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* fhandler.cc (fhandler_base::fcntl): Use new O_NONBLOCK_MASK define.

Browse Source 
* fhandler.h: Move definitions of O_NOSYMLINK, O_DIROPEN and
        OLD_O_NDELAY from winsup.h to here. Add O_NONBLOCK_MASK define.
        * fhandler_socket.cc (fhandler_socket::close): Add hack to allow
        a graceful shutdown even if shutdown() hasn't been called by the
        application. Add debug output.
        (fhandler_socket::ioctl): Set fhandler's NONBLOCK flag according
        to FIONBIO setting.
        (fhandler_socket::fcntl): Use new O_NONBLOCK_MASK define. Actually
        set `request' before using it.
        * fhandler_tty.cc: Use new O_NONBLOCK_MASK define throughout.
        (fhandler_tty_slave::ioctl): Set fhandler's NONBLOCK flag according
        to FIONBIO setting.
        (fhandler_pty_master::ioctl): Ditto.
        * net.cc (wsock_event::prepare): Compare WSACreateEvent return code
        with `WSA_INVALID_EVENT' according to MSDN.
        * syscalls.cc (_read): Use new O_NONBLOCK_MASK define.
This commit is contained in:
Corinna Vinschen 2001-08-14 07:41:45 +00:00
parent 52c80be814
commit 6a574f1ad6
8 changed files with 68 additions and 28 deletions
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20
winsup/cygwin/ChangeLog
View File

@ -1,3 +1,23 @@
Mon Aug 13 22:34:00 2001 Corinna Vinschen <corinna@vinschen.de>
* fhandler.cc (fhandler_base::fcntl): Use new O_NONBLOCK_MASK define.
* fhandler.h: Move definitions of O_NOSYMLINK, O_DIROPEN and
OLD_O_NDELAY from winsup.h to here. Add O_NONBLOCK_MASK define.
* fhandler_socket.cc (fhandler_socket::close): Add hack to allow
a graceful shutdown even if shutdown() hasn't been called by the
application. Add debug output.
(fhandler_socket::ioctl): Set fhandler's NONBLOCK flag according
to FIONBIO setting.
(fhandler_socket::fcntl): Use new O_NONBLOCK_MASK define. Actually
set `request' before using it.
* fhandler_tty.cc: Use new O_NONBLOCK_MASK define throughout.
(fhandler_tty_slave::ioctl): Set fhandler's NONBLOCK flag according
to FIONBIO setting.
(fhandler_pty_master::ioctl): Ditto.
* net.cc (wsock_event::prepare): Compare WSACreateEvent return code
with `WSA_INVALID_EVENT' according to MSDN.
* syscalls.cc (_read): Use new O_NONBLOCK_MASK define.
Wed Aug 8 15:24:59 2001 Christopher Faylor <cgf@cygnus.com>
* include/wchar.h: Define __need_wint_t.

2
winsup/cygwin/fhandler.cc
View File

@ -1094,7 +1094,7 @@ int fhandler_base::fcntl (int cmd, void *arg)
* Since O_ASYNC isn't defined in fcntl.h it's currently
* ignored as well.
*/
const int allowed_flags = O_APPEND | O_NONBLOCK | OLD_O_NDELAY;
const int allowed_flags = O_APPEND | O_NONBLOCK_MASK;
int new_flags = (int) arg & allowed_flags;
/* Carefully test for the O_NONBLOCK or deprecated OLD_O_NDELAY flag.
Set only the flag that has been passed in. If both are set, just

13
winsup/cygwin/fhandler.h
View File

@ -118,6 +118,19 @@ enum
#define FHSTATOFF 0
/* fcntl flags used only internaly. */
#define O_NOSYMLINK 0x080000
#define O_DIROPEN 0x100000
/* newlib used to define O_NDELAY differently from O_NONBLOCK. Now it
properly defines both to be the same. Unfortunately, we have to
behave properly the old version, too, to accomodate older executables. */
#define OLD_O_NDELAY (CYGWIN_VERSION_CHECK_FOR_OLD_O_NONBLOCK ? 4 : 0)
/* Care for the old O_NDELAY flag. If one of the flags is set,
both flags are set. */
#define O_NONBLOCK_MASK (O_NONBLOCK | OLD_O_NDELAY)
extern const char *windows_device_names[];
extern struct __cygwin_perfile *perfile_table;
#define __fmode (*(user_data->fmode_ptr))

