X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/f6bcfd974ef26faf6f91a62cac09827e09463fd1..a49686b4c29e431ed24b14fae4d97140d447a149:/docs/latex/wx/file.tex

diff --git a/docs/latex/wx/file.tex b/docs/latex/wx/file.tex
index ac45262df2..4f8ac4bafc 100644
--- a/docs/latex/wx/file.tex
+++ b/docs/latex/wx/file.tex
@@ -1,3 +1,14 @@
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%% Name:        file.tex
+%% Purpose:     wxFile documentation
+%% Author:      Vadim Zeitlin
+%% Modified by:
+%% Created:     14.01.02 (extracted from file.tex)
+%% RCS-ID:      $Id$
+%% Copyright:   (c) Vadim Zeitlin
+%% License:     wxWindows license
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
 \section{\class{wxFile}}\label{wxfile}
 
 A wxFile performs raw file I/O. This is a very small class designed to
@@ -54,6 +65,8 @@ or test if it can be opened for writing with Access()}
 contents of the file is not erased and the file pointer is initially placed at the end of the file;
 can not be used with Access(). This is the same as {\bf wxFile::write} if the
 file doesn't exist.}
+\twocolitem{{\bf wxFile::write\_excl}}{Open the file securely for writing (Uses O\_EXCL | O\_CREAT).
+Will fail if the file already exists, else create and open it atomically.  Useful for opening temporary files without being vulnerable to race exploits.}
 \end{twocollist}
 
 Other constants defined elsewhere but used by wxFile functions are wxInvalidOffset which represents an
@@ -100,7 +113,7 @@ Associates the file with the given file descriptor, which has already been opene
 
 Destructor will close the file.
 
-NB: it is not virtual so you should use wxFile polymorphically.
+{\bf NB:} it is not virtual so you should not use wxFile polymorphically.
 
 \membersection{wxFile::Access}\label{wxfileaccess}
 
@@ -128,9 +141,9 @@ Closes the file.
 
 \membersection{wxFile::Create}\label{wxfilecreate}
 
-\func{bool}{Create}{\param{const char*}{ filename}, \param{bool}{ overwrite = FALSE}, \param{int }{access = wxS\_DEFAULT}}
+\func{bool}{Create}{\param{const char*}{ filename}, \param{bool}{ overwrite = false}, \param{int }{access = wxS\_DEFAULT}}
 
-Creates a file for writing. If the file already exists, setting {\bf overwrite} to TRUE
+Creates a file for writing. If the file already exists, setting {\bf overwrite} to true
 will ensure it is overwritten.
 
 \membersection{wxFile::Detach}\label{wxfiledetach}
@@ -138,7 +151,7 @@ will ensure it is overwritten.
 \func{void}{Detach}{\void}
 
 Get back a file descriptor from wxFile object - the caller is responsible for closing the file if this
-descriptor is opened. \helpref{IsOpened()}{wxfileisopened} will return FALSE after call to Detach().
+descriptor is opened. \helpref{IsOpened()}{wxfileisopened} will return false after call to Detach().
 
 \membersection{wxFile::fd}\label{wxfilefd}
 
@@ -150,12 +163,12 @@ Returns the file descriptor associated with the file.
 
 \constfunc{bool}{Eof}{\void}
 
-Returns TRUE if the end of the file has been reached.
+Returns true if the end of the file has been reached.
 
 Note that the behaviour of the file pointer based class 
 \helpref{wxFFile}{wxffile} is different as \helpref{wxFFile::Eof}{wxffileeof} 
-will return TRUE here only if an attempt has been made to read 
-{\it past} the last byte of the file, while wxFile::Eof() will return TRUE
+will return true here only if an attempt has been made to read 
+{\it past} the last byte of the file, while wxFile::Eof() will return true
 even before such attempt is made if the file pointer is at the last position
 in the file.
 
@@ -170,7 +183,7 @@ of using Eof() as this will not work for special files under Unix.
 
