LBRYCommunity/cpuminer
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Add timing info. Remove BIGNUM PoW checks.

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Jeff Garzik 2010-11-24 02:11:59 -05:00 committed by Jeff Garzik
parent 666af32046
commit 45a29ac997
1 changed files with 27 additions and 43 deletions
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70
cpu-miner.c
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@ -10,6 +10,7 @@
#include <string.h>
#include <stdbool.h>
#include <unistd.h>
#include <time.h>
#include <jansson.h>
#include <curl/curl.h>
#include <openssl/bn.h>
@ -22,6 +23,7 @@ enum {
static const bool opt_verbose = false;
static const bool opt_debug = false;
static const bool opt_time = true;
struct data_buffer {
void *buf;
@ -316,6 +318,9 @@ static uint32_t scanhash(unsigned char *midstate, unsigned char *data,
uint32_t *hash32 = (uint32_t *) hash;
uint32_t *nonce = (uint32_t *)(data + 12);
uint32_t n;
time_t t_start;
t_start = time(NULL);
while (1) {
n = *nonce;
@ -339,8 +344,15 @@ static uint32_t scanhash(unsigned char *midstate, unsigned char *data,
}
if ((n & 0xffffff) == 0) {
if (1)
fprintf(stderr, "DBG: end of nonce range\n");
time_t t_end = time(NULL);
time_t diff = t_end - t_start;
long double nd = n;
long double sd = diff;
if (opt_time) {
fprintf(stderr,
"DBG: end of nonce range, %.2Lf khps\n",
(nd / sd) / 1000.0);
}
return 0;
}
}
@ -349,54 +361,25 @@ static uint32_t scanhash(unsigned char *midstate, unsigned char *data,
static const char *url = "http://127.0.0.1:8332/";
static const char *userpass = "pretzel:smooth";
static void submit_work(struct work *work)
static void submit_work(struct work *work, bool byte_rev)
{
char *hexstr = NULL, *s = NULL;
json_t *val, *res;
int i;
unsigned char hash_rev[32];
BIGNUM *hashnum;
char *s_hash, *s_target;
unsigned char data[128];
printf("PROOF OF WORK FOUND? submitting...\n");
printf("PROOF OF WORK FOUND? submitting (reversed:%s)...\n",
byte_rev ? "yes" : "no");
for (i = 0; i < 32/4; i++)
((uint32_t *)hash_rev)[i] =
swab32(((uint32_t *)work->hash)[i]);
hashnum = BN_bin2bn(hash_rev, sizeof(hash_rev), NULL);
if (!hashnum) {
fprintf(stderr, "BN_bin2bn failed\n");
return;
if (byte_rev) {
/* byte reverse data */
for (i = 0; i < 128/4; i ++)
((uint32_t *)data)[i] =
swab32(((uint32_t *)work->data)[i]);
} else {
memcpy(data, work->data, sizeof(data));
}
s_hash = BN_bn2hex(hashnum);
s_target = BN_bn2hex(work->target);
fprintf(stderr, " hash:%s\n hashTarget:%s\n",
s_hash, s_target);
free(s_hash);
free(s_target);
#if 0
i = BN_cmp(hashnum, work->target);
#endif
BN_free(hashnum);
#if 0
if (i >= 0) {
fprintf(stderr, "---INVALID--- proof of work found.\n");
return;
}
#endif
#if 0
/* byte reverse data */
for (i = 0; i < 128/4; i ++)
((uint32_t *)work->data)[i] =
swab32(((uint32_t *)work->data)[i]);
#endif
/* build hex string */
hexstr = bin2hex(work->data, sizeof(work->data));
if (!hexstr)
@ -470,7 +453,8 @@ static int main_loop(void)
/* if nonce found, submit work */
if (nonce) {
submit_work(work);
submit_work(work, false);
submit_work(work, true);
fprintf(stderr, "sleeping, after proof-of-work...\n");
sleep(POW_SLEEP_INTERVAL);