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Improved ThreadAlloc::get API

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Made the API so that get always returns an initialised Alloc*.  Added
new fast path that doesn't perform checking, but can lead to very slow
behaviour if called and reused.
This commit is contained in:
Matthew Parkinson
2019-07-15 15:02:47 +01:00
parent 4ce371f936
commit df1896d55f
6 changed files with 44 additions and 21 deletions
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16
src/test/func/memory/memory.cc
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@@ -7,7 +7,7 @@ using namespace snmalloc;
void test_alloc_dealloc_64k()
{
auto& alloc = ThreadAlloc::get();
auto alloc = ThreadAlloc::get();
constexpr size_t count = 1 << 12;
constexpr size_t outer_count = 12;
@@ -39,7 +39,7 @@ void test_alloc_dealloc_64k()
void test_random_allocation()
{
auto& alloc = ThreadAlloc::get();
auto alloc = ThreadAlloc::get();
std::unordered_set<void*> allocated;
constexpr size_t count = 10000;
@@ -91,7 +91,7 @@ void test_random_allocation()
void test_calloc()
{
auto& alloc = ThreadAlloc::get();
auto alloc = ThreadAlloc::get();
for (size_t size = 16; size <= (1 << 24); size <<= 1)
{
@@ -162,7 +162,7 @@ void test_double_alloc()
void test_external_pointer()
{
// Malloc does not have an external pointer querying mechanism.
auto& alloc = ThreadAlloc::get();
auto alloc = ThreadAlloc::get();
for (uint8_t sc = 0; sc < NUM_SIZECLASSES; sc++)
{
@@ -208,7 +208,7 @@ void test_external_pointer_large()
{
xoroshiro::p128r64 r;
auto& alloc = ThreadAlloc::get();
auto alloc = ThreadAlloc::get();
constexpr size_t count_log = snmalloc::bits::is64() ? 5 : 3;
constexpr size_t count = 1 << count_log;
@@ -244,7 +244,7 @@ void test_external_pointer_large()
void test_external_pointer_dealloc_bug()
{
auto& alloc = ThreadAlloc::get();
auto alloc = ThreadAlloc::get();
constexpr size_t count = (SUPERSLAB_SIZE / SLAB_SIZE) * 2;
void* allocs[count];
@@ -268,7 +268,7 @@ void test_external_pointer_dealloc_bug()
void test_alloc_16M()
{
auto& alloc = ThreadAlloc::get();
auto alloc = ThreadAlloc::get();
// sizes >= 16M use large_alloc
const size_t size = 16'000'000;
@@ -279,7 +279,7 @@ void test_alloc_16M()
void test_calloc_16M()
{
auto& alloc = ThreadAlloc::get();
auto alloc = ThreadAlloc::get();
// sizes >= 16M use large_alloc
const size_t size = 16'000'000;