ceph/src/common/ceph_argparse.h

   1 // -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
   2 // vim: ts=8 sw=2 smarttab
   3 /*
   4  * Ceph - scalable distributed file system
   5  *
   6  * Copyright (C) 2008-2011 New Dream Network
   7  *
   8  * This is free software; you can redistribute it and/or
   9  * modify it under the terms of the GNU Lesser General Public
  10  * License version 2.1, as published by the Free Software
  11  * Foundation.  See file COPYING.
  12  *
  13  */
  14
  15 #ifndef CEPH_ARGPARSE_H
  16 #define CEPH_ARGPARSE_H
  17
  18 /*
  19  * Ceph argument parsing library
  20  *
  21  * We probably should eventually replace this with something standard like popt.
  22  * Until we do that, though, this file is the place for argv parsing
  23  * stuff to live.
  24  */
  25
  26 #include <deque>
  27 #include <stdint.h>
  28 #include <string>
  29 #include <vector>
  30
  31 #include "common/entity_name.h"
  32 #include "msg/msg_types.h"
  33
  34 /////////////////////// Types ///////////////////////
  35 class CephInitParameters
  36 {
  37 public:
  38   explicit CephInitParameters(uint32_t module_type_);
  39   std::list<std::string> get_conf_files() const;
  40
  41   uint32_t module_type;
  42   EntityName name;
  43 };
  44
  45 /////////////////////// Functions ///////////////////////
  46 extern void string_to_vec(std::vector<std::string>& args, std::string argstr);
  47 extern void env_to_vec(std::vector<const char*>& args, const char *name=NULL);
  48 extern void argv_to_vec(int argc, const char **argv,
  49                  std::vector<const char*>& args);
  50 extern void vec_to_argv(const char *argv0, std::vector<const char*>& args,
  51                         int *argc, const char ***argv);
  52
  53 extern bool parse_ip_port_vec(const char *s, std::vector<entity_addr_t>& vec);
  54 bool ceph_argparse_double_dash(std::vector<const char*> &args,
  55         std::vector<const char*>::iterator &i);
  56 bool ceph_argparse_flag(std::vector<const char*> &args,
  57         std::vector<const char*>::iterator &i, ...);
  58 bool ceph_argparse_witharg(std::vector<const char*> &args,
  59         std::vector<const char*>::iterator &i, std::string *ret,
  60         std::ostream &oss, ...);
  61 bool ceph_argparse_witharg(std::vector<const char*> &args,
  62         std::vector<const char*>::iterator &i, std::string *ret, ...);
  63 template<class T>
  64 bool ceph_argparse_witharg(std::vector<const char*> &args,
  65         std::vector<const char*>::iterator &i, T *ret,
  66         std::ostream &oss, ...);
  67 bool ceph_argparse_binary_flag(std::vector<const char*> &args,
  68         std::vector<const char*>::iterator &i, int *ret,
  69         std::ostream *oss, ...);
  70 extern CephInitParameters ceph_argparse_early_args
  71             (std::vector<const char*>& args, uint32_t module_type,
  72              std::string *cluster, std::string *conf_file_list);
  73 extern void generic_server_usage();
  74 extern void generic_client_usage();
  75
  76 #endif