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cpu-miner.c
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cpu-miner.c
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/*
* Copyright 2010 Jeff Garzik
* Copyright 2012-2014 pooler
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the Free
* Software Foundation; either version 2 of the License, or (at your option)
* any later version. See COPYING for more details.
*/
#include "cpuminer-config.h"
#define _GNU_SOURCE
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <stdbool.h>
#include <inttypes.h>
#include <unistd.h>
#include <math.h>
#include <sys/time.h>
#include <time.h>
#include <signal.h>
#include <curl/curl.h>
#include <jansson.h>
#include <openssl/sha.h>
#ifdef WIN32
#include <windows.h>
#include <stdint.h>
#else
#include <errno.h>
#include <sys/resource.h>
#if HAVE_SYS_SYSCTL_H
#include <sys/types.h>
#if HAVE_SYS_PARAM_H
#include <sys/param.h>
#endif
#include <sys/sysctl.h>
#endif
#endif
#include "compat.h"
#include "miner.h"
#ifdef WIN32
#include <Mmsystem.h>
#pragma comment(lib, "winmm.lib")
#include "compat/winansi.h"
BOOL WINAPI ConsoleHandler(DWORD);
#endif
#define PROGRAM_NAME "ccminer"
#define LP_SCANTIME 60
#define HEAVYCOIN_BLKHDR_SZ 84
#define MNR_BLKHDR_SZ 80
// from heavy.cu
#ifdef __cplusplus
extern "C"
{
#endif
int cuda_num_devices();
void cuda_devicenames();
void cuda_devicereset();
int cuda_finddevice(char *name);
#ifdef __cplusplus
}
#endif
#ifdef __linux /* Linux specific policy and affinity management */
#include <sched.h>
static inline void drop_policy(void)
{
struct sched_param param;
param.sched_priority = 0;
#ifdef SCHED_IDLE
if (unlikely(sched_setscheduler(0, SCHED_IDLE, ¶m) == -1))
#endif
#ifdef SCHED_BATCH
sched_setscheduler(0, SCHED_BATCH, ¶m);
#endif
}
static inline void affine_to_cpu(int id, int cpu)
{
cpu_set_t set;
CPU_ZERO(&set);
CPU_SET(cpu, &set);
sched_setaffinity(0, sizeof(&set), &set);
}
#elif defined(__FreeBSD__) /* FreeBSD specific policy and affinity management */
#include <sys/cpuset.h>
static inline void drop_policy(void)
{
}
static inline void affine_to_cpu(int id, int cpu)
{
cpuset_t set;
CPU_ZERO(&set);
CPU_SET(cpu, &set);
cpuset_setaffinity(CPU_LEVEL_WHICH, CPU_WHICH_TID, -1, sizeof(cpuset_t), &set);
}
#else
static inline void drop_policy(void)
{
}
static inline void affine_to_cpu(int id, int cpu)
{
}
#endif
enum workio_commands {
WC_GET_WORK,
WC_SUBMIT_WORK,
};
struct workio_cmd {
enum workio_commands cmd;
struct thr_info *thr;
union {
struct work *work;
} u;
};
typedef enum {
ALGO_ANIME,
ALGO_BLAKE,
ALGO_BLAKECOIN,
ALGO_DEEP,
ALGO_DOOM,
ALGO_FRESH,
ALGO_FUGUE256, /* Fugue256 */
ALGO_GROESTL,
ALGO_HEAVY, /* Heavycoin hash */
ALGO_KECCAK,
ALGO_JACKPOT,
ALGO_LUFFA_DOOM,
ALGO_MJOLLNIR, /* Mjollnir hash */
ALGO_MYR_GR,
ALGO_NIST5,
ALGO_PENTABLAKE,
ALGO_QUARK,
ALGO_QUBIT,
ALGO_S3,
ALGO_WHC,
ALGO_X11,
