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cpu-miner.c
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/*
* Copyright 2010 Jeff Garzik
* Copyright 2012-2014 pooler
* Copyright 2014 Lucas Jones
* Copyright 2014-2016 Tanguy Pruvot
* Copyright 2016-2021 Jay D Dee
*
* 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.
*/
/*
* Change log
*
* 2016-01-14: v 1.9-RC inititial limited release combining
* cpuminer-multi 1.2-prev, darkcoin-cpu-miner 1.3,
* and cp3u 2.3.2 plus some performance optimizations.
*
* 2016-02-04: v3.1 algo_gate implemntation
*/
#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 <sys/time.h>
#include <time.h>
#include <signal.h>
#include <memory.h>
#include <curl/curl.h>
#include <jansson.h>
#include <openssl/sha.h>
#include "sysinfos.c"
#include "algo/sha/sha256d.h"
#ifdef WIN32
#include <winsock2.h>
#include <windows.h>
#endif
#ifdef _MSC_VER
#include <stdint.h>
#else
#include <errno.h>
#if HAVE_SYS_SYSCTL_H
#include <sys/types.h>
#if HAVE_SYS_PARAM_H
#include <sys/param.h>
#endif
// GCC 9 warning sysctl.h is deprecated
#if ( __GNUC__ < 9 )
#include <sys/sysctl.h>
#endif
#endif // HAVE_SYS_SYSCTL_H
#endif // _MSC_VER ELSE
#ifndef WIN32
#include <sys/resource.h>
#endif
#include "miner.h"
#include "algo-gate-api.h"
#ifdef WIN32
#include "compat/winansi.h"
//BOOL WINAPI ConsoleHandler(DWORD);
#endif
#ifdef _MSC_VER
#include <Mmsystem.h>
#pragma comment(lib, "winmm.lib")
#endif
#define LP_SCANTIME 60
algo_gate_t algo_gate;
bool opt_debug = false;
bool opt_debug_diff = false;
bool opt_protocol = false;
bool opt_benchmark = false;
bool opt_redirect = true;
bool opt_extranonce = true;
bool want_longpoll = false;
bool have_longpoll = false;
bool have_gbt = true;
bool allow_getwork = true;
bool want_stratum = true; // pretty useless
bool have_stratum = false;
bool stratum_down = true;
bool allow_mininginfo = true;
bool use_syslog = false;
bool use_colors = true;
static bool opt_background = false;
bool opt_quiet = false;
bool opt_randomize = false;
static int opt_retries = -1;
static int opt_fail_pause = 10;
static int opt_time_limit = 0;
static unsigned int time_limit_stop = 0;
int opt_timeout = 300;
static int opt_scantime = 0;
const int min_scantime = 1;
//static const bool opt_time = true;
enum algos opt_algo = ALGO_NULL;
char* opt_param_key = NULL;
int opt_param_n = 0;
int opt_param_r = 0;
int opt_n_threads = 0;
bool opt_sapling = false;
static uint64_t opt_affinity = 0xFFFFFFFFFFFFFFFFULL; // default, use all cores
int opt_priority = 0; // deprecated
int num_cpus = 1;
int num_cpugroups = 1; // For Windows
#define max_cpus 256 // max for affinity
char *rpc_url = NULL;
char *rpc_userpass = NULL;
char *rpc_user, *rpc_pass;
char *short_url = NULL;
char *coinbase_address;
char *opt_data_file = NULL;
bool opt_verify = false;
static bool opt_stratum_keepalive = false;
static struct timeval stratum_keepalive_timer;
// Stratum typically times out in 5 minutes or 300 seconds
#define stratum_keepalive_timeout 150 // 2.5 minutes
static struct timeval stratum_reset_time;
// pk_buffer_size is used as a version selector by b58 code, therefore
// it must be set correctly to work.
