Fix the PGM support on win64

On win64 the size of file descriptor is not the same as size of int.
The bug in PGM transport caused a runtime error because of this.
The problem is fixed now.
Signed-off-by: Martin Sustrik <sustrik@250bpm.com>

src/pgm_receiver.cpp

@@ -60,8 +60,8 @@ int zmq::pgm_receiver_t::init (bool udp_encapsulation_, const char *network_)
 void zmq::pgm_receiver_t::plug (io_thread_t *io_thread_, session_t *session_)
 {
     //  Retrieve PGM fds and start polling.
-    int socket_fd;
-    int waiting_pipe_fd;
+    fd_t socket_fd = retired_fd;
+    fd_t waiting_pipe_fd = retired_fd;
     pgm_socket.get_receiver_fds (&socket_fd, &waiting_pipe_fd);
     socket_handle = add_fd (socket_fd);
     pipe_handle = add_fd (waiting_pipe_fd);

src/pgm_sender.cpp

@@ -65,10 +65,10 @@ int zmq::pgm_sender_t::init (bool udp_encapsulation_, const char *network_)
 void zmq::pgm_sender_t::plug (io_thread_t *io_thread_, session_t *session_)
 {
     //  Alocate 2 fds for PGM socket.
-    int downlink_socket_fd = 0;
-    int uplink_socket_fd = 0;
-    int rdata_notify_fd = 0;
-    int pending_notify_fd = 0;
+    fd_t downlink_socket_fd = retired_fd;
+    fd_t uplink_socket_fd = retired_fd;
+    fd_t rdata_notify_fd = retired_fd;
+    fd_t pending_notify_fd = retired_fd;
 
     encoder.set_session (session_);
 

src/pgm_socket.cpp

@@ -376,8 +376,8 @@ zmq::pgm_socket_t::~pgm_socket_t ()
 
 //  Get receiver fds. receive_fd_ is signaled for incoming packets,
 //  waiting_pipe_fd_ is signaled for state driven events and data.
-void zmq::pgm_socket_t::get_receiver_fds (int *receive_fd_, 
-    int *waiting_pipe_fd_)
+void zmq::pgm_socket_t::get_receiver_fds (fd_t *receive_fd_, 
+    fd_t *waiting_pipe_fd_)
 {
     socklen_t socklen;
     bool rc;
@@ -403,8 +403,8 @@ void zmq::pgm_socket_t::get_receiver_fds (int *receive_fd_,
 //  receive_fd_ is for incoming back-channel protocol packets.
 //  rdata_notify_fd_ is raised for waiting repair transmissions.
 //  pending_notify_fd_ is for state driven events.
-void zmq::pgm_socket_t::get_sender_fds (int *send_fd_, int *receive_fd_, 
-    int *rdata_notify_fd_, int *pending_notify_fd_)
+void zmq::pgm_socket_t::get_sender_fds (fd_t *send_fd_, fd_t *receive_fd_, 
+    fd_t *rdata_notify_fd_, fd_t *pending_notify_fd_)
 {
     socklen_t socklen;
     bool rc;

src/pgm_socket.hpp

@@ -36,6 +36,7 @@
 #include <pgm/in.h>
 #endif
 
+#include "fd.hpp"
 #include "options.hpp"
 
 namespace zmq
@@ -56,12 +57,12 @@ namespace zmq
         int init (bool udp_encapsulation_, const char *network_);
         
         //   Get receiver fds and store them into user allocated memory.
-        void get_receiver_fds (int *receive_fd_, int *waiting_pipe_fd_);
+        void get_receiver_fds (fd_t *receive_fd_, fd_t *waiting_pipe_fd_);
 
         //   Get sender and receiver fds and store it to user allocated 
         //   memory. Receive fd is used to process NAKs from peers.
-        void get_sender_fds (int *send_fd_, int *receive_fd_,
-            int *rdata_notify_fd_, int *pending_notify_fd_);
+        void get_sender_fds (fd_t *send_fd_, fd_t *receive_fd_,
+            fd_t *rdata_notify_fd_, fd_t *pending_notify_fd_);
 
         //  Send data as one APDU, transmit window owned memory.
         size_t send (unsigned char *data_, size_t data_len_);