X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/31907d03078c41ac09b2ff36267e980c57410f72..0d1f53ca16a9a794a7660561a5c5b4632f8675e0:/src/common/file.cpp?ds=sidebyside diff --git a/src/common/file.cpp b/src/common/file.cpp index 04fd887a93..d6926e9cc6 100644 --- a/src/common/file.cpp +++ b/src/common/file.cpp @@ -10,11 +10,16 @@ // Licence: wxWindows licence ///////////////////////////////////////////////////////////////////////////// +/* + TODO: remove all the WinCE ugliness from here, implement the wxOpen(), + wxSeek(), ... functions in a separate file for WinCE instead!!! + */ + // ---------------------------------------------------------------------------- // headers // ---------------------------------------------------------------------------- -#ifdef __GNUG__ +#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA) #pragma implementation "file.h" #endif @@ -28,7 +33,7 @@ #if wxUSE_FILE // standard -#if defined(__WXMSW__) && !defined(__GNUWIN32__) && !defined(__WXMICROWIN__) +#if defined(__WXMSW__) && !defined(__GNUWIN32__) && !defined(__WXMICROWIN__) && !defined(__WXWINCE__) #include #ifndef __SALFORDC__ @@ -54,11 +59,16 @@ #define NOMCX #endif +#elif defined(__WXMSW__) && defined(__WXWINCE__) + // TODO: what to include? +#elif (defined(__OS2__)) + #include #elif (defined(__UNIX__) || defined(__GNUWIN32__)) #include + #include #include #ifdef __GNUWIN32__ - #include + #include "wx/msw/wrapwin.h" #endif #elif defined(__DOS__) #if defined(__WATCOMC__) @@ -70,8 +80,6 @@ #else #error "Please specify the header with file functions declarations." #endif -#elif (defined(__WXPM__)) - #include #elif (defined(__WXSTUBS__)) // Have to ifdef this for different environments #include @@ -89,9 +97,14 @@ #endif //Win/UNIX #include // SEEK_xxx constants + +#ifndef __WXWINCE__ #include // O_RDONLY &c +#endif -#ifndef __MWERKS__ +#ifdef __WXWINCE__ +// Nothing +#elif !defined(__MWERKS__) #include // needed for stat #include // stat #elif defined(__MWERKS__) && ( defined(__WXMSW__) || defined(__MACH__) ) @@ -132,7 +145,7 @@ #define ACCESS(access) , (access) #endif // Salford C -// wxWindows +// wxWidgets #ifndef WX_PRECOMP #include "wx/string.h" #include "wx/intl.h" @@ -147,6 +160,10 @@ #include "wx/msw/mslu.h" #endif +#ifdef __WXWINCE__ + #include "wx/msw/private.h" +#endif + // ============================================================================ // implementation of wxFile // ============================================================================ @@ -183,7 +200,12 @@ bool wxFile::Access(const wxChar *name, OpenMode mode) break; } +#ifdef __WXWINCE__ + // FIXME: use CreateFile with 0 access to query the file + return true; +#else return wxAccess(name, how) == 0; +#endif } // ---------------------------------------------------------------------------- @@ -194,7 +216,7 @@ bool wxFile::Access(const wxChar *name, OpenMode mode) wxFile::wxFile(const wxChar *szFileName, OpenMode mode) { m_fd = fd_invalid; - m_error = FALSE; + m_error = false; Open(szFileName, mode); } @@ -206,29 +228,93 @@ bool wxFile::Create(const wxChar *szFileName, bool bOverwrite, int accessMode) // otherwise we only create the new file and fail if it already exists #if defined(__WXMAC__) && !defined(__UNIX__) && !wxUSE_UNICODE // Dominic Mazzoni [dmazzoni+@cs.cmu.edu] reports that open is still broken on the mac, so we replace - // int fd = open(wxUnix2MacFilename( szFileName ), O_CREAT | (bOverwrite ? O_TRUNC : O_EXCL), access); + // int fd = open( szFileName , O_CREAT | (bOverwrite ? O_TRUNC : O_EXCL), access); int fd = creat( szFileName , accessMode); +#else +#ifdef __WXWINCE__ + HANDLE fileHandle = ::CreateFile(szFileName, GENERIC_WRITE, 0, NULL, + bOverwrite ? CREATE_ALWAYS : CREATE_NEW, FILE_ATTRIBUTE_NORMAL, + 0); + int fd = 0; + if (fileHandle == INVALID_HANDLE_VALUE) + fd = (int) fileHandle; + else + fd = -1; #else int fd = wxOpen( szFileName, O_BINARY | O_WRONLY | O_CREAT | (bOverwrite ? O_TRUNC : O_EXCL) ACCESS(accessMode) ); +#endif #endif