| /* Copyright (c) 2014 The Regents of the University of California |
| * Kevin Klues <klueska@cs.berkeley.edu> |
| * See LICENSE for details. */ |
| |
| #pragma once |
| |
| #include <stdint.h> |
| |
| __BEGIN_DECLS |
| |
| /* Types of per-vcore alarms that can be set */ |
| enum { |
| /* This is a real-time alarm that does not take into account time that a |
| * vcore spends offline not doing work. It is like the posix ITIMER_REAL |
| * but for vcores. */ |
| PVCALARM_REAL, |
| /* This is a profiling alarm that only accounts for time that a vcore |
| * spends online doing useful work. It is like the posix ITIMER_PROF but |
| * for vcores. */ |
| PVCALARM_PROF |
| }; |
| |
| /* Enable the per-vcore calarm service according to one of the policies listed |
| * above. Every interval usecs the provided callback will be called on each |
| * active vcore according to that policy. */ |
| int enable_pvcalarms(int policy, uint64_t interval, void (*callback) (void)); |
| |
| /* Disable the currently active per-vcore alarm service */ |
| int disable_pvcalarms(); |
| |
| __END_DECLS |
