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 #include "support/MemorySupport.h"
30
31 #include <map>
32 #include <memory>
33
34 namespace arm_compute
35 {
36 namespace graph
37 {
38 namespace backends
39 {
40 /** Registry holding all the supported backends */
41 class BackendRegistry final
42 {
43 public:
44 /** Gets backend registry instance
45 *
46 * @return Backend registry instance
47 */
48 static BackendRegistry &get();
49 /** Finds a backend in the registry
50 *
51 * @param[in] target Backend target
52 *
53 * @return Pointer to the backend interface if found, else nullptr
54 */
55 IDeviceBackend *find_backend(Target target);
56
57 /** Get a backend from the registry
58 *
59 * The backend must be present and supported.
60 *
61 * @param[in] target Backend target
62 *
63 * @return Reference to the backend interface
64 */
65 IDeviceBackend &get_backend(Target target);
66 /** Checks if a backend for a given target exists
67 *
68 * @param[in] target Execution target
69 *
70 * @return True if exists else false
71 */
72 bool contains(Target target) const;
73 /** Backends accessor
74 *
75 * @return Map containing the registered backends
76 */
77 const std::map<Target, std::unique_ptr<IDeviceBackend>> &backends() const;
78 /** Registers a backend to the registry
79 *
80 * @param[in] target Execution target to register for
81 */
82 template <typename T>
83 void add_backend(Target target);
84
85 private:
86 /** Default Constructor */
87 BackendRegistry();
88
89 private:
90 std::map<Target, std::unique_ptr<IDeviceBackend>> _registered_backends;
91 };
92
93 template <typename T>
add_backend(Target target)94 inline void BackendRegistry::add_backend(Target target)
95 {
96 _registered_backends[target] = support::cpp14::make_unique<T>();
97 }
98 } // namespace backends
99 } // namespace graph
100 } // namespace arm_compute
101 #endif /* ARM_COMPUTE_GRAPH_BACKEND_REGISTRY_H */
102