#include "wx/filefn.h"
#include "wx/strconv.h"
-// ----------------------------------------------------------------------------
-// constants
-// ----------------------------------------------------------------------------
-
-// we redefine these constants here because S_IREAD &c are _not_ standard
-// however, we do assume that the values correspond to the Unix umask bits
-enum wxPosixPermissions
-{
- // standard Posix names for these permission flags:
- wxS_IRUSR = 00400,
- wxS_IWUSR = 00200,
- wxS_IXUSR = 00100,
-
- wxS_IRGRP = 00040,
- wxS_IWGRP = 00020,
- wxS_IXGRP = 00010,
-
- wxS_IROTH = 00004,
- wxS_IWOTH = 00002,
- wxS_IXOTH = 00001,
-
- // longer but more readable synonyms for the constants above:
- wxPOSIX_USER_READ = wxS_IRUSR,
- wxPOSIX_USER_WRITE = wxS_IWUSR,
- wxPOSIX_USER_EXECUTE = wxS_IXUSR,
-
- wxPOSIX_GROUP_READ = wxS_IRGRP,
- wxPOSIX_GROUP_WRITE = wxS_IWGRP,
- wxPOSIX_GROUP_EXECUTE = wxS_IXGRP,
-
- wxPOSIX_OTHERS_READ = wxS_IROTH,
- wxPOSIX_OTHERS_WRITE = wxS_IWOTH,
- wxPOSIX_OTHERS_EXECUTE = wxS_IXOTH,
-
- // default mode for the new files: allow reading/writing them to everybody but
- // the effective file mode will be set after anding this value with umask and
- // so won't include wxS_IW{GRP,OTH} for the default 022 umask value
- wxS_DEFAULT = (wxPOSIX_USER_READ | wxPOSIX_USER_WRITE | \
- wxPOSIX_GROUP_READ | wxPOSIX_GROUP_WRITE | \
- wxPOSIX_OTHERS_READ | wxPOSIX_OTHERS_WRITE),
-
- // default mode for the new directories (see wxFileName::Mkdir): allow
- // reading/writing/executing them to everybody, but just like wxS_DEFAULT
- // the effective directory mode will be set after anding this value with umask
- wxS_DIR_DEFAULT = (wxPOSIX_USER_READ | wxPOSIX_USER_WRITE | wxPOSIX_USER_EXECUTE | \
- wxPOSIX_GROUP_READ | wxPOSIX_GROUP_WRITE | wxPOSIX_GROUP_EXECUTE | \
- wxPOSIX_OTHERS_READ | wxPOSIX_OTHERS_WRITE | wxPOSIX_OTHERS_EXECUTE)
-};
-
// ----------------------------------------------------------------------------
// class wxFile: raw file IO
//
// ctors
// -----
// def ctor
- wxFile() { m_fd = fd_invalid; m_error = false; }
+ wxFile() { m_fd = fd_invalid; m_lasterror = 0; }
// open specified file (may fail, use IsOpened())
wxFile(const wxString& fileName, OpenMode mode = read);
// attach to (already opened) file
- wxFile(int lfd) { m_fd = lfd; m_error = false; }
+ wxFile(int lfd) { m_fd = lfd; m_lasterror = 0; }
// open/close
// create a new file (with the default value of bOverwrite, it will fail if
bool Close(); // Close is a NOP if not opened
// assign an existing file descriptor and get it back from wxFile object
- void Attach(int lfd) { Close(); m_fd = lfd; m_error = false; }
+ void Attach(int lfd) { Close(); m_fd = lfd; m_lasterror = 0; }
void Detach() { m_fd = fd_invalid; }
int fd() const { return m_fd; }
// is end of file reached?
bool Eof() const;
// has an error occurred?
- bool Error() const { return m_error; }
+ bool Error() const { return m_lasterror != 0; }
+ // get last errno
+ int GetLastError() const { return m_lasterror; }
+ // reset error state
+ void ClearLastError() { m_lasterror = 0; }
// type such as disk or pipe
wxFileKind GetKind() const { return wxGetFileKind(m_fd); }
+
// dtor closes the file if opened
~wxFile() { Close(); }
wxFile(const wxFile&);
wxFile& operator=(const wxFile&);
+ // Copy the value of errno into m_lasterror if rc == -1 and return true in
+ // this case (indicating that we've got an error). Otherwise return false.
+ //
+ // Notice that we use the possibly 64 bit wxFileOffset instead of int here so
+ // that it works for checking the result of functions such as tell() too.
+ bool CheckForError(wxFileOffset rc) const;
+
+
int m_fd; // file descriptor or INVALID_FD if not opened
- bool m_error; // error memory
+ int m_lasterror; // errno value of last error
};
// ----------------------------------------------------------------------------