1 /*
2 * Copyright (c) 2018-2020 Arm Limited.
3 *
4 * SPDX-License-Identifier: MIT
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a copy
7 * of this software and associated documentation files (the "Software"), to
8 * deal in the Software without restriction, including without limitation the
9 * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
10 * sell copies of the Software, and to permit persons to whom the Software is
11 * furnished to do so, subject to the following conditions:
12 *
13 * The above copyright notice and this permission notice shall be included in all
14 * copies or substantial portions of the Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
19 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
22 * SOFTWARE.
23 */
24 #ifndef ARM_COMPUTE_GRAPH_BACKEND_REGISTRY_H
25 #define ARM_COMPUTE_GRAPH_BACKEND_REGISTRY_H
26
27 #include "arm_compute/graph/IDeviceBackend.h"
28 #include "arm_compute/graph/Types.h"
29
30 #include <map>
31 #include <memory>
32
33 namespace arm_compute
34 {
35 namespace graph
36 {
37 namespace backends
38 {
39 /** Registry holding all the supported backends */
40 class BackendRegistry final
41 {
42 public:
43 /** Gets backend registry instance
44 *
45 * @return Backend registry instance
46 */
47 static BackendRegistry &get();
48 /** Finds a backend in the registry
49 *
50 * @param[in] target Backend target
51 *
52 * @return Pointer to the backend interface if found, else nullptr
53 */
54 IDeviceBackend *find_backend(Target target);
55
56 /** Get a backend from the registry
57 *
58 * The backend must be present and supported.
59 *
60 * @param[in] target Backend target
61 *
62 * @return Reference to the backend interface
63 */
64 IDeviceBackend &get_backend(Target target);
65 /** Checks if a backend for a given target exists
66 *
67 * @param[in] target Execution target
68 *
69 * @return True if exists else false
70 */
71 bool contains(Target target) const;
72 /** Backends accessor
73 *
74 * @return Map containing the registered backends
75 */
76 const std::map<Target, std::unique_ptr<IDeviceBackend>> &backends() const;
77 /** Registers a backend to the registry
78 *
79 * @param[in] target Execution target to register for
80 */
81 template <typename T>
82 void add_backend(Target target);
83
84 private:
85 /** Default Constructor */
86 BackendRegistry();
87
88 private:
89 std::map<Target, std::unique_ptr<IDeviceBackend>> _registered_backends;
90 };
91
92 template <typename T>
add_backend(Target target)93 inline void BackendRegistry::add_backend(Target target)
94 {
95 _registered_backends[target] = std::make_unique<T>();
96 }
97 } // namespace backends
98 } // namespace graph
99 } // namespace arm_compute
100 #endif /* ARM_COMPUTE_GRAPH_BACKEND_REGISTRY_H */
101