Added source files

CMakeLists.txt

+cmake_minimum_required(VERSION 2.8)
+project (dap_chain_gdb)
+  
+file(GLOB DAP_CHAIN_GDB_SRC *.c)
+file(GLOB DAP_CHAIN_GDB_HDR *.h)
+
+add_library(${PROJECT_NAME} STATIC ${DAP_CHAIN_GDB_SRC} ${DAP_CHAIN_GDB_HDR})
+
+target_link_libraries(dap_chain_gdb dap_core dap_chain dap_chain_global_db dap_chain_mempool dap_chain_net)
+target_include_directories(dap_chain_gdb INTERFACE .)
+
+set(${PROJECT_NAME}_DEFINITIONS CACHE INTERNAL "${PROJECT_NAME}: Definitions" FORCE)
+
+set(${PROJECT_NAME}_INCLUDE_DIRS ${PROJECT_SOURCE_DIR} CACHE INTERNAL "${PROJECT_NAME}: Include Directories" FORCE)

dap_chain_gdb.c

+/*
+ * Authors:
+ * Alexander Lysikov <alexander.lysikov@demlabs.net>
+ * DeM Labs Inc.   https://demlabs.net
+ * Kelvin Project https://github.com/kelvindap_chain_global_dbblockchain
+ * Copyright  (c) 2019
+ * All rights reserved.
+
+ This file is part of DAP (Deus Applications Prototypes) the open source project
+
+ DAP (Deus Applicaions Prototypes) is free software: you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation, either version 3 of the License, or
+ (at your option) any later version.
+
+ DAP is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with any DAP based project.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <stdlib.h>
+#include <stdbool.h>
+#include <pthread.h>
+
+#include "dap_common.h"
+#include "dap_strfuncs.h"
+#include "dap_config.h"
+#include "dap_chain_ledger.h"
+#include "dap_chain_global_db.h"
+#include "dap_chain_net.h"
+#include "dap_chain_cs.h"
+#include "dap_chain_gdb.h"
+
+#define LOG_TAG "dap_chain_gdb"
+
+#define CONSENSUS_NAME "nochains-gdb"
+
+typedef struct dap_chain_gdb_private
+{
+    bool celled;
+    char *group_tx;
+    char *group_ledger;
+
+    pthread_rwlock_t events_rwlock;
+} dap_chain_gdb_private_t;
+
+#define GDB_INTERNAL(a) ( (dap_chain_gdb_private_t* ) (a) ? a->_internal : NULL )
+#define DAP_CHAIN_GDB(a) ( (dap_chain_gdb_t *) (a)->_inheritor)
+
+// Atomic element organization callbacks
+static int s_chain_callback_atom_add(dap_chain_t * a_chain, dap_chain_atom_ptr_t); //    Accept new event in gdb
+static int s_chain_callback_atom_verify(dap_chain_t * a_chain, dap_chain_atom_ptr_t); //    Verify new event in gdb
+static size_t s_chain_callback_atom_hdr_get_size(dap_chain_atom_ptr_t); //    Get gdb event size
+static size_t s_chain_callback_atom_get_static_hdr_size(void); //    Get gdb event header size
+
+static dap_chain_atom_iter_t* s_chain_callback_atom_iter_create(dap_chain_t * a_chain);
+static dap_chain_atom_iter_t* s_chain_callback_atom_iter_create_from(dap_chain_t * a_chain,
+        dap_chain_atom_ptr_t a);
+
+// Delete iterator
+static void s_chain_callback_atom_iter_delete(dap_chain_atom_iter_t * a_atom_iter); //    Get the fisrt event from gdb
+
+static dap_chain_atom_ptr_t s_chain_callback_atom_iter_find_by_hash(dap_chain_atom_iter_t * a_atom_iter,
+        dap_chain_hash_fast_t * a_atom_hash);
+
+// Get event(s) from gdb
+static dap_chain_atom_ptr_t s_chain_callback_atom_iter_get_first(dap_chain_atom_iter_t * a_atom_iter); //    Get the fisrt event from gdb
+static dap_chain_atom_ptr_t s_chain_callback_atom_iter_get_next(dap_chain_atom_iter_t * a_atom_iter); //    Get the next event from gdb
+static dap_chain_atom_ptr_t *s_chain_callback_atom_iter_get_links(dap_chain_atom_iter_t * a_atom_iter,
+        size_t * a_links_size_ptr); //    Get list of linked events
