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* debug.cc (mark_closed): Rename from debug_mark_closed and make static. 

(setclexec_pid): New function for marking saved handle as close-on-exec.
(delete_handle): New function.
(debug_fixup_after_fork): New function.
* debug.h: Declare new functions, remove obsolete ones.
* fork.cc (debug_fixup_after_fork): Call to cleanup close-on-exec handles.
* fhandler.cc (fhandler_disk_file::close): Minor reorg.
(fhandler_base::set_inheritance): Set flag appropriately for debugging when
close-on-exec so forked process can delete closed handles.
* tty.h (open_output_mutex): Eliminate unneeded argument.
(open_input_mutex): Ditto.
* fhandler_tty.cc (fhandler_tty_slave::open): reflect open_*_mutex argument
changes.
* fhandler.h (fhandler_socket): Make saw_shutdown_* functions type bool.
* tty.cc (tty::get_event): Eliminate unneeded argument.
(tty::common_init): Reflect change to get_event.  Events should always be
inherited.
This commit is contained in:
Christopher Faylor 2001-09-01 05:17:34 +00:00
parent a26a4cdbe0
commit e62ac9e869
9 changed files with 95 additions and 44 deletions
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25
winsup/cygwin/ChangeLog
View File

@ -1,3 +1,28 @@
Sat Sep 1 01:10:07 2001 Christopher Faylor <cgf@cygnus.com>
* debug.cc (mark_closed): Rename from debug_mark_closed and make
static.
(setclexec_pid): New function for marking saved handle as
close-on-exec.
(delete_handle): New function.
(debug_fixup_after_fork): New function.
* debug.h: Declare new functions, remove obsolete ones.
* fork.cc (debug_fixup_after_fork): Call to cleanup close-on-exec
handles.
* fhandler.cc (fhandler_disk_file::close): Minor reorg.
(fhandler_base::set_inheritance): Set flag appropriately for debugging
when close-on-exec so forked process can delete closed handles.
* tty.h (open_output_mutex): Eliminate unneeded argument.
(open_input_mutex): Ditto.
* fhandler_tty.cc (fhandler_tty_slave::open): reflect open_*_mutex
argument changes.
* fhandler.h (fhandler_socket): Make saw_shutdown_* functions type
bool.
* tty.cc (tty::get_event): Eliminate unneeded argument.
(tty::common_init): Reflect change to get_event. Events should always
be inherited.
Fri Aug 31 21:39:00 2001 Corinna Vinschen <corinna@vinschen.de>
* security.cc (create_token): Change initialization of `exp' to comply

50
winsup/cygwin/debug.cc
View File

@ -179,13 +179,14 @@ typedef struct _h
const char *name;
const char *func;
int ln;
DWORD clexec_pid;
struct _h *next;
} handle_list;
static NO_COPY handle_list starth = {0, NULL, NULL, NULL, 0, NULL};
static NO_COPY handle_list starth = {0, NULL, NULL, NULL, 0, 0, NULL};
static NO_COPY handle_list *endh = NULL;
static handle_list NO_COPY freeh[1000] = {{0, NULL, NULL, NULL, 0, NULL}};
static handle_list NO_COPY freeh[1000] = {{0, NULL, NULL, NULL, 0, 0, NULL}};
#define NFREEH (sizeof (freeh) / sizeof (freeh[0]))
static muto NO_COPY *debug_lock = NULL;
@ -196,6 +197,8 @@ static muto NO_COPY *debug_lock = NULL;
#define unlock_debug() \
do {if (debug_lock) debug_lock->release (); } while (0)
static bool __stdcall mark_closed (const char *, int, HANDLE, const char *, BOOL);
void
debug_init ()
{
@ -217,6 +220,14 @@ out:
return hl;
}
void
setclexec_pid (HANDLE h, bool setit)
{
handle_list *hl = find_handle (h);
if (hl)
hl->clexec_pid = setit ? GetCurrentProcessId () : 0;
}
/* Create a new handle record */
static handle_list * __stdcall
newh ()
@ -275,8 +286,28 @@ out:
unlock_debug ();
}
bool __stdcall
debug_mark_closed (const char *func, int ln, HANDLE h, const char *name, BOOL force)
static void __stdcall
delete_handle (handle_list *hl)
{
handle_list *hnuke = hl->next;
hl->next = hl->next->next;
if (hnuke->allocated)
free (hnuke);
else
memset (hnuke, 0, sizeof (*hnuke));
}
void
debug_fixup_after_fork ()
{
handle_list *hl;
for (hl = &starth; hl->next != NULL; hl = hl->next)
if (hl->next->clexec_pid)
delete_handle (hl);
}
static bool __stdcall
mark_closed (const char *func, int ln, HANDLE h, const char *name, BOOL force)
{
handle_list *hl;
lock_debug ();
@ -299,14 +330,7 @@ debug_mark_closed (const char *func, int ln, HANDLE h, const char *name, BOOL fo
}
if (hl)
{
handle_list *hnuke = hl->next;
hl->next = hl->next->next;
if (hnuke->allocated)
free (hnuke);
else
memset (hnuke, 0, sizeof (*hnuke));
}
delete_handle (hl);
unlock_debug ();
return TRUE;
@ -320,7 +344,7 @@ close_handle (const char *func, int ln, HANDLE h, const char *name, BOOL force)
BOOL ret;
lock_debug ();
if (!debug_mark_closed (func, ln, h, name, force))
if (!mark_closed (func, ln, h, name, force))
return FALSE;
ret = CloseHandle (h);

