projects / ceph.git / blame
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|---|---|---|
| 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 |