25
winsup/cygwin/fhandler_socket.cc
View File

@ -257,6 +257,15 @@ fhandler_socket::close ()
int res = 0;
sigframe thisframe (mainthread);
/* HACK to allow a graceful shutdown even if shutdown() hasn't been
called by the application. Note that this isn't the ultimate
solution but it helps in many cases. */
struct linger linger;
linger.l_onoff = 1;
linger.l_linger = 60; /* seconds. 2MSL according to BSD implementation. */
setsockopt (get_socket (), SOL_SOCKET, SO_LINGER,
(const char *)&linger, sizeof linger);
if (closesocket (get_socket ()))
{
set_winsock_errno ();
@ -265,6 +274,7 @@ fhandler_socket::close ()
close_secret_event ();
debug_printf ("%d = fhandler_socket::close()", res);
return res;
}
@ -395,6 +405,10 @@ fhandler_socket::ioctl (unsigned int cmd, void *p)
/* Start AsyncSelect if async socket unblocked */
if (*(int *) p && get_async ())
WSAAsyncSelect (get_socket (), gethwnd (), WM_ASYNCIO, ASYNC_MASK);
int current = get_flags () & O_NONBLOCK_MASK;
int new_flags = *(int *) p ? (!current ? O_NONBLOCK : current) : 0;
set_flags ((get_flags () & ~O_NONBLOCK_MASK) | new_flags);
}
break;
}
@ -412,20 +426,17 @@ fhandler_socket::fcntl (int cmd, void *arg)
{
case F_SETFL:
{
/* Care for the old O_NDELAY flag. If one of the flags is set,
both flags are set. */
const int allowed_flags = O_NONBLOCK | OLD_O_NDELAY;
/* Carefully test for the O_NONBLOCK or deprecated OLD_O_NDELAY flag.
Set only the flag that has been passed in. If both are set, just
record O_NONBLOCK. */
int new_flags = (int) arg & allowed_flags;
int new_flags = (int) arg & O_NONBLOCK_MASK;
if ((new_flags & OLD_O_NDELAY) && (new_flags & O_NONBLOCK))
new_flags = O_NONBLOCK;
current = get_flags () & allowed_flags;
current = get_flags () & O_NONBLOCK_MASK;
request = new_flags ? 1 : 0;
if (!!current != !!new_flags && (res = ioctl (FIONBIO, &request)))
break;
set_flags ((get_flags () & ~allowed_flags) | new_flags);
set_flags ((get_flags () & ~O_NONBLOCK_MASK) | new_flags);
break;
}
default:

24
winsup/cygwin/fhandler_tty.cc
View File

@ -25,6 +25,8 @@ details. */
#include "pinfo.h"
#include "cygheap.h"
#include "shared_info.h"
#include "cygwin/version.h"
#include "perprocess.h"
/* Tty master stuff */
@ -295,7 +297,7 @@ fhandler_pty_master::process_slave_output (char *buf, size_t len, int pktmode_on
break;
if (hit_eof ())
goto out;
if (n == 0 && (get_flags () & (O_NONBLOCK | O_NDELAY)) != 0)
if (n == 0 && (get_flags () & O_NONBLOCK_MASK) != 0)
{
set_errno (EAGAIN);
rc = -1;
@ -747,7 +749,7 @@ fhandler_tty_slave::read (void *ptr, size_t len)
break;
}
if (get_ttyp ()->ti.c_lflag & ICANON ||
get_flags () & (O_NONBLOCK | O_NDELAY))
get_flags () & O_NONBLOCK_MASK)
break;
if (totalread >= vmin && (vmin > 0 || totalread > 0))
break;
@ -913,10 +915,11 @@ fhandler_tty_slave::ioctl (unsigned int cmd, void *arg)
case TIOCSWINSZ:
break;
case FIONBIO:
if (* (int *) arg)
set_flags (get_flags () | O_NONBLOCK);
else
set_flags (get_flags () & ~O_NONBLOCK);
{
int current = get_flags () & O_NONBLOCK_MASK;
int new_flags = *(int *) arg ? (!current ? O_NONBLOCK : current) : 0;
set_flags ((get_flags () & ~O_NONBLOCK_MASK) | new_flags);
}
goto out;
default:
set_errno (EINVAL);
@ -1096,10 +1099,11 @@ fhandler_pty_master::ioctl (unsigned int cmd, void *arg)
_kill (-get_ttyp ()->getpgid (), SIGWINCH);
break;
case FIONBIO:
if (* (int *) arg)
set_flags (get_flags () | O_NONBLOCK);
else
set_flags (get_flags () & ~O_NONBLOCK);
{
int current = get_flags () & O_NONBLOCK_MASK;
int new_flags = *(int *) arg ? (!current ? O_NONBLOCK : current) : 0;
set_flags ((get_flags () & ~O_NONBLOCK_MASK) | new_flags);
}
break;
default:
set_errno (EINVAL);

2
winsup/cygwin/net.cc
View File

@ -70,7 +70,7 @@ wsock_event::prepare ()
LPWSAOVERLAPPED ret = NULL;
SetLastError (0);
if ((event = WSACreateEvent ()))
if ((event = WSACreateEvent ()) != WSA_INVALID_EVENT)
{
memset (&ovr, 0, sizeof ovr);
ovr.hEvent = event;

2
winsup/cygwin/syscalls.cc
View File

@ -271,7 +271,7 @@ _read (int fd, void *ptr, size_t len)
// set_sig_errno (0);
fh = cygheap->fdtab[fd];
DWORD wait = (fh->get_flags () & (O_NONBLOCK | OLD_O_NDELAY)) ? 0 : INFINITE;
DWORD wait = (fh->get_flags () & O_NONBLOCK_MASK) ? 0 : INFINITE;
/* Could block, so let user know we at least got here. */
syscall_printf ("read (%d, %p, %d) %sblocking, sigcatchers %d", fd, ptr, len, wait ? "" : "non", sigcatchers);

8
winsup/cygwin/winsup.h
View File

@ -244,14 +244,6 @@ extern SYSTEM_INFO system_info;
#define STD_WBITS (S_IWUSR)
#define STD_XBITS (S_IXUSR | S_IXGRP | S_IXOTH)
#define O_NOSYMLINK 0x080000
#define O_DIROPEN 0x100000
/* newlib used to define O_NDELAY differently from O_NONBLOCK. Now it
properly defines both to be the same. Unfortunately, we have to
behave properly the old version, too, to accomodate older executables. */
#define OLD_O_NDELAY (CYGWIN_VERSION_CHECK_FOR_OLD_O_NONBLOCK ? 4 : 0)
/* The title on program start. */
extern char *old_title;
extern BOOL display_title;