forked from SerenityOS/serenity
-
Notifications
You must be signed in to change notification settings - Fork 0
/
MappedFile.h
33 lines (24 loc) 路 639 Bytes
/
MappedFile.h
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
#pragma once
#include <AK/Noncopyable.h>
#include <AK/StringView.h>
namespace AK {
class MappedFile {
AK_MAKE_NONCOPYABLE(MappedFile);
public:
MappedFile() {}
explicit MappedFile(const StringView& file_name);
MappedFile(MappedFile&&);
~MappedFile();
MappedFile& operator=(MappedFile&&);
bool is_valid() const { return m_map != (void*)-1; }
void unmap();
void* pointer() { return m_map; }
const void* pointer() const { return m_map; }
size_t size() const { return m_size; }
private:
size_t m_size { 0 };
int m_fd { -1 };
void* m_map { (void*)-1 };
};
}
using AK::MappedFile;