// Created: 29/01/98
// RCS-ID: $Id$
// Copyright: (c) 1998 Vadim Zeitlin <zeitlin@dptmaths.ens-cachan.fr>
-// Licence: wxWindows license
+// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
// ----------------------------------------------------------------------------
#if wxUSE_FILE
// standard
-#if defined(__WXMSW__) && !defined(__GNUWIN32__) && !defined(__WXWINE__)
+#if defined(__WXMSW__) && !defined(__GNUWIN32__) && !defined(__WXMICROWIN__) && !defined(__WXWINCE__)
#include <io.h>
#ifndef __SALFORDC__
#define NOMCX
#endif
- #include <windows.h> // for GetTempFileName
+#elif defined(__WXMSW__) && defined(__WXWINCE__)
+ // TODO: what to include?
#elif (defined(__UNIX__) || defined(__GNUWIN32__))
#include <unistd.h>
+ #include <sys/stat.h>
#ifdef __GNUWIN32__
#include <windows.h>
#endif
+#elif defined(__DOS__)
+ #if defined(__WATCOMC__)
+ #include <io.h>
+ #elif defined(__DJGPP__)
+ #include <io.h>
+ #include <unistd.h>
+ #include <stdio.h>
+ #else
+ #error "Please specify the header with file functions declarations."
+ #endif
#elif (defined(__WXPM__))
#include <io.h>
- #define W_OK 2
- #define R_OK 4
#elif (defined(__WXSTUBS__))
// Have to ifdef this for different environments
#include <io.h>
#endif
char* mktemp( char * path ) { return path ;}
#include <stat.h>
- #define W_OK 2
- #define R_OK 4
#include <unistd.h>
#else
#error "Please specify the header with file functions declarations."
#endif //Win/UNIX
#include <stdio.h> // SEEK_xxx constants
+
+#ifndef __WXWINCE__
#include <fcntl.h> // O_RDONLY &c
+#endif
-#ifndef __MWERKS__
+#ifdef __WXWINCE__
+// Nothing
+#elif !defined(__MWERKS__)
+ #include <sys/types.h> // needed for stat
+ #include <sys/stat.h> // stat
+#elif defined(__MWERKS__) && ( defined(__WXMSW__) || defined(__MACH__) )
#include <sys/types.h> // needed for stat
#include <sys/stat.h> // stat
#endif
-#if defined(__BORLANDC__) || defined(_MSC_VER)
- #define W_OK 2
- #define R_OK 4
-#endif
+// Windows compilers don't have these constants
+#ifndef W_OK
+ enum
+ {
+ F_OK = 0, // test for existence
+ X_OK = 1, // execute permission
+ W_OK = 2, // write
+ R_OK = 4 // read
+ };
+#endif // W_OK
// there is no distinction between text and binary files under Unix, so define
// O_BINARY as 0 if the system headers don't do it already
#endif // Salford C
// wxWindows
-#include "wx/string.h"
-#include "wx/intl.h"
+#ifndef WX_PRECOMP
+ #include "wx/string.h"
+ #include "wx/intl.h"
+ #include "wx/log.h"
+#endif // !WX_PRECOMP
+
+#include "wx/filename.h"
#include "wx/file.h"
-#include "wx/log.h"
+#include "wx/filefn.h"
+
+#ifdef __WXMSW__
+ #include "wx/msw/mslu.h"
+#endif
+
+#ifdef __WXWINCE__
+ #include "wx/msw/private.h"
+#endif
// ============================================================================
// implementation of wxFile
// ----------------------------------------------------------------------------
// static functions
// ----------------------------------------------------------------------------
+
bool wxFile::Exists(const wxChar *name)
{
- wxStructStat st;
