X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/c801d85f158c4cba50b588807daabdcbd0ed3853..a8a4906b88393ceedc51bb22320db70b1031ecfb:/src/common/file.cpp diff --git a/src/common/file.cpp b/src/common/file.cpp index 6c6ae4acc5..2d3f2c1329 100644 --- a/src/common/file.cpp +++ b/src/common/file.cpp @@ -7,7 +7,7 @@ // Created: 29/01/98 // RCS-ID: $Id$ // Copyright: (c) 1998 Vadim Zeitlin -// Licence: wxWindows license +// Licence: wxWindows license ///////////////////////////////////////////////////////////////////////////// // ---------------------------------------------------------------------------- @@ -27,21 +27,65 @@ #endif // standard -#if defined(__WINDOWS__) && !defined(__GNUWIN32__) +#if defined(__WXMSW__) && !defined(__GNUWIN32__) #include + +#ifndef __SALFORDC__ + #define WIN32_LEAN_AND_MEAN + #define NOSERVICE + #define NOIME + #define NOATOM + #define NOGDI + #define NOGDICAPMASKS + #define NOMETAFILE + #define NOMINMAX + #define NOMSG + #define NOOPENFILE + #define NORASTEROPS + #define NOSCROLL + #define NOSOUND + #define NOSYSMETRICS + #define NOTEXTMETRIC + #define NOWH + #define NOCOMM + #define NOKANJI + #define NOCRYPT + #define NOMCX +#endif + + #include // for GetTempFileName #elif (defined(__UNIX__) || defined(__GNUWIN32__)) #include +#ifdef __GNUWIN32__ + #include +#endif +#elif (defined(__WXSTUBS__)) + // Have to ifdef this for different environments + #include +#elif (defined(__WXMAC__)) + int access( const char *path, int mode ) { return 0 ; } + char* mktemp( char * path ) { return path ;} + #include + #include + #define W_OK 2 + #define R_OK 4 #else - #error "Please specify the header with file functions declarations." + #error "Please specify the header with file functions declarations." #endif //Win/UNIX #include // SEEK_xxx constants #include // O_RDONLY &c + +#ifndef __MWERKS__ #include // needed for stat #include // stat +#endif // Microsoft compiler loves underscores, feed them to it #ifdef _MSC_VER + + #ifndef __MWERKS__ + // functions #define open _open #define close _close @@ -56,6 +100,7 @@ #define stat _stat // constants + #define O_RDONLY _O_RDONLY #define O_WRONLY _O_WRONLY #define O_RDWR _O_RDWR @@ -65,17 +110,29 @@ #define S_IFDIR _S_IFDIR #define S_IFREG _S_IFREG + + #endif - #define S_IREAD _S_IREAD - #define S_IWRITE _S_IWRITE + #define W_OK 2 + #define R_OK 4 #else #define tell(fd) lseek(fd, 0, SEEK_CUR) #endif //_MSC_VER +#ifdef __BORLANDC__ + #define W_OK 2 + #define R_OK 4 +#endif + // there is no distinction between text and binary files under Unix -#ifdef __UNIX__ - #define O_BINARY (0) -#endif //__UNIX__ +#ifdef __UNIX__ + #define O_BINARY (0) +#endif //__UNIX__ + + +#ifdef __SALFORDC__ +#include +#endif // wxWindows #include @@ -83,6 +140,9 @@ #include #include +#ifndef MAX_PATH +#define MAX_PATH 512 +#endif // ============================================================================ // implementation of wxFile @@ -91,10 +151,35 @@ // ---------------------------------------------------------------------------- // static functions // ---------------------------------------------------------------------------- -bool wxFile::Exists(const char *sz) -{ - struct stat