| 1 | #include "mycpp/gc_iolib.h"
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| 2 |
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| 3 | #include <unistd.h>
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| 4 |
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| 5 | #include "mycpp/gc_alloc.h" // gHeap
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| 6 | #include "vendor/greatest.h"
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| 7 |
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| 8 | TEST signal_test() {
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| 9 | iolib::SignalSafe* signal_safe = iolib::InitSignalSafe();
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| 10 |
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| 11 | {
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| 12 | List<int>* q = signal_safe->TakePendingSignals();
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| 13 | ASSERT(q != nullptr);
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| 14 | ASSERT_EQ(0, len(q));
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| 15 | signal_safe->ReuseEmptyList(q);
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| 16 | }
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| 17 |
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| 18 | pid_t mypid = getpid();
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| 19 |
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| 20 | iolib::RegisterSignalInterest(SIGUSR1);
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| 21 | iolib::RegisterSignalInterest(SIGUSR2);
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| 22 |
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| 23 | kill(mypid, SIGUSR1);
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| 24 | ASSERT_EQ(SIGUSR1, signal_safe->LastSignal());
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| 25 |
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| 26 | kill(mypid, SIGUSR2);
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| 27 | ASSERT_EQ(SIGUSR2, signal_safe->LastSignal());
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| 28 |
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| 29 | {
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| 30 | List<int>* q = signal_safe->TakePendingSignals();
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| 31 | ASSERT(q != nullptr);
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| 32 | ASSERT_EQ(2, len(q));
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| 33 | ASSERT_EQ(SIGUSR1, q->at(0));
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| 34 | ASSERT_EQ(SIGUSR2, q->at(1));
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| 35 |
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| 36 | q->clear();
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| 37 | signal_safe->ReuseEmptyList(q);
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| 38 | }
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| 39 |
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| 40 | iolib::sigaction(SIGUSR1, SIG_IGN);
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| 41 | kill(mypid, SIGUSR1);
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| 42 | {
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| 43 | List<int>* q = signal_safe->TakePendingSignals();
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| 44 | ASSERT(q != nullptr);
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| 45 | ASSERT(len(q) == 0);
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| 46 | signal_safe->ReuseEmptyList(q);
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| 47 | }
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| 48 | iolib::sigaction(SIGUSR2, SIG_IGN);
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| 49 |
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| 50 | iolib::RegisterSignalInterest(SIGWINCH);
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| 51 |
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| 52 | kill(mypid, SIGWINCH);
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| 53 | ASSERT_EQ(iolib::UNTRAPPED_SIGWINCH, signal_safe->LastSignal());
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| 54 |
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| 55 | signal_safe->SetSigWinchCode(SIGWINCH);
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| 56 |
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| 57 | kill(mypid, SIGWINCH);
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| 58 | ASSERT_EQ(SIGWINCH, signal_safe->LastSignal());
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| 59 | {
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| 60 | List<int>* q = signal_safe->TakePendingSignals();
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| 61 | ASSERT(q != nullptr);
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| 62 | ASSERT_EQ(2, len(q));
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| 63 | ASSERT_EQ(SIGWINCH, q->at(0));
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| 64 | ASSERT_EQ(SIGWINCH, q->at(1));
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| 65 | }
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| 66 |
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| 67 | PASS();
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| 68 | }
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| 69 |
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| 70 | TEST signal_safe_test() {
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| 71 | iolib::SignalSafe signal_safe;
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| 72 |
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| 73 | List<int>* received = signal_safe.TakePendingSignals();
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| 74 |
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| 75 | // We got now signals
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| 76 | ASSERT_EQ_FMT(0, len(received), "%d");
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| 77 |
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| 78 | // The existing queue is of length 0
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| 79 | ASSERT_EQ_FMT(0, len(signal_safe.pending_signals_), "%d");
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| 80 |
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| 81 | // Capacity is a ROUND NUMBER from the allocator's POV
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| 82 | // There's no convenient way to test the obj_len we pass to gHeap.Allocate,
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| 83 | // but it should be (1022 + 2) * 4.
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| 84 | ASSERT_EQ_FMT(1022, signal_safe.pending_signals_->capacity_, "%d");
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| 85 |
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| 86 | // Register too many signals
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| 87 | for (int i = 0; i < iolib::kMaxPendingSignals + 10; ++i) {
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| 88 | signal_safe.UpdateFromSignalHandler(SIGINT);
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| 89 | }
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| 90 |
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| 91 | PASS();
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| 92 | }
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| 93 |
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| 94 | GREATEST_MAIN_DEFS();
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| 95 |
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| 96 | int main(int argc, char** argv) {
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| 97 | gHeap.Init();
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| 98 |
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| 99 | GREATEST_MAIN_BEGIN();
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| 100 |
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| 101 | RUN_TEST(signal_test);
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| 102 | RUN_TEST(signal_safe_test);
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| 103 |
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| 104 | gHeap.CleanProcessExit();
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| 105 |
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| 106 | GREATEST_MAIN_END(); /* display results */
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| 107 |
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| 108 | return 0;
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| 109 | }
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