ALGO_X13,
ALGO_X14,
ALGO_X15,
ALGO_X17,
ALGO_DMD_GR,
} sha256_algos;
static const char *algo_names[] = {
"anime",
"blake",
"blakecoin",
"deep",
"doom", /* is luffa */
"fresh",
"fugue256",
"groestl",
"heavy",
"keccak",
"jackpot",
"luffa",
"mjollnir",
"myr-gr",
"nist5",
"penta",
"quark",
"qubit",
"s3",
"whirl",
"x11",
"x13",
"x14",
"x15",
"x17",
"dmd-gr",
};
bool opt_debug = false;
bool opt_tracegpu = false;
bool opt_protocol = false;
bool opt_benchmark = false;
bool want_longpoll = true;
bool have_longpoll = false;
bool want_stratum = true;
bool have_stratum = false;
static bool submit_old = false;
bool use_syslog = false;
bool use_colors = true;
static bool opt_background = false;
bool opt_quiet = false;
static int opt_retries = -1;
static int opt_fail_pause = 30;
int opt_timeout = 270;
static int opt_scantime = 5;
static json_t *opt_config;
static const bool opt_time = true;
static sha256_algos opt_algo = ALGO_HEAVY;
int opt_n_threads = 0;
static double opt_difficulty = 1; // CH
bool opt_trust_pool = false;
uint16_t opt_vote = 9999;
static int num_processors;
int device_map[8] = {0,1,2,3,4,5,6,7}; // CB
char *device_name[8]; // CB
static char *rpc_url;
static char *rpc_userpass;
static char *rpc_user, *rpc_pass;
static char *short_url = NULL;
char *opt_cert;
char *opt_proxy;
long opt_proxy_type;
struct thr_info *thr_info;
static int work_thr_id;
int longpoll_thr_id = -1;
int stratum_thr_id = -1;
struct work_restart *work_restart = NULL;
static struct stratum_ctx stratum;
pthread_mutex_t applog_lock;
static pthread_mutex_t stats_lock;
static unsigned long accepted_count = 0L;
static unsigned long rejected_count = 0L;
static double *thr_hashrates;
uint64_t global_hashrate = 0;
#ifdef HAVE_GETOPT_LONG
#include <getopt.h>
#else
struct option {
const char *name;
int has_arg;
int *flag;
int val;
};
#endif
static char const usage[] = "\
Usage: " PROGRAM_NAME " [OPTIONS]\n\
Options:\n\
-a, --algo=ALGO specify the hash algorithm to use\n\
anime Animecoin\n\
blake Blake 256 (SFR/NEOS)\n\
blakecoin Fast Blake 256 (8 rounds)\n\
deep Deepcoin\n\
dmd-gr Diamond-Groestl\n\
fresh Freshcoin (shavite 80)\n\
fugue256 Fuguecoin\n\
groestl Groestlcoin\n\
heavy Heavycoin\n\
jackpot Jackpot\n\
keccak Keccak-256 (Maxcoin)\n\
luffa Doomcoin\n\
mjollnir Mjollnircoin\n\
myr-gr Myriad-Groestl\n\
nist5 NIST5 (TalkCoin)\n\
penta Pentablake hash (5x Blake 512)\n\
quark Quark\n\
qubit Qubit\n\
s3 S3 (1Coin)\n\
x11 X11 (DarkCoin)\n\
x13 X13 (MaruCoin)\n\
x14 X14\n\
x15 X15\n\
x17 X17 (peoplecurrency)\n\
whirl Whirlcoin (old whirlpool)\n\
-d, --devices Comma separated list of CUDA devices to use.\n\
Device IDs start counting from 0! Alternatively takes\n\
string names of your cards like gtx780ti or gt640#2\n\
(matching 2nd gt640 in the PC)\n\
-f, --diff Divide difficulty by this factor (std is 1) \n\
-v, --vote=VOTE block reward vote (for HeavyCoin)\n\
