// Copyright Oliver Kowalke 2009. // Distributed under the Boost Software License, Version 1.0. // (See accompanying file LICENSE_1_0.txt or copy at // http://www.boost.org/LICENSE_1_0.txt) #include <cstdlib> #include <iostream> #include <boost/context/all.hpp> #include <boost/exception_ptr.hpp> #include "simple_stack_allocator.hpp" namespace ctx = boost::context; typedef ctx::simple_stack_allocator< 8 * 1024 * 1024, // 8MB 64 * 1024, // 64kB 8 * 1024 // 8kB > stack_allocator; ctx::fcontext_t fcm = 0; ctx::fcontext_t fc = 0; boost::exception_ptr except; void f( intptr_t arg) { try { throw std::runtime_error( ( char *) arg); } catch ( std::runtime_error const& e) { except = boost::current_exception(); } ctx::jump_fcontext( & fc, fcm, arg); } int main( int argc, char * argv[]) { stack_allocator alloc; void * base = alloc.allocate( stack_allocator::default_stacksize()); fc = ctx::make_fcontext( base, stack_allocator::default_stacksize(), f); std::cout << "main: call start_fcontext( & fcm, fc, 0)" << std::endl; const char * what = "hello world"; ctx::jump_fcontext( & fcm, fc, ( intptr_t) what); try { if ( except) boost::rethrow_exception( except); } catch ( std::exception const& ex) { std::cerr << "exception: " << ex.what() << std::endl; } std::cout << "main: done" << std::endl; return EXIT_SUCCESS; }