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 of
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 */
22 /* It would seem as though the FFI would have to be able to handle
23 * 64-bit values in order for the LARGEFILE && !MIPS case below to
24 * work, so can the comment above still be right? If FFI can only
25 * handle 64-bit aliens on some platforms, maybe there should be a
26 * distinct Lisp feature for 64-bit aliens support? -- RMK,
29 * In any case, since the types defined here exist to give sizes to
30 * potentially munged or faked data in our stat wrapper, these
31 * shouldn't be used for any purpose for which the real type can be
37 /* We use an extra layer of aliasing because Linux/MIPS struct stat
38 doesn't use dev_t. This type is not defined on the Lisp side. */
39 #ifdef LISP_FEATURE_MIPS
40 typedef unsigned long aliased_dev_t;
42 typedef dev_t aliased_dev_t;
45 #if defined(LISP_FEATURE_LARGEFILE) || defined(LISP_FEATURE_DARWIN)
46 typedef aliased_dev_t wst_dev_t;
47 typedef off_t wst_off_t;
49 typedef u32 wst_dev_t; /* since Linux dev_t can be 64 bits */
50 typedef u32 wst_off_t; /* since OpenBSD 2.8 st_size is 64 bits */
53 #ifdef LISP_FEATURE_OS_PROVIDES_BLKSIZE_T
54 typedef blksize_t wst_blksize_t;
55 typedef blkcnt_t wst_blkcnt_t;
57 typedef unsigned long wst_blksize_t;
58 typedef unsigned long wst_blkcnt_t;
61 #ifdef LISP_FEATURE_WIN32 /* Win32 lacks nlink_t, st_uid, st_gid.*/
62 typedef short wst_nlink_t;
63 typedef short wst_uid_t;
64 typedef short wst_gid_t;
66 typedef nlink_t wst_nlink_t;
67 typedef uid_t wst_uid_t;
68 typedef gid_t wst_gid_t;
71 /* a representation of stat(2) results which doesn't depend on CPU or OS */
73 /* KLUDGE: The verbose wrapped_st_ prefixes are to protect us from
74 * the C preprocessor as wielded by the fiends of OpenBSD, who do
76 * #define st_atime st_atimespec.tv_sec
77 * I remember when I was young and innocent, I read about how the
78 * C preprocessor isn't to be used to globally munge random
79 * lowercase symbols like this, because things like this could
80 * happen, and I nodded sagely. But now I know better.:-| This is
81 * another entry for Dan Barlow's ongoing episodic rant about C
82 * header files, I guess.. -- WHN 2001-05-10 */
83 wst_dev_t wrapped_st_dev; /* device */
84 ino_t wrapped_st_ino; /* inode */
85 mode_t wrapped_st_mode; /* protection */
86 wst_nlink_t wrapped_st_nlink; /* number of hard links */
87 wst_uid_t wrapped_st_uid; /* user ID of owner */
88 wst_gid_t wrapped_st_gid; /* group ID of owner */
89 wst_dev_t wrapped_st_rdev; /* device type (if inode device) */
90 wst_off_t wrapped_st_size; /* total size, in bytes */
91 wst_blksize_t wrapped_st_blksize; /* blocksize for filesystem I/O */
92 wst_blkcnt_t wrapped_st_blocks; /* number of blocks allocated */
93 time_t wrapped_st_atime; /* time_t of last access */
94 time_t wrapped_st_mtime; /* time_t of last modification */
95 time_t wrapped_st_ctime; /* time_t of last change */