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| IPC_DONE(3) | libdill Library Functions | IPC_DONE(3) |
NAME
ipc_done - half-closes a IPC connectionSYNOPSIS
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#include <libdill.h> int ipc_done( int s, int64_t deadline);
DESCRIPTION
IPC protocol is a bytestream protocol for transporting data among processes on the same machine. It is an equivalent to POSIX AF_LOCAL sockets.This function closes the outbound half of ICP connection. This will cause the peer to get EPIPE error after it has received all the data.
s: The IPC connection handle.
deadline: A point in time when the operation should time out, in milliseconds. Use the now function to get your current point in time. 0 means immediate timeout, i.e., perform the operation if possible or return without blocking if not. -1 means no deadline, i.e., the call will block forever if the operation cannot be performed.
This function is not available if libdill is compiled with --disable-sockets option.
RETURN VALUE
In case of success the function returns 0. In case of error it returns -1 and sets errno to one of the values below.ERRORS
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- EBADF: Invalid handle.
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- ECANCELED: Current coroutine was canceled.
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- ENOTSUP: The handle does not support this operation.
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- EPIPE: The connection was already half-closed.
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- ETIMEDOUT: Deadline was reached.
EXAMPLE
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int ls = ipc_listen("/tmp/test.ipc", 10); int s = ipc_accept(ls, -1); bsend(s, "ABC", 3, -1); char buf[3]; brecv(s, buf, sizeof(buf), -1); ipc_close(s); ipc_close(ls);
SEE ALSO
brecv(3) brecvl(3) bsend(3) bsendl(3) ipc_accept(3) ipc_accept_mem(3) ipc_close(3) ipc_connect(3) ipc_connect_mem(3) ipc_fromfd(3) ipc_fromfd_mem(3) ipc_listen(3) ipc_listen_mem(3) ipc_listener_fromfd(3) ipc_listener_fromfd_mem(3) ipc_pair(3) ipc_pair_mem(3) now(3)| libdill |
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