]>
Commit | Line | Data |
---|---|---|
7c673cae FG |
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 | ||
11 | #ifndef BOOST_INTERPROCESS_DETAIL_WINAPI_WRAPPER_COMMON_HPP | |
12 | #define BOOST_INTERPROCESS_DETAIL_WINAPI_WRAPPER_COMMON_HPP | |
13 | ||
14 | #ifndef BOOST_CONFIG_HPP | |
15 | # include <boost/config.hpp> | |
16 | #endif | |
17 | # | |
18 | #if defined(BOOST_HAS_PRAGMA_ONCE) | |
19 | # pragma once | |
20 | #endif | |
21 | ||
22 | #include <boost/interprocess/detail/config_begin.hpp> | |
23 | #include <boost/interprocess/detail/workaround.hpp> | |
24 | #include <boost/interprocess/detail/win32_api.hpp> | |
25 | #include <boost/interprocess/detail/posix_time_types_wrk.hpp> | |
26 | #include <boost/interprocess/errors.hpp> | |
27 | #include <boost/interprocess/exceptions.hpp> | |
28 | #include <limits> | |
29 | ||
30 | namespace boost { | |
31 | namespace interprocess { | |
32 | namespace ipcdetail { | |
33 | ||
34 | inline void winapi_wrapper_wait_for_single_object(void *handle) | |
35 | { | |
36 | unsigned long ret = winapi::wait_for_single_object(handle, winapi::infinite_time); | |
37 | if(ret != winapi::wait_object_0){ | |
38 | if(ret != winapi::wait_abandoned){ | |
39 | error_info err = system_error_code(); | |
40 | throw interprocess_exception(err); | |
41 | } | |
42 | else{ //Special case for orphaned mutexes | |
43 | winapi::release_mutex(handle); | |
44 | throw interprocess_exception(owner_dead_error); | |
45 | } | |
46 | } | |
47 | } | |
48 | ||
49 | inline bool winapi_wrapper_try_wait_for_single_object(void *handle) | |
50 | { | |
51 | unsigned long ret = winapi::wait_for_single_object(handle, 0); | |
52 | if(ret == winapi::wait_object_0){ | |
53 | return true; | |
54 | } | |
55 | else if(ret == winapi::wait_timeout){ | |
56 | return false; | |
57 | } | |
58 | else{ | |
59 | error_info err = system_error_code(); | |
60 | throw interprocess_exception(err); | |
61 | } | |
62 | } | |
63 | ||
64 | inline bool winapi_wrapper_timed_wait_for_single_object(void *handle, const boost::posix_time::ptime &abs_time) | |
65 | { | |
66 | //Windows does not support infinity abs_time so check it | |
67 | if(abs_time == boost::posix_time::pos_infin){ | |
68 | winapi_wrapper_wait_for_single_object(handle); | |
69 | return true; | |
70 | } | |
71 | const boost::posix_time::ptime cur_time = microsec_clock::universal_time(); | |
72 | //Windows uses relative wait times so check for negative waits | |
73 | //and implement as 0 wait to allow try-semantics as POSIX mandates. | |
74 | unsigned long ret = winapi::wait_for_single_object | |
75 | ( handle | |
76 | , (abs_time <= cur_time) ? 0u | |
77 | : (abs_time - cur_time).total_milliseconds() | |
78 | ); | |
79 | if(ret == winapi::wait_object_0){ | |
80 | return true; | |
81 | } | |
82 | else if(ret == winapi::wait_timeout){ | |
83 | return false; | |
84 | } | |
85 | else{ | |
86 | error_info err = system_error_code(); | |
87 | throw interprocess_exception(err); | |
88 | } | |
89 | } | |
90 | ||
91 | } //namespace ipcdetail { | |
92 | } //namespace interprocess { | |
93 | } //namespace boost { | |
94 | ||
95 | #include <boost/interprocess/detail/config_end.hpp> | |
96 | ||
97 | #endif //BOOST_INTERPROCESS_DETAIL_WINAPI_MUTEX_WRAPPER_HPP |