-#if wxUSE_UNICODE && wxMBFILES
- wxCharBuffer fname = wxConvFile.cWC2MB(name);
-
- return !wxAccess(fname, 0) &&
- !wxStat(wxMBSTRINGCAST fname, &st) &&
- (st.st_mode & S_IFREG);
-
-#else
- return !wxAccess(name, 0) &&
- !wxStat(name, &st) &&
- (st.st_mode & S_IFREG);
-#endif
+ return wxFileExists(name);
}
bool wxFile::Access(const wxChar *name, OpenMode mode)
{
- int how = 0;
+ int how;
+
+ switch ( mode )
+ {
+ default:
+ wxFAIL_MSG(wxT("bad wxFile::Access mode parameter."));
+ // fall through
- switch ( mode ) {
case read:
how = R_OK;
break;
how = W_OK;
break;
- default:
- wxFAIL_MSG(wxT("bad wxFile::Access mode parameter."));
+ case read_write:
+ how = R_OK | W_OK;
+ break;
}
- return wxAccess(wxFNCONV(name), how) == 0;
+#ifdef __WXWINCE__
+ // FIXME: use CreateFile with 0 access to query the file
+ return TRUE;
+#else
+ return wxAccess(name, how) == 0;
+#endif
}
// ----------------------------------------------------------------------------
{
// 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__)
- // 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 = creat( szFileName , accessMode);
+#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 = 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(wxFNCONV(szFileName),
- O_BINARY | O_WRONLY | O_CREAT |
- (bOverwrite ? O_TRUNC : O_EXCL)
- ACCESS(accessMode));
+ int fd = wxOpen( szFileName,
+ O_BINARY | O_WRONLY | O_CREAT |
+ (bOverwrite ? O_TRUNC : O_EXCL)
+ ACCESS(accessMode) );
+#endif
#endif
- if ( fd == -1 ) {
+ if ( fd == -1 )
+ {
wxLogSysError(_("can't create file '%s'"), szFileName);
return FALSE;
}
- else {
+ else
+ {
Attach(fd);
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 ) {
+ 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 )
+ {
case read:
flags |= O_RDONLY;
break;
flags |= O_WRONLY | O_CREAT | O_TRUNC;
break;
+ case write_excl:
+ flags |= O_WRONLY | O_CREAT | O_EXCL;
+ break;
+
case read_write:
flags |= O_RDWR;
break;
}
- int fd = wxOpen(wxFNCONV(szFileName), flags ACCESS(accessMode));
- if ( fd == -1 ) {
+ int fd = wxOpen( szFileName, flags ACCESS(accessMode));
+#endif
+ if ( fd == -1 )
+ {
wxLogSysError(_("can't open file '%s'"), szFileName);
return FALSE;
}
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;
{
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);
{
wxCHECK( (pBuf != NULL) && IsOpened(), 0 );
-#ifdef __MWERKS__
+#ifdef __WXWINCE__
+ DWORD bytesRead = 0;
+ int iRc = 0;
+ if (WriteFile((HANDLE) m_fd, pBuf, (DWORD) nCount, & bytesRead, NULL))
+ iRc = bytesRead;
+ else
+ iRc = -1;
+#elif defined(__MWERKS__)
#if __MSL__ >= 0x6000
int iRc = ::write(m_fd, (void*) pBuf, nCount);
#else
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);
{
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:
}
else
return (off_t)iRc;
+#endif
}
// get current off_t
{
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);
}
else
return (off_t)iRc;
+#endif
}
// get current file length
{
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++
}
else
return (off_t)iRc;
+#endif
}
// is end of file reached?
