* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the
- * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- * Boston, MA 02111-1307, USA.
+ * License along with this library; if not, see <http://www.gnu.org/licenses/>.
*/
/*
/**
* SECTION:iochannels
* @title: IO Channels
- * @short_description: portable support for using files, pipes and
- * sockets
- * @see_also: <para> <variablelist> <varlistentry>
- * <term>g_io_add_watch(), g_io_add_watch_full(),
- * g_source_remove()</term> <listitem><para> Convenience
- * functions for creating #GIOChannel instances and adding
- * them to the <link linkend="glib-The-Main-Event-Loop">main
- * event loop</link>. </para></listitem> </varlistentry>
- * </variablelist> </para>
+ * @short_description: portable support for using files, pipes and sockets
+ * @see_also: g_io_add_watch(), g_io_add_watch_full(), g_source_remove(),
+ * #GMainLoop
*
* The #GIOChannel data type aims to provide a portable method for
* using file descriptors, pipes, and sockets, and integrating them
- * into the <link linkend="glib-The-Main-Event-Loop">main event
- * loop</link>. Currently full support is available on UNIX platforms,
- * support for Windows is only partially complete.
+ * into the [main event loop][glib-The-Main-Event-Loop]. Currently,
+ * full support is available on UNIX platforms, support for Windows
+ * is only partially complete.
*
* To create a new #GIOChannel on UNIX systems use
* g_io_channel_unix_new(). This works for plain file descriptors,
* g_io_channel_write_chars(), g_io_channel_seek_position(), and
* g_io_channel_shutdown().
*
- * To add a #GIOChannel to the <link
- * linkend="glib-The-Main-Event-Loop">main event loop</link> use
- * g_io_add_watch() or g_io_add_watch_full(). Here you specify which
+ * To add a #GIOChannel to the [main event loop][glib-The-Main-Event-Loop],
+ * use g_io_add_watch() or g_io_add_watch_full(). Here you specify which
* events you are interested in on the #GIOChannel, and provide a
* function to be called whenever these events occur.
*
- * #GIOChannel instances are created with an initial reference count of
- * 1. g_io_channel_ref() and g_io_channel_unref() can be used to
+ * #GIOChannel instances are created with an initial reference count of 1.
+ * g_io_channel_ref() and g_io_channel_unref() can be used to
* increment or decrement the reference count respectively. When the
* reference count falls to 0, the #GIOChannel is freed. (Though it
* isn't closed automatically, unless it was created using
*
* Reads data from a #GIOChannel.
*
- * Return value: %G_IO_ERROR_NONE if the operation was successful.
+ * Returns: %G_IO_ERROR_NONE if the operation was successful.
*
* Deprecated:2.2: Use g_io_channel_read_chars() instead.
**/
*
* Writes data to a #GIOChannel.
*
- * Return value: %G_IO_ERROR_NONE if the operation was successful.
+ * Returns: %G_IO_ERROR_NONE if the operation was successful.
*
* Deprecated:2.2: Use g_io_channel_write_chars() instead.
**/
* Sets the current position in the #GIOChannel, similar to the standard
* library function fseek().
*
- * Return value: %G_IO_ERROR_NONE if the operation was successful.
+ * Returns: %G_IO_ERROR_NONE if the operation was successful.
*
* Deprecated:2.2: Use g_io_channel_seek_position() instead.
**/
* so will not cause problems, as long as no attempt is made to
* access the channel after it is closed).
*
- * Return value: A #GIOChannel on success, %NULL on failure.
+ * Returns: A #GIOChannel on success, %NULL on failure.
**/
/**
* flushed if @flush is %TRUE. The channel will not be freed until the
* last reference is dropped using g_io_channel_unref().
*
- * Return value: the status of the operation.
+ * Returns: the status of the operation.
**/
GIOStatus
g_io_channel_shutdown (GIOChannel *channel,
* is data to be read/space to write data in the internal buffers in
* the #GIOChannel. Only the flags %G_IO_IN and %G_IO_OUT may be set.
*
- * Return value: A #GIOCondition
+ * Returns: A #GIOCondition
**/
GIOCondition
g_io_channel_get_buffer_condition (GIOChannel *channel)
/**
* g_io_channel_error_from_errno:
- * @en: an <literal>errno</literal> error number, e.g. <literal>EINVAL</literal>
+ * @en: an `errno` error number, e.g. `EINVAL`
*
- * Converts an <literal>errno</literal> error number to a #GIOChannelError.
+ * Converts an `errno` error number to a #GIOChannelError.
*
- * Return value: a #GIOChannelError error number, e.g.
+ * Returns: a #GIOChannelError error number, e.g.
