uint32_t get_work(uint32_t *midstate, uint32_t *data)
{
getwork gw;
uint32_t mtime;
int h,num=sizeof(hosts)/sizeof(hosts_t);
static unsigned char host=0;
gwmut.lock();
for(h=0;h<num;h++,host++){
host=host%num;
GetworkThread* gwt=(GetworkThread*)hosts[host].gwt;
if(!gwt->getworks.empty()){
mtime=gwt->getworks.back().mtime;
memcpy(data,gwt->getworks.back().data,sizeof(gw.data));
memcpy(midstate,gwt->getworks.back().midstate,sizeof(gw.midstate));
//add host signature to data
if(((char*)data)[0]!=0){
printf("ERROR: got incompatible data header char: %d\n",(int)(((char*)data)[0]));
gwt->getworks.pop_back();
gwmut.unlock();
return 0;}
memcpy(data,&host,1);
gwt->getworks.pop_back();
gwmut.unlock();
hosts[host].got++;
return mtime;}}
gwmut.unlock();
threads_sleep(100); //sleep here rather than in C part
return 0;
}
void put_work(uint32_t *data,uint32_t* hash)
{
//FILE* fd;
int k;
unsigned char host;
for(k=0;k<7;k++){ // Reverse byte order !
byte_reverse((uint8_t*)(&hash[k]));}
memcpy(&host,data,1);
for(k=7;k>0;k--){
if(hash[k]<hosts[host].target[k]){ // hash meets difficulty
PutworkThread* pwt;
putwork pw;
memset(data,0,1);
pwt=(PutworkThread*)hosts[host].pwt;
memcpy(pw.data,data,sizeof(uint32_t)*32);
pwmut.lock();
pwt->putworks.push_back(pw);
pwmut.unlock();
hosts[host].done++;
//fd=fopen(".putwork.log", "a");
//fprintf(fd,"%lu %08x-%08x-%08x-%08x-%08x-%08x-%08x-%08x %d good\n",time(NULL),hash[0],hash[1],hash[2],hash[3],hash[4],hash[5],hash[6],hash[7],k);
//fclose(fd);
//printf("SENDING: %08x-%08x-%08x-%08x-%08x-%08x-%08x-%08x\n",hash[0],hash[1],hash[2],hash[3],hash[4],hash[5],hash[6],hash[7]);
return;}
if(hash[k]>hosts[host].target[k]){
//fd=fopen(".putwork.log", "a");
//fprintf(fd,"%lu %08x-%08x-%08x-%08x-%08x-%08x-%08x-%08x %d easy\n",time(NULL),hash[0],hash[1],hash[2],hash[3],hash[4],hash[5],hash[6],hash[7],k);
//fclose(fd);
return;}}
}
void PutworkThread::log()
{
unsigned int i,j;
char filename[32];
FILE* fp;
sprintf(filename,".putwork-%d.log",host);
fp=fopen(filename, "w");
gwmut.lock();
fprintf(fp,"%d\n",putworks.size());
for(i=0;i<putworks.size();i++){
for(j=16;j<20;j++){
fprintf(fp,"%08x", putworks[i].data[j]);}
fprintf(fp,"\n");}
gwmut.unlock();
fclose(fp);
}
/* -------------------------------- getwork -----------------------------------*/
void GetworkThread::log()
{
unsigned int i,j;
char filename[32];
FILE* fp;
sprintf(filename,".getwork-%d.log",host);
fp=fopen(filename, "w");
gwmut.lock();
for(i=0;i<getworks.size();i++){
fprintf(fp,"%u ",getworks[i].mtime);
for(j=0;j<8;j++){
fprintf(fp,"%08x", getworks[i].midstate[j]);}
fprintf(fp,"\n");}
gwmut.unlock();
fclose(fp);
}
void PutworkThread::Run() // just send data, don't check anything (again)
{
for(;;){
uint32_t data[32];
char ustr[258];
unsigned int k;
//FILE* fd;
pwmut.lock();
if(putworks.empty()){
pwmut.unlock();
if(testCancel()){
break;}
