forked from 0ad/0ad
74 lines
2.5 KiB
C++
74 lines
2.5 KiB
C++
/* Copyright (c) 2010 Wildfire Games
|
|
*
|
|
* Permission is hereby granted, free of charge, to any person obtaining
|
|
* a copy of this software and associated documentation files (the
|
|
* "Software"), to deal in the Software without restriction, including
|
|
* without limitation the rights to use, copy, modify, merge, publish,
|
|
* distribute, sublicense, and/or sell copies of the Software, and to
|
|
* permit persons to whom the Software is furnished to do so, subject to
|
|
* the following conditions:
|
|
*
|
|
* The above copyright notice and this permission notice shall be included
|
|
* in all copies or substantial portions of the Software.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
|
|
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
|
|
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
|
|
* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
|
|
* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
|
|
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
|
|
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
|
|
*/
|
|
|
|
#include "lib/self_test.h"
|
|
|
|
#include "lib/res/file/file_cache.h"
|
|
#include "lib/rand.h"
|
|
|
|
class TestFileCache : public CxxTest::TestSuite
|
|
{
|
|
enum { TEST_ALLOC_TOTAL = 100*1000*1000 };
|
|
public:
|
|
void test_cache_allocator()
|
|
{
|
|
// allocated address -> its size
|
|
typedef std::map<void*, size_t> AllocMap;
|
|
AllocMap allocations;
|
|
|
|
// put allocator through its paces by allocating several times
|
|
// its capacity (this ensures memory is reused)
|
|
srand(1);
|
|
size_t total_size_used = 0;
|
|
while(total_size_used < TEST_ALLOC_TOTAL)
|
|
{
|
|
size_t size = rand(1, TEST_ALLOC_TOTAL/16);
|
|
total_size_used += size;
|
|
void* p;
|
|
// until successful alloc:
|
|
for(;;)
|
|
{
|
|
p = file_cache_allocator_alloc(size);
|
|
if(p)
|
|
break;
|
|
// out of room - remove a previous allocation
|
|
// .. choose one at random
|
|
size_t chosen_idx = (size_t)rand(0, (size_t)allocations.size());
|
|
AllocMap::iterator it = allocations.begin();
|
|
for(; chosen_idx != 0; chosen_idx--)
|
|
++it;
|
|
file_cache_allocator_free(it->first, it->second);
|
|
allocations.erase(it);
|
|
}
|
|
|
|
// must not already have been allocated
|
|
TS_ASSERT_EQUALS(allocations.find(p), allocations.end());
|
|
allocations[p] = size;
|
|
}
|
|
|
|
// reset to virginal state
|
|
// note: even though everything has now been freed, this is
|
|
// necessary since the freelists may be a bit scattered already.
|
|
file_cache_allocator_reset();
|
|
}
|
|
};
|