const int pk_buffer_size_max = 26;
int pk_buffer_size = 25;
static unsigned char pk_script[ 26 ] = { 0 };
static size_t pk_script_size = 0;
static char coinbase_sig[101] = { 0 };
char *opt_cert;
char *opt_proxy;
long opt_proxy_type;
struct thr_info *thr_info;
int work_thr_id;
int longpoll_thr_id = -1;
int stratum_thr_id = -1;
int api_thr_id = -1;
bool stratum_need_reset = false;
struct work_restart *work_restart = NULL;
struct stratum_ctx stratum;
double opt_diff_factor = 1.0;
double opt_target_factor = 1.0;
uint32_t zr5_pok = 0;
bool opt_stratum_stats = false;
bool opt_hash_meter = false;
uint32_t submitted_share_count= 0;
uint32_t accepted_share_count = 0;
uint32_t rejected_share_count = 0;
uint32_t stale_share_count = 0;
uint32_t solved_block_count = 0;
uint32_t stratum_errors = 0;
double *thr_hashrates;
double global_hashrate = 0.;
double total_hashes = 0.;
struct timeval total_hashes_time = {0,0};
double stratum_diff = 0.;
double net_diff = 0.;
double net_hashrate = 0.;
uint64_t net_blocks = 0;
uint32_t opt_work_size = 0;
// conditional mining
bool conditional_state[MAX_CPUS] = { 0 };
double opt_max_temp = 0.0;
double opt_max_diff = 0.0;
double opt_max_rate = 0.0;
// API
static bool opt_api_enabled = false;
char *opt_api_allow = NULL;
int opt_api_listen = 0;
int opt_api_remote = 0;
char *default_api_allow = "127.0.0.1";
int default_api_listen = 4048;
pthread_mutex_t applog_lock;
pthread_mutex_t stats_lock;
static struct timeval session_start;
static struct timeval five_min_start;
static uint64_t session_first_block = 0;
static uint64_t submit_sum = 0;
static uint64_t accept_sum = 0;
static uint64_t stale_sum = 0;
static uint64_t reject_sum = 0;
static uint64_t solved_sum = 0;
static double norm_diff_sum = 0.;
static uint32_t last_block_height = 0;
static double highest_share = 0; // highest accepted share diff
static double lowest_share = 9e99; // lowest accepted share diff
static double last_targetdiff = 0.;
#if !(defined(__WINDOWS__) || defined(_WIN64) || defined(_WIN32))
static uint32_t hi_temp = 0;
static uint32_t prev_temp = 0;
#endif
static char const short_options[] =
#ifdef HAVE_SYSLOG_H
"S"
#endif
"a:b:Bc:CDf:hK:m:n:N:p:Px:qr:R:s:t:T:o:u:O:V";
static struct work g_work __attribute__ ((aligned (64))) = {{ 0 }};
time_t g_work_time = 0;
pthread_rwlock_t g_work_lock;
static bool submit_old = false;
char* lp_id;
static void workio_cmd_free(struct workio_cmd *wc);
// array mapping thread to cpu
static uint8_t thread_affinity_map[ max_cpus ];
// display affinity mask graphically
static void format_affinity_mask( char *mask_str, uint64_t mask )
{
#if defined(WINDOWS_CPU_GROUPS_ENABLED)
int n = num_cpus / num_cpugroups;
#else
int n = num_cpus < 64 ? num_cpus : 64;
#endif
int i;
for ( i = 0; i < n; i++ )
{
if ( mask & 1 ) mask_str[i] = '!';
else mask_str[i] = '.';
mask >>= 1;
}
memset( &mask_str[i], 0, 64 - i );
}
#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
}
#ifdef __BIONIC__
#define pthread_setaffinity_np(tid,sz,s) {} /* only do process affinity */
#endif
static void affine_to_cpu( struct thr_info *thr )
{
int thread = thr->id;
cpu_set_t set;
CPU_ZERO( &set );
CPU_SET( thread_affinity_map[ thread ], &set );
if ( opt_debug )
applog( LOG_INFO, "Binding thread %d to cpu %d",
thread, thread_affinity_map[ thread ] );
pthread_setaffinity_np( thr->pth, sizeof(set), &set );
}
#elif defined(WIN32) /* Windows */
static inline void drop_policy(void) { }
// Windows CPU groups to manage more than 64 CPUs.
