/////////////////////////////////////////////////////////////////////////////
-// Name: file.cpp
+// Name: src/common/file.cpp
// Purpose: wxFile - encapsulates low-level "file descriptor"
// wxTempFile
// Author: Vadim Zeitlin
// standard
#if defined(__WXMSW__) && !defined(__GNUWIN32__) && !defined(__WXMICROWIN__) && !defined(__WXWINCE__)
-#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
+#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
#elif defined(__WXMSW__) && defined(__WXWINCE__)
#include "wx/msw/missing.h"
char* mktemp( char * path ) { return path ;}
#include <stat.h>
#include <unistd.h>
+#elif defined(__WXPALMOS__)
+ #include "wx/palmos/missing.h"
#else
#error "Please specify the header with file functions declarations."
#endif //Win/UNIX
};
#endif // W_OK
-#ifdef __SALFORDC__
- #include <unix.h>
-#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
-
// wxWidgets
#ifndef WX_PRECOMP
#include "wx/string.h"
#include "wx/intl.h"
#include "wx/log.h"
+ #include "wx/crt.h"
#endif // !WX_PRECOMP
#include "wx/filename.h"
// static functions
// ----------------------------------------------------------------------------
-bool wxFile::Exists(const wxChar *name)
+bool wxFile::Exists(const wxString& name)
{
return wxFileExists(name);
}
-bool wxFile::Access(const wxChar *name, OpenMode mode)
+bool wxFile::Access(const wxString& name, OpenMode mode)
{
int how;
}
// create the file, fail if it already exists and bOverwrite
-bool wxFile::Create(const wxChar *szFileName, bool bOverwrite, int accessMode)
+bool wxFile::Create(const wxString& fileName, 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
-#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( szFileName , O_CREAT | (bOverwrite ? O_TRUNC : O_EXCL), access);
- int fd = creat( szFileName , accessMode);
-#else
- int fd = wxOpen( szFileName,
+ int fd = wxOpen( fileName,
O_BINARY | O_WRONLY | O_CREAT |
- (bOverwrite ? O_TRUNC : O_EXCL)
- ACCESS(accessMode) );
-#endif
+ (bOverwrite ? O_TRUNC : O_EXCL),
+ accessMode );
if ( fd == -1 )
{
- wxLogSysError(_("can't create file '%s'"), szFileName);
+ wxLogSysError(_("can't create file '%s'"), fileName);
return false;
}
}
// open the file
-bool wxFile::Open(const wxChar *szFileName, OpenMode mode, int accessMode)
+bool wxFile::Open(const wxString& fileName, OpenMode mode, int accessMode)
{
int flags = O_BINARY;
break;
case write_append:
- if ( wxFile::Exists(szFileName) )
+ if ( wxFile::Exists(fileName) )
{
flags |= O_WRONLY | O_APPEND;
break;
accessMode &= wxS_IRUSR | wxS_IWUSR;
#endif // __WINDOWS__
- int fd = wxOpen( szFileName, flags ACCESS(accessMode));
+ int fd = wxOpen( fileName, flags, accessMode);
if ( fd == -1 )
{
- wxLogSysError(_("can't open file '%s'"), szFileName);
+ wxLogSysError(_("can't open file '%s'"), fileName);
return false;
}
if ( !buf )
return false;
- const size_t size = strlen(buf); // FIXME: use buf.length() when available
+#if wxUSE_UNICODE
+ const size_t size = buf.length();
+#else
+ const size_t size = s.length();
+#endif
+
return Write(buf, size) == size;
}
// seek
wxFileOffset wxFile::Seek(wxFileOffset ofs, wxSeekMode mode)
{
- wxASSERT_MSG( IsOpened(), _T("can't seek on closed file") );
+ wxASSERT_MSG( IsOpened(), wxT("can't seek on closed file") );
wxCHECK_MSG( ofs != wxInvalidOffset || mode != wxFromStart,
wxInvalidOffset,
- _T("invalid absolute file offset") );
+ wxT("invalid absolute file offset") );
int origin;
switch ( mode ) {
default:
- wxFAIL_MSG(_("unknown seek origin"));
+ wxFAIL_MSG(wxT("unknown seek origin"));
case wxFromStart:
origin = SEEK_SET;
{
wxASSERT( IsOpened() );
+ // we use a special method for Linux systems where files in sysfs (i.e.
+ // those under /sys typically) return length of 4096 bytes even when
+ // they're much smaller -- this is a problem as it results in errors later
+ // when we try reading 4KB from them
+#ifdef __LINUX__
+ struct stat st;
+ if ( fstat(m_fd, &st) == 0 )
+ {
+ // returning 0 for the special files indicates to the caller that they
+ // are not seekable
+ return st.st_blocks ? st.st_size : 0;
+ }
+ //else: failed to stat, try the normal method
+#endif // __LINUX__
+
wxFileOffset iRc = Tell();
if ( iRc != wxInvalidOffset ) {
- // have to use const_cast :-(
- wxFileOffset iLen = ((wxFile *)this)->SeekEnd();
+ wxFileOffset iLen = const_cast<wxFile *>(this)->SeekEnd();
if ( iLen != wxInvalidOffset ) {
// restore old position
if ( ((wxFile *)this)->Seek(iRc) == wxInvalidOffset ) {
wxFileOffset iRc;
-#if defined(__DOS__) || defined(__UNIX__) || defined(__GNUWIN32__) || defined( __MWERKS__ ) || defined(__SALFORDC__)
+#if defined(__DOS__) || defined(__UNIX__) || defined(__GNUWIN32__) || defined( __MWERKS__ )
// @@ this doesn't work, of course, on unseekable file descriptors
wxFileOffset ofsCur = Tell(),
ofsMax = Length();
iRc = wxEof(m_fd);
#endif // Windows/Unix
- if ( iRc == 1)
- {}
- else if ( iRc == 0 )
+ if ( iRc == 0 )
return false;
- else if ( iRc == wxInvalidOffset )
+
+ if ( iRc == wxInvalidOffset )
+ {
wxLogSysError(_("can't determine if the end of file is reached on descriptor %d"), m_fd);
- else
- wxFAIL_MSG(_("invalid eof() return value."));
+ }
+ else if ( iRc != 1 )
+ {
+ wxFAIL_MSG(wxT("invalid eof() return value."));
+ }
return true;
}
{
m_file.Close();
if ( wxRemove(m_strTemp) != 0 )
+ {
wxLogSysError(_("can't remove temporary file '%s'"), m_strTemp.c_str());
+ }
}
#endif // wxUSE_FILE
projects / wxWidgets.git / blobdiff