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<refentry id="gmime-gmime-stream">
<refmeta>
<refentrytitle>gmime-stream</refentrytitle>
<manvolnum>3</manvolnum>
<refmiscinfo>GMIME Library</refmiscinfo>
</refmeta>
<refnamediv>
<refname>gmime-stream</refname><refpurpose></refpurpose>
</refnamediv>
<refsynopsisdiv><title>Synopsis</title>
<anchor id="GMimeStream"/>
<synopsis>
enum <link linkend="GMimeSeekWhence">GMimeSeekWhence</link>;
<link linkend="GMimeStreamIOVector">GMimeStreamIOVector</link>;
<link linkend="GMimeStream-struct">GMimeStream</link>;
<link linkend="void">void</link> <link linkend="g-mime-stream-construct">g_mime_stream_construct</link> (<link linkend="GMimeStream">GMimeStream</link> *stream,
<link linkend="off-t">off_t</link> start,
<link linkend="off-t">off_t</link> end);
<link linkend="void">void</link> <link linkend="g-mime-stream-ref">g_mime_stream_ref</link> (<link linkend="GMimeStream">GMimeStream</link> *stream);
<link linkend="void">void</link> <link linkend="g-mime-stream-unref">g_mime_stream_unref</link> (<link linkend="GMimeStream">GMimeStream</link> *stream);
<link linkend="ssize-t">ssize_t</link> <link linkend="g-mime-stream-read">g_mime_stream_read</link> (<link linkend="GMimeStream">GMimeStream</link> *stream,
<link linkend="char">char</link> *buf,
<link linkend="size-t">size_t</link> len);
<link linkend="ssize-t">ssize_t</link> <link linkend="g-mime-stream-write">g_mime_stream_write</link> (<link linkend="GMimeStream">GMimeStream</link> *stream,
const <link linkend="char">char</link> *buf,
<link linkend="size-t">size_t</link> len);
<link linkend="int">int</link> <link linkend="g-mime-stream-flush">g_mime_stream_flush</link> (<link linkend="GMimeStream">GMimeStream</link> *stream);
<link linkend="off-t">off_t</link> <link linkend="g-mime-stream-seek">g_mime_stream_seek</link> (<link linkend="GMimeStream">GMimeStream</link> *stream,
<link linkend="off-t">off_t</link> offset,
<link linkend="GMimeSeekWhence">GMimeSeekWhence</link> whence);
<link linkend="off-t">off_t</link> <link linkend="g-mime-stream-tell">g_mime_stream_tell</link> (<link linkend="GMimeStream">GMimeStream</link> *stream);
<link linkend="int">int</link> <link linkend="g-mime-stream-reset">g_mime_stream_reset</link> (<link linkend="GMimeStream">GMimeStream</link> *stream);
<link linkend="gboolean">gboolean</link> <link linkend="g-mime-stream-eos">g_mime_stream_eos</link> (<link linkend="GMimeStream">GMimeStream</link> *stream);
<link linkend="int">int</link> <link linkend="g-mime-stream-close">g_mime_stream_close</link> (<link linkend="GMimeStream">GMimeStream</link> *stream);
<link linkend="ssize-t">ssize_t</link> <link linkend="g-mime-stream-length">g_mime_stream_length</link> (<link linkend="GMimeStream">GMimeStream</link> *stream);
<link linkend="GMimeStream">GMimeStream</link>* <link linkend="g-mime-stream-substream">g_mime_stream_substream</link> (<link linkend="GMimeStream">GMimeStream</link> *stream,
<link linkend="off-t">off_t</link> start,
<link linkend="off-t">off_t</link> end);
<link linkend="void">void</link> <link linkend="g-mime-stream-set-bounds">g_mime_stream_set_bounds</link> (<link linkend="GMimeStream">GMimeStream</link> *stream,
<link linkend="off-t">off_t</link> start,
<link linkend="off-t">off_t</link> end);
<link linkend="ssize-t">ssize_t</link> <link linkend="g-mime-stream-write-string">g_mime_stream_write_string</link> (<link linkend="GMimeStream">GMimeStream</link> *stream,
const <link linkend="char">char</link> *string);
<link linkend="ssize-t">ssize_t</link> <link linkend="g-mime-stream-printf">g_mime_stream_printf</link> (<link linkend="GMimeStream">GMimeStream</link> *stream,
