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blt-gp
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allocator is still broken

thread
Brett 2024-07-16 14:13:23 -04:00
parent 2fcc8369db
commit 2ca69ae953
3 changed files with 108 additions and 39 deletions
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2
CMakeLists.txt
View File

@ -1,5 +1,5 @@
cmake_minimum_required(VERSION 3.25)
project(blt-gp VERSION 0.0.85)
project(blt-gp VERSION 0.0.86)
include(CTest)

77
examples/gp_test_1.cpp
View File

@ -279,28 +279,33 @@ float nyah(float a, int b, bool c)
return a + static_cast<float>(b) * c;
}
struct silly
struct bytes_16_struct
{
unsigned long bruh;
int nya;
friend std::ostream& operator<<(std::ostream& out, const silly& s)
friend std::ostream& operator<<(std::ostream& out, const bytes_16_struct& s)
{
out << "[" << s.bruh << " " << s.nya << "]";
return out;
}
};
struct large
struct bytes_256_struct
{
unsigned char data[256];
};
struct super_large
struct bytes_5129_struct
{
unsigned char data[5129];
};
struct bytes_4096_page_struct
{
unsigned char data[4096 - 32];
};
struct context
{
float x, y;
@ -330,8 +335,8 @@ int main()
{
constexpr blt::size_t MAX_ALIGNMENT = 8;
test();
std::cout << alignof(silly) << " " << sizeof(silly) << std::endl;
std::cout << alignof(super_large) << " " << sizeof(super_large) << " " << ((sizeof(super_large) + (MAX_ALIGNMENT - 1)) & ~(MAX_ALIGNMENT - 1))
std::cout << alignof(bytes_16_struct) << " " << sizeof(bytes_16_struct) << std::endl;
std::cout << alignof(bytes_5129_struct) << " " << sizeof(bytes_5129_struct) << " " << ((sizeof(bytes_5129_struct) + (MAX_ALIGNMENT - 1)) & ~(MAX_ALIGNMENT - 1))
<< std::endl;
std::cout << ((sizeof(char) + (MAX_ALIGNMENT - 1)) & ~(MAX_ALIGNMENT - 1)) << " "
<< ((sizeof(short) + (MAX_ALIGNMENT - 1)) & ~(MAX_ALIGNMENT - 1)) << std::endl;
@ -359,33 +364,53 @@ int main()
std::cout << std::endl;
std::cout << "Is empty? " << alloc.empty() << std::endl;
alloc.push(silly{});
alloc.push(large{});
alloc.push(super_large{});
alloc.push(silly{25, 24});
alloc.push(large{});
alloc.push(bytes_4096_page_struct{});
std::cout << "Used bytes: " << alloc.size() << std::endl;
alloc.push(bytes_16_struct{});
std::cout << "Used bytes: " << alloc.size() << std::endl;
alloc.pop<bytes_16_struct>();
std::cout << "Used bytes: " << alloc.size() << std::endl;
alloc.pop<bytes_4096_page_struct>();
std::cout << "Used bytes: " << alloc.size() << std::endl;
std::cout << std::endl;
std::cout << "Is empty? " << alloc.empty() << std::endl;
alloc.pop<large>();
std::cout << "Is empty? " << alloc.empty() << std::endl;
std::cout << alloc.pop<silly>() << std::endl;
std::cout << "Is empty? " << alloc.empty() << std::endl;
alloc.pop<super_large>();
std::cout << "Is empty? " << alloc.empty() << std::endl;
alloc.pop<large>();
std::cout << "Is empty? " << alloc.empty() << std::endl;
std::cout << alloc.pop<silly>() << std::endl;
std::cout << "Is empty? " << alloc.empty() << " " << alloc.size() << std::endl;
std::cout << std::endl;
alloc.push(bytes_16_struct{});
std::cout << "Used bytes: " << alloc.size() << std::endl;
alloc.push(bytes_256_struct{});
std::cout << "Used bytes: " << alloc.size() << std::endl;
alloc.push(bytes_5129_struct{});
std::cout << "Used bytes: " << alloc.size() << std::endl;
alloc.push(bytes_16_struct{25, 24});
std::cout << "Used bytes: " << alloc.size() << std::endl;
alloc.push(bytes_256_struct{});
std::cout << "Used bytes: " << alloc.size() << std::endl;
std::cout << std::endl;
std::cout << "Is empty? " << alloc.empty() << " " << alloc.size() << std::endl;
alloc.pop<bytes_256_struct>();
std::cout << "Is empty? " << alloc.empty() << " " << alloc.size() << std::endl;
std::cout << alloc.pop<bytes_16_struct>() << std::endl;
std::cout << "Is empty? " << alloc.empty() << " " << alloc.size() << std::endl;
alloc.pop<bytes_5129_struct>();
std::cout << "Is empty? " << alloc.empty() << " " << alloc.size() << std::endl;
alloc.pop<bytes_256_struct>();
std::cout << "Is empty? " << alloc.empty() << " " << alloc.size() << std::endl;
std::cout << alloc.pop<bytes_16_struct>() << std::endl;
std::cout << std::endl;
std::cout << "Is empty? " << alloc.empty() << " bytes left: " << alloc.bytes_in_head() << std::endl;
std::cout << std::endl;
alloc.push(silly{2, 5});
alloc.push(large{});
alloc.push(super_large{});
alloc.push(silly{80, 10});
alloc.push(large{});
alloc.push(bytes_16_struct{2, 5});
alloc.push(bytes_256_struct{});
alloc.push(bytes_5129_struct{});
alloc.push(bytes_16_struct{80, 10});
alloc.push(bytes_256_struct{});
alloc.push(50);
alloc.push(550.3f);
alloc.push(20.1230345);

