5 #ifndef DMLITE_CPP_IO_H
6 #define DMLITE_CPP_IO_H
43 virtual struct ::stat
fstat(
void) throw (DmException);
49 virtual
size_t read(
char* buffer,
size_t count) throw (DmException);
55 virtual
size_t write(const
char* buffer,
size_t count) throw (DmException);
63 virtual
size_t readv(const struct iovec* vector,
size_t count) throw (DmException);
71 virtual
size_t writev(const struct iovec* vector,
size_t count) throw (DmException);
78 virtual
size_t pread(
void* buffer,
size_t count, off_t offset) throw (DmException);
85 virtual
size_t pwrite(const
void* buffer,
size_t count, off_t offset) throw (DmException);
90 virtual
void seek(off_t offset,
Whence whence) throw (DmException);
93 virtual off_t
tell(
void) throw (DmException);
96 virtual
void flush(
void) throw (DmException);
99 virtual
bool eof(
void) throw (DmException);
108 enum { kInsecure = 010 };
114 virtual std::string getImplId(
void)
const throw() = 0;
121 virtual
IOHandler* createIOHandler(const std::
string& pfn,
124 mode_t mode = 0660) throw (DmException);
129 virtual
void doneWriting(const
Location& loc) throw (DmException);
134 virtual
void setSecurityContext(const
SecurityContext* ctx) throw (DmException);
135 static
void setSecurityContext(
IODriver* i,
146 friend class StackInstance;
154 #endif // DMLITE_CPP_IO_H