const <link linkend="char">char</link> *fmt,
...);
<link linkend="ssize-t">ssize_t</link> <link linkend="g-mime-stream-write-to-stream">g_mime_stream_write_to_stream</link> (<link linkend="GMimeStream">GMimeStream</link> *src,
<link linkend="GMimeStream">GMimeStream</link> *dest);
<link linkend="ssize-t">ssize_t</link> <link linkend="g-mime-stream-writev">g_mime_stream_writev</link> (<link linkend="GMimeStream">GMimeStream</link> *stream,
<link linkend="GMimeStreamIOVector">GMimeStreamIOVector</link> *vector,
<link linkend="size-t">size_t</link> count);
</synopsis>
</refsynopsisdiv>
<refsect1>
<title>Object Hierarchy</title>
<synopsis>
<link linkend="GObject">GObject</link>
+----GMimeStream
+----<link linkend="GMimeStreamBuffer">GMimeStreamBuffer</link>
+----<link linkend="GMimeStreamCat">GMimeStreamCat</link>
+----<link linkend="GMimeStreamFile">GMimeStreamFile</link>
+----<link linkend="GMimeStreamFilter">GMimeStreamFilter</link>
+----<link linkend="GMimeStreamFs">GMimeStreamFs</link>
+----<link linkend="GMimeStreamMem">GMimeStreamMem</link>
+----<link linkend="GMimeStreamMmap">GMimeStreamMmap</link>
+----<link linkend="GMimeStreamNull">GMimeStreamNull</link>
</synopsis>
</refsect1>
<refsect1>
<title>Description</title>
<para>
</para>
</refsect1>
<refsect1>
<title>Details</title>
<refsect2>
<title><anchor id="GMimeSeekWhence"/>enum GMimeSeekWhence</title>
<indexterm><primary>GMimeSeekWhence</primary></indexterm><programlisting>typedef enum {
GMIME_STREAM_SEEK_SET = SEEK_SET,
GMIME_STREAM_SEEK_CUR = SEEK_CUR,
GMIME_STREAM_SEEK_END = SEEK_END
} GMimeSeekWhence;
</programlisting>
<para>
</para></refsect2>
<refsect2>
<title><anchor id="GMimeStreamIOVector"/>GMimeStreamIOVector</title>
<indexterm><primary>GMimeStreamIOVector</primary></indexterm><programlisting>typedef struct {
gpointer data;
size_t len;
} GMimeStreamIOVector;
</programlisting>
<para>
</para></refsect2>
<refsect2>
<title><anchor id="GMimeStream-struct"/>GMimeStream</title>
<indexterm><primary>GMimeStream</primary></indexterm><programlisting>typedef struct _GMimeStream GMimeStream;</programlisting>
<para>
</para></refsect2>
<refsect2>
<title><anchor id="g-mime-stream-construct"/>g_mime_stream_construct ()</title>
<indexterm><primary>g_mime_stream_construct</primary></indexterm><programlisting><link linkend="void">void</link> g_mime_stream_construct (<link linkend="GMimeStream">GMimeStream</link> *stream,
<link linkend="off-t">off_t</link> start,
<link linkend="off-t">off_t</link> end);</programlisting>
<para>
Initializes a new stream with bounds <parameter>start</parameter> and <parameter>end</parameter>.</para>
<para>
</para><variablelist role="params">
<varlistentry><term><parameter>stream</parameter> :</term>
<listitem><simpara> stream
</simpara></listitem></varlistentry>
<varlistentry><term><parameter>start</parameter> :</term>
<listitem><simpara> start boundary
</simpara></listitem></varlistentry>
<varlistentry><term><parameter>end</parameter> :</term>
<listitem><simpara> end boundary
</simpara></listitem></varlistentry>
</variablelist></refsect2>
<refsect2>
<title><anchor id="g-mime-stream-ref"/>g_mime_stream_ref ()</title>
<indexterm role="deprecated"><primary>g_mime_stream_ref</primary></indexterm><programlisting><link linkend="void">void</link> g_mime_stream_ref (<link linkend="GMimeStream">GMimeStream</link> *stream);</programlisting>
<warning><para><literal>g_mime_stream_ref</literal> is deprecated and should not be used in newly-written code.</para></warning>
<para>
Ref's a stream.
