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* sigproc.cc (remove_proc): Don't terminate the currently executing thread.

This commit is contained in:
Christopher Faylor 2011-11-29 15:34:49 +00:00
parent d1fc77322f
commit 480b13a37a
9 changed files with 219 additions and 136 deletions
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5
winsup/cygwin/ChangeLog
View File

@ -1,3 +1,8 @@
2011-11-29 Christopher Faylor <me.cygwin2011@cgf.cx>
* sigproc.cc (remove_proc): Don't terminate the currently executing
thread.
2011-11-28 Christopher Faylor <me.cygwin2011@cgf.cx>
* cygheap.cc (cygheap_fixup_in_child): Accommodate new HEAP_3*

28
winsup/cygwin/cygheap.cc
View File

@ -70,18 +70,22 @@ cygheap_fixup_in_child (bool execed)
{
cygheap->hooks.next = NULL;
cygheap->user_heap.base = NULL; /* We can allocate the heap anywhere */
/* Walk the allocated memory chain looking for orphaned memory from
previous execs */
for (_cmalloc_entry *rvc = cygheap->chain; rvc; rvc = rvc->prev)
{
cygheap_entry *ce = (cygheap_entry *) rvc->data;
if (!rvc->ptr || rvc->b >= NBUCKETS || ce->type <= HEAP_1_START)
continue;
else if (ce->type < HEAP_1_MAX)
ce->type += HEAP_1_MAX; /* Mark for freeing after next exec */
else
_cfree (ce); /* Marked by parent for freeing in child */
}
}
/* Walk the allocated memory chain looking for orphaned memory from
previous execs or forks */
for (_cmalloc_entry *rvc = cygheap->chain; rvc; rvc = rvc->prev)
{
cygheap_entry *ce = (cygheap_entry *) rvc->data;
if (!rvc->ptr || rvc->b >= NBUCKETS || ce->type <= HEAP_1_START)
continue;
else if (ce->type > HEAP_2_MAX)
_cfree (ce); /* Marked for freeing in any child */
else if (!execed)
continue;
else if (ce->type > HEAP_1_MAX)
_cfree (ce); /* Marked for freeing in execed child */
else
ce->type += HEAP_1_MAX; /* Mark for freeing after next exec */
}
}

4
winsup/cygwin/cygheap_malloc.h
View File

@ -33,7 +33,9 @@ enum cygheap_types
HEAP_1_MAX = 100,
HEAP_2_STR,
HEAP_2_DLL,
HEAP_MMAP = 200
HEAP_MMAP,
HEAP_2_MAX = 200,
HEAP_3_FHANDLER
};
extern "C" {

