backends/cxxrtl/cxxrtl_capi.cc

   1 /*
   2  *  yosys -- Yosys Open SYnthesis Suite
   3  *
   4  *  Copyright (C) 2020  whitequark <whitequark@whitequark.org>
   5  *
   6  *  Permission to use, copy, modify, and/or distribute this software for any
   7  *  purpose with or without fee is hereby granted.
   8  *
   9  *  THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
  10  *  WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
  11  *  MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
  12  *  ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
  13  *  WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
  14  *  ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
  15  *  OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  16  *
  17  */
  18
  19 // This file is a part of the CXXRTL C API. It should be used together with `cxxrtl_capi.h`.
  20
  21 #include <backends/cxxrtl/cxxrtl.h>
  22 #include <backends/cxxrtl/cxxrtl_capi.h>
  23
  24 struct _cxxrtl_handle {
  25         std::unique_ptr<cxxrtl::module> module;
  26         cxxrtl::debug_items objects;
  27 };
  28
  29 // Private function for use by other units of the C API.
  30 const cxxrtl::debug_items &cxxrtl_debug_items_from_handle(cxxrtl_handle handle) {
  31         return handle->objects;
  32 }
  33
  34 cxxrtl_handle cxxrtl_create(cxxrtl_toplevel design) {
  35         cxxrtl_handle handle = new _cxxrtl_handle;
  36         handle->module = std::move(design->module);
  37         handle->module->debug_info(handle->objects);
  38         delete design;
  39         return handle;
  40 }
  41
  42 void cxxrtl_destroy(cxxrtl_handle handle) {
  43         delete handle;
  44 }
  45
  46 int cxxrtl_eval(cxxrtl_handle handle) {
  47         return handle->module->eval();
  48 }
  49
  50 int cxxrtl_commit(cxxrtl_handle handle) {
  51         return handle->module->commit();
  52 }
  53
  54 size_t cxxrtl_step(cxxrtl_handle handle) {
  55         return handle->module->step();
  56 }
  57
  58 struct cxxrtl_object *cxxrtl_get_parts(cxxrtl_handle handle, const char *name, size_t *parts) {
  59         auto it = handle->objects.table.find(name);
  60         if (it == handle->objects.table.end())
  61                 return nullptr;
  62         *parts = it->second.size();
  63         return static_cast<cxxrtl_object*>(&it->second[0]);
  64 }
  65
  66 void cxxrtl_enum(cxxrtl_handle handle, void *data,
  67                  void (*callback)(void *data, const char *name,
  68                                   cxxrtl_object *object, size_t parts)) {
  69         for (auto &it : handle->objects.table)
  70                 callback(data, it.first.c_str(), static_cast<cxxrtl_object*>(&it.second[0]), it.second.size());
  71 }