-m, --trust-pool trust the max block reward vote (maxvote) sent by the pool\n\
-o, --url=URL URL of mining server\n\
-O, --userpass=U:P username:password pair for mining server\n\
-u, --user=USERNAME username for mining server\n\
-p, --pass=PASSWORD password for mining server\n\
--cert=FILE certificate for mining server using SSL\n\
-x, --proxy=[PROTOCOL://]HOST[:PORT] connect through a proxy\n\
-t, --threads=N number of miner threads (default: number of nVidia GPUs)\n\
-r, --retries=N number of times to retry if a network call fails\n\
(default: retry indefinitely)\n\
-R, --retry-pause=N time to pause between retries, in seconds (default: 30)\n\
-T, --timeout=N network timeout, in seconds (default: 270)\n\
-s, --scantime=N upper bound on time spent scanning current work when\n\
long polling is unavailable, in seconds (default: 5)\n\
--no-longpoll disable X-Long-Polling support\n\
--no-stratum disable X-Stratum support\n\
-q, --quiet disable per-thread hashmeter output\n\
-K, --no-color disable colored output\n\
-D, --debug enable debug output\n\
-P, --protocol-dump verbose dump of protocol-level activities\n"
#ifdef HAVE_SYSLOG_H
"\
-S, --syslog use system log for output messages\n"
#endif
#ifndef WIN32
"\
-B, --background run the miner in the background\n"
#endif
"\
--benchmark run in offline benchmark mode\n\
--cputest debug hashes from cpu algorithms\n\
-c, --config=FILE load a JSON-format configuration file\n\
-V, --version display version information and exit\n\
-h, --help display this help text and exit\n\
";
static char const short_options[] =
#ifndef WIN32
"B"
#endif
#ifdef HAVE_SYSLOG_H
"S"
#endif
"a:c:CKDhp:Px:qr:R:s:t:T:o:u:O:Vd:f:mv:";
static struct option const options[] = {
{ "algo", 1, NULL, 'a' },
#ifndef WIN32
{ "background", 0, NULL, 'B' },
#endif
{ "benchmark", 0, NULL, 1005 },
{ "cputest", 0, NULL, 1006 },
{ "cert", 1, NULL, 1001 },
{ "config", 1, NULL, 'c' },
{ "no-color", 0, NULL, 'K' },
{ "debug", 0, NULL, 'D' },
{ "help", 0, NULL, 'h' },
{ "no-longpoll", 0, NULL, 1003 },
{ "no-stratum", 0, NULL, 1007 },
{ "pass", 1, NULL, 'p' },
{ "protocol-dump", 0, NULL, 'P' },
{ "proxy", 1, NULL, 'x' },
{ "quiet", 0, NULL, 'q' },
{ "retries", 1, NULL, 'r' },
{ "retry-pause", 1, NULL, 'R' },
{ "scantime", 1, NULL, 's' },
#ifdef HAVE_SYSLOG_H
{ "syslog", 0, NULL, 'S' },
#endif
{ "threads", 1, NULL, 't' },
{ "vote", 1, NULL, 'v' },
{ "trust-pool", 0, NULL, 'm' },
{ "timeout", 1, NULL, 'T' },
{ "url", 1, NULL, 'o' },
{ "user", 1, NULL, 'u' },
{ "userpass", 1, NULL, 'O' },
{ "version", 0, NULL, 'V' },
{ "devices", 1, NULL, 'd' },
{ "diff", 1, NULL, 'f' },
{ 0, 0, 0, 0 }
};
struct work {
uint32_t data[32];
uint32_t target[8];
uint32_t maxvote;
char job_id[128];
size_t xnonce2_len;
unsigned char xnonce2[32];
union {
uint32_t u32[2];
uint64_t u64[1];
} noncerange;
double difficulty;
uint32_t scanned_from;