threads_sleep(100);
continue;}
memcpy(data,putworks.front().data, sizeof(data));
putworks.erase(putworks.begin());
pwmut.unlock();
for(k=0;k<32;k++) {
byte_reverse((uint8_t*)(&data[k]));
sprintf(&ustr[k*8],"%08x",data[k]);}
ustr[256] = 0;
//fd=fopen(".putwork.log", "a");
//fprintf(fd,"%u %s\n",time(NULL),ustr);
//fclose(fd);
Json::Value query;
query["jsonrpc"] = "2.0";
query["id"] = 1;
query["method"] = "getwork";
query["params"][0] = std::string(ustr);
Json::Value answ = make_rpc_req(query, false, host); // only one save
// here we should check if the answer is ok
hosts[host].sent++;
//log();
}
}
void GetworkThread::Run()
{
while(!testCancel()) {
uint32_t midstate[8]={0,0,0,0,0,0,0,0}, data[32];
unsigned int i;
getwork gw;
uint32_t mtime = time(NULL);
Json::Value query, answ;
PutworkThread* pwt=(PutworkThread*)hosts[host].pwt;
gwmut.lock();
if(!getworks.empty()){
if(getworks.back().mtime==mtime) {
gwmut.unlock();
threads_sleep(100);
continue;}
for(i=0;i<getworks.size();i++){
if(getworks[i].mtime>mtime-MAXWORKAGE){
break;}}
if(i>0){
getworks.erase(getworks.begin(),getworks.begin()+i);}}
gwmut.unlock();
if(pwt==NULL){
threads_sleep(100);
continue;}
if(pwt->putworks.size()>MAXPUTWORK){
gwmut.lock();
getworks.clear(); // removes all jobs due to slow queue
gwmut.unlock();
printf("GETWORK: queue full for host[%d]: %s \n",host,hosts[host].url);
threads_sleep(1000);
continue;}
query["jsonrpc"] = "2.0";
query["id"] = 1;
query["method"] = "getwork";
answ = make_rpc_req(query, false, host);
if (answ.type() != Json::objectValue){
threads_sleep(500);
continue; }
if (!parse_ulong(data, answ["data"].asCString(), 32, 0, 1)){
threads_sleep(500);
continue; }
if (!parse_ulong(midstate, answ["midstate"].asCString(), 8, 0, 1)) {
const unsigned sha_initial_state[8]={0x6a09e667,0xbb67ae85,0x3c6ef372,0xa54ff53a,0x510e527f,0x9b05688c,0x1f83d9ab,0x5be0cd19};
SHA256_Full(midstate, data, sha_initial_state); }
gwmut.lock();
if(!getworks.empty()){
if (memcmp( ((btc_block_t*)data)->hashPrevBlock, ((btc_block_t*)getworks.front().data)->hashPrevBlock, 32)) {
getworks.clear(); // removes all jobs in last block
gwmut.unlock();
pwmut.lock();
if (!parse_ulong(hosts[host].target, answ["target"].asCString(), 8, 0, 1)) {
bits2bn(hosts[host].target, ((btc_block_t*)data)->nBits );
}
pwmut.unlock();
gwmut.lock();
} }
else{
if(hosts[host].target[7]==0xFFFFFFFF){
gwmut.unlock();
pwmut.lock();
if (!parse_ulong(hosts[host].target, answ["target"].asCString(), 8, 0, 1)) {
bits2bn(hosts[host].target, ((btc_block_t*)data)->nBits );
}
pwmut.unlock();
gwmut.lock();
} }
gw.mtime=mtime;
memcpy(gw.data,data,sizeof(data));
memcpy(gw.midstate,midstate,sizeof(midstate));
getworks.push_back(gw);
gwmut.unlock();
//log();
}
}
void GetworkThread::Run()
{
while(!testCancel()) {
uint32_t midstate[8]={0,0,0,0,0,0,0,0}, data[32];
unsigned int i;
getwork gw;
