SkOSFile.h

/*
 * Copyright 2006 The Android Open Source Project
 *
 * Use of this source code is governed by a BSD-style license that can be
 * found in the LICENSE file.
 */


// TODO: add unittests for all these operations

#ifndef SkOSFile_DEFINED
#define SkOSFile_DEFINED

#include <stdio.h>

#include "SkString.h"

enum SkFILE_Flags {
    kRead_SkFILE_Flag   = 0x01,
    kWrite_SkFILE_Flag  = 0x02
};

#ifdef _WIN32
const static char SkPATH_SEPARATOR = '\\';
#else
const static char SkPATH_SEPARATOR = '/';
#endif

FILE* sk_fopen(const char path[], SkFILE_Flags);
void    sk_fclose(FILE*);

size_t  sk_fgetsize(FILE*);
bool    sk_frewind(FILE*);

size_t  sk_fread(void* buffer, size_t byteCount, FILE*);
size_t  sk_fwrite(const void* buffer, size_t byteCount, FILE*);

char*   sk_fgets(char* str, int size, FILE* f);

void    sk_fflush(FILE*);
void    sk_fsync(FILE*);

bool    sk_fseek(FILE*, size_t);
bool    sk_fmove(FILE*, long);
size_t  sk_ftell(FILE*);

void*   sk_fmmap(FILE* f, size_t* length);

void*   sk_fdmmap(int fd, size_t* length);

void    sk_fmunmap(const void* addr, size_t length);

bool    sk_fidentical(FILE* a, FILE* b);

int     sk_fileno(FILE* f);

bool    sk_exists(const char *path, SkFILE_Flags = (SkFILE_Flags)0);

// Returns true if a directory exists at this path.
bool    sk_isdir(const char *path);

// Have we reached the end of the file?
int sk_feof(FILE *);


// Create a new directory at this path; returns true if successful.
// If the directory already existed, this will return true.
// Description of the error, if any, will be written to stderr.
bool    sk_mkdir(const char* path);

class SkOSFile {
public:
    class Iter {
    public:
        Iter();
        Iter(const char path[], const char suffix[] = NULL);
        ~Iter();

        void reset(const char path[], const char suffix[] = NULL);
        bool next(SkString* name, bool getDir = false);

        static const size_t kStorageSize = 40;
    private:
        SkAlignedSStorage<kStorageSize> fSelf;
    };
};

class SkOSPath   {
public:
    static SkString Join(const char* rootPath, const char* relativePath);

    static SkString Basename(const char* fullPath);

    static SkString Dirname(const char* fullPath);
};

#endif