diff options
Diffstat (limited to 'girepository/gicallableinfo.c')
| -rw-r--r-- | girepository/gicallableinfo.c | 103 |
1 files changed, 99 insertions, 4 deletions
diff --git a/girepository/gicallableinfo.c b/girepository/gicallableinfo.c index 28043fa5..fec77b82 100644 --- a/girepository/gicallableinfo.c +++ b/girepository/gicallableinfo.c @@ -360,6 +360,79 @@ g_callable_info_iterate_return_attributes (GICallableInfo *info, return TRUE; } +/* Extract the correct bits from an ffi_arg return value into + * GIArgument: https://bugzilla.gnome.org/show_bug.cgi?id=665152 + * + * Also see the ffi_call man page - the storage requirements for return + * values are "special". + */ +typedef GIArgument GIFFIReturnValue; + +static void +set_gargument_from_ffi_return_value (GITypeInfo *return_info, + GIArgument *arg, + GIFFIReturnValue *ffi_value) +{ + switch (g_type_info_get_tag (return_info)) { + case GI_TYPE_TAG_INT8: + arg->v_int8 = (gint8) ffi_value->v_long; + break; + case GI_TYPE_TAG_UINT8: + arg->v_uint8 = (guint8) ffi_value->v_ulong; + break; + case GI_TYPE_TAG_INT16: + arg->v_int16 = (gint16) ffi_value->v_long; + break; + case GI_TYPE_TAG_UINT16: + arg->v_uint16 = (guint16) ffi_value->v_ulong; + break; + case GI_TYPE_TAG_INT32: + arg->v_int32 = (gint32) ffi_value->v_long; + break; + case GI_TYPE_TAG_UINT32: + case GI_TYPE_TAG_BOOLEAN: + case GI_TYPE_TAG_UNICHAR: + arg->v_uint32 = (guint32) ffi_value->v_ulong; + break; + case GI_TYPE_TAG_INT64: + arg->v_int64 = (gint64) ffi_value->v_int64; + break; + case GI_TYPE_TAG_UINT64: + arg->v_uint64 = (guint64) ffi_value->v_uint64; + break; + case GI_TYPE_TAG_FLOAT: + arg->v_float = ffi_value->v_float; + break; + case GI_TYPE_TAG_DOUBLE: + arg->v_double = ffi_value->v_double; + break; + case GI_TYPE_TAG_INTERFACE: + { + GIBaseInfo* interface_info; + GIInfoType interface_type; + + interface_info = g_type_info_get_interface(return_info); + interface_type = g_base_info_get_type(interface_info); + + switch(interface_type) { + case GI_INFO_TYPE_ENUM: + case GI_INFO_TYPE_FLAGS: + arg->v_int32 = (gint32) ffi_value->v_long; + break; + default: + arg->v_pointer = (gpointer) ffi_value->v_ulong; + break; + } + + g_base_info_unref(interface_info); + } + break; + default: + arg->v_pointer = (gpointer) ffi_value->v_ulong; + break; + } +} + gboolean _g_callable_info_invoke (GIFunctionInfo *info, gpointer function, @@ -376,16 +449,20 @@ _g_callable_info_invoke (GIFunctionInfo *info, ffi_type *rtype; ffi_type **atypes; GITypeInfo *tinfo; + GITypeInfo *rinfo; + GITypeTag rtag; GIArgInfo *ainfo; gint n_args, n_invoke_args, in_pos, out_pos, i; gpointer *args; gboolean success = FALSE; GError *local_error = NULL; gpointer error_address = &local_error; + GIFFIReturnValue ffi_return_value; + gpointer return_value_p; /* Will point inside the union return_value */ - tinfo = g_callable_info_get_return_type ((GICallableInfo *)info); - rtype = g_type_info_get_ffi_type (tinfo); - g_base_info_unref ((GIBaseInfo *)tinfo); + rinfo = g_callable_info_get_return_type ((GICallableInfo *)info); + rtype = g_type_info_get_ffi_type (rinfo); + rtag = g_type_info_get_tag(rinfo); in_pos = 0; out_pos = 0; @@ -516,7 +593,23 @@ _g_callable_info_invoke (GIFunctionInfo *info, goto out; g_return_val_if_fail (return_value, FALSE); - ffi_call (&cif, function, return_value, args); + /* See comment for GIFFIReturnValue above */ + switch (rtag) + { + case GI_TYPE_TAG_FLOAT: + return_value_p = &ffi_return_value.v_float; + break; + case GI_TYPE_TAG_DOUBLE: + return_value_p = &ffi_return_value.v_double; + break; + case GI_TYPE_TAG_INT64: + case GI_TYPE_TAG_UINT64: + return_value_p = &ffi_return_value.v_uint64; + break; + default: + return_value_p = &ffi_return_value.v_long; + } + ffi_call (&cif, function, return_value_p, args); if (local_error) { @@ -525,8 +618,10 @@ _g_callable_info_invoke (GIFunctionInfo *info, } else { + set_gargument_from_ffi_return_value(rinfo, return_value, &ffi_return_value); success = TRUE; } out: + g_base_info_unref ((GIBaseInfo *)rinfo); return success; } |