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#ifndef _SVC_FILEREAD_H
#define _SVC_FILEREAD_H
#include <bfc/dispatch.h>
#include <bfc/platform/types.h>
#include <api/service/services.h>
#include <stdint.h>
namespace SvcFileReader
{
enum {
READ = 1,
WRITE = 2,
APPEND = 4,
PLUS = 8,
BINARY = 16,
TEXT = 32,
};
};
class api_readercallback;
class NOVTABLE svc_fileReader : public Dispatchable
{
public:
static FOURCC getServiceType() { return WaSvc::FILEREADER; }
int isMine(const wchar_t *filename, int mode = SvcFileReader::READ); //don't really open. returns -1 if "don't know until I open it"
int open(const wchar_t *filename, int mode = SvcFileReader::READ);
size_t read(int8_t *buffer, size_t length);
size_t write(const int8_t *buffer, size_t length);
void close(); // safe to call even when not open
int canSetEOF();
/**
Asks the file reader to change the file length to newlen. Will fail if file
was not opened for writing.
@ret 1 on success, 0 on failure, -1 if operation is unsupported by this reader.
*/
int setEOF(uint64_t newlen);
void abort();
uint64_t getLength();
uint64_t getPos();
int canSeek();
int seek(uint64_t position);
uint64_t bytesAvailable(uint64_t requested);
int hasHeaders();
const char *getHeader(const char *header);
int exists(const wchar_t *filename);
int remove(const wchar_t *filename);
int removeUndoable(const wchar_t *filename);
int move(const wchar_t *filename, const wchar_t *destfilename);
int canPrefetch();
void setMetaDataCallback(api_readercallback *cb);
enum
{
ISMINE = 0,
OPEN = 10,
READ = 20,
WRITE = 30,
CLOSE = 40,
ABORT = 50,
GETLENGTH = 60,
GETPOS = 70,
CANSEEK = 80,
SEEK = 90,
HASHEADERS = 100,
GETHEADER = 110,
EXISTS = 120,
REMOVE = 130,
REMOVEUNDOABLE = 135,
BYTESAVAILABLE = 140,
SETMETADATACALLBACK = 150,
MOVE = 160,
CANPREFETCH = 170,
CANSETEOF = 180,
SETEOF = 190,
};
};
inline
int svc_fileReader::isMine(const wchar_t *filename, int mode)
{
return _call(ISMINE, -1, filename, mode);
}
inline int svc_fileReader::open(const wchar_t *filename, int mode)
{
return _call(OPEN, 0, filename, mode);
}
inline size_t svc_fileReader::read(int8_t *buffer, size_t length)
{
return _call(READ, 0, buffer, length);
}
inline size_t svc_fileReader::write(const int8_t *buffer, size_t length)
{
return _call(WRITE, 0, buffer, length);
}
inline void svc_fileReader::close()
{
_voidcall(CLOSE);
}
inline int svc_fileReader::canSetEOF()
{
return _call(CANSETEOF, 0);
}
inline int svc_fileReader::setEOF(uint64_t newlen)
{
return _call(SETEOF, -1, newlen);
}
inline void svc_fileReader::abort()
{
_voidcall(ABORT);
}
inline uint64_t svc_fileReader::getLength()
{
return _call(GETLENGTH, (uint64_t)-1);
}
inline uint64_t svc_fileReader::getPos()
{
return _call(GETPOS, (uint64_t)0);
}
inline int svc_fileReader::canSeek()
{
return _call(CANSEEK, 0);
}
inline int svc_fileReader::seek(uint64_t position)
{
return _call(SEEK, 0, position);
}
inline uint64_t svc_fileReader::bytesAvailable(uint64_t requested)
{
return _call(BYTESAVAILABLE, requested, requested);
}
inline int svc_fileReader::hasHeaders()
{
return _call(HASHEADERS, 0);
}
inline const char *svc_fileReader::getHeader(const char *header)
{
return _call(GETHEADER, (const char *)NULL, header);
}
inline int svc_fileReader::exists(const wchar_t *filename)
{
return _call(EXISTS, -1, filename);
}
inline int svc_fileReader::remove(const wchar_t *filename)
{
return _call(REMOVE, 0, filename);
}
inline
int svc_fileReader::removeUndoable(const wchar_t *filename)
{
return _call(REMOVEUNDOABLE, -1, filename);
}
inline int svc_fileReader::move(const wchar_t *filename, const wchar_t *destfilename)
{
return _call(MOVE, 0, filename, destfilename);
}
inline void svc_fileReader::setMetaDataCallback(api_readercallback *cb)
{
_voidcall(SETMETADATACALLBACK, cb);
}
inline int svc_fileReader::canPrefetch()
{
return _call(CANPREFETCH, 1);
}
#endif
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