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gsocket: add G_IO_ERROR_CONNECTION_CLOSED

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Add G_IO_ERROR_CONNECTION_CLOSED as an alias for
G_IO_ERROR_BROKEN_PIPE, and also return it on ECONNRESET.

It doesn't really make sense to try to distinguish EPIPE and
ECONNRESET at the GLib level, since the exact choice of which error
gets returned in what conditions depends on the OS. Given that, we
ought to map the two errors to the same value, and since we're already
mapping EPIPE to G_IO_ERROR_BROKEN_PIPE, we need to map ECONNRESET to
that too. But the existing name doesn't really make sense for sockets,
so we add a new name.

https://bugzilla.gnome.org/show_bug.cgi?id=728928
This commit is contained in:
Dan Winship 2011-08-19 10:23:12 -04:00
parent 64f9bf96fd
commit 967fedc0ae
3 changed files with 49 additions and 8 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

10
gio/gioenums.h
View File

@ -470,12 +470,17 @@ typedef enum {
* @G_IO_ERROR_PROXY_NOT_ALLOWED: Proxy connection is not allowed by ruleset.
* Since 2.26
* @G_IO_ERROR_BROKEN_PIPE: Broken pipe. Since 2.36
* @G_IO_ERROR_CONNECTION_CLOSED: Connection closed by peer. Note that this
* is the same code as %G_IO_ERROR_BROKEN_PIPE; before 2.44 some
* "connection closed" errors returned %G_IO_ERROR_BROKEN_PIPE, but others
* returned %G_IO_ERROR_FAILED. Now they should all return the same
* value, which has this more logical name. Since 2.44.
*
* Error codes returned by GIO functions.
*
* Note that this domain may be extended in future GLib releases. In
* general, new error codes either only apply to new APIs, or else
* replace #G_IO_ERROR_FAILED in cases that were not explicitly
* replace %G_IO_ERROR_FAILED in cases that were not explicitly
* distinguished before. You should therefore avoid writing code like
* |[<!-- language="C" -->
* if (g_error_matches (error, G_IO_ERROR, G_IO_ERROR_FAILED))
@ -532,7 +537,8 @@ typedef enum {
G_IO_ERROR_PROXY_AUTH_FAILED,
G_IO_ERROR_PROXY_NEED_AUTH,
G_IO_ERROR_PROXY_NOT_ALLOWED,
G_IO_ERROR_BROKEN_PIPE
G_IO_ERROR_BROKEN_PIPE,
G_IO_ERROR_CONNECTION_CLOSED = G_IO_ERROR_BROKEN_PIPE
} GIOErrorEnum;

9
gio/gioerror.c
View File

@ -242,6 +242,12 @@ g_io_error_from_errno (gint err_no)
break;
#endif
#ifdef ECONNRESET
case ECONNRESET:
return G_IO_ERROR_CONNECTION_CLOSED;
break;
#endif
default:
return G_IO_ERROR_FAILED;
break;
@ -305,6 +311,9 @@ g_io_error_from_win32_error (gint error_code)
case WSAEAFNOSUPPORT:
return G_IO_ERROR_NOT_SUPPORTED;
case WSAECONNRESET:
return G_IO_ERROR_CONNECTION_CLOSED;
default:
return G_IO_ERROR_FAILED;
}

38
gio/tests/socket.c
View File

@ -317,9 +317,23 @@ test_ip_async (GSocketFamily family)
g_thread_join (data->thread);
len = g_socket_receive (client, buf, sizeof (buf), NULL, &error);
g_assert_no_error (error);
g_assert_cmpint (len, ==, 0);
if (family == G_SOCKET_FAMILY_IPV4)
{
/* Test that reading on a remote-closed socket gets back 0 bytes. */
len = g_socket_receive_with_blocking (client, buf, sizeof (buf),
TRUE, NULL, &error);
g_assert_no_error (error);
g_assert_cmpint (len, ==, 0);
}
else
{
/* Test that writing to a remote-closed socket gets back CONNECTION_CLOSED. */
len = g_socket_send_with_blocking (client, testbuf, strlen (testbuf) + 1,
TRUE, NULL, &error);
g_assert_error (error, G_IO_ERROR, G_IO_ERROR_CONNECTION_CLOSED);
g_assert_cmpint (len, ==, -1);
g_clear_error (&error);
}
g_socket_close (client, &error);
g_assert_no_error (error);
@ -406,9 +420,21 @@ test_ip_sync (GSocketFamily family)
g_thread_join (data->thread);
len = g_socket_receive (client, buf, sizeof (buf), NULL, &error);
g_assert_no_error (error);
g_assert_cmpint (len, ==, 0);
if (family == G_SOCKET_FAMILY_IPV4)
{
/* Test that reading on a remote-closed socket gets back 0 bytes. */
len = g_socket_receive (client, buf, sizeof (buf), NULL, &error);
g_assert_no_error (error);
g_assert_cmpint (len, ==, 0);
}
else
{
/* Test that writing to a remote-closed socket gets back CONNECTION_CLOSED. */
len = g_socket_send (client, testbuf, strlen (testbuf) + 1, NULL, &error);
g_assert_error (error, G_IO_ERROR, G_IO_ERROR_CONNECTION_CLOSED);
g_assert_cmpint (len, ==, -1);
g_clear_error (&error);
}
g_socket_close (client, &error);
g_assert_no_error (error);