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authorMichele Calgaro <michele.calgaro@yahoo.it>2024-07-10 18:56:16 +0900
committerMichele Calgaro <michele.calgaro@yahoo.it>2024-07-10 18:56:16 +0900
commit252a2ec8b0f0f9cf20c947737087b24a8185b588 (patch)
treeb48be8863db3bc1c223ac270a258b5c1124cb0e3 /src/tools/qfile_unix.cpp
parent87d29563e3ccdeb7fea0197e262e667ef323ff9c (diff)
downloadtqt3-252a2ec8b0f0f9cf20c947737087b24a8185b588.tar.gz
tqt3-252a2ec8b0f0f9cf20c947737087b24a8185b588.zip
Rename IO and network class nt* related files to equivalent tq*
Signed-off-by: Michele Calgaro <michele.calgaro@yahoo.it>
Diffstat (limited to 'src/tools/qfile_unix.cpp')
-rw-r--r--src/tools/qfile_unix.cpp734
1 files changed, 0 insertions, 734 deletions
diff --git a/src/tools/qfile_unix.cpp b/src/tools/qfile_unix.cpp
deleted file mode 100644
index f28899483..000000000
--- a/src/tools/qfile_unix.cpp
+++ /dev/null
@@ -1,734 +0,0 @@
-/****************************************************************************
-**
-** Implementation of TQFile class
-**
-** Created : 950628
-**
-** Copyright (C) 1992-2008 Trolltech ASA. All rights reserved.
-**
-** This file is part of the tools module of the TQt GUI Toolkit.
-**
-** This file may be used under the terms of the GNU General
-** Public License versions 2.0 or 3.0 as published by the Free
-** Software Foundation and appearing in the files LICENSE.GPL2
-** and LICENSE.GPL3 included in the packaging of this file.
-** Alternatively you may (at your option) use any later version
-** of the GNU General Public License if such license has been
-** publicly approved by Trolltech ASA (or its successors, if any)
-** and the KDE Free TQt Foundation.
-**
-** Please review the following information to ensure GNU General
-** Public Licensing requirements will be met:
-** http://trolltech.com/products/qt/licenses/licensing/opensource/.
-** If you are unsure which license is appropriate for your use, please
-** review the following information:
-** http://trolltech.com/products/qt/licenses/licensing/licensingoverview
-** or contact the sales department at sales@trolltech.com.
-**
-** This file may be used under the terms of the Q Public License as
-** defined by Trolltech ASA and appearing in the file LICENSE.TQPL
-** included in the packaging of this file. Licensees holding valid TQt
-** Commercial licenses may use this file in accordance with the TQt
-** Commercial License Agreement provided with the Software.
-**
-** This file is provided "AS IS" with NO WARRANTY OF ANY KIND,
-** INCLUDING THE WARRANTIES OF DESIGN, MERCHANTABILITY AND FITNESS FOR
-** A PARTICULAR PURPOSE. Trolltech reserves all rights not granted
-** herein.
-**
-**********************************************************************/
-
-#include "qplatformdefs.h"
-
-// POSIX Large File Support redefines open -> open64
-static inline int qt_open(const char *pathname, int flags, mode_t mode)
-{ return ::open(pathname, flags, mode); }
-#if defined(open)
-# undef open
-#endif
-
-// POSIX Large File Support redefines truncate -> truncate64
-#if defined(truncate)
-# undef truncate
-#endif
-
-#include "ntqfile.h"
-#include <errno.h>
-#include <limits.h>
-
-extern const char* qt_fileerr_read;
-
-bool qt_file_access( const TQString& fn, int t )
-{
- if ( fn.isEmpty() )
- return FALSE;
- return ::access( TQFile::encodeName(fn), t ) == 0;
-}
-
-/*!
- \overload
- Removes the file \a fileName.
- Returns TRUE if successful, otherwise FALSE.
