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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) 2011 New Dream Network
*
* 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.
*
*/
#ifndef CEPH_COMMON_GLOBAL_INIT_H
#define CEPH_COMMON_GLOBAL_INIT_H
#include <stdint.h>
#include <vector>
#include <map>
#include <boost/intrusive_ptr.hpp>
#include "include/ceph_assert.h"
#include "common/code_environment.h"
#include "common/common_init.h"
class CephContext;
/*
* global_init is the first initialization function that
* daemons and utility programs need to call. It takes care of a lot of
* initialization, including setting up g_ceph_context.
*/
boost::intrusive_ptr<CephContext>
global_init(
const std::map<std::string,std::string> *defaults,
std::vector < const char* >& args,
uint32_t module_type,
code_environment_t code_env,
int flags,
const char *data_dir_option = 0,
bool run_pre_init = true);
void intrusive_ptr_add_ref(CephContext* cct);
void intrusive_ptr_release(CephContext* cct);
// just the first half; enough to get config parsed but doesn't start up the
// cct or log.
void global_pre_init(const std::map<std::string,std::string> *defaults,
std::vector < const char* >& args,
uint32_t module_type, code_environment_t code_env,
int flags);
/*
* perform all of the steps that global_init_daemonize performs just prior
* to actually forking (via daemon(3)). return 0 if we are going to proceed
* with the fork, or -1 otherwise.
*/
int global_init_prefork(CephContext *cct);
/*
* perform all the steps that global_init_daemonize performs just after
* the fork, except closing stderr, which we'll do later on.
*/
void global_init_postfork_start(CephContext *cct);
/*
* close stderr, thus completing the postfork.
*/
void global_init_postfork_finish(CephContext *cct);
/*
* global_init_daemonize handles daemonizing a process.
*
* If this is called, it *must* be called before common_init_finish.
* Note that this is equivalent to calling _prefork(), daemon(), and
* _postfork.
*/
void global_init_daemonize(CephContext *cct);
/*
* global_init_chdir changes the process directory.
*
* If this is called, it *must* be called before common_init_finish
*/
void global_init_chdir(const CephContext *cct);
/*
* Explicitly shut down stderr. Usually, you don't need to do
* this, because global_init_daemonize will do it for you. However, in some
* rare cases you need to call this explicitly.
*
* If this is called, it *must* be called before common_init_finish
*/
int global_init_shutdown_stderr(CephContext *cct);
/*
* Preload the erasure coding libraries to detect early issues with
* configuration.
*/
int global_init_preload_erasure_code(const CephContext *cct);
/**
* print daemon startup banner/warning
*/
void global_print_banner(void);
#endif
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