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-rw-r--r--test/support/test_memory_resource.hpp356
1 files changed, 10 insertions, 346 deletions
diff --git a/test/support/test_memory_resource.hpp b/test/support/test_memory_resource.hpp
index e7b067cf631d..49dc1739a962 100644
--- a/test/support/test_memory_resource.hpp
+++ b/test/support/test_memory_resource.hpp
@@ -11,6 +11,7 @@
#define SUPPORT_TEST_MEMORY_RESOURCE_HPP
#include <experimental/memory_resource>
+#include <experimental/utility>
#include <memory>
#include <type_traits>
#include <cstddef>
@@ -19,354 +20,17 @@
#include <cstdint>
#include <cassert>
#include "test_macros.h"
-
-struct AllocController;
- // 'AllocController' is a concrete type that instruments and controls the
- // behavior of of test allocators.
-
-template <class T>
-class CountingAllocator;
- // 'CountingAllocator' is an basic implementation of the 'Allocator'
- // requirements that use the 'AllocController' interface.
-
-template <class T>
-class MinAlignAllocator;
- // 'MinAlignAllocator' is an instrumented test type which implements the
- // 'Allocator' requirements. 'MinAlignAllocator' ensures that it *never*
- // returns a pointer to over-aligned storage. For example
- // 'MinAlignPointer<char>{}.allocate(...)' will never a 2-byte aligned
- // pointer.
-
-template <class T>
-class NullAllocator;
- // 'NullAllocator' is an instrumented test type which implements the
- // 'Allocator' requirements except that 'allocator' and 'deallocate' are
- // nops.
-
-
-#define DISALLOW_COPY(Type) \
- Type(Type const&) = delete; \
- Type& operator=(Type const&) = delete
-
-constexpr std::size_t MaxAlignV = alignof(std::max_align_t);
-
-struct TestException {};
-
-struct AllocController {
- int copy_constructed = 0;
- int move_constructed = 0;
-
- int alive = 0;
- int alloc_count = 0;
- int dealloc_count = 0;
- int is_equal_count = 0;
-
- std::size_t alive_size;
- std::size_t allocated_size;
- std::size_t deallocated_size;
-
- std::size_t last_size = 0;
- std::size_t last_align = 0;
- void * last_pointer = 0;
-
- std::size_t last_alloc_size = 0;
- std::size_t last_alloc_align = 0;
- void * last_alloc_pointer = nullptr;
-
- std::size_t last_dealloc_size = 0;
- std::size_t last_dealloc_align = 0;
- void * last_dealloc_pointer = nullptr;
-
- bool throw_on_alloc = false;
-
- AllocController() = default;
-
- void countAlloc(void* p, size_t s, size_t a) {
- ++alive;
- ++alloc_count;
- alive_size += s;
- allocated_size += s;
- last_pointer = last_alloc_pointer = p;
- last_size = last_alloc_size = s;
- last_align = last_alloc_align = a;
- }
-
- void countDealloc(void* p, size_t s, size_t a) {
- --alive;
- ++dealloc_count;
- alive_size -= s;
- deallocated_size += s;
- last_pointer = last_dealloc_pointer = p;
- last_size = last_dealloc_size = s;
- last_align = last_dealloc_align = a;
- }
-
- void reset() { std::memset(this, 0, sizeof(*this)); }
-
-public:
- bool checkAlloc(void* p, size_t s, size_t a) const {
- return p == last_alloc_pointer &&
- s == last_alloc_size &&
- a == last_alloc_align;
- }
-
- bool checkAlloc(void* p, size_t s) const {
- return p == last_alloc_pointer &&
- s == last_alloc_size;
- }
-
- bool checkAllocAtLeast(void* p, size_t s, size_t a) const {
- return p == last_alloc_pointer &&
