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glib/ginvoke.c
Chun-wei Fan adc6f08ff7 girepository: Include config.h First in All Sources 
This includes config.h in all the C-sources of girepository so that we can
get the correct export directive from config.h during compile time and
therefore export the symbols as necessary, like what GLib and GTK+ is
currently doing.

https://bugzilla.gnome.org/show_bug.cgi?id=732669
2014-07-07 09:24:12 +08:00

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/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*-
* GObject introspection: Invoke functionality
*
* Copyright (C) 2005 Matthias Clasen
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser 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
* 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.
*/
#include "config.h"
#include <stdlib.h>
#include <glib.h>
#include <glib-object.h>
#include <girepository.h>
#include "girffi.h"
/**
* value_to_ffi_type:
* @gvalue: TODO
* @value: TODO
*
* TODO
*/
static ffi_type *
value_to_ffi_type (const GValue *gvalue, gpointer *value)
{
ffi_type *rettype = NULL;
GType type = g_type_fundamental (G_VALUE_TYPE (gvalue));
g_assert (type != G_TYPE_INVALID);
switch (type)
{
case G_TYPE_BOOLEAN:
case G_TYPE_CHAR:
case G_TYPE_INT:
rettype = &ffi_type_sint;
*value = (gpointer)&(gvalue->data[0].v_int);
break;
case G_TYPE_UCHAR:
case G_TYPE_UINT:
rettype = &ffi_type_uint;
*value = (gpointer)&(gvalue->data[0].v_uint);
break;
case G_TYPE_STRING:
case G_TYPE_OBJECT:
case G_TYPE_BOXED:
case G_TYPE_POINTER:
case G_TYPE_PARAM:
rettype = &ffi_type_pointer;
*value = (gpointer)&(gvalue->data[0].v_pointer);
break;
case G_TYPE_FLOAT:
rettype = &ffi_type_float;
*value = (gpointer)&(gvalue->data[0].v_float);
break;
case G_TYPE_DOUBLE:
rettype = &ffi_type_double;
*value = (gpointer)&(gvalue->data[0].v_double);
break;
case G_TYPE_LONG:
rettype = &ffi_type_slong;
*value = (gpointer)&(gvalue->data[0].v_long);
break;
case G_TYPE_ULONG:
rettype = &ffi_type_ulong;
*value = (gpointer)&(gvalue->data[0].v_ulong);
break;
case G_TYPE_INT64:
rettype = &ffi_type_sint64;
*value = (gpointer)&(gvalue->data[0].v_int64);
break;
case G_TYPE_UINT64:
rettype = &ffi_type_uint64;
*value = (gpointer)&(gvalue->data[0].v_uint64);
break;
default:
rettype = &ffi_type_pointer;
*value = NULL;
g_warning ("Unsupported fundamental type: %s", g_type_name (type));
break;
}
return rettype;
}
/**
* g_value_to_ffi_return_type:
* @gvalue: TODO
* @ffi_value: TODO
* @value: TODO
*
* TODO
*/
static ffi_type *
g_value_to_ffi_return_type (const GValue *gvalue,
const GIArgument *ffi_value,
gpointer *value)
{
ffi_type *rettype = NULL;
GType type = g_type_fundamental (G_VALUE_TYPE (gvalue));
g_assert (type != G_TYPE_INVALID);
*value = (gpointer)&(ffi_value->v_long);
switch (type) {
case G_TYPE_CHAR:
rettype = &ffi_type_sint8;
break;
case G_TYPE_UCHAR:
rettype = &ffi_type_uint8;
break;
case G_TYPE_BOOLEAN:
case G_TYPE_INT:
rettype = &ffi_type_sint;
break;
case G_TYPE_UINT:
rettype = &ffi_type_uint;
break;
case G_TYPE_STRING:
case G_TYPE_OBJECT:
case G_TYPE_BOXED:
case G_TYPE_POINTER:
case G_TYPE_PARAM:
rettype = &ffi_type_pointer;
break;
case G_TYPE_FLOAT:
rettype = &ffi_type_float;
*value = (gpointer)&(ffi_value->v_float);
break;
case G_TYPE_DOUBLE:
rettype = &ffi_type_double;
*value = (gpointer)&(ffi_value->v_double);
break;
case G_TYPE_LONG:
rettype = &ffi_type_slong;
break;
case G_TYPE_ULONG:
rettype = &ffi_type_ulong;
break;
case G_TYPE_INT64:
