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#include "thread_pool.h"
#include "common.h"
bool ThreadPool::start(size_t threads_count) {
if (!m_stopped)
return false;
m_stopped = false;
for (unsigned i = 0; i < threads_count; ++i)
m_threads.emplace_back(&ThreadPool::thread_func, this, i);
return true;
}
void ThreadPool::stop() {
if (m_stopped)
return;
m_stop = true;
m_cv.notify_all();
for (auto &t : m_threads)
t.join();
m_stopped = true;
};
void ThreadPool::push(ThreadPool::job_t &&j) {
std::unique_lock<std::mutex> lock(m_mutex);
m_jobs.push(j);
lock.unlock();
m_cv.notify_one();
}
void ThreadPool::thread_func(unsigned thread_num) {
if (my_thread_init())
die("Can't init mysql thread");
std::unique_lock<std::mutex> lock(m_mutex);
while(true) {
if (m_stop)
goto exit;
while (!m_jobs.empty()) {
if (m_stop)
goto exit;
job_t j = std::move(m_jobs.front());
m_jobs.pop();
lock.unlock();
j(thread_num);
lock.lock();
}
m_cv.wait(lock, [&] { return m_stop || !m_jobs.empty(); });
}
exit:
my_thread_end();
}
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