-*/
-
-bool TQFile::remove( const TQString &fileName )
-{
- if ( fileName.isEmpty() ) {
-#if defined(QT_CHECK_NULL)
- tqWarning( "TQFile::remove: Empty or null file name" );
-#endif
- return FALSE;
- }
- return unlink( TQFile::encodeName(fileName) ) == 0;
-}
-
-#if defined(O_NONBLOCK)
-# define HAS_ASYNC_FILEMODE
-# define OPEN_ASYNC O_NONBLOCK
-#elif defined(O_NDELAY)
-# define HAS_ASYNC_FILEMODE
-# define OPEN_ASYNC O_NDELAY
-#endif
-
-/*!
- Opens the file specified by the file name currently set, using the
- mode \a m. Returns TRUE if successful, otherwise FALSE.
-
- \keyword IO_Raw
- \keyword IO_ReadOnly
- \keyword IO_WriteOnly
- \keyword IO_ReadWrite
- \keyword IO_Append
- \keyword IO_Truncate
- \keyword IO_Translate
-
- The mode parameter \a m must be a combination of the following flags:
- \table
- \header \i Flag \i Meaning
- \row \i IO_Raw
- \i Raw (non-buffered) file access.
- \row \i IO_ReadOnly
- \i Opens the file in read-only mode.
- \row \i IO_WriteOnly
- \i Opens the file in write-only mode. If this flag is used
- with another flag, e.g. \c IO_ReadOnly or \c IO_Raw or \c
- IO_Append, the file is \e not truncated; but if used on
- its own (or with \c IO_Truncate), the file is truncated.
- \row \i IO_ReadWrite
- \i Opens the file in read/write mode, equivalent to \c
- (IO_ReadOnly | IO_WriteOnly).
- \row \i IO_Append
- \i Opens the file in append mode. (You must actually use \c
- (IO_WriteOnly | IO_Append) to make the file writable and
- to go into append mode.) This mode is very useful when you
- want to write something to a log file. The file index is
- set to the end of the file. Note that the result is
- undefined if you position the file index manually using
- at() in append mode.
- \row \i IO_Truncate
- \i Truncates the file.
- \row \i IO_Translate
- \i Enables carriage returns and linefeed translation for text
- files under Windows.
- \endtable
-
- The raw access mode is best when I/O is block-operated using a 4KB
- block size or greater. Buffered access works better when reading
- small portions of data at a time.
-
- \warning When working with buffered files, data may not be written
- to the file at once. Call flush() to make sure that the data is
- really written.
-
- \warning If you have a buffered file opened for both reading and
- writing you must not perform an input operation immediately after
- an output operation or vice versa. You should always call flush()
- or a file positioning operation, e.g. at(), between input and
- output operations, otherwise the buffer may contain garbage.
-
- If the file does not exist and \c IO_WriteOnly or \c IO_ReadWrite
- is specified, it is created.
-
- Example:
- \code
- TQFile f1( "/tmp/data.bin" );
- f1.open( IO_Raw | IO_ReadWrite );
-
- TQFile f2( "readme.txt" );
- f2.open( IO_ReadOnly | IO_Translate );
-
- TQFile f3( "audit.log" );
- f3.open( IO_WriteOnly | IO_Append );
- \endcode
-
- \sa name(), close(), isOpen(), flush()
-*/
-
-bool TQFile::open( int m )
-{
- if ( isOpen() ) { // file already open
-#if defined(QT_CHECK_STATE)
- tqWarning( "TQFile::open: File (%s) already open", fn.latin1() );
-#endif
- return FALSE;
- }
- if ( fn.isEmpty() ) { // no file name defined
-#if defined(QT_CHECK_NULL)
- tqWarning( "TQFile::open: No file name specified" );
-#endif
- return FALSE;
- }
- init(); // reset params
- setMode( m );
- if ( !(isReadable() || isWritable()) ) {
-#if defined(QT_CHECK_RANGE)
- tqWarning( "TQFile::open: File access (%s) not specified", fn.latin1() );
-#endif
- return FALSE;
- }
- bool ok = TRUE;
- struct stat st;
- if ( isRaw() ) {
- int oflags = O_RDONLY;
- if ( isReadable() && isWritable() )
- oflags = O_RDWR;
- else if ( isWritable() )
- oflags = O_WRONLY;
- if ( flags() & IO_Append ) { // append to end of file?
