2 This file is a part of libcds - Concurrent Data Structures library
4 (C) Copyright Maxim Khizhinsky (libcds.dev@gmail.com) 2006-2017
6 Source code repo: http://github.com/khizmax/libcds/
7 Download: http://sourceforge.net/projects/libcds/files/
9 Redistribution and use in source and binary forms, with or without
10 modification, are permitted provided that the following conditions are met:
12 * Redistributions of source code must retain the above copyright notice, this
13 list of conditions and the following disclaimer.
15 * Redistributions in binary form must reproduce the above copyright notice,
16 this list of conditions and the following disclaimer in the documentation
17 and/or other materials provided with the distribution.
19 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
20 AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21 IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
22 DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
23 FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24 DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
25 SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
26 CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
27 OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
28 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
31 #ifndef CDSLIB_OS_WIN_TOPOLOGY_H
32 #define CDSLIB_OS_WIN_TOPOLOGY_H
34 #ifndef CDSLIB_OS_TOPOLOGY_H
35 # error "<cds/os/topology.h> must be included instead"
38 #include <cds/details/defs.h>
44 namespace cds { namespace OS {
46 /// Windows-specific wrappers
47 CDS_CXX11_INLINE_NAMESPACE namespace Win32 {
51 The implementation assumes that:
52 \li the system has no more than 64 logical processors;
53 \li processor IDs are in numerical order from 0 to N - 1, where N - count of processor in the system
55 struct CDS_EXPORT_API topology
57 # if _WIN32_WINNT >= 0x0601 // >= Windows 7
58 static unsigned int processor_count()
60 return ::GetActiveProcessorCount( ALL_PROCESSOR_GROUPS );
63 /// Logical processor count for the system
64 static unsigned int processor_count();
67 # if _WIN32_WINNT >= 0x0600 // >= Windows Vista
68 static unsigned int current_processor()
70 return ::GetCurrentProcessorNumber();
72 # else // < Windows Vista
73 /// Get current processor number
74 static unsigned int current_processor();
77 /// Synonym for \ref current_processor
78 static unsigned int native_current_processor()
80 return current_processor();
93 #ifndef CDS_CXX11_INLINE_NAMESPACE_SUPPORT
94 using Win32::topology;
96 }} // namespace cds::OS
100 #endif // #ifndef CDSLIB_OS_WIN_TOPOLOGY_H