mirror of
https://gitlab.gnome.org/GNOME/glib.git
synced 2025-11-04 01:58:54 +01:00
348 lines
8.9 KiB
XML
348 lines
8.9 KiB
XML
<refentry id="glib-genmarshal">
|
|
|
|
<refmeta>
|
|
<refentrytitle>glib-genmarshal</refentrytitle>
|
|
<manvolnum>1</manvolnum>
|
|
</refmeta>
|
|
|
|
<refnamediv>
|
|
<refname>glib-genmarshal</refname>
|
|
<refpurpose>C code marshaller generation utility for GLib closures</refpurpose>
|
|
</refnamediv>
|
|
|
|
<refsynopsisdiv>
|
|
<cmdsynopsis>
|
|
<command>glib-genmarshal</command>
|
|
<arg choice="opt" rep="repeat">options</arg>
|
|
<arg choice="opt" rep="repeat">files</arg>
|
|
</cmdsynopsis>
|
|
</refsynopsisdiv>
|
|
|
|
<refsect1><title>Description</title>
|
|
<para><command>glib-genmarshal</command> is a small utility that generates C code
|
|
marshallers for callback functions of the GClosure mechanism in the GObject
|
|
sublibrary of GLib. The marshaller functions have a standard signature,
|
|
they get passed in the invoking closure, an array of value structures holding
|
|
the callback function parameters and a value structure for the return value
|
|
of the callback. The marshaller is then responsible to call the respective C
|
|
code function of the closure with all the parameters on the stack and to
|
|
collect its return value.
|
|
</para>
|
|
</refsect1>
|
|
|
|
<refsect1><title>Invocation</title>
|
|
<para><command>glib-genmarshal</command> takes a list of marshallers to generate as
|
|
input. The marshaller list is either read from standard input or from files
|
|
passed as additional arguments on the command line.
|
|
</para>
|
|
|
|
<refsect2><title>Options</title>
|
|
<variablelist>
|
|
|
|
<varlistentry>
|
|
<term><option>--header</option></term>
|
|
<listitem><para>
|
|
Generate header file contents of the marshallers.
|
|
</para></listitem>
|
|
</varlistentry>
|
|
|
|
<varlistentry>
|
|
<term><option>--body</option></term>
|
|
<listitem><para>
|
|
Generate C code file contents of the marshallers.
|
|
</para></listitem>
|
|
</varlistentry>
|
|
|
|
<varlistentry>
|
|
<term><option>--prefix=string</option>, <option>--prefix string</option></term>
|
|
<listitem><para>
|
|
Specify marshaller prefix. The default prefix is <literal>`g_cclosure_marshal'</literal>.
|
|
</para></listitem>
|
|
</varlistentry>
|
|
|
|
<varlistentry>
|
|
<term><option>--skip-source</option></term>
|
|
<listitem><para>
|
|
Skip source location remarks in generated comments.
|
|
</para></listitem>
|
|
</varlistentry>
|
|
|
|
<varlistentry>
|
|
<term><option>--nostdinc</option></term>
|
|
<listitem><para>
|
|
Do not use the standard marshallers of the GObject library, and skip
|
|
<filename>gmarshal.h</filename> include directive in generated header files.
|
|
</para></listitem>
|
|
</varlistentry>
|
|
|
|
<varlistentry>
|
|
<term><option>--g-fatal-warnings</option></term>
|
|
<listitem><para>
|
|
Make warnings fatal, that is, exit immediately once a warning occurs.
|
|
</para></listitem>
|
|
</varlistentry>
|
|
|
|
<varlistentry>
|
|
<term><option>-h</option>, <option>--help</option></term>
|
|
<listitem><para>
|
|
Print brief help and exit.
|
|
</para></listitem>
|
|
</varlistentry>
|
|
|
|
<varlistentry>
|
|
<term><option>-v</option>, <option>--version</option></term>
|
|
<listitem><para>
|
|
Print version and exit.
|
|
</para></listitem>
|
|
</varlistentry>
|
|
|
|
</variablelist>
|
|
</refsect2>
|
|
|
|
<refsect2><title>Marshaller list format</title>
|
|
<para>
|
|
The marshaller lists are processed line by line, a line can contain a
|
|
comment in the form of
|
|
<programlisting>
|
|
# this is a comment
|
|
</programlisting>
|
|
or a marshaller specification of the form
|
|
<programlisting>
|
|
<replaceable>RTYPE</replaceable>:<replaceable>PTYPE</replaceable>
|
|
<replaceable>RTYPE</replaceable>:<replaceable>PTYPE</replaceable>,<replaceable>PTYPE</replaceable>
|
|
<replaceable>RTYPE</replaceable>:<replaceable>PTYPE</replaceable>,<replaceable>PTYPE</replaceable>,<replaceable>PTYPE</replaceable>
|
|
</programlisting>
|
|
(up to 16 <replaceable>PTYPE</replaceable>s may be present).
