#include <io.h>
#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
+ #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 <windows.h> // for GetTempFileName
+ #include <windows.h> // for GetTempFileName
#elif (defined(__UNIX__) || defined(__GNUWIN32__))
#include <unistd.h>
#ifdef __GNUWIN32__
// Microsoft compiler loves underscores, feed them to it
#ifdef __VISUALC__
- // functions
- #define open _open
- #define close _close
- #define read _read
- #define write _write
- #define lseek _lseek
- #define fsync _commit
- #define access _access
- #define eof _eof
-
- // types
- #define stat _stat
-
- // constants
-
- #define O_RDONLY _O_RDONLY
- #define O_WRONLY _O_WRONLY
- #define O_RDWR _O_RDWR
- #define O_EXCL _O_EXCL
- #define O_CREAT _O_CREAT
- #define O_BINARY _O_BINARY
-
- #define S_IFDIR _S_IFDIR
- #define S_IFREG _S_IFREG
+ // functions
+ #define open _open
+ #define close _close
+ #define read _read
+ #define write _write
+ #define lseek _lseek
+ #define fsync _commit
+ #define access _access
+ #define eof _eof
+
+ // types
+ #define stat _stat
+
+ // constants
+
+ #define O_RDONLY _O_RDONLY
+ #define O_WRONLY _O_WRONLY
+ #define O_RDWR _O_RDWR
+ #define O_EXCL _O_EXCL
+ #define O_CREAT _O_CREAT
+ #define O_BINARY _O_BINARY
+
+ #define S_IFDIR _S_IFDIR
+ #define S_IFREG _S_IFREG
#else
- #define tell(fd) lseek(fd, 0, SEEK_CUR)
+ #define tell(fd) lseek(fd, 0, SEEK_CUR)
#endif // VC++
#if defined(__BORLANDC__) || defined(_MSC_VER)
- #define W_OK 2
- #define R_OK 4
+ #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)
+ #define O_BINARY (0)
#endif //__UNIX__
#ifdef __SALFORDC__
char gwxMacFileName3[ MAX_PATH ] ;
#endif
+// some broken compilers don't have 3rd argument in open() and creat()
+#ifdef __SALFORDC__
+ #define ACCESS(access)
+ #define stat _stat
+#else // normal compiler
+ #define ACCESS(access) , (access)
+#endif // Salford C
+
// ============================================================================
// implementation of wxFile
// ============================================================================
// ----------------------------------------------------------------------------
bool wxFile::Exists(const char *name)
{
-#ifdef __SALFORDC__
- struct _stat st;
-#else
- struct stat st;
-#endif
+ struct stat st;
- return !access(name, 0) && !stat((char*) name, &st) && (st.st_mode & S_IFREG);
+ return !access(name, 0) &&
+ !stat((char*) name, &st) &&
+ (st.st_mode & S_IFREG);
}
bool wxFile::Access(const char *name, OpenMode mode)
{
- int how = 0;
+ int how = 0;
- switch ( mode ) {
- case read:
- how = R_OK;
- break;
+ switch ( mode ) {
+ case read:
+ how = R_OK;
+ break;
- case write:
- how = W_OK;
- break;
+ case write:
+ how = W_OK;
+ break;
- default:
- wxFAIL_MSG("bad wxFile::Access mode parameter.");
- }
+ default:
+ wxFAIL_MSG("bad wxFile::Access mode parameter.");
+ }
- return access(name, how) == 0;
+ return access(name, how) == 0;
}
// ----------------------------------------------------------------------------
// ctors
wxFile::wxFile(const char *szFileName, OpenMode mode)
{
- m_fd = fd_invalid;
