fix bad thread status

This commit is contained in:
ThePhD 2017-11-29 13:34:54 -05:00
parent e17455f5b6
commit a8b2c257da
3 changed files with 38 additions and 176 deletions

View File

@ -17,18 +17,8 @@ You'll need to ``#include <sol.hpp>``/``#include "sol.hpp"`` somewhere in your c
opening a state opening a state
--------------- ---------------
.. code-block:: cpp .. literalinclude:: ../../../examples/tutorials/quick_n_dirty/opening_a_state.cpp
:linenos:
#define SOL_CHECK_ARGUMENTS 1
#include <sol.hpp>
int main (int argc, char* argv[]) {
sol::state lua;
// open some common libraries
lua.open_libraries(sol::lib::base, sol::lib::package);
// go!
lua.script( "print('bark bark bark!')" );
}
.. _sol-state-on-lua-state: .. _sol-state-on-lua-state:
@ -38,194 +28,64 @@ using sol2 on a lua_State*
For your system/game that already has Lua or uses an in-house or pre-rolled Lua system (LuaBridge, kaguya, Luwra, etc.), but you'd still like sol2 and nice things: For your system/game that already has Lua or uses an in-house or pre-rolled Lua system (LuaBridge, kaguya, Luwra, etc.), but you'd still like sol2 and nice things:
.. code-block:: cpp
#define SOL_CHECK_ARGUMENTS 1 .. literalinclude:: ../../../examples/tutorials/quick_n_dirty/opening_state_on_raw_lua.cpp
#include <sol.hpp> :linenos:
#include <iostream>
int use_sol2(lua_State* L) {
sol::state_view lua(L);
lua.script("print('bark bark bark!')");
return 0;
}
int main(int, char*[]) {
std::cout << "=== opening sol::state_view on raw Lua example ===" << std::endl;
lua_State* L = luaL_newstate();
luaL_openlibs(L);
lua_pushcclosure(L, &use_sol2, 0);
lua_setglobal(L, "use_sol2");
if (luaL_dostring(L, "use_sol2()")) {
lua_error(L);
return -1;
}
std::cout << std::endl;
return 0;
}
running lua code running lua code
---------------- ----------------
.. code-block:: cpp .. literalinclude:: ../../../examples/tutorials/quick_n_dirty/running_lua_code.cpp
:linenos:
#define SOL_CHECK_ARGUMENTS 1 :lines: 1-10, 16-26
#include <sol.hpp>
#include <iostream>
#include <cassert>
int main(int, char*[]) {
std::cout << "=== running lua code example ===" << std::endl;
sol::state lua;
lua.open_libraries(sol::lib::base);
sol::state lua;
// load and execute from string
lua.script("a = 'test'");
// load and execute from file
lua.script_file("a_lua_script.lua");
// run a script, get the result
int value = lua.script("return 54");
assert(value == 54);
/* ... continued in next block */
To run Lua code but have an error handler in case things go wrong: To run Lua code but have an error handler in case things go wrong:
.. code-block:: cpp .. literalinclude:: ../../../examples/tutorials/quick_n_dirty/running_lua_code.cpp
:linenos:
/* ... from previous block */ :lines: 28-
auto bad_code_result = lua.script("123 herp.derp", [](lua_State* L, sol::protected_function_result pfr) {
// pfr will contain things that went wrong, for either loading or executing the script
// Can throw your own custom error
// You can also just return it, and let the call-site handle the error if necessary.
return pfr;
});
// it did not work
assert(!bad_code_result.valid());
// the default handler panics or throws, depending on your settings
// uncomment for explosions:
//auto bad_code_result_2 = lua.script("bad.code", &sol::script_default_on_error);
std::cout << std::endl;
return 0;
}
set and get variables set and get variables
--------------------- ---------------------
You can set/get everything. You can set/get everything using table-like syntax.
.. code-block:: cpp .. literalinclude:: ../../../examples/tutorials/quick_n_dirty/set_and_get_variables.cpp
:linenos:
:lines: 1-19
sol::lua_state lua; Equivalent to loading lua values like so:
lua.open_libraries(sol::lib::base); .. literalinclude:: ../../../examples/tutorials/quick_n_dirty/set_and_get_variables.cpp
:linenos:
:lines: 22-34
// integer types You can show they are equivalent:
lua.set("number", 24);
// floating point numbers .. literalinclude:: ../../../examples/tutorials/quick_n_dirty/set_and_get_variables.cpp
lua["number2"] = 24.5; :linenos:
:lines: 36-44
// string types
lua["important_string"] = "woof woof";
// is callable, therefore gets stored as a function
lua["a_function"] = [](){ return 100; };
// otherwise, non-recognized types is stored as userdata
// make a table
lua["some_table"] = lua.create_table_with("value", 24);
Equivalent to loading a lua file with:
.. code-block:: lua
number = 24
number2 = 24.5
important_string = "woof woof"
a_function = function () return 100 end
some_table = { value = 24 }
Retrieve these variables using this syntax: Retrieve these variables using this syntax:
.. code-block:: cpp .. literalinclude:: ../../../examples/tutorials/quick_n_dirty/set_and_get_variables.cpp
:linenos:
// implicit conversion :lines: 45-64
int number = lua["number"];
// explicit get
auto number2 = lua.get<double>("number2");
// strings too
std::string important_string = lua["important_string"];
// dig into a table
int value = lua["some_table"]["value"];
// get a function
sol::function a_function = lua["a_function"];
int value_is_100 = a_function();
// value_is_100 == 100
// convertible to std::function
std::function<int()> a_std_function = a_function;
int value_is_still_100 = a_std_function();
// value_is_still_100 == 100
Retrieve Lua types using ``object`` and other ``sol::`` types. Retrieve Lua types using ``object`` and other ``sol::`` types.
.. code-block:: cpp .. literalinclude:: ../../../examples/tutorials/quick_n_dirty/set_and_get_variables.cpp
:linenos:
:lines: 66-
sol::state lua; You can erase things by setting it to ``nullptr`` or ``sol::lua_nil``.
// ... everything from before .. literalinclude:: ../../../examples/tutorials/quick_n_dirty/set_and_get_variables_exists.cpp
:linenos:
sol::object number_obj = lua.get<sol::object>( "number" ); Note that if its a :doc:`userdata/usertype<../api/usertype>` for a C++ type, the destructor will run only when the garbage collector deems it appropriate to destroy the memory. If you are relying on the destructor being run when its set to ``sol::lua_nil``, you're probably committing a mistake.
// sol::type::number
sol::type t1 = number_obj.get_type();
sol::object function_obj = lua[ "a_function" ];
// sol::type::function
sol::type t2 = function_obj.get_type();
bool is_it_really = function_obj.is<std::function<int()>>(); // true
// will not contain data
sol::optional<int> check_for_me = lua["a_function"];
You can erase things by setting it to ``nullptr`` or ``sol::nil``.
.. code-block:: cpp
sol::state lua;
lua.script("exists = 250");
int first_try = lua.get_or( "exists", 322 );
// first_try == 250
lua.set("exists", sol::nil);
int second_try = lua.get_or( "exists", 322 );
// second_try == 322
Note that if its a :doc:`userdata/usertype<../api/usertype>` for a C++ type, the destructor will run only when the garbage collector deems it appropriate to destroy the memory. If you are relying on the destructor being run when its set to ``sol::nil``, you're probably committing a mistake.
tables tables
------ ------