 \func{static bool}{Exists}{\param{const char*}{ filename}}
 
-Returns TRUE if the given name specifies an existing regular file (not a
+Returns true if the given name specifies an existing regular file (not a
 directory or a link)
 
 \membersection{wxFile::Flush}\label{wxfileflush}
@@ -187,7 +200,7 @@ due to a missing fsync function, which reduces the usefulness of this function
 
 \constfunc{bool}{IsOpened}{\void}
 
-Returns TRUE if the file has been opened.
+Returns true if the file has been opened.
 
 \membersection{wxFile::Length}\label{wxfilelength}
 
@@ -199,7 +212,7 @@ Returns the length of the file.
 
 \func{bool}{Open}{\param{const char*}{ filename}, \param{wxFile::OpenMode}{ mode = wxFile::read}}
 
-Opens the file, returning TRUE if successful.
+Opens the file, returning true if successful.
 
 \wxheading{Parameters}
 
@@ -278,202 +291,10 @@ the number of bytes actually written
 
 \membersection{wxFile::Write}\label{wxfilewrites}
 
-\func{bool}{Write}{\param{const wxString\& }{s}}
-
-Writes the contents of the string to the file, returns TRUE on success.
-
-\section{\class{wxFFile}}\label{wxffile}
-
-wxFFile implements buffered file I/O. This is a very small class designed to
-minimize the overhead of using it - in fact, there is hardly any overhead at
-all, but using it brings you automatic error checking and hides differences
-between platforms and compilers. It wraps inside it a {\tt FILE *} handle used
-by standard C IO library (also known as {\tt stdio}).
-
-\wxheading{Derived from}
-
-None.
-
-\wxheading{Include files}
-
-<wx/ffile.h>
-
-\twocolwidtha{7cm}
-\begin{twocollist}\itemsep=0pt%
-\twocolitem{{\bf wxFromStart}}{Count offset from the start of the file}
-\twocolitem{{\bf wxFromCurrent}}{Count offset from the current position of the file pointer}
-\twocolitem{{\bf wxFromEnd}}{Count offset from the end of the file (backwards)}
-\end{twocollist}
-
-\latexignore{\rtfignore{\wxheading{Members}}}
-
-\membersection{wxFFile::wxFFile}\label{wxffileconstr}
-
-\func{}{wxFFile}{\void}
-
-Default constructor.
-
-\func{}{wxFFile}{\param{const char*}{ filename}, \param{const char*}{ mode = "r"}}
-
-Opens a file with the given mode. As there is no way to return whether the
-operation was successful or not from the constructor you should test the
-return value of \helpref{IsOpened}{wxffileisopened} to check that it didn't
-fail.
-
-\func{}{wxFFile}{\param{FILE*}{ fp}}
-
-Opens a file with the given file pointer, which has already been opened.
-
-\wxheading{Parameters}
-
-\docparam{filename}{The filename.}
-
-\docparam{mode}{The mode in which to open the file using standard C strings.}
-
-\docparam{fp}{An existing file descriptor, such as stderr.}
-
-\membersection{wxFFile::\destruct{wxFFile}}
-
-\func{}{\destruct{wxFFile}}{\void}
-
-Destructor will close the file.
-
-NB: it is not virtual so you should {\it not} derive from wxFFile!
-
-\membersection{wxFFile::Attach}\label{wxffileattach}
-
-\func{void}{Attach}{\param{FILE*}{ fp}}
-
-Attaches an existing file pointer to the wxFFile object.
-
-The descriptor should be already opened and it will be closed by wxFFile
-object.
-
-\membersection{wxFFile::Close}\label{wxffileclose}
-
-\func{bool}{Close}{\void}
-
-Closes the file and returns TRUE on success.
-
-\membersection{wxFFile::Detach}\label{wxffiledetach}
-
-\func{void}{Detach}{\void}
-
-Get back a file pointer from wxFFile object - the caller is responsible for closing the file if this