// mask arg is ignored
static void affine_to_cpu( struct thr_info *thr )
{
int thread = thr->id;
unsigned long last_error;
bool ok;
#if defined(WINDOWS_CPU_GROUPS_ENABLED)
unsigned long group_size = GetActiveProcessorCount( 0 );
unsigned long group = thread / group_size;
unsigned long cpu = thread_affinity_map[ thread % group_size ];
GROUP_AFFINITY affinity;
affinity.Group = group;
affinity.Mask = 1ULL << cpu;
if ( opt_debug )
applog( LOG_INFO, "Binding thread %d to cpu %d in cpu group %d",
thread, cpu, group );
ok = SetThreadGroupAffinity( GetCurrentThread(), &affinity, NULL );
#else
unsigned long cpu = thread_affinity_map[ thread ];
uint64_t mask = 1ULL << cpu;
if ( opt_debug )
applog( LOG_INFO, "Binding thread %d to cpu %d", thread, cpu );
ok = SetThreadAffinityMask( GetCurrentThread(), mask );
#endif
if ( !ok )
{
last_error = GetLastError();
applog( LOG_WARNING, "affine_to_cpu_mask for %u returned 0x%x",
thread, last_error );
}
}
#else
static inline void drop_policy(void) { }
static void affine_to_cpu( struct thr_info *thr ) { }
#endif
// not very useful, just index the arrray directly.
// but declaring this function in miner.h eliminates
// an annoying compiler warning for not using a static.
const char* algo_name( enum algos a ) {return algo_names[a];}
void get_currentalgo(char* buf, int sz)
{
snprintf(buf, sz, "%s", algo_names[opt_algo]);
}
void proper_exit(int reason)
{
if (opt_debug) applog(LOG_INFO,"Program exit");
#ifdef WIN32
if (opt_background) {
HWND hcon = GetConsoleWindow();
if (hcon) {
// unhide parent command line windows
ShowWindow(hcon, SW_SHOWMINNOACTIVE);
}
}
#endif
exit(reason);
}
uint32_t* get_stratum_job_ntime()
{
return (uint32_t*)stratum.job.ntime;
}
void work_free(struct work *w)
{
if (w->txs) free(w->txs);
if (w->workid) free(w->workid);
if (w->job_id) free(w->job_id);
if (w->xnonce2) free(w->xnonce2);
}
void work_copy(struct work *dest, const struct work *src)
{
memcpy(dest, src, sizeof(struct work));
if (src->txs)
dest->txs = strdup(src->txs);
if (src->workid)
dest->workid = strdup(src->workid);
if (src->job_id)
dest->job_id = strdup(src->job_id);
if (src->xnonce2) {
dest->xnonce2 = (uchar*) malloc(src->xnonce2_len);
memcpy(dest->xnonce2, src->xnonce2, src->xnonce2_len);
}
}
int std_get_work_data_size() { return STD_WORK_DATA_SIZE; }
// Default
bool std_le_work_decode( struct work *work )
{
int i;
const int adata_sz = algo_gate.get_work_data_size() / 4;
// const int atarget_sz = ARRAY_SIZE(work->target);
for ( i = 0; i < adata_sz; i++ )
work->data[i] = le32dec( work->data + i );
for ( i = 0; i < 8; i++ )
work->target[i] = le32dec( work->target + i );
return true;
}
bool std_be_work_decode( struct work *work )
{
int i;
const int adata_sz = algo_gate.get_work_data_size() / 4;
// const int atarget_sz = ARRAY_SIZE(work->target);
for ( i = 0; i < adata_sz; i++ )
work->data[i] = be32dec( work->data + i );
for ( i = 0; i < 8; i++ )
work->target[i] = le32dec( work->target + i );
return true;
}
