public static ProcessInfoLinux Create(LockInfo li)
{
if (li.ProcessId == -1)
{
// Can happen for OFD (open file descriptor) locks which are not
// bound to a specific process.
return(new ProcessInfoLinux(li.ProcessId, DateTime.MinValue)
{
LockAccess = li.LockAccess,
LockMode = li.LockMode,
LockType = li.LockType,
ApplicationName = $"({li.LockType};{li.LockAccess};{li.LockMode})"
});
}
ProcessInfoLinux result = null;
try
{
using (var process = Process.GetProcessById(li.ProcessId))
{
result = new ProcessInfoLinux(li.ProcessId, process.StartTime)
{
SessionId = process.SessionId,
ApplicationName = process.ProcessName
};
// MainModule may be null, if no permissions, etc.
// Note: alternative of "readlink -f /proc/<pid>/exe" will
// also yield results in this case.
if (process.MainModule != null)
{
result.ExecutableFullPath = process.MainModule.FileName;
result.ExecutableName = Path.GetFileName(result.ExecutableFullPath);
}
else
{
result.ExecutableFullPath = process.ProcessName;
result.ExecutableName = process.ProcessName;
}
}
}
catch (ArgumentException)
{
// Process already gone/does not exist.
}
if (result != null)
{
// TryGetUid() fails if process is gone (because directory is gone);
// GetUserName() should not fail because it looks up information in
// passwd, which is not bound in lifetime to the process of course.
if (NativeMethods.TryGetUid($"/proc/{li.ProcessId}", out uint uid))
{
result.Owner = NativeMethods.GetUserName(uid);
}
}
return(result);
}
public static IEnumerable <ProcessInfo> GetLockingProcessInfos(params string[] paths)
{
if (paths == null)
{
throw new ArgumentNullException(nameof(paths));
}
Dictionary <long, string> inodesToPaths = null;
using (var reader = new StreamReader("/proc/locks"))
{
string line;
while ((line = reader.ReadLine()) != null)
{
if (inodesToPaths == null)
{
inodesToPaths = GetInodeToPaths(paths);
}
var lockInfo = LockInfo.ParseLine(line);
if (inodesToPaths.ContainsKey(lockInfo.InodeInfo.INodeNumber))
{
var processInfo = ProcessInfoLinux.Create(lockInfo);
if (processInfo != null)
{
yield return(processInfo);
}
}
}
}
}
