/* * This file is part of MXE. See LICENSE.md for licensing information. */ #include <iostream> #include <boost/archive/xml_oarchive.hpp> #include <boost/thread/thread.hpp> #include <boost/thread/tss.hpp> boost::thread_specific_ptr<int> ptr; // https://www.boost.org/doc/libs/1_60_0/libs/context/doc/html/context/context.html #include <boost/context/all.hpp> boost::context::fcontext_t fcm,fc1,fc2; void test_thread() { if (ptr.get() == 0) { ptr.reset(new int(0)); } std::cout << "Hello, World! from thread" << std::endl; } void f1(intptr_t) { std::cout<<"f1: entered"<<std::endl; std::cout<<"f1: call jump_fcontext( & fc1, fc2, 0)"<< std::endl; boost::context::jump_fcontext(&fc1,fc2,0); std::cout<<"f1: return"<<std::endl; boost::context::jump_fcontext(&fc1,fcm,0); } void f2(intptr_t) { std::cout<<"f2: entered"<<std::endl; std::cout<<"f2: call jump_fcontext( & fc2, fc1, 0)"<<std::endl; boost::context::jump_fcontext(&fc2,fc1,0); BOOST_ASSERT(false&&!"f2: never returns"); } int main(int argc, char *argv[]) { (void)argc; (void)argv; boost::archive::xml_oarchive oa(std::cout); std::string s = "\n\n Hello, World!\n\n"; oa << BOOST_SERIALIZATION_NVP(s); boost::thread thrd(test_thread); thrd.join(); std::size_t size(8192); void* sp1(std::malloc(size)); void* sp2(std::malloc(size)); fc1=boost::context::make_fcontext(sp1,size,f1); fc2=boost::context::make_fcontext(sp2,size,f2); std::cout<<"main: call jump_fcontext( & fcm, fc1, 0)"<<std::endl; boost::context::jump_fcontext(&fcm,fc1,0); return 0; }