static bool work_decode( const json_t *val, struct work *work )
{
const int data_size = algo_gate.get_work_data_size();
const int target_size = sizeof(work->target);
if (unlikely( !jobj_binary(val, "data", work->data, data_size) ))
{
applog(LOG_ERR, "JSON invalid data");
return false;
}
if (unlikely( !jobj_binary(val, "target", work->target, target_size) ))
{
applog(LOG_ERR, "JSON invalid target");
return false;
}
if ( unlikely( !algo_gate.work_decode( work ) ) )
return false;
if ( !allow_mininginfo )
net_diff = algo_gate.calc_network_diff( work );
else
net_diff = hash_to_diff( work->target );
work->targetdiff = net_diff;
stratum_diff = last_targetdiff = work->targetdiff;
work->sharediff = 0;
algo_gate.decode_extra_data( work, &net_blocks );
return true;
}
// good alternative for wallet mining, difficulty and net hashrate
static const char *info_req =
"{\"method\": \"getmininginfo\", \"params\": [], \"id\":8}\r\n";
static bool get_mininginfo( CURL *curl, struct work *work )
{
if ( have_stratum || !allow_mininginfo )
return false;
int curl_err = 0;
json_t *val = json_rpc_call( curl, rpc_url, rpc_userpass, info_req,
&curl_err, 0 );
if ( !val && curl_err == -1 )
{
allow_mininginfo = false;
applog( LOG_NOTICE, "\"getmininginfo\" not supported, some stats not available" );
return false;
}
json_t *res = json_object_get( val, "result" );
// "blocks": 491493 (= current work height - 1)
// "difficulty": 0.99607860999999998
// "networkhashps": 56475980
if ( res )
{
// net_diff is a global that is set from the work hash target by
// both getwork and GBT. Don't overwrite it, define a local to override
// the global.
double net_diff = 0.;
json_t *key = json_object_get( res, "difficulty" );
if ( key )
{
if ( json_is_object( key ) )
key = json_object_get( key, "proof-of-work" );
if ( json_is_real( key ) )
net_diff = json_real_value( key );
}
key = json_object_get( res, "networkhashps" );
if ( key )
{
if ( json_is_integer( key ) )
net_hashrate = (double) json_integer_value( key );
else if ( json_is_real( key ) )
net_hashrate = (double) json_real_value( key );
}
key = json_object_get( res, "blocks" );
if ( key && json_is_integer( key ) )
net_blocks = json_integer_value( key );
if ( opt_debug )
applog(LOG_INFO,"Mining info: diff %.5g, net_hashrate %f, height %d",
net_diff, net_hashrate, net_blocks );
if ( !work->height )
{
// complete missing data from getwork
work->height = (uint32_t) net_blocks + 1;
if ( work->height > g_work.height )
restart_threads();
} // res
}
json_decref( val );
return true;
}
// hodl needs 4 but leave it at 3 until gbt better understood
//#define BLOCK_VERSION_CURRENT 3
#define BLOCK_VERSION_CURRENT 4
static bool gbt_work_decode( const json_t *val, struct work *work )
{
uint32_t prevhash[8] __attribute__ ((aligned (32)));
uint32_t target[8] __attribute__ ((aligned (32)));
unsigned char final_sapling_hash[32] __attribute__ ((aligned (32)));
uint32_t version, curtime, bits;
int cbtx_size;
uchar *cbtx = NULL;
int tx_count, tx_size;
