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wxFileName::Get/SetTimes() finally seem to work under Windows

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git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@14827 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This commit is contained in:
Vadim Zeitlin
2002-03-27 23:17:41 +00:00
parent 12132b3789
commit 6dbb903bb9
4 changed files with 79 additions and 55 deletions
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99
src/common/filename.cpp
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@@ -135,23 +135,31 @@
class wxFileHandle
{
public:
wxFileHandle(const wxString& filename)
enum OpenMode
{
Read,
Write
};
wxFileHandle(const wxString& filename, OpenMode mode)
{
m_hFile = ::CreateFile
(
filename, // name
GENERIC_READ, // access mask
0, // no sharing
NULL, // no secutity attr
OPEN_EXISTING, // creation disposition
0, // no flags
NULL // no template file
filename, // name
mode == Read ? GENERIC_READ // access mask
: GENERIC_WRITE,
0, // no sharing
NULL, // no secutity attr
OPEN_EXISTING, // creation disposition
0, // no flags
NULL // no template file
);
if ( m_hFile == INVALID_HANDLE_VALUE )
{
wxLogSysError(_("Failed to open '%s' for reading"),
filename.c_str());
wxLogSysError(_("Failed to open '%s' for %s"),
filename.c_str(),
mode == Read ? _("reading") : _("writing"));
}
}
@@ -187,32 +195,45 @@ private:
// convert between wxDateTime and FILETIME which is a 64-bit value representing
// the number of 100-nanosecond intervals since January 1, 1601.
// the number of milliseconds between the Unix Epoch (January 1, 1970) and the
// FILETIME reference point (January 1, 1601)
static const wxLongLong FILETIME_EPOCH_OFFSET = wxLongLong(0xa97, 0x30b66800);
static void ConvertFileTimeToWx(wxDateTime *dt, const FILETIME &ft)
{
wxLongLong ll(ft.dwHighDateTime, ft.dwLowDateTime);
FILETIME ftLocal;
if ( !::FileTimeToLocalFileTime(&ft, &ftLocal) )
{
wxLogLastError(_T("FileTimeToLocalFileTime"));
}
// convert 100ns to ms
ll /= 10000;
SYSTEMTIME st;
if ( !::FileTimeToSystemTime(&ftLocal, &st) )
{
wxLogLastError(_T("FileTimeToSystemTime"));
}
// move it to our Epoch
ll -= FILETIME_EPOCH_OFFSET;
*dt = wxDateTime(ll);
dt->Set(st.wDay, wxDateTime::Month(st.wMonth - 1), st.wYear,
st.wHour, st.wMinute, st.wSecond, st.wMilliseconds);
}
static void ConvertWxToFileTime(FILETIME *ft, const wxDateTime& dt)
{
// do the reverse of ConvertFileTimeToWx()
wxLongLong ll = dt.GetValue();
ll += FILETIME_EPOCH_OFFSET;
ll *= 10000;
SYSTEMTIME st;
st.wDay = dt.GetDay();
st.wMonth = dt.GetMonth() + 1;
st.wYear = dt.GetYear();
st.wHour = dt.GetHour();
st.wMinute = dt.GetMinute();
st.wSecond = dt.GetSecond();
st.wMilliseconds = dt.GetMillisecond();
ft->dwHighDateTime = ll.GetHi();
ft->dwLowDateTime = ll.GetLo();
FILETIME ftLocal;
if ( !::SystemTimeToFileTime(&st, &ftLocal) )
{
wxLogLastError(_T("SystemTimeToFileTime"));
}
if ( !::LocalFileTimeToFileTime(&ftLocal, ft) )
{
wxLogLastError(_T("LocalFileTimeToFileTime"));
}
}
#endif // __WIN32__
@@ -1561,9 +1582,9 @@ void wxFileName::SplitPath(const wxString& fullpath,
// time functions
// ----------------------------------------------------------------------------
bool wxFileName::SetTimes(const wxDateTime *dtCreate,
const wxDateTime *dtAccess,
const wxDateTime *dtMod)
bool wxFileName::SetTimes(const wxDateTime *dtAccess,
const wxDateTime *dtMod,
const wxDateTime *dtCreate)
{
#if defined(__UNIX_LIKE__) || (defined(__DOS__) && defined(__WATCOMC__))
if ( !dtAccess && !dtMod )
@@ -1582,7 +1603,7 @@ bool wxFileName::SetTimes(const wxDateTime *dtCreate,
return TRUE;
}
#elif defined(__WIN32__)
wxFileHandle fh(GetFullPath());
wxFileHandle fh(GetFullPath(), wxFileHandle::Write);
if ( fh.IsOk() )
{
FILETIME ftAccess, ftCreate, ftWrite;
@@ -1626,13 +1647,13 @@ bool wxFileName::Touch()
#else // other platform
wxDateTime dtNow = wxDateTime::Now();
return SetTimes(NULL /* don't change create time */, &dtNow, &dtNow);
return SetTimes(&dtNow, &dtNow, NULL /* don't change create time */);
#endif // platforms
}
bool wxFileName::GetTimes(wxDateTime *dtAccess,
wxDateTime *dtMod,
wxDateTime *dtChange) const
wxDateTime *dtCreate) const
{
#if defined(__UNIX_LIKE__) || defined(__WXMAC__) || (defined(__DOS__) && defined(__WATCOMC__))
wxStructStat stBuf;
@@ -1642,13 +1663,13 @@ bool wxFileName::GetTimes(wxDateTime *dtAccess,
dtAccess->Set(stBuf.st_atime);
if ( dtMod )
dtMod->Set(stBuf.st_mtime);
if ( dtChange )
dtChange->Set(stBuf.st_ctime);
if ( dtCreate )
dtCreate->Set(stBuf.st_ctime);
return TRUE;
}
#elif defined(__WIN32__)
wxFileHandle fh(GetFullPath());
wxFileHandle fh(GetFullPath(), wxFileHandle::Read);
if ( fh.IsOk() )
{
FILETIME ftAccess, ftCreate, ftWrite;
@@ -1656,14 +1677,14 @@ bool wxFileName::GetTimes(wxDateTime *dtAccess,
if ( ::GetFileTime(fh,
dtMod ? &ftCreate : NULL,
dtAccess ? &ftAccess : NULL,
dtChange ? &ftWrite : NULL) )
dtCreate ? &ftWrite : NULL) )
{
if ( dtMod )
ConvertFileTimeToWx(dtMod, ftCreate);
if ( dtAccess )
ConvertFileTimeToWx(dtAccess, ftAccess);
if ( dtChange )
ConvertFileTimeToWx(dtChange, ftWrite);
if ( dtCreate )
ConvertFileTimeToWx(dtCreate, ftWrite);
return TRUE;
}