/// <summary>Gets an array of module infos for the specified process.</summary>
/// <param name="processId">The ID of the process whose modules should be enumerated.</param>
/// <returns>The array of modules.</returns>
internal static ProcessModuleCollection GetModules(int processId)
{
ProcessModuleCollection modules = Interop.procfs.ParseMapsModules(processId) ?? new(capacity : 0);
// Move the main executable module to be the first in the list if it's not already
if (Process.GetExePath(processId) is string exePath)
{
for (int i = 0; i < modules.Count; i++)
{
ProcessModule module = modules[i];
if (module.FileName == exePath)
{
if (i > 0)
{
modules.RemoveAt(i);
modules.Insert(0, module);
}
break;
}
}
}
// Return the set of modules found
return(modules);
}
/// <summary>Gets an array of module infos for the specified process.</summary>
/// <param name="processId">The ID of the process whose modules should be enumerated.</param>
/// <returns>The array of modules.</returns>
internal static ProcessModuleCollection GetModules(int processId)
{
var modules = new ProcessModuleCollection(0);
// Process from the parsed maps file each entry representing a module
foreach (Interop.procfs.ParsedMapsModule entry in Interop.procfs.ParseMapsModules(processId))
{
int sizeOfImage = (int)(entry.AddressRange.Value - entry.AddressRange.Key);
// A single module may be split across multiple map entries; consolidate based on
// the name and address ranges of sequential entries.
if (modules.Count > 0)
{
ProcessModule module = modules[modules.Count - 1];
if (module.FileName == entry.FileName &&
((long)module.BaseAddress + module.ModuleMemorySize == entry.AddressRange.Key))
{
// Merge this entry with the previous one
module.ModuleMemorySize += sizeOfImage;
continue;
}
}
// It's not a continuation of a previous entry but a new one: add it.
unsafe
{
modules.Add(new ProcessModule()
{
FileName = entry.FileName,
ModuleName = Path.GetFileName(entry.FileName),
BaseAddress = new IntPtr(unchecked ((void *)entry.AddressRange.Key)),
ModuleMemorySize = sizeOfImage,
EntryPointAddress = IntPtr.Zero // unknown
});
}
}
// Move the main executable module to be the first in the list if it's not already
string exePath = Process.GetExePath(processId);
for (int i = 0; i < modules.Count; i++)
{
ProcessModule module = modules[i];
if (module.FileName == exePath)
{
if (i > 0)
{
modules.RemoveAt(i);
modules.Insert(0, module);
}
break;
}
}
// Return the set of modules found
return(modules);
}
/// <summary>
/// Creates a ProcessInfo from the data parsed from a /proc/pid/stat file and the associated tasks directory.
/// </summary>
internal static ProcessInfo CreateProcessInfo(Interop.procfs.ParsedStat procFsStat, ReusableTextReader reusableReader)
{
int pid = procFsStat.pid;
// Get long process name if possible, otherwise use a fall back method.
string procName = Path.GetFileName(Process.GetExePath(pid));
if (string.IsNullOrEmpty(procName))
{
procName = procFsStat.comm;
}
var pi = new ProcessInfo()
{
ProcessId = pid,
ProcessName = procName,
BasePriority = (int)procFsStat.nice,
VirtualBytes = (long)procFsStat.vsize,
WorkingSet = procFsStat.rss * Environment.SystemPageSize,
SessionId = procFsStat.session,
// We don't currently fill in the other values.
// A few of these could probably be filled in from getrusage,
// but only for the current process or its children, not for
// arbitrary other processes.
};
// Then read through /proc/pid/task/ to find each thread in the process...
string tasksDir = Interop.procfs.GetTaskDirectoryPathForProcess(pid);
try
{
foreach (string taskDir in Directory.EnumerateDirectories(tasksDir))
{
// ...and read its associated /proc/pid/task/tid/stat file to create a ThreadInfo
string dirName = Path.GetFileName(taskDir);
int tid;
Interop.procfs.ParsedStat stat;
if (int.TryParse(dirName, NumberStyles.Integer, CultureInfo.InvariantCulture, out tid) &&
Interop.procfs.TryReadStatFile(pid, tid, out stat, reusableReader))
{
unsafe
{
pi._threadInfoList.Add(new ThreadInfo()
{
_processId = pid,
_threadId = (ulong)tid,
_basePriority = pi.BasePriority,
_currentPriority = (int)stat.nice,
_startAddress = IntPtr.Zero,
_threadState = ProcFsStateToThreadState(stat.state),
_threadWaitReason = ThreadWaitReason.Unknown
});
}
}
}
}
catch (IOException)
{
// Between the time that we get an ID and the time that we try to read the associated
// directories and files in procfs, the process could be gone.
}
// Finally return what we've built up
return(pi);
}