</para>
<para>
WARNING: This method is deprecated. Use <link linkend="g-object-ref"><type>g_object_ref</type></link> instead.</para>
<para>
</para><variablelist role="params">
<varlistentry><term><parameter>stream</parameter> :</term>
<listitem><simpara> stream
</simpara></listitem></varlistentry>
</variablelist></refsect2>
<refsect2>
<title><anchor id="g-mime-stream-unref"/>g_mime_stream_unref ()</title>
<indexterm role="deprecated"><primary>g_mime_stream_unref</primary></indexterm><programlisting><link linkend="void">void</link> g_mime_stream_unref (<link linkend="GMimeStream">GMimeStream</link> *stream);</programlisting>
<warning><para><literal>g_mime_stream_unref</literal> is deprecated and should not be used in newly-written code.</para></warning>
<para>
Unref's a stream.
</para>
<para>
WARNING: This method is deprecated. Use g_object_unref instead.</para>
<para>
</para><variablelist role="params">
<varlistentry><term><parameter>stream</parameter> :</term>
<listitem><simpara> stream
</simpara></listitem></varlistentry>
</variablelist></refsect2>
<refsect2>
<title><anchor id="g-mime-stream-read"/>g_mime_stream_read ()</title>
<indexterm><primary>g_mime_stream_read</primary></indexterm><programlisting><link linkend="ssize-t">ssize_t</link> g_mime_stream_read (<link linkend="GMimeStream">GMimeStream</link> *stream,
<link linkend="char">char</link> *buf,
<link linkend="size-t">size_t</link> len);</programlisting>
<para>
Attempts to read up to <parameter>len</parameter> bytes from <parameter>stream</parameter> into <parameter>buf</parameter>.</para>
<para>
</para><variablelist role="params">
<varlistentry><term><parameter>stream</parameter> :</term>
<listitem><simpara> stream
</simpara></listitem></varlistentry>
<varlistentry><term><parameter>buf</parameter> :</term>
<listitem><simpara> buffer
</simpara></listitem></varlistentry>
<varlistentry><term><parameter>len</parameter> :</term>
<listitem><simpara> buffer length
</simpara></listitem></varlistentry>
<varlistentry><term><emphasis>Returns</emphasis> :</term><listitem><simpara>the number of bytes read or -1 on fail.
</simpara></listitem></varlistentry>
</variablelist></refsect2>
<refsect2>
<title><anchor id="g-mime-stream-write"/>g_mime_stream_write ()</title>
<indexterm><primary>g_mime_stream_write</primary></indexterm><programlisting><link linkend="ssize-t">ssize_t</link> g_mime_stream_write (<link linkend="GMimeStream">GMimeStream</link> *stream,
const <link linkend="char">char</link> *buf,
<link linkend="size-t">size_t</link> len);</programlisting>
<para>
Attempts to write up to <parameter>len</parameter> bytes of <parameter>buf</parameter> to <parameter>stream</parameter>.</para>
<para>
</para><variablelist role="params">
<varlistentry><term><parameter>stream</parameter> :</term>
<listitem><simpara> stream
</simpara></listitem></varlistentry>
<varlistentry><term><parameter>buf</parameter> :</term>
<listitem><simpara> buffer
</simpara></listitem></varlistentry>
<varlistentry><term><parameter>len</parameter> :</term>
<listitem><simpara> buffer length
</simpara></listitem></varlistentry>
<varlistentry><term><emphasis>Returns</emphasis> :</term><listitem><simpara>the number of bytes written or -1 on fail.
</simpara></listitem></varlistentry>
</variablelist></refsect2>
<refsect2>
<title><anchor id="g-mime-stream-flush"/>g_mime_stream_flush ()</title>
<indexterm><primary>g_mime_stream_flush</primary></indexterm><programlisting><link linkend="int">int</link> g_mime_stream_flush (<link linkend="GMimeStream">GMimeStream</link> *stream);</programlisting>
<para>
Sync's the stream to disk.</para>
<para>
</para><variablelist role="params">
<varlistentry><term><parameter>stream</parameter> :</term>
<listitem><simpara> stream
</simpara></listitem></varlistentry>
<varlistentry><term><emphasis>Returns</emphasis> :</term><listitem><simpara>0 on success or -1 on fail.