uint32_t scanned_to;
};
static struct work _ALIGN(64) g_work;
static time_t g_work_time;
static pthread_mutex_t g_work_lock;
void proper_exit(int reason)
{
cuda_devicereset();
hashlog_purge_all();
exit(reason);
}
static bool jobj_binary(const json_t *obj, const char *key,
void *buf, size_t buflen)
{
const char *hexstr;
json_t *tmp;
tmp = json_object_get(obj, key);
if (unlikely(!tmp)) {
applog(LOG_ERR, "JSON key '%s' not found", key);
return false;
}
hexstr = json_string_value(tmp);
if (unlikely(!hexstr)) {
applog(LOG_ERR, "JSON key '%s' is not a string", key);
return false;
}
if (!hex2bin((unsigned char*)buf, hexstr, buflen))
return false;
return true;
}
static bool work_decode(const json_t *val, struct work *work)
{
int i;
if (unlikely(!jobj_binary(val, "data", work->data, sizeof(work->data)))) {
applog(LOG_ERR, "JSON inval data");
goto err_out;
}
if (unlikely(!jobj_binary(val, "target", work->target, sizeof(work->target)))) {
applog(LOG_ERR, "JSON inval target");
goto err_out;
}
if (opt_algo == ALGO_HEAVY) {
if (unlikely(!jobj_binary(val, "maxvote", &work->maxvote, sizeof(work->maxvote)))) {
work->maxvote = 1024;
}
} else work->maxvote = 0;
for (i = 0; i < ARRAY_SIZE(work->data); i++)
work->data[i] = le32dec(work->data + i);
for (i = 0; i < ARRAY_SIZE(work->target); i++)
work->target[i] = le32dec(work->target + i);
json_t *jr = json_object_get(val, "noncerange");
if (jr) {
const char * hexstr = json_string_value(jr);
if (likely(hexstr)) {
// never seen yet...
hex2bin((unsigned char*)work->noncerange.u64, hexstr, 8);
applog(LOG_DEBUG, "received noncerange: %08x-%08x", work->noncerange.u32[0], work->noncerange.u32[1]);
}
}
/* use work ntime as job id (solo-mining) */
cbin2hex(work->job_id, (const char*)&work->data[17], 4);
return true;
err_out:
return false;
}
/**
* Calculate the work difficulty as double
*/
static void calc_diff(struct work *work, int known)
{
// sample for diff 32.53 : 00000007de5f0000
const uint64_t diffone = 0xFFFF000000000000ull;
uint64_t *data64, d64;
char rtarget[32];
swab256(rtarget, work->target);
data64 = (uint64_t *)(rtarget + 3); /* todo: index (3) can be tuned here */
d64 = swab64(*data64);
if (unlikely(!d64))
d64 = 1;
work->difficulty = (double)diffone / d64;
if (opt_difficulty > 0.) {
work->difficulty /= opt_difficulty;
}
}
static int share_result(int result, const char *reason)
{
char s[345];
double hashrate;
hashrate = 0.;
pthread_mutex_lock(&stats_lock);
for (int i = 0; i < opt_n_threads; i++)
hashrate += thr_hashrates[i];
result ? accepted_count++ : rejected_count++;
pthread_mutex_unlock(&stats_lock);
global_hashrate = llround(hashrate);
sprintf(s, hashrate >= 1e6 ? "%.0f" : "%.2f", 1e-3 * hashrate);
applog(LOG_NOTICE, "accepted: %lu/%lu (%.2f%%), %s khash/s %s",
accepted_count,
accepted_count + rejected_count,
100. * accepted_count / (accepted_count + rejected_count),
s,
use_colors ?
