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/*
* Copyright 2013-2014 Luke Dashjr
*
* 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 3 of the License, or (at your option)
* any later version. See COPYING for more details.
*/
#include "config.h"
#include <unistd.h>
#include <pthread.h>
#include <uthash.h>
#include "deviceapi.h"
#include "driver-proxy.h"
#include "miner.h"
#include "util.h"
BFG_REGISTER_DRIVER(proxy_drv)
static const struct bfg_set_device_definition proxy_set_device_funcs[];
static
struct proxy_client *proxy_clients;
static
pthread_mutex_t proxy_clients_mutex = PTHREAD_MUTEX_INITIALIZER;
static
void prune_worklog()
{
struct proxy_client *client, *tmp;
struct work *work, *tmp2;
struct timeval tv_now;
timer_set_now(&tv_now);
mutex_lock(&proxy_clients_mutex);
HASH_ITER(hh, proxy_clients, client, tmp)
{
HASH_ITER(hh, client->work, work, tmp2)
{
if (timer_elapsed(&work->tv_work_start, &tv_now) <= opt_expiry)
break;
HASH_DEL(client->work, work);
free_work(work);
}
}
mutex_unlock(&proxy_clients_mutex);
}
static
pthread_t prune_worklog_pth;
static
void *prune_worklog_thread(void *userdata)
{
struct cgpu_info *cgpu = userdata;
pthread_detach(pthread_self());
RenameThread("PXY_pruner");
while (!cgpu->shutdown)
{
prune_worklog();
sleep(60);
}
return NULL;
}
static
void proxy_first_client(struct cgpu_info *cgpu)
{
pthread_create(&prune_worklog_pth, NULL, prune_worklog_thread, cgpu);
}
struct proxy_client *proxy_find_or_create_client(const char *username)
{
struct proxy_client *client;
struct cgpu_info *cgpu;
char *user;
int b;
if (!username)
return NULL;
mutex_lock(&proxy_clients_mutex);
HASH_FIND_STR(proxy_clients, username, client);
if (!client)
{
user = strdup(username);
cgpu = malloc(sizeof(*cgpu));
client = malloc(sizeof(*client));
*cgpu = (struct cgpu_info){
.drv = &proxy_drv,
.set_device_funcs = proxy_set_device_funcs,
.threads = 0,
.device_data = client,
.device_path = user,
.min_nonce_diff = (opt_scrypt ? (1./0x10000) : 1.),
};
timer_set_now(&cgpu->cgminer_stats.start_tv);
if (unlikely(!create_new_cgpus(add_cgpu_live, cgpu)))
{
free(client);
free(cgpu);
free(user);
return NULL;
}
*client = (struct proxy_client){
.username = user,
.cgpu = cgpu,
.desired_share_pdiff = opt_scrypt ? (1./0x10000) : 1.,
};
b = HASH_COUNT(proxy_clients);
HASH_ADD_KEYPTR(hh, proxy_clients, client->username, strlen(user), client);
mutex_unlock(&proxy_clients_mutex);
if (!b)
proxy_first_client(cgpu);
cgpu_set_defaults(cgpu);
}
else
{
mutex_unlock(&proxy_clients_mutex);
cgpu = client->cgpu;
}
thread_reportin(cgpu->thr[0]);
return client;
}
static
const char *proxy_set_diff(struct cgpu_info * const proc, const char * const optname, const char * const newvalue, char * const replybuf, enum bfg_set_device_replytype * const success)
{
struct proxy_client * const client = proc->device_data;
const double nv = atof(newvalue);
if (nv <= 0)
return "Invalid difficulty";
client->desired_share_pdiff = nv;
#ifdef USE_LIBEVENT
stratumsrv_client_changed_diff(client);
#endif
return NULL;
}
#ifdef HAVE_CURSES
static
void proxy_wlogprint_status(struct cgpu_info *cgpu)
{
struct proxy_client *client = cgpu->device_data;
wlogprint("Username: %s\n", client->username);
}
#endif
static const struct bfg_set_device_definition proxy_set_device_funcs[] = {
{"diff", proxy_set_diff, "desired share difficulty for clients"},
{NULL},
};
struct device_drv proxy_drv = {
.dname = "proxy",
.name = "PXY",
#ifdef HAVE_CURSES
.proc_wlogprint_status = proxy_wlogprint_status,
#endif
};
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