st; - return !access(sz, 0) && !stat(sz, &st) && (st.st_mode & S_IFREG); +bool wxFile::Exists(const char *name) +{ +#ifdef __SALFORDC__ + struct _stat st; +#else + struct stat st; +#endif + + return !access(name, 0) && !stat((char*) name, &st) && (st.st_mode & S_IFREG); +} + +bool wxFile::Access(const char *name, OpenMode mode) +{ + int how = 0; + + switch ( mode ) { + case read: + how = R_OK; + break; + + case write: + how = W_OK; + break; + + default: + wxFAIL_MSG("bad wxFile::Access mode parameter."); + } + + return access(name, how) == 0; } // ---------------------------------------------------------------------------- @@ -105,6 +190,7 @@ bool wxFile::Exists(const char *sz) wxFile::wxFile(const char *szFileName, OpenMode mode) { m_fd = fd_invalid; + m_error = FALSE; Open(szFileName, mode); } @@ -116,15 +202,20 @@ wxFile::~wxFile() } // create the file, fail if it already exists and bOverwrite -bool wxFile::Create(const char *szFileName, bool bOverwrite) +bool wxFile::Create(const char *szFileName, bool bOverwrite, int accessMode) { // if bOverwrite we create a new file or truncate the existing one, // otherwise we only create the new file and fail if it already exists - int fd = bOverwrite ? creat(szFileName, 0) - : open(szFileName, O_CREAT | O_EXCL); +#ifdef __SALFORDC__ + int fd = open(szFileName, O_WRONLY | O_CREAT | + (bOverwrite ? O_TRUNC : O_EXCL)); +#else + int fd = open(szFileName, O_WRONLY | O_CREAT | + (bOverwrite ? O_TRUNC : O_EXCL), accessMode); +#endif if ( fd == -1 ) { - wxLogSysError("can't create file '%s'", szFileName); + wxLogSysError(_("can't create file '%s'"), szFileName); return FALSE; } else { @@ -134,28 +225,36 @@ bool wxFile::Create(const char *szFileName, bool bOverwrite) } // open the file -bool wxFile::Open(const char *szFileName, OpenMode mode) +bool wxFile::Open(const char *szFileName, OpenMode mode, int accessMode) { int flags = O_BINARY; switch ( mode ) { - case read: - flags |= O_RDONLY; + case read: + flags |= O_RDONLY; + break; + + case write: + flags |= O_WRONLY | O_CREAT | O_TRUNC; break; - case write: - flags |= O_WRONLY | O_CREAT; + case write_append: + flags |= O_WRONLY | O_APPEND; break; - case read_write: + case read_write: flags |= O_RDWR; break; } - int fd = open(szFileName, flags, S_IREAD | S_IWRITE); +#ifdef __SALFORDC__ + int fd = open(szFileName, flags); +#else + int fd = open(szFileName, flags, accessMode); +#endif if ( fd == -1 ) { - wxLogSysError("can't open file '%s'", szFileName); + wxLogSysError(_("can't open file '%s'"), szFileName); return FALSE; } else { @@ -165,14 +264,19 @@ bool wxFile::Open(const char *szFileName, OpenMode mode) } // close -void wxFile::Close() +bool wxFile::Close() { if ( IsOpened() ) { - if ( close(m_fd) == -1 ) - wxLogSysError("can't close file descriptor %d", m_fd); - - m_fd = fd_invalid; + if ( close(m_fd) == -1 ) { + wxLogSysError(_("can't close file descriptor %d"), m_fd); + m_fd = fd_invalid; + return FALSE; + } + else + m_fd = fd_invalid; } + + return TRUE; } // ---------------------------------------------------------------------------- @@ -182,41 +286,53 @@ void wxFile::Close() // read off_t wxFile::Read(void *pBuf, off_t