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/*************************************************************************
> File Name: tsg_lua_interface.h
> Author: pxz
> Created Time: Wed 08 Jul 2020 02:50:42 PM CST
************************************************************************/
#ifndef __TSG_LUA_INTERFACE__
#define __TSG_LUA_INTERFACE__
#include <stddef.h>
enum lua_type
{
NIL = 0,
STRING = 1,
INTEGER,
BOOLEAN,
};
struct lua_data
{
enum lua_type type;
size_t len;
union{
char *string;
long num;
bool flag;
};
};
struct lua_vm;
/* function name: tsg_lua_vm_create
* input: char *name the name of virtual machine, default: "TSG"
* return value: tsg_lua_handle successed,return a virtual machine; failed, return NULL*/
struct lua_vm *lua_vm_create(const char *vm_name);
int lua_remove_function(struct lua_vm *vm, const char *lua_function);
const char *lua_get_last_error_string(struct lua_vm *vm);
/* function name: tsg_destory_lua
* input: tsg_lua_handle L a virtual machine
* return value: int successed, return 0; failed, return error code */
int lua_vm_destory(struct lua_vm *vm);
struct lua_cbinding_params;
struct lua_cbinding_params *lua_cbinding_get_last_params(struct lua_vm *vm);
struct lua_data *lua_cbinging_get_next_para(struct lua_cbinding_params *params);
void lua_cbinding_free_params(struct lua_cbinding_params *params);
int lua_cbinding_return(struct lua_vm *vm, struct lua_data *data);
int lua_cbinding_return_pair(struct lua_vm *vm, struct lua_data *data1, struct lua_data *data2);
/* function name: lua_get_userdata
* description: get C userdata
* input: tsg_lua_handle L a virtual machine
* return value: int successed, return 0; failed, return error code */
void *lua_get_exec_userdata(struct lua_vm *vm);
typedef int (*lua_cbinding_func_ptr)(struct lua_vm *vm);
/* function name: lua_register_function
* description: Regist a c function to lua
* input: tsg_lua_handle L a virtual machine
* input: const char *function_set The function set to which the function belongs
* input: const char *function_name function name
* input: lua_function_ptr function function pointer
* return value: int successed, return 0; failed return 1 */
int lua_register_cbinding(struct lua_vm *vm, const char *namespace, const char *lua_func_name, lua_cbinding_func_ptr c_func_ptr);
struct lua_context;
/* function name: lua_script_context_malloc
* input: tsg_lua_handle L
* return value: lua_script_context failed, return NULL; successed, return a context*/
struct lua_context *lua_context_create(struct lua_vm *vm, const char *ctx_name);
/* function name: lua_script_context_free
* input: tsg_lua_handle L
* input: lua_script_context context context waiting to free
* return value: int successed, return 0; failed, return -1 */
int lua_context_destroy(struct lua_vm *vm, struct lua_context *ctx);
/* function name: tsg_lua_cache_script
* input: tsg_lua_handle L a virtual machine
* char *script script waiting to be cached, which must be script`s content
* size_t *script_len the length of script waiting to be cached
*
* return value: int successed, return a script id which is bigger than 1; failed, return error code */
size_t lua_cache_script(struct lua_vm *vm, const char *script, size_t script_len);
/* function name: lua_cache_exec
* input: tsg_lua_handle L a virtual machine
* size_t script_id a script id
* struct lua_data_t in data waiting to be handled
* void *userdata can get the userdata with lua_get_userdata(L)
* lua_script_context context Can accessed with lua-name.context in lua script
* size_t timeout_ms Maximum time to run the script.if timeout_ms > 0, jit.off; timeout_ms == 0, jit.on, not expired.
* output: struct lua_arg_t *outvalue Requires input of an expected type that is not NIL, the type of the result that will be output after the call is complete
* return value: int successed, return 0; failed, return error code */
int lua_cache_exec(struct lua_vm *vm, size_t script_id, struct lua_data *in, void *userdata, struct lua_context *ctx, size_t timeout_ms, struct lua_data *out);
/* function name: tsg_unchache_script
* input: tsg_lua_handle L a virtual machine
* size_t script_id a script id
* return value: int successed, return 0; failed, return error code */
int lua_uncache_script(struct lua_vm *vm, size_t script_id);
#endif
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