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main.c
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main.c
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/*
* Copyright 2011 Con Kolivas
* Copyright 2010 Jeff Garzik
*
* 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 "config.h"
#include <curses.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <stdbool.h>
#include <stdint.h>
#include <unistd.h>
#include <sys/time.h>
#include <time.h>
#include <math.h>
#include <stdarg.h>
#include <assert.h>
#include <signal.h>
#ifndef WIN32
#include <sys/resource.h>
#endif
#include <ccan/opt/opt.h>
#include <jansson.h>
#include <curl/curl.h>
#include "compat.h"
#include "miner.h"
#include "findnonce.h"
#include "ocl.h"
#define PROGRAM_NAME "cgminer"
#define DEF_RPC_URL "http://127.0.0.1:8332/"
#define DEF_RPC_USERNAME "rpcuser"
#define DEF_RPC_PASSWORD "rpcpass"
#define DEF_RPC_USERPASS DEF_RPC_USERNAME ":" DEF_RPC_PASSWORD
#ifdef __linux /* Linux specific policy and affinity management */
#include <sched.h>
static inline void drop_policy(void)
{
struct sched_param param;
#ifdef SCHED_BATCH
#ifdef SCHED_IDLE
if (unlikely(sched_setscheduler(0, SCHED_IDLE, ¶m) == -1))
#endif
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);
applog(LOG_INFO, "Binding cpu mining thread %d to cpu %d", id, cpu);
}
#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,
WC_DIE,
};
struct workio_cmd {
enum workio_commands cmd;
struct thr_info *thr;
union {
struct work *work;
} u;
};
enum sha256_algos {
ALGO_C, /* plain C */
ALGO_4WAY, /* parallel SSE2 */
ALGO_VIA, /* VIA padlock */
ALGO_CRYPTOPP, /* Crypto++ (C) */
ALGO_CRYPTOPP_ASM32, /* Crypto++ 32-bit assembly */
ALGO_SSE2_64, /* SSE2 for x86_64 */
ALGO_SSE4_64, /* SSE4 for x86_64 */
};
static const char *algo_names[] = {
[ALGO_C] = "c",
#ifdef WANT_SSE2_4WAY
[ALGO_4WAY] = "4way",
#endif
#ifdef WANT_VIA_PADLOCK
[ALGO_VIA] = "via",
#endif
[ALGO_CRYPTOPP] = "cryptopp",
#ifdef WANT_CRYPTOPP_ASM32
[ALGO_CRYPTOPP_ASM32] = "cryptopp_asm32",
#endif
#ifdef WANT_X8664_SSE2
[ALGO_SSE2_64] = "sse2_64",
#endif
#ifdef WANT_X8664_SSE4
[ALGO_SSE4_64] = "sse4_64",
#endif
};
bool opt_debug = false;
bool opt_protocol = false;
bool want_longpoll = true;
bool have_longpoll = false;
bool use_syslog = false;
static bool opt_quiet = false;
static int opt_retries = -1;
static int opt_fail_pause = 5;
static int opt_log_interval = 5;
bool opt_log_output = false;
static bool opt_dynamic = true;
static int opt_queue;
int opt_vectors;
int opt_worksize;
int opt_scantime = 60;
static const bool opt_time = true;
#ifdef WANT_X8664_SSE4
static enum sha256_algos opt_algo = ALGO_SSE4_64;
#elif WANT_X8664_SSE2
static enum sha256_algos opt_algo = ALGO_SSE2_64;
#else
static enum sha256_algos opt_algo = ALGO_C;
#endif
static int nDevs;
static int opt_g_threads = 2;
static int opt_device;
static int total_devices;
static bool gpu_devices[16];
static int gpu_threads;
static bool forced_n_threads;
static int opt_n_threads;
static int mining_threads;
static int num_processors;
static int scan_intensity;
static bool use_curses = true;
static char *rpc_url;
static char *rpc_userpass;
static char *rpc_user, *rpc_pass;
struct thr_info *thr_info;
static int work_thr_id;
int longpoll_thr_id;
static int stage_thr_id;
static int watchdog_thr_id;
struct work_restart *work_restart = NULL;
static pthread_mutex_t hash_lock;
static pthread_mutex_t qd_lock;
static pthread_mutex_t stgd_lock;
static pthread_mutex_t curses_lock;
static double total_mhashes_done;
static struct timeval total_tv_start, total_tv_end;
pthread_mutex_t control_lock;
static int accepted, rejected;
int hw_errors;
static int total_queued, total_staged, lp_staged;
static bool submit_fail = false;
static bool localgen = false;
static bool idlenet = false;
static unsigned int getwork_requested;
static unsigned int stale_shares;
static unsigned int discarded_work;
static unsigned int new_blocks;
static unsigned int local_work;
static unsigned int localgen_occasions;
static unsigned int remotefail_occasions;
static bool curses_active = false;
static char current_block[37];
static char longpoll_block[37];
static char blank[37];
static char datestamp[40];
static char blockdate[40];
struct sigaction termhandler, inthandler;
struct thread_q *getq;
static void applog_and_exit(const char *fmt, ...)
