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- // -*- c++ -*-
- // Generated by gtkmmproc -- DO NOT MODIFY!
- #ifndef _GLIBMM_IOCHANNEL_H
- #define _GLIBMM_IOCHANNEL_H
-
-
- // -*- c++ -*-
- /* $Id: iochannel.hg,v 1.7 2005/01/21 12:48:05 murrayc Exp $ */
-
- /* Copyright (C) 2002 The gtkmm Development Team
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Library General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Library General Public License for more details.
- *
- * You should have received a copy of the GNU Library General Public
- * License along with this library; if not, write to the Free
- * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- */
-
-
- #include <glibmm/error.h>
- #include <glibmm/main.h>
- #include <glibmm/refptr.h>
- #include <glibmm/ustring.h>
- #include <glib/gtypes.h>
-
- #include <string>
- #include <glibmmconfig.h>
-
- GLIBMM_USING_STD(string)
-
- #ifndef DOXYGEN_SHOULD_SKIP_THIS
- extern "C" { typedef struct _GIOChannel GIOChannel; }
- #endif
-
-
- namespace Glib
- {
-
- class Source;
- class IOSource;
-
- /** @addtogroup glibmmEnums Enums and Flags */
-
- /**
- * @ingroup glibmmEnums
- */
- enum SeekType
- {
- SEEK_TYPE_CUR,
- SEEK_TYPE_SET,
- SEEK_TYPE_END
- };
-
-
- /**
- * @ingroup glibmmEnums
- */
- enum IOStatus
- {
- IO_STATUS_ERROR,
- IO_STATUS_NORMAL,
- IO_STATUS_EOF,
- IO_STATUS_AGAIN
- };
-
-
- /**
- * @ingroup glibmmEnums
- * @par Bitwise operators:
- * <tt>%IOFlags operator|(IOFlags, IOFlags)</tt><br>
- * <tt>%IOFlags operator&(IOFlags, IOFlags)</tt><br>
- * <tt>%IOFlags operator^(IOFlags, IOFlags)</tt><br>
- * <tt>%IOFlags operator~(IOFlags)</tt><br>
- * <tt>%IOFlags& operator|=(IOFlags&, IOFlags)</tt><br>
- * <tt>%IOFlags& operator&=(IOFlags&, IOFlags)</tt><br>
- * <tt>%IOFlags& operator^=(IOFlags&, IOFlags)</tt><br>
- */
- enum IOFlags
- {
- IO_FLAG_APPEND = 1 << 0,
- IO_FLAG_NONBLOCK = 1 << 1,
- IO_FLAG_IS_READABLE = 1 << 2,
- IO_FLAG_IS_WRITEABLE = 1 << 3,
- IO_FLAG_IS_SEEKABLE = 1 << 4,
- IO_FLAG_GET_MASK = 0x0,
- IO_FLAG_SET_MASK = 0x1
- };
-
- /** @ingroup glibmmEnums */
- inline IOFlags operator|(IOFlags lhs, IOFlags rhs)
- { return static_cast<IOFlags>(static_cast<unsigned>(lhs) | static_cast<unsigned>(rhs)); }
-
- /** @ingroup glibmmEnums */
- inline IOFlags operator&(IOFlags lhs, IOFlags rhs)
- { return static_cast<IOFlags>(static_cast<unsigned>(lhs) & static_cast<unsigned>(rhs)); }
-
- /** @ingroup glibmmEnums */
- inline IOFlags operator^(IOFlags lhs, IOFlags rhs)
- { return static_cast<IOFlags>(static_cast<unsigned>(lhs) ^ static_cast<unsigned>(rhs)); }
-
- /** @ingroup glibmmEnums */
- inline IOFlags operator~(IOFlags flags)
- { return static_cast<IOFlags>(~static_cast<unsigned>(flags)); }
-
- /** @ingroup glibmmEnums */
- inline IOFlags& operator|=(IOFlags& lhs, IOFlags rhs)
- { return (lhs = static_cast<IOFlags>(static_cast<unsigned>(lhs) | static_cast<unsigned>(rhs))); }
-
- /** @ingroup glibmmEnums */
- inline IOFlags& operator&=(IOFlags& lhs, IOFlags rhs)
- { return (lhs = static_cast<IOFlags>(static_cast<unsigned>(lhs) & static_cast<unsigned>(rhs))); }
-
- /** @ingroup glibmmEnums */
- inline IOFlags& operator^=(IOFlags& lhs, IOFlags rhs)
- { return (lhs = static_cast<IOFlags>(static_cast<unsigned>(lhs) ^ static_cast<unsigned>(rhs))); }
-
-
- /** Exception class for IOChannel errors.