94
winsup/cygwin/fhandler.cc
View File

@ -28,6 +28,7 @@ details. */
#include "ntdll.h"
#include "cygtls.h"
#include "sigproc.h"
#include "shared_info.h"
#include <asm/socket.h>
#define MAX_OVERLAPPED_WRITE_LEN (64 * 1024 * 1024)
@ -37,6 +38,9 @@ static const int CHUNK_SIZE = 1024; /* Used for crlf conversions */
struct __cygwin_perfile *perfile_table;
HANDLE NO_COPY fhandler_base_overlapped::asio_done;
LONG NO_COPY fhandler_base_overlapped::asio_close_counter;
void
fhandler_base::reset (const fhandler_base *from)
{
@ -1152,17 +1156,77 @@ fhandler_base::close ()
return res;
}
DWORD WINAPI
flush_async_io (void *arg)
{
fhandler_base_overlapped *fh = (fhandler_base_overlapped *) arg;
debug_only_printf ("waiting for %s I/O for %s",
(fh->get_access () & GENERIC_WRITE) ? "write" : "read",
fh->get_name ());
SetEvent (fh->get_overlapped ()->hEvent); /* force has_ongoing_io to block */
bool res = fh->has_ongoing_io ();
debug_printf ("finished waiting for I/O from %s, res %d", fh->get_name (),
res);
fh->close ();
delete fh;
InterlockedDecrement (&fhandler_base_overlapped::asio_close_counter);
SetEvent (fhandler_base_overlapped::asio_done);
_my_tls._ctinfo->auto_release ();
return 0;
}
void
fhandler_base_overlapped::flush_all_async_io ()
{
while (asio_close_counter > 0)
if (WaitForSingleObject (asio_done, INFINITE) != WAIT_OBJECT_0)
{
system_printf ("WaitForSingleObject failed, possible data loss in pipe, %E");
break;
}
asio_close_counter = 0;
if (asio_done)
CloseHandle (asio_done);
}
/* Start a thread to handle closing of overlapped asynchronous I/O since
Windows amazingly does not seem to always flush I/O on close. */
void
fhandler_base_overlapped::check_later ()
{
set_close_on_exec (true);
char buf[MAX_PATH];
if (!asio_done
&& !(asio_done = CreateEvent (&sec_none_nih, false, false,
shared_name (buf, "asio",
GetCurrentProcessId ()))))
api_fatal ("CreateEvent failed, %E");
InterlockedIncrement (&asio_close_counter);
if (!new cygthread(flush_async_io, this, "flasio"))
api_fatal ("couldn't create a thread to track async I/O, %E");
debug_printf ("started thread to handle asynchronous closing for %s", get_name ());
}
int
fhandler_base_overlapped::close ()
{
if (is_nonblocking () && io_pending)
int res;
/* Need to treat non-blocking I/O specially because Windows appears to
be brain-dead */
if (is_nonblocking () && has_ongoing_io ())
{
DWORD bytes;
wait_overlapped (1, !!(get_access () & GENERIC_WRITE), &bytes, false);
clone (HEAP_3_FHANDLER)->check_later ();
res = 0;
}
destroy_overlapped ();
return fhandler_base::close ();
else
{
destroy_overlapped ();
res = fhandler_base::close ();
}
return res;
}
int
@ -1414,12 +1478,6 @@ fhandler_base::ptsname_r (char *, size_t)
return ENOTTY;
}
void
fhandler_base::operator delete (void *p)
{
cfree (p);
}
/* Normal I/O constructor */
fhandler_base::fhandler_base () :
status (),
@ -1836,13 +1894,10 @@ fhandler_base_overlapped::has_ongoing_io ()
return false;
if (!IsEventSignalled (get_overlapped ()->hEvent))
{
set_errno (EAGAIN);
return true;
}
return true;
io_pending = false;
DWORD nbytes;
GetOverlappedResult (get_output_handle (), get_overlapped (), &nbytes, 0);
GetOverlappedResult (get_output_handle (), get_overlapped (), &nbytes, true);
return false;
}
@ -1930,7 +1985,7 @@ fhandler_base_overlapped::wait_overlapped (bool inres, bool writing, DWORD *byte
}
else
{
debug_printf ("res %u, err %u", (unsigned) res, err);
debug_printf ("res %u, Win32 Error %u", (unsigned) res, err);
*bytes = (DWORD) -1;
__seterrno_from_win_error (err);
if (writing && err == ERROR_NO_DATA)
@ -1970,7 +2025,10 @@ fhandler_base_overlapped::raw_write (const void *ptr, size_t len)
{
size_t nbytes;
if (has_ongoing_io ())
nbytes = (DWORD) -1;
{
set_errno (EAGAIN);
nbytes = (DWORD) -1;
}
else
{
size_t chunk;

