fixed Cygwin compilation (there's no _get_osfhandle)

[wxWidgets.git] / include / wx / file.h

diff --git a/include/wx/file.h b/include/wx/file.h
index d52ad5f423852d28abae15666d3edcb4dd2ee806..3382610c571f261dbf943c2b5391d91174bd9bf5 100644 (file)
--- a/include/wx/file.h
+++ b/include/wx/file.h
@@ -7,20 +7,19 @@
 // Created:     29/01/98
 // RCS-ID:      $Id$
 // Copyright:   (c) 1998 Vadim Zeitlin <zeitlin@dptmaths.ens-cachan.fr>
-// Licence:     wxWindows license
+// Licence:     wxWindows licence
 /////////////////////////////////////////////////////////////////////////////
 
 #ifndef _WX_FILEH__
 #define _WX_FILEH__
 
-#ifdef __GNUG__
+#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
 #pragma interface "file.h"
 #endif
 
-#ifndef WX_PRECOMP
-  #include  "wx/string.h"
-  #include  "wx/filefn.h"
-#endif
+#include  "wx/string.h"
+#include  "wx/filefn.h"
+#include  "wx/strconv.h"
 
 #if wxUSE_FILE
 
@@ -52,13 +51,14 @@
 // NB: for space efficiency this class has no virtual functions, including
 //     dtor which is _not_ virtual, so it shouldn't be used as a base class.
 // ----------------------------------------------------------------------------
-class WXDLLEXPORT wxFile
+
+class WXDLLIMPEXP_BASE wxFile
 {
 public:
   // more file constants
   // -------------------
     // opening mode
-  enum OpenMode { read, write, read_write, write_append };
+  enum OpenMode { read, write, read_write, write_append, write_excl };
     // standard values for file descriptor
   enum { fd_invalid = -1, fd_stdin, fd_stdout, fd_stderr };
 
@@ -66,40 +66,40 @@ public:
   // ----------------
     // check whether a regular file by this name exists
   static bool Exists(const wxChar *name);
-    // check whetther we can access the given file in given mode
+    // check whether we can access the given file in given mode
     // (only read and write make sense here)
   static bool Access(const wxChar *name, OpenMode mode);
 
   // ctors
   // -----
     // def ctor
-  wxFile() { m_fd = fd_invalid; }
+  wxFile() { m_fd = fd_invalid; m_error = false; }
     // open specified file (may fail, use IsOpened())
   wxFile(const wxChar *szFileName, OpenMode mode = read);
     // attach to (already opened) file
-  wxFile(int fd) { m_fd = fd; }
+  wxFile(int fd) { m_fd = fd; m_error = false; }
 
   // open/close
     // create a new file (with the default value of bOverwrite, it will fail if
     // the file already exists, otherwise it will overwrite it and succeed)
-  bool Create(const wxChar *szFileName, bool bOverwrite = FALSE,
+  bool Create(const wxChar *szFileName, bool bOverwrite = false,
               int access = wxS_DEFAULT);
   bool Open(const wxChar *szFileName, OpenMode mode = read,
             int access = wxS_DEFAULT);
   bool Close();  // Close is a NOP if not opened
 
   // assign an existing file descriptor and get it back from wxFile object
-  void Attach(int fd) { Close(); m_fd = fd; }
+  void Attach(int fd) { Close(); m_fd = fd; m_error = false; }
   void Detach()       { m_fd = fd_invalid;  }
   int  fd() const { return m_fd; }
 
   // read/write (unbuffered)
-    // returns number of bytes read or ofsInvalid on error
-  off_t Read(void *pBuf, off_t nCount);
+    // returns number of bytes read or wxInvalidOffset on error
+  ssize_t Read(void *pBuf, size_t nCount);
     // returns the number of bytes written
   size_t Write(const void *pBuf, size_t nCount);
     // returns true on success
-  bool Write(const wxString& s, wxMBConv& conv = wxConvLibc)
+  bool Write(const wxString& s, wxMBConv& conv = wxConvUTF8)
   {
       const wxWX2MBbuf buf = s.mb_str(conv);
       size_t size = strlen(buf);
@@ -108,15 +108,15 @@ public:
     // flush data not yet written
   bool Flush();
 
-  // file pointer operations (return ofsInvalid on failure)
-    // move ptr ofs bytes related to start/current off_t/end of file
-  off_t Seek(off_t ofs, wxSeekMode mode = wxFromStart);
+  // file pointer operations (return wxInvalidOffset on failure)
+    // move ptr ofs bytes related to start/current offset/end of file
+  wxFileOffset Seek(wxFileOffset ofs, wxSeekMode mode = wxFromStart);
     // move ptr to ofs bytes before the end
-  off_t SeekEnd(off_t ofs = 0) { return Seek(ofs, wxFromEnd); }
-    // get current off_t
-  off_t Tell() const;
+  wxFileOffset SeekEnd(wxFileOffset ofs = 0) { return Seek(ofs, wxFromEnd); }
+    // get current offset
+  wxFileOffset Tell() const;
     // get current file length
-  off_t Length() const;
+  wxFileOffset Length() const;
 
   // simple accessors
     // is file opened?
@@ -125,6 +125,8 @@ public:
   bool Eof() const;
     // has an error occured?
   bool Error() const { return m_error; }
+    // type such as disk or pipe
+  wxFileKind GetKind() const { return wxGetFileKind(m_fd); }
 
   // dtor closes the file if opened
   ~wxFile() { Close(); }
@@ -147,7 +149,8 @@ private:
 // file (and close this one) or call Discard() to cancel the modification. If
 // you call neither of them, dtor will call Discard().
 // ----------------------------------------------------------------------------
-class WXDLLEXPORT wxTempFile
+
+class WXDLLIMPEXP_BASE wxTempFile
 {
 public:
   // ctors
@@ -163,8 +166,9 @@ public:
   bool IsOpened() const { return m_file.IsOpened(); }
 
   // I/O (both functions return true on success, false on failure)
-  bool Write(const void *p, size_t n) { return m_file.Write(p, n) != 0; }
-  bool Write(const wxString& str)   { return m_file.Write(str); }
+  bool Write(const void *p, size_t n) { return m_file.Write(p, n) == n; }
+  bool Write(const wxString& str, wxMBConv& conv = wxConvUTF8)
+    { return m_file.Write(str, conv); }
 
   // different ways to close the file
     // validate changes and delete the old file of name m_strName