64
include/blt/gp/stack.h
View File

@ -30,6 +30,7 @@
#include <memory>
#include <type_traits>
#include <cstring>
#include <iostream>
namespace blt::gp
{
@ -150,7 +151,36 @@ namespace blt::gp
blt::size_t total_used_bytes = 0;
blt::size_t total_remaining_bytes = 0;
blt::size_t total_no_meta_bytes = 0;
blt::size_t total_dealloc = 0;
blt::size_t total_dealloc_used = 0;
blt::size_t total_dealloc_remaining = 0;
blt::size_t total_dealloc_no_meta = 0;
blt::size_t blocks = 0;
friend std::ostream& operator<<(std::ostream& stream, const size_data_t& data)
{
stream << "[";
stream << data.total_used_bytes << "/";
stream << data.total_size_bytes << "(";
stream << (static_cast<double>(data.total_used_bytes) / static_cast<double>(data.total_size_bytes)) << "%), ";
stream << data.total_used_bytes << "/";
stream << data.total_no_meta_bytes << "(";
stream << (static_cast<double>(data.total_used_bytes) / static_cast<double>(data.total_no_meta_bytes)) << "%), (empty space: ";
stream << data.total_remaining_bytes << ") blocks: " << data.blocks << " || unallocated space: ";
stream << data.total_dealloc_used << "/";
stream << data.total_dealloc;
if (static_cast<double>(data.total_dealloc) > 0)
stream << "(" << (static_cast<double>(data.total_dealloc_used) / static_cast<double>(data.total_dealloc)) << "%)";
stream << ", ";
stream << data.total_dealloc_used << "/";
stream << data.total_dealloc_no_meta;
if (data.total_dealloc_no_meta > 0)
stream << "(" << (static_cast<double>(data.total_dealloc_used) / static_cast<double>(data.total_dealloc_no_meta)) << "%)";
stream << ", (empty space: " << data.total_dealloc_remaining << ")]";
return stream;
}
};
@ -178,11 +208,11 @@ namespace blt::gp
constexpr static auto TYPE_SIZE = aligned_size<NO_REF_T>();
if (head == nullptr)
throw std::runtime_error("Silly boi the stack is empty!");
if (head->used_bytes_in_block() < static_cast<blt::ptrdiff_t>(aligned_size<T>()))
throw std::runtime_error((std::string("Mismatched Types! Not enough space left in block! Bytes: ") += std::to_string(
head->used_bytes_in_block()) += " Size: " + std::to_string(sizeof(NO_REF_T))).c_str());
if (head->used_bytes_in_block() == 0)
move_back();
if (head->used_bytes_in_block() < static_cast<blt::ptrdiff_t>(aligned_size<NO_REF_T>()))
throw std::runtime_error((std::string("Mismatched Types! Not enough space left in block! Bytes: ") += std::to_string(
head->used_bytes_in_block()) += " Size: " + std::to_string(sizeof(NO_REF_T))).c_str());
// make copy
NO_REF_T t = *reinterpret_cast<NO_REF_T*>(head->metadata.offset - TYPE_SIZE);
// call destructor
@ -288,7 +318,8 @@ namespace blt::gp
{
blt::size_t offset = 0;
((from<NO_REF_T<Args>>(offset).~NO_REF_T<Args>(), offset += stack_allocator::aligned_size<NO_REF_T<Args>>()), ...);
((from < NO_REF_T < Args >> (offset).~NO_REF_T<Args>(), offset += stack_allocator::aligned_size<NO_REF_T < Args>>
()), ...);
}
[[nodiscard]] bool empty() const
@ -314,16 +345,29 @@ namespace blt::gp
[[nodiscard]] size_data_t size()
{
size_data_t size_data;
auto* next = head;
auto* prev = head;
while (prev != nullptr)
{
size_data.total_size_bytes += prev->metadata.size;
size_data.total_no_meta_bytes += prev->storage_size();
size_data.total_remaining_bytes += prev->remaining_bytes_in_block();
size_data.total_used_bytes += prev->used_bytes_in_block();
size_data.blocks++;
prev = prev->metadata.prev;
}
if (head != nullptr)
{
auto next = head->metadata.next;
while (next != nullptr)
{
size_data.total_size_bytes += next->metadata.size;
size_data.total_no_meta_bytes += next->storage_size();
size_data.total_remaining_bytes += next->remaining_bytes_in_block();
size_data.total_used_bytes += next->used_bytes_in_block();
size_data.total_dealloc += next->metadata.size;
size_data.total_dealloc_no_meta += next->storage_size();
size_data.total_dealloc_remaining += next->remaining_bytes_in_block();
size_data.total_dealloc_used += next->used_bytes_in_block();
size_data.blocks++;
next = next->metadata.next;
}
}
return size_data;
}
@ -436,7 +480,7 @@ namespace blt::gp
template<typename T>
void* allocate_bytes()
{
return allocate_bytes(sizeof(NO_REF_T<T>));
return allocate_bytes(sizeof(NO_REF_T < T > ));
}
void* allocate_bytes(blt::size_t size)