MPI_Send可以以两种不同的方式实现: 将消息复制到MPI设置的缓冲区并返回; 直到对应的MPI_Recv出现前都阻塞 1.MPI_Send调用返回时表明数据已被发出或被MPI系统复制,随后对发送缓冲区的修改不会改变所发送的数据; 2.MPI_Recv返回时表明数据接收已经完成;
如果recv在copy时出错,那么它返回SOCKET_ERROR;如果recv函数在等待协议接收数据时网络中断了,那么它返回0。 注意:在Unix系统下,如果recv函数在等待协议接收数据时网络断开了,那么调用recv的进程会接收到一个SIGPIPE信号,进程对该信号的默认处理是进程终止。
Thesendandrecvfunctions are used by IrDA applications to transfer data. The recv function blocks until data is available, and the send function normally will not block. The following sample demonstrates using thesendandrecvfunctions for an IrDA application. int BytesRead, BytesSent; char Buffer[409...
The recv function blocks until data is available, and the send function normally will not block. The following sample demonstrates using the send and recv functions for an IrDA application. syntax 复制 int BytesRead, BytesSent; char Buffer[4096]; // recv() example if ((BytesRead = recv(...
The following sample demonstrates using the send and recv functions for an IrDA application.syntax Copy int BytesRead, BytesSent; char Buffer[4096]; // recv() example if ((BytesRead = recv(Sock, Buffer, sizeof(Buffer), 0)) == SOCKET_ERROR) { // call WSAGetLastError } if (BytesRead...
Frida docs give the following example for sending and receiving data using Python from __future__ import print_function import frida import sys session = frida.attach("hello") script = session.create_script(""" recv('poke', function onMessage(pokeMessage) { send('pokeBack'); }); """)...
This PR fixes the method type definitions for UNIXSocket#{send_io,recv_io}. send_io https://docs.ruby-lang.org/en/3.3/UNIXSocket.html#method-i-send_io send_io actually receives an IO, but the type ...
recv() 上的回覆碼 0 表示伺服器已關閉連線。 用戶端呼叫 close() 以關閉 Socket。範例: 使用 accept_and_recv () 和 send_file () API 來傳送檔案的內容 此範例可讓伺服器使用 send_file() 和accept_and_recv() API 來與用戶端通訊。 範例: 用戶端要求檔案 此範例可讓用戶端向伺服...
send back the response at this moment. Let's say I have another thread want to send some data to the same remote client using the same socket descriptor, and call the send function. Since the CC3000 has not response the previous recv or select call yet, it seems like the send function...
UDT源码剖析(十一)之SendQueue And RecvQueue SendQueue与RecvQueue在代码中与UDP SOCKET相关。在用户将想要发送的数据提交给Buffer之后,由Buffer将数据打包,根据拥塞控制提供的时间计算,在合适的时间提交给SendQueue进行发送。在接收到数据包之后,通过事件驱动的模式通知用户从RecvQueue中拿去数据包。