Inheritance diagram for leveldb::anonymous_namespace{memenv.cc}::SequentialFileImpl:

Collaboration diagram for leveldb::anonymous_namespace{memenv.cc}::SequentialFileImpl:

Public Member Functions
	SequentialFileImpl (FileState *file)

	~SequentialFileImpl ()

virtual Status	Read (size_t n, Slice result, char scratch)

virtual Status	Skip (uint64_t n)

Public Member Functions inherited from leveldb::SequentialFile
	SequentialFile ()

virtual	~SequentialFile ()

Private Attributes
FileState *	file_

uint64_t	pos_

Detailed Description

Definition at line 149 of file memenv.cc.

Constructor & Destructor Documentation

§ SequentialFileImpl()

leveldb::anonymous_namespace{memenv.cc}::SequentialFileImpl::SequentialFileImpl ( FileState * file )

inlineexplicit

Definition at line 151 of file memenv.cc.

                                                : file_(file), pos_(0) {
     file_->Ref();
   }

§ ~SequentialFileImpl()

leveldb::anonymous_namespace{memenv.cc}::SequentialFileImpl::~SequentialFileImpl ( )

inline

Definition at line 155 of file memenv.cc.

                         {
     file_->Unref();
   }

Member Function Documentation

§ Read()

virtual Status leveldb::anonymous_namespace{memenv.cc}::SequentialFileImpl::Read	(	size_t	n,
		Slice *	result,
		char *	scratch
	)

inlinevirtual

Implements leveldb::SequentialFile.

Definition at line 159 of file memenv.cc.

                                                               {
     Status s = file_->Read(pos_, n, result, scratch);
     if (s.ok()) {
       pos_ += result->size();
     }
     return s;
   }

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§ Skip()

virtual Status leveldb::anonymous_namespace{memenv.cc}::SequentialFileImpl::Skip ( uint64_t n )

inlinevirtual

Implements leveldb::SequentialFile.

Definition at line 167 of file memenv.cc.

                                   {
     if (pos_ > file_->Size()) {
       return Status::IOError("pos_ > file_->Size()");
     }
     const uint64_t available = file_->Size() - pos_;
     if (n > available) {
       n = available;
     }
     pos_ += n;
     return Status::OK();
   }

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Member Data Documentation

§ file_

FileState* leveldb::anonymous_namespace{memenv.cc}::SequentialFileImpl::file_

private

Definition at line 180 of file memenv.cc.

§ pos_

uint64_t leveldb::anonymous_namespace{memenv.cc}::SequentialFileImpl::pos_