{
va_list ap;
va_start(ap, fmt);
vapplog(LOG_ERR, fmt, ap);
va_end(ap);
exit(1);
}
/* FIXME: Use asprintf for better errors. */
static char *set_algo(const char *arg, enum sha256_algos *algo)
{
enum sha256_algos i;
for (i = 0; i < ARRAY_SIZE(algo_names); i++) {
if (algo_names[i] && !strcmp(arg, algo_names[i])) {
*algo = i;
return NULL;
}
}
return "Unknown algorithm";
}
static void show_algo(char buf[OPT_SHOW_LEN], const enum sha256_algos *algo)
{
strncpy(buf, algo_names[*algo], OPT_SHOW_LEN);
}
static char *set_int_range(const char *arg, int *i, int min, int max)
{
char *err = opt_set_intval(arg, i);
if (err)
return err;
if (*i < min || *i > max)
return "Value out of range";
return NULL;
}
static char *set_int_0_to_9999(const char *arg, int *i)
{
return set_int_range(arg, i, 0, 9999);
}
static char *forced_int_0_to_14(const char *arg, int *i)
{
opt_dynamic = false;
return set_int_range(arg, i, 0, 14);
}
static char *force_nthreads_int(const char *arg, int *i)
{
forced_n_threads = true;
return set_int_range(arg, i, 0, 9999);
}
static char *set_int_0_to_10(const char *arg, int *i)
{
return set_int_range(arg, i, 0, 10);
}
static char *set_devices(const char *arg, int *i)
{
char *err = opt_set_intval(arg, i);
if (err)
return err;
if (*i < 0 || *i > 15)
return "Invalid GPU device number";
total_devices++;
gpu_devices[*i] = true;
return NULL;
}
static char *set_url(const char *arg, char **p)
{
opt_set_charp(arg, p);
if (strncmp(arg, "http://", 7) &&
strncmp(arg, "https://", 8))
return "URL must start with http:// or https://";
return NULL;
}
static char *set_vector(const char *arg, int *i)
{
char *err = opt_set_intval(arg, i);
if (err)
return err;
if (*i != 1 && *i != 2 && *i != 4)
return "Valid vectors are 1, 2 or 4";
return NULL;
}
static char *enable_debug(bool *flag)
{
*flag = true;
/* Turn out verbose output, too. */
opt_log_output = true;
return NULL;
}
/* These options are available from config file or commandline */
static struct opt_table opt_config_table[] = {
OPT_WITH_ARG("--algo|-a",
set_algo, show_algo, &opt_algo,
"Specify sha256 implementation for CPU mining:\n"
"\tc\t\tLinux kernel sha256, implemented in C"
#ifdef WANT_SSE2_4WAY
"\n\t4way\t\ttcatm's 4-way SSE2 implementation"
#endif
#ifdef WANT_VIA_PADLOCK
"\n\tvia\t\tVIA padlock implementation"
#endif
"\n\tcryptopp\tCrypto++ C/C++ implementation"
#ifdef WANT_CRYPTOPP_ASM32
"\n\tcryptopp_asm32\tCrypto++ 32-bit assembler implementation"
#endif
#ifdef WANT_X8664_SSE2
"\n\tsse2_64\t\tSSE2 implementation for x86_64 machines"
#endif
#ifdef WANT_X8664_SSE4
"\n\tsse4_64\t\tSSE4 implementation for x86_64 machines"
#endif
),
OPT_WITH_ARG("--cpu-threads|-t",
force_nthreads_int, opt_show_intval, &opt_n_threads,
"Number of miner CPU threads"),
OPT_WITHOUT_ARG("--debug|-D",
enable_debug, &opt_debug,
"Enable debug output"),
#ifdef HAVE_OPENCL
OPT_WITH_ARG("--device|-d",
set_devices, NULL, &opt_device,
"Select device to use, (Use repeat -d for multiple devices, default: all)"),
OPT_WITH_ARG("--gpu-threads|-g",
set_int_0_to_10, opt_show_intval, &opt_g_threads,
"Number of threads per GPU (0 - 10)"),
