QTradeProgram/cleaned_source_code/FTAPI/tool.h

#pragma once
#ifdef _WIN32
#include <windows.h>
#else
#include <time.h>
#include <semaphore.h>
#include <unistd.h>
#include <fcntl.h>
#endif
#include <iostream>
#include <stdint.h>
#include <sstream>
#include <string>
#include <stdlib.h>
using namespace std;
#include <google/protobuf/io/zero_copy_stream_impl.h> 
#include "Include_FTAPI.h"
#include "Include_3rd_protobuf.h"
using namespace google;
using namespace Futu;
#pragma warning(disable:4100)
#pragma warning(disable:4189)
inline void ProtoBufToBodyData(const protobuf::Message& pbObj, string& strBody)
{
	protobuf::util::JsonPrintOptions ops;
	ops.add_whitespace = true;
	ops.always_print_enums_as_ints = true;
	protobuf::util::Status status = MessageToJsonString(pbObj, &strBody, ops);
	if (status.error_code() != protobuf::util::error::OK)
	{
		strBody.clear();
	}
}
inline void ProtoBufToBodyData_Ex(const protobuf::Message& pbObj, std::string& strBody) {
	thread_local static std::string buffer;  
	buffer.clear();
	protobuf::util::JsonPrintOptions ops;
	ops.add_whitespace = false;           
	ops.preserve_proto_field_names = true;
	ops.always_print_primitive_fields = false; 
	if (protobuf::util::MessageToJsonString(pbObj, &buffer, ops).ok()) {
		strBody.swap(buffer);  
	}
	else {
		strBody.clear();
	}
}
inline void ProtoBufToBodyData_Binary(const protobuf::Message& pbObj, std::string& strBody) noexcept {
	thread_local static std::string buffer;
	pbObj.SerializeToString(&buffer); 
	strBody.swap(buffer);
	buffer.clear();
}
inline void FastSerializeProto(const protobuf::Message& pbObj, std::string& strBody) noexcept {
	thread_local static struct {
		std::string buffer;
		size_t last_capacity = 0;
	} tls_pool;
	const size_t need_size = pbObj.ByteSizeLong();
	if (tls_pool.last_capacity < need_size * 1.2) {
		tls_pool.buffer.reserve(std::max(need_size * 2, size_t(4096)));
		tls_pool.last_capacity = tls_pool.buffer.capacity();
	}
	tls_pool.buffer.clear();
	pbObj.SerializeToString(&tls_pool.buffer);
	strBody.swap(tls_pool.buffer);  
}
#if defined(__GNUC__) || defined(__clang__)
# define MY_PREDICT_FALSE(x) (__builtin_expect(!!(x), 0))
# define MY_PREDICT_TRUE(x) (__builtin_expect(!!(x), 1))
#else
# define MY_PREDICT_FALSE(x) (x)
# define MY_PREDICT_TRUE(x) (x)
#endif
inline bool FastDeserializeProto(const std::string& strBody, protobuf::Message& pbObj) noexcept {
	protobuf::io::ArrayInputStream raw_input(strBody.data(), strBody.size());
	protobuf::io::CodedInputStream coded_input(&raw_input);
	coded_input.SetTotalBytesLimit(100 * 1024 * 1024, 50 * 1024 * 1024);  
	if (MY_PREDICT_FALSE(!pbObj.ParseFromCodedStream(&coded_input))) {
		pbObj.Clear();  
		return false;
	}
	if (MY_PREDICT_FALSE(!pbObj.IsInitialized())) {
		pbObj.Clear();
		return false;
	}
	return true;
}
#if defined(_WIN32)
inline string UTF8ToGBK(const string &strUTF8)
{
	int nLen = MultiByteToWideChar(CP_UTF8, 0, strUTF8.c_str(), -1, NULL, 0);
	wchar_t* wszGBK = new wchar_t[nLen + 1];
	memset(wszGBK, 0, nLen * 2 + 2);
	MultiByteToWideChar(CP_UTF8, 0, strUTF8.c_str(), -1, wszGBK, nLen);
	nLen = WideCharToMultiByte(CP_ACP, 0, wszGBK, -1, NULL, 0, NULL, NULL);
	char* szGBK = new char[nLen + 1];
	memset(szGBK, 0, nLen + 1);
	WideCharToMultiByte(CP_ACP, 0, wszGBK, -1, szGBK, nLen, NULL, NULL);
	string strGBK(szGBK);
	if (wszGBK) delete[] wszGBK;
	if (szGBK) delete[] szGBK;
	return strGBK;
}
#endif
inline string UTF8ToLocal(const string &strUTF8)
{
#if defined(_WIN32)
	int nCodePage = GetConsoleOutputCP();
	if (nCodePage == 936)
	{
		return UTF8ToGBK(strUTF8);
	}
	else
	{
		return strUTF8;
	}
#else
	return strUTF8;
#endif
}
#define PrintRsp(str)	std::cout << str << endl;\
						string strBody;\
						ProtoBufToBodyData(stRsp, strBody);\
						std::cout << strBody << endl;
#define Print(str) std::cout << str << endl;
#define PrintError(errMsg) std::cout << "ERROR: " << __FUNCTION__ << ", retMsg = " << errMsg << std::endl;
#define PrintUTF8(errMsg) std::cout << "ERROR: " << __FUNCTION__ << ", retMsg = " << UTF8ToLocal(errMsg) << std::endl;
inline void CPSleep(int32_t nSec)
{
#ifdef _WIN32
	Sleep(nSec * 1000);
#else
	struct timespec spec;
	spec.tv_sec = nSec;
	spec.tv_nsec = 0;
	nanosleep(&spec, NULL);
#endif
}
class Semaphore
{
#if defined(_WIN32)
	HANDLE m_sema;
#else
	sem_t *m_sem;
#endif
public:
	Semaphore(int32_t initValue)
	{
#if defined(_WIN32)
		m_sema = ::CreateSemaphoreA(NULL, initValue, 0x7fffffff, NULL);
#else
        pid_t pid = getpid();
        stringstream str;
        str << "ftapi.sample." << (long)pid;
		m_sem = ::sem_open(str.str().c_str(), O_CREAT | O_EXCL, S_IRWXU, initValue);
#endif
	}
	~Semaphore()
	{
#if defined(_WIN32)
		::CloseHandle(m_sema);
#else
		::sem_close(m_sem);
#endif
	}
	void wait()
	{
#if defined(_WIN32)
		::WaitForSingleObject(m_sema, INFINITE);
#else
		::sem_wait(m_sem);
#endif
	}
	void post()
	{
#if defined(_WIN32)
		::ReleaseSemaphore(m_sema, 1, NULL);
#else
		::sem_post(m_sem);
#endif
	}
	bool trywait()
	{
#if defined(_WIN32)
		return WAIT_OBJECT_0 == ::WaitForSingleObject(m_sema, 0);
#else
		return 0 == ::sem_trywait(m_sem);
#endif
	}
};