(result ? CL_GRN "yay!!!" : CL_RED "booooo")
: (result ? "(yay!!!)" : "(booooo)"));
if (reason) {
applog(LOG_WARNING, "reject reason: %s", reason);
if (strncmp(reason, "low difficulty share", 20) == 0) {
opt_difficulty = (opt_difficulty * 2.0) / 3.0;
applog(LOG_WARNING, "factor reduced to : %0.2f", opt_difficulty);
return 0;
}
}
return 1;
}
static bool submit_upstream_work(CURL *curl, struct work *work)
{
char *str = NULL;
json_t *val, *res, *reason;
char s[345];
int i;
bool rc = false;
/* pass if the previous hash is not the current previous hash */
pthread_mutex_lock(&g_work_lock);
if (memcmp(work->data + 1, g_work.data + 1, 32)) {
pthread_mutex_unlock(&g_work_lock);
if (opt_debug)
applog(LOG_DEBUG, "DEBUG: stale work detected, discarding");
return true;
}
calc_diff(work, 0);
pthread_mutex_unlock(&g_work_lock);
if (have_stratum) {
uint32_t sent;
uint32_t ntime, nonce;
uint16_t nvote;
char *ntimestr, *noncestr, *xnonce2str, *nvotestr;
le32enc(&ntime, work->data[17]);
le32enc(&nonce, work->data[19]);
be16enc(&nvote, *((uint16_t*)&work->data[20]));
ntimestr = bin2hex((const unsigned char *)(&ntime), 4);
noncestr = bin2hex((const unsigned char *)(&nonce), 4);
xnonce2str = bin2hex(work->xnonce2, work->xnonce2_len);
nvotestr = bin2hex((const unsigned char *)(&nvote), 2);
sent = hashlog_already_submittted(work->job_id, nonce);
if (sent > 0) {
sent = (uint32_t) time(NULL) - sent;
if (!opt_quiet) {
applog(LOG_WARNING, "skip submit, nonce %s was already sent %u seconds ago", noncestr, sent);
hashlog_dump_job(work->job_id);
}
rc = true;
goto out;
}
if (opt_algo == ALGO_HEAVY) {
sprintf(s,
"{\"method\": \"mining.submit\", \"params\": [\"%s\", \"%s\", \"%s\", \"%s\", \"%s\", \"%s\"], \"id\":4}",
rpc_user, work->job_id + 8, xnonce2str, ntimestr, noncestr, nvotestr);
} else {
sprintf(s,
"{\"method\": \"mining.submit\", \"params\": [\"%s\", \"%s\", \"%s\", \"%s\", \"%s\"], \"id\":4}",
rpc_user, work->job_id + 8, xnonce2str, ntimestr, noncestr);
}
free(ntimestr);
free(noncestr);
free(xnonce2str);
free(nvotestr);
if (unlikely(!stratum_send_line(&stratum, s))) {
applog(LOG_ERR, "submit_upstream_work stratum_send_line failed");
goto out;
}
hashlog_remember_submit(work->job_id, nonce, work->scanned_from);
} else {
/* build hex string */
if (opt_algo != ALGO_HEAVY && opt_algo != ALGO_MJOLLNIR) {
for (i = 0; i < ARRAY_SIZE(work->data); i++)
le32enc(work->data + i, work->data[i]);
}
str = bin2hex((unsigned char *)work->data, sizeof(work->data));
if (unlikely(!str)) {
applog(LOG_ERR, "submit_upstream_work OOM");
goto out;
}
/* build JSON-RPC request */
sprintf(s,
"{\"method\": \"getwork\", \"params\": [ \"%s\" ], \"id\":1}\r\n",
str);
/* issue JSON-RPC request */
val = json_rpc_call(curl, rpc_url, rpc_userpass, s, false, false, NULL);
if (unlikely(!val)) {
applog(LOG_ERR, "submit_upstream_work json_rpc_call failed");
goto out;
}
res = json_object_get(val, "result");
reason = json_object_get(val, "reject-reason");
if (!share_result(json_is_true(res), reason ? json_string_value(reason) : NULL))