- if ( flags() & IO_Truncate )
- oflags |= (O_CREAT | O_TRUNC);
- else
- oflags |= (O_APPEND | O_CREAT);
- setFlags( flags() | IO_WriteOnly ); // append implies write
- } else if ( isWritable() ) { // create/trunc if writable
- if ( flags() & IO_Truncate )
- oflags |= (O_CREAT | O_TRUNC);
- else
- oflags |= O_CREAT;
- }
-#if defined(HAS_TEXT_FILEMODE)
- if ( isTranslated() )
- oflags |= OPEN_TEXT;
- else
- oflags |= OPEN_BINARY;
-#endif
-#if defined(HAS_ASYNC_FILEMODE)
- if ( isAsynchronous() )
- oflags |= OPEN_ASYNC;
-#endif
- fd = qt_open( TQFile::encodeName(fn), oflags, 0666 );
-
- if ( fd != -1 ) { // open successful
- ::fstat( fd, &st ); // get the stat for later usage
- } else {
- ok = FALSE;
- }
- } else { // buffered file I/O
- TQCString perm;
- char perm2[4];
- bool try_create = FALSE;
- if ( flags() & IO_Append ) { // append to end of file?
- setFlags( flags() | IO_WriteOnly ); // append implies write
- perm = isReadable() ? "a+" : "a";
- } else {
- if ( isReadWrite() ) {
- if ( flags() & IO_Truncate ) {
- perm = "w+";
- } else {
- perm = "r+";
- try_create = TRUE; // try to create if not exists
- }
- } else if ( isReadable() ) {
- perm = "r";
- } else if ( isWritable() ) {
- perm = "w";
- }
- }
- qstrcpy( perm2, perm );
-#if defined(HAS_TEXT_FILEMODE)
- if ( isTranslated() )
- strcat( perm2, "t" );
- else
- strcat( perm2, "b" );
-#endif
- for (;;) { // At most twice
-
- fh = fopen( TQFile::encodeName(fn), perm2 );
-
- if ( !fh && try_create ) {
- perm2[0] = 'w'; // try "w+" instead of "r+"
- try_create = FALSE;
- } else {
- break;
- }
- }
- if ( fh ) {
- ::fstat( fileno(fh), &st ); // get the stat for later usage
- } else {
- ok = FALSE;
- }
- }
- if ( ok ) {
- setState( IO_Open );
- // on successful open the file stat was got; now test what type
- // of file we have
- if ( (st.st_mode & S_IFMT) != S_IFREG ) {
- // non-seekable
- setType( IO_Sequential );
- length = INT_MAX;
- ioIndex = 0;
- } else {
-#if defined(QT_LARGEFILE_SUPPORT)
- length = st.st_size > UINT_MAX ? UINT_MAX : (Offset)st.st_size;
-#else
- length = (Offset)st.st_size;
-#endif
- ioIndex = (flags() & IO_Append) == 0 ? 0 : length;
- if ( !(flags()&IO_Truncate) && length == 0 && isReadable() ) {
- // try if you can read from it (if you can, it's a sequential
- // device; e.g. a file in the /proc filesystem)
- int c = getch();
- if ( c != -1 ) {
- ungetch(c);
- setType( IO_Sequential );
- length = INT_MAX;
- ioIndex = 0;
- }
- resetStatus();
- }
- }
- } else {
- init();
- if ( errno == EMFILE ) // no more file handles/descrs
- setStatus( IO_ResourceError );
- else
- setStatus( IO_OpenError );
- setErrorStringErrno( errno );
- }
- return ok;
-}
-
-/*!
- \overload
- Opens a file in the mode \a m using an existing file handle \a f.
- Returns TRUE if successful, otherwise FALSE.
-
- Example:
- \code
- #include <stdio.h>
-
- void printError( const char* msg )
- {
- TQFile f;
- f.open( IO_WriteOnly, stderr );
- f.writeBlock( msg, tqstrlen(msg) ); // write to stderr
- f.close();
- }
- \endcode
-
- When a TQFile is opened using this function, close() does not actually
- close the file, only flushes it.
-
- \warning If \a f is \c stdin, \c stdout, \c stderr, you may not
- be able to seek. See TQIODevice::isSequentialAccess() for more
- information.