OPT_WITH_ARG("--intensity|-I",
forced_int_0_to_14, opt_show_intval, &scan_intensity,
"Intensity of GPU scanning (0 - 14, default: dynamic to maintain desktop interactivity)"),
#endif
OPT_WITH_ARG("--log|-l",
set_int_0_to_9999, opt_show_intval, &opt_log_interval,
"Interval in seconds between log output"),
OPT_WITHOUT_ARG("--no-longpoll",
opt_set_invbool, &want_longpoll,
"Disable X-Long-Polling support"),
OPT_WITH_ARG("--pass|-p",
opt_set_charp, NULL, &rpc_pass,
"Password for bitcoin JSON-RPC server"),
OPT_WITHOUT_ARG("--protocol-dump|-P",
opt_set_bool, &opt_protocol,
"Verbose dump of protocol-level activities"),
OPT_WITH_ARG("--queue|-Q",
set_int_0_to_10, opt_show_intval, &opt_queue,
"Number of extra work items to queue (0 - 10)"),
OPT_WITHOUT_ARG("--quiet|-q",
opt_set_bool, &opt_quiet,
"Disable per-thread hashmeter output"),
OPT_WITH_ARG("--retries|-r",
opt_set_intval, opt_show_intval, &opt_retries,
"Number of times to retry before giving up, if JSON-RPC call fails (-1 means never)"),
OPT_WITH_ARG("--retry-pause|-R",
set_int_0_to_9999, opt_show_intval, &opt_fail_pause,
"Number of seconds to pause, between retries"),
OPT_WITH_ARG("--scan-time|-s",
set_int_0_to_9999, opt_show_intval, &opt_scantime,
"Upper bound on time spent scanning current work, in seconds"),
#ifdef HAVE_SYSLOG_H
OPT_WITHOUT_ARG("--syslog",
opt_set_bool, &use_syslog,
"Use system log for output messages (default: standard error)"),
#endif
OPT_WITHOUT_ARG("--text-only|-T",
opt_set_invbool, &use_curses,
"Disable ncurses formatted screen output"),
OPT_WITH_ARG("--url|-o",
set_url, opt_show_charp, &rpc_url,
"URL for bitcoin JSON-RPC server"),
OPT_WITH_ARG("--user|-u",
opt_set_charp, NULL, &rpc_user,
"Username for bitcoin JSON-RPC server"),
#ifdef HAVE_OPENCL
OPT_WITH_ARG("--vectors|-v",
set_vector, NULL, &opt_vectors,
"Override detected optimal vector width (1, 2 or 4)"),
#endif
OPT_WITHOUT_ARG("--verbose",
opt_set_bool, &opt_log_output,
"Log verbose output to stderr as well as status output"),
#ifdef HAVE_OPENCL
OPT_WITH_ARG("--worksize|-w",
set_int_0_to_9999, opt_show_intval, &opt_worksize,
"Override detected optimal worksize"),
#endif
OPT_WITH_ARG("--userpass|-O",
opt_set_charp, NULL, &rpc_userpass,
"Username:Password pair for bitcoin JSON-RPC server"),
OPT_ENDTABLE
};
static char *parse_config(json_t *config)
{
static char err_buf[200];
json_t *val;
struct opt_table *opt;
for (opt = opt_config_table; opt->type != OPT_END; opt++) {
char *p, *name;
/* We don't handle subtables. */
assert(!(opt->type & OPT_SUBTABLE));
/* Pull apart the option name(s). */
name = strdup(opt->names);
for (p = strtok(name, "|"); p; p = strtok(NULL, "|")) {
char *err;
/* Ignore short options. */
if (p[1] != '-')
continue;
val = json_object_get(config, p+2);
if (!val)
continue;
if ((opt->type & OPT_HASARG) && json_is_string(val)) {
err = opt->cb_arg(json_string_value(val),
opt->u.arg);
} else if ((opt->type&OPT_NOARG) && json_is_true(val)) {
err = opt->cb(opt->u.arg);
} else {
err = "Invalid value";
}
if (err) {
sprintf(err_buf, "Parsing JSON option %s: %s",
p, err);
return err_buf;
