internal static string FormatArguments(int parentPid, PostMortemSettings postMortemSettings)
{
var builder = new StringBuilder();
builder.Append(parentPid);
if (postMortemSettings != null)
{
builder.Append(" ");
builder.Append(postMortemSettings.CollectMinidumps);
builder.Append(" ");
builder.Append(postMortemSettings.SuppressErrorWindows);
builder.Append(" ");
builder.Append(postMortemSettings.HandleAccessViolations);
builder.Append(" ");
builder.Append(postMortemSettings.HandleCrtAsserts);
builder.Append(" ");
builder.Append(postMortemSettings.HandleCrtPureVirtualFunctionCalls);
builder.Append(" ");
builder.Append(((int)postMortemSettings.RuntimeVersions).ToString(CultureInfo.InvariantCulture));
builder.Append(" ");
builder.Append(postMortemSettings.NumMinidumpsRetained);
builder.Append(" ");
builder.Append(postMortemSettings.MinidumpFolder ?? Path.GetTempPath());
builder.Append(" ");
builder.Append(postMortemSettings.MinidumpName ?? "<Unused>");
}
return(builder.ToString());
}
/// <summary>
/// Initializes a new instance of this ProcessWatchdog with the specified options.
/// The given host process will only be started once <see cref="Start()" /> is called.
/// </summary>
/// <param name="process"></param>
/// <param name="options"></param>
/// <param name="postMortemSettings">The settings for the post mortem debugger of the host process, if none are specified then no post mortem debugging is performed</param>
/// <param name="processReadyTimeout">The amount of time the host process has to report being ready before it is assumed to be dead</param>
/// <exception cref="ArgumentNullException">
/// When <paramref name="process" /> is null
/// </exception>
/// <exception cref="ArgumentException">
/// When <paramref name="process" /> is contains only whitespace
/// </exception>
public ProcessWatchdog(
string process = SharpRemoteHost,
ProcessOptions options = ProcessOptions.HideConsole,
PostMortemSettings postMortemSettings = null,
TimeSpan?processReadyTimeout = null
)
{
if (process == null)
{
throw new ArgumentNullException(nameof(process));
}
if (string.IsNullOrWhiteSpace(process))
{
throw new ArgumentException("process");
}
if (postMortemSettings != null && !postMortemSettings.IsValid)
{
throw new ArgumentException("postMortemSettings");
}
if (postMortemSettings != null)
{
_postMortemSettings = postMortemSettings.Clone();
if (_postMortemSettings.MinidumpFolder != null)
{
_postMortemSettings.MinidumpFolder = _postMortemSettings.MinidumpFolder.Replace('/', '\\');
if (!_postMortemSettings.MinidumpFolder.EndsWith("\\"))
{
_postMortemSettings.MinidumpFolder += '\\';
}
}
}
_processReadyTimeout = processReadyTimeout ?? new FailureSettings().ProcessReadyTimeout;
_waitHandle = new ManualResetEvent(false);
_hostedProcessState = HostState.BootPending;
_syncRoot = new object();
_parentPid = Process.GetCurrentProcess().Id;
_startInfo = new ProcessStartInfo(process)
{
Arguments = FormatArguments(_parentPid, _postMortemSettings),
RedirectStandardOutput = true,
UseShellExecute = false
};
switch (options)
{
case ProcessOptions.HideConsole:
_startInfo.CreateNoWindow = true;
break;
case ProcessOptions.ShowConsole:
_startInfo.CreateNoWindow = false;
break;
}
_hasProcessExited = true;
}
/// <summary>
/// Initializes a new silo server.
