mirror of
https://github.com/MariaDB/server.git
synced 2025-01-15 19:42:28 +01:00
1c55b845e0
Added support to BACKUP STAGE to maria-backup
This is a port of the code from ES 10.6
See MDEV-5336 for backup stages description.
The following old options are not supported by the new code:
--rsync ; This is because rsync will not work on tables
that are in used.
--no-backup-locks ; This is disabled as mariadb-backup will always
use backup locks for better performance.
50 lines
1 KiB
C++
50 lines
1 KiB
C++
#include "thread_pool.h"
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#include "common.h"
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bool ThreadPool::start(size_t threads_count) {
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if (!m_stopped)
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return false;
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m_stopped = false;
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for (unsigned i = 0; i < threads_count; ++i)
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m_threads.emplace_back(&ThreadPool::thread_func, this, i);
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return true;
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}
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void ThreadPool::stop() {
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if (m_stopped)
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return;
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m_stop = true;
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m_cv.notify_all();
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for (auto &t : m_threads)
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t.join();
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m_stopped = true;
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};
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void ThreadPool::push(ThreadPool::job_t &&j) {
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std::unique_lock<std::mutex> lock(m_mutex);
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m_jobs.push(j);
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lock.unlock();
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m_cv.notify_one();
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}
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void ThreadPool::thread_func(unsigned thread_num) {
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if (my_thread_init())
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die("Can't init mysql thread");
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std::unique_lock<std::mutex> lock(m_mutex);
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while(true) {
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if (m_stop)
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goto exit;
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while (!m_jobs.empty()) {
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if (m_stop)
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goto exit;
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job_t j = std::move(m_jobs.front());
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m_jobs.pop();
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lock.unlock();
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j(thread_num);
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lock.lock();
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}
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m_cv.wait(lock, [&] { return m_stop || !m_jobs.empty(); });
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}
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exit:
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my_thread_end();
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}
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