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newlib-cygwin
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* syscalls.cc (unlink): Don't even try DELETE_ON_CLOSE technique on 

systems not supporting it.
This commit is contained in:
Corinna Vinschen 2003-10-08 09:17:08 +00:00
parent 56efe3a884
commit 99439385c6
2 changed files with 26 additions and 18 deletions
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5
winsup/cygwin/ChangeLog
View File

@ -1,3 +1,8 @@
2003-10-08 Corinna Vinschen <corinna@vinschen.de>
* syscalls.cc (unlink): Don't even try DELETE_ON_CLOSE technique on
systems not supporting it.
2003-10-02 Christopher Faylor <cgf@redhat.com>
* dcrt0.cc (dll_crt0_1): Call newlib __sinit routine to ensure that

39
winsup/cygwin/syscalls.cc
View File

@ -171,26 +171,29 @@ unlink (const char *ourname)
}
/* Attempt to use "delete on close" semantics to handle removing
a file which may be open. */
HANDLE h;
h = CreateFile (win32_name, 0, FILE_SHARE_READ, &sec_none_nih,
OPEN_EXISTING, FILE_FLAG_DELETE_ON_CLOSE, 0);
if (h != INVALID_HANDLE_VALUE)
if (wincap.has_delete_on_close ())
{
if (wincap.has_hard_links () && setattrs)
(void) SetFileAttributes (win32_name, (DWORD) win32_name);
BOOL res = CloseHandle (h);
syscall_printf ("%d = CloseHandle (%p)", res, h);
if (GetFileAttributes (win32_name) == INVALID_FILE_ATTRIBUTES
|| !win32_name.isremote ())
HANDLE h;
h = CreateFile (win32_name, 0, FILE_SHARE_READ, &sec_none_nih,
OPEN_EXISTING, FILE_FLAG_DELETE_ON_CLOSE, 0);
if (h != INVALID_HANDLE_VALUE)
{
syscall_printf ("CreateFile (FILE_FLAG_DELETE_ON_CLOSE) succeeded");
goto ok;
}
else
{
syscall_printf ("CreateFile (FILE_FLAG_DELETE_ON_CLOSE) failed");
if (setattrs)
SetFileAttributes (win32_name, (DWORD) win32_name & ~(FILE_ATTRIBUTE_READONLY | FILE_ATTRIBUTE_SYSTEM));
if (wincap.has_hard_links () && setattrs)
(void) SetFileAttributes (win32_name, (DWORD) win32_name);
BOOL res = CloseHandle (h);
syscall_printf ("%d = CloseHandle (%p)", res, h);
if (GetFileAttributes (win32_name) == INVALID_FILE_ATTRIBUTES
|| !win32_name.isremote ())
{
syscall_printf ("CreateFile (FILE_FLAG_DELETE_ON_CLOSE) succeeded");
goto ok;
}
else
{
syscall_printf ("CreateFile (FILE_FLAG_DELETE_ON_CLOSE) failed");
if (setattrs)
SetFileAttributes (win32_name, (DWORD) win32_name & ~(FILE_ATTRIBUTE_READONLY | FILE_ATTRIBUTE_SYSTEM));
}
}
}