-
- \sa close()
-*/
-
-bool TQFile::open( int m, FILE *f )
-{
- if ( isOpen() ) {
-#if defined(QT_CHECK_RANGE)
- tqWarning( "TQFile::open: File (%s) already open", fn.latin1() );
-#endif
- return FALSE;
- }
- init();
- setMode( m &~IO_Raw );
- setState( IO_Open );
- fh = f;
- ext_f = TRUE;
- struct stat st;
- ::fstat( fileno(fh), &st );
-#if defined(QT_LARGEFILE_SUPPORT)
- off_t tmp = ftello( fh );
- ioIndex = tmp > UINT_MAX ? UINT_MAX : (Offset)tmp;
-#else
- ioIndex = (Offset)ftell( fh );
-#endif
- if ( (st.st_mode & S_IFMT) != S_IFREG || f == stdin ) { //stdin is non seekable
- // non-seekable
- setType( IO_Sequential );
- length = INT_MAX;
- ioIndex = 0;
- } else {
-#if defined(QT_LARGEFILE_SUPPORT)
- length = st.st_size > UINT_MAX ? UINT_MAX : (Offset)st.st_size;
-#else
- length = (Offset)st.st_size;
-#endif
- if ( !(flags()&IO_Truncate) && length == 0 && isReadable() ) {
- // try if you can read from it (if you can, it's a sequential
- // device; e.g. a file in the /proc filesystem)
- int c = getch();
- if ( c != -1 ) {
- ungetch(c);
- setType( IO_Sequential );
- length = INT_MAX;
- ioIndex = 0;
- }
- resetStatus();
- }
- }
- return TRUE;
-}
-
-/*!
- \overload
- Opens a file in the mode \a m using an existing file descriptor \a f.
- Returns TRUE if successful, otherwise FALSE.
-
- When a TQFile is opened using this function, close() does not actually
- close the file.
-
- The TQFile that is opened using this function, is automatically set to be in
- raw mode; this means that the file input/output functions are slow. If you
- run into performance issues, you should try to use one of the other open
- functions.
-
- \warning If \a f is one of 0 (stdin), 1 (stdout) or 2 (stderr), you may not
- be able to seek. size() is set to \c INT_MAX (in limits.h).
-
- \sa close()
-*/
-
-
-bool TQFile::open( int m, int f )
-{
- if ( isOpen() ) {
-#if defined(QT_CHECK_RANGE)
- tqWarning( "TQFile::open: File (%s) already open", fn.latin1() );
-#endif
- return FALSE;
- }
- init();
- setMode( m |IO_Raw );
- setState( IO_Open );
- fd = f;
- ext_f = TRUE;
- struct stat st;
- ::fstat( fd, &st );
-#if defined(QT_LARGEFILE_SUPPORT)
- off_t tmp = ::lseek(fd, 0, SEEK_CUR);
- ioIndex = tmp > UINT_MAX ? UINT_MAX : (Offset)tmp;
-#else
- ioIndex = (Offset)::lseek(fd, 0, SEEK_CUR);
-#endif
- if ( (st.st_mode & S_IFMT) != S_IFREG || f == 0 ) { // stdin is not seekable...
- // non-seekable
- setType( IO_Sequential );
- length = INT_MAX;
- ioIndex = 0;
- } else {
-#if defined(QT_LARGEFILE_SUPPORT)
- length = st.st_size > UINT_MAX ? UINT_MAX : (Offset)st.st_size;
-#else
- length = (Offset)st.st_size;
-#endif
- if ( length == 0 && isReadable() ) {
- // try if you can read from it (if you can, it's a sequential
- // device; e.g. a file in the /proc filesystem)
- int c = getch();
- if ( c != -1 ) {
- ungetch(c);
- setType( IO_Sequential );
- length = INT_MAX;
- ioIndex = 0;
- }
- resetStatus();
- }
- }
- return TRUE;
-}
-
-/*!
- Returns the file size.