-descriptor is opened. \helpref{IsOpened()}{wxffileisopened} will return FALSE after call to Detach().
-
-\membersection{wxFFile::fp}\label{wxffilefp}
-
-\constfunc{FILE *}{fp}{\void}
-
-Returns the file pointer associated with the file.
-
-\membersection{wxFFile::Eof}\label{wxffileeof}
-
-\constfunc{bool}{Eof}{\void}
-
-Returns TRUE if the an attempt has been made to read {\it past}
-the end of the file. 
-
-Note that the behaviour of the file descriptor based class
-\helpref{wxFile}{wxfile} is different as \helpref{wxFile::Eof}{wxfileeof}
-will return TRUE here as soon as the last byte of the file has been
-read.
-
-\membersection{wxFFile::Flush}\label{wxffileflush}
-
-\func{bool}{Flush}{\void}
-
-Flushes the file and returns TRUE on success.
-
-\membersection{wxFFile::IsOpened}\label{wxffileisopened}
-
-\constfunc{bool}{IsOpened}{\void}
-
-Returns TRUE if the file has been opened.
-
-\membersection{wxFFile::Length}\label{wxffilelength}
-
-\constfunc{size\_t}{Length}{\void}
-
-Returns the length of the file.
-
-\membersection{wxFFile::Open}\label{wxffileopen}
-
-\func{bool}{Open}{\param{const char*}{ filename}, \param{const char*}{ mode = "r"}}
-
-Opens the file, returning TRUE if successful.
-
-\wxheading{Parameters}
-
-\docparam{filename}{The filename.}
-
-\docparam{mode}{The mode in which to open the file.}
-
-\membersection{wxFFile::Read}\label{wxffileread}
-
-\func{size\_t}{Read}{\param{void*}{ buffer}, \param{off\_t}{ count}}
-
-Reads the specified number of bytes into a buffer, returning the actual number read.
-
-\wxheading{Parameters}
-
-\docparam{buffer}{A buffer to receive the data.}
-
-\docparam{count}{The number of bytes to read.}
-
-\wxheading{Return value}
-
-The number of bytes read.
-
-\membersection{wxFFile::Seek}\label{wxffileseek}
-
-\func{bool}{Seek}{\param{long }{ofs}, \param{wxSeekMode }{mode = wxFromStart}}
-
-Seeks to the specified position and returs TRUE on success.
-
-\wxheading{Parameters}
-
-\docparam{ofs}{Offset to seek to.}
-
-\docparam{mode}{One of {\bf wxFromStart}, {\bf wxFromEnd}, {\bf wxFromCurrent}.}
-
-\membersection{wxFFile::SeekEnd}\label{wxffileseekend}
-
-\func{bool}{SeekEnd}{\param{long }{ofs = 0}}
-
-Moves the file pointer to the specified number of bytes before the end of the file
-and returns TRUE on success.
-
-\wxheading{Parameters}
-
-\docparam{ofs}{Number of bytes before the end of the file.}
-
-\membersection{wxFFile::Tell}\label{wxffiletell}
-
-\constfunc{size\_t}{Tell}{\void}
-
-Returns the current position.
-
-\membersection{wxFFile::Write}\label{wxffilewrite}
-
-\func{size\_t}{Write}{\param{const void*}{ buffer}, \param{size\_t}{ count}}
-
-Writes the specified number of bytes from a buffer.
-
-\wxheading{Parameters}
-
-\docparam{buffer}{A buffer containing the data.}
-
-\docparam{count}{The number of bytes to write.}
-
-\wxheading{Return value}
-
-Number of bytes written.
-
-\membersection{wxFFile::Write}\label{wxffilewrites}
+\func{bool}{Write}{\param{const wxString\& }{s}, \param{wxMBConv\&}{ conv = wxConvUTF8}}
 
-\func{bool}{Write}{\param{const wxString\& }{s}}
+Writes the contents of the string to the file, returns true on success.
 
-Writes the contents of the string to the file, returns TRUE on success.
+The second argument is only meaningful in Unicode build of wxWindows when
+{\it conv} is used to convert {\it s} to multibyte representation.
 
