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,
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31 #ifndef CDSLIB_OS_HPUX_TOPOLOGY_H
32 #define CDSLIB_OS_HPUX_TOPOLOGY_H
34 #ifndef CDSLIB_OS_TOPOLOGY_H
35 # error "<cds/os/topology.h> must be included instead"
38 #include <sys/mpctl.h>
40 namespace cds { namespace OS {
41 /// HP-UX-specific wrappers
42 CDS_CXX11_INLINE_NAMESPACE namespace Hpux {
47 /// Logical processor count for the system
48 static unsigned int processor_count()
50 return ::mpctl( MPC_GETNUMSPUS_SYS, 0, 0 );
53 /// Get current processor number
55 In HP-UX, processor and locality domain IDs are not guaranteed to exist
56 in numerical order. There may be holes in a sequential list of IDs.
58 This function guarantees sequence of processor numbers using internal processor ID mapping.
59 It returns sequential processor number, ie a number from 0 to N - 1, where N - processor count.
61 static unsigned int current_processor()
63 unsigned int nProc = native_current_processor();
64 if ( nProc < s_nProcMapSize )
65 return s_procMap[ nProc ].nProcNo;
70 /// Get OS-specific current processor number
72 The function returns OS-provided processor number.
73 Processor and locality domain IDs are not guaranteed to exist
74 in numerical order. There may be holes in a sequential list of IDs.
76 static unsigned int native_current_processor()
78 return ::mpctl( MPC_GETCURRENTSPU, 0, 0 );
88 struct processor_map {
94 static processor_map * s_procMap;
95 static size_t s_nProcMapSize;
97 static void make_processor_map();
103 #ifndef CDS_CXX11_INLINE_NAMESPACE_SUPPORT
104 using Hpux::topology;
106 }} // namespace cds::OS
108 #endif // #ifndef CDSLIB_OS_HPUX_TOPOLOGY_H