137
winsup/cygwin/fhandler.h
View File

@ -409,7 +409,7 @@ public:
raixput = raixget = ralen = rabuflen = 0;
rabuf = NULL;
}
void operator delete (void *);
void operator delete (void *p) {cfree (p);}
virtual void set_eof () {}
virtual int mkdir (mode_t mode);
virtual int rmdir ();
@ -435,9 +435,9 @@ public:
x->reset (this);
}
virtual fhandler_base *clone ()
virtual fhandler_base *clone (cygheap_types malloc_type = HEAP_FHANDLER)
{
void *ptr = (void *) ccalloc (HEAP_FHANDLER, 1, sizeof (fhandler_base));
void *ptr = (void *) ccalloc (malloc_type, 1, sizeof (fhandler_base));
fhandler_base *fh = new (ptr) fhandler_base (ptr);
copyto (fh);
return fh;
@ -602,9 +602,9 @@ class fhandler_socket: public fhandler_base
x->reset (this);
}
fhandler_socket *clone ()
fhandler_socket *clone (cygheap_types malloc_type = HEAP_FHANDLER)
{
void *ptr = (void *) ccalloc (HEAP_FHANDLER, 1, sizeof (fhandler_socket));
void *ptr = (void *) ccalloc (malloc_type, 1, sizeof (fhandler_socket));
fhandler_socket *fh = new (ptr) fhandler_socket (ptr);
copyto (fh);
return fh;
@ -613,6 +613,8 @@ class fhandler_socket: public fhandler_base
class fhandler_base_overlapped: public fhandler_base
{
static HANDLE asio_done;
static LONG asio_close_counter;
protected:
enum wait_return
{
@ -647,6 +649,9 @@ public:
int close ();
int dup (fhandler_base *child, int);
void check_later ();
static void flush_all_async_io () __attribute__ ((regparm (1)));;
fhandler_base_overlapped (void *) {}
virtual void copyto (fhandler_base *x)
@ -656,13 +661,15 @@ public:
x->reset (this);
}
virtual fhandler_base_overlapped *clone ()
virtual fhandler_base_overlapped *clone (cygheap_types malloc_type = HEAP_FHANDLER)
{
void *ptr = (void *) ccalloc (HEAP_FHANDLER, 1, sizeof (fhandler_base_overlapped));
void *ptr = (void *) ccalloc (malloc_type, 1, sizeof (fhandler_base_overlapped));
fhandler_base_overlapped *fh = new (ptr) fhandler_base_overlapped (ptr);
copyto (fh);
return fh;
}
friend DWORD WINAPI flush_async_io (void *);
};
class fhandler_pipe: public fhandler_base_overlapped
@ -701,9 +708,9 @@ public:
x->reset (this);
}
fhandler_pipe *clone ()
fhandler_pipe *clone (cygheap_types malloc_type = HEAP_FHANDLER)
{
void *ptr = (void *) ccalloc (HEAP_FHANDLER, 1, sizeof (fhandler_pipe));
void *ptr = (void *) ccalloc (malloc_type, 1, sizeof (fhandler_pipe));
fhandler_pipe *fh = new (ptr) fhandler_pipe (ptr);
copyto (fh);
return fh;
@ -739,9 +746,9 @@ public:
x->reset (this);
}
fhandler_fifo *clone ()
fhandler_fifo *clone (cygheap_types malloc_type = HEAP_FHANDLER)
{
void *ptr = (void *) ccalloc (HEAP_FHANDLER, 1, sizeof (fhandler_fifo));
void *ptr = (void *) ccalloc (malloc_type, 1, sizeof (fhandler_fifo));
fhandler_fifo *fh = new (ptr) fhandler_fifo (ptr);
copyto (fh);
return fh;
@ -768,9 +775,9 @@ class fhandler_mailslot : public fhandler_base_overlapped