|
|
</para>
|
|
<para>
|
|
The <replaceable>RTYPE</replaceable> part specifies the callback's return
|
|
type and the <replaceable>PTYPE</replaceable>s right to the colon specify
|
|
the callback's parameter list, except for the first and the last arguments
|
|
which are always pointers.
|
|
</para>
|
|
</refsect2>
|
|
<refsect2><title>Parameter types</title>
|
|
<para>
|
|
Currently, the following types are supported:
|
|
<variablelist>
|
|
<varlistentry>
|
|
<term><replaceable>VOID</replaceable></term>
|
|
<listitem><para>
|
|
indicates no return type, or no extra parameters.
|
|
If <replaceable>VOID</replaceable> is used as the parameter list, no
|
|
additional parameters may be present.
|
|
</para></listitem>
|
|
</varlistentry>
|
|
|
|
<varlistentry>
|
|
<term><replaceable>BOOLEAN</replaceable></term>
|
|
<listitem><para>
|
|
for boolean types (gboolean)
|
|
</para></listitem>
|
|
</varlistentry>
|
|
|
|
<varlistentry>
|
|
<term><replaceable>CHAR</replaceable></term>
|
|
<listitem><para>
|
|
for signed char types (gchar)
|
|
</para></listitem>
|
|
</varlistentry>
|
|
|
|
<varlistentry>
|
|
<term><replaceable>UCHAR</replaceable></term>
|
|
<listitem><para>
|
|
for unsigned char types (guchar)
|
|
</para></listitem>
|
|
</varlistentry>
|
|
|
|
<varlistentry>
|
|
<term><replaceable>INT</replaceable></term>
|
|
<listitem><para>
|
|
for signed integer types (gint)
|
|
</para></listitem>
|
|
</varlistentry>
|
|
|
|
<varlistentry>
|
|
<term><replaceable>UINT</replaceable></term>
|
|
<listitem><para>
|
|
for unsigned integer types (guint)
|
|
</para></listitem>
|
|
</varlistentry>
|
|
|
|
<varlistentry>
|
|
<term><replaceable>LONG</replaceable></term>
|
|
<listitem><para>
|
|
for signed long integer types (glong)
|
|
</para></listitem>
|
|
</varlistentry>
|
|
|
|
<varlistentry>
|
|
<term><replaceable>ULONG</replaceable></term>
|
|
<listitem><para>
|
|
for unsigned long integer types (gulong)
|
|
</para></listitem>
|
|
</varlistentry>
|
|
|
|
<varlistentry>
|
|
<term><replaceable>INT64</replaceable></term>
|
|
<listitem><para>
|
|
for signed 64bit integer types (gint64)
|
|
</para></listitem>
|
|
</varlistentry>
|
|
|
|
<varlistentry>
|
|
<term><replaceable>UINT64</replaceable></term>
|
|
<listitem><para>
|
|
for unsigned 64bit integer types (guint64)
|
|
</para></listitem>
|
|
</varlistentry>
|
|
|
|
<varlistentry>
|
|
<term><replaceable>ENUM</replaceable></term>
|
|
<listitem><para>
|
|
for enumeration types (gint)
|
|
</para></listitem>
|
|
</varlistentry>
|
|
|
|
<varlistentry>
|
|
<term><replaceable>FLAGS</replaceable></term>
|
|
<listitem><para>
|
|
for flag enumeration types (guint)
|
|
</para></listitem>
|
|
</varlistentry>
|
|
|
|
<varlistentry>
|
|
<term><replaceable>FLOAT</replaceable></term>
|
|
<listitem><para>
|
|
for single-precision float types (gfloat)
|
|
</para></listitem>
|
|
</varlistentry>
|
|
|
|
<varlistentry>
|
|
<term><replaceable>DOUBLE</replaceable></term>
|
|
<listitem><para>
|
|
for double-precision float types (gdouble)
|
|
</para></listitem>
|
|
</varlistentry>
|
|
|
|
<varlistentry>
|
|
<term><replaceable>STRING</replaceable></term>
|
|
<listitem><para>
|
|
for string types (gchar*)
|
|
</para></listitem>
|
