#pragma once
#include <cstdint>
#include <memory>
#include <vector>
#include <cstdio>
struct llama_file;
struct llama_mmap;
struct llama_mlock;
using llama_files = std::vector<std::unique_ptr<llama_file>>;
using llama_mmaps = std::vector<std::unique_ptr<llama_mmap>>;
using llama_mlocks = std::vector<std::unique_ptr<llama_mlock>>;
struct llama_file {
llama_file(const char * fname, const char * mode, bool use_direct_io = false);
llama_file(FILE * file);
~llama_file();
size_t tell() const;
size_t size() const;
int file_id() const; // fileno overload
void seek(size_t offset, int whence) const;
void read_raw(void * ptr, size_t len);
void read_raw_unsafe(void * ptr, size_t len);
void read_aligned_chunk(void * dest, size_t size);
uint32_t read_u32();
void write_raw(const void * ptr, size_t len) const;
void write_u32(uint32_t val) const;
size_t read_alignment() const;
bool has_direct_io() const;
private:
struct impl;
std::unique_ptr<impl> pimpl;
};
struct llama_mmap {
llama_mmap(const llama_mmap &) = delete;
llama_mmap(struct llama_file * file, size_t prefetch = (size_t) -1, bool numa = false);
~llama_mmap();
size_t size() const;
void * addr() const;
void unmap_fragment(size_t first, size_t last);
static const bool SUPPORTED;
private:
struct impl;
std::unique_ptr<impl> pimpl;
};
struct llama_mlock {
llama_mlock();
~llama_mlock();
void init(void * ptr);
void grow_to(size_t target_size);
static const bool SUPPORTED;
private:
struct impl;
std::unique_ptr<impl> pimpl;
};
size_t llama_path_max();