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#include "../lib/objc.c"
#include <objc/runtime.h>
#include <stdio.h>
#include <assert.h>
#import <Foundation/Foundation.h>
static void *what_to_call(void *a, void *b) {
printf("what_to_call: %p %p\n", a, b);
return a;
}
static void imp1(id self, SEL sel, int a, int b) {
NSLog(@"imp1: self=%@ sel=%s a=%d b=%d\n", self, sel_getName(sel), a, b);
}
struct big {
int x[10];
};
static struct big imp2(id self, SEL sel, int a, int b) {
NSLog(@"imp2: self=%@ sel=%s a=%d b=%d\n", self, sel_getName(sel), a, b);
return (struct big) {{4}};
}
struct big (^test)(id, int) = ^(id self, int a) {
NSLog(@"self=%@ a=%d", self, a);
return (struct big) {{0}};
};
int main() {
SEL sel = @selector(some);
IMP imp;
assert(!get_trampoline(what_to_call, imp1, (void *) 0x123, &imp));
printf("imp = %p\n", imp);
((void (*)(id, SEL, int, int)) imp)(@"foo", sel, 1, 2);
free_trampoline(imp);
assert(!get_trampoline(what_to_call, imp2, (void *) 0x123, &imp));
struct big big = ((struct big (*)(id, SEL, int, int)) imp)(@"bar", sel, 1, 2);
printf("out? %d\n", big.x[0]);
/* test alloc/free */
enum { n = 10000 };
static void *imps[n];
for(size_t i = 0; i < n; i++) {
assert(!get_trampoline(what_to_call, imp1, (void *) 0x123, &imps[i]));
}
for(size_t i = 0; i < n; i++) {
assert(imps[i]);
if (arc4random() & 1) {
free_trampoline(imps[i]);
imps[i] = NULL;
}
}
for(size_t i = 0; i < n; i++) {
if (imps[i]) {
free_trampoline(imps[i]);
imps[i] = NULL;
}
}
}
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