{
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(__UNIX__) || defined(__GNUWIN32__) || defined( __MWERKS__ ) || defined(__SALFORDC__)
+#if defined(__DOS__) || defined(__UNIX__) || defined(__GNUWIN32__) || defined( __MWERKS__ ) || defined(__SALFORDC__)
// @@ this doesn't work, of course, on unseekable file descriptors
off_t ofsCur = Tell(),
ofsMax = Length();
}
return TRUE;
+#endif
}
// ============================================================================
// ----------------------------------------------------------------------------
// construction
// ----------------------------------------------------------------------------
+
wxTempFile::wxTempFile(const wxString& strName)
{
Open(strName);
bool wxTempFile::Open(const wxString& 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__ )
- static const wxChar *szMktempSuffix = wxT("XXXXXX");
- m_strTemp << strName << szMktempSuffix;
- // can use the cast because length doesn't change
- mktemp(wxMBSTRINGCAST m_strTemp.mb_str());
-#elif defined(__WXPM__)
- // for now just create a file
- // future enhancements can be to set some extended attributes for file systems
- // OS/2 supports that have them (HPFS, FAT32) and security (HPFS386)
- static const wxChar *szMktempSuffix = wxT("XXX");
- m_strTemp << strName << szMktempSuffix;
- ::DosCreateDir(m_strTemp.GetWriteBuf(MAX_PATH), NULL);
-#else // Windows
- wxString strPath;
- wxSplitPath(strName, &strPath, NULL, NULL);
- if ( strPath.IsEmpty() )
- strPath = wxT('.'); // GetTempFileName will fail if we give it empty string
-#ifdef __WIN32__
- if ( !GetTempFileName(strPath, wxT("wx_"),0, m_strTemp.GetWriteBuf(MAX_PATH)) )
-#else
- // Not sure why MSVC++ 1.5 header defines first param as BYTE - bug?
- if ( !GetTempFileName((BYTE) (DWORD)(const wxChar*) strPath, wxT("wx_"),0, m_strTemp.GetWriteBuf(MAX_PATH)) )
-#endif
- wxLogLastError(wxT("GetTempFileName"));
- m_strTemp.UngetWriteBuf();
-#endif // Windows/Unix
+ // we must have an absolute filename because otherwise CreateTempFileName()
+ // would create the temp file in $TMP (i.e. the system standard location
+ // for the temp files) which might be on another volume/drive/mount and
+ // wxRename()ing it later to m_strName from Commit() would then fail
+ //
+ // with the absolute filename, the temp file is created in the same
+ // directory as this one which ensures that wxRename() may work later
+ wxFileName fn(strName);
+ if ( !fn.IsAbsolute() )
+ {
+ fn.Normalize(wxPATH_NORM_ABSOLUTE);
+ }
- int access = wxS_DEFAULT;
-#ifdef __UNIX__
- // create the file with the same mode as the original one under Unix
- mode_t umaskOld = 0; // just to suppress compiler warning
- bool changedUmask;
+ m_strName = fn.GetFullPath();
+
+ m_strTemp = wxFileName::CreateTempFileName(m_strName, &m_file);
+
+ if ( m_strTemp.empty() )
+ {
+ // CreateTempFileName() failed
+ return FALSE;
+ }
+#ifdef __UNIX__
+ // the temp file should have the same permissions as the original one
+ mode_t mode;
+
wxStructStat st;
- if ( stat(strName.fn_str(), &st) == 0 )
+ if ( stat( (const char*) m_strName.fn_str(), &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;
-
- // 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
- umaskOld = umask(0);
- changedUmask = TRUE;
+ mode = st.st_mode;
}
else
{
- // file probably didn't exist, just create with default mode _using_
- // user's umask (new files creation should respet umask)
- changedUmask = FALSE;
+ // file probably didn't exist, just give it the default mode _using_
+ // user's umask (new files creation should respect umask)
+ mode_t mask = umask(0777);
+ mode = 0666 & ~mask;
+ umask(mask);
}
-#endif // Unix
- bool ok = m_file.Open(m_strTemp, wxFile::write, access);
-
-#ifdef __UNIX__
- if ( changedUmask )
+ if ( chmod( (const char*) m_strTemp.fn_str(), mode) == -1 )
{
- // restore umask now that the file is created
- (void)umask(umaskOld);
+ wxLogSysError(_("Failed to set temporary file permissions"));
}
#endif // Unix
- return ok;
+ return TRUE;
}
// ----------------------------------------------------------------------------
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;
}
wxLogSysError(_("can't remove temporary file '%s'"), m_strTemp.c_str());
}
-#endif
+#endif // wxUSE_FILE
projects / wxWidgets.git / blobdiff