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https://github.com/VictoriaMetrics/VictoriaMetrics.git
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7f4fb34182
It is better developing vmctl tool in VictoriaMetrics repository, so it could be released together with the rest of vmutils tools such as vmalert, vmagent, vmbackup, vmrestore and vmauth.
59 lines
1.6 KiB
Go
59 lines
1.6 KiB
Go
// Copyright 2018 The Prometheus Authors
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package procfs
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import (
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"fmt"
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"github.com/prometheus/procfs/internal/util"
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)
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// ProcIO models the content of /proc/<pid>/io.
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type ProcIO struct {
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// Chars read.
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RChar uint64
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// Chars written.
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WChar uint64
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// Read syscalls.
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SyscR uint64
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// Write syscalls.
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SyscW uint64
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// Bytes read.
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ReadBytes uint64
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// Bytes written.
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WriteBytes uint64
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// Bytes written, but taking into account truncation. See
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// Documentation/filesystems/proc.txt in the kernel sources for
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// detailed explanation.
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CancelledWriteBytes int64
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}
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// IO creates a new ProcIO instance from a given Proc instance.
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func (p Proc) IO() (ProcIO, error) {
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pio := ProcIO{}
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data, err := util.ReadFileNoStat(p.path("io"))
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if err != nil {
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return pio, err
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}
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ioFormat := "rchar: %d\nwchar: %d\nsyscr: %d\nsyscw: %d\n" +
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"read_bytes: %d\nwrite_bytes: %d\n" +
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"cancelled_write_bytes: %d\n"
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_, err = fmt.Sscanf(string(data), ioFormat, &pio.RChar, &pio.WChar, &pio.SyscR,
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&pio.SyscW, &pio.ReadBytes, &pio.WriteBytes, &pio.CancelledWriteBytes)
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return pio, err
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}
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