- m_error = FALSE;
+ m_fd = fd_invalid;
+ m_error = FALSE;
- Open(szFileName, mode);
+ Open(szFileName, mode);
}
// dtor
wxFile::~wxFile()
{
- Close();
+ Close();
}
// create the file, fail if it already exists and 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
-#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);
- return FALSE;
- }
- else {
- Attach(fd);
- return TRUE;
- }
+ // 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 = open(szFileName,
+ O_WRONLY | O_CREAT | (bOverwrite ? O_TRUNC : O_EXCL)
+ ACCESS(accessMode));
+
+ if ( fd == -1 ) {
+ wxLogSysError(_("can't create file '%s'"), szFileName);
+ return FALSE;
+ }
+ else {
+ Attach(fd);
+ return TRUE;
+ }
}
// open the file
bool wxFile::Open(const char *szFileName, OpenMode mode, int accessMode)
{
- int flags = O_BINARY;
+ int flags = O_BINARY;
- switch ( mode ) {
- case read:
- flags |= O_RDONLY;
- break;
+ switch ( mode ) {
+ case read:
+ flags |= O_RDONLY;
+ break;
- case write:
- flags |= O_WRONLY | O_CREAT | O_TRUNC;
- break;
+ case write:
+ flags |= O_WRONLY | O_CREAT | O_TRUNC;
+ break;
- case write_append:
- flags |= O_WRONLY | O_APPEND;
- break;
+ case write_append:
+ flags |= O_WRONLY | O_APPEND;
+ break;
- case read_write:
- flags |= O_RDWR;
- break;
- }
+ case read_write:
+ flags |= O_RDWR;
+ break;
+ }
-#ifdef __SALFORDC__
- int fd = open(szFileName, flags);
-#else
- int fd = open(szFileName, flags, accessMode);
-#endif
+ int fd = open(szFileName, flags ACCESS(accessMode));
- if ( fd == -1 ) {
- wxLogSysError(_("can't open file '%s'"), szFileName);
- return FALSE;
- }
- else {
- Attach(fd);
- return TRUE;
- }
+ if ( fd == -1 ) {
+ wxLogSysError(_("can't open file '%s'"), szFileName);
+ return FALSE;
+ }
+ else {
+ Attach(fd);
+ return TRUE;
+ }
}
// close
bool wxFile::Close()
{
- if ( IsOpened() ) {
- if ( close(m_fd) == -1 ) {
- wxLogSysError(_("can't close file descriptor %d"), m_fd);
- m_fd = fd_invalid;
- return FALSE;
+ if ( IsOpened() ) {
+ 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;
}
- else
- m_fd = fd_invalid;
- }
- return TRUE;
+ return TRUE;
}
// ----------------------------------------------------------------------------
// read
off_t wxFile::Read(void *pBuf, off_t nCount)
{
- wxCHECK( (pBuf != NULL) && IsOpened(), 0 );
+ wxCHECK( (pBuf != NULL) && IsOpened(), 0 );
#ifdef __MWERKS__
- int iRc = ::read(m_fd, (char*) pBuf, nCount);
+ int iRc = ::read(m_fd, (char*) pBuf, nCount);
#else
- int iRc = ::read(m_fd, pBuf, nCount);
+ int iRc = ::read(m_fd, pBuf, nCount);
#endif
- if ( iRc == -1 ) {
- wxLogSysError(_("can't read from file descriptor %d"), m_fd);
- return wxInvalidOffset;
- }
- else
- return (size_t)iRc;
+ if ( iRc == -1 ) {
+ wxLogSysError(_("can't read from file descriptor %d"), m_fd);
+ return wxInvalidOffset;
+ }
+ else
+ return (size_t)iRc;
}
// write
size_t wxFile::Write(const void *pBuf, size_t nCount)
{
- wxCHECK( (pBuf != NULL) && IsOpened(), 0 );
+ wxCHECK( (pBuf != NULL) && IsOpened(), 0 );
#ifdef __MWERKS__
- int iRc = ::write(m_fd, (const char*) pBuf, nCount);
+ int iRc = ::write(m_fd, (const char*) pBuf, nCount);
