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* autoload.cc (NtSetInformationFile): Define.

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* cygwin.din: Export posix_fadvise and posix_fallocate.
	* fhandler.cc (fhandler_base::fadvise): New method.
	(fhandler_base::ftruncate): Add allow_truncate parameter.
	* fhandler.h (class fhandler_base): Add fadvise method.  Accomodate
	new parameter to ftruncate.
	(class fhandler_pipe): Add fadvise and ftruncate methods.
	(class fhandler_disk_file): Add fadvise method.  Accomodate new
	parameter to ftruncate.
	* fhandler_disk_file.cc (fhandler_disk_file::fadvise): New method.
	(fhandler_disk_file::ftruncate): Accomodate new allow_truncate
	parameter.  Set EOF using NtSetInformationFile on NT.
	* ntdll.h (struct _FILE_END_OF_FILE_INFORMATION): Define.
	(NtSetInformationFile): Declare.
	* pipe.cc (fhandler_pipe::fadvise): New method.
	(fhandler_pipe::ftruncate): Ditto.
	* syscalls.cc (posix_fadvise): New function.
	(posix_fallocate): Ditto.
	(ftruncate64): Accomodate second parameter to fhandler's ftruncate
	method.
	* include/fcntl.h: Add POSIX_FADV_* flags.  Add declarations of
	posix_fadvise and posix_fallocate.
	* include/cygwin/version.h: Bump API minor number.
This commit is contained in:
Corinna Vinschen
2006-08-07 19:29:14 +00:00
parent 76ddec15ab
commit 7636b58590
11 changed files with 213 additions and 33 deletions
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34
winsup/cygwin/syscalls.cc
View File

@@ -1752,13 +1752,45 @@ cygwin_setmode (int fd, int mode)
return res;
}
extern "C" int
posix_fadvise (int fd, _off64_t offset, _off64_t len, int advice)
{
int res = -1;
cygheap_fdget cfd (fd);
if (cfd >= 0)
res = cfd->fadvise (offset, len, advice);
else
set_errno (EBADF);
syscall_printf ("%d = posix_fadvice (%d, %D, %D, %d)",
res, fd, offset, len, advice);
return res;
}
extern "C" int
posix_fallocate (int fd, _off64_t offset, _off64_t len)
{
int res = -1;
if (offset < 0 || len == 0)
set_errno (EINVAL);
else
{
cygheap_fdget cfd (fd);
if (cfd >= 0)
res = cfd->ftruncate (offset + len, false);
else
set_errno (EBADF);
}
syscall_printf ("%d = posix_fallocate (%d, %D, %D)", res, fd, offset, len);
return res;
}
extern "C" int
ftruncate64 (int fd, _off64_t length)
{
int res = -1;
cygheap_fdget cfd (fd);
if (cfd >= 0)
res = cfd->ftruncate (length);
res = cfd->ftruncate (length, true);
else
set_errno (EBADF);
syscall_printf ("%d = ftruncate (%d, %D)", res, fd, length);