gplib/include/gp_config.hpp

#pragma once

#include <new>
#include <type_traits>

#include <cstddef>
#include <cstdint>
#include <cstdlib>

#ifdef GP_TESTS
	class static_mapper;
#else
namespace gp {
	class c_allocator;
}
#endif

namespace gp_config{
	namespace rendering {
		using default_type = float;
		constexpr default_type epsilon = 0.001;
#define GP_CONFIG__RENDERING__COLOR_T vec4
	}

	namespace limits {
		constexpr size_t max_processes = 4096;
		constexpr size_t max_fd_per_process = 128;
		constexpr size_t process_stack = 1024;
		constexpr size_t process_stack_align_to = 16;
		constexpr size_t stack_grow_upwards = false;
		#if __cpp_lib_hardware_interference_size >= 201603
			constexpr size_t hardware_constructive_interference_size = std::hardware_constructive_interference_size;
			constexpr size_t hardware_destructive_interference_size = std::hardware_destructive_interference_size;
		#else
			constexpr size_t hardware_constructive_interference_size = 128;
			constexpr size_t hardware_destructive_interference_size = 128;
		#endif
	}

	namespace memory_module{
		constexpr bool is_ok = true;
	}

	typedef uint32_t file_descriptor_t;

	constexpr bool has_exceptions = true;
	constexpr bool has_buffer_bounds = true;

	// Value of  8 is considered not cryptographically secure
	// Value of 12 offers a good compromise of performance and robustness
	// Value of 20 offers maximum robustness
	constexpr size_t arc4random_strength = 20;

	struct assert_failure{
		assert_failure(const char* reason)
		: what_str{reason}
		{}
		const char* what_str;
		const char* what() {return what_str;}
	};

	constexpr size_t assert_buffer_size = 0;
	constexpr auto assertion = [](bool pred, const char* reason) -> void{
		if constexpr (has_exceptions)
		if(!pred) throw assert_failure(reason);
	};
}

enum class gp_errorcodes : int {
	infinite_skipstone = 3000
};