+static dap_chain_atom_ptr_t *s_chain_callback_atom_iter_get_lasts(dap_chain_atom_iter_t * a_atom_iter,
+        size_t * a_lasts_size_ptr); //    Get list of linked events
+
+static size_t s_chain_callback_datums_pool_proc(dap_chain_t * a_chain, dap_chain_datum_t ** a_datums,
+        size_t a_datums_size);
+
+/**
+ * Stub for consensus
+ */
+static int s_cs_callback_new(dap_chain_t * a_chain, dap_config_t * a_chain_cfg)
+{
+    dap_chain_gdb_new(a_chain, a_chain_cfg);
+    return 0;
+}
+
+/**
+ * @brief dap_chain_cs_gdb_init
+ * @return
+ */
+int dap_chain_gdb_init(void)
+{
+    dap_chain_cs_add(CONSENSUS_NAME, s_cs_callback_new);
+    dap_chain_class_add("gdb", dap_chain_gdb_new);
+
+    log_it(L_NOTICE, "Initialized GDB chain items organization class");
+    return 0;
+}
+
+/**
+ * @brief dap_chain_gdb_new
+ * @param a_chain
+ * @param a_chain_cfg
+ */
+int dap_chain_gdb_new(dap_chain_t * a_chain, dap_config_t * a_chain_cfg)
+{
+    dap_chain_gdb_t *l_gdb = DAP_NEW_Z(dap_chain_gdb_t);
+    dap_chain_gdb_private_t *l_gdb_priv = DAP_NEW_Z(dap_chain_gdb_private_t);
+    l_gdb->chain = a_chain;
+    l_gdb->_internal = (void*) l_gdb_priv;
+    a_chain->_inheritor = l_gdb;
+
+    pthread_rwlock_init(&l_gdb_priv->events_rwlock, NULL);
+    l_gdb_priv->group_tx = dap_strdup(dap_config_get_item_str(a_chain_cfg, CONSENSUS_NAME, "group_tx"));
+    l_gdb_priv->group_ledger = dap_strdup(dap_config_get_item_str(a_chain_cfg, CONSENSUS_NAME, "group_ledger"));
+
+    a_chain->callback_delete = dap_chain_gdb_delete;
+    //dap_chain_cs_dag_t * l_dag = DAP_NEW_Z(dap_chain_cs_dag_t);
+    //l_dag->_pvt = DAP_NEW_Z(dap_chain_cs_dag_pvt_t);
+    //l_dag->chain = a_chain;
+
+    // Atom element callbacks
+    a_chain->callback_atom_add = s_chain_callback_atom_add; // Accept new element in chain
+    a_chain->callback_atom_verify = s_chain_callback_atom_verify; // Verify new element in chain
+    a_chain->callback_atom_get_size = s_chain_callback_atom_hdr_get_size; // Get dag event size
+    a_chain->callback_atom_get_hdr_static_size = s_chain_callback_atom_get_static_hdr_size; // Get dag event hdr size
+
+    a_chain->callback_atom_iter_create = s_chain_callback_atom_iter_create;
+    a_chain->callback_atom_iter_create_from = s_chain_callback_atom_iter_create_from;
+    a_chain->callback_atom_iter_delete = s_chain_callback_atom_iter_delete;
+
+    a_chain->callback_atom_find_by_hash = s_chain_callback_atom_iter_find_by_hash;
+    a_chain->callback_datums_pool_proc = s_chain_callback_datums_pool_proc;
+
+    // Linear pass through
+    a_chain->callback_atom_iter_get_first = s_chain_callback_atom_iter_get_first; // Get the fisrt element from chain
+    a_chain->callback_atom_iter_get_next = s_chain_callback_atom_iter_get_next; // Get the next element from chain from the current one
+
+    a_chain->callback_atom_iter_get_links = s_chain_callback_atom_iter_get_links; // Get the next element from chain from the current one
+    a_chain->callback_atom_iter_get_lasts = s_chain_callback_atom_iter_get_lasts;
+
+    return 0;
+}
+
+/**
+ * @brief dap_chain_cs_gdb_delete
+ * @param a_chain
+ * @return
+ */
+void dap_chain_gdb_delete(dap_chain_t * a_chain)
+{
+    dap_chain_gdb_t * l_gdb = DAP_CHAIN_GDB(a_chain);
+    dap_chain_gdb_private_t *l_gdb_priv = GDB_INTERNAL(l_gdb);
+
+    pthread_rwlock_destroy(&l_gdb_priv->events_rwlock);
+    DAP_DELETE(l_gdb_priv->group_tx);
+    DAP_DELETE(l_gdb_priv->group_ledger);
+
+    DAP_DELETE(l_gdb);
+    a_chain->_inheritor = NULL;
