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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 <sys/time.h>
#include <time.h>
#ifdef WIN32
#include <windows.h>
#else
#include <errno.h>
#include <signal.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 <jansson.h>
#include <curl/curl.h>
#include <openssl/sha.h>
#include <cuda_runtime.h>
#include "compat.h"
#include "miner.h"
#ifdef WIN32
#include <Mmsystem.h>
#pragma comment(lib, "winmm.lib")
#endif
#define PROGRAM_NAME "minerd"
#define LP_SCANTIME 60
#define HEAVYCOIN_BLKHDR_SZ 84
#define MNR_BLKHDR_SZ 80
#define JSON_BUF_LEN 345
// from heavy.cu
#ifdef __cplusplus
extern "C"
{
#endif
int cuda_num_devices();
void cuda_deviceinfo();
int cuda_finddevice(char *name);
#ifdef __cplusplus
}
#endif
extern void cryptonight_hash(void* output, const void* input, size_t len);
void parse_device_config(int device, char *config, int *blocks, int *threads);
#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_CRYPTONIGHT
} sha256_algos;
static const char *algo_names[] = {
"cryptonight"
};
bool opt_debug = false;
bool opt_protocol = false;
bool opt_keepalive = 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;
static bool opt_background = false;
static 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_CRYPTONIGHT;
static 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
int device_arch[8][2];
int device_mpcount[8];
int device_bfactor[8];
int device_bsleep[8];
int device_config[8][2];
#ifdef WIN32
static int default_bfactor = 6;
static int default_bsleep = 100;
#else
static int default_bfactor = 0;
static int default_bsleep = 0;
#endif
static char *rpc_url;
static char *rpc_userpass;
static char *rpc_user, *rpc_pass;
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;
int opt_cn_threads = 8;
int opt_cn_blocks = 0;
bool jsonrpc_2 = false;
static char rpc2_id[64] = "";
static char *rpc2_blob = NULL;
static int rpc2_bloblen = 0;
static uint32_t rpc2_target = 0;
static char *rpc2_job_id = NULL;
static pthread_mutex_t rpc2_job_lock;
static pthread_mutex_t rpc2_login_lock;
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;
#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\
-d, --devices takes a 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\
-l, --launch=CONFIG launch config for the Cryptonight kernel.\n\
a comma separated list of values in form of\n\
AxB where A is the number of threads to run in\n\
each thread block and B is the number of thread\n\
blocks to launch. If less values than devices in use\n\
are provided, the last value will be used for\n\
the remaining devices. If you don't need to vary the\n\
value between devices, you can just enter a single value\n\
and it will be used for all devices. (default: 8x40)\n\
--bfactor=X Enables running the Cryptonight kernel in smaller pieces.\n\
The kernel will be run in 2^X parts according to bfactor,\n\
with a small pause between parts, specified by --bsleep.\n\
This is a per-device setting like the launch config.\n\
(default: 0 (no splitting) on Linux, 6 (64 parts) on Windows)\n\
--bsleep=X Insert a delay of X microseconds between kernel launches.\n\
Use in combination with --bfactor to mitigate the lag\n\
when running on your primary GPU.\n\
This is a per-device setting like the launch config.\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\
-k, --keepalive send keepalive requests to avoid a stratum timeout\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\
--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\
-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\
-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:Dhp:Px:kqr:R:s:t:T:o:u:O:Vd:f:ml:";
