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144 lines
3.1 KiB
C++
144 lines
3.1 KiB
C++
#pragma once
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enum class fsm : u32 // file seek mode
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{
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begin,
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cur,
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end,
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};
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namespace fom // file open mode
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{
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enum : u32
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{
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read = 1 << 0,
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write = 1 << 1,
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append = 1 << 2,
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create = 1 << 3,
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trunc = 1 << 4,
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excl = 1 << 5,
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};
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};
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enum class fse : u32 // filesystem (file or dir) error
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{
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ok, // no error
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invalid_arguments,
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};
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enum : u32 // obsolete flags
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{
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o_read = fom::read,
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o_write = fom::write,
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o_append = fom::append,
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o_create = fom::create,
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o_trunc = fom::trunc,
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o_excl = fom::excl,
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};
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namespace fs
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{
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thread_local extern fse g_tls_error;
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struct stat_t
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{
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bool is_directory;
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bool is_writable;
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u64 size;
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s64 atime;
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s64 mtime;
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s64 ctime;
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};
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bool stat(const std::string& path, stat_t& info);
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bool exists(const std::string& path);
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bool is_file(const std::string& file);
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bool is_dir(const std::string& dir);
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bool remove_dir(const std::string& dir);
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bool create_dir(const std::string& dir);
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bool create_path(const std::string& path);
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bool rename(const std::string& from, const std::string& to);
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bool copy_file(const std::string& from, const std::string& to, bool overwrite);
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bool remove_file(const std::string& file);
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bool truncate_file(const std::string& file, u64 length);
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struct file final
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{
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using handle_type = std::intptr_t;
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static const handle_type null = -1;
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private:
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handle_type m_fd = null;
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public:
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file() = default;
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~file();
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explicit file(const std::string& filename, u32 mode = fom::read) { open(filename, mode); }
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file(const file&) = delete;
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file(file&&) = delete; // possibly TODO
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file& operator =(const file&) = delete;
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file& operator =(file&&) = delete; // possibly TODO
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operator bool() const { return m_fd != null; }
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void import(handle_type fd) { this->~file(); m_fd = fd; }
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bool open(const std::string& filename, u32 mode = fom::read);
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bool is_opened() const { return m_fd != null; }
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bool trunc(u64 size) const; // change file size (possibly appending zero bytes)
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bool stat(stat_t& info) const; // get file info
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bool close();
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u64 read(void* buffer, u64 count) const;
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u64 write(const void* buffer, u64 count) const;
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u64 seek(s64 offset, fsm seek_mode = fsm::begin) const;
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u64 size() const;
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};
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struct dir final
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{
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#ifdef _WIN32
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using handle_type = intptr_t;
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using name_type = std::unique_ptr<wchar_t[]>;
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static const handle_type null = -1;
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#else
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using handle_type = intptr_t;
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using name_type = std::unique_ptr<char[]>;
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static const handle_type null = 0;
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#endif
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private:
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handle_type m_dd = null;
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name_type m_path;
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public:
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dir() = default;
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~dir();
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explicit dir(const std::string& dirname) { open(dirname); }
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dir(const dir&) = delete;
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dir(dir&&) = delete; // possibly TODO
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dir& operator =(const dir&) = delete;
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dir& operator =(dir&&) = delete; // possibly TODO
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operator bool() const { return m_path.operator bool(); }
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void import(handle_type dd, const std::string& path);
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bool open(const std::string& dirname);
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bool is_opened() const { return *this; }
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bool close();
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bool get_first(std::string& name, stat_t& info);
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//bool get_first(std::string& name);
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bool get_next(std::string& name, stat_t& info);
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//bool get_next(std::string& name);
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};
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}
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