uchar txc_vi[9];
uchar(*merkle_tree)[32] = NULL;
bool coinbase_append = false;
bool submit_coinbase = false;
bool version_force = false;
bool version_reduce = false;
json_t *tmp, *txa;
bool rc = false;
int i, n;
// Segwit BEGIN
bool segwit = false;
tmp = json_object_get( val, "rules" );
if ( tmp && json_is_array( tmp ) )
{
n = json_array_size( tmp );
for ( i = 0; i < n; i++ )
{
const char *s = json_string_value( json_array_get( tmp, i ) );
if ( !s )
continue;
if ( !strcmp( s, "segwit" ) || !strcmp( s, "!segwit" ) )
{
segwit = true;
if ( opt_debug )
applog( LOG_INFO, "GBT: SegWit is enabled" );
}
}
}
// Segwit END
tmp = json_object_get( val, "mutable" );
if ( tmp && json_is_array( tmp ) )
{
n = (int) json_array_size( tmp );
for ( i = 0; i < n; i++ )
{
const char *s = json_string_value( json_array_get( tmp, i ) );
if ( !s )
continue;
if ( !strcmp( s, "coinbase/append" ) ) coinbase_append = true;
else if ( !strcmp( s, "submit/coinbase" ) ) submit_coinbase = true;
else if ( !strcmp( s, "version/force" ) ) version_force = true;
else if ( !strcmp( s, "version/reduce" ) ) version_reduce = true;
}
}
tmp = json_object_get( val, "height" );
if ( !tmp || !json_is_integer( tmp ) )
{
applog( LOG_ERR, "JSON invalid height" );
goto out;
}
work->height = (int) json_integer_value( tmp );
tmp = json_object_get(val, "version");
if ( !tmp || !json_is_integer( tmp ) )
{
applog( LOG_ERR, "JSON invalid version" );
goto out;
}
version = (uint32_t) json_integer_value( tmp );
// yescryptr8g uses block version 5 and sapling.
if ( opt_sapling )
work->sapling = true;
if ( (version & 0xffU) > BLOCK_VERSION_CURRENT )
{
if ( version_reduce )
version = ( version & ~0xffU ) | BLOCK_VERSION_CURRENT;
else if ( have_gbt && allow_getwork && !version_force )
{
applog( LOG_DEBUG, "Switching to getwork, gbt version %d", version );
have_gbt = false;
goto out;
}
else if ( !version_force )
{
applog(LOG_ERR, "Unrecognized block version: %u", version);
goto out;
}
}
if ( unlikely( !jobj_binary(val, "previousblockhash", prevhash,
sizeof(prevhash)) ) )
{
applog( LOG_ERR, "JSON invalid previousblockhash" );
goto out;
}
tmp = json_object_get( val, "curtime" );
if ( !tmp || !json_is_integer( tmp ) )
{
applog( LOG_ERR, "JSON invalid curtime" );
goto out;
}
curtime = (uint32_t) json_integer_value(tmp);
if ( unlikely( !jobj_binary( val, "bits", &bits, sizeof(bits) ) ) )
{
applog(LOG_ERR, "JSON invalid bits");
goto out;
}
if ( work->sapling )
{
if ( unlikely( !jobj_binary( val, "finalsaplingroothash",
final_sapling_hash, sizeof(final_sapling_hash) ) ) )
{
applog( LOG_ERR, "JSON invalid finalsaplingroothash" );
goto out;
}
}
/* find count and size of transactions */
txa = json_object_get(val, "transactions" );
if ( !txa || !json_is_array( txa ) )
{
applog( LOG_ERR, "JSON invalid transactions" );
goto out;
}
tx_count = (int) json_array_size( txa );
tx_size = 0;
for ( i = 0; i < tx_count; i++ )
{
const json_t *tx = json_array_get( txa, i );
