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7c673cae FG |
1 | |
2 | // Copyright Oliver Kowalke 2014. | |
3 | // Distributed under the Boost Software License, Version 1.0. | |
4 | // (See accompanying file LICENSE_1_0.txt or copy at | |
5 | // http://www.boost.org/LICENSE_1_0.txt) | |
6 | ||
7 | #include <cstdlib> | |
8 | #include <iostream> | |
b32b8144 | 9 | #include <memory> |
7c673cae FG |
10 | |
11 | #include <boost/coroutine2/all.hpp> | |
12 | ||
13 | #ifdef BOOST_MSVC //MS VisualStudio | |
14 | __declspec(noinline) void access( char *buf); | |
15 | #else // GCC | |
16 | void access( char *buf) __attribute__ ((noinline)); | |
17 | #endif | |
b32b8144 | 18 | void access( char *buf) { |
7c673cae FG |
19 | buf[0] = '\0'; |
20 | } | |
21 | ||
b32b8144 | 22 | void bar( int i) { |
7c673cae | 23 | char buf[4 * 1024]; |
b32b8144 | 24 | if ( i > 0) { |
7c673cae FG |
25 | access( buf); |
26 | std::cout << i << ". iteration" << std::endl; | |
27 | bar( i - 1); | |
28 | } | |
29 | } | |
30 | ||
31 | int main() { | |
32 | int count = 384; | |
7c673cae FG |
33 | #if defined(BOOST_USE_SEGMENTED_STACKS) |
34 | std::cout << "using segmented_stack stacks: allocates " << count << " * 4kB == " << 4 * count << "kB on stack, "; | |
35 | std::cout << "initial stack size = " << boost::context::segmented_stack::traits_type::default_size() / 1024 << "kB" << std::endl; | |
36 | std::cout << "application should not fail" << std::endl; | |
37 | #else | |
38 | std::cout << "using standard stacks: allocates " << count << " * 4kB == " << 4 * count << "kB on stack, "; | |
39 | std::cout << "initial stack size = " << boost::context::fixedsize_stack::traits_type::default_size() / 1024 << "kB" << std::endl; | |
40 | std::cout << "application might fail" << std::endl; | |
41 | #endif | |
b32b8144 FG |
42 | boost::coroutines2::coroutine< void >::pull_type coro{ |
43 | [count](boost::coroutines2::coroutine< void >::push_type & coro){ | |
7c673cae | 44 | bar( count); |
b32b8144 FG |
45 | }}; |
46 | std::cout << "main: done" << std::endl; | |
47 | return EXIT_SUCCESS; | |
7c673cae | 48 | } |