}
}
free(name);
}
return NULL;
}
static char *load_config(const char *arg, void *unused)
{
json_error_t err;
json_t *config;
config = json_load_file(arg, 0, &err);
if (!json_is_object(config))
return "JSON decode of file failed";
/* Parse the config now, so we can override it. That can keep pointers
* so don't free config object. */
return parse_config(config);
}
static char *print_ndevs_and_exit(int *ndevs)
{
printf("%i GPU devices detected\n", *ndevs);
exit(*ndevs);
}
/* These options are available from commandline only */
static struct opt_table opt_cmdline_table[] = {
OPT_WITH_ARG("--config|-c",
load_config, NULL, NULL,
"Load a JSON-format configuration file\n"
"See example-cfg.json for an example configuration."),
OPT_WITHOUT_ARG("--help|-h",
opt_usage_and_exit,
#ifdef HAVE_OPENCL
"\nBuilt with CPU and GPU mining support.\n\n",
#else
"\nBuilt with CPU mining support only.\n\n",
#endif
"Print this message"),
OPT_WITHOUT_ARG("--ndevs|-n",
print_ndevs_and_exit, &nDevs,
"Enumerate number of detected GPUs and exit"),
OPT_ENDTABLE
};
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(buf, hexstr, buflen))
return false;
return true;
}
static bool work_decode(const json_t *val, struct work *work)
{
if (unlikely(!jobj_binary(val, "midstate",
work->midstate, sizeof(work->midstate)))) {
applog(LOG_ERR, "JSON inval midstate");
goto err_out;
}
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, "hash1", work->hash1, sizeof(work->hash1)))) {
applog(LOG_ERR, "JSON inval hash1");
goto err_out;
}
if (unlikely(!jobj_binary(val, "target", work->target, sizeof(work->target)))) {
applog(LOG_ERR, "JSON inval target");
goto err_out;
}
memset(work->hash, 0, sizeof(work->hash));
return true;
err_out:
return false;
}
static inline int dev_from_id(int thr_id)
{
return thr_info[thr_id].cgpu->cpu_gpu;
}
static WINDOW *mainwin, *statuswin, *logwin;
static double total_secs = 0.1;
static char statusline[256];
static int cpucursor, gpucursor, logstart, logcursor;
static struct cgpu_info *gpus, *cpus;
static void text_print_status(int thr_id)
{
struct cgpu_info *cgpu = thr_info[thr_id].cgpu;
printf(" %sPU %d: [%.1f Mh/s] [Q:%d A:%d R:%d HW:%d E:%.0f%% U:%.2f/m]\n",
cgpu->is_gpu ? "G" : "C", cgpu->cpu_gpu, cgpu->total_mhashes / total_secs,
cgpu->getworks, cgpu->accepted, cgpu->rejected, cgpu->hw_errors,
cgpu->efficiency, cgpu->utility);
}
/* Must be called with curses mutex lock held and curses_active */
static void curses_print_status(int thr_id)
{
wmove(statuswin, 0, 0);
wattron(statuswin, A_BOLD);
wprintw(statuswin, " " PROGRAM_NAME " version " VERSION " - Started: %s", datestamp);
wattroff(statuswin, A_BOLD);
wmove(statuswin, 1, 0);
whline(statuswin, '-', 80);
wmove(statuswin, 2,0);
wprintw(statuswin, " %s", statusline);
wclrtoeol(statuswin);
wmove(statuswin, 3,0);
wprintw(statuswin, " TQ: %d ST: %d LS: %d SS: %d DW: %d NB: %d LW: %d LO: %d RF: %d I: %d",
total_queued, total_staged, lp_staged, stale_shares, discarded_work, new_blocks,
local_work, localgen_occasions, remotefail_occasions, scan_intensity);
wclrtoeol(statuswin);
wmove(statuswin, 4, 0);
