#include <stdexcept>
#include <string>
+#include <msp/core/mspcore_api.h>
#include "buffered.h"
-#include "filtered.h"
#include "handle.h"
#include "seekable.h"
namespace Msp {
namespace IO {
-class file_not_found: public std::runtime_error
+class MSPCORE_API file_not_found: public std::runtime_error
{
public:
file_not_found(const std::string &fn): std::runtime_error(fn) { }
};
+class MSPCORE_API file_already_exists: public std::runtime_error
+{
+public:
+ file_already_exists(const std::string &fn): std::runtime_error(fn) { }
+};
+
/**
A class for reading and writing files.
Non-blocking mode is not supported on Win32.
*/
-class File: public Seekable
+class MSPCORE_API File: public Seekable
{
public:
enum CreateMode
{
C_NONE = 0,
C_CREATE = 1,
- C_TRUNCATE = 2
+ C_TRUNCATE = 2,
+ C_OVERWRITE = C_CREATE+C_TRUNCATE,
+ C_EXCLUSIVE = 4,
+ C_NEW = C_CREATE+C_EXCLUSIVE
};
private:
/** Creates a new file object and opens it. If the create flag is set and
write access is requested and the file does exist, it is created. Otherwise
a missing file is an error. */
- File(const std::string &, Mode = M_READ, CreateMode = CreateMode(C_CREATE+C_TRUNCATE));
- virtual ~File();
+ File(const std::string &, Mode = M_READ, CreateMode = C_OVERWRITE);
+private:
+ void platform_init(const std::string &, CreateMode);
+public:
+ ~File() override;
- void set_block(bool);
+ void set_block(bool) override;
+ void set_inherit(bool) override;
protected:
- virtual unsigned do_write(const char *, unsigned);
- virtual unsigned do_read(char *, unsigned);
+ std::size_t do_write(const char *, std::size_t) override;
+ std::size_t do_read(char *, std::size_t) override;
public:
- virtual void sync();
+ void sync();
+
+ SeekOffset seek(SeekOffset, SeekType) override;
+ SeekOffset tell() const override;
- virtual SeekOffset seek(SeekOffset, SeekType);
- virtual SeekOffset tell() const;
+ const Handle &get_handle(Mode) override;
};
inline File::CreateMode operator|(File::CreateMode m, File::CreateMode n)
inline File::CreateMode operator~(File::CreateMode m)
{ return File::CreateMode(~static_cast<int>(m)); }
-typedef Filtered<File, Buffered> BufferedFile;
+
+class MSPCORE_API BufferedFile: public Seekable
+{
+private:
+ File file;
+ Buffered buffer;
+ SeekOffset position;
+
+public:
+ BufferedFile(const std::string &, Mode = M_READ, File::CreateMode = File::C_OVERWRITE);
+
+ void set_block(bool) override;
+ void set_inherit(bool) override;
+
+protected:
+ std::size_t do_write(const char *, std::size_t) override;
+ std::size_t do_read(char *, std::size_t) override;
+public:
+ std::size_t put(char) override;
+
+ bool getline(std::string &) override;
+ int get() override;
+
+ const Handle &get_handle(Mode) override;
+
+ SeekOffset seek(SeekOffset, SeekType) override;
+ SeekOffset tell() const override { return position; }
+};
} // namespace IO
} // namespace Msp