25
winsup/cygwin/debug.h
View File

@ -43,8 +43,8 @@ int __stdcall iscygthread ();
# define ProtectHandle1(h,n) do {} while (0)
# define ProtectHandle2(h,n) do {} while (0)
# define debug_init() do {} while (0)
# define MarkCLosed(h) do {} while (0)
# define debug_mark_closed(func, ln, h, name, force) (1)
# define setclexec_pid(h, b) do {} while (0)
# define debug_fixup_after_fork() do {} while (0)
#else
@ -59,23 +59,22 @@ int __stdcall iscygthread ();
close_handle (__PRETTY_FUNCTION__, __LINE__, (h), #n, TRUE)
# define ForceCloseHandle2(h,n) \
close_handle (__PRETTY_FUNCTION__, __LINE__, (h), n, TRUE)
# define MarkClosed(h) \
debug_mark_closed (__PRETTY_FUNCTION__, __LINE__, (h), #h, TRUE)
# define lock_pinfo_for_update(n) lpfu(__PRETTY_FUNCTION__, __LINE__, n)
# endif
# define ProtectHandle(h) add_handle (__PRETTY_FUNCTION__, __LINE__, (h), #h)
# define ProtectHandle1(h,n) add_handle (__PRETTY_FUNCTION__, __LINE__, (h), #n)
# define ProtectHandle2(h,n) add_handle (__PRETTY_FUNCTION__, __LINE__, (h), n)
# define ProtectHandle1(h, n) add_handle (__PRETTY_FUNCTION__, __LINE__, (h), #n)
# define ProtectHandle2(h, n) add_handle (__PRETTY_FUNCTION__, __LINE__, (h), n)
void debug_init ();
void __stdcall add_handle (const char *, int, HANDLE, const char *);
BOOL __stdcall close_handle (const char *, int, HANDLE, const char *, BOOL);
int __stdcall lpfu (const char *, int, DWORD timeout);
void __stdcall cygbench (const char *s);
extern int pinger;
void __stdcall add_handle (const char *, int, HANDLE, const char *)
__attribute__ ((regparm (3)));
BOOL __stdcall close_handle (const char *, int, HANDLE, const char *, BOOL)
__attribute__ ((regparm (3)));
void __stdcall cygbench (const char *s) __attribute__ ((regparm (1)));
extern "C" void console_printf (const char *fmt,...);
bool debug_mark_closed (const char *, int, HANDLE, const char *, BOOL);
void setclexec_pid (HANDLE, bool);
void debug_fixup_after_fork ();
extern int pinger;
#endif /*DEBUGGING*/
#endif /*_DEBUG_H_*/

7
winsup/cygwin/fhandler.cc
View File

@ -785,7 +785,7 @@ fhandler_base::lseek (off_t offset, int whence)
}
int
fhandler_base::close (void)
fhandler_base::close ()
{
int res = -1;
@ -1317,8 +1317,8 @@ out:
int
fhandler_disk_file::close ()
{
int res;
if ((res = this->fhandler_base::close ()) == 0)
int res = this->fhandler_base::close ();
if (!res)
cygwin_shared->delqueue.process_queue ();
return res;
}
@ -1545,6 +1545,7 @@ fhandler_base::set_inheritance (HANDLE &h, int not_inheriting, const char *namep
h = newh;
ProtectHandle2 (h, name);
}
setclexec_pid (h, not_inheriting);
#endif
}

4
winsup/cygwin/fhandler.h
View File

@ -400,8 +400,8 @@ public:
int get_socket () { return (int) get_handle(); }
fhandler_socket * is_socket () { return this; }
int saw_shutdown_read () const {return FHISSETF (SHUTRD);}
int saw_shutdown_write () const {return FHISSETF (SHUTWR);}
bool saw_shutdown_read () const {return FHISSETF (SHUTRD);}
bool saw_shutdown_write () const {return FHISSETF (SHUTWR);}
void set_shutdown_read () {FHSETF (SHUTRD);}
void set_shutdown_write () {FHSETF (SHUTWR);}

