X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/b9daf00aac3d0a72e36b817a4ce98d2a7ca73cb0..3c0f8ed2509f8b6e806af093f1b5041c61649da1:/src/common/file.cpp

diff --git a/src/common/file.cpp b/src/common/file.cpp
index 07ad817056..23e0450283 100644
--- a/src/common/file.cpp
+++ b/src/common/file.cpp
@@ -14,10 +14,6 @@
 // headers
 // ----------------------------------------------------------------------------
 
-#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
-    #pragma implementation "file.h"
-#endif
-
 // For compilers that support precompilation, includes "wx.h".
 #include "wx/wxprec.h"
 
@@ -103,20 +99,10 @@
     };
 #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
-#if defined(__UNIX__) && !defined(O_BINARY)
-    #define   O_BINARY    (0)
-#endif  //__UNIX__
-
 #ifdef __SALFORDC__
     #include <unix.h>
 #endif
 
-#ifndef MAX_PATH
-    #define MAX_PATH 512
-#endif
-
 // some broken compilers don't have 3rd argument in open() and creat()
 #ifdef __SALFORDC__
     #define ACCESS(access)
@@ -130,12 +116,19 @@
     #include  "wx/string.h"
     #include  "wx/intl.h"
     #include  "wx/log.h"
+    #include "wx/crt.h"
 #endif // !WX_PRECOMP
 
 #include  "wx/filename.h"
 #include  "wx/file.h"
 #include  "wx/filefn.h"
 
+// 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
+#if defined(__UNIX__) && !defined(O_BINARY)
+    #define   O_BINARY    (0)
+#endif  //__UNIX__
+
 #ifdef __WXMSW__
     #include "wx/msw/mslu.h"
 #endif
@@ -144,6 +137,10 @@
     #include "wx/msw/private.h"
 #endif
 
+#ifndef MAX_PATH
+    #define MAX_PATH 512
+#endif
+
 // ============================================================================
 // implementation of wxFile
 // ============================================================================
@@ -152,12 +149,12 @@
 // 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;
 
@@ -188,43 +185,41 @@ bool wxFile::Access(const wxChar *name, OpenMode mode)
 // ----------------------------------------------------------------------------
 
 // ctors
-wxFile::wxFile(const wxChar *szFileName, OpenMode mode)
+wxFile::wxFile(const wxString& fileName, OpenMode mode)
 {
     m_fd = fd_invalid;
     m_error = false;
 
-    Open(szFileName, mode);
+    Open(fileName, mode);
 }
 
 // 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);
+    // int fd = open( fileName , O_CREAT | (bOverwrite ? O_TRUNC : O_EXCL), access);
+    int fd = creat( fileName , accessMode);
 #else
-    int fd = wxOpen( szFileName,
+    int fd = wxOpen( fileName,
                      O_BINARY | O_WRONLY | O_CREAT |
                      (bOverwrite ? O_TRUNC : O_EXCL)
                      ACCESS(accessMode) );
 #endif
     if ( fd == -1 )
     {
-        wxLogSysError(_("can't create file '%s'"), szFileName);
+        wxLogSysError(_("can't create file '%s'"), fileName);
         return false;
     }
-    else
-    {
-        Attach(fd);
-        return true;
-    }
+
+    Attach(fd);
+    return true;
 }
 
 // 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;
 
@@ -235,7 +230,7 @@ bool wxFile::Open(const wxChar *szFileName, OpenMode mode, int accessMode)
             break;
 
         case write_append:
-            if ( wxFile::Exists(szFileName) )
+            if ( wxFile::Exists(fileName) )
             {
                 flags |= O_WRONLY | O_APPEND;
                 break;
@@ -263,17 +258,16 @@ bool wxFile::Open(const wxChar *szFileName, OpenMode mode, int accessMode)
     accessMode &= wxS_IRUSR | wxS_IWUSR;
 #endif // __WINDOWS__
 
-    int fd = wxOpen( szFileName, flags ACCESS(accessMode));
+    int fd = wxOpen( fileName, flags ACCESS(accessMode));
 
     if ( fd == -1 )
     {
-        wxLogSysError(_("can't open file '%s'"), szFileName);
+        wxLogSysError(_("can't open file '%s'"), fileName);
         return false;
     }
-    else {
-        Attach(fd);
-        return true;
-    }
+
+    Attach(fd);
+    return true;
 }
 
 // close
@@ -298,51 +292,63 @@ bool wxFile::Close()
 // ----------------------------------------------------------------------------
 
 // read
-wxFileSize_t wxFile::Read(void *pBuf, wxFileSize_t nCount)
+ssize_t wxFile::Read(void *pBuf, size_t nCount)
 {
     wxCHECK( (pBuf != NULL) && IsOpened(), 0 );
 
-    wxFileSize_t iRc = wxRead(m_fd, pBuf, nCount);
+    ssize_t iRc = wxRead(m_fd, pBuf, nCount);
 
-    if ( iRc == wxInvalidOffset )
+    if ( iRc == -1 )
     {
         wxLogSysError(_("can't read from file descriptor %d"), m_fd);
+        return wxInvalidOffset;
     }
 
     return iRc;
 }
 
 // write
-wxFileSize_t wxFile::Write(const void *pBuf, wxFileSize_t nCount)
+size_t wxFile::Write(const void *pBuf, size_t nCount)
 {
     wxCHECK( (pBuf != NULL) && IsOpened(), 0 );
 
