/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * Copyright (C) 2019, Google Inc. * * timer.cpp - Timer test */ #include #include #include #include #include "test.h" #include "thread.h" using namespace std; using namespace libcamera; class ManagedTimer : public Timer { public: ManagedTimer() : Timer(), count_(0) { timeout.connect(this, &ManagedTimer::timeoutHandler); } void start(int msec) { count_ = 0; start_ = std::chrono::steady_clock::now(); expiration_ = std::chrono::steady_clock::time_point(); Timer::start(msec); } void start(std::chrono::steady_clock::time_point deadline) { count_ = 0; start_ = std::chrono::steady_clock::now(); expiration_ = std::chrono::steady_clock::time_point(); Timer::start(deadline); } int jitter() { std::chrono::steady_clock::duration duration = expiration_ - deadline(); return abs(std::chrono::duration_cast(duration).count()); } bool hasFailed() { return isRunning() || count_ != 1 || jitter() > 50; } private: void timeoutHandler(Timer *timer) { expiration_ = std::chrono::steady_clock::now(); count_++; } unsigned int count_; std::chrono::steady_clock::time_point start_; std::chrono::steady_clock::time_point expiration_; }; class TimerTest : public Test { protected: int init() { return 0; } int run() { EventDispatcher *dispatcher = Thread::current()->eventDispatcher(); ManagedTimer timer; ManagedTimer timer2; /* Timer expiration. */ timer.start(1000); if (!timer.isRunning()) { cout << "Timer expiration test failed" << endl; return TestFail; } dispatcher->processEvents(); if (timer.hasFailed()) { cout << "Timer expiration test failed" << endl; return TestFail; } /* * 32 bit wrap test * Nanosecond resolution in a 32 bit value wraps at 4.294967 * seconds (0xFFFFFFFF / 1000000) */ timer.start(4295); dispatcher->processEvents(); if (timer.hasFailed()) { cout << "Timer expiration test failed" << endl; return TestFail; } /* Timer restart. */ timer.start(500); if (!timer.isRunning()) { cout << "Timer restart test failed" << endl; return TestFail; } dispatcher->processEvents(); if (timer.hasFailed()) { cout << "Timer restart test failed" << endl; return TestFail; } /* Timer restart before expiration. */ timer.start(50); timer.start(100); timer.start(150); dispatcher->processEvents(); if (timer.hasFailed()) { cout << "Timer restart before expiration test failed" << endl; return TestFail; } /* Timer with absolute deadline. */ timer.start(std::chrono::steady_clock::now() + std::chrono::milliseconds(200)); dispatcher->processEvents(); if (timer.hasFailed()) { cout << "Absolute deadline test failed" << endl; return TestFail; } /* Two timers. */ timer.start(1000); timer2.start(300); dispatcher->processEvents(); if (!timer.isRunning()) { cout << "Two timers test failed" << endl; return TestFail; } if (timer2.jitter() > 50) { cout << "Two timers test failed" << endl; return TestFail; } dispatcher->processEvents(); if (timer.jitter() > 50) { cout << "Two timers test failed" << endl; return TestFail; } /* Restart timer before expiration. */ timer.start(1000); timer2.start(300); dispatcher->processEvents(); if (timer2.jitter() > 50) { cout << "Two timers test failed" << endl; return TestFail; } timer.start(1000); dispatcher->processEvents(); if (timer.jitter() > 50) { cout << "Two timers test failed" << endl; return TestFail; } /* * Test that dynamically allocated timers are stopped when * deleted. This will result in a crash on failure. */ ManagedTimer *dyntimer = new ManagedTimer(); dyntimer->start(100); delete dyntimer; timer.start(200); dispatcher->processEvents(); return TestPass; } void cleanup() { } }; TEST_REGISTER(TimerTest) 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172