</simpara></listitem></varlistentry>
</variablelist></refsect2>
<refsect2>
<title><anchor id="g-mime-stream-seek"/>g_mime_stream_seek ()</title>
<indexterm><primary>g_mime_stream_seek</primary></indexterm><programlisting><link linkend="off-t">off_t</link> g_mime_stream_seek (<link linkend="GMimeStream">GMimeStream</link> *stream,
<link linkend="off-t">off_t</link> offset,
<link linkend="GMimeSeekWhence">GMimeSeekWhence</link> whence);</programlisting>
<para>
Repositions the offset of the stream <parameter>stream</parameter> to
the argument <parameter>offset</parameter> according to the
directive <parameter>whence</parameter> as follows:
</para>
<para>
GMIME_STREAM_SEEK_SET: The offset is set to <parameter>offset</parameter> bytes.
</para>
<para>
GMIME_STREAM_SEEK_CUR: The offset is set to its current
location plus <parameter>offset</parameter> bytes.
</para>
<para>
GMIME_STREAM_SEEK_END: The offset is set to the size of the
stream plus <parameter>offset</parameter> bytes.</para>
<para>
</para><variablelist role="params">
<varlistentry><term><parameter>stream</parameter> :</term>
<listitem><simpara> stream
</simpara></listitem></varlistentry>
<varlistentry><term><parameter>offset</parameter> :</term>
<listitem><simpara> positional offset
</simpara></listitem></varlistentry>
<varlistentry><term><parameter>whence</parameter> :</term>
<listitem><simpara> seek directive
</simpara></listitem></varlistentry>
<varlistentry><term><emphasis>Returns</emphasis> :</term><listitem><simpara>the resultant position on success or -1 on fail.
</simpara></listitem></varlistentry>
</variablelist></refsect2>
<refsect2>
<title><anchor id="g-mime-stream-tell"/>g_mime_stream_tell ()</title>
<indexterm><primary>g_mime_stream_tell</primary></indexterm><programlisting><link linkend="off-t">off_t</link> g_mime_stream_tell (<link linkend="GMimeStream">GMimeStream</link> *stream);</programlisting>
<para>
Gets the current offset within the stream.</para>
<para>
</para><variablelist role="params">
<varlistentry><term><parameter>stream</parameter> :</term>
<listitem><simpara> stream
</simpara></listitem></varlistentry>
<varlistentry><term><emphasis>Returns</emphasis> :</term><listitem><simpara>the current position within the stream or -1 on fail.
</simpara></listitem></varlistentry>
</variablelist></refsect2>
<refsect2>
<title><anchor id="g-mime-stream-reset"/>g_mime_stream_reset ()</title>
<indexterm><primary>g_mime_stream_reset</primary></indexterm><programlisting><link linkend="int">int</link> g_mime_stream_reset (<link linkend="GMimeStream">GMimeStream</link> *stream);</programlisting>
<para>
Resets the stream.</para>
<para>
</para><variablelist role="params">
<varlistentry><term><parameter>stream</parameter> :</term>
<listitem><simpara> stream
</simpara></listitem></varlistentry>
<varlistentry><term><emphasis>Returns</emphasis> :</term><listitem><simpara>0 on success or -1 on fail.
</simpara></listitem></varlistentry>
</variablelist></refsect2>
<refsect2>
<title><anchor id="g-mime-stream-eos"/>g_mime_stream_eos ()</title>
<indexterm><primary>g_mime_stream_eos</primary></indexterm><programlisting><link linkend="gboolean">gboolean</link> g_mime_stream_eos (<link linkend="GMimeStream">GMimeStream</link> *stream);</programlisting>
<para>
Tests the end-of-stream indicator for <parameter>stream</parameter>.</para>
<para>
</para><variablelist role="params">
<varlistentry><term><parameter>stream</parameter> :</term>
<listitem><simpara> stream
</simpara></listitem></varlistentry>
<varlistentry><term><emphasis>Returns</emphasis> :</term><listitem><simpara><literal>TRUE</literal> on EOS or <literal>FALSE</literal> otherwise.
