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authorMiles Bader <miles@gnu.org>1995-08-16 16:12:54 +0000
committerMiles Bader <miles@gnu.org>1995-08-16 16:12:54 +0000
commitbcc04043a2a656c0fedc6ede1327fae38bccf769 (patch)
tree0a65520beffd02631877f4f5a298f1e8676f3127
parentb5568670fb475bee88df1ac78ab3a37574d32a8f (diff)
(S_io_read, S_interrupt_operation, S_io_readable, S_io_select):
Use pipe_release_reader instead of pipe_release. (S_io_write): Use pipe_release_writer instead of pipe_release. (S_io_readable, S_io_read): Reflect EPIPE as EOF.
-rw-r--r--pflocal/io.c52
1 files changed, 26 insertions, 26 deletions
diff --git a/pflocal/io.c b/pflocal/io.c
index 1f7de460..a8b3c29e 100644
--- a/pflocal/io.c
+++ b/pflocal/io.c
@@ -49,17 +49,17 @@ S_io_read (struct sock_user *user,
if (!user)
return EOPNOTSUPP;
-{unsigned refs;
- mach_port_get_refs (mach_task_self (), user->pi.port_right, MACH_PORT_RIGHT_SEND, &refs);
- debug (user, "send rights: %d", refs);}
err = sock_aquire_read_pipe (user->sock, &pipe);
- if (!err)
+ if (err == EPIPE)
+ /* EOF */
+ *data_len = 0;
+ else if (!err)
{
err =
pipe_read (pipe, user->sock->flags & SOCK_NONBLOCK, NULL,
data, data_len, amount);
- pipe_release (pipe);
+ pipe_release_reader (pipe);
}
return err;
@@ -82,9 +82,6 @@ S_io_write (struct sock_user *user,
if (!user)
return EOPNOTSUPP;
-{unsigned refs;
- mach_port_get_refs (mach_task_self (), user->pi.port_right, MACH_PORT_RIGHT_SEND, &refs);
- debug (user, "send rights: %d", refs);}
err = sock_aquire_write_pipe (user->sock, &pipe);
if (!err)
@@ -106,7 +103,7 @@ S_io_write (struct sock_user *user,
ports_port_deref (source_addr);
}
- pipe_release (pipe);
+ pipe_release_writer (pipe);
}
return err;
@@ -143,7 +140,7 @@ S_interrupt_operation (mach_port_t port)
/* Indicate to currently waiting threads they've been interrupted. */
pipe->interrupt_seq_num++;
pipe_kick (pipe);
- pipe_release (pipe);
+ pipe_release_reader (pipe);
}
ports_port_deref (user);
@@ -164,10 +161,13 @@ S_io_readable (struct sock_user *user, mach_msg_type_number_t *amount)
return EOPNOTSUPP;
err = sock_aquire_read_pipe (user->sock, &pipe);
- if (!err)
+ if (err == EPIPE)
+ /* EOF */
+ *amount = 0;
+ else if (!err)
{
*amount = pipe_readable (user->sock->read_pipe, 1);
- pipe_release (pipe);
+ pipe_release_reader (pipe);
}
return err;
@@ -219,7 +219,7 @@ S_io_select (struct sock_user *user, int *select_type, int *id_tag)
*select_type |= ~SELECT_URG; /* We never return these. */
sock = user->sock;
-debug (sock, "lock");
+ debug (sock, "lock");
mutex_lock (&sock->lock);
if (sock->listen_queue)
@@ -227,31 +227,31 @@ debug (sock, "lock");
only select for reading, which will block until a connection request
comes along. */
{
-debug (sock, "unlock");
+ debug (sock, "unlock");
mutex_unlock (&sock->lock);
if (*select_type & SELECT_WRITE)
/* Meaningless for a non-i/o socket. */
-debug (sock, "ebadf");
+ debug (sock, "ebadf");
return EBADF;
if (*select_type & SELECT_READ)
/* Wait for a connect. Passing in NULL for REQ means that the
request won't be dequeued. */
-{debug (sock, "waiting for connection");
+ {debug (sock, "waiting for connection");
return
connq_listen (sock->listen_queue,
sock->flags & SOCK_NONBLOCK, NULL, NULL);
-}
+ }
}
else
/* Sock is a normal read/write socket. */
{
if ((*select_type & SELECT_WRITE) && !sock->write_pipe)
{
-debug (sock, "unlock");
+ debug (sock, "unlock");
mutex_unlock (&sock->lock);
-debug (sock, "ebadf");
+ debug (sock, "ebadf");
return EBADF;
}
/* Otherwise, pipes are always writable... */
@@ -260,17 +260,17 @@ debug (sock, "ebadf");
{
struct pipe *pipe = sock->read_pipe;
- pipe_aquire (pipe);
+ pipe_aquire_reader (pipe);
/* We unlock SOCK here, as it's not subsequently used, and we might
go to sleep waiting for readable data. */
-debug (sock, "unlock");
+ debug (sock, "unlock");
mutex_unlock (&sock->lock);
if (!pipe)
-{debug (sock, "ebadf");
+ {debug (sock, "ebadf");
return EBADF;
-}
+ }
if (! pipe_is_readable (pipe, 1))
/* Nothing to read on PIPE yet... */
@@ -282,12 +282,12 @@ debug (sock, "unlock");
readable. */
err = pipe_wait (pipe, 0, 1);
- pipe_release (pipe);
+ pipe_release_reader (pipe);
}
else
-{debug (sock, "unlock");
+ {debug (sock, "unlock");
mutex_unlock (&sock->lock);
-}
+ }
}
debug (sock, "out");