libdill: Structured Concurrency for C


ipc_accept_mem - accepts an incoming IPC connection


#include <libdill.h>

int ipc_accept_mem(int s, void *mem, int64_t deadline);


IPC protocol is a bytestream protocol (i.e. data can be sent via bsend() and received via brecv()) for transporting data among processes on the same machine. It is an equivalent to POSIX AF_LOCAL sockets.

This function accepts an incoming IPC connection from the listening socket s, in user-supplied memory. The memory is passed in mem argument. It must be at least IPC_SIZE bytes long and can be deallocated only after the socket is closed. Unless you are hyper-optimizing use ipc_accept() instead.

deadline is a point in time when the operation should time out. 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.

The socket can be cleanly shut down using ipc_close() function.


Newly created socket handle. On error, it returns -1 and sets errno to one of the values below.



int listener = ipc_listen("/tmp/test.ipc", 10);
char mem[IPC_SIZE];
int s = ipc_accept_mem(listener, mem, -1);