RASCSI/cpp/devices/disk_cache.h
Uwe Seimet 41bdcd4aed
Issues 1179 and 1182 (#1232)
* Update logging

* Remove duplicate code

* Update unit tests

* Clean up includes

* Merge ProtobufSerializer into protobuf_util namespace

* Precompile regex

* Add const

* Add Split() convenience method, update log level/ID parsing

* Move log.h to legacy folder

* Elimininate gotos

* Fixes for gcc 13

* Update compiler flags

* Update default folder handling

* Use references instead of pointers

* Move code for better encapsulation

* Move code

* Remove unused method argument

* Move device logger

* Remove redundant to_string

* Rename for consistency

* Update handling of protobuf pointers

* Simplify protobuf usage

* Memory handling update

* Add hasher
2023-10-15 08:38:15 +02:00

66 lines
1.7 KiB
C++
Raw Permalink Blame History

This file contains ambiguous Unicode characters

This file contains Unicode characters that might be confused with other characters. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.

//---------------------------------------------------------------------------
//
// X68000 EMULATOR "XM6"
//
// Copyright (C) 2001-2006 (ytanaka@ipc-tokai.or.jp)
// Copyright (C) 2014-2020 GIMONS
//
// XM6i
// Copyright (C) 2010-2015 isaki@NetBSD.org
//
// Imported sava's Anex86/T98Next image and MO format support patch.
// Comments translated to english by akuker.
//
//---------------------------------------------------------------------------
#pragma once
#include <span>
#include <array>
#include <memory>
#include <string>
using namespace std;
class DiskCache
{
// Number of tracks to cache
static const int CACHE_MAX = 16;
public:
// Internal data definition
using cache_t = struct {
shared_ptr<DiskTrack> disktrk; // Disk Track
uint32_t serial; // Serial
};
DiskCache(const string&, int, uint32_t, off_t = 0);
~DiskCache() = default;
void SetRawMode(bool b) { cd_raw = b; } // CD-ROM raw mode setting
// Access
bool Save() const; // Save and release all
bool ReadSector(span<uint8_t>, uint32_t); // Sector Read
bool WriteSector(span<const uint8_t>, uint32_t); // Sector Write
private:
// Internal Management
shared_ptr<DiskTrack> Assign(int);
shared_ptr<DiskTrack> GetTrack(uint32_t);
bool Load(int index, int track, shared_ptr<DiskTrack>);
void UpdateSerialNumber();
// Internal data
array<cache_t, CACHE_MAX> cache = {}; // Cache management
uint32_t serial = 0; // Last serial number
string sec_path; // Path
int sec_size; // Sector Size (8=256, 9=512, 10=1024, 11=2048, 12=4096)
int sec_blocks; // Blocks per sector
bool cd_raw = false; // CD-ROM RAW mode
off_t imgoffset; // Offset to actual data
};