wprintw(statuswin, " Connected to %s as user %s", rpc_url, rpc_user);
wmove(statuswin, 5, 0);
wprintw(statuswin, " Block %s started: %s", current_block + 4, blockdate);
wmove(statuswin, 6, 0);
whline(statuswin, '-', 80);
wmove(statuswin, logstart - 1, 0);
whline(statuswin, '-', 80);
if (thr_id >= 0 && thr_id < gpu_threads) {
int gpu = dev_from_id(thr_id);
struct cgpu_info *cgpu = &gpus[gpu];
wmove(statuswin, gpucursor + gpu, 0);
wprintw(statuswin, " GPU %d: [%.1f Mh/s] [Q:%d A:%d R:%d HW:%d E:%.0f%% U:%.2f/m]",
gpu, cgpu->total_mhashes / total_secs,
cgpu->getworks, cgpu->accepted, cgpu->rejected, cgpu->hw_errors,
cgpu->efficiency, cgpu->utility);
wclrtoeol(statuswin);
} else if (thr_id >= gpu_threads) {
int cpu = dev_from_id(thr_id);
struct cgpu_info *cgpu = &cpus[cpu];
wmove(statuswin, cpucursor + cpu, 0);
wprintw(statuswin, " CPU %d: [%.1f Mh/s] [Q:%d A:%d R:%d HW:%d E:%.0f%% U:%.2f/m]",
cpu, cgpu->total_mhashes / total_secs,
cgpu->getworks, cgpu->accepted, cgpu->rejected, cgpu->hw_errors,
cgpu->efficiency, cgpu->utility);
wclrtoeol(statuswin);
}
wrefresh(statuswin);
}
static void print_status(int thr_id)
{
if (!curses_active)
text_print_status(thr_id);
else {
pthread_mutex_lock(&curses_lock);
curses_print_status(thr_id);
wrefresh(statuswin);
pthread_mutex_unlock(&curses_lock);
}
}
void log_curses(const char *f, va_list ap)
{
if (curses_active) {
pthread_mutex_lock(&curses_lock);
vw_printw(logwin, f, ap);
wrefresh(logwin);
pthread_mutex_unlock(&curses_lock);
} else
vprintf(f, ap);
}
static bool submit_upstream_work(const struct work *work)
{
char *hexstr = NULL;
json_t *val, *res;
char s[345];
bool rc = false;
int thr_id = work->thr_id;
struct cgpu_info *cgpu = thr_info[thr_id].cgpu;
CURL *curl = curl_easy_init();
if (unlikely(!curl)) {
applog(LOG_ERR, "CURL initialisation failed");
return rc;
}
/* build hex string */
hexstr = bin2hex(work->data, sizeof(work->data));
if (unlikely(!hexstr)) {
applog(LOG_ERR, "submit_upstream_work OOM");
goto out_nofree;
}
/* build JSON-RPC request */
sprintf(s,
"{\"method\": \"getwork\", \"params\": [ \"%s\" ], \"id\":1}\r\n",
hexstr);
if (opt_debug)
applog(LOG_DEBUG, "DBG: sending RPC call: %s", s);
/* issue JSON-RPC request */
val = json_rpc_call(curl, rpc_url, rpc_userpass, s, false, false);
if (unlikely(!val)) {
applog(LOG_INFO, "submit_upstream_work json_rpc_call failed");
if (!test_and_set(&submit_fail)) {
remotefail_occasions++;
applog(LOG_WARNING, "Upstream communication failure, caching submissions");
}
goto out;
} else if (test_and_clear(&submit_fail))
applog(LOG_WARNING, "Upstream communication resumed, submitting work");
res = json_object_get(val, "result");
/* Theoretically threads could race when modifying accepted and
* rejected values but the chance of two submits completing at the
* same time is zero so there is no point adding extra locking */
if (json_is_true(res)) {
cgpu->accepted++;
accepted++;
if (opt_debug)
applog(LOG_DEBUG, "PROOF OF WORK RESULT: true (yay!!!)");
if (!opt_quiet)
applog(LOG_WARNING, "Share %.8s accepted from %sPU %d thread %d",
