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Cygwin: AF_UNIX: adapt socketpair to mqueues

This commit is contained in:
Ken Brown 2021-05-10 17:48:35 -04:00
parent 37226b2763
commit 61116b051a
1 changed files with 43 additions and 23 deletions
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66
winsup/cygwin/fhandler_socket_unix.cc
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@ -1271,8 +1271,9 @@ fhandler_socket_unix::socket (int af, int type, int protocol, int flags)
}
if (create_shmem () < 0)
return -1;
rmem (262144);
wmem (262144);
/* rmem and wmem have no effect in mqueue implementation. */
/* rmem (262144); */
/* wmem (262144); */
set_addr_family (AF_UNIX);
set_socket_type (type);
set_flags (O_RDWR | O_BINARY);
@ -1291,6 +1292,7 @@ int
fhandler_socket_unix::socketpair (int af, int type, int protocol, int flags,
fhandler_socket *fh_out)
{
mqd_t mqd;
sun_name_t sun;
fhandler_socket_unix *fh = (fhandler_socket_unix *) fh_out;
@ -1310,30 +1312,16 @@ fhandler_socket_unix::socketpair (int af, int type, int protocol, int flags,
if (fh->create_shmem () < 0)
goto fh_shmem_failed;
/* socket() on both sockets */
rmem (262144);
fh->rmem (262144);
wmem (262144);
fh->wmem (262144);
/* rmem (262144); */
/* fh->rmem (262144); */
/* wmem (262144); */
/* fh->wmem (262144); */
set_addr_family (AF_UNIX);
fh->set_addr_family (AF_UNIX);
set_socket_type (type);
fh->set_socket_type (type);
set_cred ();
fh->set_cred ();
set_unique_id ();
set_ino (get_unique_id ());
/* bind/listen 1st socket */
gen_mqueue_name ();
if (create_mqueue () < 0)
goto create_mqueue_failed;
sun_path (&sun);
fh->peer_sun_path (&sun);
connect_state (listener);
/* connect 2nd socket, even for DGRAM. There's no difference as far
as socketpairs are concerned. */
if (fh->open_mqueue (get_mqueue_name (), false) == (mqd_t) -1)
goto fh_open_mqueue_failed;
fh->connect_state (connected);
set_flags (O_RDWR | O_BINARY);
fh->set_flags (O_RDWR | O_BINARY);
if (flags & SOCK_NONBLOCK)
{
set_nonblocking (true);
@ -1344,8 +1332,40 @@ fhandler_socket_unix::socketpair (int af, int type, int protocol, int flags,
set_close_on_exec (true);
fh->set_close_on_exec (true);
}
set_cred ();
fh->set_cred ();
set_unique_id ();
fh->set_unique_id ();
set_ino (get_unique_id ());
fh->set_ino (fh->get_unique_id ());
/* Create and open mqueues. */
gen_mqueue_name ();
if (create_mqueue () < 0)
goto create_mqueue_failed;
mqd = fh->open_mqueue (get_mqueue_name (), is_nonblocking ());
if (mqd == (mqd_t) -1)
goto fh_open_mqueue_failed;
fh->set_mqd_out (mqd);
fh->gen_mqueue_name ();
if (fh->create_mqueue () < 0)
goto fh_create_mqueue_failed;
mqd = open_mqueue (get_mqueue_name (), is_nonblocking ());
if (mqd == (mqd_t) -1)
goto open_mqueue_failed;
set_mqd_out (mqd);
/* bind 1st socket */
sun_path (&sun);
fh->peer_sun_path (&sun);
connect_state (connected);
/* connect 2nd socket, even for DGRAM. There's no difference as far
as socketpairs are concerned. */
fh->connect_state (connected);
return 0;
open_mqueue_failed:
mq_close (fh->get_mqd_in ());
mq_unlink (fh->get_mqueue_name ());
fh_create_mqueue_failed:
mq_close (fh->get_mqd_out ());
fh_open_mqueue_failed:
mq_close (get_mqd_in ());
mq_unlink (get_mqueue_name ());