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/*! \file ram_fs.hpp
* \brief ram_fs.hpp
* \author Simon Gog
*/
#ifndef INCLUDED_SDSL_RAM_FS
#define INCLUDED_SDSL_RAM_FS
#include "uintx_t.hpp"
#include <string>
#include <map>
#include <vector>
#include <mutex>
namespace sdsl
{
class ram_fs_initializer
{
public:
ram_fs_initializer();
~ram_fs_initializer();
};
} // end namespace sdsl
static sdsl::ram_fs_initializer init_ram_fs;
namespace sdsl
{
//! ram_fs is a simple store for RAM-files.
/*!
* Simple key-value store which maps file names
* (strings) to file content (content_type).
*/
class ram_fs
{
public:
typedef std::vector<char> content_type;
private:
friend class ram_fs_initializer;
typedef std::map<std::string, content_type> mss_type;
static mss_type m_map;
static std::recursive_mutex m_rlock;
public:
//! Default construct
ram_fs();
static void store(const std::string& name, content_type data);
//! Check if the file exists
static bool exists(const std::string& name);
//! Get the file size
static size_t file_size(const std::string& name);
//! Get the content
static content_type& content(const std::string& name);
//! Remove the file with key `name`
static int remove(const std::string& name);
//! Rename the file. Change key `old_filename` into `new_filename`.
static int rename(const std::string old_filename, const std::string new_filename);
};
//! Determines if the given file is a RAM-file.
bool is_ram_file(const std::string& file);
//! Returns the corresponding RAM-file name for file.
std::string ram_file_name(const std::string& file);
//! Returns for a RAM-file the corresponding disk file name
std::string disk_file_name(const std::string& file);
//! Remove a file.
int remove(const std::string& file);
//! Rename a file
int rename(const std::string& old_filename, const std::string& new_filename);
} // end namespace sdsl
#endif
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