/// </summary>
/// <param name="args">The command line arguments given to the Main() method</param>
/// <param name="customTypeResolver">The type resolver, if any, responsible for resolving Type objects by their assembly qualified name</param>
/// <param name="codeGenerator">The code generator to create proxy and servant types</param>
/// <param name="postMortemSettings">
/// Settings to control how and if minidumps are collected - when set to null, default values are used (
/// <see
/// cref="PostMortemSettings" />
/// )
/// </param>
/// <param name="heartbeatSettings">The settings for heartbeat mechanism, if none are specified, then default settings are used</param>
/// <param name="latencySettings">The settings for latency measurements, if none are specified, then default settings are used</param>
/// <param name="endPointSettings">The settings for the endpoint itself (max. number of concurrent calls, etc...)</param>
/// <param name="endPointName">The name of this silo, used for debugging (and logging)</param>
public OutOfProcessSiloServer(string[] args,
ITypeResolver customTypeResolver = null,
ICodeGenerator codeGenerator = null,
PostMortemSettings postMortemSettings = null,
HeartbeatSettings heartbeatSettings = null,
LatencySettings latencySettings = null,
EndPointSettings endPointSettings = null,
string endPointName = null)
{
if (postMortemSettings != null && !postMortemSettings.IsValid)
{
throw new ArgumentException("postMortemSettings");
}
Log.InfoFormat("Silo Server starting, args ({0}): \"{1}\", {2} custom type resolver",
args.Length,
string.Join(" ", args),
customTypeResolver != null ? "with" : "without"
);
int pid;
if (args.Length >= 1 && int.TryParse(args[0], out pid))
{
_parentProcessId = pid;
_parentProcess = Process.GetProcessById(pid);
_parentProcess.EnableRaisingEvents = true;
_parentProcess.Exited += ParentProcessOnExited;
}
if (Log.IsDebugEnabled)
{
Log.DebugFormat("Args.Length: {0}", args.Length);
}
if (args.Length >= 10)
{
if (postMortemSettings != null)
{
Log.Info("Ignoring post-mortem settings specified from the command-line");
}
else
{
var settings = new PostMortemSettings();
bool.TryParse(args[1], out settings.CollectMinidumps);
bool.TryParse(args[2], out settings.SuppressErrorWindows);
bool.TryParse(args[3], out settings.HandleAccessViolations);
bool.TryParse(args[4], out settings.HandleCrtAsserts);
bool.TryParse(args[5], out settings.HandleCrtPureVirtualFunctionCalls);
int tmp;
int.TryParse(args[6], out tmp);
settings.RuntimeVersions = (CRuntimeVersions)tmp;
int.TryParse(args[7], out settings.NumMinidumpsRetained);
settings.MinidumpFolder = args[8];
settings.MinidumpName = args[9];
if (!settings.IsValid)
{
Log.ErrorFormat("Received invalid post-mortem debugger settings: {0}", settings);
}
else
{
postMortemSettings = settings;
}
}
}
_registry = new DefaultImplementationRegistry();
_waitHandle = new ManualResetEvent(false);
_customTypeResolver = customTypeResolver;
_postMortemSettings = postMortemSettings;
if (_postMortemSettings != null)
{
Log.InfoFormat("Using post-mortem debugger: {0}", _postMortemSettings);
if (!NativeMethods.LoadPostmortemDebugger())
{
int err = Marshal.GetLastWin32Error();
Log.ErrorFormat("Unable to load the post-mortem debugger dll: {0}",
err);
}
if (_postMortemSettings.CollectMinidumps)
{
if (NativeMethods.InitDumpCollection(_postMortemSettings.NumMinidumpsRetained,
_postMortemSettings.MinidumpFolder,
_postMortemSettings.MinidumpName))
{
Log.InfoFormat("Installed post-mortem debugger; up to {0} mini dumps will automatically be saved to: {1}",
_postMortemSettings.NumMinidumpsRetained,
_postMortemSettings.MinidumpFolder
);
}
}
NativeMethods.InstallPostmortemDebugger(_postMortemSettings.HandleAccessViolations,
_postMortemSettings.SuppressErrorWindows,
_postMortemSettings.HandleCrtAsserts,
_postMortemSettings.HandleCrtPureVirtualFunctionCalls,
_postMortemSettings.RuntimeVersions);
}
_endPoint = new SocketEndPoint(EndPointType.Server,
endPointName,
codeGenerator: codeGenerator,
heartbeatSettings: heartbeatSettings,
latencySettings: latencySettings,
endPointSettings: endPointSettings
);
_endPoint.OnConnected += EndPointOnOnConnected;
_endPoint.OnDisconnected += EndPointOnOnDisconnected;
_endPoint.OnFailure += EndPointOnOnFailure;
}
/// <summary>
/// Initializes a new instance of this silo with the specified options.
