boost :: interprocess有'upgrade_to_unique_lock'吗？
我正在寻找在编写者偏见的读写器模型中有效地共享两个（或更多）进程之间的数据块的最佳方法。
我目前的测试是
boost::interprocess
managed_shared_memory
sharable_lock
upgradable_lock
upgrade_to_unique_lock
boost::interprocess
while (1) {
// Get upgrade lock on the mutex
upgradable_lock <MutexType> lock(myMutex);
// Need 'upgrade_to_unique_lock' here so shared readers will block until
// write operation is finished.
// Write values here
}
while (1)
{
// Get shared access
sharable_lock <MutexType> lock(myMutex);
// Read p1's data here -- occasionally invalid!
}
没有找到相关结果
已邀请:
2 个回复
良阑纠苫
亥套惟间连
。如果有一个模拟到，我不知道它在哪里。但是功能可以改写为：while (1) { // Get upgrade lock on the mutex myMutex.lock_upgradable(); // Get exclusive access and block everyone else myMutex.unlock_upgradable_and_lock(); // Write values here // Unlock the mutex (and stop blocking readers) myMutex.unlock(); }