- */
- class IOChannelError : public Glib::Error
- {
- public:
- enum Code
- {
- FILE_TOO_BIG,
- INVALID_ARGUMENT,
- IO_ERROR,
- IS_DIRECTORY,
- NO_SPACE_LEFT,
- NO_SUCH_DEVICE,
- OVERFLOWN,
- BROKEN_PIPE,
- FAILED
- };
-
- IOChannelError(Code error_code, const Glib::ustring& error_message);
- explicit IOChannelError(GError* gobject);
- Code code() const;
-
- #ifndef DOXYGEN_SHOULD_SKIP_THIS
- private:
- static void throw_func(GError* gobject);
- friend void wrap_init(); // uses throw_func()
- #endif
- };
-
-
- #ifndef DOXYGEN_SHOULD_SKIP_THIS
- class GlibmmIOChannel;
- #endif
-
- /** IOChannel aims to provide portable I/O support for files, pipes
- * and sockets, and to integrate them with the GLib main event loop.
- *
- * Note that IOChannels implement an automatic implicit character set
- * conversion to the data stream, and usually will not pass by default
- * binary data unchanged. To set the encoding of the channel, use e.g.
- * set_encoding("ISO-8859-15"). To set the channel to no encoding, use
- * set_encoding() without any arguments.
- *
- * You can create an IOChannel with one of the static create methods, or
- * implement one yourself, in which case you have to 1) override all
- * _vfunc() members. 2) set the GIOChannel flags in your constructor.
- *
- * @note This feature of being able to implement a custom Glib::IOChannel is
- * deprecated in glibmm 2.2. The vfunc interface has not yet stabilized
- * enough to allow that -- the C++ wrapper went in by pure accident. Besides,
- * it isn't terribly useful either. Thus please refrain from overriding any
- * IOChannel vfuncs.
- */
- class IOChannel : public sigc::trackable
- {
- public:
- #ifndef DOXYGEN_SHOULD_SKIP_THIS
- typedef IOChannel CppObjectType;
- typedef GIOChannel BaseObjectType;
- #endif /* DOXYGEN_SHOULD_SKIP_THIS */
-
- private:
-
-
- public:
- virtual ~IOChannel();
-
- /** Open a file @a filename as an I/O channel using mode @a mode.
- * This channel will be closed when the last reference to it is dropped,
- * so there is no need to call close() (though doing so will not cause
- * problems, as long as no attempt is made to access the channel after
- * it is closed).
- * @param filename The name of the file to open.
- * @param mode One of <tt>"r"</tt>, <tt>"w"</tt>, <tt>"a"</tt>,
- * <tt>"r+"</tt>, <tt>"w+"</tt>, <tt>"a+"</tt>. These have the
- * same meaning as in <tt>fopen()</tt>.
- * @return An IOChannel for the opened file.
- * @throw Glib::FileError
- */
- static Glib::RefPtr<IOChannel> create_from_file(const std::string& filename, const std::string& mode);
-
-
- /** Creates an I/O channel from a file descriptor.
- * On Unix, IOChannels created with this function work for any file
- * descriptor or socket.