x->reset (this);
}
fhandler_mailslot *clone ()
fhandler_mailslot *clone (cygheap_types malloc_type = HEAP_FHANDLER)
{
void *ptr = (void *) ccalloc (HEAP_FHANDLER, 1, sizeof (fhandler_mailslot));
void *ptr = (void *) ccalloc (malloc_type, 1, sizeof (fhandler_mailslot));
fhandler_mailslot *fh = new (ptr) fhandler_mailslot (ptr);
copyto (fh);
return fh;
@ -817,9 +824,9 @@ class fhandler_dev_raw: public fhandler_base
x->reset (this);
}
fhandler_dev_raw *clone ()
fhandler_dev_raw *clone (cygheap_types malloc_type = HEAP_FHANDLER)
{
void *ptr = (void *) ccalloc (HEAP_FHANDLER, 1, sizeof (fhandler_dev_raw));
void *ptr = (void *) ccalloc (malloc_type, 1, sizeof (fhandler_dev_raw));
fhandler_dev_raw *fh = new (ptr) fhandler_dev_raw (ptr);
copyto (fh);
return fh;
@ -877,9 +884,9 @@ class fhandler_dev_floppy: public fhandler_dev_raw
x->reset (this);
}
fhandler_dev_floppy *clone ()
fhandler_dev_floppy *clone (cygheap_types malloc_type = HEAP_FHANDLER)
{
void *ptr = (void *) ccalloc (HEAP_FHANDLER, 1, sizeof (fhandler_dev_floppy));
void *ptr = (void *) ccalloc (malloc_type, 1, sizeof (fhandler_dev_floppy));
fhandler_dev_floppy *fh = new (ptr) fhandler_dev_floppy (ptr);
copyto (fh);
return fh;
@ -925,9 +932,9 @@ class fhandler_dev_tape: public fhandler_dev_raw
x->reset (this);
}
fhandler_dev_tape *clone ()
fhandler_dev_tape *clone (cygheap_types malloc_type = HEAP_FHANDLER)
{
void *ptr = (void *) ccalloc (HEAP_FHANDLER, 1, sizeof (fhandler_dev_tape));
void *ptr = (void *) ccalloc (malloc_type, 1, sizeof (fhandler_dev_tape));
fhandler_dev_tape *fh = new (ptr) fhandler_dev_tape (ptr);
copyto (fh);
return fh;
@ -991,9 +998,9 @@ class fhandler_disk_file: public fhandler_base
x->reset (this);
}
fhandler_disk_file *clone ()
fhandler_disk_file *clone (cygheap_types malloc_type = HEAP_FHANDLER)
{
void *ptr = (void *) ccalloc (HEAP_FHANDLER, 1, sizeof (fhandler_disk_file));
void *ptr = (void *) ccalloc (malloc_type, 1, sizeof (fhandler_disk_file));
fhandler_disk_file *fh = new (ptr) fhandler_disk_file (ptr);
copyto (fh);
return fh;
@ -1029,9 +1036,9 @@ class fhandler_cygdrive: public fhandler_disk_file
x->reset (this);
}
fhandler_cygdrive *clone ()
fhandler_cygdrive *clone (cygheap_types malloc_type = HEAP_FHANDLER)
{
void *ptr = (void *) ccalloc (HEAP_FHANDLER, 1, sizeof (fhandler_cygdrive));
void *ptr = (void *) ccalloc (malloc_type, 1, sizeof (fhandler_cygdrive));
fhandler_cygdrive *fh = new (ptr) fhandler_cygdrive (ptr);
copyto (fh);
return fh;
@ -1093,9 +1100,9 @@ class fhandler_serial: public fhandler_base
x->reset (this);
}
fhandler_serial *clone ()
fhandler_serial *clone (cygheap_types malloc_type = HEAP_FHANDLER)
{
void *ptr = (void *) ccalloc (HEAP_FHANDLER, 1, sizeof (fhandler_serial));
void *ptr = (void *) ccalloc (malloc_type, 1, sizeof (fhandler_serial));