hexstr + 152, cgpu->is_gpu? "G" : "C", cgpu->cpu_gpu, thr_id);
} else {
cgpu->rejected++;
rejected++;
if (opt_debug)
applog(LOG_DEBUG, "PROOF OF WORK RESULT: false (booooo)");
if (!opt_quiet)
applog(LOG_WARNING, "Share %.8s rejected from %sPU %d thread %d",
hexstr + 152, cgpu->is_gpu? "G" : "C", cgpu->cpu_gpu, thr_id);
}
cgpu->utility = cgpu->accepted / ( total_secs ? total_secs : 1 ) * 60;
cgpu->efficiency = cgpu->getworks ? cgpu->accepted * 100.0 / cgpu->getworks : 0.0;
if (!opt_quiet)
print_status(thr_id);
applog(LOG_INFO, "%sPU %d Q:%d A:%d R:%d HW:%d E:%.0f%% U:%.2f/m",
cgpu->is_gpu? "G" : "C", cgpu->cpu_gpu, cgpu->getworks, cgpu->accepted,
cgpu->rejected, cgpu->hw_errors, cgpu->efficiency, cgpu->utility);
json_decref(val);
rc = true;
out:
free(hexstr);
out_nofree:
curl_easy_cleanup(curl);
return rc;
}
static const char *rpc_req =
"{\"method\": \"getwork\", \"params\": [], \"id\":0}\r\n";
static bool get_upstream_work(struct work *work)
{
json_t *val;
bool rc = false;
CURL *curl = curl_easy_init();
if (unlikely(!curl)) {
applog(LOG_ERR, "CURL initialisation failed");
return rc;
}
val = json_rpc_call(curl, rpc_url, rpc_userpass, rpc_req,
want_longpoll, false);
if (unlikely(!val)) {
applog(LOG_DEBUG, "Failed json_rpc_call in get_upstream_work");
goto out;
}
rc = work_decode(json_object_get(val, "result"), work);
json_decref(val);
out:
curl_easy_cleanup(curl);
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 void disable_curses(void)
{
if (test_and_clear(&curses_active)) {
delwin(logwin);
delwin(statuswin);
delwin(mainwin);
endwin();
refresh();
}
}
void kill_work(void)
{
struct workio_cmd *wc;
struct thr_info *thr;
unsigned int i;
disable_curses();
applog(LOG_INFO, "Received kill message");
/* Kill the watchdog thread */
thr = &thr_info[watchdog_thr_id];
pthread_cancel(thr->pth);
/* Stop the mining threads*/
for (i = 0; i < mining_threads; i++) {
thr = &thr_info[i];
tq_freeze(thr->q);
/* No need to check if this succeeds or not */
pthread_cancel(thr->pth);
}
/* Stop the others */
thr = &thr_info[stage_thr_id];
pthread_cancel(thr->pth);
thr = &thr_info[longpoll_thr_id];
pthread_cancel(thr->pth);
wc = calloc(1, sizeof(*wc));
if (unlikely(!wc)) {
applog(LOG_ERR, "Failed to calloc wc in kill_work");
/* We're just trying to die anyway, so forget graceful */
exit (1);
}
wc->cmd = WC_DIE;
wc->thr = 0;
if (unlikely(!tq_push(thr_info[work_thr_id].q, wc))) {
applog(LOG_ERR, "Failed to tq_push work in kill_work");
exit (1);
}
}
static void sighandler(int sig)
{
/* Restore signal handlers so we can still quit if kill_work fails */
sigaction(SIGTERM, &termhandler, NULL);
sigaction(SIGINT, &inthandler, NULL);
kill_work();
}
static void *get_work_thread(void *userdata)
{
struct workio_cmd *wc = (struct workio_cmd *)userdata;
struct work *ret_work;
int failures = 0;
pthread_detach(pthread_self());
ret_work = calloc(1, sizeof(*ret_work));
if (unlikely(!ret_work)) {
applog(LOG_ERR, "Failed to calloc ret_work in workio_get_work");
kill_work();
goto out;
}
/* obtain new work from bitcoin via JSON-RPC */
while (!get_upstream_work(ret_work)) {