- *
- * On Win32, this can be used either for files opened with the MSVCRT (the
- * Microsoft run-time C library) <tt>_open()</tt> or <tt>_pipe()</tt>,
- * including file descriptors 0, 1 and 2 (corresponding to <tt>stdin</tt>,
- * <tt>stdout</tt> and <tt>stderr</tt>), or for Winsock <tt>SOCKET</tt>s. If
- * the parameter is a legal file descriptor, it is assumed to be such,
- * otherwise it should be a <tt>SOCKET</tt>. This relies on <tt>SOCKET</tt>s
- * and file descriptors not overlapping. If you want to be certain, call
- * either create_from_win32_fd() or create_from_win32_socket() instead as
- * appropriate.
- *
- * The term file descriptor as used in the context of Win32 refers to the
- * emulated Unix-like file descriptors MSVCRT provides. The native
- * corresponding concept is file <tt>HANDLE</tt>. There isn't as of yet
- * a way to get IOChannels for Win32 file <tt>HANDLE</tt>s.
- */
- static Glib::RefPtr<IOChannel> create_from_fd(int fd);
-
-
- /* defined(DOXYGEN_SHOULD_SKIP_THIS) actually does the opposite of what it looks like... */
- #if defined(G_OS_WIN32) || defined(DOXYGEN_SHOULD_SKIP_THIS)
-
- /** Create an I/O channel for C runtime (emulated Unix-like) file descriptors.
- * After calling add_watch() on a I/O channel returned by this function, you
- * shouldn't call read() on the file descriptor. This is because adding
- * polling for a file descriptor is implemented on Win32 by starting a thread
- * that sits blocked in a <tt>%read()</tt> from the file descriptor most of
- * the time. All reads from the file descriptor should be done by this
- * internal GLib thread. Your code should call only IOChannel::read().
- */
- static Glib::RefPtr<IOChannel> create_from_win32_fd(int fd);
-
-
- /** Create an I/O channel for a winsock socket. The parameter should be a
- * <tt>SOCKET</tt>. Contrary to I/O channels for file descriptors (on Win32),
- * you can use normal <tt>recv()</tt> or <tt>recvfrom()</tt> on sockets even
- * if GLib is polling them.
- */
- static Glib::RefPtr<IOChannel> create_from_win32_socket(int socket);
-
-
- #endif /* defined(G_OS_WIN32) || defined(DOXYGEN_SHOULD_SKIP_THIS) */
-
- /** Read a single UCS-4 character.
- * @retval unichar The Unicode character.
- * @return The status of the operation.
- * @throw Glib::IOChannelError
- * @throw Glib::ConvertError
- */
-
- /** This function cannot be called on a channel with <tt>0</tt> encoding.
- * @param thechar A location to return a character.
- * @param error A location to return an error of type G::ConvertError
- * or G::IOChannelError.
- * @return A G::IOStatus.
- */
- IOStatus read(gunichar& unichar);
-
- /** Read a character sequence into memory.
- * @param buf A buffer to read data into.
- * @param count The size of the buffer in bytes. Note that the buffer may
- * not be complelely filled even if there is data in the buffer if the
- * remaining data is not a complete character.
- * @retval bytes_read The number of bytes read. This may be zero even on
- * success if @a count < 6 and the channel's encoding is not <tt>""</tt>.
- * This indicates that the next UTF-8 character is too wide for the buffer.
- * @return The status of the operation.
- * @throw Glib::IOChannelError
- * @throw Glib::ConvertError
- */
-
- /** Replacement for g_io_channel_read() with the new API.
- * @param buf A buffer to read data into.
- * @param count The size of the buffer. Note that the buffer may
- * not be complelely filled even if there is data
- * in the buffer if the remaining data is not a
- * complete character.
- * @param bytes_read The number of bytes read. This may be zero even on
- * success if count < 6 and the channel's encoding is non-<tt>0</tt>.
- * This indicates that the next UTF-8 character is too wide for
- * the buffer.
- * @param error A location to return an error of type G::ConvertError
- * or G::IOChannelError.
