windows_named_mutex::lock()
154 {
155 m_mtx_wrapper.lock();
156 }
157
try_lock()158 inline bool windows_named_mutex::try_lock()
159 {
160 return m_mtx_wrapper.try_lock();
161 }
162
timed_lock(const boost::posix_time::ptime & abs_time)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
remove(const char * name)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