[+] Added function searching and initialization plugins.

include/dap_chain_plugins.h

+#ifndef _DAP_CHAIN_PLUGINS_
+#define _DAP_CHAIN_PLUGINS_
+#include <Python.h>
+#include "dap_config.h"
+#include "dap_common.h"
+#include "dap_file_utils.h"
+#include "dap_chain_plugins_manifest.h"
+#include "dap_chain_plugins_list.h"
+
+#ifdef __cplusplus
+extern "C"{
+#endif
+
+#undef LOG_TAG
+#define LOG_TAG "dap_chain_plugins"
+
+typedef struct dap_chain_plugin_init_list{
+    //
+}dap_chain_plugin_init_list_t;
+
+dap_list_t *list_module_plugins;
+
+const char *plugins_root_path;
+
+int dap_chain_plugins_init();
+void dap_chain_plugins_deinit();
+void dap_chain_plugins_loading();
+void dap_chain_plugins_load_plugin(const char *dir_path, const char *name);
+//void dap_chain_plugins_loading_treshold();
+bool dap_chain_plugins_check_load_plugin(manifest_t *man);
+bool dap_chain_plugins_check_load_plugins(dap_list_t *list);
+
+//int call_f_init_py(const char *path_script, const char *func);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif //_DAP_CHAIN_PLUGINS_

