file.hpp

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#ifndef LIBFILEZILLA_FILE_HEADER
#define LIBFILEZILLA_FILE_HEADER
 
#include "libfilezilla.hpp"
 
#ifdef FZ_WINDOWS
#include "glue/windows.hpp"
#endif
 
#include <stdint.h>
 
namespace fz {
 
class FZ_PUBLIC_SYMBOL file final
{
public:
    enum mode {
        reading,
        writing
    };
 
    enum creation_flags {
        existing = 0x1,
 
        empty = 0x2,
 
        current_user_only = 0x4,
 
         current_user_and_admins_only = 0x8
    };
 
    file() = default;
    file(native_string const& f, mode m, creation_flags d = existing);
 
    ~file();
 
    file(file const&) = delete;
    file& operator=(file const&) = delete;
 
    file(file && op) noexcept;
    file& operator=(file && op) noexcept;
 
    bool opened() const;
    explicit operator bool() const { return opened(); }
 
    bool open(native_string const& f, mode m, creation_flags d = existing);
 
    void close();
 
    enum seek_mode {
        begin,
 
        current,
 
        end
    };
 
    int64_t size() const;
 
    int64_t seek(int64_t offset, seek_mode m);
 
    int64_t position() { return seek(0, current); }
 
    bool truncate();
 
    int64_t read(void *buf, int64_t count);
 
    int64_t write(void const* buf, int64_t count);
 
    bool fsync();
 
private:
#ifdef FZ_WINDOWS
    HANDLE hFile_{INVALID_HANDLE_VALUE};
#else
    int fd_{-1};
#endif
};
 
bool FZ_PUBLIC_SYMBOL remove_file(native_string const& name);
 
inline file::creation_flags operator|(file::creation_flags lhs, file::creation_flags rhs) {
    return static_cast<file::creation_flags>(static_cast<unsigned int>(lhs) | rhs);
}
 
}
#endif