fhandler_serial *fh = new (ptr) fhandler_serial (ptr);
copyto (fh);
return fh;
@ -1151,9 +1158,9 @@ class fhandler_termios: public fhandler_base
x->reset (this);
}
virtual fhandler_termios *clone ()
virtual fhandler_termios *clone (cygheap_types malloc_type = HEAP_FHANDLER)
{
void *ptr = (void *) ccalloc (HEAP_FHANDLER, 1, sizeof (fhandler_termios));
void *ptr = (void *) ccalloc (malloc_type, 1, sizeof (fhandler_termios));
fhandler_termios *fh = new (ptr) fhandler_termios (ptr);
copyto (fh);
return fh;
@ -1350,9 +1357,9 @@ private:
x->reset (this);
}
fhandler_console *clone ()
fhandler_console *clone (cygheap_types malloc_type = HEAP_FHANDLER)
{
void *ptr = (void *) ccalloc (HEAP_FHANDLER, 1, sizeof (fhandler_console));
void *ptr = (void *) ccalloc (malloc_type, 1, sizeof (fhandler_console));
fhandler_console *fh = new (ptr) fhandler_console (ptr);
copyto (fh);
return fh;
@ -1394,9 +1401,9 @@ class fhandler_pty_common: public fhandler_termios
x->reset (this);
}
virtual fhandler_pty_common *clone ()
virtual fhandler_pty_common *clone (cygheap_types malloc_type = HEAP_FHANDLER)
{
void *ptr = (void *) ccalloc (HEAP_FHANDLER, 1, sizeof (fhandler_pty_common));
void *ptr = (void *) ccalloc (malloc_type, 1, sizeof (fhandler_pty_common));
fhandler_pty_common *fh = new (ptr) fhandler_pty_common (ptr);
copyto (fh);
return fh;
@ -1448,9 +1455,9 @@ class fhandler_pty_slave: public fhandler_pty_common
x->reset (this);
}
fhandler_pty_slave *clone ()
fhandler_pty_slave *clone (cygheap_types malloc_type = HEAP_FHANDLER)
{
void *ptr = (void *) ccalloc (HEAP_FHANDLER, 1, sizeof (fhandler_pty_slave));
void *ptr = (void *) ccalloc (malloc_type, 1, sizeof (fhandler_pty_slave));
fhandler_pty_slave *fh = new (ptr) fhandler_pty_slave (ptr);
copyto (fh);
return fh;
@ -1507,9 +1514,9 @@ public:
x->reset (this);
}
fhandler_pty_master *clone ()
fhandler_pty_master *clone (cygheap_types malloc_type = HEAP_FHANDLER)
{
void *ptr = (void *) ccalloc (HEAP_FHANDLER, 1, sizeof (fhandler_pty_master));
void *ptr = (void *) ccalloc (malloc_type, 1, sizeof (fhandler_pty_master));
fhandler_pty_master *fh = new (ptr) fhandler_pty_master (ptr);
copyto (fh);
return fh;
@ -1534,9 +1541,9 @@ class fhandler_dev_null: public fhandler_base
x->reset (this);
}
fhandler_dev_null *clone ()
fhandler_dev_null *clone (cygheap_types malloc_type = HEAP_FHANDLER)
{
void *ptr = (void *) ccalloc (HEAP_FHANDLER, 1, sizeof (fhandler_dev_null));
void *ptr = (void *) ccalloc (malloc_type, 1, sizeof (fhandler_dev_null));
fhandler_dev_null *fh = new (ptr) fhandler_dev_null (ptr);
copyto (fh);
return fh;
@ -1569,9 +1576,9 @@ class fhandler_dev_zero: public fhandler_base
x->reset (this);
}
fhandler_dev_zero *clone ()
fhandler_dev_zero *clone (cygheap_types malloc_type = HEAP_FHANDLER)
{
void *ptr = (void *) ccalloc (HEAP_FHANDLER, 1, sizeof (fhandler_dev_zero));
