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use c_enum::c_enum;
use perf_event_open_sys::bindings;
use crate::events::Event;
c_enum! {
/// Software counters, implemented by the kernel.
///
/// Each variant of this enum corresponds to a particular `PERF_COUNT_SW_`...
/// value supported by the [`perf_event_open`][man] system call.
///
/// [man]: https://www.mankier.com/2/perf_event_open
#[repr(transparent)]
#[derive(Clone, Copy, Eq, PartialEq, Hash)]
pub enum Software : u64 {
/// High-resolution per-CPU timer.
CPU_CLOCK = bindings::PERF_COUNT_SW_CPU_CLOCK as _,
/// Per-task clock count.
TASK_CLOCK = bindings::PERF_COUNT_SW_TASK_CLOCK as _,
/// Page faults.
PAGE_FAULTS = bindings::PERF_COUNT_SW_PAGE_FAULTS as _,
/// Context switches.
CONTEXT_SWITCHES = bindings::PERF_COUNT_SW_CONTEXT_SWITCHES as _,
/// Process migration to another CPU.
CPU_MIGRATIONS = bindings::PERF_COUNT_SW_CPU_MIGRATIONS as _,
/// Minor page faults: resolved without needing I/O.
PAGE_FAULTS_MIN = bindings::PERF_COUNT_SW_PAGE_FAULTS_MIN as _,
/// Major page faults: I/O was required to resolve these.
PAGE_FAULTS_MAJ = bindings::PERF_COUNT_SW_PAGE_FAULTS_MAJ as _,
/// Alignment faults that required kernel intervention.
///
/// This is only generated on some CPUs, and never on x86_64 or
/// ARM.
ALIGNMENT_FAULTS = bindings::PERF_COUNT_SW_ALIGNMENT_FAULTS as _,
/// Instruction emulation faults.
EMULATION_FAULTS = bindings::PERF_COUNT_SW_EMULATION_FAULTS as _,
/// Placeholder, for collecting informational sample records.
DUMMY = bindings::PERF_COUNT_SW_DUMMY as _,
/// Special event type for streaming data from a eBPF program.
///
/// See the documentation of the `bpf_perf_event_output` method in the
/// [`bpf-helpers(7)`] manpage for details on how to use this event type.
///
/// [`bpf-helpers(7)`]: https://man7.org/linux/man-pages/man7/bpf-helpers.7.html
BPF_OUTPUT = bindings::PERF_COUNT_SW_BPF_OUTPUT as _,
/// Context switches to a task in a different cgroup.
CGROUP_SWITCHES = bindings::PERF_COUNT_SW_CGROUP_SWITCHES as _,
}
}
impl Event for Software {
fn update_attrs(self, attr: &mut bindings::perf_event_attr) {
attr.type_ = bindings::PERF_TYPE_SOFTWARE;
attr.config = self.into();
}
}