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Support for fractional diffs and the classic just-below-1 share all FFs diff target.

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This commit is contained in:
Con Kolivas 2012-11-15 09:18:58 +11:00
parent 97059e4c29
commit b3864d1a94
3 changed files with 34 additions and 28 deletions
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24
cgminer.c
View File

@ -5078,17 +5078,27 @@ static void gen_hash(unsigned char *data, unsigned char *hash, int len)
* 0x00000000ffff0000000000000000000000000000000000000000000000000000
* so we use a big endian 64 bit unsigned integer centred on the 5th byte to
* cover a huge range of difficulty targets, though not all 256 bits' worth */
static void set_work_target(struct work *work, int diff)
static void set_work_target(struct work *work, double diff)
{
unsigned char rtarget[32], target[32];
double d64;
uint64_t *data64, h64;
h64 = diffone;
h64 /= (uint64_t)diff;
memset(rtarget, 0, 32);
data64 = (uint64_t *)(rtarget + 4);
*data64 = htobe64(h64);
swab256(target, rtarget);
d64 = diffone;
d64 /= diff;
h64 = d64;
if (h64) {
memset(rtarget, 0, 32);
data64 = (uint64_t *)(rtarget + 4);
*data64 = htobe64(h64);
swab256(target, rtarget);
} else {
/* Support for the classic all FFs just-below-1 diff */
memset(target, 0xff, 28);
memset(&target[28], 0, 4);
}
if (opt_debug) {
char *htarget = bin2hex(target, 32);

4
miner.h
View File

@ -821,7 +821,7 @@ struct stratum_work {
bool clean;
int merkles;
int diff;
double diff;
};
#define RECVSIZE 8192
@ -966,7 +966,7 @@ struct work {
char job_id[64];
char nonce2[64];
char ntime[16];
int sdiff;
double sdiff;
bool gbt;
char gbt_coinbase[512];

34
util.c
View File

@ -1131,17 +1131,17 @@ static bool parse_notify(struct pool *pool, json_t *val)
static bool parse_diff(struct pool *pool, json_t *val)
{
int diff;
double diff;
diff = json_integer_value(json_array_get(val, 0));
if (diff < 1)
diff = json_number_value(json_array_get(val, 0));
if (diff == 0)
return false;
mutex_lock(&pool->pool_lock);
pool->swork.diff = diff;
mutex_unlock(&pool->pool_lock);
applog(LOG_DEBUG, "Pool %d difficulty set to %d", pool->pool_no, diff);
applog(LOG_DEBUG, "Pool %d difficulty set to %f", pool->pool_no, diff);
return true;
}
@ -1266,24 +1266,20 @@ bool auth_stratum(struct pool *pool)
sprintf(s, "{\"id\": %d, \"method\": \"mining.authorize\", \"params\": [\"%s\", \"%s\"]}",
swork_id++, pool->rpc_user, pool->rpc_pass);
/* Parse all data prior sending auth request */
while (sock_full(pool, false)) {
sret = recv_line(pool);
if (!parse_method(pool, sret)) {
clear_sock(pool);
applog(LOG_INFO, "Failed to parse stratum buffer");
free(sret);
return ret;
}
free(sret);
}
if (!stratum_send(pool, s, strlen(s)))
goto out;
sret = recv_line(pool);
if (!sret)
goto out;
/* Parse all data in the queue and anything left should be auth */
while (42) {
sret = recv_line(pool);
if (!sret)
goto out;
if (parse_method(pool, sret))
free(sret);
else
break;
}
val = JSON_LOADS(sret, &err);
free(sret);
res_val = json_object_get(val, "result");