1 /*
2  * Copyright (C) 2015 The Android Open Source Project
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  *      http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16 
17 #ifndef ART_RUNTIME_RUNTIME_OPTIONS_H_
18 #define ART_RUNTIME_RUNTIME_OPTIONS_H_
19 
20 #include "runtime/base/variant_map.h"
21 #include "cmdline/cmdline_types.h"  // TODO: don't need to include this file here
22 
23 // Map keys
24 #include <vector>
25 #include <string>
26 #include "runtime/base/logging.h"
27 #include "cmdline/unit.h"
28 #include "jdwp/jdwp.h"
29 #include "jit/jit.h"
30 #include "jit/jit_code_cache.h"
31 #include "gc/collector_type.h"
32 #include "gc/space/large_object_space.h"
33 #include "profiler_options.h"
34 #include "arch/instruction_set.h"
35 #include <stdio.h>
36 #include <stdarg.h>
37 
38 namespace art {
39 
40 class CompilerCallbacks;
41 class DexFile;
42 struct XGcOption;
43 struct BackgroundGcOption;
44 struct TestProfilerOptions;
45 
46 #define DECLARE_KEY(Type, Name) static const Key<Type> Name
47 
48   // Define a key that is usable with a RuntimeArgumentMap.
49   // This key will *not* work with other subtypes of VariantMap.
50   template <typename TValue>
51   struct RuntimeArgumentMapKey : VariantMapKey<TValue> {
RuntimeArgumentMapKeyRuntimeArgumentMapKey52     RuntimeArgumentMapKey() {}
RuntimeArgumentMapKeyRuntimeArgumentMapKey53     explicit RuntimeArgumentMapKey(TValue default_value)
54       : VariantMapKey<TValue>(std::move(default_value)) {}
55     // Don't ODR-use constexpr default values, which means that Struct::Fields
56     // that are declared 'static constexpr T Name = Value' don't need to have a matching definition.
57   };
58 
59   // Defines a type-safe heterogeneous key->value map.
60   // Use the VariantMap interface to look up or to store a RuntimeArgumentMapKey,Value pair.
61   //
62   // Example:
63   //    auto map = RuntimeArgumentMap();
64   //    map.Set(RuntimeArgumentMap::HeapTargetUtilization, 5.0);
65   //    double *target_utilization = map.Get(RuntimeArgumentMap);
66   //
67   struct RuntimeArgumentMap : VariantMap<RuntimeArgumentMap, RuntimeArgumentMapKey> {
68     // This 'using' line is necessary to inherit the variadic constructor.
69     using VariantMap<RuntimeArgumentMap, RuntimeArgumentMapKey>::VariantMap;
70 
71     // Make the next many usages of Key slightly shorter to type.
72     template <typename TValue>
73     using Key = RuntimeArgumentMapKey<TValue>;
74 
75     // List of key declarations, shorthand for 'static const Key<T> Name'
76 #define RUNTIME_OPTIONS_KEY(Type, Name, ...) static const Key<Type> Name;
77 #include "runtime_options.def"
78   };
79 
80 #undef DECLARE_KEY
81 
82   // using RuntimeOptions = RuntimeArgumentMap;
83 }  // namespace art
84 
85 #endif  // ART_RUNTIME_RUNTIME_OPTIONS_H_
86