Differential D5341 Diff 16559 src/test/allocator_tests.cpp

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src/test/allocator_tests.cpp

Show First 20 Lines • Show All 108 Lines • ▼ Show 20 Lines	#endif
for (int x = 0; x < 2048; ++x) {		for (int x = 0; x < 2048; ++x) {
b.free(addr[((x * 23) % 2048) ^ 242]);		b.free(addr[((x * 23) % 2048) ^ 242]);
}		}
addr.clear();		addr.clear();

// Go entirely wild: free and alloc interleaved, generate targets and sizes		// Go entirely wild: free and alloc interleaved, generate targets and sizes
// using pseudo-randomness.		// using pseudo-randomness.
for (int x = 0; x < 2048; ++x) {		for (int x = 0; x < 2048; ++x) {
addr.push_back(0);		addr.push_back(nullptr);
}		}
uint32_t s = 0x12345678;		uint32_t s = 0x12345678;
for (int x = 0; x < 5000; ++x) {		for (int x = 0; x < 5000; ++x) {
int idx = s & (addr.size() - 1);		int idx = s & (addr.size() - 1);
if (s & 0x80000000) {		if (s & 0x80000000) {
b.free(addr[idx]);		b.free(addr[idx]);
addr[idx] = 0;		addr[idx] = nullptr;
} else if (!addr[idx]) {		} else if (!addr[idx]) {
addr[idx] = b.alloc((s >> 16) & 2047);		addr[idx] = b.alloc((s >> 16) & 2047);
}		}
bool lsb = s & 1;		bool lsb = s & 1;
s >>= 1;		s >>= 1;
// LFSR period 0xf7ffffe0		// LFSR period 0xf7ffffe0
if (lsb) {		if (lsb) {
s ^= 0xf00f00f0;		s ^= 0xf00f00f0;
Show All 21 Lines	void AllocateLocked(size_t len, bool lockingSuccess) override {
if (lockedcount > 0) {		if (lockedcount > 0) {
--lockedcount;		--lockedcount;
*lockingSuccess = true;		*lockingSuccess = true;
}		}

// Fake address, do not actually use this memory		// Fake address, do not actually use this memory
return reinterpret_cast<void *>(0x08000000 + (count << 24));		return reinterpret_cast<void *>(0x08000000 + (count << 24));
}		}
return 0;		return nullptr;
}		}
void FreeLocked(void *addr, size_t len) override {}		void FreeLocked(void *addr, size_t len) override {}
size_t GetLimit() override { return std::numeric_limits<size_t>::max(); }		size_t GetLimit() override { return std::numeric_limits<size_t>::max(); }

private:		private:
int count;		int count;
int lockedcount;		int lockedcount;
};		};
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