I have a great problem: standard socket blocking recv functions in c return 0 only if the connection is closed by the remote side. I've noticed that often the fpga makes my recv function returns with 0 value even if non one forces the disconnection. Does someone could exlpain it...
The recv() function is used to receive data through a socket.There are two versions of the API, as shown above. The base IBM® i API uses BSD 4.3 structures and syntax. The other uses syntax and structures compatible with the UNIX 98 programming interface specifications. You can select ...
Return the value of the given socket option (see the Unix man page getsockopt(2)). The needed symbolic constants (SO_* etc.) are defined in this module. If buflen is absent, an integer option is assumed and its integer value is returned by the function. If buflen is present, it spe...
A C program started by the xinetd to communicate with Java clients, pops up the error message "Resource temporarily unavailable" at the first call of the recv() function. This occurs without sending anything from the Java client at that time, when only an instance of the java.net.Socket-Cl...
"socket_recv_message")at ../src/basic/log.c:967#5 0x00007f2a6853a6b5 in socket_recv_message (fd=3, buf=0x7f2a67efc1f8, buf_size=0, ret_mcast_group=0x7fff912dd520, peek=false) at ../src/libsystemd/sd-netlink/netlink-socket.c:198#6 0x00007f2a6853b44f in socket_read_...
SOCKET_ADDRESS_LIST structure (Windows) ChooseFont function (Windows) Types element (Windows) MDM_Policy_Config01_Settings02 class (Windows) Graph Element (Child of NotesMenu) Submenu1Button Element ITransformProperties::Clone IPropertyStorage::RemoteDeleteMultiple method (Windows) WordMult function (Win...
"Output" socket interfaces, when a timeout (SO_RCVTIMEO) has been set on the socket using setsockopt(2): connect(2), send(2), sendto(2), and sendmsg(2). 查看人员7号信号了解更多细节。 一个简单的用法是使用信号来避免recvfrom无限期阻塞。 APUE的一个例子: #include "apue.h" #include ...
Requests that the function block until the full amount of data requested can be returned (stream sockets only). The function may return a smaller amount of data if the connection is terminated, an error is pending, or SO_RCVTIMEO is set and the timer expired for the socket. ...
WSARecv(), WSARecvFrom(), WSASend() or WSASendTo() function. For a given socket, I/O completion routines will not be nested. This permits time-sensitive data transmissions to occur entirely within a preemptive context. So, it seems that you need to test WSARecv's return value. If it...
The following C code snippet utilizespollto implement a time-out feature for yourrecvfunction. struct pollfd fd; int ret; fd.fd = mySocket; // your socket handler fd.events = POLLIN; ret = poll(&fd, 1, 1000); // 1 second for timeout switch (ret) { case -1: // Error break;...