- \sa at()
-*/
-
-TQIODevice::Offset TQFile::size() const
-{
- struct stat st;
- int ret = 0;
- if ( isOpen() ) {
- ret = ::fstat( fh ? fileno(fh) : fd, &st );
- } else {
- ret = ::stat( TQFile::encodeName(fn), &st );
- }
- if ( ret == -1 )
- return 0;
-#if defined(QT_LARGEFILE_SUPPORT)
- return (uint)st.st_size > UINT_MAX ? UINT_MAX : (Offset)st.st_size;
-#else
- return st.st_size;
-#endif
-}
-
-
-/*!
- \overload
-
- Sets the file index to \a pos. Returns TRUE if successful;
- otherwise returns FALSE.
-
- Example:
- \code
- TQFile f( "data.bin" );
- f.open( IO_ReadOnly ); // index set to 0
- f.at( 100 ); // set index to 100
- f.at( f.at()+50 ); // set index to 150
- f.at( f.size()-80 ); // set index to 80 before EOF
- f.close();
- \endcode
-
- Use \c at() without arguments to retrieve the file offset.
-
- \warning The result is undefined if the file was open()'ed using
- the \c IO_Append specifier.
-
- \sa size(), open()
-*/
-
-bool TQFile::at( Offset pos )
-{
- if ( !isOpen() ) {
-#if defined(QT_CHECK_STATE)
- tqWarning( "TQFile::at: File (%s) is not open", fn.latin1() );
-#endif
- return FALSE;
- }
- if ( isSequentialAccess() )
- return FALSE;
- bool ok;
- if ( isRaw() ) {
- off_t l = ::lseek( fd, pos, SEEK_SET );
- ok = ( l != -1 );
- pos = (Offset)l;
- } else { // buffered file
-#if defined(QT_LARGEFILE_SUPPORT)
- ok = ( ::fseeko(fh, pos, SEEK_SET) == 0 );
-#else
- ok = ( ::fseek(fh, pos, SEEK_SET) == 0 );
-#endif
- }
- if ( ok )
-#if defined(QT_LARGEFILE_SUPPORT)
- ioIndex = pos > UINT_MAX ? UINT_MAX : (Offset)pos;
-#else
- ioIndex = (Offset)pos;
-#endif
-#if defined(QT_CHECK_RANGE)
- else
- tqWarning( "TQFile::at: Cannot set file position %lu", pos );
-#endif
- return ok;
-}
-
-/*!
- \reimp
-
- \warning We have experienced problems with some C libraries when a buffered
- file is opened for both reading and writing. If a read operation takes place
- immediately after a write operation, the read buffer contains garbage data.
- Worse, the same garbage is written to the file. Calling flush() before
- readBlock() solved this problem.
-*/
-
-TQ_LONG TQFile::readBlock( char *p, TQ_ULONG len )
-{
- if ( !len ) // nothing to do
- return 0;
-
-#if defined(QT_CHECK_NULL)
- if ( !p )
- tqWarning( "TQFile::readBlock: Null pointer error" );
-#endif
-#if defined(QT_CHECK_STATE)
- if ( !isOpen() ) {
- tqWarning( "TQFile::readBlock: File (%s) not open", fn.latin1() );
- return -1;
- }
- if ( !isReadable() ) {
- tqWarning( "TQFile::readBlock: Read operation not permitted in file %s ", fn.latin1() );
- return -1;
- }
-#endif
- TQ_ULONG nread = 0; // number of bytes read
- if ( !ungetchBuffer.isEmpty() ) {
- // need to add these to the returned string.
- uint l = ungetchBuffer.length();
- while( nread < l ) {
- *p = ungetchBuffer.at( l - nread - 1 );
- p++;
- nread++;
- }
- ungetchBuffer.truncate( l - nread );
- }
-
- if ( nread < len ) {
- if ( isRaw() ) { // raw file
- nread += ::read( fd, p, len-nread );
- if ( len && nread <= 0 ) {
- nread = 0;
- setStatus(IO_ReadError);
- setErrorStringErrno( errno );
- }
- } else { // buffered file
- nread += fread( p, 1, len-nread, fh );
- if ( (uint)nread != len ) {
- if ( ferror( fh ) || nread==0 ) {
- setStatus(IO_ReadError);
- setErrorString( qt_fileerr_read );
- }
- }
- }
- }
- if ( !isSequentialAccess() )
- ioIndex += nread;
- return nread;
-}
-
-
-/*! \reimp
-
- Writes \a len bytes from \a p to the file and returns the number of
- bytes actually written.
