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https://github.com/Rockbox/rockbox.git
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3b7dafb117
This commit adds new files written exclusively for the 3ds port. Additional comments: 1. Plugins works, but will be enabled in future commits. 2. The port has only been tested on the New 3DS. 3. Not all features of rockbox have been tested so there may be bugs or non-functional features. 4. There is a known issue where a random crash can occur when exiting the app. Change-Id: I122d0bea9aa604e04fca45ba8287cf79e6110769
99 lines
2.4 KiB
C
99 lines
2.4 KiB
C
#ifndef _BFILE_INTERNAL_H_
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#define _BFILE_INTERNAL_H_
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#include <stdlib.h>
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#include <stdio.h>
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#include <stdint.h>
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#include <stdbool.h>
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#include <sys/stat.h>
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#include <math.h>
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#include <3ds/gfx.h>
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#include <3ds/svc.h>
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#include <3ds/types.h>
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#include <3ds/thread.h>
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#include <3ds/result.h>
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#include <3ds/services/fs.h>
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#include <3ds/synchronization.h>
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/* #define MALLOC_DEBUG
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#include "rmalloc/rmalloc.h" */
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#include "cslice.h"
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#include "cmap.h"
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#define nil NULL
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/* in go functions can return two values */
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#define two_type_value(type1, type2, name1, name2, type_name) \
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typedef struct { \
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type1 name1; \
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type2 name2; \
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} type_name##_t;
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/* single mutex implementation */
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#define sync_Mutex LightLock
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static inline void sync_MutexInit(sync_Mutex* m) {
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LightLock_Init(m);
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}
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/* mutex unlock */
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static inline void sync_MutexLock(sync_Mutex* m) {
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LightLock_Lock(m);
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}
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/* mutex lock */
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static inline void sync_MutexUnlock(sync_Mutex* m) {
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LightLock_Unlock(m);
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}
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/* read_write mutex implementation */
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typedef struct {
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sync_Mutex shared;
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CondVar reader_q;
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CondVar writer_q;
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int active_readers;
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int active_writers;
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int waiting_writers;
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} sync_RWMutex;
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void sync_RWMutexInit(sync_RWMutex *m);
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void sync_RWMutexRLock(sync_RWMutex *m);
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void sync_RWMutexRUnlock(sync_RWMutex *m);
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void sync_RWMutexLock(sync_RWMutex *m);
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void sync_RWMutexUnlock(sync_RWMutex *m);
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/* declare a two type value with name 'n_err_t' */
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two_type_value(int, const char*, n, err, int_error);
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two_type_value(struct stat, const char*, fi, err, stat_error);
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typedef const char* file_error_t;
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typedef struct page {
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s64 num;
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struct page* prev;
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struct page* next;
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u8* data;
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} page;
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/* the two map types used by this library */
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cmap_declare(page, s64, struct page*);
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cmap_declare(bool, s64, bool);
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typedef struct shard {
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sync_Mutex mu;
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cmap(page) pages;
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cmap(bool) dirty;
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struct page* head;
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struct page* tail;
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} shard;
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typedef struct Pager {
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Handle file;
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s64 pgsize;
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s64 pgmax;
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/* sync_RWMutex mu; */
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s64 size;
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cslice(shard) shards;
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} Pager;
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#endif /* _BFILE_INTERNAL_H_ */
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