From 3563c497769de7b224d107a18db98e2949966eaf Mon Sep 17 00:00:00 2001
From: Dmitriy Gerasimov <naeper@demlabs.net>
Date: Fri, 24 May 2019 14:49:41 +0700
Subject: [PATCH] [+] Massive tx create [-] debug printf
---
dap_chain_mempool.c | 146 +++++++++++++++++++++++++++++++++++++++++++-
dap_chain_mempool.h | 5 ++
2 files changed, 150 insertions(+), 1 deletion(-)
diff --git a/dap_chain_mempool.c b/dap_chain_mempool.c
index ba4ce67..b6e71ec 100755
--- a/dap_chain_mempool.c
+++ b/dap_chain_mempool.c
@@ -214,6 +214,150 @@ int dap_chain_mempool_tx_create(dap_chain_t * a_chain, dap_enc_key_t *a_key_from
return 0;
}
+/**
+ * Make transfer transaction & insert to cache
+ *
+ * return 0 Ok, -2 not enough funds to transfer, -1 other Error
+ */
+int dap_chain_mempool_tx_create_massive( dap_chain_t * a_chain, dap_enc_key_t *a_key_from,
+ const dap_chain_addr_t* a_addr_from, const dap_chain_addr_t* a_addr_to,
+ const dap_chain_addr_t* a_addr_fee,
+ const char a_token_ticker[10],
+ uint64_t a_value, uint64_t a_value_fee,size_t a_tx_num)
+{
+ // check valid param
+ if(!a_chain | !a_key_from || !a_key_from->priv_key_data || !a_key_from->priv_key_data_size ||
+ !dap_chain_addr_check_sum(a_addr_from) || !dap_chain_addr_check_sum(a_addr_to) ||
+ (a_addr_fee && !dap_chain_addr_check_sum(a_addr_fee)) || !a_value || !a_tx_num)
+ return -1;
+ dap_global_db_obj_t * l_objs = DAP_NEW_Z_SIZE(dap_global_db_obj_t, a_tx_num+1);
+
+ for (size_t i=0; i< a_tx_num ; i++){
+
+ // find the transactions from which to take away coins
+ dap_list_t *l_list_used_out = NULL; // list of transaction with 'out' items
+ uint64_t l_value_transfer = 0; // how many coins to transfer
+ {
+ dap_chain_hash_fast_t l_tx_cur_hash = { 0 };
+ uint64_t l_value_need = a_value + a_value_fee;
+ while(l_value_transfer < l_value_need)
+ {
+ // Get the transaction in the cache by the addr in out item
+ const dap_chain_datum_tx_t *l_tx = dap_chain_ledger_tx_find_by_addr(a_chain->ledger, a_addr_from,
+ &l_tx_cur_hash);
+ if(!l_tx)
+ break;
+ // Get all item from transaction by type
+ int l_item_count = 0;
+ dap_list_t *l_list_out_items = dap_chain_datum_tx_items_get((dap_chain_datum_tx_t*) l_tx, TX_ITEM_TYPE_OUT,
+ &l_item_count);
+ dap_list_t *l_list_tmp = l_list_out_items;
+ int l_out_idx_tmp = 0; // current index of 'out' item
+ while(l_list_tmp) {
+ dap_chain_tx_out_t *out_item = l_list_tmp->data;
+ // if 'out' item has addr = a_addr_from
+ if(out_item && &out_item->addr && !memcmp(a_addr_from, &out_item->addr, sizeof(dap_chain_addr_t))) {
+
+ // Check whether used 'out' items
+ if(!dap_chain_ledger_tx_hash_is_used_out_item (a_chain->ledger, &l_tx_cur_hash, l_out_idx_tmp)) {
+
+ list_used_item_t *item = DAP_NEW(list_used_item_t);
+ memcpy(&item->tx_hash_fast, &l_tx_cur_hash, sizeof(dap_chain_hash_fast_t));
+ item->num_idx_out = l_out_idx_tmp;
+ item->value = out_item->header.value;
+ l_list_used_out = dap_list_append(l_list_used_out, item);
+ l_value_transfer += item->value;
+ // already accumulated the required value, finish the search for 'out' items
+ if(l_value_transfer >= l_value_need) {
+ break;
+ }
+ }
+ }
+ // go to the next 'out' item in l_tx transaction
+ l_out_idx_tmp++;
+ l_list_tmp = dap_list_next(l_list_tmp);
+ }
+ dap_list_free(l_list_out_items);
+ }
+
+ // nothing to tranfer (not enough funds)
+ if(!l_list_used_out || l_value_transfer < l_value_need) {
+ dap_list_free_full(l_list_used_out, free);
+ return -2;
+ }
+ }
+
