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#pragma once
#ifdef __cplusplus
extern "C" {
#endif // __cplusplus
#include "lua.h"
#include "lualib.h"
#include "lauxlib.h"
#ifdef __cplusplus
}
#endif // __cplusplus
#include "uniquekey.h"
#include "macros_and_utils.h"
// ################################################################################################
struct Lane; // forward
/*
* Lane cancellation request modes
*/
enum class CancelRequest
{
None, // no pending cancel request
Soft, // user wants the lane to cancel itself manually on cancel_test()
Hard // user wants the lane to be interrupted (meaning code won't return from those functions) from inside linda:send/receive calls
};
enum class CancelResult
{
Timeout,
Cancelled,
Killed
};
enum CancelOp
{
CO_Invalid = -2,
CO_Hard = -1,
CO_Soft = 0,
CO_Count = LUA_MASKCOUNT,
CO_Line = LUA_MASKLINE,
CO_Call = LUA_MASKCALL,
CO_Ret = LUA_MASKRET,
};
// crc64/we of string "CANCEL_ERROR" generated at http://www.nitrxgen.net/hashgen/
static constexpr UniqueKey CANCEL_ERROR{ 0xe97d41626cc97577ull }; // 'cancel_error' sentinel
// crc64/we of string "CANCEL_TEST_KEY" generated at http://www.nitrxgen.net/hashgen/
static constexpr UniqueKey CANCEL_TEST_KEY{ 0xe66f5960c57d133aull }; // used as registry key
CancelResult thread_cancel(lua_State* L, Lane* s, CancelOp op_, double secs_, bool force_, double waitkill_timeout_);
static inline int cancel_error( lua_State* L)
{
STACK_GROW( L, 1);
CANCEL_ERROR.push(L); // special error value
return lua_error( L); // doesn't return
}
// ################################################################################################
// ################################################################################################
LUAG_FUNC( cancel_test);
LUAG_FUNC( thread_cancel);
// ################################################################################################
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