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| author | Andy <drumsetmonkey@gmail.com> | 2019-08-29 13:07:45 -0400 |
|---|---|---|
| committer | Andy <drumsetmonkey@gmail.com> | 2019-08-29 13:07:45 -0400 |
| commit | 4ac4b280abf2ffa28caa5a532353115a3033444f (patch) | |
| tree | 2a13d658bb454360b2faf401244bb0321d3460d4 /lib/sol2/examples/source/docs/state_transfer.cpp | |
| parent | e9758416b18b27a65337c28d9641afc0ee89b34b (diff) | |
| parent | 7a46fa2dd3dad3f038bf8e7339bc67abca428ae6 (diff) | |
Started creating scripting library/namespace and added sol2 for interfacing
Diffstat (limited to 'lib/sol2/examples/source/docs/state_transfer.cpp')
| -rw-r--r-- | lib/sol2/examples/source/docs/state_transfer.cpp | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/lib/sol2/examples/source/docs/state_transfer.cpp b/lib/sol2/examples/source/docs/state_transfer.cpp new file mode 100644 index 0000000..1728810 --- /dev/null +++ b/lib/sol2/examples/source/docs/state_transfer.cpp @@ -0,0 +1,48 @@ +#define SOL_ALL_SAFETIES_ON 1 + +#include <sol/sol.hpp> + +#include <assert.hpp> +#include <iostream> + +int main (int, char*[]) { + + sol::state lua; + lua.open_libraries(); + sol::function transferred_into; + lua["f"] = [&lua, &transferred_into](sol::object t, sol::this_state this_L) { + std::cout << "state of main : " << (void*)lua.lua_state() << std::endl; + std::cout << "state of function : " << (void*)this_L.lua_state() << std::endl; + // pass original lua_State* (or sol::state/sol::state_view) + // transfers ownership from the state of "t", + // to the "lua" sol::state + transferred_into = sol::function(lua, t); + }; + + lua.script(R"( + i = 0 + function test() + co = coroutine.create( + function() + local g = function() i = i + 1 end + f(g) + g = nil + collectgarbage() + end + ) + coroutine.resume(co) + co = nil + collectgarbage() + end + )"); + + // give it a try + lua.safe_script("test()"); + // should call 'g' from main thread, increment i by 1 + transferred_into(); + // check + int i = lua["i"]; + c_assert(i == 1); + + return 0; +} |