oshi.driver.mac.disk.Fsstat Maven / Gradle / Ivy
/**
* MIT License
*
* Copyright (c) 2010 - 2020 The OSHI Project Contributors: https://github.com/oshi/oshi/graphs/contributors
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
package oshi.driver.mac.disk;
import java.nio.charset.StandardCharsets;
import java.util.HashMap;
import java.util.Map;
import com.sun.jna.platform.mac.SystemB; // NOSONAR squid:S1191
import com.sun.jna.platform.mac.SystemB.Statfs;
import oshi.annotation.concurrent.ThreadSafe;
/**
* Utility to query fsstat
*/
@ThreadSafe
public final class Fsstat {
private Fsstat() {
}
/**
* Query fsstat to map partitions to mount points
*
* @return A map with partitions as the key and mount points as the value
*/
public static Map queryPartitionToMountMap() {
Map mountPointMap = new HashMap<>();
// Use statfs to populate mount point map
int numfs = SystemB.INSTANCE.getfsstat64(null, 0, 0);
// Create array to hold results
Statfs[] fs = new Statfs[numfs];
// Fill array with results
SystemB.INSTANCE.getfsstat64(fs, numfs * new Statfs().size(), SystemB.MNT_NOWAIT);
// Iterate all mounted file systems
for (Statfs f : fs) {
String mntFrom = new String(f.f_mntfromname, StandardCharsets.UTF_8).trim();
mountPointMap.put(mntFrom.replace("/dev/", ""), new String(f.f_mntonname, StandardCharsets.UTF_8).trim());
}
return mountPointMap;
}
}