badgerdb::BadBufferException Class Reference

An exception that is thrown when a buffer is found whose valid is false but other variables in BufDesc are assigned valid values. More...

#include <bad_buffer_exception.h>

Inheritance diagram for badgerdb::BadBufferException:

List of all members.

Public Member Functions
	BadBufferException (FrameId frameNoIn, bool dirtyIn, bool validIn, bool refbitIn)
virtual const std::string &	message () const
virtual const char *	what () const throw ()
Protected Attributes
FrameId	frameNo
bool	dirty
bool	valid
bool	refbit
std::string	message_
Friends
std::ostream &	operator<< (std::ostream &out, const BadgerDbException &exception)

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Detailed Description

An exception that is thrown when a buffer is found whose valid is false but other variables in BufDesc are assigned valid values.

Definition at line 20 of file bad_buffer_exception.h.

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Constructor & Destructor Documentation

badgerdb::BadBufferException::BadBufferException	(	FrameId	frameNoIn,
		bool	dirtyIn,
		bool	validIn,
		bool	refbitIn
	)		[explicit]

Constructs a bad buffer exception for the given file.

Definition at line 15 of file bad_buffer_exception.cpp.

    : BadgerDbException(""), frameNo(frameNoIn), dirty(dirtyIn), valid(validIn), refbit(refbitIn) {
  std::stringstream ss;
  ss << "This buffer is bad: " << frameNo;
  message_.assign(ss.str());
}

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Member Function Documentation

virtual const std::string& badgerdb::BadgerDbException::message

(

)

const [inline, virtual, inherited]

Returns a message describing the problem that caused this exception.

Returns:

Message describing the problem that caused this exception.

Definition at line 38 of file badgerdb_exception.h.

{ return message_; }

virtual const char* badgerdb::BadgerDbException::what

(

)

const throw () [inline, virtual, inherited]

Returns a description of the exception.

Returns:

Description of the exception.

Definition at line 45 of file badgerdb_exception.h.

{ return message_.c_str(); }

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Friends And Related Function Documentation

std::ostream& operator<<	(	std::ostream &	out,
		const BadgerDbException &	exception
	)		[friend, inherited]

Formats this exception for printing on the given stream.

Parameters:

out	Stream to print exception to.
exception	Exception to print.

Returns:

Stream with exception printed.

Definition at line 54 of file badgerdb_exception.h.

                                                                      {
    out << exception.message();
    return out;
  }

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Member Data Documentation

bool badgerdb::BadBufferException::dirty [protected]

True if buffer is dirty; false otherwise

Definition at line 36 of file bad_buffer_exception.h.

FrameId badgerdb::BadBufferException::frameNo [protected]

Frame number of bad buffer

Definition at line 31 of file bad_buffer_exception.h.

std::string badgerdb::BadgerDbException::message_ [protected, inherited]

Message describing the problem that caused this exception.

Definition at line 64 of file badgerdb_exception.h.

bool badgerdb::BadBufferException::refbit [protected]

Has this buffer frame been reference recently

Definition at line 46 of file bad_buffer_exception.h.

bool badgerdb::BadBufferException::valid [protected]

True if buffer is valid

Definition at line 41 of file bad_buffer_exception.h.

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The documentation for this class was generated from the following files:

• /afs/cs.wisc.edu/p/course/cs564-jignesh/public/html/projects/BadgerDB/bufmgr/src/exceptions/bad_buffer_exception.h
• /afs/cs.wisc.edu/p/course/cs564-jignesh/public/html/projects/BadgerDB/bufmgr/src/exceptions/bad_buffer_exception.cpp