static struct option const options[] = {
{"algo", 1, NULL, 'a'},
#ifndef WIN32
{"background", 0, NULL, 'B'},
#endif
{"benchmark", 0, NULL, 1005},
{"cert", 1, NULL, 1001},
{"config", 1, NULL, 'c'},
{"debug", 0, NULL, 'D'},
{"help", 0, NULL, 'h'},
{"keepalive", 0, NULL, 'k'},
{"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'},
{"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'},
{"launch", 1, NULL, 'l'},
{"launch-config", 1, NULL, 'l'},
{"bfactor", 1, NULL, 1008},
{"bsleep", 1, NULL, 1009},
{0, 0, 0, 0}
};
static struct work g_work;
static time_t g_work_time;
static pthread_mutex_t g_work_lock;
static bool rpc2_login(CURL *curl);
json_t *json_rpc2_call_recur(CURL *curl, const char *url,
const char *userpass, json_t *rpc_req,
int *curl_err, int flags, int recur)
{
if(recur >= 5)
{
if(opt_debug)
applog(LOG_DEBUG, "Failed to call rpc command after %i tries", recur);
return NULL;
}
if(!strcmp(rpc2_id, ""))
{
if(opt_debug)
applog(LOG_DEBUG, "Tried to call rpc2 command before authentication");
return NULL;
}
json_t *params = json_object_get(rpc_req, "params");
if(params)
{
json_t *auth_id = json_object_get(params, "id");
if(auth_id)
{
json_string_set(auth_id, rpc2_id);
}
}
json_t *res = json_rpc_call(curl, url, userpass, json_dumps(rpc_req, 0), false, false,
curl_err);
if(!res) goto end;
json_t *error = json_object_get(res, "error");
if(!error) goto end;
json_t *message;
if(json_is_string(error))
message = error;
else
message = json_object_get(error, "message");
if(!message || !json_is_string(message)) goto end;
const char *mes = json_string_value(message);
if(!strcmp(mes, "Unauthenticated"))
{
pthread_mutex_lock(&rpc2_login_lock);
rpc2_login(curl);
sleep(1);
pthread_mutex_unlock(&rpc2_login_lock);
return json_rpc2_call_recur(curl, url, userpass, rpc_req,
curl_err, flags, recur + 1);
}
else if(!strcmp(mes, "Low difficulty share") || !strcmp(mes, "Block expired") || !strcmp(mes, "Invalid job id") || !strcmp(mes, "Duplicate share"))
{
json_t *result = json_object_get(res, "result");
if(!result)
{
goto end;
}
json_object_set(result, "reject-reason", json_string(mes));
}
else
{
applog(LOG_ERR, "json_rpc2.0 error: %s", mes);
return NULL;
}
end:
return res;
}
json_t *json_rpc2_call(CURL *curl, const char *url,
const char *userpass, const char *rpc_req,
int *curl_err, int flags)
{
return json_rpc2_call_recur(curl, url, userpass, JSON_LOADS(rpc_req, NULL),
curl_err, flags, 0);
}
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;
}
bool rpc2_job_decode(const json_t *job, struct work *work)
{
if(!jsonrpc_2)
{
applog(LOG_ERR, "Tried to decode job without JSON-RPC 2.0");
return false;
}
json_t *tmp;
tmp = json_object_get(job, "job_id");
if(!tmp)
{
applog(LOG_ERR, "JSON inval job id");
goto err_out;
}
const char *job_id = json_string_value(tmp);
tmp = json_object_get(job, "blob");
if(!tmp)
{
applog(LOG_ERR, "JSON inval blob");
goto err_out;
}
const char *hexblob = json_string_value(tmp);
int blobLen = (int)strlen(hexblob);
if(blobLen % 2 != 0 || ((blobLen / 2) < 40 && blobLen != 0) || (blobLen / 2) > 128)
{
applog(LOG_ERR, "JSON invalid blob length");
goto err_out;
}
if(blobLen != 0)
{
pthread_mutex_lock(&rpc2_job_lock);
char *blob = (char *)malloc(blobLen / 2);
if(!hex2bin((unsigned char *)blob, hexblob, blobLen / 2))
{
applog(LOG_ERR, "JSON inval blob");
pthread_mutex_unlock(&rpc2_job_lock);
goto err_out;
}
if(rpc2_blob)
{
free(rpc2_blob);
}
rpc2_bloblen = blobLen / 2;
rpc2_blob = (char *)malloc(rpc2_bloblen);
memcpy(rpc2_blob, blob, blobLen / 2);
free(blob);
uint32_t target;
jobj_binary(job, "target", &target, 4);
