From: Vadim Zeitlin Date: Tue, 30 Oct 2001 02:41:30 +0000 (+0000) Subject: added and partly implemented the time functions for wxFileName X-Git-Url: https://git.saurik.com/wxWidgets.git/commitdiff_plain/951cd18031e1408ed2a70dae2972273f8ed9e994 added and partly implemented the time functions for wxFileName git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@12205 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775 --- diff --git a/include/wx/filename.h b/include/wx/filename.h index 06696bfdf2..58ca5ecc30 100644 --- a/include/wx/filename.h +++ b/include/wx/filename.h @@ -135,7 +135,7 @@ public: static wxFileName FileName(const wxString& file); static wxFileName DirName(const wxString& dir); - // test for existence + // file tests // is the filename valid at all? bool IsOk() const { return !m_dirs.IsEmpty() || !m_name.IsEmpty(); } @@ -148,11 +148,33 @@ public: bool DirExists(); static bool DirExists( const wxString &dir ); - // Well, get modification time with sec resolution - wxDateTime GetModificationTime(); - // VZ: also need: IsDirWritable(), IsFileExecutable() &c (TODO) + // time functions + + // set the file creation and last access/mod times + // (any of the pointers may be NULL) + bool SetTimes(const wxDateTime *dtCreate, + const wxDateTime *dtAccess, + const wxDateTime *dtMod); + + // set the access and modification times to the current moment + bool Touch(); + + // return the last access, last modification and last change times + // (any of the pointers may be NULL) + bool GetTimes(wxDateTime *dtAccess, + wxDateTime *dtMod, + wxDateTime *dtChange) const; + + // convenience wrapper: get just the last mod time of the file + wxDateTime GetModificationTime() const + { + wxDateTime dtMod; + (void)GetTimes(NULL, &dtMod, NULL); + return dtMod; + } + // various file/dir operations // retrieve the value of the current working directory diff --git a/src/common/filename.cpp b/src/common/filename.cpp index d30a7f8ba1..34fafde83d 100644 --- a/src/common/filename.cpp +++ b/src/common/filename.cpp @@ -39,15 +39,97 @@ #include "wx/utils.h" #if wxUSE_DYNLIB_CLASS -#include "wx/dynlib.h" + #include "wx/dynlib.h" #endif // For GetShort/LongPathName #ifdef __WIN32__ -#include -#include "wx/msw/winundef.h" + #include + + #include "wx/msw/winundef.h" +#endif + +// utime() is POSIX so should normally be available on all Unices +#ifdef __UNIX_LIKE__ + #include + #include #endif +// ---------------------------------------------------------------------------- +// private classes +// ---------------------------------------------------------------------------- + +// small helper class which opens and closes the file - we use it just to get +// a file handle for the given file name to pass it to some Win32 API function +#ifdef __WIN32__ + +class wxFileHandle +{ +public: + wxFileHandle(const wxString& filename) + { + 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 + ); + + if ( m_hFile == INVALID_HANDLE_VALUE ) + { + wxLogSysError(_("Failed to open '%s' for reading"), + filename.c_str()); + } + } + + ~wxFileHandle() + { + if ( m_hFile != INVALID_HANDLE_VALUE ) + { + if ( !::CloseHandle(m_hFile) ) + { + wxLogSysError(_("Failed to close file handle")); + } + } + } + + // return TRUE only if the file could be opened successfully + bool IsOk() const { return m_hFile != INVALID_HANDLE_VALUE; } + + // get the handle + operator HANDLE() const { return m_hFile; } + +private: + HANDLE m_hFile; +}; + +#endif // __WIN32__ + +// ---------------------------------------------------------------------------- +// private functions +// ---------------------------------------------------------------------------- + +#ifdef __WIN32__ + +// convert between wxDateTime and FILETIME which is a 64-bit value representing +// the number of 100-nanosecond intervals since January 1, 1601. + +static void ConvertWxToFileTime(FILETIME *ft, const wxDateTime& dt) +{ + // TODO +} + +static void ConvertFileTimeToWx(wxDateTime *dt, const FILETIME &ft) +{ + // TODO +} + +#endif // __WIN32__ + // ============================================================================ // implementation // ============================================================================ @@ -152,13 +234,6 @@ bool wxFileName::DirExists( const wxString &dir ) return ::wxDirExists( dir ); } -wxDateTime wxFileName::GetModificationTime() -{ - wxDateTime ret( wxFileModificationTime( GetFullPath() ) ); - - return ret; -} - // ---------------------------------------------------------------------------- // CWD and HOME stuff // ---------------------------------------------------------------------------- @@ -814,3 +889,116 @@ void wxFileName::SplitPath(const wxString& fullpath, } } } + +// ---------------------------------------------------------------------------- +// time functions +// ---------------------------------------------------------------------------- + +bool wxFileName::SetTimes(const wxDateTime *dtCreate, + const wxDateTime *dtAccess, + const wxDateTime *dtMod) +{ +#if defined(__UNIX_LIKE__) + utimbuf utm; + utm.actime = dtAccess ? dtAccess : dtAccess->GetTicks(); + utm.modtime = dtMod ? dtMod : dtMod->GetTicks(); + if ( utime(GetFullPath(), &utm) == 0 ) + { + return TRUE; + } +#elif defined(__WIN32__) + wxFileHandle fh(GetFullPath()); + if ( fh.IsOk() ) + { + FILETIME ftAccess, ftCreate, ftWrite; + + if ( dtCreate ) + ConvertWxToFileTime(&ftCreate, *dtCreate); + if ( dtAccess ) + ConvertWxToFileTime(&ftAccess, *dtAccess); + if ( dtMod ) + ConvertWxToFileTime(&ftWrite, *dtMod); + + if ( ::SetFileTime(fh, + dtCreate ? &ftCreate : NULL, + dtAccess ? &ftAccess : NULL, + dtMod ? &ftWrite : NULL) ) + { + return TRUE; + } + } +#else // other platform +#endif // platforms + + wxLogSysError(_("Failed to modify file times for '%s'"), + GetFullPath().c_str()); + + return FALSE; +} + +bool wxFileName::Touch() +{ +#if defined(__UNIX_LIKE__) + // under Unix touching file is simple: just pass NULL to utime() + if ( utime(GetFullPath(), NULL) == 0 ) + { + return TRUE; + } + + wxLogSysError(_("Failed to touch the file '%s'"), GetFullPath().c_str()); + + return FALSE; +#else // other platform + wxDateTime dtNow = wxDateTime::Now(); + + return SetTimes(NULL /* don't change create time */, &dtNow, &dtNow); +#endif // platforms +} + +bool wxFileName::GetTimes(wxDateTime *dtAccess, + wxDateTime *dtMod, + wxDateTime *dtChange) const +{ +#if defined(__UNIX_LIKE__) + wxStructStat stBuf; + if ( wxStat(GetFullPath(), &stBuf) == 0 ) + { + if ( dtAccess ) + dtAccess->Set(stBuf.st_atime); + if ( dtMod ) + dtMod->Set(stBuf.st_mtime); + if ( dtChange ) + dtChange->Set(stBuf.st_ctime); + + return TRUE; + } +#elif defined(__WIN32__) + wxFileHandle fh(GetFullPath()); + if ( fh.IsOk() ) + { + FILETIME ftAccess, ftCreate, ftWrite; + + if ( ::GetFileTime(fh, + dtMod ? &ftCreate : NULL, + dtAccess ? &ftAccess : NULL, + dtChange ? &ftWrite : NULL) ) + { + if ( dtMod ) + ConvertFileTimeToWx(dtMod, ftCreate); + if ( dtAccess ) + ConvertFileTimeToWx(dtAccess, ftAccess); + if ( dtChange ) + ConvertFileTimeToWx(dtChange, ftWrite); + + return TRUE; + } + } +#else // other platform +#endif // platforms + + wxLogSysError(_("Failed to retrieve file times for '%s'"), + GetFullPath().c_str()); + + return FALSE; +} +