Terminates a record (when this notion is supported, as for Will affect all threads in the calling process and as wellĪs other processes that hold file descriptors referring to Setting on the open file description (see open(2)), which MSG_DONTWAIT is a per-call option, whereas O_NONBLOCK is a Similar behavior to setting the O_NONBLOCK flag (via theįcntl(2) F_SETFL operation), but differs in that Only for protocol families that route packet socketsĮnables nonblocking operation if the operation wouldīlock, EAGAIN or EWOULDBLOCK is returned.
See arp(7) for details.ĭon't use a gateway to send out the packet, send to hosts SOCK_DGRAM and SOCK_RAW sockets and currently implemented Layer doesn't get this it will regularly reprobe the Got a successful reply from the other side. Tell the link layer that forward progress happened: you The flags argument is the bitwise OR of zero or more of the The select(2) call mayīe used to determine when it is possible to send more data. In nonblocking mode it would fail with theĮrror EAGAIN or EWOULDBLOCK in this case. Send() normally blocks, unless the socket has been placed in When the message does not fit into the send buffer of the socket, Locally detected errors are indicated by a return value of -1. No indication of failure to deliver is implicit in a send(). Underlying protocol, the error EMSGSIZE is returned, and the If the message is too long to pass atomically through the The sendmsg() call alsoĪllows sending ancillary data (also known as control For sendmsg(), the message is pointed to by theĮlements of the array msg.msg_iov. With msg.msg_namelen specifying its size.įor send() and sendto(), the message is found in buf and has Sendmsg(), the address of the target is given by msg.msg_name, Is given by dest_addr with addrlen specifying its size. NULL and 0), and the error ENOTCONN is returned when the socket
Ignored (and the error EISCONN may be returned when they are not SOCK_SEQPACKET) socket, the arguments dest_addr and addrlen are If sendto() is used on a connection-mode ( SOCK_STREAM, The argument sockfd is the file descriptor of the sending socket. Sendto(sockfd, buf, len, flags, NULL, 0) With a zero flags argument, send() is equivalent to Only difference between send() and write(2) is the presence ofįlags. The send() call may be used only when the socket is in aĬonnected state (so that the intended recipient is known). The system calls send(), sendto(), and sendmsg() are used to SYNOPSIS top #include ssize_t send(int sockfd, const void * buf, size_t len, int flags ) ssize_t sendto(int sockfd, const void * buf, size_t len, int flags, const struct sockaddr * dest_addr, socklen_t addrlen ) ssize_t sendmsg(int sockfd, const struct msghdr * msg, int flags ) DESCRIPTION top Send, sendto, sendmsg - send a message on a socket SEND(2) Linux Programmer's Manual SEND(2) NAME top
0 kommentar(er)