- * @return The status of the operation.
- */
- IOStatus read(char* buf, gsize count, gsize& bytes_read);
-
- /** Read a maximum of @a count bytes into @a str.
- * @param count The maximum number of bytes to read.
- * @retval str The characters that have been read.
- * @return The status of the operation.
- * @throw Glib::IOChannelError
- * @throw Glib::ConvertError
- */
- IOStatus read(Glib::ustring& str, gsize count);
-
- /** Read a whole line.
- * Reads until the line separator is found, which is included
- * in the result string.
- * @retval line The line that was read.
- * @return The status of the operation.
- * @throw Glib::IOChannelError
- * @throw Glib::ConvertError
- */
- IOStatus read_line(Glib::ustring& line);
-
-
- /** Reads all the remaining data from the file.
- * @retval str The resulting string.
- * @return Glib::IO_STATUS_NORMAL on success. This function never
- * returns Glib::IO_STATUS_EOF.
- * @throw Glib::IOChannelError
- * @throw Glib::ConvertError
- */
- IOStatus read_to_end(Glib::ustring& str);
-
-
- /** Write a string to the I/O channel.
- * Note that this method does not return the number of characters written.
- * If the channel is blocking and the returned value is
- * Glib::IO_STATUS_NORMAL, the whole string was written.
- * @param str the string to write.
- * @return The status of the operation.
- * @throw Glib::IOChannelError
- * @throw Glib::ConvertError
- */
- IOStatus write(const Glib::ustring& str);
-
- /** Write a memory area of @a count bytes to the I/O channel.
- * @param buf The start of the memory area.
- * @param count The number of bytes to write.
- * @retval bytes_written The number of bytes written to the channel.
- * @return The status of the operation.
- * @throw Glib::IOChannelError
- * @throw Glib::ConvertError
- */
-
- /** Replacement for g_io_channel_write() with the new API.
- *
- * On seekable channels with encodings other than <tt>0</tt> or UTF-8, generic
- * mixing of reading and writing is not allowed. A call to g_io_channel_write_chars()
- * may only be made on a channel from which data has been read in the
- * cases described in the documentation for g_io_channel_set_encoding().
- * @param buf A buffer to write data from.
- * @param count The size of the buffer. If -1, the buffer
- * is taken to be a nul-terminated string.
- * @param bytes_written The number of bytes written. This can be nonzero
- * even if the return value is not G::IO_STATUS_NORMAL.
- * If the return value is G::IO_STATUS_NORMAL and the
- * channel is blocking, this will always be equal
- * to @a count if @a count >= 0.
- * @param error A location to return an error of type G::ConvertError
- * or G::IOChannelError.
- * @return The status of the operation.
- */
- IOStatus write(const char* buf, gssize count, gsize& bytes_written);
-
- /** Write a single UCS-4 character to the I/O channel.
- * @param unichar The character to write.
- * @return The status of the operation.
- * @throw Glib::IOChannelError
- * @throw Glib::ConvertError
- */
-
- /** This function cannot be called on a channel with <tt>0</tt> encoding.
- * @param thechar A character.
- * @param error A location to return an error of type G::ConvertError
- * or G::IOChannelError.
- * @return A G::IOStatus.
- */
- IOStatus write(gunichar unichar);
-
- /** Seek the I/O channel to a specific position.
- * @param offset The offset in bytes from the position specified by @a type.
- * @param type A SeekType. The type Glib::SEEK_TYPE_CUR is only allowed in
- * those cases where a call to set_encoding() is allowed. See the
- * documentation for set_encoding() for details.
- * @return The status of the operation.
- * @throw Glib::IOChannelError
- * @throw Glib::ConvertError
- */
-
- /** Replacement for g_io_channel_seek() with the new API.
- * @param offset The offset in bytes from the position specified by @a type .
- * @param type A G::SeekType. The type G::SEEK_CUR is only allowed in those
- * cases where a call to g_io_channel_set_encoding()
- * is allowed. See the documentation for
- * g_io_channel_set_encoding() for details.
