File size: 1,409 Bytes
a1a4268
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
#pragma once

#include <memory>
#include <vector>

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);
    ~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) const;
    uint32_t read_u32() const;

    void write_raw(const void * ptr, size_t len) const;
    void write_u32(uint32_t val) 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();