void *ptr = (void *) ccalloc (malloc_type, 1, sizeof (fhandler_dev_zero));
fhandler_dev_zero *fh = new (ptr) fhandler_dev_zero (ptr);
copyto (fh);
return fh;
@ -1607,9 +1614,9 @@ class fhandler_dev_random: public fhandler_base
x->reset (this);
}
fhandler_dev_random *clone ()
fhandler_dev_random *clone (cygheap_types malloc_type = HEAP_FHANDLER)
{
void *ptr = (void *) ccalloc (HEAP_FHANDLER, 1, sizeof (fhandler_dev_random));
void *ptr = (void *) ccalloc (malloc_type, 1, sizeof (fhandler_dev_random));
fhandler_dev_random *fh = new (ptr) fhandler_dev_random (ptr);
copyto (fh);
return fh;
@ -1647,9 +1654,9 @@ class fhandler_dev_mem: public fhandler_base
x->reset (this);
}
fhandler_dev_mem *clone ()
fhandler_dev_mem *clone (cygheap_types malloc_type = HEAP_FHANDLER)
{
void *ptr = (void *) ccalloc (HEAP_FHANDLER, 1, sizeof (fhandler_dev_mem));
void *ptr = (void *) ccalloc (malloc_type, 1, sizeof (fhandler_dev_mem));
fhandler_dev_mem *fh = new (ptr) fhandler_dev_mem (ptr);
copyto (fh);
return fh;
@ -1683,9 +1690,9 @@ class fhandler_dev_clipboard: public fhandler_base
x->reset (this);
}
fhandler_dev_clipboard *clone ()
fhandler_dev_clipboard *clone (cygheap_types malloc_type = HEAP_FHANDLER)
{
void *ptr = (void *) ccalloc (HEAP_FHANDLER, 1, sizeof (fhandler_dev_clipboard));
void *ptr = (void *) ccalloc (malloc_type, 1, sizeof (fhandler_dev_clipboard));
fhandler_dev_clipboard *fh = new (ptr) fhandler_dev_clipboard (ptr);
copyto (fh);
return fh;
@ -1722,9 +1729,9 @@ class fhandler_windows: public fhandler_base
x->reset (this);
}
fhandler_windows *clone ()
fhandler_windows *clone (cygheap_types malloc_type = HEAP_FHANDLER)
{
void *ptr = (void *) ccalloc (HEAP_FHANDLER, 1, sizeof (fhandler_windows));
void *ptr = (void *) ccalloc (malloc_type, 1, sizeof (fhandler_windows));
fhandler_windows *fh = new (ptr) fhandler_windows (ptr);
copyto (fh);
return fh;
@ -1769,9 +1776,9 @@ class fhandler_dev_dsp: public fhandler_base
x->reset (this);
}
fhandler_dev_dsp *clone ()
fhandler_dev_dsp *clone (cygheap_types malloc_type = HEAP_FHANDLER)
{
void *ptr = (void *) ccalloc (HEAP_FHANDLER, 1, sizeof (fhandler_dev_dsp));
void *ptr = (void *) ccalloc (malloc_type, 1, sizeof (fhandler_dev_dsp));
fhandler_dev_dsp *fh = new (ptr) fhandler_dev_dsp (ptr);
copyto (fh);
return fh;
@ -1820,9 +1827,9 @@ class fhandler_virtual : public fhandler_base
x->reset (this);
}
virtual fhandler_virtual *clone ()
virtual fhandler_virtual *clone (cygheap_types malloc_type = HEAP_FHANDLER)
{
void *ptr = (void *) ccalloc (HEAP_FHANDLER, 1, sizeof (fhandler_virtual));
void *ptr = (void *) ccalloc (malloc_type, 1, sizeof (fhandler_virtual));
fhandler_virtual *fh = new (ptr) fhandler_virtual (ptr);
copyto (fh);
return fh;
@ -1852,9 +1859,9 @@ class fhandler_proc: public fhandler_virtual
x->reset (this);
}
virtual fhandler_proc *clone ()