+}
+
+static int compare_datum_items(const void * l_a, const void * l_b)
+{
+    dap_chain_datum_t *l_item_a = (dap_chain_datum_t*) l_a;
+    dap_chain_datum_t *l_item_b = (dap_chain_datum_t*) l_b;
+    if(l_item_a->header.ts_create == l_item_b->header.ts_create)
+        return 0;
+    if(l_item_a->header.ts_create < l_item_b->header.ts_create)
+        return -1;
+    return 1;
+}
+
+/**
+ * Load ledger from mempool
+ *
+ * return 0 if OK otherwise  negative error code
+ */
+int dap_chain_gdb_ledger_load(dap_chain_gdb_t *l_gdb, dap_ledger_t *a_ledger, const char *a_net_name, const char *a_chain_name)
+{
+    // protect from reloading
+    if(dap_chain_ledger_count(a_ledger) > 0)
+        return 0;
+    dap_chain_gdb_private_t *l_gdb_priv = GDB_INTERNAL(l_gdb);
+    dap_list_t *l_datum_list = NULL, *l_list_tmp = NULL;
+
+    // Read first transaction mempool group name
+    dap_chain_net_t *l_net = dap_chain_net_by_name(a_net_name);
+    dap_chain_t * l_chain_base_tx = (l_net) ? dap_chain_net_get_chain_by_name(l_net, a_chain_name) : NULL;
+    char * l_gdb_group_mempool_base_tx =
+            (l_chain_base_tx) ? dap_chain_net_get_gdb_group_mempool(l_chain_base_tx) : NULL;
+
+    // Read first transaction in mempool_groups from a_mempool_group_names_list
+    size_t l_data_size = 0;
+    dap_global_db_obj_t **data_ft = NULL;
+    if(l_gdb_group_mempool_base_tx) {
+        data_ft = dap_chain_global_db_gr_load(l_gdb_group_mempool_base_tx, &l_data_size);
+        // make list of datums
+        for(size_t i = 0; i < l_data_size; i++) {
+            l_datum_list = dap_list_prepend(l_datum_list, data_ft[i]->value);
+        }
+    }
+
+    //  Read the entire database into an array of size bytes
+    dap_global_db_obj_t **data = dap_chain_global_db_gr_load(l_gdb_priv->group_ledger, &l_data_size);
+    // make list of datums
+    for(size_t i = 0; i < l_data_size; i++) {
+        l_datum_list = dap_list_prepend(l_datum_list, data[i]->value);
+    }
+    // sort list by time
+    l_datum_list = dap_list_sort(l_datum_list, (dap_callback_compare_t) compare_datum_items);
+    l_list_tmp = l_datum_list;
+    // add datum_tx from list to ledger
+    while(l_list_tmp) {
+        dap_chain_datum_t *l_datum = (dap_chain_datum_t*) l_list_tmp->data;
+        if(l_datum->header.type_id == DAP_CHAIN_DATUM_TX) {
+            dap_chain_datum_tx_t *l_tx = (dap_chain_datum_tx_t*) l_datum->data;
+            if(dap_chain_datum_tx_get_size(l_tx) == l_datum->header.data_size)
+                dap_chain_ledger_tx_add(a_ledger,l_tx);
+        }
+        l_list_tmp = dap_list_next(l_list_tmp);
+    }
+    dap_chain_global_db_objs_delete(data);
+    dap_list_free(l_datum_list);
+    return 0;
+}
+
+
+/**
+ * @brief s_chain_callback_datums_add
+ * @param a_chain
+ * @param a_datums
+ * @param a_datums_size
+ */
+static int s_chain_callback_atom_add(dap_chain_t * a_chain, dap_chain_atom_ptr_t a_atom)
+{
+    return 0;
+}
+
+/**
+ * @brief s_chain_callback_atom_verify Verify atomic element
+ * @param a_chain
+ * @param a_atom
+ * @return
+ */
+static int s_chain_callback_atom_verify(dap_chain_t * a_chain, dap_chain_atom_ptr_t a_atom)
+{
+    return 0;
+}
+
+/**
+ * @brief s_chain_callback_atom_get_size Get size of atomic element
+ * @param a_atom
+ * @return
+ */
+static size_t s_chain_callback_atom_hdr_get_size(dap_chain_atom_ptr_t a_atom)
+{
+    return 0;
+}
+
+/**
+ * @brief s_chain_callback_atom_get_static_hdr_size