* %G_IO_CHANNEL_ERROR_INVAL.
**/
GIOChannelError
*
* Gets the buffer size.
*
- * Return value: the size of the buffer.
+ * Returns: the size of the buffer.
**/
gsize
g_io_channel_get_buffer_size (GIOChannel *channel)
* where in the file a line break occurs. A value of %NULL
* indicates autodetection.
*
- * Return value: The line termination string. This value
+ * Returns: The line termination string. This value
* is owned by GLib and must not be freed.
**/
const gchar *
*
* Sets the (writeable) flags in @channel to (@flags & %G_IO_FLAG_SET_MASK).
*
- * Return value: the status of the operation.
+ * Returns: the status of the operation.
**/
/**
* GIOFlags:
- * @G_IO_FLAG_APPEND: turns on append mode, corresponds to <literal>O_APPEND</literal>
- * (see the documentation of the UNIX open()
- * syscall).
+ * @G_IO_FLAG_APPEND: turns on append mode, corresponds to %O_APPEND
+ * (see the documentation of the UNIX open() syscall)
* @G_IO_FLAG_NONBLOCK: turns on nonblocking mode, corresponds to
- * <literal>O_NONBLOCK</literal>/<literal>O_NDELAY</literal>
- * (see the documentation of the UNIX open() syscall).
+ * %O_NONBLOCK/%O_NDELAY (see the documentation of the UNIX open()
+ * syscall)
* @G_IO_FLAG_IS_READABLE: indicates that the io channel is readable.
- * This flag cannot be changed.
+ * This flag cannot be changed.
* @G_IO_FLAG_IS_WRITABLE: indicates that the io channel is writable.
- * This flag cannot be changed.
+ * This flag cannot be changed.
+ * @G_IO_FLAG_IS_WRITEABLE: a misspelled version of @G_IO_FLAG_IS_WRITABLE
+ * that existed before the spelling was fixed in GLib 2.30. It is kept
+ * here for compatibility reasons. Deprecated since 2.30
* @G_IO_FLAG_IS_SEEKABLE: indicates that the io channel is seekable,
- * i.e. that g_io_channel_seek_position() can
- * be used on it. This flag cannot be changed.
+ * i.e. that g_io_channel_seek_position() can be used on it.
+ * This flag cannot be changed.
* @G_IO_FLAG_MASK: the mask that specifies all the valid flags.
* @G_IO_FLAG_GET_MASK: the mask of the flags that are returned from
- * g_io_channel_get_flags().
+ * g_io_channel_get_flags()
* @G_IO_FLAG_SET_MASK: the mask of the flags that the user can modify
- * with g_io_channel_set_flags().
+ * with g_io_channel_set_flags()
*
* Specifies properties of a #GIOChannel. Some of the flags can only be
* read with g_io_channel_get_flags(), but not changed with
* g_io_channel_set_flags().
- **/
-/**
- * G_IO_FLAG_IS_WRITEABLE:
- *
- * This is a misspelled version of G_IO_FLAG_IS_WRITABLE that existed
- * before the spelling was fixed in GLib 2.30. It is kept here for
- * compatibility reasons.
- *
- * Deprecated:2.30:Use G_IO_FLAG_IS_WRITABLE instead.
- **/
+ */
GIOStatus
g_io_channel_set_flags (GIOChannel *channel,
GIOFlags flags,
* should immediately call g_io_channel_get_flags() to update
* the internal values of these flags.
*
- * Return value: the flags which are set on the channel
+ * Returns: the flags which are set on the channel
**/
GIOFlags
g_io_channel_get_flags (GIOChannel *channel)
* destroyed. The default value of this is %TRUE for channels created
* by g_io_channel_new_file (), and %FALSE for all other channels.
*
- * Return value: Whether the channel will be closed on the final unref of
+ * Returns: Whether the channel will be closed on the final unref of
* the GIOChannel data structure.
**/
gboolean
*
* Replacement for g_io_channel_seek() with the new API.
*
- * Return value: the status of the operation.
+ * Returns: the status of the operation.
**/
/**
* GSeekType:
*
* Flushes the write buffer for the GIOChannel.
*
- * Return value: the status of the operation: One of
+ * Returns: the status of the operation: One of
* #G_IO_STATUS_NORMAL, #G_IO_STATUS_AGAIN, or
* #G_IO_STATUS_ERROR.
**/
*
* The encoding can only be set if one of the following conditions
* is true:
- * <itemizedlist>
- * <listitem><para>
- * The channel was just created, and has not been written to or read
- * from yet.
- * </para></listitem>
- * <listitem><para>
- * The channel is write-only.