if ( fd == -1 ) { wxLogSysError(_("can't create file '%s'"), szFileName); - return FALSE; + return false; } else { Attach(fd); - return TRUE; + return true; } } // open the file bool wxFile::Open(const wxChar *szFileName, OpenMode mode, int accessMode) { +#ifdef __WXWINCE__ + DWORD access = 0; + DWORD shareMode = 0; + DWORD disposition = 0; + + int flags = O_BINARY; + + switch ( mode ) + { + case read: + access = GENERIC_READ; + shareMode = FILE_SHARE_READ|FILE_SHARE_WRITE; + disposition = OPEN_EXISTING; + break; + + case write_append: + if ( wxFile::Exists(szFileName) ) + { + access = GENERIC_READ|GENERIC_WRITE; + shareMode = FILE_SHARE_READ; + disposition = 0; + break; + } + //else: fall through as write_append is the same as write if the + // file doesn't exist + + case write: + access = GENERIC_WRITE; + shareMode = 0; + disposition = TRUNCATE_EXISTING; + break; + + case write_excl: + access = GENERIC_WRITE; + shareMode = 0; + disposition = TRUNCATE_EXISTING; + break; + + case read_write: + access = GENERIC_READ|GENERIC_WRITE; + shareMode = 0; + disposition = 0; + break; + } + + int fd = 0; + HANDLE fileHandle = ::CreateFile(szFileName, access, shareMode, NULL, + disposition, FILE_ATTRIBUTE_NORMAL, 0); + if (fileHandle == INVALID_HANDLE_VALUE) + fd = -1; + else + fd = (int) fileHandle; +#else int flags = O_BINARY; switch ( mode ) @@ -259,15 +345,23 @@ bool wxFile::Open(const wxChar *szFileName, OpenMode mode, int accessMode) break; } +#ifdef __WINDOWS__ + // only read/write bits for "all" are supported by this function under + // Windows, and VC++ 8 returns EINVAL if any other bits are used in + // accessMode, so clear them as they have at best no effect anyhow + accessMode &= wxS_IRUSR | wxS_IWUSR; +#endif // __WINDOWS__ + int fd = wxOpen( szFileName, flags ACCESS(accessMode)); +#endif if ( fd == -1 ) { wxLogSysError(_("can't open file '%s'"), szFileName); - return FALSE; + return false; } else { Attach(fd); - return TRUE; + return true; } } @@ -275,16 +369,21 @@ bool wxFile::Open(const wxChar *szFileName, OpenMode mode, int accessMode) bool wxFile::Close() { if ( IsOpened() ) { - if ( close(m_fd) == -1 ) { +#ifdef __WXWINCE__ + if (!CloseHandle((HANDLE) m_fd)) +#else + if ( close(m_fd) == -1 ) +#endif + { wxLogSysError(_("can't close file descriptor %d"), m_fd); m_fd = fd_invalid; - return FALSE; + return false; } else m_fd = fd_invalid; } - return TRUE; + return true; } // ---------------------------------------------------------------------------- @@ -296,7 +395,14 @@ off_t wxFile::Read(void *pBuf, off_t nCount) { wxCHECK( (pBuf != NULL) && IsOpened(), 0 ); -#ifdef __MWERKS__ +#ifdef __WXWINCE__ + DWORD bytesRead = 0; + int iRc = 0; + if (ReadFile((HANDLE) m_fd, pBuf, (DWORD) nCount, & bytesRead, NULL)) + iRc = bytesRead; + else + iRc = -1; +#elif defined(__MWERKS__) int iRc = ::read(m_fd, (char*) pBuf, nCount); #else int iRc = ::read(m_fd, pBuf, nCount); @@ -314,7 +420,14 @@ size_t wxFile::Write(const void *pBuf, size_t nCount) { wxCHECK( (pBuf != NULL) && IsOpened(), 0 ); -#ifdef __MWERKS__ +#ifdef __WXWINCE__ + DWORD bytesWritten = 0; + int iRc = 0; + if (WriteFile((HANDLE) m_fd, pBuf, (DWORD) nCount, & bytesWritten, NULL)) + iRc = bytesWritten; + else + iRc = -1; +#elif defined(__MWERKS__) #if __MSL__ >= 0x6000 int iRc = ::write(m_fd, (void*) pBuf, nCount); #else @@ -325,7 +438,7 @@ size_t wxFile::Write(const void *pBuf, size_t nCount) #endif if ( iRc == -1 ) { wxLogSysError(_("can't write to file descriptor %d"), m_fd); - m_error = TRUE; + m_error = true; return 0; } else @@ -336,18 +449,20 @@ size_t wxFile::Write(const void *pBuf, size_t nCount) bool wxFile::Flush() { if ( IsOpened() ) { -#if defined(__VISUALC__) || wxHAVE_FSYNC +#ifdef __WXWINCE__ + // Do nothing +#elif defined(__VISUALC__) || wxHAVE_FSYNC if ( wxFsync(m_fd) == -1 ) { wxLogSysError(_("can't flush file descriptor %d"), m_fd); - return FALSE; + return false; } #else // no fsync // just do nothing #endif // fsync } - return TRUE; + return