hashlog_purge_job(work->job_id);
json_decref(val);
}
rc = true;
out:
free(str);
return rc;
}
static const char *rpc_req =
"{\"method\": \"getwork\", \"params\": [], \"id\":0}\r\n";
static bool get_upstream_work(CURL *curl, struct work *work)
{
json_t *val;
bool rc;
struct timeval tv_start, tv_end, diff;
gettimeofday(&tv_start, NULL);
val = json_rpc_call(curl, rpc_url, rpc_userpass, rpc_req,
want_longpoll, false, NULL);
gettimeofday(&tv_end, NULL);
if (have_stratum) {
if (val)
json_decref(val);
return true;
}
if (!val)
return false;
rc = work_decode(json_object_get(val, "result"), work);
if (opt_protocol && rc) {
timeval_subtract(&diff, &tv_end, &tv_start);
/* show time because curl can be slower against versions/config */
applog(LOG_DEBUG, "got new work in %.2f ms",
(1000.0 * diff.tv_sec) + (0.001 * diff.tv_usec));
}
json_decref(val);
return rc;
}
static void workio_cmd_free(struct workio_cmd *wc)
{
if (!wc)
return;
switch (wc->cmd) {
case WC_SUBMIT_WORK:
aligned_free(wc->u.work);
break;
default: /* do nothing */
break;
}
memset(wc, 0, sizeof(*wc)); /* poison */
free(wc);
}
static bool workio_get_work(struct workio_cmd *wc, CURL *curl)
{
struct work *ret_work;
int failures = 0;
ret_work = (struct work*)aligned_calloc(sizeof(*ret_work));
if (!ret_work)
return false;
/* obtain new work from bitcoin via JSON-RPC */
while (!get_upstream_work(curl, ret_work)) {
if (unlikely((opt_retries >= 0) && (++failures > opt_retries))) {
applog(LOG_ERR, "json_rpc_call failed, terminating workio thread");
aligned_free(ret_work);
return false;
}
/* pause, then restart work-request loop */
applog(LOG_ERR, "json_rpc_call failed, retry after %d seconds",
opt_fail_pause);
sleep(opt_fail_pause);
}
/* send work to requesting thread */
if (!tq_push(wc->thr->q, ret_work))
aligned_free(ret_work);
return true;
}
static bool workio_submit_work(struct workio_cmd *wc, CURL *curl)
{
int failures = 0;
/* submit solution to bitcoin via JSON-RPC */
while (!submit_upstream_work(curl, wc->u.work)) {
if (unlikely((opt_retries >= 0) && (++failures > opt_retries))) {
applog(LOG_ERR, "...terminating workio thread");
return false;
}
/* pause, then restart work-request loop */
if (!opt_benchmark)
applog(LOG_ERR, "...retry after %d seconds", opt_fail_pause);
sleep(opt_fail_pause);
}
return true;
}
static void *workio_thread(void *userdata)
{
struct thr_info *mythr = (struct thr_info*)userdata;
CURL *curl;
bool ok = true;
curl = curl_easy_init();
if (unlikely(!curl)) {
applog(LOG_ERR, "CURL initialization failed");
return NULL;
}
while (ok) {
struct workio_cmd *wc;
/* wait for workio_cmd sent to us, on our queue */
wc = (struct workio_cmd *)tq_pop(mythr->q, NULL);
if (!wc) {
ok = false;
break;
}
/* process workio_cmd */
switch (wc->cmd) {
case WC_GET_WORK:
ok = workio_get_work(wc, curl);
break;
case WC_SUBMIT_WORK:
ok = workio_submit_work(wc, curl);
break;
default: /* should never happen */
ok = false;
break;
}
workio_cmd_free(wc);
}
tq_freeze(mythr->q);
