mirror of
https://github.com/google/cpu_features.git
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87 lines
3.1 KiB
C++
87 lines
3.1 KiB
C++
// Copyright 2017 Google LLC
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#ifndef INTROSPECTION_PREFIX
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#error "missing INTROSPECTION_PREFIX"
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#endif
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#ifndef INTROSPECTION_ENUM_PREFIX
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#error "missing INTROSPECTION_ENUM_PREFIX"
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#endif
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#ifndef INTROSPECTION_TABLE
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#error "missing INTROSPECTION_TABLE"
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#endif
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#include <stdbool.h>
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#define STRINGIZE_(s) #s
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#define STRINGIZE(s) STRINGIZE_(s)
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#define FEAT_TYPE_NAME__(X) X##Features
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#define FEAT_TYPE_NAME_(X) FEAT_TYPE_NAME__(X)
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#define FEAT_TYPE_NAME FEAT_TYPE_NAME_(INTROSPECTION_PREFIX)
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#define FEAT_ENUM_NAME__(X) X##FeaturesEnum
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#define FEAT_ENUM_NAME_(X) FEAT_ENUM_NAME__(X)
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#define FEAT_ENUM_NAME FEAT_ENUM_NAME_(INTROSPECTION_PREFIX)
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#define GET_FEAT_ENUM_VALUE__(X) Get##X##FeaturesEnumValue
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#define GET_FEAT_ENUM_VALUE_(X) GET_FEAT_ENUM_VALUE__(X)
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#define GET_FEAT_ENUM_VALUE GET_FEAT_ENUM_VALUE_(INTROSPECTION_PREFIX)
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#define GET_FEAT_ENUM_NAME__(X) Get##X##FeaturesEnumName
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#define GET_FEAT_ENUM_NAME_(X) GET_FEAT_ENUM_NAME__(X)
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#define GET_FEAT_ENUM_NAME GET_FEAT_ENUM_NAME_(INTROSPECTION_PREFIX)
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#define FEAT_ENUM_LAST__(X) X##_LAST_
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#define FEAT_ENUM_LAST_(X) FEAT_ENUM_LAST__(X)
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#define FEAT_ENUM_LAST FEAT_ENUM_LAST_(INTROSPECTION_ENUM_PREFIX)
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// Generate individual getters and setters.
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#define LINE(ENUM, NAME, A, B, C) \
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static void set_##ENUM(FEAT_TYPE_NAME* features, bool value) { \
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features->NAME = value; \
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} \
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static int get_##ENUM(const FEAT_TYPE_NAME* features) { \
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return features->NAME; \
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}
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INTROSPECTION_TABLE
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#undef LINE
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// Generate getters table
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#define LINE(ENUM, NAME, A, B, C) [ENUM] = get_##ENUM,
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static int (*const kGetters[])(const FEAT_TYPE_NAME*) = {INTROSPECTION_TABLE};
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#undef LINE
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// Generate setters table
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#define LINE(ENUM, NAME, A, B, C) [ENUM] = set_##ENUM,
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static void (*const kSetters[])(FEAT_TYPE_NAME*, bool) = {INTROSPECTION_TABLE};
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#undef LINE
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// Implements the `GetXXXFeaturesEnumValue` API.
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int GET_FEAT_ENUM_VALUE(const FEAT_TYPE_NAME* features, FEAT_ENUM_NAME value) {
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if (value >= FEAT_ENUM_LAST) return false;
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return kGetters[value](features);
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}
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// Generate feature name table.
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#define LINE(ENUM, NAME, A, B, C) [ENUM] = STRINGIZE(NAME),
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static const char* kFeatureNames[] = {INTROSPECTION_TABLE};
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#undef LINE
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// Implements the `GetXXXFeaturesEnumName` API.
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const char* GET_FEAT_ENUM_NAME(FEAT_ENUM_NAME value) {
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if (value >= FEAT_ENUM_LAST) return "unknown_feature";
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return kFeatureNames[value];
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}
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