- * @param error A location to return an error of type G::IOChannelError.
- * @return The status of the operation.
- */
- IOStatus seek(gint64 offset, SeekType type = SEEK_TYPE_SET);
-
- /** Flush the buffers of the I/O channel.
- * @return The status of the operation.
- * @throw Glib::IOChannelError
- * @throw Glib::ConvertError
- */
-
- /** Flushes the write buffer for the GIOChannel.
- * @param error Location to store an error of type G::IOChannelError.
- * @return The status of the operation: One of
- * G::IO_CHANNEL_NORMAL, G::IO_CHANNEL_AGAIN, or
- * G::IO_CHANNEL_ERROR.
- */
- IOStatus flush();
-
- /** Close the I/O channel.
- * Any pending data to be written will be flushed if @a flush is <tt>true</tt>.
- * The channel will not be freed until the last reference is dropped.
- * Accessing the channel after closing it is considered an error.
- * @param flush Whether to flush() pending data before closing the channel.
- * @return The status of the operation.
- * @throw Glib::IOChannelError
- */
-
- /** Close an IO channel. Any pending data to be written will be
- * flushed if @a flush is <tt>true</tt>. The channel will not be freed until the
- * last reference is dropped using g_io_channel_unref().
- * @param flush If <tt>true</tt>, flush pending.
- * @param err Location to store a G::IOChannelError.
- * @return The status of the operation.
- */
- IOStatus close(bool flush = true);
-
- /** Get the IOChannel internal buffer size.
- * @return The buffer size.
- */
-
- /** Gets the buffer size.
- * @return The size of the buffer.
- */
- gsize get_buffer_size() const;
-
- /** Set the internal IOChannel buffer size.
- * @param size The buffer size the IOChannel should use.
- */
-
- /** Sets the buffer size.
- * @param size The size of the buffer. 0 == pick a good size.
- */
- void set_buffer_size(gsize size);
-
- /** Get the current flags for a IOChannel, including read-only
- * flags such as Glib::IO_FLAG_IS_READABLE.
- *
- * The values of the flags Glib::IO_FLAG_IS_READABLE and
- * Glib::IO_FLAG_IS_WRITEABLE are cached for internal use by the channel when
- * it is created. If they should change at some later point (e.g. partial
- * shutdown of a socket with the UNIX <tt>shutdown()</tt> function), the user
- * should immediately call get_flags() to update the internal values of these
- * flags.
- * @return Bitwise combination of the flags set on the channel.
- */
-
- /** Gets the current flags for a G::IOChannel, including read-only
- * flags such as G::IO_FLAG_IS_READABLE.
- *
- * The values of the flags G::IO_FLAG_IS_READABLE and G::IO_FLAG_IS_WRITEABLE
- * are cached for internal use by the channel when it is created.
- * If they should change at some later point (e.g. partial shutdown
- * of a socket with the UNIX shutdown() function), the user
- * should immediately call g_io_channel_get_flags() to update
- * the internal values of these flags.
- * @return The flags which are set on the channel.
- */
- IOFlags get_flags() const;
-
- /** Set flags on the IOChannel.
- * @param flags Bitwise combination of the flags to set.
- * @return The operation result code.
- * @throw Glib::IOChannelError
- */
-
- /** Sets the (writeable) flags in @a channel to ( @a flags & G::IO_CHANNEL_SET_MASK).
- * @param flags The flags to set on the IO channel.
- * @param error A location to return an error of type G::IOChannelError.
- * @return The status of the operation.
- */
- IOStatus set_flags(IOFlags flags);
-
- /** Set the buffering status of the I/O channel.
- * The buffering state can only be set if the channel's encoding is
- * <tt>""</tt>. For any other encoding, the channel must be buffered.
