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 <string>
  27 #include <vector>
  28
  29 #include "common/entity_name.h"
  30
  31 /////////////////////// Types ///////////////////////
  32 class CephInitParameters
  33 {
  34 public:
  35   explicit CephInitParameters(uint32_t module_type_);
  36   std::list<std::string> get_conf_files() const;
  37
  38   uint32_t module_type;
  39   EntityName name;
  40 };
  41
  42 /////////////////////// Functions ///////////////////////
  43 extern void string_to_vec(std::vector<std::string>& args, std::string argstr);
  44 extern void clear_g_str_vec();
  45 extern void env_to_vec(std::vector<const char*>& args, const char *name=NULL);
  46 extern void argv_to_vec(int argc, const char **argv,
  47                  std::vector<const char*>& args);
  48 extern void vec_to_argv(const char *argv0, std::vector<const char*>& args,
  49                         int *argc, const char ***argv);
  50
  51 extern bool parse_ip_port_vec(const char *s, std::vector<entity_addr_t>& vec);
  52 bool ceph_argparse_double_dash(std::vector<const char*> &args,
  53         std::vector<const char*>::iterator &i);
  54 bool ceph_argparse_flag(std::vector<const char*> &args,
  55         std::vector<const char*>::iterator &i, ...);
  56 bool ceph_argparse_witharg(std::vector<const char*> &args,
  57         std::vector<const char*>::iterator &i, std::string *ret,
  58         std::ostream &oss, ...);
  59 bool ceph_argparse_witharg(std::vector<const char*> &args,
  60         std::vector<const char*>::iterator &i, std::string *ret, ...);
  61 template<class T>
  62 bool ceph_argparse_witharg(std::vector<const char*> &args,
  63         std::vector<const char*>::iterator &i, T *ret,
  64         std::ostream &oss, ...);
  65 bool ceph_argparse_binary_flag(std::vector<const char*> &args,
  66         std::vector<const char*>::iterator &i, int *ret,
  67         std::ostream *oss, ...);
  68 extern CephInitParameters ceph_argparse_early_args
  69             (std::vector<const char*>& args, uint32_t module_type,
  70              std::string *cluster, std::string *conf_file_list);
  71 extern void generic_server_usage();
  72 extern void generic_client_usage();
  73
  74 #endif