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// Copyright 2018 Google Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

// Package linux contains the constants and types needed to inferface with a Linux kernel.
package linux

// NumSoftIRQ is the number of software IRQs, exposed via /proc/stat.
//
// Defined in linux/interrupt.h.
const NumSoftIRQ = 10

// Sysinfo is the structure provided by sysinfo on linux versions > 2.3.48.
type Sysinfo struct {
	Uptime    int64
	Loads     [3]uint64
	TotalRAM  uint64
	FreeRAM   uint64
	SharedRAM uint64
	BufferRAM uint64
	TotalSwap uint64
	FreeSwap  uint64
	Procs     uint16
	_         [6]byte // Pad Procs to 64bits.
	TotalHigh uint64
	FreeHigh  uint64
	Unit      uint32
	/* The _f field in the glibc version of Sysinfo has size 0 on AMD64 */
}