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feat: use available memory in Linux instead of free memory.

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This commit is contained in:
huanghongxun 2021-09-10 20:58:40 +08:00
parent fd246b7bc6
commit 95ea6610b1
1 changed files with 32 additions and 0 deletions
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32
HMCLCore/src/main/java/org/jackhuang/hmcl/util/platform/OperatingSystem.java
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@ -18,12 +18,15 @@
package org.jackhuang.hmcl.util.platform;
import java.io.File;
import java.io.IOException;
import java.nio.charset.Charset;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.Paths;
import java.util.Arrays;
import java.util.Locale;
import java.util.Optional;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
/**
@ -129,7 +132,36 @@ public enum OperatingSystem {
}
}
private static final Pattern MEMINFO_PATTERN = Pattern.compile("^(?<key>.*?):\\s+(?<value>\\d+) kB?$");
public static Optional<PhysicalMemoryStatus> getPhysicalMemoryStatus() {
if (CURRENT_OS == LINUX) {
try {
long free = 0, available = 0, total = 0;
for (String line : Files.readAllLines(Paths.get("/proc/meminfo"))) {
Matcher matcher = MEMINFO_PATTERN.matcher(line);
if (matcher.find()) {
String key = matcher.group("key");
String value = matcher.group("value");
if ("MemAvailable".equals(key)) {
available = Long.parseLong(value) * 1024;
}
if ("MemFree".equals(key)) {
free = Long.parseLong(value) * 1024;
}
if ("MemTotal".equals(key)) {
total = Long.parseLong(value) * 1024;
}
}
}
if (total > 0) {
return Optional.of(new PhysicalMemoryStatus(total, available > 0 ? available : free));
}
} catch (IOException e) {
e.printStackTrace();
}
}
java.lang.management.OperatingSystemMXBean bean = java.lang.management.ManagementFactory.getOperatingSystemMXBean();
if (bean instanceof com.sun.management.OperatingSystemMXBean) {
com.sun.management.OperatingSystemMXBean sunBean =