filemap_fdatasync |->writepage=>ext2_writepage从脏页转换到脏的缓冲区数据块的转换 |->block_write_full_page |->__block_prepare_write完成文件内块号到设备上的块号的映射 |->__block_commit_write将块缓冲区标记为脏,加入相应链表inode->i_dirty_buffers 调用file->f_op->fsync,对于ext2 文件系统也...
err = filemap_fdatawait(bdev->bd_inode->i_mapping); if (!ret) ret = err; } return ret; } 函数filemap_fdatawait遍历所给地址空间回写页的链表并等待在他们上面,其中参数mapping表示等待的地址空间结构。函数filemap_fdatawait分析如下(在/mm/filemap.c中): int filemap_fdatawait(struct address...
three1:one2:two 如你所见,Range方法接收一个类型为func(key,value interface {})bool的函数参数。如果函数返回了false,则停止迭代。有趣的事实是,即使我们在恒定时间后返回false,最坏情况下的时间复杂度仍为O(n)。 我们应该在什么时候使用sync.Map而不是在普通的map上使用sync.Mutex? 当我们对map有频繁的读取...
Update Swisscom profile setup. Add contact mapping configuration option to map anniversary dates for contacts. Supports ANNIVERSARY, X-ANNIVERSARY and X-MS-ANNIVERSARY properties and writes ANNIVERSARY. Add option to map task reminders as absolute DATE-TIME value, needed for IOS, feature request 105...
Redisson - Valkey and Redis Java client. Real-Time Data Platform. Sync/Async/RxJava/Reactive API. Over 50 Valkey and Redis based Java objects and services: Set, Multimap, SortedSet, Map, List, Queue, Deque, Semaphore, Lock, AtomicLong, Map Reduce, Bloom
Resolved issue with SuccessListeners where events for openDocument, openMap, openList, openStream were not called on the user thread. Resolved issue where remote update events may not be received after the same object got opened multiple times concurrently.Sync...
Map out complex flows Fun & games About Comments313 Sync content from Google Sheets directly into your Figma file. This is not an official plugin created by Google • It is simply created with ️ by David Williames If you want to support the continued development of this plugin, why...
通常称为update的系统守护进程会周期性地(一般每隔30秒)调用sync函数。这就保证了定期冲洗内核的块缓冲区。命令sync(1)也调用sync函数。 fsync函数只对由文件描述符filedes指定的单一文件起作用,并且等待写磁盘操作结束,然后返回。fsync可用于数据库这样的应用程序,这种应用程序需要确保将修改过的块立即写到磁盘上。
IDs) == 0 { return &ListResponse{ Jobs: jobs, } } var requestedIDs = make(map[string]bool) for i := range request.IDs { requestedIDs[request.IDs[i]] = true } var filtered = make([]*core.Job, 0) for i := range jobs { if _, has := requestedIDs[jobs[i].ID]; !has {...
任务调度:1、新增任务,将任务保存至 id-》task map里,检查 正在执行任务 列表,如果大于等于 10 个,则放入 待执行队列 里;否则任务 id 记录到 正在执行列表、并启动任务。 2、任务执行完成后,从 待执行队列 里取出一个任务,放入 正在执行列表 里,然后执行任务。