return true;
}
-static void set_blocking(int fd, bool block)
+bool io_fd_block(int fd, bool block)
{
int flags = fcntl(fd, F_GETFL);
+ if (flags == -1)
+ return false;
+
if (block)
flags &= ~O_NONBLOCK;
else
flags |= O_NONBLOCK;
- fcntl(fd, F_SETFL, flags);
+ return fcntl(fd, F_SETFL, flags) != -1;
}
struct io_conn *io_new_conn_(const tal_t *ctx, int fd,
return tal_free(conn);
/* Keep our I/O async. */
- set_blocking(fd, false);
+ io_fd_block(fd, false);
/* We start with out doing nothing, and in doing our init. */
conn->plan[IO_OUT].status = IO_UNSET;
struct io_plan *io_close_taken_fd(struct io_conn *conn)
{
- set_blocking(conn->fd.fd, true);
+ io_fd_block(conn->fd.fd, true);
cleanup_conn_without_close(conn);
return io_close(conn);
return true;
/* Synchronous please. */
- set_blocking(io_conn_fd(conn), true);
+ io_fd_block(io_conn_fd(conn), true);
again:
switch (plan->io(conn->fd.fd, &plan->arg)) {
abort();
}
- set_blocking(io_conn_fd(conn), false);
+ io_fd_block(io_conn_fd(conn), false);
return ok;
}