iovec
ACE_QoS::provider_specific (void) const
{
#if defined (ACE_HAS_WINSOCK2) && (ACE_HAS_WINSOCK2 != 0)
return (iovec&) this->ProviderSpecific;
#else
ACE_NOTSUP_RETURN (iovec ());
#endif /* ACE_HAS_WINSOCK2 */
}
std::size_t SocketUtils::sock_fd_write(int sock, void *buf, std::size_t buflen, int fd) {
//Declaration
auto msg = msghdr();
auto iov = iovec();
union {
cmsghdr cmsgheader;
char control[CMSG_SPACE(sizeof(int))];
} cmsgu;
struct cmsghdr *cmsg;
//Definition
iov.iov_base = buf;
iov.iov_len = buflen;
msg.msg_name = nullptr;
msg.msg_namelen = 0;
msg.msg_iov = &iov;
msg.msg_iovlen = 1;
//Passing file descriptor
if (fd != -1) {
msg.msg_control = cmsgu.control;
msg.msg_controllen = sizeof(cmsgu.control);
cmsg = CMSG_FIRSTHDR(&msg);
cmsg->cmsg_len = CMSG_LEN(sizeof(int));
cmsg->cmsg_level = SOL_SOCKET;
cmsg->cmsg_type = SCM_RIGHTS;
printf("passing fd %d\n", fd);
*((int *) CMSG_DATA(cmsg)) = fd;
}
//Not passing file descriptor
else {
msg.msg_control = nullptr;
msg.msg_controllen = 0;
printf("not passing fd\n");
}
//Sending data
auto size = sendmsg(sock, &msg, 0);
if (size < 0) throw syscall_error("sock_fd_write: sendmsg");
return static_cast<size_t>(size);
}
std::size_t SocketUtils::sock_fd_read(int sock, void *buf, std::size_t bufsize, int *fd) {
//File descriptor received
if (fd) {
//Declaration
auto msg = msghdr();
auto iov = iovec();
union {
cmsghdr cmsgheader;
char control[CMSG_SPACE(sizeof(int))];
} cmsgu;
struct cmsghdr *cmsg;
//Definition
iov.iov_base = buf;
iov.iov_len = bufsize;
msg.msg_name = nullptr;
msg.msg_namelen = 0;
msg.msg_iov = &iov;
msg.msg_iovlen = 1;
msg.msg_control = cmsgu.control;
msg.msg_controllen = sizeof(cmsgu.control);
//receiving data
auto size = recvmsg(sock, &msg, 0);
if (size < 0) throw syscall_error("sock_fd_read: recvmsg");
//Getting file descriptor
cmsg = CMSG_FIRSTHDR(&msg);
if (cmsg && cmsg->cmsg_len == CMSG_LEN(sizeof(int))) {
if (cmsg->cmsg_level != SOL_SOCKET) throw syscall_error("Invalid cmsg level");
if (cmsg->cmsg_type != SCM_RIGHTS) throw syscall_error("Invalid cmsg rights");
*fd = *((int *) CMSG_DATA(cmsg));
printf("recieved fd %d\n", *fd);
} else
*fd = -1;
return static_cast<size_t>(size);
}
//File descriptor is not received
auto size = read(sock, buf, bufsize);
if (size < 0) throw syscall_error("sock_fd_read: read");
return static_cast<size_t>(size);
}
iovec YGIRequest::REMOTE_ADDR() {
return iovec();
}
iovec YGIRequest::REMOTE_HOST() {
return iovec();
}
iovec YGIRequest::PATH_TRANSLATED() {
return iovec();
}
iovec YGIRequest::PATH_INFO() {
return iovec();
}
iovec YGIRequest::DOCUMENT_ROOT() {
return iovec();
}
iovec YGIRequest::SERVER_NAME() {
return iovec();
}
iovec YGIRequest::SCRIPT_NAME() {
return iovec();
}
