Created
September 19, 2011 05:03
-
-
Save 7shi/1225997 to your computer and use it in GitHub Desktop.
make thunk with JIT wrapper
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
#include <stdio.h> | |
#include "xbyak/xbyak.h" | |
template <class T> | |
struct Delegate : public Xbyak::CodeGenerator { | |
Delegate(T *t, void (T::*p)()) { | |
mov(ecx, reinterpret_cast<intptr_t>(t)); | |
jmp(*reinterpret_cast<void **>(&p)); | |
} | |
void (*getPtr())() { | |
return reinterpret_cast<void (*)()>( | |
const_cast<Xbyak::uint8 *>(getCode())); | |
} | |
}; | |
struct Test1 { | |
int n; | |
Test1(int n) : n(n) {} | |
void show() { | |
printf("%d\n", n); | |
} | |
}; | |
struct Test2 { | |
int n; | |
Test2(int n) : n(n) {} | |
void show() { | |
printf("%d\n", n); | |
} | |
}; | |
struct Test3 { | |
static void show() { | |
printf("?\n"); | |
} | |
}; | |
void show() { | |
printf("!\n"); | |
} | |
void call(void (*f)()) { f(); } | |
int main() { | |
Test1 t1(1); | |
Test2 t2(2); | |
Delegate<Test1> d1(&t1, &Test1::show); | |
Delegate<Test2> d2(&t2, &Test2::show); | |
call(d1.getPtr()); | |
call(d2.getPtr()); | |
call(Test3::show); | |
call(show); | |
} |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment