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Cygwin: convert sys_wcstombs/sys_mbstowcs wrapper to inline functions

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This should slightly speed up especially path conversions,
given there's one less function call rearranging all function
arguments in registers/stack (and less stack pressure).

For clarity, rename overloaded  sys_wcstombs to _sys_wcstombs
and sys_cp_mbstowcs to _sys_mbstowcs.

Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
This commit is contained in:
Corinna Vinschen
2020-07-10 10:29:33 +02:00
parent b3af1d5aa3
commit 462fcdb67f
4 changed files with 61 additions and 65 deletions
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60
winsup/cygwin/wchar.h
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@@ -45,22 +45,52 @@ extern wctomb_f __utf8_wctomb;
#ifdef __INSIDE_CYGWIN__
#ifdef __cplusplus
size_t __reg3 sys_wcstombs (char *dst, size_t len, const wchar_t * src,
size_t nwc = (size_t) -1);
size_t __reg3 sys_wcstombs_no_path (char *dst, size_t len,
const wchar_t * src,
size_t nwc = (size_t) -1);
size_t __reg3 sys_wcstombs_alloc (char **, int, const wchar_t *,
size_t = (size_t) -1);
size_t __reg3 sys_wcstombs_alloc_no_path (char **, int, const wchar_t *,
size_t = (size_t) -1);
extern size_t _sys_wcstombs (char *dst, size_t len, const wchar_t *src,
size_t nwc, bool is_path);
extern size_t _sys_wcstombs_alloc (char **dst_p, int type, const wchar_t *src,
size_t nwc, bool is_path);
static inline size_t
sys_wcstombs (char *dst, size_t len, const wchar_t * src,
size_t nwc = (size_t) -1)
{
return _sys_wcstombs (dst, len, src, nwc, true);
}
static inline size_t
sys_wcstombs_no_path (char *dst, size_t len, const wchar_t * src,
size_t nwc = (size_t) -1)
{
return _sys_wcstombs (dst, len, src, nwc, false);
}
static inline size_t
sys_wcstombs_alloc (char **dst_p, int type, const wchar_t *src,
size_t nwc = (size_t) -1)
{
return _sys_wcstombs_alloc (dst_p, type, src, nwc, true);
}
static inline size_t
sys_wcstombs_alloc_no_path (char **dst_p, int type, const wchar_t *src,
size_t nwc = (size_t) -1)
{
return _sys_wcstombs_alloc (dst_p, type, src, nwc, false);
}
size_t _sys_mbstowcs (mbtowc_p, wchar_t *, size_t, const char *,
size_t = (size_t) -1);
static inline size_t
sys_mbstowcs (wchar_t * dst, size_t dlen, const char *src,
size_t nms = (size_t) -1)
{
mbtowc_p f_mbtowc = (__MBTOWC == __ascii_mbtowc) ? __utf8_mbtowc : __MBTOWC;
return _sys_mbstowcs (f_mbtowc, dst, dlen, src, nms);
}
size_t sys_mbstowcs_alloc (wchar_t **, int, const char *, size_t = (size_t) -1);
size_t __reg3 sys_cp_mbstowcs (mbtowc_p, wchar_t *, size_t, const char *,
size_t = (size_t) -1);
size_t __reg3 sys_mbstowcs (wchar_t * dst, size_t dlen, const char *src,
size_t nms = (size_t) -1);
size_t __reg3 sys_mbstowcs_alloc (wchar_t **, int, const char *,
size_t = (size_t) -1);
#endif /* __cplusplus */
#endif /* __INSIDE_CYGWIN__ */