if (unlikely((opt_retries >= 0) && (++failures > opt_retries))) {
applog(LOG_ERR, "json_rpc_call failed, terminating workio thread");
free(ret_work);
kill_work();
goto out;
}
/* pause, then restart work-request loop */
applog(LOG_DEBUG, "json_rpc_call failed on get work, retry after %d seconds",
opt_fail_pause);
sleep(opt_fail_pause);
}
/* send work to requesting thread */
if (unlikely(!tq_push(thr_info[stage_thr_id].q, ret_work))) {
applog(LOG_ERR, "Failed to tq_push work in workio_get_work");
kill_work();
free(ret_work);
}
out:
workio_cmd_free(wc);
return NULL;
}
static bool workio_get_work(struct workio_cmd *wc)
{
pthread_t get_thread;
if (unlikely(pthread_create(&get_thread, NULL, get_work_thread, (void *)wc))) {
applog(LOG_ERR, "Failed to create get_work_thread");
return false;
}
return true;
}
static bool stale_work(struct work *work)
{
bool ret = false;
char *hexstr;
if (!strncmp(blank, current_block, 36))
return ret;
hexstr = bin2hex(work->data, 36);
if (unlikely(!hexstr)) {
applog(LOG_ERR, "submit_work_thread OOM");
return ret;
}
if (strncmp(hexstr, current_block, 36))
ret = true;
free(hexstr);
return ret;
}
static void *submit_work_thread(void *userdata)
{
struct workio_cmd *wc = (struct workio_cmd *)userdata;
int failures = 0;
pthread_detach(pthread_self());
if (stale_work(wc->u.work)) {
applog(LOG_WARNING, "Stale share detected, discarding");
stale_shares++;
goto out;
}
/* submit solution to bitcoin via JSON-RPC */
while (!submit_upstream_work(wc->u.work)) {
if (stale_work(wc->u.work)) {
applog(LOG_WARNING, "Stale share detected, discarding");
stale_shares++;
break;
}
if (unlikely((opt_retries >= 0) && (++failures > opt_retries))) {
applog(LOG_ERR, "Failed %d retries ...terminating workio thread", opt_retries);
kill_work();
break;
}
/* pause, then restart work-request loop */
applog(LOG_INFO, "json_rpc_call failed on submit_work, retry after %d seconds",
opt_fail_pause);
sleep(opt_fail_pause);
}
out:
workio_cmd_free(wc);
return NULL;
}
static bool workio_submit_work(struct workio_cmd *wc)
{
pthread_t submit_thread;
if (unlikely(pthread_create(&submit_thread, NULL, submit_work_thread, (void *)wc))) {
applog(LOG_ERR, "Failed to create submit_work_thread");
return false;
}
return true;
}
static void inc_staged(int inc, bool lp)
{
pthread_mutex_lock(&stgd_lock);
if (lp) {
lp_staged += inc;
total_staged += inc;
idlenet = true;
} else if (lp_staged) {
if (!--lp_staged) {
unsigned int i;
/* Make sure the watchdog thread doesn't kill the mining
* threads once we unset the idlenet flag */
for (i = 0; i < mining_threads; i++)
gettimeofday(&thr_info[i].last, NULL);
idlenet = false;
}
} else
total_staged += inc;
pthread_mutex_unlock(&stgd_lock);
}
static void dec_staged(int inc)
{
pthread_mutex_lock(&stgd_lock);
total_staged -= inc;
pthread_mutex_unlock(&stgd_lock);
}
static int requests_staged(void)
{
int ret;
pthread_mutex_lock(&stgd_lock);
ret = total_staged;
pthread_mutex_unlock(&stgd_lock);
return ret;
}
static void set_curblock(char *hexstr)
{
struct timeval tv_now;
struct tm tm;
memcpy(current_block, hexstr, 36);
gettimeofday(&tv_now, NULL);