#include <lua.hpp>
#define QUOTE(...) #__VA_ARGS__
static void call_hook(lua_State *L, lua_Debug *ar){
printf("call_hook %d %d\n", ar->event, lua_status(L));
lua_yield(L, 0);
}
int main(int argc, char* argv[]) {
lua_State *L = luaL_newstate();
lua_State *l = lua_newthread(L);
luaL_openlibs(l);
luaL_loadstring(l, QUOTE(
print("hello1")
print("hello2")
print("hello3")
));
int rc = 1;
while (rc) {
int nres;
lua_sethook(l, call_hook, LUA_MASKCALL, 0);
rc = lua_resume(l, NULL, 0, &nres);
printf("rc = %d\n", rc);
}
lua_close(L);
}
----------------------------------------------------
output:
call_hook 0 0
call_hook 0 1
rc = 1
hello2
hello3
rc = 0
why print("hello1") disappeared?