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@ -20,8 +20,8 @@
// CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. // CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
// This file was generated with a script. // This file was generated with a script.
// Generated 2017-11-21 19:35:19.155726 UTC // Generated 2017-11-29 18:34:24.375352 UTC
// This header was generated with sol v2.18.7 (revision a0de11a) // This header was generated with sol v2.18.7 (revision e17455f)
// https://github.com/ThePhD/sol2 // https://github.com/ThePhD/sol2
#ifndef SOL_SINGLE_INCLUDE_HPP #ifndef SOL_SINGLE_INCLUDE_HPP
@ -19747,7 +19747,8 @@ namespace sol {
thread_status status() const { thread_status status() const {
lua_State* lthread = thread_state(); lua_State* lthread = thread_state();
thread_status lstat = static_cast<thread_status>(lua_status(lthread)); thread_status lstat = static_cast<thread_status>(lua_status(lthread));
if (lstat != thread_status::ok && lua_gettop(lthread) == 0) { int stacksize = lua_gettop(lthread);
if (lstat != thread_status::ok && lstat != thread_status::yielded && stacksize == 0) {
// No thing on the basic_thread's stack means its dead // No thing on the basic_thread's stack means its dead
return thread_status::dead; return thread_status::dead;
} }

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@ -172,7 +172,8 @@ namespace sol {
thread_status status() const { thread_status status() const {
lua_State* lthread = thread_state(); lua_State* lthread = thread_state();
thread_status lstat = static_cast<thread_status>(lua_status(lthread)); thread_status lstat = static_cast<thread_status>(lua_status(lthread));
if (lstat != thread_status::ok && lua_gettop(lthread) == 0) { int stacksize = lua_gettop(lthread);
if (lstat != thread_status::ok && lstat != thread_status::yielded && stacksize == 0) {
// No thing on the basic_thread's stack means its dead // No thing on the basic_thread's stack means its dead
return thread_status::dead; return thread_status::dead;
} }