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#pragma once
#include <string.h>
#include <assert.h>
// Structures that we use to pass info between threads constructors are here just to make
// the stack allocation take up less space, heap is a shared resouce that needs locks too of course
struct pool_job
{
char sJobID[64];
uint8_t bWorkBlob[112];
uint64_t iTarget;
uint32_t iWorkLen;
uint32_t iResumeCnt;
pool_job() : iWorkLen(0), iResumeCnt(0) {}
pool_job(const char* sJobID, uint64_t iTarget, const uint8_t* bWorkBlob, uint32_t iWorkLen) :
iTarget(iTarget), iWorkLen(iWorkLen), iResumeCnt(0)
{
assert(iWorkLen <= sizeof(pool_job::bWorkBlob));
memcpy(this->sJobID, sJobID, sizeof(pool_job::sJobID));
memcpy(this->bWorkBlob, bWorkBlob, iWorkLen);
}
};
struct job_result
{
uint8_t bResult[32];
char sJobID[64];
uint32_t iNonce;
job_result() {}
job_result(const char* sJobID, uint32_t iNonce, const uint8_t* bResult) : iNonce(iNonce)
{
memcpy(this->sJobID, sJobID, sizeof(job_result::sJobID));
memcpy(this->bResult, bResult, sizeof(job_result::bResult));
}
};
enum ex_event_name { EV_INVALID_VAL, EV_SOCK_READY, EV_SOCK_ERROR,
EV_POOL_HAVE_JOB, EV_MINER_HAVE_RESULT, EV_PERF_TICK, EV_RECONNECT,
EV_SWITCH_POOL, EV_DEV_POOL_EXIT, EV_USR_HASHRATE, EV_USR_RESULTS, EV_USR_CONNSTAT,
EV_HASHRATE_LOOP, EV_HTML_HASHRATE, EV_HTML_RESULTS, EV_HTML_CONNSTAT };
/*
This is how I learned to stop worrying and love c++11 =).
Ghosts of endless heap allocations have finally been exorcised. Thanks
to the nifty magic of move semantics, string will only be allocated
once on the heap. Considering that it makes a jorney across stack,
heap alloced queue, to another stack before being finally processed
I think it is kind of nifty, don't you?
Also note that for non-arg events we only copy two qwords
*/
struct ex_event
{
ex_event_name iName;
size_t iPoolId;
union
{
pool_job oPoolJob;
job_result oJobResult;
std::string sSocketError;
};
ex_event() { iName = EV_INVALID_VAL; iPoolId = 0;}
ex_event(std::string&& err, size_t id) : iName(EV_SOCK_ERROR), iPoolId(id), sSocketError(std::move(err)) { }
ex_event(job_result dat, size_t id) : iName(EV_MINER_HAVE_RESULT), iPoolId(id), oJobResult(dat) {}
ex_event(pool_job dat, size_t id) : iName(EV_POOL_HAVE_JOB), iPoolId(id), oPoolJob(dat) {}
ex_event(ex_event_name ev, size_t id = 0) : iName(ev), iPoolId(id) {}
// Delete the copy operators to make sure we are moving only what is needed
ex_event(ex_event const&) = delete;
ex_event& operator=(ex_event const&) = delete;
ex_event(ex_event&& from)
{
iName = from.iName;
iPoolId = from.iPoolId;
switch(iName)
{
case EV_SOCK_ERROR:
new (&sSocketError) std::string(std::move(from.sSocketError));
break;
case EV_MINER_HAVE_RESULT:
oJobResult = from.oJobResult;
break;
case EV_POOL_HAVE_JOB:
oPoolJob = from.oPoolJob;
break;
default:
break;
}
}
ex_event& operator=(ex_event&& from)
{
assert(this != &from);
if(iName == EV_SOCK_ERROR)
sSocketError.~basic_string();
iName = from.iName;
iPoolId = from.iPoolId;
switch(iName)
{
case EV_SOCK_ERROR:
new (&sSocketError) std::string();
sSocketError = std::move(from.sSocketError);
break;
case EV_MINER_HAVE_RESULT:
oJobResult = from.oJobResult;
break;
case EV_POOL_HAVE_JOB:
oPoolJob = from.oPoolJob;
break;
default:
break;
}
return *this;
}
~ex_event()
{
if(iName == EV_SOCK_ERROR)
sSocketError.~basic_string();
}
};
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