rettype = &ffi_type_sint64;
*value = (gpointer)&(ffi_value->v_int64);
break;
case G_TYPE_UINT64:
rettype = &ffi_type_uint64;
*value = (gpointer)&(ffi_value->v_uint64);
break;
default:
rettype = &ffi_type_pointer;
*value = NULL;
g_warning ("Unsupported fundamental type: %s", g_type_name (type));
break;
}
return rettype;
}
/**
* g_value_from_ffi_value:
* @gvalue: TODO
* @value: TODO
*
* TODO
*/
static void
g_value_from_ffi_value (GValue *gvalue,
const GIArgument *value)
{
switch (g_type_fundamental (G_VALUE_TYPE (gvalue))) {
case G_TYPE_INT:
g_value_set_int (gvalue, (gint)value->v_long);
break;
case G_TYPE_FLOAT:
g_value_set_float (gvalue, (gfloat)value->v_float);
break;
case G_TYPE_DOUBLE:
g_value_set_double (gvalue, (gdouble)value->v_double);
break;
case G_TYPE_BOOLEAN:
g_value_set_boolean (gvalue, (gboolean)value->v_long);
break;
case G_TYPE_STRING:
g_value_set_string (gvalue, (gchar*)value->v_pointer);
break;
case G_TYPE_CHAR:
g_value_set_schar (gvalue, (gchar)value->v_long);
break;
case G_TYPE_UCHAR:
g_value_set_uchar (gvalue, (guchar)value->v_ulong);
break;
case G_TYPE_UINT:
g_value_set_uint (gvalue, (guint)value->v_ulong);
break;
case G_TYPE_POINTER:
g_value_set_pointer (gvalue, (gpointer)value->v_pointer);
break;
case G_TYPE_LONG:
g_value_set_long (gvalue, (glong)value->v_long);
break;
case G_TYPE_ULONG:
g_value_set_ulong (gvalue, (gulong)value->v_ulong);
break;
case G_TYPE_INT64:
g_value_set_int64 (gvalue, (gint64)value->v_int64);
break;
case G_TYPE_UINT64:
g_value_set_uint64 (gvalue, (guint64)value->v_uint64);
break;
case G_TYPE_BOXED:
g_value_set_boxed (gvalue, (gpointer)value->v_pointer);
break;
case G_TYPE_PARAM:
g_value_set_param (gvalue, (gpointer)value->v_pointer);
break;
default:
g_warning ("Unsupported fundamental type: %s",
g_type_name (g_type_fundamental (G_VALUE_TYPE (gvalue))));
}
}
/**
* gi_cclosure_marshal_generic:
* @closure: TODO
* @return_gvalue: TODO
* @n_param_values: TODO
* @param_values: TODO
* @invocation_hint: TODO
* @marshal_data: TODO
*
* TODO
*/
void
gi_cclosure_marshal_generic (GClosure *closure,
GValue *return_gvalue,
guint n_param_values,
const GValue *param_values,
gpointer invocation_hint,
gpointer marshal_data)
{
GIArgument return_ffi_value;
ffi_type *rtype;
void *rvalue;
int n_args;
ffi_type **atypes;
void **args;
int i;
ffi_cif cif;
GCClosure *cc = (GCClosure*) closure;
if (return_gvalue && G_VALUE_TYPE (return_gvalue))
{
rtype = g_value_to_ffi_return_type (return_gvalue, &return_ffi_value,
&rvalue);
}
else
{
rtype = &ffi_type_void;
rvalue = &return_ffi_value.v_long;
}
n_args = n_param_values + 1;
atypes = g_alloca (sizeof (ffi_type *) * n_args);
args = g_alloca (sizeof (gpointer) * n_args);
if (n_param_values > 0)
{
if (G_CCLOSURE_SWAP_DATA (closure))
{
atypes[n_args-1] = value_to_ffi_type (param_values + 0,
&args[n_args-1]);
atypes[0] = &ffi_type_pointer;
args[0] = &closure->data;
}
else
{
atypes[0] = value_to_ffi_type (param_values + 0, &args[0]);
atypes[n_args-1] = &ffi_type_pointer;
args[n_args-1] = &closure->data;
}
}
else
{
atypes[0] = &ffi_type_pointer;
args[0] = &closure->data;
}
for (i = 1; i < n_args - 1; i++)
atypes[i] = value_to_ffi_type (param_values + i, &args[i]);
if (ffi_prep_cif (&cif, FFI_DEFAULT_ABI, n_args, rtype, atypes) != FFI_OK)
return;
ffi_call (&cif, marshal_data ? marshal_data : cc->callback, rvalue, args);
if (return_gvalue && G_VALUE_TYPE (return_gvalue))
g_value_from_ffi_value (return_gvalue, &return_ffi_value);
}
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