virtual fhandler_proc *clone (cygheap_types malloc_type = HEAP_FHANDLER)
{
void *ptr = (void *) ccalloc (HEAP_FHANDLER, 1, sizeof (fhandler_proc));
void *ptr = (void *) ccalloc (malloc_type, 1, sizeof (fhandler_proc));
fhandler_proc *fh = new (ptr) fhandler_proc (ptr);
copyto (fh);
return fh;
@ -1888,9 +1895,9 @@ class fhandler_procsys: public fhandler_virtual
x->reset (this);
}
fhandler_procsys *clone ()
fhandler_procsys *clone (cygheap_types malloc_type = HEAP_FHANDLER)
{
void *ptr = (void *) ccalloc (HEAP_FHANDLER, 1, sizeof (fhandler_procsys));
void *ptr = (void *) ccalloc (malloc_type, 1, sizeof (fhandler_procsys));
fhandler_procsys *fh = new (ptr) fhandler_procsys (ptr);
copyto (fh);
return fh;
@ -1917,9 +1924,9 @@ class fhandler_procsysvipc: public fhandler_proc
x->reset (this);
}
fhandler_procsysvipc *clone ()
fhandler_procsysvipc *clone (cygheap_types malloc_type = HEAP_FHANDLER)
{
void *ptr = (void *) ccalloc (HEAP_FHANDLER, 1, sizeof (fhandler_procsysvipc));
void *ptr = (void *) ccalloc (malloc_type, 1, sizeof (fhandler_procsysvipc));
fhandler_procsysvipc *fh = new (ptr) fhandler_procsysvipc (ptr);
copyto (fh);
return fh;
@ -1947,9 +1954,9 @@ class fhandler_netdrive: public fhandler_virtual
x->reset (this);
}
fhandler_netdrive *clone ()
fhandler_netdrive *clone (cygheap_types malloc_type = HEAP_FHANDLER)
{
void *ptr = (void *) ccalloc (HEAP_FHANDLER, 1, sizeof (fhandler_netdrive));
void *ptr = (void *) ccalloc (malloc_type, 1, sizeof (fhandler_netdrive));
fhandler_netdrive *fh = new (ptr) fhandler_netdrive (ptr);
copyto (fh);
return fh;
@ -1987,9 +1994,9 @@ class fhandler_registry: public fhandler_proc
x->reset (this);
}
fhandler_registry *clone ()
fhandler_registry *clone (cygheap_types malloc_type = HEAP_FHANDLER)
{
void *ptr = (void *) ccalloc (HEAP_FHANDLER, 1, sizeof (fhandler_registry));
void *ptr = (void *) ccalloc (malloc_type, 1, sizeof (fhandler_registry));
fhandler_registry *fh = new (ptr) fhandler_registry (ptr);
copyto (fh);
return fh;
@ -2019,9 +2026,9 @@ class fhandler_process: public fhandler_proc
x->reset (this);
}
fhandler_process *clone ()
fhandler_process *clone (cygheap_types malloc_type = HEAP_FHANDLER)
{
void *ptr = (void *) ccalloc (HEAP_FHANDLER, 1, sizeof (fhandler_process));
void *ptr = (void *) ccalloc (malloc_type, 1, sizeof (fhandler_process));
fhandler_process *fh = new (ptr) fhandler_process (ptr);
copyto (fh);
return fh;
@ -2048,9 +2055,9 @@ class fhandler_procnet: public fhandler_proc
x->reset (this);
}
fhandler_procnet *clone ()
fhandler_procnet *clone (cygheap_types malloc_type = HEAP_FHANDLER)
{
void *ptr = (void *) ccalloc (HEAP_FHANDLER, 1, sizeof (fhandler_procnet));
void *ptr = (void *) ccalloc (malloc_type, 1, sizeof (fhandler_procnet));
fhandler_procnet *fh = new (ptr) fhandler_procnet (ptr);
copyto (fh);
return fh;