</simpara></listitem></varlistentry>
</variablelist></refsect2>
<refsect2>
<title><anchor id="g-mime-stream-close"/>g_mime_stream_close ()</title>
<indexterm><primary>g_mime_stream_close</primary></indexterm><programlisting><link linkend="int">int</link> g_mime_stream_close (<link linkend="GMimeStream">GMimeStream</link> *stream);</programlisting>
<para>
Closes the stream.</para>
<para>
</para><variablelist role="params">
<varlistentry><term><parameter>stream</parameter> :</term>
<listitem><simpara> stream
</simpara></listitem></varlistentry>
<varlistentry><term><emphasis>Returns</emphasis> :</term><listitem><simpara>0 on success or -1 on fail.
</simpara></listitem></varlistentry>
</variablelist></refsect2>
<refsect2>
<title><anchor id="g-mime-stream-length"/>g_mime_stream_length ()</title>
<indexterm><primary>g_mime_stream_length</primary></indexterm><programlisting><link linkend="ssize-t">ssize_t</link> g_mime_stream_length (<link linkend="GMimeStream">GMimeStream</link> *stream);</programlisting>
<para>
Gets the length of the stream.</para>
<para>
</para><variablelist role="params">
<varlistentry><term><parameter>stream</parameter> :</term>
<listitem><simpara> stream
</simpara></listitem></varlistentry>
<varlistentry><term><emphasis>Returns</emphasis> :</term><listitem><simpara>the length of the stream or -1 on fail.
</simpara></listitem></varlistentry>
</variablelist></refsect2>
<refsect2>
<title><anchor id="g-mime-stream-substream"/>g_mime_stream_substream ()</title>
<indexterm><primary>g_mime_stream_substream</primary></indexterm><programlisting><link linkend="GMimeStream">GMimeStream</link>* g_mime_stream_substream (<link linkend="GMimeStream">GMimeStream</link> *stream,
<link linkend="off-t">off_t</link> start,
<link linkend="off-t">off_t</link> end);</programlisting>
<para>
Creates a new substream of <parameter>stream</parameter> with bounds <parameter>start</parameter> and <parameter>end</parameter>.</para>
<para>
</para><variablelist role="params">
<varlistentry><term><parameter>stream</parameter> :</term>
<listitem><simpara> stream
</simpara></listitem></varlistentry>
<varlistentry><term><parameter>start</parameter> :</term>
<listitem><simpara> start boundary
</simpara></listitem></varlistentry>
<varlistentry><term><parameter>end</parameter> :</term>
<listitem><simpara> end boundary
</simpara></listitem></varlistentry>
<varlistentry><term><emphasis>Returns</emphasis> :</term><listitem><simpara>a substream of <parameter>stream</parameter> with bounds <parameter>start</parameter> and <parameter>end</parameter>.
</simpara></listitem></varlistentry>
</variablelist></refsect2>
<refsect2>
<title><anchor id="g-mime-stream-set-bounds"/>g_mime_stream_set_bounds ()</title>
<indexterm><primary>g_mime_stream_set_bounds</primary></indexterm><programlisting><link linkend="void">void</link> g_mime_stream_set_bounds (<link linkend="GMimeStream">GMimeStream</link> *stream,
<link linkend="off-t">off_t</link> start,
<link linkend="off-t">off_t</link> end);</programlisting>
<para>
Set the bounds on a stream.</para>
<para>
</para><variablelist role="params">
<varlistentry><term><parameter>stream</parameter> :</term>
<listitem><simpara> stream
</simpara></listitem></varlistentry>
<varlistentry><term><parameter>start</parameter> :</term>
<listitem><simpara> start boundary
</simpara></listitem></varlistentry>
<varlistentry><term><parameter>end</parameter> :</term>
<listitem><simpara> end boundary
</simpara></listitem></varlistentry>
</variablelist></refsect2>
<refsect2>
<title><anchor id="g-mime-stream-write-string"/>g_mime_stream_write_string ()</title>
<indexterm><primary>g_mime_stream_write_string</primary></indexterm><programlisting><link linkend="ssize-t">ssize_t</link> g_mime_stream_write_string (<link linkend="GMimeStream">GMimeStream</link> *stream,
const <link linkend="char">char</link> *string);</programlisting>
<para>
Writes <parameter>string</parameter> to <parameter>stream</parameter>.</para>
<para>
</para><variablelist role="params">
<varlistentry><term><parameter>stream</parameter> :</term>
<listitem><simpara> stream
</simpara></listitem></varlistentry>
<varlistentry><term><parameter>string</parameter> :</term>
<listitem><simpara> string to write
</simpara></listitem></varlistentry>
<varlistentry><term><emphasis>Returns</emphasis> :</term><listitem><simpara>the number of bytes written or -1 on fail.
