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/*
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
 *
 * Copyright 2022 Olaf Wintermann. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 *   1. Redistributions of source code must retain the above copyright
 *      notice, this list of conditions and the following disclaimer.
 *
 *   2. Redistributions in binary form must reproduce the above copyright
 *      notice, this list of conditions and the following disclaimer in the
 *      documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 */

#include "vfs.h"

static VFS pg_vfs_class = {
    pg_vfs_open,
    pg_vfs_stat,
    pg_vfs_fstat,
    pg_vfs_opendir,
    pg_vfs_fdopendir,
    pg_vfs_mkdir,
    pg_vfs_unlink,
    pg_vfs_rmdir
};

static VFS_IO pg_vfs_io_class = {
    pg_vfs_io_read,
    pg_vfs_io_write,
    pg_vfs_io_pread,
    pg_vfs_io_pwrite,
    pg_vfs_io_seek,
    pg_vfs_io_close,
    NULL, // no pg aio implementation yet
    NULL
};

static VFS_DIRIO pg_vfs_dirio_class = {
    pg_vfs_dirio_readdir,
    pg_vfs_dirio_close
};

/* -------------------------- VFS functions -------------------------- */

SYS_FILE pg_vfs_open(VFSContext *ctx, const char *path, int oflags) {
    
}

int pg_vfs_stat(VFSContext *ctx, const char *path, struct stat *buf) {
    
}

int pg_vfs_fstat(VFSContext *ctx, SYS_FILE fd, struct stat *buf) {
    
}

VFS_DIR pg_vfs_opendir(VFSContext *ctx, const char *path) {
    
}

VFS_DIR pg_vfs_fdopendir(VFSContext *ctx, SYS_FILE fd) {
    
}

int pg_vfs_mkdir(VFSContext *ctx, const char *path) {
    
}

int pg_vfs_unlink(VFSContext *ctx, const char *path) {
    
}

int pg_vfs_rmdir(VFSContext *Ctx, const char *path) {
    
}


/* -------------------------- VFS_IO functions -------------------------- */

ssize_t pg_vfs_io_read(SYS_FILE fd, void *buf, size_t nbyte) {
    
}

ssize_t pg_vfs_io_write(SYS_FILE fd, const void *buf, size_t nbyte) {
    
}

ssize_t pg_vfs_io_pread(SYS_FILE fd, void *buf, size_t nbyte, off_t offset) {
    
}

ssize_t pg_vfs_io_pwrite(SYS_FILE fd, const void *buf, size_t nbyte, off_t offset) {
    
}

off_t pg_vfs_io_seek(SYS_FILE fd, off_t offset, int whence) {
    
}

void pg_vfs_io_close(SYS_FILE fd) {
    
}


/* -------------------------- VFS_DIRIO functions -------------------------- */

int pg_vfs_dirio_readdir(VFS_DIR dir, VFS_ENTRY *entry, int getstat) {
    
}

void pg_vfs_dirio_close(VFS_DIR dir) {
    
}