- *
- * A buffered channel can only be set unbuffered if the channel's internal
- * buffers have been flushed. Newly created channels or channels which have
- * returned Glib::IO_STATUS_EOF not require such a flush. For write-only
- * channels, a call to flush() is sufficient. For all other channels, the
- * buffers may be flushed by a call to seek(). This includes the possibility
- * of seeking with seek type Glib::SEEK_TYPE_CUR and an offset of zero. Note
- * that this means that socket-based channels cannot be set unbuffered once
- * they have had data read from them.
- *
- * The default state of the channel is buffered.
- *
- * @param buffered Whether to set the channel buffered or unbuffered.
- */
-
- /** The buffering state can only be set if the channel's encoding
- * is <tt>0</tt>. For any other encoding, the channel must be buffered.
- *
- * A buffered channel can only be set unbuffered if the channel's
- * internal buffers have been flushed. Newly created channels or
- * channels which have returned G::IO_STATUS_EOF
- * not require such a flush. For write-only channels, a call to
- * g_io_channel_flush() is sufficient. For all other channels,
- * the buffers may be flushed by a call to g_io_channel_seek_position().
- * This includes the possibility of seeking with seek type G::SEEK_CUR
- * and an offset of zero. Note that this means that socket-based
- * channels cannot be set unbuffered once they have had data
- * read from them.
- *
- * On unbuffered channels, it is safe to mix read and write
- * calls from the new and old APIs, if this is necessary for
- * maintaining old code.
- *
- * The default state of the channel is buffered.
- * @param buffered Whether to set the channel buffered or unbuffered.
- */
- void set_buffered(bool buffered);
-
- /** Get the buffering status of the I/O channel.
- * @return The buffering status of the channel.
- */
-
- /** Returns whether @a channel is buffered.
- * @return <tt>true</tt> if the @a channel is buffered.
- */
- bool get_buffered() const;
-
- /** Returns an IOCondition depending on whether there is data to be
- * read/space to write data in the internal buffers in the I/O channel.
- * Only the flags Glib::IO_IN and Glib::IO_OUT may be set.
- * @return Bitwise combination of Glib::IOCondition flags.
- */
-
- /** This function returns a G::IOCondition depending on whether there
- * is data to be read/space to write data in the
- * internal buffers in the G::IOChannel. Only the flags G::IO_IN and
- * G::IO_OUT may be set.
- * @return A G::IOCondition.
- */
- IOCondition get_buffer_condition() const;
-
- /** Returns whether the file/socket/whatever associated with the I/O channel
- * will be closed when the channel receives its final unref and is destroyed.
- * The default value of this is <tt>true</tt> for channels created by
- * create_from_file(), and <tt>false</tt> for all other channels.
- * @return Whether the channel will be closed on the final unref of the
- * IOChannel object.
- */
-
- /** Returns whether the file/socket/whatever associated with @a channel
- * will be closed when @a channel receives its final unref and is
- * destroyed. The default value of this is <tt>true</tt> for channels created
- * by g_io_channel_new_file(), and <tt>false</tt> for all other channels.
- * @return Whether the channel will be closed on the final unref of
- * the GIOChannel data structure.
- */
- bool get_close_on_unref() const;
-
- /** Setting this flag to <tt>true</tt> for a channel you have already closed
- * can cause problems.
- * @param do_close Whether to close the channel on the final unref of the
- * IOChannel object. The default value of this is <tt>true</tt> for channels
- * created by create_from_file(), and <tt>false</tt> for all other channels.
- */
-
- /** Setting this flag to <tt>true</tt> for a channel you have already closed
- * can cause problems.
- * @param do_close Whether to close the channel on the final unref of
- * the GIOChannel data structure. The default value of
- * this is <tt>true</tt> for channels created by g_io_channel_new_file(),
- * and <tt>false</tt> for all other channels.
- */
- void set_close_on_unref(bool do_close);
-
- /** Sets the encoding for the input/output of the channel.
- * The internal encoding is always UTF-8. The default encoding for the
- * external file is UTF-8. The encoding <tt>""</tt> is safe to use with
- * binary data.