if(rpc2_target != target)
{
double hashrate = 0.;
pthread_mutex_lock(&stats_lock);
for(int i = 0; i < opt_n_threads; i++)
hashrate += thr_hashrates[i];
pthread_mutex_unlock(&stats_lock);
double difficulty = (((double)0xffffffff) / target);
applog(LOG_INFO, "Pool set diff to %g", difficulty);
rpc2_target = target;
}
if(rpc2_job_id)
{
free(rpc2_job_id);
}
rpc2_job_id = strdup(job_id);
pthread_mutex_unlock(&rpc2_job_lock);
}
if(work)
{
if(!rpc2_blob)
{
applog(LOG_ERR, "Requested work before work was received");
goto err_out;
}
memcpy(work->data, rpc2_blob, rpc2_bloblen);
memset(work->target, 0xff, sizeof(work->target));
work->target[7] = rpc2_target;
strncpy(work->job_id, rpc2_job_id, 128);
}
return true;
err_out:
return false;
}
static bool work_decode(const json_t *val, struct work *work)
{
int i;
if(jsonrpc_2)
{
return rpc2_job_decode(val, work);
}
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;
}
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);
return true;
err_out:
return false;
}
bool rpc2_login_decode(const json_t *val)
{
const char *id;
const char *s;
json_t *res = json_object_get(val, "result");
if(!res)
{
applog(LOG_ERR, "JSON invalid result");
goto err_out;
}
json_t *tmp;
tmp = json_object_get(res, "id");
if(!tmp)
{
applog(LOG_ERR, "JSON inval id");
goto err_out;
}
id = json_string_value(tmp);
if(!id)
{
applog(LOG_ERR, "JSON id is not a string");
goto err_out;
}
memcpy(&rpc2_id, id, 64);
if(opt_debug)
applog(LOG_DEBUG, "Auth id: %s", id);
tmp = json_object_get(res, "status");
if(!tmp)
{
applog(LOG_ERR, "JSON inval status");
goto err_out;
}
s = json_string_value(tmp);
if(!s)
{
applog(LOG_ERR, "JSON status is not a string");
goto err_out;
}
if(strcmp(s, "OK"))
{
applog(LOG_ERR, "JSON returned status \"%s\"", s);
return false;
}
return true;
err_out: return false;
}
static void share_result(int result, const char *reason)
{
double hashrate;
int i;
hashrate = 0.;
pthread_mutex_lock(&stats_lock);
for(i = 0; i < opt_n_threads; i++)
hashrate += thr_hashrates[i];
result ? accepted_count++ : rejected_count++;
pthread_mutex_unlock(&stats_lock);
applog(LOG_INFO, "accepted: %lu/%lu (%.2f%%), %.2f H/s %s",
accepted_count, accepted_count + rejected_count,
100. * accepted_count / (accepted_count + rejected_count), hashrate,
result ? "(yay!!!)" : "(booooo)");
if(reason)
applog(LOG_DEBUG, "reject reason: %s", reason);
}
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 */
if(memcmp(work->data + 1, g_work.data + 1, 32))
{
if(opt_debug)
applog(LOG_DEBUG, "DEBUG: stale work detected, discarding");
return true;
}
if(have_stratum)
{
uint32_t ntime, nonce;
uint16_t nvote;
char *ntimestr, *noncestr, *xnonce2str, *nvotestr;
if(jsonrpc_2)
{
noncestr = bin2hex(((const unsigned char*)work->data) + 39, 4);
char hash[32];
cryptonight_hash((void *)hash, (const void *)work->data, 76);
char *hashhex = bin2hex((const unsigned char *)hash, 32);
snprintf(s, JSON_BUF_LEN,
"{\"method\": \"submit\", \"params\": {\"id\": \"%s\", \"job_id\": \"%s\", \"nonce\": \"%s\", \"result\": \"%s\"}, \"id\":1}",
rpc2_id, work->job_id, noncestr, hashhex);
free(hashhex);
}
else
{
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);
sprintf(s,
"{\"method\": \"mining.submit\", \"params\": [\"%s\", \"%s\", \"%s\", \"%s\", \"%s\"], \"id\":4}",
rpc_user, work->job_id, xnonce2str, ntimestr, noncestr);
free(ntimestr);
free(xnonce2str);
free(nvotestr);
}
free(noncestr);
if(unlikely(!stratum_send_line(&stratum, s)))
{
applog(LOG_ERR, "submit_upstream_work stratum_send_line failed");
goto out;
}
}
else
{
/* build JSON-RPC request */
if(jsonrpc_2)
{
char *noncestr = bin2hex(((const unsigned char*)work->data) + 39, 4);
