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// Copyright 2020 The Fuchsia Authors
// Use of this source code is governed by a MIT-style
// license that can be found in the LICENSE file or at
#include <zircon/syscalls/object.h>
#include <zircon/time.h>
// Holds information about the runtime of a task.
struct TaskRuntimeStats {
// The total duration spent running on a CPU.
zx_duration_t cpu_time = 0;
// The total duration spent ready to start running.
zx_duration_t queue_time = 0;
// The total duration (in ticks) spent handling page faults.
zx_ticks_t page_fault_ticks = 0;
// The total duration (in ticks) spent contented on kernel locks.
zx_ticks_t lock_contention_ticks = 0;
// Add another TaskRuntimeStats into this one.
void Add(const TaskRuntimeStats& other) {
cpu_time = zx_duration_add_duration(cpu_time, other.cpu_time);
queue_time = zx_duration_add_duration(queue_time, other.queue_time);
page_fault_ticks = zx_ticks_add_ticks(page_fault_ticks, other.page_fault_ticks);
lock_contention_ticks = zx_ticks_add_ticks(lock_contention_ticks, other.lock_contention_ticks);
void AccumulateRuntimeTo(zx_info_task_runtime_t* info) const;