+ // create empty transaction
+ dap_chain_datum_tx_t *l_tx = dap_chain_datum_tx_create();
+ // add 'in' items
+ {
+ dap_list_t *l_list_tmp = l_list_used_out;
+ uint64_t l_value_to_items = 0; // how many coins to transfer
+ while(l_list_tmp) {
+ list_used_item_t *item = l_list_tmp->data;
+ if(dap_chain_datum_tx_add_in_item(&l_tx, &item->tx_hash_fast, item->num_idx_out) == 1) {
+ l_value_to_items += item->value;
+ }
+ l_list_tmp = dap_list_next(l_list_tmp);
+ }
+ assert(l_value_to_items == l_value_transfer);
+ dap_list_free_full(l_list_used_out, free);
+ }
+ // add 'out' items
+ {
+ uint64_t l_value_pack = 0; // how much coin add to 'out' items
+ if(dap_chain_datum_tx_add_out_item(&l_tx, a_addr_to, a_value) == 1) {
+ l_value_pack += a_value;
+ // transaction fee
+ if(a_addr_fee) {
+ if(dap_chain_datum_tx_add_out_item(&l_tx, a_addr_fee, a_value_fee) == 1)
+ l_value_pack += a_value_fee;
+ }
+ }
+ // coin back
+ uint64_t l_value_back = l_value_transfer - l_value_pack;
+ if(l_value_back) {
+ if(dap_chain_datum_tx_add_out_item(&l_tx, a_addr_from, l_value_back) != 1) {
+ dap_chain_datum_tx_delete(l_tx);
+ return -3;
+ }
+ }
+ }
+
+ // add 'sign' items
+ if(dap_chain_datum_tx_add_sign_item(&l_tx, a_key_from) != 1) {
+ dap_chain_datum_tx_delete(l_tx);
+ return -1;
+ }
+
+ size_t l_tx_size = dap_chain_datum_tx_get_size(l_tx);
+ dap_chain_datum_t *l_datum = dap_chain_datum_create(DAP_CHAIN_DATUM_TX, l_tx, l_tx_size);
+
+ dap_chain_hash_fast_t l_key_hash;
+ dap_hash_fast(l_tx, l_tx_size, &l_key_hash);
+ DAP_DELETE(l_tx);
+
+ l_objs[i].key = dap_chain_hash_fast_to_str_new(&l_key_hash);;
+ l_objs[i].value = (uint8_t*) l_datum;
+ l_objs[i].value_len = l_tx_size + sizeof(l_datum->header);
+ }
+ char * l_gdb_group = dap_chain_net_get_gdb_group_mempool(a_chain);
+
+ if(dap_chain_global_db_gr_save(l_objs,a_tx_num,l_gdb_group) ) {
+ log_it(L_NOTICE, "%u transaction are placed in mempool", a_tx_num);
+ //DAP_DELETE(l_objs);
+ DAP_DELETE(l_gdb_group);
+ return 0;
+ }else{
+ log_it(L_ERROR, "Can't place %u transactions in mempool", a_tx_num);
+ //DAP_DELETE(l_objs);
+ DAP_DELETE(l_gdb_group);
+ return -4;
+ }
+
+
+}
+
/**
* Make transfer transaction & insert to cache
*
@@ -625,7 +769,7 @@ void chain_mempool_proc(struct dap_http_simple *cl_st, void * arg)
char *suburl = dg->url_path;
char *request_str = dg->request_str;
int request_size = dg->request_size;
- printf("!!***!!! chain_mempool_proc arg=%d suburl=%s str=%s len=%d\n", arg, suburl, request_str, request_size);
+ //printf("!!***!!! chain_mempool_proc arg=%d suburl=%s str=%s len=%d\n", arg, suburl, request_str, request_size);
if(request_str && request_size > 1) {
// find what to do
uint8_t action = DAP_DATUM_MEMPOOL_NONE; //*(uint8_t*) request_str;
diff --git a/dap_chain_mempool.h b/dap_chain_mempool.h
index facb979..4bab83f 100755
--- a/dap_chain_mempool.h
+++ b/dap_chain_mempool.h
@@ -56,3 +56,8 @@ int dap_chain_mempool_tx_create_cond(dap_chain_t * a_chain,
uint64_t a_value, uint64_t a_value_fee, const void *a_cond, size_t a_cond_size);
int dap_chain_mempool_datum_add(dap_chain_datum_t * a_datum);
+int dap_chain_mempool_tx_create_massive( dap_chain_t * a_chain, dap_enc_key_t *a_key_from,
+ const dap_chain_addr_t* a_addr_from, const dap_chain_addr_t* a_addr_to,
+ const dap_chain_addr_t* a_addr_fee,
+ const char a_token_ticker[10],
+ uint64_t a_value, uint64_t a_value_fee,size_t a_tx_num);
--
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