1/*
2 * Copyright (C) 2017 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 VENDOR_MODULES_H
18#define VENDOR_MODULES_H
19
20#include <map>
21#include <vector>
22#include <string>
23
24#include <SharedLibrary.h>
25
26using ::android::hardware::drm::V1_0::helper::SharedLibrary;
27
28class DrmHalVTSVendorModule;
29
30namespace drm_vts {
31class VendorModules {
32   public:
33    /**
34     * Initialize with a file system path where the shared libraries
35     * are to be found.
36     */
37    explicit VendorModules(const std::string& dir) {
38        scanModules(dir);
39    }
40    ~VendorModules() {}
41
42    /**
43     * Retrieve a DrmHalVTSVendorModule given its full path.  The
44     * getAPIVersion method can be used to determine the versioned
45     * subclass type.
46     */
47    DrmHalVTSVendorModule* getModule(const std::string& path);
48
49    /**
50     * Return the list of paths to available vendor modules.
51     */
52    std::vector<std::string> getPathList() const {return mPathList;}
53
54   private:
55    std::vector<std::string> mPathList;
56    std::map<std::string, std::unique_ptr<SharedLibrary>> mOpenLibraries;
57
58    /**
59     * Scan the list of paths to available vendor modules.
60     */
61    void scanModules(const std::string& dir);
62
63    inline bool endsWith(const std::string& str, const std::string& suffix) const {
64        if (suffix.size() > str.size()) return false;
65        return std::equal(suffix.rbegin(), suffix.rend(), str.rbegin());
66    }
67
68    VendorModules(const VendorModules&) = delete;
69    void operator=(const VendorModules&) = delete;
70};
71};
72
73#endif  // VENDOR_MODULES_H
74