/*
 * Minio Cloud Storage, (C) 2019 Minio, 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 mem

import (
	"runtime"

	humanize "github.com/dustin/go-humanize"
)

// Usage holds memory utilization information in human readable format
type Usage struct {
	Mem   string `json:"mem"`
	Error string `json:"error,omitempty"`
}

// GetUsage measures the total memory provisioned for the current process
// from the OS
func GetUsage() Usage {
	memStats := new(runtime.MemStats)
	runtime.ReadMemStats(memStats)
	return Usage{
		Mem: humanize.IBytes(memStats.Sys),
	}
}
