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Parse transaction depends list

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This commit is contained in:
Luke Dashjr
2016-07-26 00:45:48 +00:00
parent 12db22114d
commit 4babc68a5f
1 changed files with 38 additions and 4 deletions
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42
blkmaker_jansson.c
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@@ -8,6 +8,7 @@
#define _BSD_SOURCE
#define _DEFAULT_SOURCE
#include <limits.h>
#include <stdint.h>
#include <stdlib.h>
#include <string.h>
@@ -139,7 +140,7 @@ err:
static void my_flip(void *, size_t);
static
const char *parse_txn(struct blktxn_t *txn, json_t *txnj) {
const char *parse_txn(struct blktxn_t *txn, json_t *txnj, size_t my_tx_index) {
json_t *vv;
blktxn_init(txn);
@@ -166,7 +167,40 @@ const char *parse_txn(struct blktxn_t *txn, json_t *txnj) {
my_flip(*txn->hash_, sizeof(*txn->hash_));
}
// TODO: dependcount/depends, fee, required, sigops
if ((vv = json_object_get(txnj, "depends")) && json_is_array(vv)) {
size_t depcount = json_array_size(vv);
if (depcount <= LONG_MAX) {
json_t *v;
long i;
double f;
unsigned long ul;
txn->depends = malloc(sizeof(*txn->depends) * depcount);
for (i = 0; i < depcount; ++i) {
v = json_array_get(vv, i);
if (!json_is_number(v)) {
break;
}
f = json_number_value(v);
ul = f;
if (f != ul || ul >= my_tx_index) {
// Out of range for storage type, fractional number, forward dependency, etc
break;
}
txn->depends[i] = ul;
}
if (i != depcount) {
// We failed somewhere
free(txn->depends);
txn->depends = NULL;
} else {
// Success, finish up with storing the count
txn->dependscount = depcount;
}
}
}
// TODO: fee, required, sigops
return NULL;
}
@@ -231,7 +265,7 @@ const char *blktmpl_add_jansson(blktemplate_t *tmpl, const json_t *json, time_t
for (size_t i = 0; i < txns; ++i)
{
struct blktxn_t * const txn = &tmpl->txns[i];
if ((s = parse_txn(txn, json_array_get(v, i)))) {
if ((s = parse_txn(txn, json_array_get(v, i), i + 1))) {
return s;
}
tmpl->txns_datasz += txn->datasz;
@@ -240,7 +274,7 @@ const char *blktmpl_add_jansson(blktemplate_t *tmpl, const json_t *json, time_t
if ((v = json_object_get(json, "coinbasetxn")) && json_is_object(v))
{
tmpl->cbtxn = malloc(sizeof(*tmpl->cbtxn));
if ((s = parse_txn(tmpl->cbtxn, v)))
if ((s = parse_txn(tmpl->cbtxn, v, 0)))
return s;
}