32 #if defined ZMQ_USE_DEVPOLL 34 #include <sys/devpoll.h> 36 #include <sys/types.h> 38 #include <sys/ioctl.h> 49 zmq::devpoll_t::devpoll_t (
const zmq::ctx_t &ctx_) :
53 devpoll_fd = open (
"/dev/poll", O_RDWR);
57 zmq::devpoll_t::~devpoll_t ()
63 void zmq::devpoll_t::devpoll_ctl (
fd_t fd_,
short events_)
65 struct pollfd pfd = {fd_, events_, 0};
66 ssize_t rc = write (devpoll_fd, &pfd,
sizeof pfd);
70 zmq::devpoll_t::handle_t zmq::devpoll_t::add_fd (
fd_t fd_,
71 i_poll_events *reactor_)
74 fd_table_t::size_type sz = fd_table.size ();
75 if (sz <= (fd_table_t::size_type) fd_) {
76 fd_table.resize (fd_ + 1);
77 while (sz != (fd_table_t::size_type) (fd_ + 1)) {
78 fd_table [sz].valid =
false;
85 fd_table [fd_].events = 0;
86 fd_table [fd_].reactor = reactor_;
87 fd_table [fd_].valid =
true;
88 fd_table [fd_].accepted =
false;
91 pending_list.push_back (fd_);
99 void zmq::devpoll_t::rm_fd (handle_t handle_)
103 devpoll_ctl (handle_, POLLREMOVE);
104 fd_table [handle_].valid =
false;
110 void zmq::devpoll_t::set_pollin (handle_t handle_)
112 devpoll_ctl (handle_, POLLREMOVE);
113 fd_table [handle_].events |= POLLIN;
114 devpoll_ctl (handle_, fd_table [handle_].events);
117 void zmq::devpoll_t::reset_pollin (handle_t handle_)
119 devpoll_ctl (handle_, POLLREMOVE);
120 fd_table [handle_].events &= ~((short) POLLIN);
121 devpoll_ctl (handle_, fd_table [handle_].events);
124 void zmq::devpoll_t::set_pollout (handle_t handle_)
126 devpoll_ctl (handle_, POLLREMOVE);
127 fd_table [handle_].events |= POLLOUT;
128 devpoll_ctl (handle_, fd_table [handle_].events);
131 void zmq::devpoll_t::reset_pollout (handle_t handle_)
133 devpoll_ctl (handle_, POLLREMOVE);
134 fd_table [handle_].events &= ~((short) POLLOUT);
135 devpoll_ctl (handle_, fd_table [handle_].events);
138 void zmq::devpoll_t::start ()
140 ctx.start_thread (
worker, worker_routine,
this);
148 int zmq::devpoll_t::max_fds ()
153 void zmq::devpoll_t::loop ()
158 struct dvpoll poll_req;
160 for (pending_list_t::size_type i = 0; i < pending_list.size (); i ++)
161 fd_table [pending_list [i]].accepted =
true;
162 pending_list.clear ();
165 int timeout = (
int) execute_timers ();
169 poll_req.dp_fds = &ev_buf [0];
170 #if defined ZMQ_HAVE_SOLARIS 171 poll_req.dp_nfds = std::min ((
int)
max_io_events, OPEN_MAX - 1);
175 poll_req.dp_timeout = timeout ? timeout : -1;
176 int n = ioctl (devpoll_fd, DP_POLL, &poll_req);
177 if (n == -1 && errno == EINTR)
181 for (
int i = 0; i < n; i ++) {
183 fd_entry_t *fd_ptr = &fd_table [ev_buf [i].fd];
184 if (!fd_ptr->valid || !fd_ptr->accepted)
186 if (ev_buf [i].revents & (POLLERR | POLLHUP))
187 fd_ptr->reactor->in_event ();
188 if (!fd_ptr->valid || !fd_ptr->accepted)
190 if (ev_buf [i].revents & POLLOUT)
191 fd_ptr->reactor->out_event ();
192 if (!fd_ptr->valid || !fd_ptr->accepted)
194 if (ev_buf [i].revents & POLLIN)
195 fd_ptr->reactor->in_event ();
200 void zmq::devpoll_t::worker_routine (
void *arg_)
202 ((devpoll_t*) arg_)->loop ();
static void worker(void *s)