- s <= last_alloc_size &&
- a <= last_alloc_align;
- }
-
- bool checkAllocAtLeast(void* p, size_t s) const {
- return p == last_alloc_pointer &&
- s <= last_alloc_size;
- }
-
- bool checkDealloc(void* p, size_t s, size_t a) const {
- return p == last_dealloc_pointer &&
- s == last_dealloc_size &&
- a == last_dealloc_align;
- }
-
- bool checkDealloc(void* p, size_t s) const {
- return p == last_dealloc_pointer &&
- s == last_dealloc_size;
- }
-
- bool checkDeallocMatchesAlloc() const {
- return last_dealloc_pointer == last_alloc_pointer &&
- last_dealloc_size == last_alloc_size &&
- last_dealloc_align == last_alloc_align;
- }
-
- void countIsEqual() {
- ++is_equal_count;
- }
-
- bool checkIsEqualCalledEq(int n) const {
- return is_equal_count == n;
- }
-private:
- DISALLOW_COPY(AllocController);
+#include "controlled_allocators.hpp"
+#include "uses_alloc_types.hpp"
+
+// FIXME: This is a hack to allow uses_allocator_types.hpp to work with
+// erased_type. However we can't define that behavior directly in the header
+// because it con't include <experimental/memory_resource>
+template <>
+struct TransformErasedTypeAlloc<std::experimental::erased_type> {
+ using type = std::experimental::pmr::memory_resource*;
};
-template <class T>
-class CountingAllocator
-{
-public:
- typedef T value_type;
- typedef T* pointer;
- CountingAllocator() = delete;
- explicit CountingAllocator(AllocController& PP) : P(&PP) {}
-
- CountingAllocator(CountingAllocator const& other) : P(other.P) {
- P->copy_constructed += 1;
- }
-
- CountingAllocator(CountingAllocator&& other) : P(other.P) {
- P->move_constructed += 1;
- }
-
- template <class U>
- CountingAllocator(CountingAllocator<U> const& other) TEST_NOEXCEPT : P(other.P) {
- P->copy_constructed += 1;
- }
-
- template <class U>
- CountingAllocator(CountingAllocator<U>&& other) TEST_NOEXCEPT : P(other.P) {
- P->move_constructed += 1;
- }
-
- T* allocate(std::size_t n)
- {
- void* ret = ::operator new(n*sizeof(T));
- P->countAlloc(ret, n*sizeof(T), alignof(T));
- return static_cast<T*>(ret);
- }
-
- void deallocate(T* p, std::size_t n)
- {
- void* vp = static_cast<void*>(p);
- P->countDealloc(vp, n*sizeof(T), alignof(T));
- ::operator delete(vp);
- }
-
- AllocController& getController() const { return *P; }
-
-private:
- template <class Tp> friend class CountingAllocator;
- AllocController *P;
-};
-
-template <class T, class U>
-inline bool operator==(CountingAllocator<T> const& x,
- CountingAllocator<U> const& y) {
- return &x.getController() == &y.getController();
-}
-
-template <class T, class U>
-inline bool operator!=(CountingAllocator<T> const& x,
- CountingAllocator<U> const& y) {
- return !(x == y);
-}
-
-template <class T>
-class MinAlignedAllocator
-{
-public:
- typedef T value_type;
- typedef T* pointer;
-
- MinAlignedAllocator() = delete;
-
- explicit MinAlignedAllocator(AllocController& R) : P(&R) {}
-
- MinAlignedAllocator(MinAlignedAllocator const& other) : P(other.P) {
- P->copy_constructed += 1;
- }
-
- MinAlignedAllocator(MinAlignedAllocator&& other) : P(other.P) {
- P->move_constructed += 1;
- }
-
- template <class U>
- MinAlignedAllocator(MinAlignedAllocator<U> const& other) TEST_NOEXCEPT : P(other.P) {
- P->copy_constructed += 1;
- }
-
- template <class U>