|
</varlistentry>
|
|
|
|
<varlistentry>
|
|
<term><replaceable>BOXED</replaceable></term>
|
|
<listitem><para>
|
|
for boxed (anonymous but reference counted) types (GBoxed*)
|
|
</para></listitem>
|
|
</varlistentry>
|
|
|
|
<varlistentry>
|
|
<term><replaceable>PARAM</replaceable></term>
|
|
<listitem><para>
|
|
for GParamSpec or derived types (GParamSpec*)
|
|
</para></listitem>
|
|
</varlistentry>
|
|
|
|
<varlistentry>
|
|
<term><replaceable>POINTER</replaceable></term>
|
|
<listitem><para>
|
|
for anonymous pointer types (gpointer)
|
|
</para></listitem>
|
|
</varlistentry>
|
|
|
|
<varlistentry>
|
|
<term><replaceable>OBJECT</replaceable></term>
|
|
<listitem><para>
|
|
for GObject or derived types (GObject*)
|
|
</para></listitem>
|
|
</varlistentry>
|
|
|
|
<varlistentry>
|
|
<term><replaceable>NONE</replaceable></term>
|
|
<listitem><para>
|
|
deprecated alias for <replaceable>VOID</replaceable>
|
|
</para></listitem>
|
|
</varlistentry>
|
|
|
|
<varlistentry>
|
|
<term><replaceable>BOOL</replaceable></term>
|
|
<listitem><para>
|
|
deprecated alias for <replaceable>BOOLEAN</replaceable>
|
|
</para></listitem>
|
|
</varlistentry>
|
|
</variablelist>
|
|
</para>
|
|
</refsect2>
|
|
</refsect1>
|
|
<refsect1><title>Example</title>
|
|
<para>
|
|
To generate marshallers for the following callback functions:
|
|
</para>
|
|
<programlisting>
|
|
void foo (gpointer data1,
|
|
gpointer data2);
|
|
void bar (gpointer data1,
|
|
gint param1,
|
|
gpointer data2);
|
|
gfloat baz (gpointer data1,
|
|
gboolean param1,
|
|
guchar param2,
|
|
gpointer data2);
|
|
</programlisting>
|
|
<para>
|
|
The marshaller list has to look like this:
|
|
</para>
|
|
<programlisting>
|
|
VOID:VOID
|
|
VOID:INT
|
|
FLOAT:BOOLEAN,UCHAR
|
|
</programlisting>
|
|
<para>
|
|
The generated marshallers have the arguments encoded in their function name.
|
|
For this particular list, they are
|
|
</para>
|
|
<programlisting>
|
|
g_cclosure_marshal_VOID__VOID(),
|
|
g_cclosure_marshal_VOID__INT(),
|
|
g_cclosure_marshal_FLOAT__BOOLEAN_UCHAR().
|
|
</programlisting>
|
|
<para>
|
|
They can be used directly for GClosures or be passed in as the
|
|
GSignalCMarshaller c_marshaller; argument upon creation of signals:
|
|
</para>
|
|
<programlisting>
|
|
GClosure *cc_foo, *cc_bar, *cc_baz;
|
|
|
|
cc_foo = g_cclosure_new (NULL, foo, NULL);
|
|
g_closure_set_marshal (cc_foo, g_cclosure_marshal_VOID__VOID);
|
|
cc_bar = g_cclosure_new (NULL, bar, NULL);
|
|
g_closure_set_marshal (cc_bar, g_cclosure_marshal_VOID__INT);
|
|
cc_baz = g_cclosure_new (NULL, baz, NULL);
|
|
g_closure_set_marshal (cc_baz, g_cclosure_marshal_FLOAT__BOOLEAN_UCHAR);
|
|
</programlisting>
|
|
</refsect1>
|
|
<refsect1><title>See also</title>
|
|
<para>
|
|
<command>glib-mkenums</command>(1)
|
|
</para>
|
|
</refsect1>
|
|
<refsect1><title>Bugs</title>
|
|
<para>
|
|
None known yet.
|
|
</para>
|
|
</refsect1>
|
|
<refsect1><title>Author</title>
|
|
<para><command>glib-genmarshal</command> has been written by Tim Janik
|
|
<email>timj@gtk.org</email>.
|
|
</para>
|
|
<para>
|
|
This manual page was provided by Tim Janik <email>timj@gtk.org</email>.
|
|
</para>
|
|
</refsect1>
|
|
</refentry>
|
|
|
|
|