module_sigrokdecode.c

   1 /*
   2  * This file is part of the libsigrokdecode project.
   3  *
   4  * Copyright (C) 2012 Bert Vermeulen <bert@biot.com>
   5  *
   6  * This program is free software: you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation, either version 3 of the License, or
   9  * (at your option) any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  18  */
  19
  20 #include <config.h>
  21 #include "libsigrokdecode-internal.h" /* First, so we avoid a _POSIX_C_SOURCE warning. */
  22 #include "libsigrokdecode.h"
  23
  24 /** @cond PRIVATE */
  25
  26 /*
  27  * When initialized, a reference to this module inside the Python interpreter
  28  * lives here.
  29  */
  30 SRD_PRIV PyObject *mod_sigrokdecode = NULL;
  31
  32 /** @endcond */
  33
  34 static struct PyModuleDef sigrokdecode_module = {
  35         PyModuleDef_HEAD_INIT,
  36         .m_name = "sigrokdecode",
  37         .m_doc = "sigrokdecode module",
  38         .m_size = -1,
  39 };
  40
  41 /** @cond PRIVATE */
  42 PyMODINIT_FUNC PyInit_sigrokdecode(void)
  43 {
  44         PyObject *mod, *Decoder_type;
  45         PyGILState_STATE gstate;
  46
  47         gstate = PyGILState_Ensure();
  48
  49         mod = PyModule_Create(&sigrokdecode_module);
  50         if (!mod)
  51                 goto err_out;
  52
  53         Decoder_type = srd_Decoder_type_new();
  54         if (!Decoder_type)
  55                 goto err_out;
  56         if (PyModule_AddObject(mod, "Decoder", Decoder_type) < 0)
  57                 goto err_out;
  58
  59         /* Expose output types as symbols in the sigrokdecode module */
  60         if (PyModule_AddIntConstant(mod, "OUTPUT_ANN", SRD_OUTPUT_ANN) < 0)
  61                 goto err_out;
  62         if (PyModule_AddIntConstant(mod, "OUTPUT_PYTHON", SRD_OUTPUT_PYTHON) < 0)
  63                 goto err_out;
  64         if (PyModule_AddIntConstant(mod, "OUTPUT_BINARY", SRD_OUTPUT_BINARY) < 0)
  65                 goto err_out;
  66         if (PyModule_AddIntConstant(mod, "OUTPUT_META", SRD_OUTPUT_META) < 0)
  67                 goto err_out;
  68         /* Expose meta input symbols. */
  69         if (PyModule_AddIntConstant(mod, "SRD_CONF_SAMPLERATE", SRD_CONF_SAMPLERATE) < 0)
  70                 goto err_out;
  71
  72         mod_sigrokdecode = mod;
  73
  74         PyGILState_Release(gstate);
  75
  76         return mod;
  77
  78 err_out:
  79         Py_XDECREF(mod);
  80         srd_exception_catch("Failed to initialize module");
  81         PyGILState_Release(gstate);
  82
  83         return NULL;
  84 }
  85
  86 /** @endcond */