ceph/src/boost/boost/compute/detail/path.hpp

   1 //---------------------------------------------------------------------------//
   2 // Copyright (c) 2013-2014 Kyle Lutz <kyle.r.lutz@gmail.com>
   3 //
   4 // Distributed under the Boost Software License, Version 1.0
   5 // See accompanying file LICENSE_1_0.txt or copy at
   6 // http://www.boost.org/LICENSE_1_0.txt
   7 //
   8 // See http://boostorg.github.com/compute for more information.
   9 //---------------------------------------------------------------------------//
  10
  11 #ifndef BOOST_COMPUTE_DETAIL_PATH_HPP
  12 #define BOOST_COMPUTE_DETAIL_PATH_HPP
  13
  14 #include <boost/filesystem/path.hpp>
  15 #include <boost/filesystem/operations.hpp>
  16 #include <boost/compute/detail/getenv.hpp>
  17
  18 namespace boost {
  19 namespace compute {
  20 namespace detail {
  21
  22 // Path delimiter symbol for the current OS.
  23 static const std::string& path_delim()
  24 {
  25     static const std::string delim =
  26         boost::filesystem::path("/").make_preferred().string();
  27     return delim;
  28 }
  29
  30 // Path to appdata folder.
  31 inline const std::string& appdata_path()
  32 {
  33     #ifdef _WIN32
  34     static const std::string appdata = detail::getenv("APPDATA")
  35         + path_delim() + "boost_compute";
  36     #else
  37     static const std::string appdata = detail::getenv("HOME")
  38         + path_delim() + ".boost_compute";
  39     #endif
  40     return appdata;
  41 }
  42
  43 // Path to cached binaries.
  44 inline std::string program_binary_path(const std::string &hash, bool create = false)
  45 {
  46     std::string dir = detail::appdata_path() + path_delim()
  47                     + hash.substr(0, 2) + path_delim()
  48                     + hash.substr(2);
  49
  50     if(create && !boost::filesystem::exists(dir)){
  51         boost::filesystem::create_directories(dir);
  52     }
  53
  54     return dir + path_delim();
  55 }
  56
  57 // Path to parameter caches.
  58 inline std::string parameter_cache_path(bool create = false)
  59 {
  60     const static std::string dir = appdata_path() + path_delim() + "tune";
  61
  62     if(create && !boost::filesystem::exists(dir)){
  63         boost::filesystem::create_directories(dir);
  64     }
  65
  66     return dir + path_delim();
  67 }
  68
  69 } // end detail namespace
  70 } // end compute namespace
  71 } // end boost namespace
  72
  73 #endif // BOOST_COMPUTE_DETAIL_PATH_HPP