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/*
* Copyright 2020-2022 The OSHI Project Contributors
* SPDX-License-Identifier: MIT
*/
package oshi.driver.unix.aix;
import java.util.ArrayList;
import java.util.Collections;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.Map.Entry;
import oshi.annotation.concurrent.ThreadSafe;
import oshi.hardware.HWPartition;
import oshi.util.ExecutingCommand;
import oshi.util.ParseUtil;
import oshi.util.tuples.Pair;
/**
* Utility to query lspv
*/
@ThreadSafe
public final class Lspv {
private Lspv() {
}
/**
* Query {@code lspv} to get partition info
*
* @param device The disk to get the volumes from
* @param majMinMap A map of device name to a pair with major and minor numbers.
*
* @return A pair containing the model and serial number for the device, or null if not found
*/
public static List queryLogicalVolumes(String device, Map> majMinMap) {
/*-
$ lspv -L hdisk0
PHYSICAL VOLUME: hdisk0 VOLUME GROUP: rootvg
PV IDENTIFIER: 000acfde95524f85 VG IDENTIFIER 000acfde00004c000000000395525276
PV STATE: active
STALE PARTITIONS: 0 ALLOCATABLE: yes
PP SIZE: 128 megabyte(s) LOGICAL VOLUMES: 12
TOTAL PPs: 271 (34688 megabytes) VG DESCRIPTORS: 2
FREE PPs: 227 (29056 megabytes) HOT SPARE: no
USED PPs: 44 (5632 megabytes) MAX REQUEST: 256 kilobytes
FREE DISTRIBUTION: 54..46..19..54..54
USED DISTRIBUTION: 01..08..35..00..00
*/
String stateMarker = "PV STATE:";
String sizeMarker = "PP SIZE:";
long ppSize = 0L; // All physical partitions are the same size
for (String s : ExecutingCommand.runNative("lspv -L " + device)) {
if (s.startsWith(stateMarker)) {
if (!s.contains("active")) {
return Collections.emptyList();
}
} else if (s.contains(sizeMarker)) {
ppSize = ParseUtil.getFirstIntValue(s);
}
}
if (ppSize == 0L) {
return Collections.emptyList();
}
// Convert to megabytes
ppSize <<= 20;
/*-
$ lspv -p hdisk0
hdisk0:
PP RANGE STATE REGION LV NAME TYPE MOUNT POINT
1-1 used outer edge hd5 boot N/A
2-55 free outer edge
56-59 used outer middle hd6 paging N/A
60-61 used outer middle livedump jfs2 /var/adm/ras/livedump
62-62 used outer middle loglv01 jfslog N/A
63-63 used outer middle lv01 jfs N/A
64-109 free outer middle
110-110 used center hd8 jfs2log N/A
111-112 used center hd4 jfs2 /
113-128 used center hd2 jfs2 /usr
129-131 used center hd9var jfs2 /var
132-132 used center hd3 jfs2 /tmp
133-133 used center hd9var jfs2 /var
134-136 used center hd10opt jfs2 /opt
137-137 used center hd11admin jfs2 /admin
138-140 used center hd2 jfs2 /usr
141-141 used center hd3 jfs2 /tmp
142-142 used center hd4 jfs2 /
143-143 used center hd9var jfs2 /var
144-144 used center hd2 jfs2 /usr
145-163 free center
164-217 free inner middle
218-271 free inner edge
*/
Map mountMap = new HashMap<>();
Map typeMap = new HashMap<>();
Map ppMap = new HashMap<>();
for (String s : ExecutingCommand.runNative("lspv -p " + device)) {
String[] split = ParseUtil.whitespaces.split(s.trim());
if (split.length >= 6 && "used".equals(split[1])) {
// Region may have two words, so count from end
String name = split[split.length - 3];
mountMap.put(name, split[split.length - 1]);
typeMap.put(name, split[split.length - 2]);
int ppCount = 1 + ParseUtil.getNthIntValue(split[0], 2) - ParseUtil.getNthIntValue(split[0], 1);
ppMap.put(name, ppCount + ppMap.getOrDefault(name, 0));
}
}
List partitions = new ArrayList<>();
for (Entry entry : mountMap.entrySet()) {
String mount = "N/A".equals(entry.getValue()) ? "" : entry.getValue();
// All maps should have same keys
String name = entry.getKey();
String type = typeMap.get(name);
long size = ppSize * ppMap.get(name);
Pair majMin = majMinMap.get(name);
int major = majMin == null ? ParseUtil.getFirstIntValue(name) : majMin.getA();
int minor = majMin == null ? ParseUtil.getFirstIntValue(name) : majMin.getB();
partitions.add(new HWPartition(name, name, type, "", size, major, minor, mount));
}
return partitions;
}
}