- * </para></listitem>
- * <listitem><para>
- * The channel is a file, and the file pointer was just
- * repositioned by a call to g_io_channel_seek_position().
- * (This flushes all the internal buffers.)
- * </para></listitem>
- * <listitem><para>
- * The current encoding is %NULL or UTF-8.
- * </para></listitem>
- * <listitem><para>
- * One of the (new API) read functions has just returned %G_IO_STATUS_EOF
- * (or, in the case of g_io_channel_read_to_end(), %G_IO_STATUS_NORMAL).
- * </para></listitem>
- * <listitem><para>
- * One of the functions g_io_channel_read_chars() or
+ *
+ * - 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 g_io_channel_seek_position(). (This flushes all the
+ * internal buffers.)
+ *
+ * - The current encoding is %NULL or UTF-8.
+ *
+ * - One of the (new API) read functions has just returned %G_IO_STATUS_EOF
+ * (or, in the case of g_io_channel_read_to_end(), %G_IO_STATUS_NORMAL).
+ *
+ * - One of the functions g_io_channel_read_chars() or
* g_io_channel_read_unichar() has returned %G_IO_STATUS_AGAIN or
* %G_IO_STATUS_ERROR. This may be useful in the case of
* %G_CONVERT_ERROR_ILLEGAL_SEQUENCE.
* Returning one of these statuses from g_io_channel_read_line(),
* g_io_channel_read_line_string(), or g_io_channel_read_to_end()
- * does <emphasis>not</emphasis> guarantee that the encoding can
- * be changed.
- * </para></listitem>
- * </itemizedlist>
+ * does not guarantee that the encoding can be changed.
+ *
* Channels which do not meet one of the above conditions cannot call
* g_io_channel_seek_position() with an offset of %G_SEEK_CUR, and, if
* they are "seekable", cannot call g_io_channel_write_chars() after
* calling one of the API "read" functions.
*
- * Return Value: %G_IO_STATUS_NORMAL if the encoding was successfully set.
- **/
+ * Return Value: %G_IO_STATUS_NORMAL if the encoding was successfully set
+ */
GIOStatus
g_io_channel_set_encoding (GIOChannel *channel,
const gchar *encoding,
* The internal encoding is always UTF-8. The encoding %NULL
* makes the channel safe for binary data.
*
- * Return value: A string containing the encoding, this string is
+ * Returns: A string containing the encoding, this string is
* owned by GLib and must not be freed.
**/
const gchar *
* @str_return will contain allocated memory if the return
* is %G_IO_STATUS_NORMAL.
*
- * Return value: the status of the operation.
+ * Returns: the status of the operation.
**/
GIOStatus
g_io_channel_read_line (GIOChannel *channel,
status = g_io_channel_read_line_backend (channel, &got_length, terminator_pos, error);
- if (length)
+ if (length && status != G_IO_STATUS_ERROR)
*length = got_length;
if (status == G_IO_STATUS_NORMAL)
*
* Reads a line from a #GIOChannel, using a #GString as a buffer.
*
- * Return value: the status of the operation.
+ * Returns: the status of the operation.
**/
GIOStatus
g_io_channel_read_line_string (GIOChannel *channel,
*
* Reads all the remaining data from the file.
*
- * Return value: %G_IO_STATUS_NORMAL on success.
+ * Returns: %G_IO_STATUS_NORMAL on success.
* This function never returns %G_IO_STATUS_EOF.
**/
GIOStatus
*
* Replacement for g_io_channel_read() with the new API.
*
- * Return value: the status of the operation.
+ * Returns: the status of the operation.
*/
GIOStatus
g_io_channel_read_chars (GIOChannel *channel,
* Reads a Unicode character from @channel.
* This function cannot be called on a channel with %NULL encoding.
*
- * Return value: a #GIOStatus
+ * Returns: a #GIOStatus
**/
GIOStatus
g_io_channel_read_unichar (GIOChannel *channel,
* 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 ().
*
- * Return value: the status of the operation.
+ * Returns: the status of the operation.
**/
GIOStatus
g_io_channel_write_chars (GIOChannel *channel,
* Writes a Unicode character to @channel.
* This function cannot be called on a channel with %NULL encoding.
*
- * Return value: a #GIOStatus
+ * Returns: a #GIOStatus
**/
GIOStatus
g_io_channel_write_unichar (GIOChannel *channel,
}
/**
- * g_io_channel_error_quark:
- *
- * Return value: the quark used as %G_IO_CHANNEL_ERROR
- **/
-/**
* G_IO_CHANNEL_ERROR:
*
* Error domain for #GIOChannel operations. Errors in this domain will
projects / platform / upstream / glib.git / blobdiff