nCount) { - wxCHECK_RET( (pBuf != NULL) && IsOpened(), 0 ); + wxCHECK( (pBuf != NULL) && IsOpened(), 0 ); +#ifdef __MWERKS__ + int iRc = ::read(m_fd, (char*) pBuf, nCount); +#else int iRc = ::read(m_fd, pBuf, nCount); +#endif if ( iRc == -1 ) { - wxLogSysError("can't read from file descriptor %d", m_fd); - return ofsInvalid; + wxLogSysError(_("can't read from file descriptor %d"), m_fd); + return wxInvalidOffset; } else - return (uint)iRc; + return (size_t)iRc; } // write -bool wxFile::Write(const void *pBuf, uint nCount) +size_t wxFile::Write(const void *pBuf, size_t nCount) { - wxCHECK_RET( (pBuf != NULL) && IsOpened(), 0 ); + wxCHECK( (pBuf != NULL) && IsOpened(), 0 ); +#ifdef __MWERKS__ + int iRc = ::write(m_fd, (const char*) pBuf, nCount); +#else int iRc = ::write(m_fd, pBuf, nCount); +#endif if ( iRc == -1 ) { - wxLogSysError("can't write to file descriptor %d", m_fd); - return FALSE; + wxLogSysError(_("can't write to file descriptor %d"), m_fd); + m_error = TRUE; + return 0; } else - return TRUE; + return iRc; } // flush bool wxFile::Flush() { if ( IsOpened() ) { - // ## fsync() is not ANSI (BSDish) -// if ( fsync(m_fd) == -1 ) { // TODO - if (TRUE) { - wxLogSysError("can't flush file descriptor %d", m_fd); - return FALSE; - } + #if defined(_MSC_VER) || wxHAVE_FSYNC + if ( fsync(m_fd) == -1 ) + { + wxLogSysError(_("can't flush file descriptor %d"), m_fd); + return FALSE; + } + #else // no fsync + // just do nothing + #endif // fsync } return TRUE; @@ -227,32 +343,32 @@ bool wxFile::Flush() // ---------------------------------------------------------------------------- // seek -off_t wxFile::Seek(off_t ofs, SeekMode mode) +off_t wxFile::Seek(off_t ofs, wxSeekMode mode) { wxASSERT( IsOpened() ); int flag = -1; switch ( mode ) { - case FromStart: + case wxFromStart: flag = SEEK_SET; break; - case FromCurrent: + case wxFromCurrent: flag = SEEK_CUR; break; - case FromEnd: + case wxFromEnd: flag = SEEK_END; break; default: - wxFAIL_MSG("unknown seek origin"); + wxFAIL_MSG(_("unknown seek origin")); } int iRc = lseek(m_fd, ofs, flag); if ( iRc == -1 ) { - wxLogSysError("can't seek on file descriptor %d", m_fd); - return ofsInvalid; + wxLogSysError(_("can't seek on file descriptor %d"), m_fd); + return wxInvalidOffset; } else return (off_t)iRc; @@ -265,8 +381,8 @@ off_t wxFile::Tell() const int iRc = tell(m_fd); if ( iRc == -1 ) { - wxLogSysError("can't get seek position on file descriptor %d", m_fd); - return ofsInvalid; + wxLogSysError(_("can't get seek position on file descriptor %d"), m_fd); + return wxInvalidOffset; } else return (off_t)iRc; @@ -277,12 +393,12 @@ off_t wxFile::Length() const { wxASSERT( IsOpened() ); - #ifdef _MSC_VER + #if defined( _MSC_VER ) && !defined( __MWERKS__ ) int iRc = _filelength(m_fd); #else int iRc = tell(m_fd); if ( iRc != -1 ) { - // # have to use const_cast :-( + // @ have to use const_cast :-( int iLen = ((wxFile *)this)->SeekEnd(); if ( iLen != -1 ) { // restore old position @@ -298,8 +414,8 @@ off_t wxFile::Length() const #endif //_MSC_VER if ( iRc == -1 ) { - wxLogSysError("can't find length of file on file descriptor %d", m_fd); - return ofsInvalid; + wxLogSysError(_("can't find length of file