/// The given host process will only be started once <see cref="Start" /> is called.
/// </summary>
/// <param name="process"></param>
/// <param name="options"></param>
/// <param name="codeGenerator">The code generator to create proxy and servant types</param>
/// <param name="latencySettings">
/// The settings for latency measurements, if none are specified, then default settings are
/// used
/// </param>
/// <param name="postMortemSettings">
/// The settings for the post mortem debugger of the host process, if none are specified
/// then no post mortem debugging is performed
/// </param>
/// <param name="endPointSettings">The settings for the endpoint itself (max. number of concurrent calls, etc...)</param>
/// <param name="failureSettings">
/// The settings specifying when a failure is assumed to have occured in the host process -
/// if none are specified, then defaults are used
/// </param>
/// <param name="failureHandler">
/// The object responsible for deciding how failures are dealt with - if none is specified
/// then a new <see cref="ZeroFailureToleranceStrategy" /> is used
/// </param>
/// <param name="endPointName">The name of the endpoint - used in log messages to differentiate between different endpoints</param>
/// <exception cref="ArgumentNullException">When <paramref name="process" /> is null</exception>
/// <exception cref="ArgumentException">When <paramref name="process" /> is contains only whitespace</exception>
public OutOfProcessSilo(
string process = ProcessWatchdog.SharpRemoteHost,
ProcessOptions options = ProcessOptions.HideConsole,
ICodeGenerator codeGenerator = null,
LatencySettings latencySettings = null,
PostMortemSettings postMortemSettings = null,
EndPointSettings endPointSettings = null,
FailureSettings failureSettings = null,
IFailureHandler failureHandler = null,
string endPointName = null
)
{
if (process == null)
{
throw new ArgumentNullException(nameof(process));
}
if (string.IsNullOrWhiteSpace(process))
{
throw new ArgumentException("process");
}
if (postMortemSettings != null && !postMortemSettings.IsValid)
{
throw new ArgumentException("postMortemSettings");
}
if (failureSettings != null)
{
if (failureSettings.ProcessReadyTimeout <= TimeSpan.Zero)
{
throw new ArgumentOutOfRangeException(nameof(failureSettings), "ProcessReadyTimeout should be greater than zero");
}
if (failureSettings.EndPointConnectTimeout <= TimeSpan.Zero)
{
throw new ArgumentOutOfRangeException(nameof(failureSettings),
"EndPointConnectTimeout should be greater than zero");
}
}
failureSettings = failureSettings ?? new FailureSettings();
failureHandler = failureHandler ?? new ZeroFailureToleranceStrategy();
_endPoint = new SocketEndPoint(EndPointType.Client,
endPointName,
codeGenerator: codeGenerator,
heartbeatSettings: failureSettings.HeartbeatSettings,
latencySettings: latencySettings,
endPointSettings: endPointSettings);
_subjectHost = _endPoint.CreateProxy <ISubjectHost>(Constants.SubjectHostId);
_syncRoot = new object();
_process = new ProcessWatchdog(
process,
options,
postMortemSettings
);
_process.OnHostOutputWritten += EmitHostOutputWritten;
_queue = new OutOfProcessQueue(
_process,
_endPoint,
failureHandler,
failureSettings
);
_queue.OnHostStarted += QueueOnOnHostStarted;
}