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#include <stdlib.h>
#include <stdio.h>
#include <assert.h>
#include <string.h>
#include <stdint.h>
#include <mimalloc.h>
#include <new>
#include <vector>
#include <future>
#include <iostream>
#include <thread>
#include <mimalloc.h>
#include <assert.h>
#ifdef _WIN32
#include <mimalloc-new-delete.h>
#endif
#ifdef _WIN32
#include <Windows.h>
static void msleep(unsigned long msecs) { Sleep(msecs); }
#else
#include <unistd.h>
static void msleep(unsigned long msecs) { usleep(msecs * 1000UL); }
#endif
static void heap_thread_free_large(); // issue #221
static void heap_no_delete(); // issue #202
static void heap_late_free(); // issue #204
static void padding_shrink(); // issue #209
static void various_tests();
static void test_mt_shutdown();
static void fail_aslr(); // issue #372
static void tsan_numa_test(); // issue #414
static void strdup_test(); // issue #445
int main() {
mi_stats_reset(); // ignore earlier allocations
heap_thread_free_large();
heap_no_delete();
heap_late_free();
padding_shrink();
various_tests();
tsan_numa_test();
strdup_test();
test_mt_shutdown();
//fail_aslr();
mi_stats_print(NULL);
return 0;
}
static void* p = malloc(8);
void free_p() {
free(p);
return;
}
class Test {
private:
int i;
public:
Test(int x) { i = x; }
~Test() { }
};
static void various_tests() {
atexit(free_p);
void* p1 = malloc(78);
void* p2 = mi_malloc_aligned(24, 16);
free(p1);
p1 = malloc(8);
char* s = mi_strdup("hello\n");
mi_free(p2);
p2 = malloc(16);
p1 = realloc(p1, 32);
free(p1);
free(p2);
mi_free(s);
Test* t = new Test(42);
delete t;
t = new (std::nothrow) Test(42);
delete t;
}
class Static {
private:
void* p;
public:
Static() {
p = malloc(64);
return;
}
~Static() {
free(p);
return;
}
};
static Static s = Static();
static bool test_stl_allocator1() {
std::vector<int, mi_stl_allocator<int> > vec;
vec.push_back(1);
vec.pop_back();
return vec.size() == 0;
}
struct some_struct { int i; int j; double z; };
static bool test_stl_allocator2() {
std::vector<some_struct, mi_stl_allocator<some_struct> > vec;
vec.push_back(some_struct());
vec.pop_back();
return vec.size() == 0;
}
// issue 445
static void strdup_test() {
#ifdef _MSC_VER
char* s = _strdup("hello\n");
char* buf = NULL;
size_t len;
_dupenv_s(&buf, &len, "MIMALLOC_VERBOSE");
mi_free(buf);
mi_free(s);
#endif
}
// Issue #202
static void heap_no_delete_worker() {
mi_heap_t* heap = mi_heap_new();
void* q = mi_heap_malloc(heap, 1024);
// mi_heap_delete(heap); // uncomment to prevent assertion
}
static void heap_no_delete() {
auto t1 = std::thread(heap_no_delete_worker);
t1.join();
}
// Issue #204
static volatile void* global_p;
static void t1main() {
mi_heap_t* heap = mi_heap_new();
global_p = mi_heap_malloc(heap, 1024);
mi_heap_delete(heap);
}
static void heap_late_free() {
auto t1 = std::thread(t1main);
msleep(2000);
assert(global_p);
mi_free((void*)global_p);
t1.join();
}
// issue #209
static void* shared_p;
static void alloc0(/* void* arg */)
{
shared_p = mi_malloc(8);
}
static void padding_shrink(void)
{
auto t1 = std::thread(alloc0);
t1.join();
mi_free(shared_p);
}
// Issue #221
static void heap_thread_free_large_worker() {
mi_free(shared_p);
}
static void heap_thread_free_large() {
for (int i = 0; i < 100; i++) {
shared_p = mi_malloc_aligned(2*1024*1024 + 1, 8);
auto t1 = std::thread(heap_thread_free_large_worker);
t1.join();
}
}
static void test_mt_shutdown()
{
const int threads = 5;
std::vector< std::future< std::vector< char* > > > ts;
auto fn = [&]()
{
std::vector< char* > ps;
ps.reserve(1000);
for (int i = 0; i < 1000; i++)
ps.emplace_back(new char[1]);
return ps;
};
for (int i = 0; i < threads; i++)
ts.emplace_back(std::async(std::launch::async, fn));
for (auto& f : ts)
for (auto& p : f.get())
delete[] p;
std::cout << "done" << std::endl;
}
// issue #372
static void fail_aslr() {
size_t sz = (4ULL << 40); // 4TiB
void* p = malloc(sz);
printf("pointer p: %p: area up to %p\n", p, (uint8_t*)p + sz);
*(int*)0x5FFFFFFF000 = 0; // should segfault
}
// issues #414
static void dummy_worker() {
void* p = mi_malloc(0);
mi_free(p);
}
static void tsan_numa_test() {
auto t1 = std::thread(dummy_worker);
dummy_worker();
t1.join();
}
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