-    wxFileSize_t iRc = wxWrite(m_fd, pBuf, nCount);
+    ssize_t iRc = wxWrite(m_fd, pBuf, nCount);
 
-    if ( iRc == wxInvalidOffset )
+    if ( iRc == -1 )
     {
         wxLogSysError(_("can't write to file descriptor %d"), m_fd);
         m_error = true;
         iRc = 0;
     }
 
-    return (wxFileSize_t)iRc;
+    return iRc;
+}
+
+bool wxFile::Write(const wxString& s, const wxMBConv& conv)
+{
+  const wxWX2MBbuf buf = s.mb_str(conv);
+  if ( !buf )
+      return false;
+
+  const size_t size = strlen(buf); // FIXME: use buf.length() when available
+  return Write(buf, size) == size;
 }
 
 // flush
 bool wxFile::Flush()
 {
-    if ( IsOpened() ) {
-#if defined(__VISUALC__) || wxHAVE_FSYNC
+#ifdef HAVE_FSYNC
+    // fsync() only works on disk files and returns errors for pipes, don't
+    // call it then
+    if ( IsOpened() && GetKind() == wxFILE_KIND_DISK )
+    {
         if ( wxFsync(m_fd) == -1 )
         {
             wxLogSysError(_("can't flush file descriptor %d"), m_fd);
             return false;
         }
-#else // no fsync
-        // just do nothing
-#endif // fsync
     }
+#endif // HAVE_FSYNC
 
     return true;
 }
@@ -352,14 +358,17 @@ bool wxFile::Flush()
 // ----------------------------------------------------------------------------
 
 // seek
-wxFileSize_t wxFile::Seek(wxFileOffset ofs, wxSeekMode mode)
+wxFileOffset wxFile::Seek(wxFileOffset ofs, wxSeekMode mode)
 {
-    wxASSERT( IsOpened() );
+    wxASSERT_MSG( IsOpened(), _T("can't seek on closed file") );
+    wxCHECK_MSG( ofs != wxInvalidOffset || mode != wxFromStart,
+                 wxInvalidOffset,
+                 _T("invalid absolute file offset") );
 
     int origin;
     switch ( mode ) {
         default:
-            wxFAIL_MSG(_("unknown seek origin"));
+            wxFAIL_MSG(_T("unknown seek origin"));
 
         case wxFromStart:
             origin = SEEK_SET;
@@ -374,12 +383,7 @@ wxFileSize_t wxFile::Seek(wxFileOffset ofs, wxSeekMode mode)
             break;
     }
 
-    if (ofs == (wxFileOffset) wxInvalidOffset)
-    {
-        wxLogSysError(_("can't seek on file descriptor %d, large files support is not enabled."), m_fd);
-        return wxInvalidOffset;
-    }
-    wxFileSize_t iRc = wxSeek(m_fd, ofs, origin);
+    wxFileOffset iRc = wxSeek(m_fd, ofs, origin);
     if ( iRc == wxInvalidOffset )
     {
         wxLogSysError(_("can't seek on file descriptor %d"), m_fd);
@@ -389,11 +393,11 @@ wxFileSize_t wxFile::Seek(wxFileOffset ofs, wxSeekMode mode)
 }
 
 // get current file offset
-wxFileSize_t wxFile::Tell() const
+wxFileOffset wxFile::Tell() const
 {
     wxASSERT( IsOpened() );
 
-    wxFileSize_t iRc = wxTell(m_fd);
+    wxFileOffset iRc = wxTell(m_fd);
     if ( iRc == wxInvalidOffset )
     {
         wxLogSysError(_("can't get seek position on file descriptor %d"), m_fd);
@@ -403,14 +407,14 @@ wxFileSize_t wxFile::Tell() const
 }
 
 // get current file length
-wxFileSize_t wxFile::Length() const
+wxFileOffset wxFile::Length() const
 {
     wxASSERT( IsOpened() );
 
-    wxFileSize_t iRc = Tell();
+    wxFileOffset iRc = Tell();
     if ( iRc != wxInvalidOffset ) {
         // have to use const_cast :-(
-        wxFileSize_t iLen = ((wxFile *)this)->SeekEnd();
+        wxFileOffset iLen = ((wxFile *)this)->SeekEnd();
         if ( iLen != wxInvalidOffset ) {
             // restore old position
             if ( ((wxFile *)this)->Seek(iRc) == wxInvalidOffset ) {
@@ -435,11 +439,11 @@ bool wxFile::Eof() const
 {
     wxASSERT( IsOpened() );
 
-    wxFileSize_t iRc;
+    wxFileOffset iRc;
 
 #if defined(__DOS__) || defined(__UNIX__) || defined(__GNUWIN32__) || defined( __MWERKS__ ) || defined(__SALFORDC__)
     // @@ this doesn't work, of course, on unseekable file descriptors
-    wxFileSize_t ofsCur = Tell(),
+    wxFileOffset ofsCur = Tell(),
     ofsMax = Length();
     if ( ofsCur == wxInvalidOffset || ofsMax == wxInvalidOffset )
         iRc = wxInvalidOffset;
@@ -456,7 +460,7 @@ bool wxFile::Eof() const
     else 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."));
+        wxFAIL_MSG(_T("invalid eof() return value."));
 
     return true;
 }