const char *tx_hex = json_string_value( json_object_get( tx, "data" ) );
if ( !tx_hex )
{
applog( LOG_ERR, "JSON invalid transactions" );
goto out;
}
tx_size += (int) ( strlen( tx_hex ) / 2 );
}
/* build coinbase transaction */
tmp = json_object_get( val, "coinbasetxn" );
if ( tmp )
{
const char *cbtx_hex = json_string_value( json_object_get( tmp, "data" ));
cbtx_size = cbtx_hex ? (int) strlen( cbtx_hex ) / 2 : 0;
cbtx = (uchar*) malloc( cbtx_size + 100 );
if ( cbtx_size < 60 || !hex2bin( cbtx, cbtx_hex, cbtx_size ) )
{
applog( LOG_ERR, "JSON invalid coinbasetxn" );
goto out;
}
}
else
{
int64_t cbvalue;
if ( !pk_script_size )
{
if ( allow_getwork )
{
applog( LOG_INFO, "No payout address provided, switching to getwork");
have_gbt = false;
}
else
applog( LOG_ERR, "No payout address provided" );
goto out;
}
tmp = json_object_get( val, "coinbasevalue" );
if ( !tmp || !json_is_number( tmp ) )
{
applog( LOG_ERR, "JSON invalid coinbasevalue" );
goto out;
}
cbvalue = (int64_t) ( json_is_integer( tmp ) ? json_integer_value( tmp )
: json_number_value( tmp ) );
cbtx = (uchar*) malloc(256);
le32enc( (uint32_t *)cbtx, 1 ); /* version */
cbtx[4] = 1; /* in-counter */
memset( cbtx+5, 0x00, 32 ); /* prev txout hash */
le32enc( (uint32_t *)(cbtx+37), 0xffffffff ); /* prev txout index */
cbtx_size = 43;
/* BIP 34: height in coinbase */
for ( n = work->height; n; n >>= 8 )
cbtx[cbtx_size++] = n & 0xff;
/* If the last byte pushed is >= 0x80, then we need to add
another zero byte to signal that the block height is a
positive number. */
if (cbtx[cbtx_size - 1] & 0x80)
cbtx[cbtx_size++] = 0;
cbtx[42] = cbtx_size - 43;
cbtx[41] = cbtx_size - 42; /* scriptsig length */
le32enc( (uint32_t *)( cbtx+cbtx_size ), 0xffffffff ); /* sequence */
cbtx_size += 4;
// Segwit BEGIN
//cbtx[cbtx_size++] = 1; /* out-counter */
cbtx[cbtx_size++] = segwit ? 2 : 1; /* out-counter */
// Segwit END
le32enc( (uint32_t *)( cbtx+cbtx_size) , (uint32_t)cbvalue ); /* value */
le32enc( (uint32_t *)( cbtx+cbtx_size+4 ), cbvalue >> 32 );
cbtx_size += 8;
cbtx[ cbtx_size++ ] = (uint8_t) pk_script_size; /* txout-script length */
memcpy( cbtx+cbtx_size, pk_script, pk_script_size );
cbtx_size += (int) pk_script_size;
// Segwit BEGIN
if ( segwit )
{
unsigned char (*wtree)[32] = calloc(tx_count + 2, 32);
memset(cbtx+cbtx_size, 0, 8); /* value */
cbtx_size += 8;
cbtx[cbtx_size++] = 38; /* txout-script length */
cbtx[cbtx_size++] = 0x6a; /* txout-script */
cbtx[cbtx_size++] = 0x24;
cbtx[cbtx_size++] = 0xaa;
cbtx[cbtx_size++] = 0x21;
cbtx[cbtx_size++] = 0xa9;
cbtx[cbtx_size++] = 0xed;
for ( i = 0; i < tx_count; i++ )
{
const json_t *tx = json_array_get( txa, i );
const json_t *hash = json_object_get(tx, "hash" );
if ( !hash || !hex2bin( wtree[1+i],
json_string_value( hash ), 32 ) )
{
applog(LOG_ERR, "JSON invalid transaction hash");
free(wtree);
goto out;
}
memrev( wtree[1+i], 32 );
}
n = tx_count + 1;
while ( n > 1 )
{
if ( n % 2 )
memcpy( wtree[n], wtree[n-1], 32 );
n = ( n + 1 ) / 2;
for ( i = 0; i < n; i++ )
