X-Git-Url: https://sigrok.org/gitweb/?p=libsigrokdecode.git;a=blobdiff_plain;f=module_sigrokdecode.c;h=39b5b4392e479a5dfde3fa2985002b50f0e2384c;hp=426cf49c28b76c3cb8a0991929cf58c67bb51c43;hb=039b0db244e2e592a581a6c9b79a934bde136569;hpb=56202222ed83ff030239bb23be8296574674c4f7 diff --git a/module_sigrokdecode.c b/module_sigrokdecode.c index 426cf49..39b5b43 100644 --- a/module_sigrokdecode.c +++ b/module_sigrokdecode.c @@ -1,5 +1,5 @@ /* - * This file is part of the sigrok project. + * This file is part of the libsigrokdecode project. * * Copyright (C) 2012 Bert Vermeulen * @@ -17,229 +17,70 @@ * along with this program. If not, see . */ -#include "sigrokdecode.h" /* First, so we avoid a _POSIX_C_SOURCE warning. */ -#include "sigrokdecode-internal.h" -#include "config.h" +#include +#include "libsigrokdecode-internal.h" /* First, so we avoid a _POSIX_C_SOURCE warning. */ +#include "libsigrokdecode.h" -/* lives in type_logic.c */ -extern PyTypeObject srd_logic_type; +/** @cond PRIVATE */ +/* + * When initialized, a reference to this module inside the Python interpreter + * lives here. + */ +SRD_PRIV PyObject *mod_sigrokdecode = NULL; -static int convert_pyobj(struct srd_decoder_instance *di, PyObject *obj, - int *ann_format, char ***ann) -{ - PyObject *py_tmp; - struct srd_pd_output *pdo; - int ann_id; - - /* Should be a list of [annotation format, [string, ...]] */ - if (!PyList_Check(obj) && !PyTuple_Check(obj)) { - srd_err("Protocol decoder %s submitted %s instead of list", - di->decoder->name, obj->ob_type->tp_name); - return SRD_ERR_PYTHON; - } - - /* Should have 2 elements... */ - if (PyList_Size(obj) != 2) { - srd_err("Protocol decoder %s submitted annotation list with %d elements instead of 2", - di->decoder->name, PyList_Size(obj)); - return SRD_ERR_PYTHON; - } - - /* First element should be an integer matching a previously - * registered annotation format. */ - py_tmp = PyList_GetItem(obj, 0); - if (!PyLong_Check(py_tmp)) { - srd_err("Protocol decoder %s submitted annotation list, but first element was not an integer", - di->decoder->name); - return SRD_ERR_PYTHON; - } - - ann_id = PyLong_AsLong(py_tmp); - if (!(pdo = g_slist_nth_data(di->decoder->annotations, ann_id))) { - srd_err("Protocol decoder %s submitted data to non-existent annotation format %d", - di->decoder->name, ann_id); - return SRD_ERR_PYTHON; - } - *ann_format = ann_id; - - /* Second element must be a list */ - py_tmp = PyList_GetItem(obj, 1); - if (!PyList_Check(py_tmp)) { - srd_err("Protocol decoder %s submitted annotation list, but second element was not a list", - di->decoder->name); - return SRD_ERR_PYTHON; - } - if (py_strlist_to_char(py_tmp, ann) != SRD_OK) { - srd_err("Protocol decoder %s submitted annotation list, but second element was malformed", - di->decoder->name); - return SRD_ERR_PYTHON; - } - - return SRD_OK; -} - -static PyObject *Decoder_put(PyObject *self, PyObject *args) -{ - GSList *l; - PyObject *data, *py_res; - struct srd_decoder_instance *di, *next_di; - struct srd_pd_output *pdo; - struct srd_proto_data *pdata; - uint64_t start_sample, end_sample; - int output_id; - void (*cb)(); - - if (!(di = get_di_by_decobject(self))) - return NULL; - - if (!PyArg_ParseTuple(args, "KKiO", &start_sample, &end_sample, &output_id, &data)) - return NULL; - - if (!(l = g_slist_nth(di->pd_output, output_id))) { - srd_err("Protocol decoder %s submitted invalid output ID %d", - di->decoder->name, output_id); - return NULL; - } - pdo = l->data; - - if (!(pdata = g_try_malloc0(sizeof(struct srd_proto_data)))) - return NULL; - pdata->start_sample = start_sample; - pdata->end_sample = end_sample; - pdata->pdo = pdo; - - switch (pdo->output_type) { - case SRD_OUTPUT_ANN: - /* Annotations are only fed to callbacks. */ - if ((cb = srd_find_callback(pdo->output_type))) { - /* Annotations need converting from PyObject. */ - if (convert_pyobj(di, data, &pdata->ann_format, - (char ***)&pdata->data) != SRD_OK) { - /* An error was already logged. */ - break; - } - cb(pdata); - } - break; - case SRD_OUTPUT_PROTO: - for (l = di->next_di; l; l = l->next) { - next_di = l->data; - /* TODO: is this needed? */ - Py_XINCREF(next_di->py_instance); - if (!