char hash[32];
cryptonight_hash((void *)hash, (const void *)work->data, 76);
char *hashhex = bin2hex((const unsigned char *)hash, 32);
snprintf(s, JSON_BUF_LEN,
"{\"method\": \"submit\", \"params\": {\"id\": \"%s\", \"job_id\": \"%s\", \"nonce\": \"%s\", \"result\": \"%s\"}, \"id\":1}",
rpc2_id, work->job_id, noncestr, hashhex);
free(noncestr);
free(hashhex);
/* issue JSON-RPC request */
val = json_rpc2_call(curl, rpc_url, rpc_userpass, s, NULL, 0);
if(unlikely(!val))
{
applog(LOG_ERR, "submit_upstream_work json_rpc_call failed");
goto out;
}
res = json_object_get(val, "result");
json_t *status = json_object_get(res, "status");
reason = json_object_get(res, "reject-reason");
share_result(!strcmp(status ? json_string_value(status) : "", "OK"),
reason ? json_string_value(reason) : NULL);
}
else
{
/* build hex string */
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");
share_result(json_is_true(res), reason ? json_string_value(reason) : NULL);
}
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);
if(jsonrpc_2)
{
char s[128];
snprintf(s, 128, "{\"method\": \"getjob\", \"params\": {\"id\": \"%s\"}, \"id\":1}\r\n", rpc2_id);
val = json_rpc2_call(curl, rpc_url, rpc_userpass, s, NULL, 0);
}
else
{
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_debug && rc)
{
timeval_subtract(&diff, &tv_end, &tv_start);
applog(LOG_DEBUG, "DEBUG: got new work in %d ms",
diff.tv_sec * 1000 + diff.tv_usec / 1000);
}
json_decref(val);
return rc;
}
static bool rpc2_login(CURL *curl)
{
if(!jsonrpc_2)
{
return false;
}
json_t *val;
bool rc;
struct timeval tv_start, tv_end, diff;
char s[345];
snprintf(s, JSON_BUF_LEN, "{\"method\": \"login\", \"params\": {\"login\": \"%s\", \"pass\": \"%s\", \"agent\": \"" USER_AGENT "\"}, \"id\": 1}", rpc_user, rpc_pass);
gettimeofday(&tv_start, NULL);
val = json_rpc_call(curl, rpc_url, rpc_userpass, s, false, false, NULL);
gettimeofday(&tv_end, NULL);
if(!val)
goto end;
// applog(LOG_DEBUG, "JSON value: %s", json_dumps(val, 0));
rc = rpc2_login_decode(val);
json_t *result = json_object_get(val, "result");
if(!result) goto end;
json_t *job = json_object_get(result, "job");
if(!rpc2_job_decode(job, &g_work))
{
goto end;
}
if(opt_debug && rc)
{
timeval_subtract(&diff, &tv_end, &tv_start);
applog(LOG_DEBUG, "DEBUG: authenticated in %d ms",
diff.tv_sec * 1000 + diff.tv_usec / 1000);
}
json_decref(val);
end:
return rc;
}
static void workio_cmd_free(struct workio_cmd *wc)
{
if(!wc)
return;
switch(wc->cmd)
{
case WC_SUBMIT_WORK:
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*)calloc(1, 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");
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))
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 */
applog(LOG_ERR, "...retry after %d seconds",
opt_fail_pause);
sleep(opt_fail_pause);
}
return true;
}
static bool workio_login(CURL *curl)
{
int failures = 0;
/* submit solution to bitcoin via JSON-RPC */
pthread_mutex_lock(&rpc2_login_lock);
while(!rpc2_login(curl))
{
if(unlikely((opt_retries >= 0) && (++failures > opt_retries)))
{
applog(LOG_ERR, "...terminating workio thread");
pthread_mutex_unlock(&rpc2_login_lock);
return false;
}
/* pause, then restart work-request loop */
applog(LOG_ERR, "...retry after %d seconds", opt_fail_pause);
sleep(opt_fail_pause);
pthread_mutex_unlock(&rpc2_login_lock);
pthread_mutex_lock(&rpc2_login_lock);
}
pthread_mutex_unlock(&rpc2_login_lock);
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;
}
if(!have_stratum && !opt_benchmark)
{
ok = workio_login(curl);
}
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;