uint32_t mtime = time(NULL);
static uint32_t ltime=0; // last download
Json::Value query, answ;
PutworkThread* pwt=(PutworkThread*)hosts[host].pwt;
if(ltime==mtime){ // limit requests to 1 per second
threads_sleep(100);
continue;}
gwmut.lock();
if(!getworks.empty()){
int h;
for(h=0;h<MAXHOSTS;h++){ // check all getwork threads if any has current job
GetworkThread* gwt=(GetworkThread*)hosts[h].gwt;
if(gwt==NULL || gwt->getworks.empty()){
continue;}
if(gwt->getworks.back().mtime==mtime) {
break;}} // this should be a GOTO, I have to start using this
if(h<MAXHOSTS){
gwmut.unlock();
threads_sleep(100);
continue;}
/*if(getworks.back().mtime==mtime) {
gwmut.unlock();
threads_sleep(100);
continue;}*/
for(i=0;i<getworks.size();i++){
if(getworks[i].mtime>mtime-MAXWORKAGE){
break;}}
if(i>0){
getworks.erase(getworks.begin(),getworks.begin()+i);}}
gwmut.unlock();
if(pwt==NULL){
threads_sleep(100);
continue;}
if(pwt->putworks.size()>MAXPUTWORK){
gwmut.lock();
getworks.clear(); // removes all jobs due to slow queue
gwmut.unlock();
printf("GETWORK: queue full for host[%d]: %s \n",host,hosts[host].url);
threads_sleep(1000);
continue;}
query["jsonrpc"] = "2.0";
query["id"] = 1;
query["method"] = "getwork";
answ = make_rpc_req(query, false, host,2);
if (answ.type() != Json::objectValue){
threads_sleep(500);
continue; }
if (answ["data"].type() != Json::stringValue || !parse_ulong(data, answ["data"].asCString(), 32, 0, 1)){
threads_sleep(500);
continue; }
if (answ["midstate"].type() != Json::stringValue || !parse_ulong(midstate, answ["midstate"].asCString(), 8, 0, 1)) {
const unsigned sha_initial_state[8]={0x6a09e667,0xbb67ae85,0x3c6ef372,0xa54ff53a,0x510e527f,0x9b05688c,0x1f83d9ab,0x5be0cd19};
SHA256_Full(midstate, data, sha_initial_state); }
gwmut.lock();
if(!getworks.empty()){
if (memcmp( ((btc_block_t*)data)->hashPrevBlock, ((btc_block_t*)getworks.front().data)->hashPrevBlock, 32)) { // removes all jobs in last block
//try clearing all queues
int h;
for(h=0;h<MAXHOSTS;h++){
GetworkThread* gwt=(GetworkThread*)hosts[h].gwt;
if(gwt==NULL){
continue;}
gwt->getworks.clear();}
// clear our again just in case :-)
getworks.clear();
gwmut.unlock();
pwmut.lock();
if (answ["target"].type() != Json::stringValue || !parse_ulong(hosts[host].target, answ["target"].asCString(), 8, 0, 1)) {
bits2bn(hosts[host].target, ((btc_block_t*)data)->nBits );
}
pwmut.unlock();
gwmut.lock(); } }
else{
if(hosts[host].target[7]==0xFFFFFFFF){
gwmut.unlock();
pwmut.lock();
if (answ["target"].type() != Json::stringValue || !parse_ulong(hosts[host].target, answ["target"].asCString(), 8, 0, 1)) {
bits2bn(hosts[host].target, ((btc_block_t*)data)->nBits );
}
pwmut.unlock();
gwmut.lock(); } }
gw.mtime=mtime;
memcpy(gw.data,data,sizeof(data));
memcpy(gw.midstate,midstate,sizeof(midstate));
getworks.push_back(gw);
gwmut.unlock();
ltime=mtime;
//log();
}
}