4
winsup/cygwin/fhandler_tty.cc
View File

@ -479,13 +479,13 @@ fhandler_tty_slave::open (const char *, int flags, mode_t)
__small_sprintf (buf, OUTPUT_DONE_EVENT, ttynum);
output_done_event = OpenEvent (EVENT_ALL_ACCESS, TRUE, buf);
if (!(output_mutex = get_ttyp ()->open_output_mutex (TRUE)))
if (!(output_mutex = get_ttyp ()->open_output_mutex ()))
{
termios_printf ("open output mutex failed, %E");
__seterrno ();
return 0;
}
if (!(input_mutex = get_ttyp ()->open_input_mutex (TRUE)))
if (!(input_mutex = get_ttyp ()->open_input_mutex ()))
{
termios_printf ("open input mutex failed, %E");
__seterrno ();

1
winsup/cygwin/fork.cc
View File

@ -276,6 +276,7 @@ fork_child (HANDLE& hParent, dll *&first_dll, bool& load_dlls)
MALLOC_CHECK;
debug_fixup_after_fork ();
pinfo_fixup_after_fork ();
cygheap->fdtab.fixup_after_fork (hParent);
signal_fixup_after_fork ();

12
winsup/cygwin/tty.cc
View File

@ -327,13 +327,13 @@ tty::init (void)
}
HANDLE
tty::get_event (const char *fmt, BOOL inherit, BOOL manual_reset)
tty::get_event (const char *fmt, BOOL manual_reset)
{
HANDLE hev;
char buf[40];
__small_sprintf (buf, fmt, ntty);
if (!(hev = CreateEvent (inherit ? &sec_all : &sec_all_nih, manual_reset, FALSE, buf)))
if (!(hev = CreateEvent (&sec_all, manual_reset, FALSE, buf)))
{
termios_printf ("couldn't create %s", buf);
set_errno (ENOENT); /* FIXME this can't be the right errno */
@ -406,15 +406,15 @@ tty::common_init (fhandler_pty_master *ptym)
}
else
{
if (!(ptym->output_done_event = get_event (OUTPUT_DONE_EVENT, FALSE)))
if (!(ptym->output_done_event = get_event (OUTPUT_DONE_EVENT)))
return FALSE;
if (!(ptym->ioctl_done_event = get_event (IOCTL_DONE_EVENT, FALSE)))
if (!(ptym->ioctl_done_event = get_event (IOCTL_DONE_EVENT)))
return FALSE;
if (!(ptym->ioctl_request_event = get_event (IOCTL_REQUEST_EVENT, FALSE)))
if (!(ptym->ioctl_request_event = get_event (IOCTL_REQUEST_EVENT)))
return FALSE;
}
if (!(ptym->input_available_event = get_event (INPUT_AVAILABLE_EVENT, FALSE, TRUE)))
if (!(ptym->input_available_event = get_event (INPUT_AVAILABLE_EVENT, TRUE)))
return FALSE;
char buf[40];

11
winsup/cygwin/tty.h
View File

@ -86,7 +86,8 @@ class fhandler_pty_master;
class tty: public tty_min
{
HANDLE get_event (const char *fmt, BOOL inherit, BOOL manual_reset = FALSE);
HANDLE get_event (const char *fmt, BOOL manual_reset = FALSE)
__attribute__ ((regparm (2)));
public:
HWND hwnd; /* Console window handle tty belongs to */
@ -107,17 +108,17 @@ public:
HWND gethwnd () {return hwnd;}
void sethwnd (HWND wnd) {hwnd = wnd;}
int make_pipes (fhandler_pty_master *ptym);
HANDLE open_output_mutex (BOOL inherit = FALSE)
HANDLE open_output_mutex ()
{
char buf[80];
__small_sprintf (buf, OUTPUT_MUTEX, ntty);
return OpenMutex (MUTEX_ALL_ACCESS, inherit, buf);
return OpenMutex (MUTEX_ALL_ACCESS, TRUE, buf);
}
HANDLE open_input_mutex (BOOL inherit = FALSE)
HANDLE open_input_mutex ()
{
char buf[80];
__small_sprintf (buf, INPUT_MUTEX, ntty);
return OpenMutex (MUTEX_ALL_ACCESS, inherit, buf);
return OpenMutex (MUTEX_ALL_ACCESS, TRUE, buf);
}
BOOL exists ()
{