on file descriptor %d"), m_fd); + return wxInvalidOffset; } else return (off_t)iRc; @@ -310,21 +426,19 @@ bool wxFile::Eof() const { wxASSERT( IsOpened() ); - // TODO: no eof in GnuWin32 - -#ifdef __LINUX__ - - int iRc = Tell() == Length(); - -#else - -#if defined(__GNUWIN32__) - int iRc = -1; -#else - int iRc = eof(m_fd); -#endif + int iRc; -#endif + #if defined(__UNIX__) || defined(__GNUWIN32__) || defined( __MWERKS__ ) || defined(__SALFORDC__) + // @@ this doesn't work, of course, on unseekable file descriptors + off_t ofsCur = Tell(), + ofsMax = Length(); + if ( ofsCur == wxInvalidOffset || ofsMax == wxInvalidOffset ) + iRc = -1; + else + iRc = ofsCur == ofsMax; + #else // Windows and "native" compiler + iRc = eof(m_fd); + #endif // Windows/Unix switch ( iRc ) { case 1: @@ -334,12 +448,12 @@ bool wxFile::Eof() const return FALSE; case -1: - wxLogSysError("can't determine if the end of file is reached on " - "descriptor %d", m_fd); + wxLogSysError(_("can't determine if the end of file is reached on \ +descriptor %d"), m_fd); break; default: - wxFAIL_MSG("invalid eof() return value."); + wxFAIL_MSG(_("invalid eof() return value.")); } return TRUE; @@ -360,7 +474,30 @@ wxTempFile::wxTempFile(const wxString& strName) bool wxTempFile::Open(const wxString& strName) { m_strName = strName; - m_strTemp = tmpnam(NULL); + + // we want to create the file in the same directory as strName because + // otherwise rename() in Commit() might not work (if the files are on + // different partitions for example). Unfortunately, the only standard + // (POSIX) temp file creation function tmpnam() can't do it. + #if defined(__UNIX__) || defined(__WXSTUBS__)|| defined( __WXMAC__ ) + static const char *szMktempSuffix = "XXXXXX"; + m_strTemp << strName << szMktempSuffix; + mktemp((char *)m_strTemp.c_str()); // will do because length doesn't change + #else // Windows + wxString strPath; + wxSplitPath(strName, &strPath, NULL, NULL); + if ( strPath.IsEmpty() ) + strPath = '.'; // GetTempFileName will fail if we give it empty string +#ifdef __WIN32__ + if ( !GetTempFileName(strPath, "wx_",0, m_strTemp.GetWriteBuf(MAX_PATH)) ) +#else + // Not sure why MSVC++ 1.5 header defines first param as BYTE - bug? + if ( !GetTempFileName((BYTE) (const char*) strPath, "wx_",0, m_strTemp.GetWriteBuf(MAX_PATH)) ) +#endif + wxLogLastError("GetTempFileName"); + m_strTemp.UngetWriteBuf(); + #endif // Windows/Unix + return m_file.Open(m_strTemp, wxFile::write); } @@ -379,12 +516,12 @@ bool wxTempFile::Commit() m_file.Close(); if ( wxFile::Exists(m_strName) && remove(m_strName) != 0 ) { - wxLogSysError("can't remove file '%s'", m_strName.c_str()); + wxLogSysError(_("can't remove file '%s'"), m_strName.c_str()); return FALSE; } if ( rename(m_strTemp, m_strName) != 0 ) { - wxLogSysError("can't commit changes to file '%s'", m_strName.c_str()); + wxLogSysError(_("can't commit changes to file '%s'"), m_strName.c_str()); return FALSE; } @@ -395,5 +532,5 @@ void wxTempFile::Discard() { m_file.Close(); if ( remove(m_strTemp) != 0 ) - wxLogSysError("can't remove temporary file '%s'", m_strTemp.c_str()); + wxLogSysError(_("can't remove temporary file '%s'"), m_strTemp.c_str()); }