5 #ifndef DMLITE_CPP_IO_H 6 #define DMLITE_CPP_IO_H 38 return std::string(
"IOHandler");
71 virtual size_t readv(
const struct iovec* vector,
size_t count)
throw (
DmException);
79 virtual size_t writev(
const struct iovec* vector,
size_t count)
throw (
DmException);
86 virtual size_t pread(
void* buffer,
size_t count, off_t offset)
throw (
DmException);
93 virtual size_t pwrite(
const void* buffer,
size_t count, off_t offset)
throw (
DmException);
116 enum { kInsecure = 010 };
122 virtual std::string
getImplId(
void)
const throw() = 0;
129 virtual IOHandler* createIOHandler(
const std::string& pfn,
134 const std::string& pfn,
148 static void setSecurityContext(
IODriver* i,
168 #endif // DMLITE_CPP_IO_H virtual size_t pwrite(const void *buffer, size_t count, off_t offset)
virtual size_t writev(const struct iovec *vector, size_t count)
Beginning of the file.
Definition: io.h:28
Base class for interfaces.
Definition: base.h:18
std::string getImplId(void) const
String ID of the implementation.
Definition: io.h:37
virtual size_t write(const char *buffer, size_t count)
virtual void seek(off_t offset, Whence whence)
Security context. To be created by the Authn.
Definition: authn.h:64
virtual ~IOHandler()
Virtual destructor.
Header generated by CMake with the build configuration used.
Current position.
Definition: io.h:29
Represent the complete location of a file.
Definition: pooldriver.h:42
Base exception class.
Definition: exceptions.h:17
virtual size_t read(char *buffer, size_t count)
CatalogInterface can only be instantiated through this class.
Definition: dmlite.h:42
virtual bool eof(void)
Return true if end of file.
virtual int fileno(void)
Return internal file descriptor, if any.
IO interface.
Definition: io.h:26
Whence
Definition: io.h:28
Exceptions used by the API.
Plug-ins must implement a concrete factory to be instantiated.
Definition: io.h:153
Helpful typedef for KeyValue containers.
Definition: extensible.h:20
virtual size_t readv(const struct iovec *vector, size_t count)
Base class for factories.
Definition: base.h:48
Extensible types (hold metadata).
virtual off_t tell(void)
Return the cursor position.
virtual void flush(void)
Flush the buffer.
virtual size_t pread(void *buffer, size_t count, off_t offset)
End of file.
Definition: io.h:30
IO Driver.
Definition: io.h:111
Namespace for the dmlite C++ API.
Definition: authn.h:15
virtual void close(void)
Close.
virtual struct ::stat fstat(void)