Exemplos de ANCIL_FD_BUFFER em C++ (Cpp)

Exemplo n.º 1

Arquivo: forkwrapper.C Projeto: Cuchulain/cinelerra

int ForkWrapper::get_fd()
{
	ANCIL_FD_BUFFER(1) buffer;
    struct msghdr msghdr;
    char nothing;
    struct iovec nothing_ptr;
    struct cmsghdr *cmsg;

    nothing_ptr.iov_base = &nothing;
    nothing_ptr.iov_len = 1;
    msghdr.msg_name = NULL;
    msghdr.msg_namelen = 0;
    msghdr.msg_iov = &nothing_ptr;
    msghdr.msg_iovlen = 1;
    msghdr.msg_flags = 0;
    msghdr.msg_control = &buffer;
    msghdr.msg_controllen = sizeof(struct cmsghdr) + sizeof(int);
    cmsg = CMSG_FIRSTHDR(&msghdr);
    cmsg->cmsg_len = msghdr.msg_controllen;
    cmsg->cmsg_level = SOL_SOCKET;
    cmsg->cmsg_type = SCM_RIGHTS;
    int *ifd = (int *)CMSG_DATA(cmsg);
    *ifd = -1;
    
    if(recvmsg(parent_fd, &msghdr, 0) < 0) return(-1);
    return *ifd;
}

Exemplo n.º 2

Arquivo: fd_send.c Projeto: ExaServe/procket

int
ancil_send_fd(int sock, int fd)
{
    ANCIL_FD_BUFFER(1) buffer;

    return(ancil_send_fds_with_buffer(sock, &fd, 1, &buffer));
}

Exemplo n.º 3

Arquivo: forkwrapper.C Projeto: Cuchulain/cinelerra

void ForkWrapper::send_fd(int fd)
{
	ANCIL_FD_BUFFER(1) buffer;
    struct msghdr msghdr;
    char nothing = '!';
    struct iovec nothing_ptr;
    struct cmsghdr *cmsg;

    nothing_ptr.iov_base = &nothing;
    nothing_ptr.iov_len = 1;
    msghdr.msg_name = NULL;
    msghdr.msg_namelen = 0;
    msghdr.msg_iov = &nothing_ptr;
    msghdr.msg_iovlen = 1;
    msghdr.msg_flags = 0;
    msghdr.msg_control = &buffer;
    msghdr.msg_controllen = sizeof(struct cmsghdr) + sizeof(int);
    cmsg = CMSG_FIRSTHDR(&msghdr);
    cmsg->cmsg_len = msghdr.msg_controllen;
    cmsg->cmsg_level = SOL_SOCKET;
    cmsg->cmsg_type = SCM_RIGHTS;
    int *ifd = (int *)CMSG_DATA(cmsg);
    *ifd = fd;
    sendmsg(child_fd, &msghdr, 0);
}

Exemplo n.º 4

Arquivo: fd_send.c Projeto: ExaServe/procket

int
ancil_send_fds(int sock, const int *fds, unsigned n_fds)
{
    ANCIL_FD_BUFFER(ANCIL_MAX_N_FDS) buffer;

    assert(n_fds <= ANCIL_MAX_N_FDS);
    return(ancil_send_fds_with_buffer(sock, fds, n_fds, &buffer));
}

Exemplo n.º 5

Arquivo: android.c Projeto: corny/fastd

/** shortcut for receiving only one \e fd from \e sock */
static int ancil_recv_fd(int sock, int *fd) {
	ANCIL_FD_BUFFER(1) buffer;

	return ancil_recv_fds_with_buffer(sock, fd, 1, &buffer) == 1 ? 0 : -1;
}