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Lidarr/NzbDrone.Common/ProcessProvider.cs

151 lines
4.5 KiB

using System.Collections.Generic;
using System.Diagnostics;
using System.Linq;
using NLog;
using NzbDrone.Common.EnvironmentInfo;
using NzbDrone.Common.Model;
namespace NzbDrone.Common
{
public interface IProcessProvider
{
ProcessInfo GetCurrentProcess();
ProcessInfo GetProcessById(int id);
IEnumerable<ProcessInfo> GetProcessByName(string name);
Process Start(string path);
Process Start(ProcessStartInfo startInfo);
void WaitForExit(Process process);
void SetPriority(int processId, ProcessPriorityClass priority);
void KillAll(string processName);
}
public class ProcessProvider : IProcessProvider
{
private static readonly Logger Logger = LogManager.GetCurrentClassLogger();
public const string NzbDroneProcessName = "NzbDrone";
public const string NzbDroneConsoleProcessName = "NzbDrone.Console";
public ProcessInfo GetCurrentProcess()
{
return ConvertToProcessInfo(Process.GetCurrentProcess());
}
public ProcessInfo GetProcessById(int id)
{
Logger.Trace("Finding process with Id:{0}", id);
var processInfo = ConvertToProcessInfo(Process.GetProcesses().FirstOrDefault(p => p.Id == id));
if (processInfo == null)
{
Logger.Warn("Unable to find process with ID {0}", id);
}
else
{
Logger.Trace("Found process {0}", processInfo.ToString());
}
return processInfo;
}
public IEnumerable<ProcessInfo> GetProcessByName(string name)
{
if (OsInfo.IsMono)
{
var mono = Process.GetProcessesByName("mono");
return mono.Where(process => process.Modules.Cast<ProcessModule>().Any(module => module.ModuleName.ToLower() == name + ".exe"))
.Select(ConvertToProcessInfo);
}
return Process.GetProcessesByName(name).Select(ConvertToProcessInfo).Where(p => p != null);
}
public Process Start(string path)
{
return Start(new ProcessStartInfo(path));
}
public Process Start(ProcessStartInfo startInfo)
{
Logger.Info("Starting process. [{0}]", startInfo.FileName);
var process = new Process
{
StartInfo = startInfo
};
process.Start();
return process;
}
public void WaitForExit(Process process)
{
Logger.Trace("Waiting for process {0} to exit.", process.ProcessName);
process.WaitForExit();
}
public void SetPriority(int processId, ProcessPriorityClass priority)
{
var process = Process.GetProcessById(processId);
Logger.Info("Updating [{0}] process priority from {1} to {2}",
process.ProcessName,
process.PriorityClass,
priority);
process.PriorityClass = priority;
}
public void KillAll(string processName)
{
var processToKill = GetProcessByName(processName);
foreach (var processInfo in processToKill)
{
Kill(processInfo.Id);
}
}
private static ProcessInfo ConvertToProcessInfo(Process process)
{
if (process == null || process.Id <= 0 || process.HasExited) return null;
return new ProcessInfo
{
Id = process.Id,
Priority = process.PriorityClass,
StartPath = process.MainModule.FileName,
Name = process.ProcessName
};
}
private void Kill(int processId)
{
if (processId == 0 || Process.GetProcesses().All(p => p.Id != processId))
{
Logger.Warn("Cannot find process with id: {0}", processId);
return;
}
var process = Process.GetProcessById(processId);
if (process.HasExited)
{
return;
}
Logger.Info("[{0}]: Killing process", process.Id);
process.Kill();
Logger.Info("[{0}]: Waiting for exit", process.Id);
process.WaitForExit();
Logger.Info("[{0}]: Process terminated successfully", process.Id);
}
}
}