79
winsup/cygwin/select.cc
View File

@ -484,48 +484,51 @@ pipe_data_available (int fd, fhandler_base *fh, HANDLE h, bool writing)
FILE_PIPE_LOCAL_INFORMATION fpli = {0};
bool res = false;
if (NtQueryInformationFile (h,
&iosb,
&fpli,
sizeof (fpli),
FilePipeLocalInformation))
if (!fh->has_ongoing_io ())
{
/* If NtQueryInformationFile fails, optimistically assume the
pipe is writable. This could happen if we somehow
inherit a pipe that doesn't permit FILE_READ_ATTRIBUTES
access on the write end. */
select_printf ("fd %d, %s, NtQueryInformationFile failed",
fd, fh->get_name ());
res = writing ? true : -1;
}
else if (!writing)
{
res = !!fpli.ReadDataAvailable;
paranoid_printf ("fd %d, %s, read avail %u", fd, fh->get_name (), fpli.ReadDataAvailable);
}
else
{
/* If there is anything available in the pipe buffer then signal
that. This means that a pipe could still block since you could
be trying to write more to the pipe than is available in the
buffer but that is the hazard of select(). */
if ((fpli.WriteQuotaAvailable = (fpli.OutboundQuota - fpli.ReadDataAvailable)))
if (NtQueryInformationFile (h,
&iosb,
&fpli,
sizeof (fpli),
FilePipeLocalInformation))
{
paranoid_printf ("fd %d, %s, write: size %lu, avail %lu", fd,
fh->get_name (), fpli.OutboundQuota,
fpli.WriteQuotaAvailable);
res = true;
/* If NtQueryInformationFile fails, optimistically assume the
pipe is writable. This could happen if we somehow
inherit a pipe that doesn't permit FILE_READ_ATTRIBUTES
access on the write end. */
select_printf ("fd %d, %s, NtQueryInformationFile failed",
fd, fh->get_name ());
res = writing ? true : -1;
}
/* If we somehow inherit a tiny pipe (size < PIPE_BUF), then consider
the pipe writable only if it is completely empty, to minimize the
probability that a subsequent write will block. */
else if (fpli.OutboundQuota < PIPE_BUF &&
fpli.WriteQuotaAvailable == fpli.OutboundQuota)
else if (!writing)
{
select_printf ("fd, %s, write tiny pipe: size %lu, avail %lu",
fd, fh->get_name (), fpli.OutboundQuota,
fpli.WriteQuotaAvailable);
res = true;
res = !!fpli.ReadDataAvailable;
paranoid_printf ("fd %d, %s, read avail %u", fd, fh->get_name (), fpli.ReadDataAvailable);
}
else
{
/* If there is anything available in the pipe buffer then signal
that. This means that a pipe could still block since you could
be trying to write more to the pipe than is available in the
buffer but that is the hazard of select(). */
if ((fpli.WriteQuotaAvailable = (fpli.OutboundQuota - fpli.ReadDataAvailable)))
{
paranoid_printf ("fd %d, %s, write: size %lu, avail %lu", fd,
fh->get_name (), fpli.OutboundQuota,
fpli.WriteQuotaAvailable);
res = true;
}
/* If we somehow inherit a tiny pipe (size < PIPE_BUF), then consider
the pipe writable only if it is completely empty, to minimize the
probability that a subsequent write will block. */
else if (fpli.OutboundQuota < PIPE_BUF &&
fpli.WriteQuotaAvailable == fpli.OutboundQuota)
{
select_printf ("fd, %s, write tiny pipe: size %lu, avail %lu",
fd, fh->get_name (), fpli.OutboundQuota,
fpli.WriteQuotaAvailable);
res = true;
}
}
}
return res ?: -!!(fpli.NamedPipeState & FILE_PIPE_CLOSING_STATE);

5
winsup/cygwin/sigproc.cc
View File

@ -1135,7 +1135,10 @@ static bool __stdcall
remove_proc (int ci)
{
if (have_execed)
procs[ci].wait_thread->terminate_thread ();
{
if (_my_tls._ctinfo != procs[ci].wait_thread)
procs[ci].wait_thread->terminate_thread ();
}
else if (procs[ci]->exists ())
return true;

1
winsup/cygwin/syscalls.cc
View File

@ -111,6 +111,7 @@ close_all_files (bool norelease)
if (!have_execed && cygheap->ctty)
cygheap->close_ctty ();
fhandler_base_overlapped::flush_all_async_io ();
if (h)
SetStdHandle (STD_ERROR_HANDLE, h);
cygheap->fdtab.unlock ();

2
winsup/cygwin/tty.h
View File

@ -15,7 +15,7 @@ details. */
#define INP_BUFFER_SIZE 256
#define OUT_BUFFER_SIZE 256
#define NTTYS 64
#define real_tty_attached(p) ((p)->ctty >= 0 && !iscons_dev ((p)->ctty))
#define real_tty_attached(p) ((p)->ctty > 0 && !iscons_dev ((p)->ctty))
/* Input/Output/ioctl events */