/// <summary>
/// Collects a gcdump from a currently running process.
/// </summary>
/// <param name="ct">The cancellation token</param>
/// <param name="console"></param>
/// <param name="processId">The process to collect the gcdump from.</param>
/// <param name="output">The output path for the collected gcdump.</param>
/// <returns></returns>
private static async Task <int> Collect(CancellationToken ct, IConsole console, int processId, string output, int timeout, bool verbose)
{
try
{
output = string.IsNullOrEmpty(output) ?
$"{DateTime.Now.ToString(@"yyyyMMdd\_hhmmss")}_{processId}.gcdump" :
output;
FileInfo outputFileInfo = new FileInfo(output);
if (outputFileInfo.Exists)
{
outputFileInfo.Delete();
}
if (string.IsNullOrEmpty(outputFileInfo.Extension) || outputFileInfo.Extension != ".gcdump")
{
outputFileInfo = new FileInfo(outputFileInfo.FullName + ".gcdump");
}
Console.Out.WriteLine($"Writing gcdump to '{outputFileInfo.FullName}'...");
var dumpTask = Task.Run(() =>
{
var memoryGraph = new Graphs.MemoryGraph(50_000);
var heapInfo = new DotNetHeapInfo();
if (!EventPipeDotNetHeapDumper.DumpFromEventPipe(ct, processId, memoryGraph, verbose ? Console.Out : TextWriter.Null, timeout, heapInfo))
{
return(false);
}
memoryGraph.AllowReading();
GCHeapDump.WriteMemoryGraph(memoryGraph, outputFileInfo.FullName, "dotnet-gcdump");
return(true);
});
var fDumpSuccess = await dumpTask;
if (fDumpSuccess)
{
outputFileInfo.Refresh();
Console.Out.WriteLine($"\tFinished writing {outputFileInfo.Length} bytes.");
return(0);
}
else if (ct.IsCancellationRequested)
{
Console.Out.WriteLine($"\tCancelled.");
return(-1);
}
else
{
Console.Out.WriteLine($"\tFailed to collect gcdump. Try running with '-v' for more information.");
return(-1);
}
}
catch (Exception ex)
{
Console.Error.WriteLine($"[ERROR] {ex.ToString()}");
return(-1);
}
}
internal static bool TryCollectMemoryGraph(CancellationToken ct, int processId, int timeout, bool verbose,
out MemoryGraph memoryGraph)
{
var heapInfo = new DotNetHeapInfo();
var log = verbose ? Console.Out : TextWriter.Null;
memoryGraph = new MemoryGraph(50_000);
if (!EventPipeDotNetHeapDumper.DumpFromEventPipe(ct, processId, memoryGraph, log, timeout, heapInfo))
{
return(false);
}
memoryGraph.AllowReading();
return(true);
}
/// <summary>
/// Collects a gcdump from a currently running process.
/// </summary>
/// <param name="ct">The cancellation token</param>
/// <param name="console"></param>
/// <param name="processId">The process to collect the gcdump from.</param>
/// <param name="output">The output path for the collected gcdump.</param>
/// <returns></returns>
public static async Task <int> Collect(CancellationToken ct, CommandLineApplication cmd, int processId, string output, int timeout, bool verbose)
{
try
{
if (processId < 0)
{
return(cmd.ExitWithError($"The PID cannot be negative: {processId}"));
}
if (processId == 0)
{
return(cmd.ExitWithError($"-p|--process-id is required"));
}
output = string.IsNullOrEmpty(output) ?
$"{DateTime.Now.ToString(@"yyyyMMdd\_hhmmss")}_{processId}.gcdump" :
output;
FileInfo outputFileInfo = new FileInfo(output);
if (outputFileInfo.Exists)
{
outputFileInfo.Delete();
}
if (string.IsNullOrEmpty(outputFileInfo.Extension) || outputFileInfo.Extension != ".gcdump")
{
outputFileInfo = new FileInfo(outputFileInfo.FullName + ".gcdump");
}
cmd.Out.WriteLine($"Writing gcdump to '{outputFileInfo.FullName}'...");
var dumpTask = Task.Run(() =>
{
var memoryGraph = new Graphs.MemoryGraph(50_000);
var heapInfo = new DotNetHeapInfo();
if (!EventPipeDotNetHeapDumper.DumpFromEventPipe(ct, processId, memoryGraph, verbose ? cmd.Out : TextWriter.Null, timeout, heapInfo))
{
return(false);
}
memoryGraph.AllowReading();
GCHeapDump.WriteMemoryGraph(memoryGraph, outputFileInfo.FullName, "dotnet-gcdump");
return(true);
});
var fDumpSuccess = await dumpTask;
if (fDumpSuccess)
{
outputFileInfo.Refresh();
cmd.Out.WriteLine($"\tFinished writing {new Size(outputFileInfo.Length, SizeUnit.Bytes)}.");
return(0);
}
else if (ct.IsCancellationRequested)
{
cmd.Out.WriteLine($"\tCancelled.");
return(-1);
}
else
{
cmd.Out.WriteLine($"\tFailed to collect gcdump. Try running with '-v' for more information.");
return(-1);
}
}
catch (Exception ex)
{
return(cmd.ExitWithError($"[ERROR] {ex}"));
}
}
