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* fhandler.h (fhandler_base::ftruncate): Define new virtual method.

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(fhandler_disk_file::ftruncate): Ditto.
	* fhandler.cc (fhandler_base::ftruncate): New method.
	* fhandler_disk_file.cc (fhandler_disk_file::ftruncate): Ditto.
	* syscalls.cc (ftruncate64): Move functionality into fhandlers.
	Call fhandler method from here.
This commit is contained in:
Corinna Vinschen
2005-02-02 22:42:06 +00:00
parent 7823d9bb14
commit 3fd68a6a04
5 changed files with 77 additions and 34 deletions
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35
winsup/cygwin/syscalls.cc
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@@ -1737,37 +1737,12 @@ setmode (int fd, int mode)
extern "C" int
ftruncate64 (int fd, _off64_t length)
{
int res = -1, res_bug = 0;
if (length < 0)
set_errno (EINVAL);
int res = -1;
cygheap_fdget cfd (fd);
if (cfd >= 0)
res = cfd->ftruncate (length);
else
{
cygheap_fdget cfd (fd);
if (cfd >= 0)
{
HANDLE h = cygheap->fdtab[fd]->get_handle ();
if (cfd->get_handle ())
{
/* remember curr file pointer location */
_off64_t prev_loc = cfd->lseek (0, SEEK_CUR);
cfd->lseek (length, SEEK_SET);
/* Fill the space with 0, if needed */
if (wincap.has_lseek_bug ())
res_bug = cfd->write (&res, 0);
if (!SetEndOfFile (h))
__seterrno ();
else
res = res_bug;
/* restore original file pointer location */
cfd->lseek (prev_loc, SEEK_SET);
}
}
}
set_errno (EBADF);
syscall_printf ("%d = ftruncate (%d, %D)", res, fd, length);
return res;
}