libs/newlib-cygwin
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* fhandler.cc (fhandler_base::is_nonblocking): New method.

Browse Source 
(fhandler_base::set_nonblocking): Ditto.
        * fhandler.h (fhandler_base): Declare new methods `is_nonblocking' and
        `set_nonblocking'.
        * fhandler_socket.cc (fhandler_socket::ioctl): Use `set_nonblocking'.
        * fhandler_tty.cc (fhandler_pty_master::process_slave_output):
        Use `is_nonblocking'.
        (fhandler_tty_slave::read): Ditto.
        (fhandler_tty_slave::ioctl): Use `set_nonblocking'.
        (fhandler_pty_master::ioctl): Ditto.
        * net.cc (cygwin_sendto): Fallback to winsock 1 functionality
        in case of nonblocking IO.
        (cygwin_recvfrom): Ditto.
        (cygwin_recv): Ditto.
        (cygwin_send): Ditto.
        * syscalls.cc (_read): Use `is_nonblocking'.
This commit is contained in:
Corinna Vinschen 2001-08-15 07:49:15 +00:00
parent da3ea61edd
commit 5fd12fb0cc
7 changed files with 46 additions and 24 deletions
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19
winsup/cygwin/ChangeLog
View File

@ -1,3 +1,22 @@
Wed Aug 15 9:42:00 2001 Corinna Vinschen <corinna@vinschen.de>
* fhandler.cc (fhandler_base::is_nonblocking): New method.
(fhandler_base::set_nonblocking): Ditto.
* fhandler.h (fhandler_base): Declare new methods `is_nonblocking' and
`set_nonblocking'.
* fhandler_socket.cc (fhandler_socket::ioctl): Use `set_nonblocking'.
* fhandler_tty.cc (fhandler_pty_master::process_slave_output):
Use `is_nonblocking'.
(fhandler_tty_slave::read): Ditto.
(fhandler_tty_slave::ioctl): Use `set_nonblocking'.
(fhandler_pty_master::ioctl): Ditto.
* net.cc (cygwin_sendto): Fallback to winsock 1 functionality
in case of nonblocking IO.
(cygwin_recvfrom): Ditto.
(cygwin_recv): Ditto.
(cygwin_send): Ditto.
* syscalls.cc (_read): Use `is_nonblocking'.
Tue Aug 14 11:05:26 2001 Christopher Faylor <cgf@cygnus.com>
* include/cygwin/version.h: Bump API version.

14
winsup/cygwin/fhandler.cc
View File

@ -1572,3 +1572,17 @@ fhandler_base::fixup_after_fork (HANDLE parent)
debug_printf ("inheriting '%s' from parent", get_name ());
fork_fixup (parent, io_handle, "io_handle");
}
int
fhandler_base::is_nonblocking ()
{
return (openflags & O_NONBLOCK_MASK) != 0;
}
void
fhandler_base::set_nonblocking (int yes)
{
int current = openflags & O_NONBLOCK_MASK;
int new_flags = yes ? (!current ? O_NONBLOCK : current) : 0;
openflags = (openflags & ~O_NONBLOCK_MASK) | new_flags;
}

3
winsup/cygwin/fhandler.h
View File

@ -207,6 +207,9 @@ public:
int get_flags () { return openflags; }
void set_flags (int x) { openflags = x; }
int is_nonblocking ();
void set_nonblocking (int yes);
int get_w_binary () { return FHISSETF (WBINARY); }
int get_r_binary () { return FHISSETF (RBINARY); }

4
winsup/cygwin/fhandler_socket.cc
View File

@ -406,9 +406,7 @@ fhandler_socket::ioctl (unsigned int cmd, void *p)
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);
set_nonblocking (*(int *) p);
}
break;
}

19
winsup/cygwin/fhandler_tty.cc
View File

@ -25,8 +25,6 @@ details. */
#include "pinfo.h"
#include "cygheap.h"
#include "shared_info.h"
#include "cygwin/version.h"
#include "perprocess.h"
/* Tty master stuff */
@ -297,7 +295,7 @@ 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_MASK) != 0)
if (n == 0 && is_nonblocking ())
{
set_errno (EAGAIN);
rc = -1;
@ -748,8 +746,7 @@ fhandler_tty_slave::read (void *ptr, size_t len)
termios_printf ("saw EOF");
break;
}
if (get_ttyp ()->ti.c_lflag & ICANON ||
get_flags () & O_NONBLOCK_MASK)
if (get_ttyp ()->ti.c_lflag & ICANON || is_nonblocking ())
break;
if (totalread >= vmin && (vmin > 0 || totalread > 0))
break;
@ -915,11 +912,7 @@ fhandler_tty_slave::ioctl (unsigned int cmd, void *arg)
case TIOCSWINSZ:
break;
case FIONBIO:
{
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);
}
set_nonblocking (*(int *) arg);
goto out;
default:
set_errno (EINVAL);
@ -1099,11 +1092,7 @@ fhandler_pty_master::ioctl (unsigned int cmd, void *arg)
_kill (-get_ttyp ()->getpgid (), SIGWINCH);
break;
case FIONBIO:
{
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);
}
set_nonblocking (*(int *) arg);
break;
default:
set_errno (EINVAL);

9
winsup/cygwin/net.cc
View File

@ -25,7 +25,6 @@ details. */
#define USE_SYS_TYPES_FD_SET
#include <winsock2.h>
#include "cygerrno.h"
#include "perprocess.h"
#include "security.h"
#include "fhandler.h"
#include "path.h"
@ -512,7 +511,7 @@ cygwin_sendto (int fd,
if (get_inet_addr (to, tolen, &sin, &tolen) == 0)
return -1;
if (!(ovr = wsock_evt.prepare ()))
if (h->is_nonblocking () || !(ovr = wsock_evt.prepare ()))
{
debug_printf ("Fallback to winsock 1 sendto call");
if ((res = sendto (h->get_socket (), (const char *) buf, len, flags,
@ -558,7 +557,7 @@ cygwin_recvfrom (int fd,
fhandler_socket *h = (fhandler_socket *) cygheap->fdtab[fd];
sigframe thisframe (mainthread);
if (!(ovr = wsock_evt.prepare ()))
if (h->is_nonblocking () ||!(ovr = wsock_evt.prepare ()))
{
debug_printf ("Fallback to winsock 1 recvfrom call");
if ((res = recvfrom (h->get_socket (), buf, len, flags, from, fromlen))
@ -1208,7 +1207,7 @@ cygwin_recv (int fd, void *buf, int len, unsigned int flags)
fhandler_socket *h = (fhandler_socket *) cygheap->fdtab[fd];
sigframe thisframe (mainthread);
if (!(ovr = wsock_evt.prepare ()))
if (h->is_nonblocking () || !(ovr = wsock_evt.prepare ()))
{
debug_printf ("Fallback to winsock 1 recv call");
if ((res = recv (h->get_socket (), (char *) buf, len, flags))
@ -1249,7 +1248,7 @@ cygwin_send (int fd, const void *buf, int len, unsigned int flags)
fhandler_socket *h = (fhandler_socket *) cygheap->fdtab[fd];
sigframe thisframe (mainthread);
if (!(ovr = wsock_evt.prepare ()))
if (h->is_nonblocking () || !(ovr = wsock_evt.prepare ()))
{
debug_printf ("Fallback to winsock 1 send call");
if ((res = send (h->get_socket (), (const char *) buf, len, flags))

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_MASK) ? 0 : INFINITE;
DWORD wait = fh->is_nonblocking () ? 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);