true; } // ---------------------------------------------------------------------------- @@ -359,6 +474,34 @@ off_t wxFile::Seek(off_t ofs, wxSeekMode mode) { wxASSERT( IsOpened() ); +#ifdef __WXWINCE__ + int origin; + switch ( mode ) { + default: + wxFAIL_MSG(_("unknown seek origin")); + + case wxFromStart: + origin = FILE_BEGIN; + break; + + case wxFromCurrent: + origin = FILE_CURRENT; + break; + + case wxFromEnd: + origin = FILE_END; + break; + } + + DWORD res = SetFilePointer((HANDLE) m_fd, ofs, 0, origin) ; + if (res == 0xFFFFFFFF && GetLastError() != NO_ERROR) + { + wxLogSysError(_("can't seek on file descriptor %d"), m_fd); + return wxInvalidOffset; + } + else + return (off_t)res; +#else int origin; switch ( mode ) { default: @@ -384,6 +527,7 @@ off_t wxFile::Seek(off_t ofs, wxSeekMode mode) } else return (off_t)iRc; +#endif } // get current off_t @@ -391,6 +535,16 @@ off_t wxFile::Tell() const { wxASSERT( IsOpened() ); +#ifdef __WXWINCE__ + DWORD res = SetFilePointer((HANDLE) m_fd, 0, 0, FILE_CURRENT) ; + if (res == 0xFFFFFFFF && GetLastError() != NO_ERROR) + { + wxLogSysError(_("can't get seek position on file descriptor %d"), m_fd); + return wxInvalidOffset; + } + else + return (off_t)res; +#else int iRc = wxTell(m_fd); if ( iRc == -1 ) { wxLogSysError(_("can't get seek position on file descriptor %d"), m_fd); @@ -398,6 +552,7 @@ off_t wxFile::Tell() const } else return (off_t)iRc; +#endif } // get current file length @@ -405,6 +560,15 @@ off_t wxFile::Length() const { wxASSERT( IsOpened() ); +#ifdef __WXWINCE__ + DWORD off0 = SetFilePointer((HANDLE) m_fd, 0, 0, FILE_CURRENT); + DWORD off1 = SetFilePointer((HANDLE) m_fd, 0, 0, FILE_END); + off_t len = off1; + + // Restore position + SetFilePointer((HANDLE) m_fd, off0, 0, FILE_BEGIN); + return len; +#else #ifdef __VISUALC__ int iRc = _filelength(m_fd); #else // !VC++ @@ -430,6 +594,7 @@ off_t wxFile::Length() const } else return (off_t)iRc; +#endif } // is end of file reached? @@ -437,6 +602,17 @@ bool wxFile::Eof() const { wxASSERT( IsOpened() ); +#ifdef __WXWINCE__ + DWORD off0 = SetFilePointer((HANDLE) m_fd, 0, 0, FILE_CURRENT); + DWORD off1 = SetFilePointer((HANDLE) m_fd, 0, 0, FILE_END); + if (off0 == off1) + return true; + else + { + SetFilePointer((HANDLE) m_fd, off0, 0, FILE_BEGIN); + return false; + } +#else int iRc; #if defined(__DOS__) || defined(__UNIX__) || defined(__GNUWIN32__) || defined( __MWERKS__ ) || defined(__SALFORDC__) @@ -456,7 +632,7 @@ bool wxFile::Eof() const break; case 0: - return FALSE; + return false; case -1: wxLogSysError(_("can't determine if the end of file is reached on descriptor %d"), m_fd); @@ -466,7 +642,8 @@ bool wxFile::Eof() const wxFAIL_MSG(_("invalid eof() return value.")); } - return TRUE; + return true; +#endif } // ============================================================================ @@ -504,13 +681,13 @@ bool wxTempFile::Open(const wxString& strName) if ( m_strTemp.empty() ) { // CreateTempFileName() failed - return FALSE; + return false; } #ifdef __UNIX__ // the temp file should have the same permissions as the original one mode_t mode; - + wxStructStat st; if ( stat( (const char*) m_strName.fn_str(), &st) == 0 ) { @@ -527,11 +704,13 @@ bool wxTempFile::Open(const wxString& strName) if ( chmod( (const char*) m_strTemp.fn_str(), mode) == -1 ) { +#ifndef __OS2__ wxLogSysError(_("Failed to set temporary file permissions")); +#endif } #endif // Unix - return TRUE; + return true; } // ---------------------------------------------------------------------------- @@ -550,15 +729,15 @@ bool wxTempFile::Commit() if ( wxFile::Exists(m_strName) && wxRemove(m_strName) != 0 ) { wxLogSysError(_("can't remove file '%s'"), m_strName.c_str()); - return FALSE; + return false; } - if ( wxRename(m_strTemp, m_strName) != 0 ) { + if ( !wxRenameFile(m_strTemp, m_strName) ) { wxLogSysError(_("can't commit changes to file '%s'"), m_strName.c_str()); - return FALSE; + return false; } - return TRUE; + return true; } void wxTempFile::Discard()