#else
- int iRc = ::write(m_fd, pBuf, nCount);
+ int iRc = ::write(m_fd, pBuf, nCount);
#endif
- if ( iRc == -1 ) {
- wxLogSysError(_("can't write to file descriptor %d"), m_fd);
- m_error = TRUE;
- return 0;
- }
- else
- return iRc;
+ if ( iRc == -1 ) {
+ wxLogSysError(_("can't write to file descriptor %d"), m_fd);
+ m_error = TRUE;
+ return 0;
+ }
+ else
+ return iRc;
}
// flush
bool wxFile::Flush()
{
- if ( IsOpened() ) {
- #if defined(__VISUALC__) || wxHAVE_FSYNC
+ if ( IsOpened() ) {
+#if defined(__VISUALC__) || wxHAVE_FSYNC
if ( fsync(m_fd) == -1 )
{
wxLogSysError(_("can't flush file descriptor %d"), m_fd);
return FALSE;
}
- #else // no fsync
+#else // no fsync
// just do nothing
- #endif // fsync
- }
+#endif // fsync
+ }
- return TRUE;
+ return TRUE;
}
// ----------------------------------------------------------------------------
// seek
off_t wxFile::Seek(off_t ofs, wxSeekMode mode)
{
- wxASSERT( IsOpened() );
-
- int flag = -1;
- switch ( mode ) {
- case wxFromStart:
- flag = SEEK_SET;
- break;
-
- case wxFromCurrent:
- flag = SEEK_CUR;
- break;
-
- case wxFromEnd:
- flag = SEEK_END;
- break;
-
- default:
- 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 wxInvalidOffset;
- }
- else
- return (off_t)iRc;
+ wxASSERT( IsOpened() );
+
+ int flag = -1;
+ switch ( mode ) {
+ case wxFromStart:
+ flag = SEEK_SET;
+ break;
+
+ case wxFromCurrent:
+ flag = SEEK_CUR;
+ break;
+
+ case wxFromEnd:
+ flag = SEEK_END;
+ break;
+
+ default:
+ 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 wxInvalidOffset;
+ }
+ else
+ return (off_t)iRc;
}
// get current off_t
off_t wxFile::Tell() const
{
- wxASSERT( IsOpened() );
-
- int iRc = tell(m_fd);
- if ( iRc == -1 ) {
- wxLogSysError(_("can't get seek position on file descriptor %d"), m_fd);
- return wxInvalidOffset;
- }
- else
- return (off_t)iRc;
+ wxASSERT( IsOpened() );
+
+ int iRc = tell(m_fd);
+ if ( iRc == -1 ) {
+ wxLogSysError(_("can't get seek position on file descriptor %d"), m_fd);
+ return wxInvalidOffset;
+ }
+ else
+ return (off_t)iRc;
}
// get current file length
off_t wxFile::Length() const
{
- wxASSERT( IsOpened() );
+ wxASSERT( IsOpened() );
- #ifdef __VISUALC__
+#ifdef __VISUALC__
int iRc = _filelength(m_fd);
- #else // !VC++
+#else // !VC++
int iRc = tell(m_fd);
if ( iRc != -1 ) {
- // @ have to use const_cast :-(
- int iLen = ((wxFile *)this)->SeekEnd();
- if ( iLen != -1 ) {
- // restore old position
- if ( ((wxFile *)this)->Seek(iRc) == -1 ) {
- // error
- iLen = -1;
+ // @ have to use const_cast :-(
+ int iLen = ((wxFile *)this)->SeekEnd();
+ if ( iLen != -1 ) {
+ // restore old position
+ if ( ((wxFile *)this)->Seek(iRc) == -1 ) {
+ // error
+ iLen = -1;
+ }
}
- }
- iRc = iLen;
+ iRc = iLen;
+ }
+#endif // VC++
+
+ if ( iRc == -1 ) {
+ wxLogSysError(_("can't find length of file on file descriptor %d"), m_fd);
+ return wxInvalidOffset;
}
- #endif // VC++
-
- if ( iRc == -1 ) {
- wxLogSysError(_("can't find length of file on file descriptor %d"), m_fd);
- return wxInvalidOffset;
- }
- else
- return (off_t)iRc;
+ else
+ return (off_t)iRc;
}
// is end of file reached?
