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Merge pull request #1106 from reillyeon:run_many

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PiperOrigin-RevId: 520171344
This commit is contained in:
Victor Costan 2023-03-28 16:49:26 -07:00
commit 80d858fb2a
1 changed files with 16 additions and 11 deletions
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27
util/env_test.cc
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@ -96,40 +96,45 @@ TEST_F(EnvTest, RunMany) {
struct RunState {
port::Mutex mu;
port::CondVar cvar{&mu};
int last_id = 0;
int run_count = 0;
};
struct Callback {
RunState* state_; // Pointer to shared state.
const int id_; // Order# for the execution of this callback.
RunState* const state_; // Pointer to shared state.
bool run = false;
Callback(RunState* s, int id) : state_(s), id_(id) {}
Callback(RunState* s) : state_(s) {}
static void Run(void* arg) {
Callback* callback = reinterpret_cast<Callback*>(arg);
RunState* state = callback->state_;
MutexLock l(&state->mu);
ASSERT_EQ(state->last_id, callback->id_ - 1);
state->last_id = callback->id_;
state->run_count++;
callback->run = true;
state->cvar.Signal();
}
};
RunState state;
Callback callback1(&state, 1);
Callback callback2(&state, 2);
Callback callback3(&state, 3);
Callback callback4(&state, 4);
Callback callback1(&state);
Callback callback2(&state);
Callback callback3(&state);
Callback callback4(&state);
env_->Schedule(&Callback::Run, &callback1);
env_->Schedule(&Callback::Run, &callback2);
env_->Schedule(&Callback::Run, &callback3);
env_->Schedule(&Callback::Run, &callback4);
MutexLock l(&state.mu);
while (state.last_id != 4) {
while (state.run_count != 4) {
state.cvar.Wait();
}
ASSERT_TRUE(callback1.run);
ASSERT_TRUE(callback2.run);
ASSERT_TRUE(callback3.run);
ASSERT_TRUE(callback4.run);
}
struct State {