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This commit is contained in:
Laurent Clouet
2019-08-11 22:25:26 +02:00
parent 3001bed260
commit 3413301609
70 changed files with 60 additions and 322 deletions
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231
src/main/java/com/sheepit/client/os/Linux.java
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/*
* Copyright (C) 2010-2014 Laurent CLOUET
* Author Laurent CLOUET <laurent.clouet@nopnop.net>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; version 2
* of the License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
package com.sheepit.client.os;
import java.io.File;
import java.io.IOException;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.Scanner;
import com.sheepit.client.Log;
import com.sheepit.client.hardware.cpu.CPU;
public class Linux extends OS {
private final String NICE_BINARY_PATH = "nice";
private Boolean hasNiceBinary;
public Linux() {
super();
this.hasNiceBinary = null;
}
public String name() {
return "linux";
}
@Override
public String getRenderBinaryPath() {
return "rend.exe";
}
@Override
public CPU getCPU() {
CPU ret = new CPU();
try {
String filePath = "/proc/cpuinfo";
Scanner scanner = new Scanner(new File(filePath));
while (scanner.hasNextLine()) {
String line = scanner.nextLine();
if (line.startsWith("model name")) {
String buf[] = line.split(":");
if (buf.length > 1) {
ret.setName(buf[1].trim());
}
}
if (line.startsWith("cpu family")) {
String buf[] = line.split(":");
if (buf.length > 1) {
ret.setFamily(buf[1].trim());
}
}
if (line.startsWith("model") && line.startsWith("model name") == false) {
String buf[] = line.split(":");
if (buf.length > 1) {
ret.setModel(buf[1].trim());
}
}
}
scanner.close();
}
catch (java.lang.NoClassDefFoundError e) {
System.err.println("OS.Linux::getCPU error " + e + " mostly because Scanner class was introduced by Java 5 and you are running a lower version");
}
catch (Exception e) {
e.printStackTrace();
}
return ret;
}
@Override
public long getMemory() {
try {
String filePath = "/proc/meminfo";
Scanner scanner = new Scanner(new File(filePath));
while (scanner.hasNextLine()) {
String line = scanner.nextLine();
if (line.startsWith("MemTotal")) {
String buf[] = line.split(":");
if (buf.length > 0) {
Integer buf2 = new Integer(buf[1].trim().split(" ")[0]);
return (((buf2 / 262144) + 1) * 262144); // 256*1024 = 262144
}
}
}
scanner.close();
}
catch (java.lang.NoClassDefFoundError e) {
System.err.println("Machine::type error " + e + " mostly because Scanner class was introducted by Java 5 and you are running a lower version");
}
catch (Exception e) {
e.printStackTrace();
}
return 0;
}
@Override
public long getFreeMemory() {
try {
String filePath = "/proc/meminfo";
Scanner scanner = new Scanner(new File(filePath));
while (scanner.hasNextLine()) {
String line = scanner.nextLine();
if (line.startsWith("MemAvailable")) {
String buf[] = line.split(":");
if (buf.length > 0) {
Integer buf2 = new Integer(buf[1].trim().split(" ")[0]);
return (((buf2 / 262144) + 1) * 262144); // 256*1024 = 262144
}
}
}
scanner.close();
}
catch (java.lang.NoClassDefFoundError e) {
System.err.println("OS::Linux::getFreeMemory error " + e + " mostly because Scanner class was introducted by Java 5 and you are running a lower version");
}
catch (Exception e) {
e.printStackTrace();
}
return 0;
}
@Override
public String getCUDALib() {
return "cuda";
}
@Override
public Process exec(List<String> command, Map<String, String> env_overight) throws IOException {
// the renderer have a lib directory so add to the LD_LIBRARY_PATH
// (even if we are not sure that it is the renderer who is launch
Map<String, String> new_env = new HashMap<String, String>();
new_env.putAll(java.lang.System.getenv()); // clone the env
Boolean has_ld_library_path = new_env.containsKey("LD_LIBRARY_PATH");
String lib_dir = (new File(command.get(0))).getParent() + File.separator + "lib";
if (has_ld_library_path == false) {
new_env.put("LD_LIBRARY_PATH", lib_dir);
}
else {
new_env.put("LD_LIBRARY_PATH", new_env.get("LD_LIBRARY_PATH") + ":" + lib_dir);
}
List<String> actual_command = command;
if (this.hasNiceBinary == null) {
this.checkNiceAvailability();
}
if (this.hasNiceBinary.booleanValue()) {
// launch the process in lowest priority
if (env_overight != null) {
actual_command.add(0, env_overight.get("PRIORITY"));
}
else {
actual_command.add(0, "19");
}
actual_command.add(0, "-n");
actual_command.add(0, NICE_BINARY_PATH);
}
else {
Log.getInstance(null).error("No low priority binary, will not launch renderer in normal priority");
}
ProcessBuilder builder = new ProcessBuilder(actual_command);
builder.redirectErrorStream(true);
Map<String, String> env = builder.environment();
env.putAll(new_env);
if (env_overight != null) {
env.putAll(env_overight);
}
return builder.start();
}
@Override
public boolean getSupportHighPriority() {
// only the root user can create process with high (negative nice) value
String logname = System.getenv("LOGNAME");
String user = System.getenv("USER");
if ((logname != null && logname.equals("root")) || (user != null && user.equals("root"))) {
return true;
}
return false;
}
protected void checkNiceAvailability() {
ProcessBuilder builder = new ProcessBuilder();
builder.command(NICE_BINARY_PATH);
builder.redirectErrorStream(true);
Process process = null;
try {
process = builder.start();
this.hasNiceBinary = true;
}
catch (IOException e) {
this.hasNiceBinary = false;
Log.getInstance(null).error("Failed to find low priority binary, will not launch renderer in normal priority (" + e + ")");
}
finally {
if (process != null) {
process.destroy();
}
}
}
}