curl_easy_cleanup(curl);
return NULL;
}
static bool get_work(struct thr_info *thr, struct work *work)
{
struct workio_cmd *wc;
struct work *work_heap;
if (opt_benchmark) {
memset(work->data, 0x55, 76);
work->data[17] = swab32((uint32_t)time(NULL));
memset(work->data + 19, 0x00, 52);
work->data[20] = 0x80000000;
work->data[31] = 0x00000280;
memset(work->target, 0x00, sizeof(work->target));
return true;
}
/* fill out work request message */
wc = (struct workio_cmd *)calloc(1, sizeof(*wc));
if (!wc)
return false;
wc->cmd = WC_GET_WORK;
wc->thr = thr;
/* send work request to workio thread */
if (!tq_push(thr_info[work_thr_id].q, wc)) {
workio_cmd_free(wc);
return false;
}
/* wait for response, a unit of work */
work_heap = (struct work *)tq_pop(thr->q, NULL);
if (!work_heap)
return false;
/* copy returned work into storage provided by caller */
memcpy(work, work_heap, sizeof(*work));
free(work_heap);
return true;
}
static bool submit_work(struct thr_info *thr, const struct work *work_in)
{
struct workio_cmd *wc;
/* fill out work request message */
wc = (struct workio_cmd *)calloc(1, sizeof(*wc));
if (!wc)
return false;
wc->u.work = (struct work *)aligned_calloc(sizeof(*work_in));
if (!wc->u.work)
goto err_out;
wc->cmd = WC_SUBMIT_WORK;
wc->thr = thr;
memcpy(wc->u.work, work_in, sizeof(*work_in));
/* send solution to workio thread */
if (!tq_push(thr_info[work_thr_id].q, wc))
goto err_out;
return true;
err_out:
workio_cmd_free(wc);
return false;
}
static void stratum_gen_work(struct stratum_ctx *sctx, struct work *work)
{
unsigned char merkle_root[64];
int i;
if (!sctx->job.job_id) {
/* job not yet retrieved */
return;
}
pthread_mutex_lock(&sctx->work_lock);
// store the job ntime as high part of jobid
snprintf(work->job_id, sizeof(work->job_id), "%07x %s",
be32dec(sctx->job.ntime) & 0xfffffff, sctx->job.job_id);
work->xnonce2_len = sctx->xnonce2_size;
memcpy(work->xnonce2, sctx->job.xnonce2, sctx->xnonce2_size);
/* Generate merkle root */
switch (opt_algo) {
case ALGO_HEAVY:
case ALGO_MJOLLNIR:
heavycoin_hash(merkle_root, sctx->job.coinbase, (int)sctx->job.coinbase_size);
break;
case ALGO_FUGUE256:
case ALGO_GROESTL:
case ALGO_KECCAK:
case ALGO_BLAKECOIN:
case ALGO_WHC:
SHA256((uint8_t*)sctx->job.coinbase, sctx->job.coinbase_size, (uint8_t*)merkle_root);
break;
default:
sha256d(merkle_root, sctx->job.coinbase, (int)sctx->job.coinbase_size);
}
for (i = 0; i < sctx->job.merkle_count; i++) {
memcpy(merkle_root + 32, sctx->job.merkle[i], 32);
if (opt_algo == ALGO_HEAVY || opt_algo == ALGO_MJOLLNIR)
heavycoin_hash(merkle_root, merkle_root, 64);
else
sha256d(merkle_root, merkle_root, 64);
}
/* Increment extranonce2 */
for (i = 0; i < (int)sctx->xnonce2_size && !++sctx->job.xnonce2[i]; i++);
/* Assemble block header */
memset(work->data, 0, sizeof(work->data));
work->data[0] = le32dec(sctx->job.version);
for (i = 0; i < 8; i++)
work->data[1 + i] = le32dec((uint32_t *)sctx->job.prevhash + i);
for (i = 0; i < 8; i++)
work->data[9 + i] = be32dec((uint32_t *)merkle_root + i);