- MinAlignedAllocator(MinAlignedAllocator<U>&& other) TEST_NOEXCEPT : P(other.P) {
- P->move_constructed += 1;
- }
-
- T* allocate(std::size_t n) {
- char* aligned_ptr = (char*)::operator new(alloc_size(n*sizeof(T)));
- assert(is_max_aligned(aligned_ptr));
-
- char* unaligned_ptr = aligned_ptr + alignof(T);
- assert(is_min_aligned(unaligned_ptr));
-
- P->countAlloc(unaligned_ptr, n * sizeof(T), alignof(T));
-
- return ((T*)unaligned_ptr);
- }
-
- void deallocate(T* p, std::size_t n) {
- assert(is_min_aligned(p));
-
- char* aligned_ptr = ((char*)p) - alignof(T);
- assert(is_max_aligned(aligned_ptr));
-
- P->countDealloc(p, n*sizeof(T), alignof(T));
-
- return ::operator delete(static_cast<void*>(aligned_ptr));
- }
-
- AllocController& getController() const { return *P; }
-
-private:
- static const std::size_t BlockSize = alignof(std::max_align_t);
-
- static std::size_t alloc_size(std::size_t s) {
- std::size_t bytes = (s + BlockSize - 1) & ~(BlockSize - 1);
- bytes += BlockSize;
- assert(bytes % BlockSize == 0);
- return bytes;
- }
-
- static bool is_max_aligned(void* p) {
- return reinterpret_cast<std::uintptr_t>(p) % BlockSize == 0;
- }
-
- static bool is_min_aligned(void* p) {
- if (alignof(T) == BlockSize) {
- return is_max_aligned(p);
- } else {
- return reinterpret_cast<std::uintptr_t>(p) % BlockSize == alignof(T);
- }
- }
-
- template <class Tp> friend class MinAlignedAllocator;
- mutable AllocController *P;
-};
-
-
-template <class T, class U>
-inline bool operator==(MinAlignedAllocator<T> const& x,
- MinAlignedAllocator<U> const& y) {
- return &x.getController() == &y.getController();
-}
-
-template <class T, class U>
-inline bool operator!=(MinAlignedAllocator<T> const& x,
- MinAlignedAllocator<U> const& y) {
- return !(x == y);
-}
-
-template <class T>
-class NullAllocator
-{
-public:
- typedef T value_type;
- typedef T* pointer;
- NullAllocator() = delete;
- explicit NullAllocator(AllocController& PP) : P(&PP) {}
-
- NullAllocator(NullAllocator const& other) : P(other.P) {
- P->copy_constructed += 1;
- }
-
- NullAllocator(NullAllocator&& other) : P(other.P) {
- P->move_constructed += 1;
- }
-
- template <class U>
- NullAllocator(NullAllocator<U> const& other) TEST_NOEXCEPT : P(other.P) {
- P->copy_constructed += 1;
- }
-
- template <class U>
- NullAllocator(NullAllocator<U>&& other) TEST_NOEXCEPT : P(other.P) {
- P->move_constructed += 1;
- }
-
- T* allocate(std::size_t n)
- {
- P->countAlloc(nullptr, n*sizeof(T), alignof(T));
- return nullptr;
- }
-
- void deallocate(T* p, std::size_t n)
- {
- void* vp = static_cast<void*>(p);
- P->countDealloc(vp, n*sizeof(T), alignof(T));
- }
-
- AllocController& getController() const { return *P; }
-
-private:
- template <class Tp> friend class NullAllocator;
- AllocController *P;
-};
-
-template <class T, class U>
-inline bool operator==(NullAllocator<T> const& x,
- NullAllocator<U> const& y) {
- return &x.getController() == &y.getController();
-}
-
-template <class T, class U>
-inline bool operator!=(NullAllocator<T> const& x,
- NullAllocator<U> const& y) {
- return !(x == y);
-}
-
-
-
template <class ProviderT, int = 0>
class TestResourceImp : public std::experimental::pmr::memory_resource
{
generated by cgit v1.2.3 (git 2.25.1) at 2025-10-10 20:34:42 +0000