-
- Returns -1 if a serious error occurred.
-
- \warning When working with buffered files, data may not be written
- to the file at once. Call flush() to make sure the data is really
- written.
-
- \sa readBlock()
-*/
-
-TQ_LONG TQFile::writeBlock( const char *p, TQ_ULONG len )
-{
- if ( !len ) // nothing to do
- return 0;
-
-#if defined(QT_CHECK_NULL)
- if ( p == 0 && len != 0 )
- tqWarning( "TQFile::writeBlock: Null pointer error" );
-#endif
-#if defined(QT_CHECK_STATE)
- if ( !isOpen() ) { // file not open
- tqWarning( "TQFile::writeBlock: File (%s) not open", fn.latin1() );
- return -1;
- }
- if ( !isWritable() ) { // writing not permitted
- tqWarning( "TQFile::writeBlock: Write operation not permitted in file %s ", fn.latin1() );
- return -1;
- }
-#endif
- TQ_ULONG nwritten; // number of bytes written
- if ( isRaw() ) // raw file
- nwritten = ::write( fd, (void *)p, len );
- else // buffered file
- nwritten = fwrite( p, 1, len, fh );
- if ( nwritten != len ) { // write error
- if ( errno == ENOSPC ) // disk is full
- setStatus( IO_ResourceError );
- else
- setStatus( IO_WriteError );
- setErrorStringErrno( errno );
- if ( !isSequentialAccess() ) {
- if ( isRaw() ) { // recalc file position
-#if defined(QT_LARGEFILE_SUPPORT)
- off_t tmp = ::lseek( fd, 0, SEEK_CUR );
- ioIndex = tmp > UINT_MAX ? UINT_MAX : (Offset)tmp;
-#else
- ioIndex = (Offset)::lseek( fd, 0, SEEK_CUR );
-#endif
- } else {
-#if defined(QT_LARGEFILE_SUPPORT)
- off_t tmp = (Offset)::fseeko( fh, 0, SEEK_CUR );
- ioIndex = tmp > UINT_MAX ? UINT_MAX : (Offset)tmp;
-#else
- ioIndex = (Offset)::fseek( fh, 0, SEEK_CUR );
-#endif
- }
- }
- } else {
- if ( !isSequentialAccess() )
- ioIndex += nwritten;
- }
- if ( ioIndex > length ) // update file length
- length = ioIndex;
- return nwritten;
-}
-
-/*!
- Returns the file handle of the file.
-
- This is a small positive integer, suitable for use with C library
- functions such as fdopen() and fcntl(). On systems that use file
- descriptors for sockets (ie. Unix systems, but not Windows) the handle
- can be used with TQSocketNotifier as well.
-
- If the file is not open or there is an error, handle() returns -1.
-
- \sa TQSocketNotifier
-*/
-
-int TQFile::handle() const
-{
- if ( !isOpen() )
- return -1;
- else if ( fh )
- return fileno( fh );
- else
- return fd;
-}
-
-/*!
- Closes an open file.
-
- The file is not closed if it was opened with an existing file handle.
- If the existing file handle is a \c FILE*, the file is flushed.
- If the existing file handle is an \c int file descriptor, nothing
- is done to the file.
-
- Some "write-behind" filesystems may report an unspecified error on
- closing the file. These errors only indicate that something may
- have gone wrong since the previous open(). In such a case status()
- reports IO_UnspecifiedError after close(), otherwise IO_Ok.
-
- \sa open(), flush()
-*/
-
-
-void TQFile::close()
-{
- bool ok = FALSE;
- if ( isOpen() ) { // file is not open
- if ( fh ) { // buffered file
- if ( ext_f )
- ok = fflush( fh ) != -1; // flush instead of closing
- else
- ok = fclose( fh ) != -1;
- } else { // raw file
- if ( ext_f )
- ok = TRUE; // cannot close
- else
- ok = ::close( fd ) != -1;
- }
- init(); // restore internal state
- }
- if (!ok) {
- setStatus( IO_UnspecifiedError );
- setErrorStringErrno( errno );
- }
-}