work->data[17] = le32dec(sctx->job.ntime);
work->data[18] = le32dec(sctx->job.nbits);
if (opt_algo == ALGO_MJOLLNIR)
{
for (i = 0; i < 20; i++)
work->data[i] = be32dec((uint32_t *)&work->data[i]);
}
work->data[20] = 0x80000000;
work->data[31] = (opt_algo == ALGO_MJOLLNIR) ? 0x000002A0 : 0x00000280;
// HeavyCoin
if (opt_algo == ALGO_HEAVY) {
uint16_t *ext;
work->maxvote = 1024;
ext = (uint16_t*)(&work->data[20]);
ext[0] = opt_vote;
ext[1] = be16dec(sctx->job.nreward);
for (i = 0; i < 20; i++)
work->data[i] = be32dec((uint32_t *)&work->data[i]);
}
//
pthread_mutex_unlock(&sctx->work_lock);
if (opt_debug) {
char *tm = atime2str(swab32(work->data[17]) - sctx->srvtime_diff);
char *xnonce2str = bin2hex(work->xnonce2, sctx->xnonce2_size);
applog(LOG_DEBUG, "DEBUG: job_id=%s xnonce2=%s time=%s",
work->job_id, xnonce2str, tm);
free(tm);
free(xnonce2str);
}
if (opt_algo == ALGO_JACKPOT)
diff_to_target(work->target, sctx->job.diff / (65536.0 * opt_difficulty));
else if (opt_algo == ALGO_FUGUE256 || opt_algo == ALGO_GROESTL || opt_algo == ALGO_DMD_GR || opt_algo == ALGO_FRESH)
diff_to_target(work->target, sctx->job.diff / (256.0 * opt_difficulty));
else if (opt_algo == ALGO_KECCAK)
diff_to_target(work->target, sctx->job.diff / (128.0 * opt_difficulty));
else
diff_to_target(work->target, sctx->job.diff / opt_difficulty);
}
static void *miner_thread(void *userdata)
{
struct thr_info *mythr = (struct thr_info *)userdata;
int thr_id = mythr->id;
struct work work;
uint32_t max_nonce;
uint32_t end_nonce = 0xffffffffU / opt_n_threads * (thr_id + 1) - (thr_id + 1);
bool work_done = false;
bool extrajob = false;
char s[16];
int rc = 0;
memset(&work, 0, sizeof(work)); // prevent work from being used uninitialized
/* Set worker threads to nice 19 and then preferentially to SCHED_IDLE
* and if that fails, then SCHED_BATCH. No need for this to be an
* error if it fails */
if (!opt_benchmark) {
setpriority(PRIO_PROCESS, 0, 19);
drop_policy();
}
/* Cpu affinity only makes sense if the number of threads is a multiple
* of the number of CPUs */
if (num_processors > 1 && opt_n_threads % num_processors == 0) {
if (!opt_quiet)
applog(LOG_DEBUG, "Binding thread %d to cpu %d", thr_id,
thr_id % num_processors);
affine_to_cpu(thr_id, thr_id % num_processors);
}
while (1) {
unsigned long hashes_done;
uint32_t start_nonce;
struct timeval tv_start, tv_end, diff;
int64_t max64;
uint64_t umax64;
// &work.data[19]
int wcmplen = 76;
uint32_t *nonceptr = (uint32_t*) (((char*)work.data) + wcmplen);
if (have_stratum) {
uint32_t sleeptime = 0;
while (!work_done && time(NULL) >= (g_work_time + opt_scantime)) {
usleep(100*1000);
if (sleeptime > 4) {
extrajob = true;
break;
}
sleeptime++;
}
if (sleeptime && opt_debug && !opt_quiet)
applog(LOG_DEBUG, "sleeptime: %u ms", sleeptime*100);
nonceptr = (uint32_t*) (((char*)work.data) + wcmplen);
pthread_mutex_lock(&g_work_lock);
extrajob |= work_done;
if ((*nonceptr) >= end_nonce || extrajob) {
work_done = false;
extrajob = false;