命令vim /etc/samba/smb.conf 格式 aio read size = size值 例如: aio read size = 16384
aio_read64子常式類似於aio_read子常式 execpt ,它採用aiocb64參照參數。 這可讓aio_read64子常式指定超過OFF_MAX(2 十億位元組減 1) 的偏移。 在啟用大型檔案的程式設計環境中,aio_read重新定義為aio_read64。 如果您使用aio_read或aio_read64子常式與從呼叫shm_open子常式取得的檔案描述子搭配,則它會因...
new ReadHandler(socketChannel));}@Overridepublic void failed(Throwable exc, AsynchronousServerSocketChannel attachment) {exc.printStackTrace();}}4 构建网路服务端读数据处理器：ReadHandler.javapackage hxb.server;import java.io.IOException;import java.nio.ByteBuffer;import java.nio.channels.AsynchronousSocketCh...
Update Read the Docs configuration Jan 8, 2020 aiogithub asyncio- and aiohttp-based Python 3.7 and newer GitHub API client. Note: This library is a work in progress. So far, select read operations have been implemented. A simple example ...
Optional. If data set size exceeds batch size then operation will be split into multiple requests so that progress can be tracked. Batch size should be between 1 and 2000. The default when unspecified is 2000. max_batches int Optional. Defines maximum number of batches th...
char buffer[BUF_SIZE];/* buffer */int fd1=/* ... 打开一个文件并获得fd */int fd2=/* ... 打开另一个文件并获得fd */read(fd1,&buffer,BUF_SIZE);/* 读文件数据到buffer *//* processing buffer ... */write(fd2,&buffer,ret_in);/* 将buffer数据写入文件 *//* 如果需要,可以调用fsync...
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NIO可以理解为非阻塞IO,传统的IO的read和write只能阻塞执行,线程在读写IO期间不能干其他事情,比如调用socket.read()时,如果服务器一直没有数据传输过来,线程就一直阻塞,而NIO中可以配置socket为非阻塞模式。 NIO相关类都被放在java.nio包及子包下,并且对原java.io包中的很多类进行改写.。 NIO有三大核心部分:...
rd.aio_buf = malloc(BUFFER_SIZE + 1); //填充rd结构体 rd.aio_fildes = fd; rd.aio_nbytes = BUFFER_SIZE; rd.aio_offset = 0; //进行异步读操作 ret = aio_read(&rd); if(ret < 0) { perror("aio_read"); exit(1); } couter = 0; ...
(1)异步读aio_read aio_read函数请求对一个文件进行读操作,所请求文件对应的文件描述符可以是文件,套接字,甚至管道其原型如下 int aio_read(struct aiocb *paiocb); 1 该函数请求对文件进行异步读操作,若请求失败返回-1,成功则返回0,并将该请求进行排队,然后就开始对文件的异步读操作 ...