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File.h
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File.h
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#pragma once
enum file_seek_mode : u32
{
from_begin,
from_cur,
from_end,
};
enum file_open_mode : u32
{
o_read = 1 << 0,
o_write = 1 << 1,
o_append = 1 << 2,
o_create = 1 << 3,
o_trunc = 1 << 4,
o_excl = 1 << 5,
};
namespace fs
{
struct stat_t
{
bool is_directory;
bool is_writable;
u64 size;
time_t atime;
time_t mtime;
time_t ctime;
};
bool stat(const std::string& path, stat_t& info);
bool exists(const std::string& path);
bool is_file(const std::string& file);
bool is_dir(const std::string& dir);
bool remove_dir(const std::string& dir);
bool create_dir(const std::string& dir);
bool create_path(const std::string& path);
bool rename(const std::string& from, const std::string& to);
bool copy_file(const std::string& from, const std::string& to, bool overwrite);
bool remove_file(const std::string& file);
bool truncate_file(const std::string& file, u64 length);
struct file final
{
using handle_type = intptr_t;
static const handle_type null = -1;
private:
handle_type m_fd = null;
public:
file() = default;
~file();
explicit file(const std::string& filename, u32 mode = o_read) { open(filename, mode); }
file(const file&) = delete;
file(file&&) = delete; // possibly TODO
file& operator =(const file&) = delete;
file& operator =(file&&) = delete; // possibly TODO
operator bool() const { return m_fd != null; }
void import(handle_type fd) { this->~file(); m_fd = fd; }
bool open(const std::string& filename, u32 mode = o_read);
bool is_opened() const { return m_fd != null; }
bool trunc(u64 size) const; // change file size (possibly appending zero bytes)
bool stat(stat_t& info) const; // get file info
bool close();
u64 read(void* buffer, u64 count) const;
u64 write(const void* buffer, u64 count) const;
u64 seek(u64 offset, u32 mode = from_begin) const;
u64 size() const;
};
struct dir final
{
#ifdef _WIN32
using handle_type = intptr_t;
using name_type = std::unique_ptr<wchar_t[]>;
static const handle_type null = -1;
#else
using handle_type = intptr_t;
using name_type = std::unique_ptr<char[]>;
static const handle_type null = 0;
#endif
private:
handle_type m_dd = null;
name_type m_path;
public:
dir() = default;
~dir();
explicit dir(const std::string& dirname) { open(dirname); }
dir(const dir&) = delete;
dir(dir&&) = delete; // possibly TODO
dir& operator =(const dir&) = delete;
dir& operator =(dir&&) = delete; // possibly TODO
operator bool() const { return m_path.operator bool(); }
void import(handle_type dd, const std::string& path);
bool open(const std::string& dirname);
bool is_opened() const { return *this; }
bool close();
bool get_first(std::string& name, stat_t& info);
//bool get_first(std::string& name);
bool get_next(std::string& name, stat_t& info);
//bool get_next(std::string& name);
};
}