src/dap_chain_plugins.c

+#include "dap_chain_plugins.h"
+
+int dap_chain_plugins_init(dap_config_t *config){
+    if(dap_config_get_item_bool_default(config, "plugins", "py_load", false)){
+        plugins_root_path = dap_config_get_item_str_default(config, "plugins", "py_path",
+                                                            "/opt/cellframe-node/var/plugins/");
+        log_it(L_INFO, "Start initialize python plugins. Path plugins %s", plugins_root_path);
+        if (!dap_dir_test(plugins_root_path)){
+            log_it(L_ERROR, "The directory %s was not found.", plugins_root_path);
+            return -1;
+        }
+        Py_Initialize();
+        //Get list files
+        dap_list_t *list_plugins_name = dap_get_subs(plugins_root_path);
+        //Loading manifest and start module
+        log_it(L_INFO, "Registration manifests");
+        dap_chain_plugins_manifest_list_create();
+        char *name_file = NULL;
+        for (unsigned int i = 1; i < dap_list_length(list_plugins_name); i++){
+            if ((char*)dap_list_nth_data(list_plugins_name, i) == NULL)
+                break;
+            log_it(L_NOTICE, "Registration %s manifest", (char*)dap_list_nth_data(list_plugins_name, i));
+            name_file = dap_strjoin("",plugins_root_path, (char*)dap_list_nth_data(list_plugins_name, i),"/manifest.json", NULL);
+            if (!dap_chain_plugins_manifest_list_add_from_file(name_file)){
+                log_it(L_ERROR, "Registration %s manifest fail", (char*)dap_list_nth_data(list_plugins_name, i));
+            }
+            DAP_FREE(name_file);
+        }
+        dap_chain_plugins_loading();
+    }else{
+        log_it(L_NOTICE, "Permission to initialize python plugins has not been obtained.");
+        return -2;
+    }
+    return 0;
+}
+void dap_chain_plugins_deinit(){
+    Py_Finalize();
+}
+
+void dap_chain_plugins_loading(){
+    //
+    log_it(L_NOTICE, "Loading plugins");
+    manifest_t *man = NULL;
+    dap_list_t *treshold = NULL;
+    for (unsigned int i=0; i < dap_chain_plugins_manifests_get_lenght();i++){
+        man = dap_chain_plugins_manifest_get_list(i);
+        log_it(L_NOTICE, "Check dependencys for plugin %s", man->name);
+        if (man->dependencys != NULL ){
+            if (!dap_chain_plugins_check_load_plugins(man->dependencys)){
+                log_it(L_DEBUG, "Plugin %s add treshold", man->name);
+                dap_list_append(treshold, man);
+                break;
+            }
+        }
+        dap_chain_plugins_load_plugin(dap_strjoin("", plugins_root_path, man->name, "/", NULL), man->name);
+    }
+    unsigned int c_processed = 0;
+    unsigned int step_processed = 0;
+    unsigned int len = dap_list_length(treshold);
+    do{
+        for (unsigned i=1; i < dap_list_length(treshold);i++){
+            man = (manifest_t*)dap_list_nth_data(treshold, i);
+            if (dap_chain_plugins_check_load_plugins(man->dependencys)){
+                dap_chain_plugins_load_plugin(dap_strjoin("", plugins_root_path, man->name, "/", NULL), man->name);
+                dap_list_remove(treshold, man);
+                c_processed++;
+                step_processed = 0;
+                break;
+            }
+        }
+        step_processed++;
+    }while(c_processed < len || step_processed == 2);
+    //Check loading all treshold
+    if (dap_list_length(treshold) > 0){
+        log_it(L_WARNING, "I can't loading some plugins from list treshold");
+        for (unsigned i=0; i < dap_list_length(treshold);i++){
+            man = (manifest_t*)dap_list_nth_data(treshold, i);
+            log_it(L_ERROR, "The plugin %s does not load with a dependency resolution error.", man->name);
+            dap_list_remove(treshold, man);
+            dap_chain_plugins_manifest_free(man);
+        }
+    }
+}
+void dap_chain_plugins_load_plugin(const char *dir_path, const char *name){
+    log_it(L_NOTICE, "Loading %s plugin directory %s", name, dir_path);
+    PyObject *sys_module = PyImport_ImportModule("sys");
+    PyObject *sys_path = PyObject_GetAttrString(sys_module, "path");
+    PyObject *obj_dir_path = PyUnicode_FromString(dir_path);
+    PyList_Append(sys_path, obj_dir_path);
+    Py_XDECREF(obj_dir_path);
+    PyObject *module = PyImport_ImportModule(name);
+    PyObject *func_init = PyObject_GetAttrString(module, "init");
+    PyObject *func_deinit = PyObject_GetAttrString(module, "deinit");
+    PyObject *res_int = NULL;
+    PyErr_Clear();
+    if (func_init != NULL && PyCallable_Check(func_init)){
+        res_int = PyEval_CallObject(func_init, NULL);
+        if (res_int && PyLong_Check(res_int)){
+            if (_PyLong_AsInt(res_int) == 0){
+                dap_chain_plugins_list_add(module, name);
+            } else {
+                log_it(L_ERROR, "Code error %i at initialization %s plugin", _PyLong_AsInt(res_int), name);
+            }
+        } else {
+            log_it(L_ERROR, "Function initialization %s plugin don't reterned integer value", name);
+        }
+        Py_XDECREF(res_int);
+    }else {
+        log_it(L_ERROR, "For plugins %s don't found function init", name);
+    }
+//    Py_XDECREF(tuple);
+    if (func_deinit == NULL || !PyCallable_Check(func_deinit)){
+        log_it(L_WARNING, "For plugins %s don't found function deinit", name);
+    }
+//    PyObject *res_deint = PyObject_CallObject(func_deinit, NULL);
+//    log_it(L_ERROR, "resInt: %zu type obj: %s", res_deint, res_deint->ob_type->tp_name);
+}
+bool dap_chain_plugins_check_load_plugin(manifest_t *man){
+    for (unsigned int i =1; i < dap_chain_plugins_list_lenght(); i++){
+        if (strcmp(dap_chain_plugins_list_get_module(i)->name, man->name) == 0)
+            return true;
+    }
+    return false;
+}
+bool dap_chain_plugins_check_load_plugins(dap_list_t *list){
+    for (unsigned int i=1; i < dap_list_length(list); i++){
+        for (unsigned int i =0; i < dap_chain_plugins_list_lenght(); i++){
+            if (strcmp(dap_chain_plugins_list_get_module(i)->name, (char*)dap_list_nth_data(list, i)) != 0)
+                return false;
+        }
+    }
+    return true;
+}