zig/lib/libc/mingw/secapi/_wctime64_s.c
Andrew Kelley 49d1a4c562 move lib dirs to lib subdir
also start prefering NtDll API. so far:
 * NtQueryInformationFile
 * NtClose

adds a performance workaround for windows unicode conversion. but that
should probably be removed before merging
2019-07-15 17:54:50 -04:00

57 lines
1.2 KiB
C

#include <windows.h>
#include <malloc.h>
#include <time.h>
#include <errno.h>
#include <msvcrt.h>
static errno_t __cdecl _int_wctime64_s (wchar_t *, size_t, const __time64_t *);
static errno_t __cdecl _stub (wchar_t *, size_t, const __time64_t *);
errno_t __cdecl (*__MINGW_IMP_SYMBOL(_wctime64_s))(wchar_t *, size_t, const __time64_t *) =
_stub;
static errno_t __cdecl
_stub (wchar_t *d, size_t dn, const __time64_t *pt)
{
errno_t __cdecl (*f)(wchar_t*,size_t, const __time64_t *) = __MINGW_IMP_SYMBOL(_wctime64_s);
if (f == _stub)
{
f = (errno_t __cdecl (*)(wchar_t *, size_t, const __time64_t *))
GetProcAddress (__mingw_get_msvcrt_handle (), "_wctime64_s");
if (!f)
f = _int_wctime64_s;
__MINGW_IMP_SYMBOL(_wctime64_s) = f;
}
return (*f)(d, dn, pt);
}
errno_t __cdecl
_wctime64_s (wchar_t *d, size_t dn, const __time64_t *pt)
{
return _stub (d, dn, pt);
}
static errno_t __cdecl
_int_wctime64_s (wchar_t *d, size_t dn, const __time64_t *pt)
{
struct tm ltm;
errno_t e;
if (!d || !dn)
{
errno = EINVAL;
return EINVAL;
}
d[0] = 0;
if (!pt)
{
errno = EINVAL;
return EINVAL;
}
if ((e = _localtime64_s (&ltm, pt)) != 0)
return e;
return _wasctime_s (d, dn, &ltm);
}