(py_res = PyObject_CallMethod(next_di->py_instance, "decode", - "KKO", start_sample, end_sample, data))) { - if (PyErr_Occurred()) - PyErr_Print(); - } - Py_XDECREF(py_res); - } - break; - case SRD_OUTPUT_BINARY: - srd_err("SRD_OUTPUT_BINARY not yet supported"); - break; - default: - srd_err("Protocol decoder %s submitted invalid output type %d", - di->decoder->name, pdo->output_type); - break; - } - - g_free(pdata); - - Py_RETURN_NONE; -} - - -static PyObject *Decoder_add(PyObject *self, PyObject *args) -{ - PyObject *ret; - struct srd_decoder_instance *di; - char *proto_id; - int output_type, pdo_id; - - if (!(di = get_di_by_decobject(self))) { - srd_err("%s():%d decoder instance not found", __func__, __LINE__); - PyErr_SetString(PyExc_Exception, "decoder instance not found"); - return NULL; - } - - if (!PyArg_ParseTuple(args, "is", &output_type, &proto_id)) { - if (PyErr_Occurred()) - PyErr_Print(); - return NULL; - } - - pdo_id = pd_add(di, output_type, proto_id); - if (pdo_id < 0) - Py_RETURN_NONE; - else - ret = Py_BuildValue("i", pdo_id); - - return ret; -} - -static PyMethodDef no_methods[] = { {NULL, NULL, 0, NULL} }; -static PyMethodDef Decoder_methods[] = { - {"put", Decoder_put, METH_VARARGS, - "Accepts a dictionary with the following keys: time, duration, data"}, - {"add", Decoder_add, METH_VARARGS, "Create a new output stream"}, - {NULL, NULL, 0, NULL} -}; - - -typedef struct { - PyObject_HEAD -} sigrok_Decoder_object; - -static PyTypeObject srd_Decoder_type = { - PyVarObject_HEAD_INIT(NULL, 0) - .tp_name = "sigrokdecode.Decoder", - .tp_basicsize = sizeof(sigrok_Decoder_object), - .tp_flags = Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE, - .tp_doc = "Sigrok Decoder object", - .tp_methods = Decoder_methods, -}; +/** @endcond */ static struct PyModuleDef sigrokdecode_module = { PyModuleDef_HEAD_INIT, .m_name = "sigrokdecode", - .m_doc = "sigrokdecode base class", + .m_doc = "sigrokdecode module", .m_size = -1, - .m_methods = no_methods, }; +/** @cond PRIVATE */ PyMODINIT_FUNC PyInit_sigrokdecode(void) { - PyObject *mod; - - /* tp_new needs to be assigned here for compiler portability */ - srd_Decoder_type.tp_new = PyType_GenericNew; - if (PyType_Ready(&srd_Decoder_type) < 0) - return NULL; + PyObject *mod, *Decoder_type; + PyGILState_STATE gstate; - srd_logic_type.tp_new = PyType_GenericNew; - if (PyType_Ready(&srd_logic_type) < 0) - return NULL; + gstate = PyGILState_Ensure(); mod = PyModule_Create(&sigrokdecode_module); - Py_INCREF(&srd_Decoder_type); - if (PyModule_AddObject(mod, "Decoder", (PyObject *)&srd_Decoder_type) == -1) - return NULL; - Py_INCREF(&srd_logic_type); - if (PyModule_AddObject(mod, "srd_logic", (PyObject *)&srd_logic_type) == -1) - return NULL; - - /* expose output types as symbols in the sigrokdecode module */ - if(PyModule_AddObject(mod, "OUTPUT_ANN", - PyLong_FromLong(SRD_OUTPUT_ANN)) == -1) - return NULL; - if(PyModule_AddObject(mod, "OUTPUT_PROTO", - PyLong_FromLong(SRD_OUTPUT_PROTO)) == -1) - return NULL; - if(PyModule_AddObject(mod, "OUTPUT_BINARY", - PyLong_FromLong(SRD_OUTPUT_BINARY)) == -1) - return NULL; + if (!mod) + goto err_out; + + Decoder_type = srd_Decoder_type_new(); + if (!Decoder_type) + goto err_out; + if (PyModule_AddObject(mod, "Decoder", Decoder_type) < 0) + goto err_out; + + /* Expose output types as symbols in the sigrokdecode module */ + if (PyModule_AddIntConstant(mod, "OUTPUT_ANN", SRD_OUTPUT_ANN) < 0) + goto err_out; + if (PyModule_AddIntConstant(mod, "OUTPUT_PYTHON", SRD_OUTPUT_PYTHON) < 0) + goto err_out; + if (PyModule_AddIntConstant(mod, "OUTPUT_BINARY", SRD_OUTPUT_BINARY) < 0) + goto err_out; + if (PyModule_AddIntConstant(mod, "OUTPUT_META", SRD_OUTPUT_META) < 0) + goto err_out; + /* Expose meta input symbols. */ + if (PyModule_AddIntConstant(mod, "SRD_CONF_SAMPLERATE", SRD_CONF_SAMPLERATE) < 0) + goto err_out; + + mod_sigrokdecode = mod; + + PyGILState_Release(gstate); return mod; + +err_out: + Py_XDECREF(mod); + srd_exception_catch("Failed to initialize module"); + PyGILState_Release(gstate); + + return NULL; } +/** @endcond */