</simpara></listitem></varlistentry>
</variablelist></refsect2>
<refsect2>
<title><anchor id="g-mime-stream-printf"/>g_mime_stream_printf ()</title>
<indexterm><primary>g_mime_stream_printf</primary></indexterm><programlisting><link linkend="ssize-t">ssize_t</link> g_mime_stream_printf (<link linkend="GMimeStream">GMimeStream</link> *stream,
const <link linkend="char">char</link> *fmt,
...);</programlisting>
<para>
Write formatted output to a stream.</para>
<para>
</para><variablelist role="params">
<varlistentry><term><parameter>stream</parameter> :</term>
<listitem><simpara> stream
</simpara></listitem></varlistentry>
<varlistentry><term><parameter>fmt</parameter> :</term>
<listitem><simpara> format
</simpara></listitem></varlistentry>
<varlistentry><term><parameter>...</parameter> :</term>
<listitem><simpara> arguments
</simpara></listitem></varlistentry>
<varlistentry><term><emphasis>Returns</emphasis> :</term><listitem><simpara>the number of bytes written or -1 on fail.
</simpara></listitem></varlistentry>
</variablelist></refsect2>
<refsect2>
<title><anchor id="g-mime-stream-write-to-stream"/>g_mime_stream_write_to_stream ()</title>
<indexterm><primary>g_mime_stream_write_to_stream</primary></indexterm><programlisting><link linkend="ssize-t">ssize_t</link> g_mime_stream_write_to_stream (<link linkend="GMimeStream">GMimeStream</link> *src,
<link linkend="GMimeStream">GMimeStream</link> *dest);</programlisting>
<para>
Attempts to write stream <parameter>src</parameter> to stream <parameter>dest</parameter>.</para>
<para>
</para><variablelist role="params">
<varlistentry><term><parameter>src</parameter> :</term>
<listitem><simpara> source stream
</simpara></listitem></varlistentry>
<varlistentry><term><parameter>dest</parameter> :</term>
<listitem><simpara> destination stream
</simpara></listitem></varlistentry>
<varlistentry><term><emphasis>Returns</emphasis> :</term><listitem><simpara>the number of bytes written or -1 on fail.
</simpara></listitem></varlistentry>
</variablelist></refsect2>
<refsect2>
<title><anchor id="g-mime-stream-writev"/>g_mime_stream_writev ()</title>
<indexterm><primary>g_mime_stream_writev</primary></indexterm><programlisting><link linkend="ssize-t">ssize_t</link> g_mime_stream_writev (<link linkend="GMimeStream">GMimeStream</link> *stream,
<link linkend="GMimeStreamIOVector">GMimeStreamIOVector</link> *vector,
<link linkend="size-t">size_t</link> count);</programlisting>
<para>
Writes at most <parameter>count</parameter> blocks described by <parameter>vector</parameter> to <parameter>stream</parameter>.</para>
<para>
</para><variablelist role="params">
<varlistentry><term><parameter>stream</parameter> :</term>
<listitem><simpara> stream
</simpara></listitem></varlistentry>
<varlistentry><term><parameter>vector</parameter> :</term>
<listitem><simpara> i/o vector
</simpara></listitem></varlistentry>
<varlistentry><term><parameter>count</parameter> :</term>
<listitem><simpara> number of vector elements
</simpara></listitem></varlistentry>
<varlistentry><term><emphasis>Returns</emphasis> :</term><listitem><simpara>the number of bytes written or -1 on fail.
</simpara></listitem></varlistentry>
</variablelist></refsect2>
</refsect1>
</refentry>
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