2 * Data structures used in wrap.c in this directory, moved here from
3 * wrap.c in November 2007 so that
4 * src/tools-for-build/grovel-headers.c can grovel the sizes and
9 /* As of 0.6.12, the FFI can't handle 64-bit values. For now, we use
10 * these munged-to-32-bits values for might-be-64-bit slots of
11 * stat_wrapper as a workaround, so that at least we can still work
12 * when values are small.
14 * FIXME: But of course we should fix the FFI so that we can use the
15 * actual 64-bit values instead. In fact, we probably have by now
16 * (2003-10-03) on all working platforms except MIPS and HPPA; if some
17 * motivated spark would simply fix those, this hack could go away.
20 * Some motivated spark fixed MIPS. -- ths, 2005-10-06 */
21 /* It would seem as though the FFI would have to be able to handle
22 * 64-bit values in order for the LARGEFILE && !MIPS case below to
23 * work, so can the comment above still be right? If FFI can only
24 * handle 64-bit aliens on some platforms, maybe there should be a
25 * distinct Lisp feature for 64-bit aliens support? -- RMK,
31 #if defined(LISP_FEATURE_LARGEFILE) && !defined(LISP_FEATURE_MIPS)
32 typedef dev_t ffi_dev_t;
33 typedef off_t ffi_off_t;
34 #elif defined(LISP_FEATURE_MIPS)
35 typedef unsigned long ffi_dev_t; /* Linux/MIPS struct stat doesn't use dev_t */
36 typedef off_t ffi_off_t;
37 #elif defined(LISP_FEATURE_DARWIN)
38 typedef dev_t ffi_dev_t;
39 typedef off_t ffi_off_t;
41 typedef u32 ffi_dev_t; /* since Linux dev_t can be 64 bits */
42 typedef u32 ffi_off_t; /* since OpenBSD 2.8 st_size is 64 bits */
45 #ifdef LISP_FEATURE_OS_PROVIDES_BLKSIZE_T
46 typedef blksize_t ffi_blksize_t;
48 typedef unsigned long ffi_blksize_t;
51 /* a representation of stat(2) results which doesn't depend on CPU or OS */
53 /* KLUDGE: The verbose wrapped_st_ prefixes are to protect us from
54 * the C preprocessor as wielded by the fiends of OpenBSD, who do
56 * #define st_atime st_atimespec.tv_sec
57 * I remember when I was young and innocent, I read about how the
58 * C preprocessor isn't to be used to globally munge random
59 * lowercase symbols like this, because things like this could
60 * happen, and I nodded sagely. But now I know better.:-| This is
61 * another entry for Dan Barlow's ongoing episodic rant about C
62 * header files, I guess.. -- WHN 2001-05-10 */
63 ffi_dev_t wrapped_st_dev; /* device */
64 ino_t wrapped_st_ino; /* inode */
65 mode_t wrapped_st_mode; /* protection */
66 #ifndef LISP_FEATURE_WIN32
67 nlink_t wrapped_st_nlink; /* number of hard links */
68 uid_t wrapped_st_uid; /* user ID of owner */
69 gid_t wrapped_st_gid; /* group ID of owner */
71 short wrapped_st_nlink; /* Win32 doesn't have nlink_t */
72 short wrapped_st_uid; /* Win32 doesn't have st_uid */
73 short wrapped_st_gid; /* Win32 doesn't have st_gid */
75 ffi_dev_t wrapped_st_rdev; /* device type (if inode device) */
76 ffi_off_t wrapped_st_size; /* total size, in bytes */
77 ffi_blksize_t wrapped_st_blksize; /* blocksize for filesystem I/O */
78 unsigned long wrapped_st_blocks; /* number of blocks allocated */
79 time_t wrapped_st_atime; /* time_t of last access */
80 time_t wrapped_st_mtime; /* time_t of last modification */
81 time_t wrapped_st_ctime; /* time_t of last change */