sha256d( wtree[i], wtree[2*i], 64 );
}
memset( wtree[1], 0, 32 ); /* witness reserved value = 0 */
sha256d( cbtx+cbtx_size, wtree[0], 64 );
cbtx_size += 32;
free( wtree );
}
// Segwit END
le32enc( (uint32_t *)( cbtx+cbtx_size ), 0 ); /* lock time */
cbtx_size += 4;
coinbase_append = true;
}
if ( coinbase_append )
{
unsigned char xsig[100];
int xsig_len = 0;
if ( *coinbase_sig )
{
n = (int) strlen( coinbase_sig );
if ( cbtx[41] + xsig_len + n <= 100 )
{
memcpy( xsig+xsig_len, coinbase_sig, n );
xsig_len += n;
}
else
{
applog( LOG_WARNING,
"Signature does not fit in coinbase, skipping" );
}
}
tmp = json_object_get( val, "coinbaseaux" );
if ( tmp && json_is_object( tmp ) )
{
void *iter = json_object_iter( tmp );
while ( iter )
{
unsigned char buf[100];
const char *s = json_string_value( json_object_iter_value( iter ) );
n = s ? (int) ( strlen(s) / 2 ) : 0;
if ( !s || n > 100 || !hex2bin( buf, s, n ) )
{
applog(LOG_ERR, "JSON invalid coinbaseaux");
break;
}
if ( cbtx[41] + xsig_len + n <= 100 )
{
memcpy( xsig+xsig_len, buf, n );
xsig_len += n;
}
iter = json_object_iter_next( tmp, iter );
}
}
if ( xsig_len )
{
unsigned char *ssig_end = cbtx + 42 + cbtx[41];
int push_len = cbtx[41] + xsig_len < 76 ? 1 :
cbtx[41] + 2 + xsig_len > 100 ? 0 : 2;
n = xsig_len + push_len;
memmove( ssig_end + n, ssig_end, cbtx_size - 42 - cbtx[41] );
cbtx[41] += n;
if ( push_len == 2 )
*(ssig_end++) = 0x4c; /* OP_PUSHDATA1 */
if ( push_len )
*(ssig_end++) = xsig_len;
memcpy( ssig_end, xsig, xsig_len );
cbtx_size += n;
}
}
n = varint_encode( txc_vi, 1 + tx_count );
work->txs = (char*) malloc( 2 * ( n + cbtx_size + tx_size ) + 1 );
bin2hex( work->txs, txc_vi, n );
bin2hex( work->txs + 2*n, cbtx, cbtx_size );
/* generate merkle root */
merkle_tree = (uchar(*)[32]) calloc( ( (1 + tx_count + 1) & ~1 ), 32 );
sha256d( merkle_tree[0], cbtx, cbtx_size );
for ( i = 0; i < tx_count; i++ )
{
tmp = json_array_get( txa, i );
const char *tx_hex = json_string_value( json_object_get( tmp, "data" ) );
const int tx_size = tx_hex ? (int) ( strlen( tx_hex ) / 2 ) : 0;
// Segwit BEGIN
if ( segwit )
{
const char *txid = json_string_value( json_object_get( tmp, "txid" ) );
if ( !txid || !hex2bin( merkle_tree[1 + i], txid, 32 ) )
{
applog(LOG_ERR, "JSON invalid transaction txid");
goto out;
}
memrev( merkle_tree[1 + i], 32 );
}
else
{
// Segwit END
unsigned char *tx = (uchar*) malloc( tx_size );
if ( !tx_hex || !hex2bin( tx, tx_hex, tx_size ) )
{
applog( LOG_ERR, "JSON invalid transactions" );
free( tx );
goto out;
}
sha256d( merkle_tree[1 + i], tx, tx_size );
free( tx );
// Segwit BEGIN
}
// Segwit END
if ( !submit_coinbase )
strcat( work->txs, tx_hex );
}
n = 1 + tx_count;
while ( n > 1 )
{
if ( n % 2 )
{
memcpy( merkle_tree[n], merkle_tree[n-1], 32 );
++n;
}
n /= 2;
for ( i = 0; i < n; i++ )
sha256d( merkle_tree[i], merkle_tree[2*i], 64 );
}
/* assemble block header */
algo_gate.build_block_header( work, swab32( version ),
(uint32_t*) prevhash, (uint32_t*) merkle_tree,