+ * @param a_chain
+ * @return
+ */
+static size_t s_chain_callback_atom_get_static_hdr_size()
+{
+    return 0;
+}
+
+/**
+ * @brief s_chain_callback_atom_iter_create Create atomic element iterator
+ * @param a_chain
+ * @return
+ */
+static dap_chain_atom_iter_t* s_chain_callback_atom_iter_create(dap_chain_t * a_chain)
+{
+    return 0;
+}
+
+/**
+ * @brief s_chain_callback_atom_iter_create_from
+ * @param a_chain
+ * @param a_atom
+ * @return
+ */
+static dap_chain_atom_iter_t* s_chain_callback_atom_iter_create_from(dap_chain_t * a_chain,
+        dap_chain_atom_ptr_t a_atom)
+{
+    return 0;
+}
+
+/**
+ * @brief s_chain_callback_atom_iter_delete Delete dag event iterator
+ * @param a_atom_iter
+ */
+static void s_chain_callback_atom_iter_delete(dap_chain_atom_iter_t * a_atom_iter)
+{
+    DAP_DELETE(a_atom_iter);
+}
+
+/**
+ * @brief s_chain_callback_atom_iter_find_by_hash
+ * @param a_atom_iter
+ * @param a_atom_hash
+ * @return
+ */
+static dap_chain_atom_ptr_t s_chain_callback_atom_iter_find_by_hash(dap_chain_atom_iter_t * a_atom_iter,
+        dap_chain_hash_fast_t * a_atom_hash)
+{
+    return 0;
+}
+
+/**
+ * @brief s_chain_callback_datums_add
+ * @param a_chain
+ * @param a_datums
+ * @param a_datums_size
+ */
+static size_t s_chain_callback_datums_pool_proc(dap_chain_t * a_chain, dap_chain_datum_t ** a_datums,
+        size_t a_datums_count)
+{
+    return 0;
+}
+
+/**
+ * @brief s_chain_callback_atom_iter_get_first Get the first dag event
+ * @param a_atom_iter
+ * @return
+ */
+static dap_chain_atom_ptr_t s_chain_callback_atom_iter_get_first(dap_chain_atom_iter_t * a_atom_iter)
+{
+    return 0;
+}
+/**
+ * @brief s_chain_callback_atom_iter_get_next Get the next dag event
+ * @param a_atom_iter
+ * @return
+ */
+static dap_chain_atom_ptr_t s_chain_callback_atom_iter_get_next(dap_chain_atom_iter_t * a_atom_iter)
+{
+    return 0;
+}
+
+/**
+ * @brief s_chain_callback_atom_iter_get_links
+ * @param a_atom_iter
+ * @param a_links_size_ptr
+ * @return
+ */
+static dap_chain_atom_ptr_t* s_chain_callback_atom_iter_get_links(dap_chain_atom_iter_t * a_atom_iter,
+        size_t * a_links_size_ptr)
+{
+    return 0;
+}
+
+/**
+ * @brief s_chain_callback_atom_iter_get_lasts
+ * @param a_atom_iter
+ * @param a_lasts_size_ptr
+ * @return
+ */
+static dap_chain_atom_ptr_t* s_chain_callback_atom_iter_get_lasts(dap_chain_atom_iter_t * a_atom_iter,
+        size_t * a_lasts_size_ptr)
+{
+    return 0;
+}
+

dap_chain_gdb.h

+/*
+ * Authors:
+ * Alexander Lysikov <alexander.lysikov@demlabs.net>
+ * DeM Labs Inc.   https://demlabs.net
+ * Kelvin Project https://github.com/kelvinblockchain
+ * Copyright  (c) 2019
+ * All rights reserved.
+
+ This file is part of DAP (Deus Applications Prototypes) the open source project
+
+ DAP (Deus Applicaions Prototypes) is free software: you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation, either version 3 of the License, or
+ (at your option) any later version.
+
+ DAP is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with any DAP based project.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#pragma once
+
+#include "dap_chain.h"
+
+typedef struct dap_chain_gdb {
+
+    dap_chain_t *chain;
+    void * _internal; // private data
+    void * _inheritor; // inheritor object
+
+} dap_chain_gdb_t;
+
+int dap_chain_gdb_init(void);
+int dap_chain_gdb_new(dap_chain_t * a_chain, dap_config_t * a_chain_cfg);
+void dap_chain_gdb_delete(dap_chain_t * a_chain);
+