public static MemcachedProcess Attach(int pid)
{
MemcachedProcess mcproc;
Process nativeProcess;
nativeProcess = Process.GetProcessById(pid);
if (nativeProcess == null)
{
Log.Critical("Pid {0} could not be found", pid);
return(null);
}
nativeProcess.Exited += Process_Exited;
nativeProcess.EnableRaisingEvents = true;
mcproc = new MemcachedProcess();
mcproc.process = nativeProcess;
if (!_Processes.ContainsKey(mcproc.process.Id))
{
_Processes.Add(mcproc.process.Id, mcproc);
}
Log.Info("Pid {0} attached successfuly as memcachedprocess", pid);
return(mcproc);
}
private void Process_Exited(object sender, EventArgs e)
{
MemcachedProcess process = sender as MemcachedProcess;
string instanceName;
instanceName = process.Tag as string;
RemoveInstance(instanceName);
}
public static MemcachedProcess FireUp(ulong memSize, ushort port)
{
MemcachedProcess mcproc = null;
string arg;
ProcessStartInfo psi = null;
arg = string.Format("-p {0} -m {1}", port, memSize);
psi = new ProcessStartInfo(Config.Get().MemcachedPath, arg);
psi.CreateNoWindow = true;
psi.UseShellExecute = false;
mcproc = new MemcachedProcess();
try
{
mcproc.process = new Process();
mcproc.process.EnableRaisingEvents = true;
mcproc.process.Exited += Process_Exited;
mcproc.process.StartInfo = psi;
if (!mcproc.process.Start())
{
mcproc.process = null;
mcproc = null;
Log.Error("Process could not be started");
return(null);
}
}
catch (Exception e)
{
mcproc = null;
Log.Error("memcached process start error: %s", e.Message);
return(null);
}
if (!_Processes.ContainsKey(mcproc.process.Id))
{
_Processes.Add(mcproc.process.Id, mcproc);
}
return(mcproc);
}
public bool Start()
{
if (!PutInstance(this, this.name))
{
throw new Exception(string.Format("{0} is already registered!", this.name));
}
process = MemcachedProcess.FireUp(this.memSize, this.port);
if (process == null)
{
RemoveInstance(this.name);
return(false);
}
process.Tag = this.name;
process.Exited += Process_Exited;
return(true);
}
public static MemcachedInstance CreateInstanceFromExist(int pid, ushort port, string name)
{
MemcachedInstance inst = new MemcachedInstance(0, name, port);
if (!inst.PutInstance(inst, inst.name))
{
throw new Exception(string.Format("{0} is already registered!", inst.name));
}
inst.process = MemcachedProcess.Attach(pid);
if (inst.process == null)
{
inst.RemoveInstance(name);
inst = null;
return(null);
}
inst.process.Tag = name;
inst.process.Exited += inst.Process_Exited;
return(inst);
}
