src/bindings/python/bt2/bt2/native_bt_component.i

   1 /*
   2  * The MIT License (MIT)
   3  *
   4  * Copyright (c) 2017 Philippe Proulx <pproulx@efficios.com>
   5  *
   6  * Permission is hereby granted, free of charge, to any person obtaining a copy
   7  * of this software and associated documentation files (the "Software"), to deal
   8  * in the Software without restriction, including without limitation the rights
   9  * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  10  * copies of the Software, and to permit persons to whom the Software is
  11  * furnished to do so, subject to the following conditions:
  12  *
  13  * The above copyright notice and this permission notice shall be included in
  14  * all copies or substantial portions of the Software.
  15  *
  16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  17  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  18  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  19  * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  20  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  21  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  22  * THE SOFTWARE.
  23  */
  24
  25 /* Output argument typemap for self port output (always appends) */
  26 %typemap(in, numinputs=0)
  27         (bt_self_component_port_input **)
  28         (bt_self_component_port_input *temp_self_port = NULL) {
  29         $1 = &temp_self_port;
  30 }
  31
  32 %typemap(argout) bt_self_component_port_input ** {
  33         if (*$1) {
  34                 /* SWIG_Python_AppendOutput() steals the created object */
  35                 $result = SWIG_Python_AppendOutput($result,
  36                                 SWIG_NewPointerObj(SWIG_as_voidptr(*$1),
  37                                         SWIGTYPE_p_bt_self_component_port_input, 0));
  38         } else {
  39                 /* SWIG_Python_AppendOutput() steals Py_None */
  40                 Py_INCREF(Py_None);
  41                 $result = SWIG_Python_AppendOutput($result, Py_None);
  42         }
  43 }
  44
  45 /* Output argument typemap for self port output (always appends) */
  46 %typemap(in, numinputs=0)
  47         (bt_self_component_port_output **)
  48         (bt_self_component_port_output *temp_self_port = NULL) {
  49         $1 = &temp_self_port;
  50 }
  51
  52 %typemap(argout) (bt_self_component_port_output **) {
  53         if (*$1) {
  54                 /* SWIG_Python_AppendOutput() steals the created object */
  55                 $result = SWIG_Python_AppendOutput($result,
  56                                 SWIG_NewPointerObj(SWIG_as_voidptr(*$1),
  57                                         SWIGTYPE_p_bt_self_component_port_output, 0));
  58         } else {
  59                 /* SWIG_Python_AppendOutput() steals Py_None */
  60                 Py_INCREF(Py_None);
  61                 $result = SWIG_Python_AppendOutput($result, Py_None);
  62         }
  63 }
  64
  65 /* Typemaps used for user data attached to self component ports. */
  66
  67 /*
  68  * The user data Python object is kept as the user data of the port, we pass
  69  * the PyObject pointer directly to the port creation function.
  70  */
  71 %typemap(in) void *user_data {
  72         $1 = $input;
  73 }
  74
  75 /*
  76  * The port, if created successfully, now owns a reference to the Python object,
  77  * we reflect that here.
  78  */
  79 %typemap(argout) void *user_data {
  80         if (PyLong_AsLong($result) == __BT_FUNC_STATUS_OK) {
  81                 Py_INCREF($1);
  82         }
  83 }
  84
  85 %include <babeltrace2/graph/component.h>
  86 %include <babeltrace2/graph/self-component.h>
  87
  88 /*
  89  * This type map relies on the rather common "user_data" name, so don't pollute
  90  * the typemap namespace.
  91  */
  92 %clear void *user_data;