swab32( curtime ), le32dec( &bits ),
final_sapling_hash );
if ( unlikely( !jobj_binary( val, "target", target, sizeof(target) ) ) )
{
applog( LOG_ERR, "JSON invalid target" );
goto out;
}
// See git issue https://github.com/JayDDee/cpuminer-opt/issues/379
#if defined(__AVX2__)
if ( opt_debug )
{
if ( (uint64_t)target % 32 )
applog( LOG_ERR, "Misaligned target %p", target );
if ( (uint64_t)(work->target) % 32 )
applog( LOG_ERR, "Misaligned work->target %p", work->target );
}
#endif
for ( i = 0; i < 8; i++ )
work->target[7 - i] = be32dec( target + i );
net_diff = work->targetdiff = hash_to_diff( work->target );
tmp = json_object_get( val, "workid" );
if ( tmp )
{
if ( !json_is_string( tmp ) )
{
applog( LOG_ERR, "JSON invalid workid" );
goto out;
}
work->workid = strdup( json_string_value( tmp ) );
}
rc = true;
out:
/* Long polling */
tmp = json_object_get( val, "longpollid" );
if ( want_longpoll && json_is_string( tmp ) )
{
free( lp_id );
lp_id = strdup( json_string_value( tmp ) );
if ( !have_longpoll )
{
char *lp_uri;
tmp = json_object_get( val, "longpolluri" );
lp_uri = json_is_string( tmp ) ? strdup( json_string_value( tmp ) )
: rpc_url;
have_longpoll = true;
tq_push(thr_info[longpoll_thr_id].q, lp_uri);
}
}
free( merkle_tree );
free( cbtx );
return rc;
}
// returns the unit prefix and the hashrate appropriately scaled.
void scale_hash_for_display ( double* hashrate, char* prefix )
{
if ( *hashrate < 1e4 ) *prefix = 0;
else if ( *hashrate < 1e7 ) { *prefix = 'k'; *hashrate /= 1e3; }
else if ( *hashrate < 1e10 ) { *prefix = 'M'; *hashrate /= 1e6; }
else if ( *hashrate < 1e13 ) { *prefix = 'G'; *hashrate /= 1e9; }
else if ( *hashrate < 1e16 ) { *prefix = 'T'; *hashrate /= 1e12; }
else if ( *hashrate < 1e19 ) { *prefix = 'P'; *hashrate /= 1e15; }
else if ( *hashrate < 1e22 ) { *prefix = 'E'; *hashrate /= 1e18; }
else if ( *hashrate < 1e25 ) { *prefix = 'Z'; *hashrate /= 1e21; }
else { *prefix = 'Y'; *hashrate /= 1e24; }
}
static inline void sprintf_et( char *str, long unsigned int seconds )
{
long unsigned int min = seconds / 60;
long unsigned int sec = seconds % 60;
long unsigned int hrs = min / 60;
if ( unlikely( hrs ) )
{
long unsigned int days = hrs / 24;
long unsigned int years = days / 365;
if ( years ) // 0y000d
sprintf( str, "%luy%lud", years, years % 365 );
else if ( days ) // 0d00h
sprintf( str, "%lud%02luh", days, hrs % 24 );
else // 0h00m
sprintf( str, "%luh%02lum", hrs, min % 60 );
}
else // 0m00s
sprintf( str, "%lum%02lus", min, sec );
}
const long double exp32 = EXP32; // 2**32
const long double exp48 = EXP32 * EXP16; // 2**48
const long double exp64 = EXP32 * EXP32; // 2**64
const long double exp96 = EXP32 * EXP32 * EXP32; // 2**96
const long double exp128 = EXP32 * EXP32 * EXP32 * EXP32; // 2**128
const long double exp160 = EXP32 * EXP32 * EXP32 * EXP32 * EXP16; // 2**160
struct share_stats_t
{
int share_count;
struct timeval submit_time;
double net_diff;
double share_diff;
double stratum_diff;
double target_diff;