| Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 1 | /* |
| 2 | * |
| Craig Tiller | 0605995 | 2015-02-18 08:34:56 -0800 | [diff] [blame] | 3 | * Copyright 2015, Google Inc. |
| Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 4 | * All rights reserved. |
| 5 | * |
| 6 | * Redistribution and use in source and binary forms, with or without |
| 7 | * modification, are permitted provided that the following conditions are |
| 8 | * met: |
| 9 | * |
| 10 | * * Redistributions of source code must retain the above copyright |
| 11 | * notice, this list of conditions and the following disclaimer. |
| 12 | * * Redistributions in binary form must reproduce the above |
| 13 | * copyright notice, this list of conditions and the following disclaimer |
| 14 | * in the documentation and/or other materials provided with the |
| 15 | * distribution. |
| 16 | * * Neither the name of Google Inc. nor the names of its |
| 17 | * contributors may be used to endorse or promote products derived from |
| 18 | * this software without specific prior written permission. |
| 19 | * |
| 20 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| 21 | * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| 22 | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| 23 | * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| 24 | * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| 25 | * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| 26 | * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| 27 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| 28 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| 29 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| 30 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 31 | * |
| 32 | */ |
| 33 | |
| Nicolas "Pixel" Noble | 1ff52d5 | 2015-03-01 05:24:36 +0100 | [diff] [blame] | 34 | #ifndef GRPC_SUPPORT_CPU_H |
| 35 | #define GRPC_SUPPORT_CPU_H |
| Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 36 | |
| Craig Tiller | 7630205 | 2015-02-09 16:47:40 -0800 | [diff] [blame] | 37 | #ifdef __cplusplus |
| 38 | extern "C" { |
| 39 | #endif |
| 40 | |
| Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 41 | /* Interface providing CPU information for currently running system */ |
| 42 | |
| 43 | /* Return the number of CPU cores on the current system. Will return 0 if |
| Jorge Canizales | 30e666c | 2015-03-13 14:45:40 -0700 | [diff] [blame^] | 44 | the information is not available. */ |
| Nicolas "Pixel" Noble | 213ed91 | 2015-01-30 02:11:35 +0100 | [diff] [blame] | 45 | unsigned gpr_cpu_num_cores(void); |
| Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 46 | |
| 47 | /* Return the CPU on which the current thread is executing; N.B. This should |
| 48 | be considered advisory only - it is possible that the thread is switched |
| 49 | to a different CPU at any time. Returns a value in range |
| 50 | [0, gpr_cpu_num_cores() - 1] */ |
| Nicolas "Pixel" Noble | 213ed91 | 2015-01-30 02:11:35 +0100 | [diff] [blame] | 51 | unsigned gpr_cpu_current_cpu(void); |
| Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 52 | |
| Craig Tiller | 7630205 | 2015-02-09 16:47:40 -0800 | [diff] [blame] | 53 | #ifdef __cplusplus |
| 54 | } // extern "C" |
| 55 | #endif |
| 56 | |
| Nicolas "Pixel" Noble | 1ff52d5 | 2015-03-01 05:24:36 +0100 | [diff] [blame] | 57 | #endif /* GRPC_SUPPORT_CPU_H */ |