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// Copyright Vespa.ai. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
#include <vespa/vespalib/testkit/test_kit.h>
#include <vespa/vespalib/util/thread.h>
#include <iostream>
using namespace vespalib;
VESPA_THREAD_STACK_TAG(test_agent_thread);
struct Agent : public Runnable {
bool was_run;
Agent() : was_run(false) {}
void run() override {
fprintf(stderr, "agent run in thread %zu\n", thread::as_zu(std::this_thread::get_id()));
was_run = true;
}
};
void my_fun(bool *was_run) {
*was_run = true;
}
Runnable::init_fun_t wrap(Runnable::init_fun_t init, bool *init_called) {
return [=](Runnable &target)
{
fprintf(stderr, "lambda run in thread %zu\n", thread::as_zu(std::this_thread::get_id()));
*init_called = true;
return init(target);
};
}
TEST("main thread") {
auto my_id = std::this_thread::get_id();
std::cerr << "main thread(with <<): " << my_id << "\n";
fprintf(stderr, "main thread(with printf): %zu\n", thread::as_zu(my_id));
}
TEST("run vespalib::Runnable with init function") {
Agent agent;
bool init_called = false;
auto thread = thread::start(agent, wrap(test_agent_thread, &init_called));
thread.join();
EXPECT_TRUE(init_called);
EXPECT_TRUE(agent.was_run);
}
TEST("use thread pool to run multiple things") {
Agent agent;
bool init_called = false;
bool was_run = false;
ThreadPool pool;
EXPECT_TRUE(pool.empty());
EXPECT_EQUAL(pool.size(), 0u);
pool.start(my_fun, &was_run);
EXPECT_TRUE(!pool.empty());
EXPECT_EQUAL(pool.size(), 1u);
pool.start(agent, wrap(test_agent_thread, &init_called));
EXPECT_TRUE(!pool.empty());
EXPECT_EQUAL(pool.size(), 2u);
pool.join();
EXPECT_TRUE(pool.empty());
EXPECT_EQUAL(pool.size(), 0u);
EXPECT_TRUE(init_called);
EXPECT_TRUE(agent.was_run);
EXPECT_TRUE(was_run);
}
TEST_MAIN() { TEST_RUN_ALL(); }
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