src/gallium/state_trackers/clover/api/util.hpp

   1 //
   2 // Copyright 2012 Francisco Jerez
   3 //
   4 // Permission is hereby granted, free of charge, to any person obtaining a
   5 // copy of this software and associated documentation files (the "Software"),
   6 // to deal in the Software without restriction, including without limitation
   7 // the rights to use, copy, modify, merge, publish, distribute, sublicense,
   8 // and/or sell copies of the Software, and to permit persons to whom the
   9 // Software is furnished to do so, subject to the following conditions:
  10 //
  11 // The above copyright notice and this permission notice shall be included in
  12 // all copies or substantial portions of the Software.
  13 //
  14 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  15 // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  16 // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  17 // THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
  18 // OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
  19 // ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
  20 // OTHER DEALINGS IN THE SOFTWARE.
  21 //
  22
  23 #ifndef CLOVER_API_UTIL_HPP
  24 #define CLOVER_API_UTIL_HPP
  25
  26 #include <cassert>
  27
  28 #include "core/error.hpp"
  29 #include "core/property.hpp"
  30 #include "util/algorithm.hpp"
  31
  32 namespace clover {
  33    ///
  34    /// Convert a NULL-terminated property list into an std::map.
  35    ///
  36    template<typename T>
  37    std::map<T, T>
  38    property_map(const T *props) {
  39       std::map<T, T> m;
  40
  41       while (props && *props) {
  42          T key = *props++;
  43          T value = *props++;
  44
  45          if (m.count(key))
  46             throw clover::error(CL_INVALID_PROPERTY);
  47
  48          m.insert({ key, value });
  49       }
  50
  51       return m;
  52    }
  53
  54    ///
  55    /// Convert an std::map into a NULL-terminated property list.
  56    ///
  57    template<typename T>
  58    std::vector<T>
  59    property_vector(const std::map<T, T> &m) {
  60       std::vector<T> v;
  61
  62       for (auto &p : m) {
  63          v.push_back(p.first);
  64          v.push_back(p.second);
  65       }
  66
  67       v.push_back(0);
  68       return v;
  69    }
  70
  71    ///
  72    /// Return an error code in \a p if non-zero.
  73    ///
  74    inline void
  75    ret_error(cl_int *p, const clover::error &e) {
  76       if (p)
  77          *p = e.get();
  78    }
  79
  80    ///
  81    /// Return a reference-counted object in \a p if non-zero.
  82    /// Otherwise release object ownership.
  83    ///
  84    template<typename T, typename S>
  85    void
  86    ret_object(T p, S v) {
  87       if (p)
  88          *p = v;
  89       else
  90          v->release();
  91    }
  92 }
  93
  94 #endif