bool wxFile::Eof() const
{
- wxASSERT( IsOpened() );
+ wxASSERT( IsOpened() );
- int iRc;
+ int iRc;
- #if defined(__UNIX__) || defined(__GNUWIN32__) || defined( __MWERKS__ ) || defined(__SALFORDC__)
+#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();
+ ofsMax = Length();
if ( ofsCur == wxInvalidOffset || ofsMax == wxInvalidOffset )
- iRc = -1;
+ iRc = -1;
else
- iRc = ofsCur == ofsMax;
- #else // Windows and "native" compiler
+ iRc = ofsCur == ofsMax;
+#else // Windows and "native" compiler
iRc = eof(m_fd);
- #endif // Windows/Unix
+#endif // Windows/Unix
- switch ( iRc ) {
- case 1:
- break;
+ switch ( iRc ) {
+ case 1:
+ break;
- case 0:
- return FALSE;
+ case 0:
+ return FALSE;
- case -1:
- wxLogSysError(_("can't determine if the end of file is reached on \
-descriptor %d"), m_fd);
- break;
+ case -1:
+ wxLogSysError(_("can't determine if the end of file is reached on \
+ descriptor %d"), m_fd);
+ break;
- default:
- wxFAIL_MSG(_("invalid eof() return value."));
- }
+ default:
+ wxFAIL_MSG(_("invalid eof() return value."));
+ }
- return TRUE;
+ return TRUE;
}
// ============================================================================
// ----------------------------------------------------------------------------
wxTempFile::wxTempFile(const wxString& strName)
{
- Open(strName);
+ Open(strName);
}
bool wxTempFile::Open(const wxString& strName)
{
- m_strName = strName;
+ m_strName = strName;
- // 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__ )
+ // 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
+#else // Windows
wxString strPath;
wxSplitPath(strName, &strPath, NULL, NULL);
if ( strPath.IsEmpty() )
- strPath = '.'; // GetTempFileName will fail if we give it empty string
+ 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)) )
+ // 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");
+ wxLogLastError("GetTempFileName");
m_strTemp.UngetWriteBuf();
- #endif // Windows/Unix
+#endif // Windows/Unix
+
+ int access = wxS_DEFAULT;
+#ifdef __UNIX__
+ // create the file with the same mode as the original one under Unix
+ struct stat st;
+ if ( stat(strName, &st) == 0 )
+ {
+ // this assumes that only lower bits of st_mode contain the access
+ // rights, but it's true for at least all Unices which have S_IXXXX()
+ // macros, so should not be less portable than using (not POSIX)
+ // S_IFREG &c
+ access = st.st_mode & 0777;
+ }
+ else
+ {
+ wxLogLastError("stat");
+ }
+
+ // we want to create the file with exactly the same access rights as the
+ // original one, so disable the user's umask for the moment
+ mode_t umaskOld = umask(0);
+#endif // Unix
+
+ bool ok = m_file.Open(m_strTemp, wxFile::write, access);
+
+#ifdef __UNIX__
+ // restore umask now that the file is created
+ (void)umask(umaskOld);
+#endif // Unix
- return m_file.Open(m_strTemp, wxFile::write);
+ return ok;
}
// ----------------------------------------------------------------------------
wxTempFile::~wxTempFile()
{
- if ( IsOpened() )
- Discard();
+ if ( IsOpened() )
+ Discard();
}
bool wxTempFile::Commit()
{
- m_file.Close();
+ m_file.Close();
- if ( wxFile::Exists(m_strName) && remove(m_strName) != 0 ) {
- wxLogSysError(_("can't remove file '%s'"), m_strName.c_str());
- return FALSE;
- }
+ if ( wxFile::Exists(m_strName) && remove(m_strName) != 0 ) {
+ 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());
- return FALSE;
- }
+ if ( rename(m_strTemp, m_strName) != 0 ) {
+ wxLogSysError(_("can't commit changes to file '%s'"), m_strName.c_str());
+ return FALSE;
+ }
- return TRUE;
+ return TRUE;
}
void wxTempFile::Discard()
{
- m_file.Close();
- if ( remove(m_strTemp) != 0 )
- wxLogSysError(_("can't remove temporary file '%s'"), m_strTemp.c_str());
+ m_file.Close();
+ if ( remove(m_strTemp) != 0 )
+ wxLogSysError(_("can't remove temporary file '%s'"), m_strTemp.c_str());
}
projects / wxWidgets.git / commitdiff
