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// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
// vim: ts=8 sw=2 smarttab
/*
* Ceph - scalable distributed file system
*
* Copyright (C) 2016 John Spray <john.spray@redhat.com>
*
* This is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License version 2.1, as published by the Free Software
* Foundation. See file COPYING.
*/
#pragma once
#include "common/Thread.h"
#include "common/LogClient.h"
#include "mgr/Gil.h"
#include "PyModule.h"
/**
* Implement the pattern of calling serve() on a module in a thread,
* until shutdown() is called.
*/
class PyModuleRunner
{
public:
// Info about the module we're going to run
PyModuleRef py_module;
protected:
// Populated by descendent class
PyObject *pClassInstance = nullptr;
LogChannelRef clog;
class PyModuleRunnerThread : public Thread
{
PyModuleRunner *mod;
public:
explicit PyModuleRunnerThread(PyModuleRunner *mod_)
: mod(mod_) {}
void *entry() override;
};
bool is_dead() const { return dead; }
std::string thread_name;
public:
int serve();
void shutdown();
void log(const std::string &record);
const char *get_thread_name() const
{
return thread_name.c_str();
}
PyModuleRunner(
const PyModuleRef &py_module_,
LogChannelRef clog_)
:
py_module(py_module_),
clog(clog_),
thread(this)
{
// Shortened name for use as thread name, because thread names
// required to be <16 chars
thread_name = py_module->get_name().substr(0, 15);
ceph_assert(py_module != nullptr);
}
~PyModuleRunner();
PyModuleRunnerThread thread;
std::string const &get_name() const { return py_module->get_name(); }
private:
bool dead = false;
};
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