#include "kperf_helpers.h" #include <darwintest.h> #include <kperf/kperf.h> #include <unistd.h> void configure_kperf_stacks_timer(pid_t pid, unsigned int period_ms) { kperf_reset(); (void)kperf_action_count_set(1); (void)kperf_timer_count_set(1); T_ASSERT_POSIX_SUCCESS(kperf_action_samplers_set(1, KPERF_SAMPLER_USTACK | KPERF_SAMPLER_KSTACK), NULL); if (pid != -1) { T_ASSERT_POSIX_SUCCESS(kperf_action_filter_set_by_pid(1, pid), NULL); } T_ASSERT_POSIX_SUCCESS(kperf_timer_action_set(0, 1), NULL); T_ASSERT_POSIX_SUCCESS(kperf_timer_period_set(0, kperf_ns_to_ticks(period_ms * NSEC_PER_MSEC)), NULL); }