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Cache the coinbase length to speed up stratum work generation.

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This commit is contained in:
Con Kolivas 2013-02-04 11:19:12 +11:00
parent 0870ab7532
commit d644fdf1f4
3 changed files with 17 additions and 11 deletions
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18
cgminer.c
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@ -5086,30 +5086,26 @@ static void set_work_target(struct work *work, double diff)
static void gen_stratum_work(struct pool *pool, struct work *work)
{
unsigned char *coinbase, merkle_root[32], merkle_sha[64];
int len, cb1_len, n1_len, cb2_len, i;
char *header, *merkle_hash;
uint32_t *data32, *swap32;
size_t alloc_len;
int i;
mutex_lock(&pool->pool_lock);
/* Generate coinbase */
work->nonce2 = bin2hex((const unsigned char *)&pool->nonce2, pool->n2size);
pool->nonce2++;
cb1_len = strlen(pool->swork.coinbase1) / 2;
n1_len = strlen(pool->nonce1) / 2;
cb2_len = strlen(pool->swork.coinbase2) / 2;
len = cb1_len + n1_len + pool->n2size + cb2_len;
alloc_len = len;
alloc_len = pool->swork.cb_len;
align_len(&alloc_len);
coinbase = calloc(alloc_len, 1);
hex2bin(coinbase, pool->swork.coinbase1, cb1_len);
hex2bin(coinbase + cb1_len, pool->nonce1, n1_len);
hex2bin(coinbase + cb1_len + n1_len, work->nonce2, pool->n2size);
hex2bin(coinbase + cb1_len + n1_len + pool->n2size, pool->swork.coinbase2, cb2_len);
hex2bin(coinbase, pool->swork.coinbase1, pool->swork.cb1_len);
hex2bin(coinbase + pool->swork.cb1_len, pool->nonce1, pool->n1_len);
hex2bin(coinbase + pool->swork.cb1_len + pool->n1_len, work->nonce2, pool->n2size);
hex2bin(coinbase + pool->swork.cb1_len + pool->n1_len + pool->n2size, pool->swork.coinbase2, pool->swork.cb2_len);
/* Generate merkle root */
gen_hash(coinbase, merkle_root, len);
gen_hash(coinbase, merkle_root, pool->swork.cb_len);
free(coinbase);
memcpy(merkle_sha, merkle_root, 32);
for (i = 0; i < pool->swork.merkles; i++) {

5
miner.h
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@ -855,6 +855,10 @@ struct stratum_work {
char *ntime;
bool clean;
size_t cb1_len;
size_t cb2_len;
size_t cb_len;
size_t header_len;
int merkles;
double diff;
@ -934,6 +938,7 @@ struct pool {
size_t sockbuf_size;
char *sockaddr_url; /* stripped url used for sockaddr */
char *nonce1;
size_t n1_len;
uint32_t nonce2;
int n2size;
bool has_stratum;

5
util.c
View File

@ -1131,11 +1131,15 @@ static bool parse_notify(struct pool *pool, json_t *val)
pool->swork.job_id = job_id;
pool->swork.prev_hash = prev_hash;
pool->swork.coinbase1 = coinbase1;
pool->swork.cb1_len = strlen(coinbase1) / 2;
pool->swork.coinbase2 = coinbase2;
pool->swork.cb2_len = strlen(coinbase2) / 2;
pool->swork.bbversion = bbversion;
pool->swork.nbit = nbit;
pool->swork.ntime = ntime;
pool->swork.clean = clean;
pool->swork.cb_len = pool->swork.cb1_len + pool->n1_len + pool->n2size + pool->swork.cb2_len;
for (i = 0; i < pool->swork.merkles; i++)
free(pool->swork.merkle[i]);
if (merkles) {
@ -1468,6 +1472,7 @@ bool initiate_stratum(struct pool *pool)
applog(LOG_INFO, "Failed to get nonce1 in initiate_stratum");
goto out;
}
pool->n1_len = strlen(pool->nonce1) / 2;
pool->n2size = json_integer_value(json_array_get(res_val, 2));
if (!pool->n2size) {
applog(LOG_INFO, "Failed to get n2size in initiate_stratum");