- *
- * The encoding can only be set if one of the following conditions
- * is true:
- *
- * -# The channel was just created, and has not been written to or read from
- * yet.
- * -# The channel is write-only.
- * -# The channel is a file, and the file pointer was just repositioned by a
- * call to seek_position(). (This flushes all the internal buffers.)
- * -# The current encoding is <tt>""</tt> or UTF-8.
- * -# One of the read methods has just returned Glib::IO_STATUS_EOF (or, in
- * the case of read_to_end(), Glib::IO_STATUS_NORMAL).
- * -# The read() method has returned Glib::IO_STATUS_AGAIN or thrown
- * a Glib::Error exception. This may be useful in the case of
- * ConvertError::ILLEGAL_SEQUENCE. Returning one of these statuses
- * from read_line() or read_to_end() does <em>not</em> guarantee that
- * the encoding can be changed.
- *
- * Channels which do not meet one of the above conditions cannot call
- * seek_position() with a seek type of Glib::SEEK_TYPE_CUR and, if they
- * are "seekable", cannot call write() after calling one of the API
- * "read" methods.
- *
- * @param encoding The encoding name, or <tt>""</tt> for binary.
- * @return Glib::IO_STATUS_NORMAL if the encoding was successfully set.
- * @throw Glib::IOChannelError
- */
- IOStatus set_encoding(const std::string& encoding = std::string());
-
-
- /** Get the encoding of the I/O channel.
- * @return The current encoding of the channel.
- */
- std::string get_encoding() const;
-
-
- void set_line_term(const std::string& term = std::string());
-
-
- std::string get_line_term() const;
-
-
- /** Creates an IOSource object.
- * Create a slot from a function to be called when condition is met
- * for the channel with sigc::ptr_fun() or sigc::mem_fun() and pass
- * it into the connect() function of the returned IOSource object.
- * Polling of the channel will start when you attach a MainContext
- * object to the returned IOSource object using its attach() function.
- *
- * Glib::signal_io().connect() is a simpler interface to the same
- * functionality, for the case where you want to add the source to the
- * default main context.
- * @param condition The condition to watch for.
- * @return An IOSource object that can be polled from a MainContext's event loop.
- */
- Glib::RefPtr<IOSource> create_watch(IOCondition condition);
-
-
- virtual void reference() const;
- virtual void unreference() const;
-
-
- GIOChannel* gobj() { return gobject_; }
- const GIOChannel* gobj() const { return gobject_; }
-
- protected:
- GIOChannel* gobject_;
-
- /** Constructor that should be used by derived classes.
- * Use this constructor if you want to inherit from IOChannel.
- * It will set up a GIOChannel that will call the vfuncs of your
- * class even if it is being used from C code, and it will keep
- * a reference to the C++ code while the GIOChannel exists.
- */
- IOChannel();
-
-
- #ifndef DOXYGEN_SHOULD_SKIP_THIS
- IOChannel(GIOChannel* gobject, bool take_copy);
- #endif
-
- virtual IOStatus read_vfunc(char* buf, gsize count, gsize& bytes_read);
- virtual IOStatus write_vfunc(const char* buf, gsize count, gsize& bytes_written);
- virtual IOStatus seek_vfunc(gint64 offset, SeekType type);
- virtual IOStatus close_vfunc();
- virtual IOStatus set_flags_vfunc(IOFlags flags);
- virtual IOFlags get_flags_vfunc();
- virtual Glib::RefPtr<Glib::Source> create_watch_vfunc(IOCondition cond);
-
- #ifndef DOXYGEN_SHOULD_SKIP_THIS
- friend class Glib::GlibmmIOChannel;
- #endif
-
-
- };
-
- Glib::RefPtr<IOChannel> wrap(GIOChannel* gobject, bool take_copy = false);
-
- } // namespace Glib
-
-
- #endif /* _GLIBMM_IOCHANNEL_H */
-
-