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zip_fsys.h
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zip_fsys.h
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//============================================================================
// Mini Spin-X Library
//
// Copyright (c) 2024, Jarkko Lempiainen
// All rights reserved.
//============================================================================
#ifndef PFC_CORE_ZIP_FSYS_H
#define PFC_CORE_ZIP_FSYS_H
//----------------------------------------------------------------------------
//============================================================================
// interface
//============================================================================
// external
#include "fsys.h"
#include "sxp_src/core/containers.h"
namespace pfc
{
// new
class zip_file_system;
void write_zip(bin_output_stream_base&, const void *data_, usize_t data_size_, const char *filename_);
//----------------------------------------------------------------------------
//============================================================================
// zip_file_system
//============================================================================
class zip_file_system: public file_system_base
{
public:
// construction
zip_file_system(file_system_base&, const char *zip_filename_, bool set_active_=false);
zip_file_system(file_system_base&, const char *const*zip_filenames_, unsigned num_zip_filenames_, bool set_active_=false);
//--------------------------------------------------------------------------
// generic operations
virtual iterator find_first(e_fsys_find, const char *dirname_, const char *path_=0) const;
//--------------------------------------------------------------------------
// file operations
virtual bool exists(const char *filename_, const char *path_=0) const;
virtual usize_t file_size(const char *filename_, const char *path_=0) const;
virtual bool is_writable(const char *filename_, const char *path_=0) const;
virtual file_time mod_time(const char *filename_, const char *path_=0) const;
virtual owner_ptr<bin_input_stream_base> open_read(const char *filename_, const char *path_=0, e_file_open_check=fopencheck_warn) const;
virtual owner_ptr<bin_output_stream_base> open_write(const char *filename_, const char *path_=0, e_file_open_write_mode=fopenwritemode_clear, uint64_t fpos_=uint64_t(-1), bool makedir_=true, e_file_open_check=fopencheck_warn);
virtual bool delete_file(const char *filename_, const char *path_=0);
virtual bool rename_file(const char *filename_, const char *new_filename_, const char *path_=0, bool overwrite_existing_=false);
virtual void touch_file(const char *filename_, const char *path_=0);
//--------------------------------------------------------------------------
// directory operations
virtual void set_directory(const char *dirname_);
virtual bool make_directory(const char *dirname_, const char *path_=0);
virtual bool delete_directory(const char *dirname_, const char *path_=0, bool delete_content_=false);
virtual bool rename_directory(const char *dirname_, const char *new_dirname_, const char *path_=0);
virtual owner_ptr<directory_monitor_base> create_directory_monitor(const char *dirname_, bool notify_subdirs_=false) const;
//--------------------------------------------------------------------------
private:
class input_stream;
class output_stream;
class iterator_impl;
zip_file_system(const zip_file_system&); // not implemented
void operator=(const zip_file_system&); // not implemented
void make_full_filename(char *buffer_, const char *path_, const char *filename_, unsigned buffer_size_) const;
void init_dictionary(const char *const*zip_filenames_, unsigned num_filenames_);
//--------------------------------------------------------------------------
//==========================================================================
// e_compression_type
//==========================================================================
enum e_compression_type
{
comp_none,
comp_deflated
};
//--------------------------------------------------------------------------
//==========================================================================
// zip_storage
//==========================================================================
struct zip_storage
{
const char *name;
unsigned num_files;
};
//--------------------------------------------------------------------------
//==========================================================================
// file_desc
//==========================================================================
struct file_desc
{
uint16_t zip_index;
uint16_t compression_type;
uint32_t data_location;
uint32_t compressed_size;
uint32_t uncompressed_size;
uint32_t msdos_time;
};
//--------------------------------------------------------------------------
typedef hash_map<str_id, file_desc> dictionary;
file_system_base &m_fsys;
array<zip_storage> m_zips;
dictionary m_dictionary;
array<char> m_filenames;
};
//----------------------------------------------------------------------------
//============================================================================
} // namespace pfc
#endif