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cpps_coroutine.h
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168 lines (123 loc) · 3.5 KB
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#ifndef CPPS_COROUTINE_H_
#define CPPS_COROUTINE_H_
#ifndef STACK_LIMIT
#define STACK_LIMIT (1024*1024)
#endif
#include "cpps_def.h"
#include <cstdint>
#include <cstring>
#include <cstdio>
#include <cassert>
#include <string>
#include <vector>
#include <list>
using ::std::string;
using ::std::wstring;
#ifdef _MSC_VER
#include <Windows.h>
#include <thread>
//#if _MSVC_LANG > 201799L
//#include <coroutine>
//#else
//#include <experimental/coroutine>
//#endif
#else
#if defined(__APPLE__) && defined(__MACH__)
#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Wdeprecated-declarations"
#include <ucontext.h>
#else
#include <ucontext.h>
#endif
#endif
namespace cpps {
namespace coroutine {
typedef cpps::usint64 routine_t;
#ifdef _MSC_VER
struct Routine
{
std::function<void()> func;
bool finished;
LPVOID fiber;
Routine(std::function<void()> f);
~Routine();
};
struct Ordinator
{
std::vector<Routine*> routines;
std::list<routine_t> indexes;
routine_t current;
size_t stack_size;
LPVOID fiber;
bool isterminate;
Ordinator(size_t ss = STACK_LIMIT);
~Ordinator();
};
routine_t create(Ordinator& ordinator, std::function<void()> f);
void destroy(Ordinator& ordinator, routine_t id);
void __stdcall entry(LPVOID lpParameter);
int resume(Ordinator& ordinator, routine_t id);
void yield(Ordinator& ordinator);
routine_t current(Ordinator& ordinator);
template<typename Function, class... _ArgTypes>
std::_Invoke_result_t<std::decay_t<Function>, std::decay_t<_ArgTypes>...>
wait_for(Ordinator* ordinator,Function&& func, _ArgTypes&&... _Args)
{
auto future = std::async(std::launch::async, func,_Args...);
std::future_status status = future.wait_for(std::chrono::milliseconds(1));
while (status == std::future_status::timeout && !ordinator->isterminate)
{
if (ordinator->current != 0)
yield(*ordinator);
status = future.wait_for(std::chrono::milliseconds(1));
}
return future.get();
}
#else
struct Routine
{
std::function<void()> func;
char* stack;
bool finished;
ucontext_t ctx;
Routine(std::function<void()> f);
~Routine();
};
struct Ordinator
{
std::vector<Routine*> routines;
std::list<routine_t> indexes;
routine_t current;
size_t stack_size;
bool isterminate;
ucontext_t ctx;
Ordinator(size_t ss = STACK_LIMIT);
~Ordinator();
};
routine_t create(Ordinator& ordinator, std::function<void()> f);
void destroy(Ordinator& ordinator, routine_t id);
void entry(Ordinator* ordinator);
int resume(Ordinator& ordinator, routine_t id);
void yield(Ordinator& ordinator);
routine_t current(Ordinator& ordinator);
template<typename Function, class... _ArgTypes>
typename std::result_of<Function(_ArgTypes...)>::type
wait_for(Ordinator* ordinator, Function&& func, _ArgTypes&&... _Args)
{
auto future = std::async(std::launch::async, func,_Args...);
std::future_status status = future.wait_for(std::chrono::milliseconds(1));
while (status == std::future_status::timeout && !ordinator->isterminate)
{
if (ordinator->current != 0)
yield(*ordinator);
status = future.wait_for(std::chrono::milliseconds(1));
}
return future.get();
}
#endif
}
}
#if defined(__APPLE__) && defined(__MACH__)
#pragma clang diagnostic pop
#endif
#endif //CPPS_COROUTINE_H_